757  
FNUS51 KPBZ 171634  
FWFPBZ  
 
FIRE WEATHER PLANNING FORECAST  
NATIONAL WEATHER SERVICE PITTSBURGH PA  
1234 PM EDT THU SEP 17 2026  
   
DISCUSSION  
 
RAIN CHANCES DIMINISH THROUGH FRIDAY MORNING AS HIGH PRESSURE  
BUILDS NORTH OF THE REGION AND PUSHES A NOMINAL BOUNDARY  
SOUTHWARD.  
 
THE UPPER PATTERN WILL MAINTAIN THE UPPER OHIO RIVER VALLEY REGION  
WITHIN THE NORTHERN PERIPHERY OF THE RIDGE THIS WEEKEND INTO NEXT  
WEEK. THIS IS LIKELY TO RESULT IN A RETURN OF THE WARM, HUMID  
AIRMASS WITH ROUNDS OF SHOWERS AND THUNDERSTORMS CROSSING THE  
AREA.  
 
OHZ039-180815-  
TUSCARAWAS-  
INCLUDING THE CITIES OF NEW PHILADELPHIA AND DOVER  
1234 PM EDT THU SEP 17 2026  
 
TONIGHT FRI FRI NIGHT SAT  
 
CLOUD COVER PCLDY PCLDY MCLEAR PCLDY  
PRECIP TYPE SHOWERS NONE NONE NONE  
CHANCE PRECIP (%) 30 0 0 0  
CHANCE OF THUNDER (%) 0 0 0 0  
TEMP (24H TREND) 65 (-4) 76 (-6) 56 77  
RH % (24H TREND) 100 (0) 62 (-13) 99 61  
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR NE 5 LGT/VAR  
WIND 20FT/LATE(MPH) LGT/VAR NE 5 LGT/VAR LGT/VAR  
PRECIP AMOUNT 0.06 0.00 0.00 0.00  
PRECIP DURATION 2  
PRECIP BEGIN 6 PM  
PRECIP END 6 AM  
MIXING HGT(M-AGL/MSL) 1120  
MIXING HGT(FT-AGL/MSL) 3680  
TRANSPORT WND (MPH) NE 9 N/A  
VENT RATE (KT-FT) 29440  
CATEGORY DAY 3  
INVERSION 7PM 66F/9AM 8PM  
DISPERSION 3  
MAX ADI EARLY 5 VERY POOR 26 FAIR 5 VERY POOR 15 GEN POOR  
MAX ADI LATE 4 VERY POOR 43 GEN GOOD 4 VERY POOR 21 FAIR  
MAX LVORI EARLY 10 8 7 8  
MAX LVORI LATE 9 3 9 3  
 
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 
 
 
OHZ040-180815-  
CARROLL-  
INCLUDING THE CITIES OF CARROLLTON AND MALVERN  
1234 PM EDT THU SEP 17 2026  
 
TONIGHT FRI FRI NIGHT SAT  
 
CLOUD COVER PCLDY PCLDY MCLEAR PCLDY  
PRECIP TYPE SHOWERS NONE NONE NONE  
CHANCE PRECIP (%) 30 0 0 0  
CHANCE OF THUNDER (%) 0 0 0 0  
TEMP (24H TREND) 64 (-5) 76 (-5) 56 76  
RH % (24H TREND) 100 (0) 60 (-15) 99 62  
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR NE 6 LGT/VAR  
WIND 20FT/LATE(MPH) LGT/VAR N 6 LGT/VAR LGT/VAR  
PRECIP AMOUNT 0.08 0.00 0.00 0.00  
PRECIP DURATION 1  
PRECIP BEGIN 6 PM  
PRECIP END 6 AM  
MIXING HGT(M-AGL/MSL) 1220  
MIXING HGT(FT-AGL/MSL) 4000  
TRANSPORT WND (MPH) NE 9 N/A  
VENT RATE (KT-FT) 32000  
CATEGORY DAY 3  
INVERSION 7PM 66F/9AM 8PM  
DISPERSION 3  
MAX ADI EARLY 6 VERY POOR 27 FAIR 8 POOR 16 GEN POOR  
MAX ADI LATE 4 VERY POOR 39 FAIR 5 VERY POOR 20 GEN POOR  
MAX LVORI EARLY 9 8 7 7  
MAX LVORI LATE 9 3 9 3  
 
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 
 
 
OHZ041-180815-  
COLUMBIANA-  
INCLUDING THE CITIES OF EAST LIVERPOOL, SALEM, AND COLUMBIANA  
1234 PM EDT THU SEP 17 2026  
 
TONIGHT FRI FRI NIGHT SAT  
 
CLOUD COVER PCLDY PCLDY PCLDY PCLDY  
PRECIP TYPE SHOWERS NONE NONE SHOWERS  
CHANCE PRECIP (%) 20 0 0 20  
CHANCE OF THUNDER (%) 0 0 0 0  
TEMP (24H TREND) 64 (-4) 76 (-5) 56 76  
RH % (24H TREND) 100 (0) 59 (-17) 99 62  
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR N 5 LGT/VAR  
WIND 20FT/LATE(MPH) LGT/VAR N 5 LGT/VAR LGT/VAR  
PRECIP AMOUNT 0.06 0.00 0.00 0.01  
PRECIP DURATION 1 0  
PRECIP BEGIN 6 PM 2 PM  
PRECIP END 4 AM CONTINUING  
MIXING HGT(M-AGL/MSL) 1350  
MIXING HGT(FT-AGL/MSL) 4410  
TRANSPORT WND (MPH) N 10 N/A  
VENT RATE (KT-FT) 39690  
CATEGORY DAY 3  
INVERSION 7PM 66F/9AM 8PM  
DISPERSION 3  
MAX ADI EARLY 6 VERY POOR 28 FAIR 5 VERY POOR 16 GEN POOR  
MAX ADI LATE 4 VERY POOR 47 GEN GOOD 5 VERY POOR 18 GEN POOR  
MAX LVORI EARLY 9 7 7 6  
MAX LVORI LATE 9 3 8 3  
 
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 
 
 
OHZ048-180815-  
COSHOCTON-  
INCLUDING THE CITY OF COSHOCTON  
1234 PM EDT THU SEP 17 2026  
 
TONIGHT FRI FRI NIGHT SAT  
 
CLOUD COVER PCLDY PCLDY MCLEAR PCLDY  
PRECIP TYPE TSTMS NONE NONE NONE  
CHANCE PRECIP (%) 40 0 0 0  
CHANCE OF THUNDER (%) 20 0 0 0  
TEMP (24H TREND) 65 (-3) 76 (-7) 55 77  
RH % (24H TREND) 100 (0) 66 (-10) 100 64  
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR  
WIND 20FT/LATE(MPH) LGT/VAR NE 5 LGT/VAR LGT/VAR  
PRECIP AMOUNT 0.05 0.00 0.00 0.00  
PRECIP DURATION 2  
PRECIP BEGIN 6 PM  
PRECIP END 6 AM  
MIXING HGT(M-AGL/MSL) 1160  
MIXING HGT(FT-AGL/MSL) 3820  
TRANSPORT WND (MPH) NE 9 N/A  
VENT RATE (KT-FT) 30560  
CATEGORY DAY 3  
INVERSION 7PM 67F/9AM 8PM  
DISPERSION 3  
MAX ADI EARLY 3 VERY POOR 21 FAIR 4 VERY POOR 11 POOR  
MAX ADI LATE 4 VERY POOR 43 GEN GOOD 4 VERY POOR 26 FAIR  
MAX LVORI EARLY 10 8 7 8  
MAX LVORI LATE 10 4 9 3  
 
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 
 
 
OHZ049-180815-  
HARRISON-  
INCLUDING THE CITY OF CADIZ  
1234 PM EDT THU SEP 17 2026  
 
TONIGHT FRI FRI NIGHT SAT  
 
CLOUD COVER PCLDY PCLDY MCLEAR PCLDY  
PRECIP TYPE SHOWERS NONE NONE NONE  
CHANCE PRECIP (%) 30 0 0 0  
CHANCE OF THUNDER (%) 0 0 0 0  
TEMP (24H TREND) 65 (-4) 77 (-6) 56 78  
RH % (24H TREND) 100 (0) 63 (-13) 100 60  
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR  
WIND 20FT/LATE(MPH) LGT/VAR NE 5 LGT/VAR LGT/VAR  
PRECIP AMOUNT 0.07 0.00 0.00 0.00  
PRECIP DURATION 2  
PRECIP BEGIN 6 PM  
PRECIP END 6 AM  
MIXING HGT(M-AGL/MSL) 1060  
MIXING HGT(FT-AGL/MSL) 3460  
TRANSPORT WND (MPH) NE 8 N/A  
VENT RATE (KT-FT) 24220  
CATEGORY DAY 3  
INVERSION 7PM 67F/9AM 8PM  
DISPERSION 3  
MAX ADI EARLY 5 VERY POOR 24 FAIR 4 VERY POOR 13 GEN POOR  
MAX ADI LATE 4 VERY POOR 39 FAIR 4 VERY POOR 24 FAIR  
MAX LVORI EARLY 10 8 9 8  
MAX LVORI LATE 10 3 9 3  
 
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 
 
 
OHZ050-180815-  
JEFFERSON OH-  
INCLUDING THE CITY OF STEUBENVILLE  
1234 PM EDT THU SEP 17 2026  
 
TONIGHT FRI FRI NIGHT SAT  
 
CLOUD COVER PCLDY PCLDY MCLEAR PCLDY  
PRECIP TYPE SHOWERS NONE NONE NONE  
CHANCE PRECIP (%) 20 0 0 0  
CHANCE OF THUNDER (%) 0 0 0 0  
TEMP (24H TREND) 65 (-4) 77 (-5) 56 78  
RH % (24H TREND) 100 (0) 61 (-15) 100 60  
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR N 5 LGT/VAR  
WIND 20FT/LATE(MPH) LGT/VAR N 5 LGT/VAR LGT/VAR  
PRECIP AMOUNT 0.09 0.00 0.00 0.00  
PRECIP DURATION 1  
PRECIP BEGIN 6 PM  
PRECIP END 6 AM  
MIXING HGT(M-AGL/MSL) 1140  
MIXING HGT(FT-AGL/MSL) 3740  
TRANSPORT WND (MPH) N 9 N/A  
VENT RATE (KT-FT) 29920  
CATEGORY DAY 3  
INVERSION 7PM 67F/9AM 8PM  
DISPERSION 3  
MAX ADI EARLY 6 VERY POOR 25 FAIR 4 VERY POOR 15 GEN POOR  
MAX ADI LATE 4 VERY POOR 39 FAIR 4 VERY POOR 24 FAIR  
MAX LVORI EARLY 10 8 7 8  
MAX LVORI LATE 10 3 9 3  
 
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 
 
 
OHZ057-180815-  
MUSKINGUM-  
INCLUDING THE CITY OF ZANESVILLE  
1234 PM EDT THU SEP 17 2026  
 
TONIGHT FRI FRI NIGHT SAT  
 
CLOUD COVER PCLDY PCLDY MCLEAR PCLDY  
PRECIP TYPE TSTMS NONE NONE NONE  
CHANCE PRECIP (%) 50 0 0 0  
CHANCE OF THUNDER (%) 20 0 0 0  
TEMP (24H TREND) 66 (-3) 77 (-7) 56 79  
RH % (24H TREND) 100 (0) 69 (-4) 100 61  
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR  
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR  
PRECIP AMOUNT 0.07 0.00 0.00 0.00  
PRECIP DURATION 2  
PRECIP BEGIN 6 PM  
PRECIP END 6 AM  
MIXING HGT(M-AGL/MSL) 1200  
MIXING HGT(FT-AGL/MSL) 3950  
TRANSPORT WND (MPH) NE 8 N/A  
VENT RATE (KT-FT) 27650  
CATEGORY DAY 3  
INVERSION 7PM 68F/9AM 8PM  
DISPERSION 3  
MAX ADI EARLY 3 VERY POOR 18 GEN POOR 4 VERY POOR 10 POOR  
MAX ADI LATE 4 VERY POOR 35 FAIR 4 VERY POOR 30 FAIR  
MAX LVORI EARLY 10 9 8 8  
MAX LVORI LATE 10 4 9 3  
 
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 
 
 
OHZ058-180815-  
GUERNSEY-  
INCLUDING THE CITY OF CAMBRIDGE  
1234 PM EDT THU SEP 17 2026  
 
TONIGHT FRI FRI NIGHT SAT  
 
CLOUD COVER PCLDY PCLDY PCLDY PCLDY  
PRECIP TYPE TSTMS NONE NONE NONE  
CHANCE PRECIP (%) 40 0 0 0  
CHANCE OF THUNDER (%) 20 0 0 0  
TEMP (24H TREND) 67 (-2) 78 (-6) 57 80  
RH % (24H TREND) 100 (0) 64 (-10) 100 59  
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR  
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR  
PRECIP AMOUNT 0.06 0.00 0.00 0.00  
PRECIP DURATION 2  
PRECIP BEGIN 6 PM  
PRECIP END 6 AM  
MIXING HGT(M-AGL/MSL) 1230  
MIXING HGT(FT-AGL/MSL) 4040  
TRANSPORT WND (MPH) NE 8 N/A  
VENT RATE (KT-FT) 28280  
CATEGORY DAY 3  
INVERSION 7PM 68F/9AM 8PM  
DISPERSION 3  
MAX ADI EARLY 4 VERY POOR 16 GEN POOR 5 VERY POOR 12 POOR  
MAX ADI LATE 3 VERY POOR 34 FAIR 4 VERY POOR 31 FAIR  
MAX LVORI EARLY 10 9 9 8  
MAX LVORI LATE 10 3 9 3  
 
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 
 
 
OHZ059-180815-  
BELMONT-  
INCLUDING THE CITIES OF MARTINS FERRY AND ST. CLAIRSVILLE  
1234 PM EDT THU SEP 17 2026  
 
TONIGHT FRI FRI NIGHT SAT  
 
CLOUD COVER PCLDY PCLDY MCLEAR PCLDY  
PRECIP TYPE TSTMS NONE NONE NONE  
CHANCE PRECIP (%) 40 0 0 0  
CHANCE OF THUNDER (%) 20 0 0 0  
TEMP (24H TREND) 67 (-3) 78 (-6) 58 80  
RH % (24H TREND) 100 (0) 66 (-9) 100 60  
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR  
WIND 20FT/LATE(MPH) LGT/VAR NE 5 LGT/VAR LGT/VAR  
PRECIP AMOUNT 0.10 0.00 0.00 0.00  
PRECIP DURATION 2  
PRECIP BEGIN 6 PM  
PRECIP END 6 AM  
MIXING HGT(M-AGL/MSL) 1110  
MIXING HGT(FT-AGL/MSL) 3630  
TRANSPORT WND (MPH) NE 9 N/A  
VENT RATE (KT-FT) 29040  
CATEGORY DAY 3  
INVERSION 7PM 68F/9AM 8PM  
DISPERSION 3  
MAX ADI EARLY 5 VERY POOR 16 GEN POOR 4 VERY POOR 13 GEN POOR  
MAX ADI LATE 3 VERY POOR 35 FAIR 4 VERY POOR 32 FAIR  
MAX LVORI EARLY 9 9 9 8  
MAX LVORI LATE 10 3 9 3  
 
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 
 
 
OHZ068-180815-  
NOBLE-  
INCLUDING THE CITY OF CALDWELL  
1234 PM EDT THU SEP 17 2026  
 
TONIGHT FRI FRI NIGHT SAT  
 
CLOUD COVER PCLDY PCLDY PCLDY MCLEAR  
PRECIP TYPE TSTMS NONE NONE NONE  
CHANCE PRECIP (%) 50 0 0 0  
CHANCE OF THUNDER (%) 20 0 0 0  
TEMP (24H TREND) 67 (-2) 79 (-6) 58 80  
RH % (24H TREND) 100 (0) 70 (-4) 100 61  
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR  
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR  
PRECIP AMOUNT 0.08 0.00 0.00 0.00  
PRECIP DURATION 2  
PRECIP BEGIN 6 PM  
PRECIP END 6 AM  
MIXING HGT(M-AGL/MSL) 1210  
MIXING HGT(FT-AGL/MSL) 3960  
TRANSPORT WND (MPH) NE 8 N/A  
VENT RATE (KT-FT) 27720  
CATEGORY DAY 3  
INVERSION 7PM 69F/9AM 8PM  
DISPERSION 3  
MAX ADI EARLY 3 VERY POOR 15 GEN POOR 5 VERY POOR 12 POOR  
MAX ADI LATE 3 VERY POOR 20 GEN POOR 4 VERY POOR 31 FAIR  
MAX LVORI EARLY 9 9 8 8  
MAX LVORI LATE 9 4 9 3  
 
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 
 
 
OHZ069-180815-  
MONROE-  
INCLUDING THE CITY OF WOODSFIELD  
1234 PM EDT THU SEP 17 2026  
 
TONIGHT FRI FRI NIGHT SAT  
 
CLOUD COVER PCLDY PCLDY MCLEAR PCLDY  
PRECIP TYPE TSTMS SHOWERS NONE NONE  
CHANCE PRECIP (%) 60 30 0 0  
CHANCE OF THUNDER (%) 20 0 0 0  
TEMP (24H TREND) 68 (-1) 79 (-6) 59 81  
RH % (24H TREND) 100 (0) 70 (-5) 100 62  
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR  
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR  
PRECIP AMOUNT 0.11 0.01 0.00 0.00  
PRECIP DURATION 3 0  
PRECIP BEGIN 6 PM CONTINUING  
PRECIP END CONTINUING 8 AM  
MIXING HGT(M-AGL/MSL) 1180  
MIXING HGT(FT-AGL/MSL) 3870  
TRANSPORT WND (MPH) N 8 N/A  
VENT RATE (KT-FT) 27090  
CATEGORY DAY 3  
INVERSION 7PM 69F/9AM 8PM  
DISPERSION 3  
MAX ADI EARLY 3 VERY POOR 15 GEN POOR 4 VERY POOR 11 POOR  
MAX ADI LATE 3 VERY POOR 24 FAIR 4 VERY POOR 33 FAIR  
MAX LVORI EARLY 9 9 9 9  
MAX LVORI LATE 9 4 9 3  
 
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 
 
 
PAZ007-180815-  
MERCER-  
INCLUDING THE CITIES OF SHARON, HERMITAGE, AND GROVE CITY  
1234 PM EDT THU SEP 17 2026  
 
TONIGHT FRI FRI NIGHT SAT  
 
CLOUD COVER MCLDY MCLEAR PCLDY PCLDY  
PRECIP TYPE NONE NONE NONE SHOWERS  
CHANCE PRECIP (%) 0 0 0 20  
CHANCE OF THUNDER (%) 0 0 0 0  
TEMP (24H TREND) 62 (-5) 75 (-5) 54 74  
RH % (24H TREND) 100 (0) 57 (-22) 99 62  
WIND 20FT/EARLY(MPH) LGT/VAR N 5 N 5 E 5  
WIND 20FT/LATE(MPH) LGT/VAR N 6 LGT/VAR LGT/VAR  
PRECIP AMOUNT 0.00 0.00 0.00 0.00  
PRECIP DURATION 0  
PRECIP BEGIN 2 PM  
PRECIP END CONTINUING  
MIXING HGT(M-AGL/MSL) 1340  
MIXING HGT(FT-AGL/MSL) 4400  
TRANSPORT WND (MPH) N 10 N/A  
VENT RATE (KT-FT) 39600  
CATEGORY DAY 3  
INVERSION 7PM 64F/9AM 8PM  
DISPERSION 3  
MAX ADI EARLY 7 POOR 30 FAIR 9 POOR 20 GEN POOR  
MAX ADI LATE 4 VERY POOR 50 GEN GOOD 6 VERY POOR 20 GEN POOR  
MAX LVORI EARLY 9 8 8 6  
MAX LVORI LATE 9 3 8 3  
 
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 
 
 
PAZ008-180815-  
VENANGO-  
INCLUDING THE CITIES OF OIL CITY AND FRANKLIN  
1234 PM EDT THU SEP 17 2026  
 
TONIGHT FRI FRI NIGHT SAT  
 
CLOUD COVER MCLDY MCLEAR PCLDY PCLDY  
PRECIP TYPE SHOWERS NONE NONE NONE  
CHANCE PRECIP (%) 20 0 0 0  
CHANCE OF THUNDER (%) 0 0 0 0  
TEMP (24H TREND) 59 (-8) 75 (-4) 52 72  
RH % (24H TREND) 100 (0) 57 (-25) 100 63  
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR  
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR  
PRECIP AMOUNT 0.00 0.00 0.00 0.00  
PRECIP DURATION 0  
PRECIP BEGIN 6 PM  
PRECIP END 9 PM  
MIXING HGT(M-AGL/MSL) 1470  
MIXING HGT(FT-AGL/MSL) 4830  
TRANSPORT WND (MPH) N 10 N/A  
VENT RATE (KT-FT) 43470  
CATEGORY DAY 3  
INVERSION 7PM 62F/9AM 8PM  
DISPERSION 3  
MAX ADI EARLY 6 VERY POOR 26 FAIR 7 POOR 19 GEN POOR  
MAX ADI LATE 3 VERY POOR 49 GEN GOOD 5 VERY POOR 23 FAIR  
MAX LVORI EARLY 9 9 8 6  
MAX LVORI LATE 9 3 9 3  
 
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 
 
 
PAZ009-180815-  
FOREST-  
INCLUDING THE CITY OF TIONESTA  
1234 PM EDT THU SEP 17 2026  
 
TONIGHT FRI FRI NIGHT SAT  
 
CLOUD COVER MCLDY MCLEAR PCLDY PCLDY  
PRECIP TYPE SHOWERS NONE NONE NONE  
CHANCE PRECIP (%) 40 0 0 0  
CHANCE OF THUNDER (%) 0 0 0 0  
TEMP (24H TREND) 59 (-7) 74 (-5) 49 72  
RH % (24H TREND) 100 (0) 52 (-26) 100 57  
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR  
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR  
PRECIP AMOUNT 0.01 0.00 0.00 0.00  
PRECIP DURATION 1  
PRECIP BEGIN 6 PM  
PRECIP END 10 PM  
MIXING HGT(M-AGL/MSL) 1450  
MIXING HGT(FT-AGL/MSL) 4750  
TRANSPORT WND (MPH) N 12 N/A  
VENT RATE (KT-FT) 47500  
CATEGORY DAY 3  
INVERSION 7PM 61F/9AM 8PM  
DISPERSION 3  
MAX ADI EARLY 4 VERY POOR 26 FAIR 6 VERY POOR 17 GEN POOR  
MAX ADI LATE 3 VERY POOR 49 GEN GOOD 4 VERY POOR 24 FAIR  
MAX LVORI EARLY 9 9 9 6  
MAX LVORI LATE 9 2 9 2  
 
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 
 
 
PAZ013-180815-  
LAWRENCE-  
INCLUDING THE CITIES OF NEW CASTLE AND ELLWOOD CITY  
1234 PM EDT THU SEP 17 2026  
 
TONIGHT FRI FRI NIGHT SAT  
 
CLOUD COVER PCLDY PCLDY PCLDY PCLDY  
PRECIP TYPE NONE NONE NONE SHOWERS  
CHANCE PRECIP (%) 0 0 0 20  
CHANCE OF THUNDER (%) 0 0 0 0  
TEMP (24H TREND) 63 (-5) 77 (-5) 55 76  
RH % (24H TREND) 100 (0) 55 (-21) 99 61  
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR  
WIND 20FT/LATE(MPH) LGT/VAR N 5 LGT/VAR LGT/VAR  
PRECIP AMOUNT 0.00 0.00 0.00 0.02  
PRECIP DURATION 0  
PRECIP BEGIN 2 PM  
PRECIP END CONTINUING  
MIXING HGT(M-AGL/MSL) 1360  
MIXING HGT(FT-AGL/MSL) 4470  
TRANSPORT WND (MPH) N 10 N/A  
VENT RATE (KT-FT) 40230  
CATEGORY DAY 3  
INVERSION 7PM 65F/9AM 8PM  
DISPERSION 3  
MAX ADI EARLY 7 POOR 29 FAIR 6 VERY POOR 18 GEN POOR  
MAX ADI LATE 4 VERY POOR 50 GEN GOOD 7 POOR 21 FAIR  
MAX LVORI EARLY 9 8 9 6  
MAX LVORI LATE 9 3 9 3  
 
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 
 
 
PAZ014-180815-  
BUTLER-  
INCLUDING THE CITY OF BUTLER  
1234 PM EDT THU SEP 17 2026  
 
TONIGHT FRI FRI NIGHT SAT  
 
CLOUD COVER PCLDY PCLDY PCLDY PCLDY  
PRECIP TYPE SHOWERS NONE NONE SHOWERS  
CHANCE PRECIP (%) 20 0 0 20  
CHANCE OF THUNDER (%) 0 0 0 0  
TEMP (24H TREND) 63 (-4) 77 (-4) 54 75  
RH % (24H TREND) 100 (0) 58 (-22) 100 64  
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR E 5  
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR  
PRECIP AMOUNT 0.02 0.00 0.00 0.01  
PRECIP DURATION 1 0  
PRECIP BEGIN 6 PM 2 PM  
PRECIP END 11 PM CONTINUING  
MIXING HGT(M-AGL/MSL) 1460  
MIXING HGT(FT-AGL/MSL) 4800  
TRANSPORT WND (MPH) N 9 N/A  
VENT RATE (KT-FT) 38400  
CATEGORY DAY 3  
INVERSION 7PM 65F/9AM 8PM  
DISPERSION 3  
MAX ADI EARLY 6 VERY POOR 25 FAIR 6 VERY POOR 18 GEN POOR  
MAX ADI LATE 4 VERY POOR 46 GEN GOOD 7 POOR 21 FAIR  
MAX LVORI EARLY 9 9 9 6  
MAX LVORI LATE 9 3 9 3  
 
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 
 
 
PAZ015-180815-  
CLARION-  
INCLUDING THE CITY OF CLARION  
1234 PM EDT THU SEP 17 2026  
 
TONIGHT FRI FRI NIGHT SAT  
 
CLOUD COVER PCLDY MCLEAR PCLDY PCLDY  
PRECIP TYPE SHOWERS NONE NONE NONE  
CHANCE PRECIP (%) 30 0 0 0  
CHANCE OF THUNDER (%) 0 0 0 0  
TEMP (24H TREND) 61 (-6) 76 (-4) 52 74  
RH % (24H TREND) 100 (0) 53 (-25) 100 58  
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR  
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR  
PRECIP AMOUNT 0.00 0.00 0.00 0.00  
PRECIP DURATION 1  
PRECIP BEGIN 6 PM  
PRECIP END 10 PM  
MIXING HGT(M-AGL/MSL) 1510  
MIXING HGT(FT-AGL/MSL) 4950  
TRANSPORT WND (MPH) N 10 N/A  
VENT RATE (KT-FT) 44550  
CATEGORY DAY 3  
INVERSION 7PM 63F/9AM 8PM  
DISPERSION 3  
MAX ADI EARLY 5 VERY POOR 26 FAIR 7 POOR 19 GEN POOR  
MAX ADI LATE 4 VERY POOR 49 GEN GOOD 5 VERY POOR 25 FAIR  
MAX LVORI EARLY 9 9 8 6  
MAX LVORI LATE 9 3 9 3  
 
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 
 
 
PAZ016-180815-  
JEFFERSON PA-  
INCLUDING THE CITIES OF PUNXSUTAWNEY AND BROOKVILLE  
1234 PM EDT THU SEP 17 2026  
 
TONIGHT FRI FRI NIGHT SAT  
 
CLOUD COVER MCLDY PCLDY PCLDY PCLDY  
PRECIP TYPE SHOWERS NONE NONE NONE  
CHANCE PRECIP (%) 40 0 0 0  
CHANCE OF THUNDER (%) 0 0 0 0  
TEMP (24H TREND) 61 (-5) 75 (-4) 50 73  
RH % (24H TREND) 100 (0) 53 (-27) 99 58  
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR  
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR  
PRECIP AMOUNT 0.02 0.00 0.00 0.00  
PRECIP DURATION 1  
PRECIP BEGIN 6 PM  
PRECIP END 10 PM  
MIXING HGT(M-AGL/MSL) 1530  
MIXING HGT(FT-AGL/MSL) 5030  
TRANSPORT WND (MPH) N 10 N/A  
VENT RATE (KT-FT) 45270  
CATEGORY DAY 3  
INVERSION 7PM 63F/9AM 8PM  
DISPERSION 3  
MAX ADI EARLY 6 VERY POOR 25 FAIR 5 VERY POOR 18 GEN POOR  
MAX ADI LATE 4 VERY POOR 49 GEN GOOD 6 VERY POOR 29 FAIR  
MAX LVORI EARLY 9 9 7 6  
MAX LVORI LATE 9 3 8 3  
 
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 
 
 
PAZ020-180815-  
BEAVER-  
INCLUDING THE CITIES OF ALIQUIPPA, BEAVER FALLS, AMBRIDGE,  
AND MONACA  
1234 PM EDT THU SEP 17 2026  
 
TONIGHT FRI FRI NIGHT SAT  
 
CLOUD COVER PCLDY PCLDY MCLEAR PCLDY  
PRECIP TYPE SHOWERS NONE NONE SHOWERS  
CHANCE PRECIP (%) 20 0 0 20  
CHANCE OF THUNDER (%) 0 0 0 0  
TEMP (24H TREND) 64 (-4) 77 (-5) 56 76  
RH % (24H TREND) 100 (0) 59 (-19) 99 61  
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR  
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR  
PRECIP AMOUNT 0.06 0.00 0.00 0.01  
PRECIP DURATION 1 0  
PRECIP BEGIN 6 PM 2 PM  
PRECIP END 4 AM CONTINUING  
MIXING HGT(M-AGL/MSL) 1340  
MIXING HGT(FT-AGL/MSL) 4400  
TRANSPORT WND (MPH) N 9 N/A  
VENT RATE (KT-FT) 35200  
CATEGORY DAY 3  
INVERSION 7PM 66F/9AM 8PM  
DISPERSION 3  
MAX ADI EARLY 7 POOR 25 FAIR 6 VERY POOR 19 GEN POOR  
MAX ADI LATE 4 VERY POOR 47 GEN GOOD 5 VERY POOR 24 FAIR  
MAX LVORI EARLY 9 9 6 6  
MAX LVORI LATE 9 3 8 3  
 
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 
 
 
PAZ021-180815-  
ALLEGHENY-  
INCLUDING THE CITY OF PITTSBURGH METRO AREA  
1234 PM EDT THU SEP 17 2026  
 
TONIGHT FRI FRI NIGHT SAT  
 
CLOUD COVER PCLDY PCLDY MCLEAR PCLDY  
PRECIP TYPE SHOWERS NONE NONE NONE  
CHANCE PRECIP (%) 20 0 0 0  
CHANCE OF THUNDER (%) 0 0 0 0  
TEMP (24H TREND) 65 (-4) 78 (-5) 57 77  
RH % (24H TREND) 100 (0) 62 (-17) 99 62  
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR N 5 E 5  
WIND 20FT/LATE(MPH) LGT/VAR N 5 LGT/VAR LGT/VAR  
PRECIP AMOUNT 0.05 0.00 0.00 0.00  
PRECIP DURATION 1  
PRECIP BEGIN 6 PM  
PRECIP END 4 AM  
MIXING HGT(M-AGL/MSL) 1190  
MIXING HGT(FT-AGL/MSL) 3890  
TRANSPORT WND (MPH) N 8 N/A  
VENT RATE (KT-FT) 27230  
CATEGORY DAY 3  
INVERSION 7PM 67F/9AM 8PM  
DISPERSION 3  
MAX ADI EARLY 7 POOR 21 FAIR 4 VERY POOR 19 GEN POOR  
MAX ADI LATE 3 VERY POOR 38 FAIR 5 VERY POOR 26 FAIR  
MAX LVORI EARLY 9 9 7 7  
MAX LVORI LATE 9 3 9 3  
 
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 
 
 
PAZ022-180815-  
ARMSTRONG-  
INCLUDING THE CITIES OF KITTANNING AND FORD CITY  
1234 PM EDT THU SEP 17 2026  
 
TONIGHT FRI FRI NIGHT SAT  
 
CLOUD COVER PCLDY PCLDY PCLDY PCLDY  
PRECIP TYPE SHOWERS NONE NONE NONE  
CHANCE PRECIP (%) 30 0 0 0  
CHANCE OF THUNDER (%) 0 0 0 0  
TEMP (24H TREND) 63 (-4) 77 (-5) 54 76  
RH % (24H TREND) 100 (0) 59 (-23) 100 63  
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR E 5  
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR  
PRECIP AMOUNT 0.01 0.00 0.00 0.00  
PRECIP DURATION 1  
PRECIP BEGIN 6 PM  
PRECIP END 12 AM  
MIXING HGT(M-AGL/MSL) 1430  
MIXING HGT(FT-AGL/MSL) 4680  
TRANSPORT WND (MPH) N 9 N/A  
VENT RATE (KT-FT) 37440  
CATEGORY DAY 3  
INVERSION 7PM 65F/9AM 8PM  
DISPERSION 3  
MAX ADI EARLY 6 VERY POOR 21 FAIR 5 VERY POOR 20 GEN POOR  
MAX ADI LATE 3 VERY POOR 43 GEN GOOD 6 VERY POOR 29 FAIR  
MAX LVORI EARLY 9 9 9 6  
MAX LVORI LATE 9 3 9 3  
 
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 
 
 
PAZ029-180815-  
WASHINGTON-  
INCLUDING THE CITIES OF WASHINGTON AND CANONSBURG  
1234 PM EDT THU SEP 17 2026  
 
TONIGHT FRI FRI NIGHT SAT  
 
CLOUD COVER PCLDY PCLDY MCLEAR PCLDY  
PRECIP TYPE SHOWERS NONE NONE NONE  
CHANCE PRECIP (%) 20 0 0 0  
CHANCE OF THUNDER (%) 0 0 0 0  
TEMP (24H TREND) 66 (-3) 77 (-5) 57 77  
RH % (24H TREND) 100 (0) 64 (-16) 99 63  
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR  
WIND 20FT/LATE(MPH) LGT/VAR N 6 LGT/VAR LGT/VAR  
PRECIP AMOUNT 0.08 0.00 0.00 0.00  
PRECIP DURATION 1  
PRECIP BEGIN 6 PM  
PRECIP END 6 AM  
MIXING HGT(M-AGL/MSL) 1080  
MIXING HGT(FT-AGL/MSL) 3540  
TRANSPORT WND (MPH) N 9 N/A  
VENT RATE (KT-FT) 28320  
CATEGORY DAY 3  
INVERSION 7PM 67F/9AM 8PM  
DISPERSION 3  
MAX ADI EARLY 6 VERY POOR 15 GEN POOR 4 VERY POOR 18 GEN POOR  
MAX ADI LATE 3 VERY POOR 35 FAIR 4 VERY POOR 26 FAIR  
MAX LVORI EARLY 9 8 6 7  
MAX LVORI LATE 9 3 9 3  
 
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 
 
 
PAZ031-180815-  
GREENE-  
INCLUDING THE CITY OF WAYNESBURG  
1234 PM EDT THU SEP 17 2026  
 
TONIGHT FRI FRI NIGHT SAT  
 
CLOUD COVER PCLDY PCLDY PCLDY PCLDY  
PRECIP TYPE TSTMS SHOWERS NONE NONE  
CHANCE PRECIP (%) 50 20 0 0  
CHANCE OF THUNDER (%) 20 0 0 0  
TEMP (24H TREND) 67 (-1) 77 (-6) 58 78  
RH % (24H TREND) 100 (0) 72 (-8) 100 66  
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR  
WIND 20FT/LATE(MPH) LGT/VAR N 5 LGT/VAR LGT/VAR  
PRECIP AMOUNT 0.11 0.01 0.00 0.00  
PRECIP DURATION 2 0  
PRECIP BEGIN 6 PM CONTINUING  
PRECIP END CONTINUING 8 AM  
MIXING HGT(M-AGL/MSL) 1140  
MIXING HGT(FT-AGL/MSL) 3730  
TRANSPORT WND (MPH) N 9 N/A  
VENT RATE (KT-FT) 29840  
CATEGORY DAY 3  
INVERSION 7PM 68F/9AM 8PM  
DISPERSION 3  
MAX ADI EARLY 6 VERY POOR 13 GEN POOR 5 VERY POOR 16 GEN POOR  
MAX ADI LATE 3 VERY POOR 35 FAIR 4 VERY POOR 30 FAIR  
MAX LVORI EARLY 9 9 8 8  
MAX LVORI LATE 9 5 9 3  
 
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 
 
 
PAZ073-180815-  
WESTMORELAND-  
INCLUDING THE CITIES OF MURRYSVILLE, GREENSBURG, NEW KENSINGTON,  
LOWER BURRELL, LATROBE, AND MONESSEN  
1234 PM EDT THU SEP 17 2026  
 
TONIGHT FRI FRI NIGHT SAT  
 
CLOUD COVER PCLDY PCLDY MCLEAR PCLDY  
PRECIP TYPE SHOWERS NONE NONE NONE  
CHANCE PRECIP (%) 30 0 0 0  
CHANCE OF THUNDER (%) 0 0 0 0  
TEMP (24H TREND) 66 (-2) 77 (-6) 56 77  
RH % (24H TREND) 100 (0) 64 (-17) 100 63  
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR NE 5 LGT/VAR  
WIND 20FT/LATE(MPH) LGT/VAR N 6 LGT/VAR LGT/VAR  
PRECIP AMOUNT 0.05 0.00 0.00 0.00  
PRECIP DURATION 1  
PRECIP BEGIN 6 PM  
PRECIP END 4 AM  
MIXING HGT(M-AGL/MSL) 1130  
MIXING HGT(FT-AGL/MSL) 3710  
TRANSPORT WND (MPH) N 9 N/A  
VENT RATE (KT-FT) 29680  
CATEGORY DAY 3  
INVERSION 6PM 68F/9AM 8PM  
DISPERSION 3  
MAX ADI EARLY 8 POOR 17 GEN POOR 4 VERY POOR 19 GEN POOR  
MAX ADI LATE 3 VERY POOR 37 FAIR 4 VERY POOR 24 FAIR  
MAX LVORI EARLY 9 9 9 7  
MAX LVORI LATE 9 4 9 3  
 
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 
 
 
PAZ074-180815-  
HIGHER ELEVATIONS OF WESTMORELAND-  
INCLUDING THE CITIES OF LIGONIER AND DONEGAL  
1234 PM EDT THU SEP 17 2026  
 
TONIGHT FRI FRI NIGHT SAT  
 
CLOUD COVER MCLDY PCLDY MCLEAR PCLDY  
PRECIP TYPE SHOWERS NONE NONE NONE  
CHANCE PRECIP (%) 30 0 0 0  
CHANCE OF THUNDER (%) 0 0 0 0  
TEMP (24H TREND) 65 (-2) 77 (-3) 56 76  
RH % (24H TREND) 100 (0) 63 (-17) 100 59  
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR  
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR SE 5  
PRECIP AMOUNT 0.03 0.00 0.00 0.00  
PRECIP DURATION 2  
PRECIP BEGIN 6 PM  
PRECIP END 4 AM  
MIXING HGT(M-AGL/MSL) 1200  
MIXING HGT(FT-AGL/MSL) 3940  
TRANSPORT WND (MPH) N 9 N/A  
VENT RATE (KT-FT) 31520  
CATEGORY DAY 3  
INVERSION 7PM 66F/9AM 8PM  
DISPERSION 3  
MAX ADI EARLY 8 POOR 15 GEN POOR 4 VERY POOR 21 FAIR  
MAX ADI LATE 4 VERY POOR 34 FAIR 5 VERY POOR 24 FAIR  
MAX LVORI EARLY 9 9 9 7  
MAX LVORI LATE 9 4 9 3  
 
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 
 
 
PAZ075-180815-  
FAYETTE-  
INCLUDING THE CITY OF UNIONTOWN  
1234 PM EDT THU SEP 17 2026  
 
TONIGHT FRI FRI NIGHT SAT  
 
CLOUD COVER PCLDY PCLDY MCLEAR PCLDY  
PRECIP TYPE TSTMS NONE NONE NONE  
CHANCE PRECIP (%) 40 0 0 0  
CHANCE OF THUNDER (%) 20 0 0 0  
TEMP (24H TREND) 67 (-1) 77 (-6) 59 78  
RH % (24H TREND) 100 (+1) 71 (-8) 100 64  
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR  
WIND 20FT/LATE(MPH) LGT/VAR N 5 LGT/VAR LGT/VAR  
PRECIP AMOUNT 0.08 0.00 0.00 0.00  
PRECIP DURATION 2  
PRECIP BEGIN 6 PM  
PRECIP END 6 AM  
MIXING HGT(M-AGL/MSL) 1100  
MIXING HGT(FT-AGL/MSL) 3600  
TRANSPORT WND (MPH) N 9 N/A  
VENT RATE (KT-FT) 28800  
CATEGORY DAY 3  
INVERSION 7PM 68F/9AM 8PM  
DISPERSION 3  
MAX ADI EARLY 6 VERY POOR 14 GEN POOR 4 VERY POOR 18 GEN POOR  
MAX ADI LATE 3 VERY POOR 36 FAIR 4 VERY POOR 28 FAIR  
MAX LVORI EARLY 9 9 9 6  
MAX LVORI LATE 9 4 9 3  
 
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 
 
 
PAZ076-180815-  
HIGHER ELEVATIONS OF FAYETTE-  
INCLUDING THE CITIES OF CHAMPION AND OHIOPYLE  
1234 PM EDT THU SEP 17 2026  
 
TONIGHT FRI FRI NIGHT SAT  
 
CLOUD COVER MCLDY PCLDY MCLEAR PCLDY  
PRECIP TYPE TSTMS NONE NONE NONE  
CHANCE PRECIP (%) 40 0 0 0  
CHANCE OF THUNDER (%) 20 0 0 0  
TEMP (24H TREND) 64 (-2) 76 (-4) 55 76  
RH % (24H TREND) 100 (0) 68 (-10) 100 62  
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR  
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR  
PRECIP AMOUNT 0.05 0.00 0.00 0.00  
PRECIP DURATION 2  
PRECIP BEGIN 6 PM  
PRECIP END 6 AM  
MIXING HGT(M-AGL/MSL) 1050  
MIXING HGT(FT-AGL/MSL) 3430  
TRANSPORT WND (MPH) N 9 N/A  
VENT RATE (KT-FT) 27440  
CATEGORY DAY 3  
INVERSION 7PM 66F/9AM 8PM  
DISPERSION 3  
MAX ADI EARLY 7 POOR 15 GEN POOR 4 VERY POOR 18 GEN POOR  
MAX ADI LATE 3 VERY POOR 33 FAIR 5 VERY POOR 29 FAIR  
MAX LVORI EARLY 9 9 9 7  
MAX LVORI LATE 9 4 9 3  
 
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 
 
 
PAZ077-180815-  
INDIANA-  
INCLUDING THE CITY OF INDIANA  
1234 PM EDT THU SEP 17 2026  
 
TONIGHT FRI FRI NIGHT SAT  
 
CLOUD COVER PCLDY PCLDY MCLEAR PCLDY  
PRECIP TYPE SHOWERS NONE NONE NONE  
CHANCE PRECIP (%) 40 0 0 0  
CHANCE OF THUNDER (%) 0 0 0 0  
TEMP (24H TREND) 62 (-5) 76 (-4) 52 75  
RH % (24H TREND) 100 (0) 58 (-25) 100 61  
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR E 5  
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR SE 5  
PRECIP AMOUNT 0.02 0.00 0.00 0.00  
PRECIP DURATION 1  
PRECIP BEGIN 6 PM  
PRECIP END 1 AM  
MIXING HGT(M-AGL/MSL) 1470  
MIXING HGT(FT-AGL/MSL) 4840  
TRANSPORT WND (MPH) N 9 N/A  
VENT RATE (KT-FT) 38720  
CATEGORY DAY 3  
INVERSION 7PM 66F/9AM 8PM  
DISPERSION 3  
MAX ADI EARLY 6 VERY POOR 22 FAIR 4 VERY POOR 21 FAIR  
MAX ADI LATE 3 VERY POOR 42 GEN GOOD 6 VERY POOR 26 FAIR  
MAX LVORI EARLY 9 9 9 6  
MAX LVORI LATE 9 3 9 3  
 
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 
 
 
PAZ078-180815-  
HIGHER ELEVATIONS OF INDIANA-  
INCLUDING THE CITY OF ARMAGH  
1234 PM EDT THU SEP 17 2026  
 
TONIGHT FRI FRI NIGHT SAT  
 
CLOUD COVER MCLDY PCLDY MCLEAR PCLDY  
PRECIP TYPE SHOWERS NONE NONE NONE  
CHANCE PRECIP (%) 50 0 0 0  
CHANCE OF THUNDER (%) 0 0 0 0  
TEMP (24H TREND) 64 (-3) 77 (-3) 53 74  
RH % (24H TREND) 100 (0) 61 (-22) 100 61  
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR E 5  
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR SE 5  
PRECIP AMOUNT 0.02 0.00 0.00 0.00  
PRECIP DURATION 1  
PRECIP BEGIN 6 PM  
PRECIP END 1 AM  
MIXING HGT(M-AGL/MSL) 1360  
MIXING HGT(FT-AGL/MSL) 4460  
TRANSPORT WND (MPH) N 9 N/A  
VENT RATE (KT-FT) 35680  
CATEGORY DAY 3  
INVERSION 6PM 66F/9AM 8PM  
DISPERSION 3  
MAX ADI EARLY 7 POOR 19 GEN POOR 4 VERY POOR 23 FAIR  
MAX ADI LATE 3 VERY POOR 40 FAIR 6 VERY POOR 29 FAIR  
MAX LVORI EARLY 9 9 9 6  
MAX LVORI LATE 9 3 9 3  
 
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 
 
 
WVZ001-180815-  
HANCOCK-  
INCLUDING THE CITY OF WEIRTON  
1234 PM EDT THU SEP 17 2026  
 
TONIGHT FRI FRI NIGHT SAT  
 
CLOUD COVER PCLDY PCLDY MCLEAR PCLDY  
PRECIP TYPE SHOWERS NONE NONE NONE  
CHANCE PRECIP (%) 20 0 0 0  
CHANCE OF THUNDER (%) 0 0 0 0  
TEMP (24H TREND) 65 (-4) 76 (-6) 57 76  
RH % (24H TREND) 100 (0) 60 (-18) 96 62  
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR N 5 LGT/VAR  
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR  
PRECIP AMOUNT 0.07 0.00 0.00 0.00  
PRECIP DURATION 1  
PRECIP BEGIN 6 PM  
PRECIP END 5 AM  
MIXING HGT(M-AGL/MSL) 1230  
MIXING HGT(FT-AGL/MSL) 4030  
TRANSPORT WND (MPH) N 9 N/A  
VENT RATE (KT-FT) 32240  
CATEGORY DAY 3  
INVERSION 7PM 67F/9AM 8PM  
DISPERSION 3  
MAX ADI EARLY 6 VERY POOR 25 FAIR 5 VERY POOR 17 GEN POOR  
MAX ADI LATE 4 VERY POOR 41 GEN GOOD 4 VERY POOR 24 FAIR  
MAX LVORI EARLY 10 9 6 6  
MAX LVORI LATE 10 3 8 3  
 
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 
 
 
WVZ002-180815-  
BROOKE-  
INCLUDING THE CITIES OF FOLLANSBEE AND WELLSBURG  
1234 PM EDT THU SEP 17 2026  
 
TONIGHT FRI FRI NIGHT SAT  
 
CLOUD COVER PCLDY PCLDY MCLEAR PCLDY  
PRECIP TYPE SHOWERS NONE NONE NONE  
CHANCE PRECIP (%) 20 0 0 0  
CHANCE OF THUNDER (%) 0 0 0 0  
TEMP (24H TREND) 66 (-3) 77 (-6) 57 78  
RH % (24H TREND) 100 (0) 63 (-15) 99 60  
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR  
WIND 20FT/LATE(MPH) LGT/VAR N 5 LGT/VAR LGT/VAR  
PRECIP AMOUNT 0.09 0.00 0.00 0.00  
PRECIP DURATION 1  
PRECIP BEGIN 6 PM  
PRECIP END 6 AM  
MIXING HGT(M-AGL/MSL) 1040  
MIXING HGT(FT-AGL/MSL) 3420  
TRANSPORT WND (MPH) NE 8 N/A  
VENT RATE (KT-FT) 23940  
CATEGORY DAY 3  
INVERSION 7PM 67F/9AM 8PM  
DISPERSION 3  
MAX ADI EARLY 5 VERY POOR 16 GEN POOR 4 VERY POOR 17 GEN POOR  
MAX ADI LATE 3 VERY POOR 38 FAIR 4 VERY POOR 27 FAIR  
MAX LVORI EARLY 10 8 6 7  
MAX LVORI LATE 10 3 9 3  
 
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 
 
 
WVZ003-180815-  
OHIO-  
INCLUDING THE CITY OF WHEELING  
1234 PM EDT THU SEP 17 2026  
 
TONIGHT FRI FRI NIGHT SAT  
 
CLOUD COVER PCLDY PCLDY MCLEAR PCLDY  
PRECIP TYPE TSTMS NONE NONE NONE  
CHANCE PRECIP (%) 30 0 0 0  
CHANCE OF THUNDER (%) 20 0 0 0  
TEMP (24H TREND) 67 (-2) 78 (-5) 58 79  
RH % (24H TREND) 100 (0) 67 (-13) 100 62  
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR  
WIND 20FT/LATE(MPH) LGT/VAR N 5 LGT/VAR LGT/VAR  
PRECIP AMOUNT 0.09 0.00 0.00 0.00  
PRECIP DURATION 1  
PRECIP BEGIN 6 PM  
PRECIP END 6 AM  
MIXING HGT(M-AGL/MSL) 1070  
MIXING HGT(FT-AGL/MSL) 3510  
TRANSPORT WND (MPH) N 8 N/A  
VENT RATE (KT-FT) 24570  
CATEGORY DAY 3  
INVERSION 7PM 68F/9AM 8PM  
DISPERSION 3  
MAX ADI EARLY 5 VERY POOR 15 GEN POOR 4 VERY POOR 16 GEN POOR  
MAX ADI LATE 3 VERY POOR 34 FAIR 4 VERY POOR 28 FAIR  
MAX LVORI EARLY 9 8 7 8  
MAX LVORI LATE 10 4 9 3  
 
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 
 
 
WVZ004-180815-  
MARSHALL-  
INCLUDING THE CITY OF MOUNDSVILLE  
1234 PM EDT THU SEP 17 2026  
 
TONIGHT FRI FRI NIGHT SAT  
 
CLOUD COVER PCLDY PCLDY MCLEAR PCLDY  
PRECIP TYPE TSTMS NONE NONE NONE  
CHANCE PRECIP (%) 50 0 0 0  
CHANCE OF THUNDER (%) 20 0 0 0  
TEMP (24H TREND) 67 (-3) 79 (-4) 59 80  
RH % (24H TREND) 100 (0) 72 (-9) 100 66  
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR  
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR  
PRECIP AMOUNT 0.12 0.00 0.00 0.00  
PRECIP DURATION 2  
PRECIP BEGIN 6 PM  
PRECIP END 6 AM  
MIXING HGT(M-AGL/MSL) 1140  
MIXING HGT(FT-AGL/MSL) 3750  
TRANSPORT WND (MPH) N 8 N/A  
VENT RATE (KT-FT) 26250  
CATEGORY DAY 3  
INVERSION 7PM 69F/9AM 8PM  
DISPERSION 3  
MAX ADI EARLY 5 VERY POOR 12 POOR 4 VERY POOR 13 GEN POOR  
MAX ADI LATE 3 VERY POOR 33 FAIR 4 VERY POOR 32 FAIR  
MAX LVORI EARLY 9 9 7 9  
MAX LVORI LATE 10 5 9 3  
 
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 
 
 
WVZ012-180815-  
WETZEL-  
INCLUDING THE CITY OF NEW MARTINSVILLE  
1234 PM EDT THU SEP 17 2026  
 
TONIGHT FRI FRI NIGHT SAT  
 
CLOUD COVER PCLDY PCLDY PCLDY PCLDY  
PRECIP TYPE TSTMS SHOWERS NONE NONE  
CHANCE PRECIP (%) 70 30 0 0  
CHANCE OF THUNDER (%) 20 0 0 0  
TEMP (24H TREND) 67 (-2) 78 (-5) 60 80  
RH % (24H TREND) 100 (0) 76 (-5) 100 68  
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR  
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR  
PRECIP AMOUNT 0.14 0.01 0.00 0.00  
PRECIP DURATION 3 0  
PRECIP BEGIN 6 PM CONTINUING  
PRECIP END CONTINUING 8 AM  
MIXING HGT(M-AGL/MSL) 1180  
MIXING HGT(FT-AGL/MSL) 3860  
TRANSPORT WND (MPH) N 9 N/A  
VENT RATE (KT-FT) 30880  
CATEGORY DAY 3  
INVERSION 7PM 69F/9AM 8PM  
DISPERSION 3  
MAX ADI EARLY 4 VERY POOR 13 GEN POOR 4 VERY POOR 11 POOR  
MAX ADI LATE 3 VERY POOR 24 FAIR 3 VERY POOR 34 FAIR  
MAX LVORI EARLY 9 9 8 9  
MAX LVORI LATE 10 5 9 4  
 
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 
 
 
WVZ021-180815-  
MARION-  
INCLUDING THE CITY OF FAIRMONT  
1234 PM EDT THU SEP 17 2026  
 
TONIGHT FRI FRI NIGHT SAT  
 
CLOUD COVER PCLDY PCLDY PCLDY PCLDY  
PRECIP TYPE TSTMS SHOWERS NONE NONE  
CHANCE PRECIP (%) 60 30 0 0  
CHANCE OF THUNDER (%) 20 0 0 0  
TEMP (24H TREND) 67 (0) 77 (-5) 60 79  
RH % (24H TREND) 100 (0) 78 (-5) 100 70  
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR  
WIND 20FT/LATE(MPH) LGT/VAR N 5 LGT/VAR LGT/VAR  
PRECIP AMOUNT 0.17 0.03 0.00 0.00  
PRECIP DURATION 3 1  
PRECIP BEGIN 6 PM CONTINUING  
PRECIP END CONTINUING 9 AM  
MIXING HGT(M-AGL/MSL) 1140  
MIXING HGT(FT-AGL/MSL) 3730  
TRANSPORT WND (MPH) N 9 N/A  
VENT RATE (KT-FT) 29840  
CATEGORY DAY 3  
INVERSION 6PM 69F/9AM 8PM  
DISPERSION 3  
MAX ADI EARLY 5 VERY POOR 13 GEN POOR 4 VERY POOR 15 GEN POOR  
MAX ADI LATE 3 VERY POOR 33 FAIR 3 VERY POOR 37 FAIR  
MAX LVORI EARLY 9 9 9 9  
MAX LVORI LATE 10 5 9 3  
 
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 
 
 
WVZ509-180815-  
MONONGALIA-  
INCLUDING THE CITY OF MORGANTOWN  
1234 PM EDT THU SEP 17 2026  
 
TONIGHT FRI FRI NIGHT SAT  
 
CLOUD COVER MCLDY PCLDY PCLDY PCLDY  
PRECIP TYPE TSTMS SHOWERS NONE NONE  
CHANCE PRECIP (%) 50 30 0 0  
CHANCE OF THUNDER (%) 20 0 0 0  
TEMP (24H TREND) 67 (-1) 77 (-5) 60 78  
RH % (24H TREND) 100 (+1) 75 (-7) 100 68  
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR  
WIND 20FT/LATE(MPH) LGT/VAR N 5 LGT/VAR LGT/VAR  
PRECIP AMOUNT 0.18 0.03 0.00 0.00  
PRECIP DURATION 2 0  
PRECIP BEGIN 6 PM CONTINUING  
PRECIP END CONTINUING 8 AM  
MIXING HGT(M-AGL/MSL) 1130  
MIXING HGT(FT-AGL/MSL) 3700  
TRANSPORT WND (MPH) N 9 N/A  
VENT RATE (KT-FT) 29600  
CATEGORY DAY 3  
INVERSION 7PM 69F/9AM 8PM  
DISPERSION 3  
MAX ADI EARLY 5 VERY POOR 13 GEN POOR 4 VERY POOR 16 GEN POOR  
MAX ADI LATE 3 VERY POOR 35 FAIR 3 VERY POOR 34 FAIR  
MAX LVORI EARLY 9 9 9 9  
MAX LVORI LATE 10 5 9 3  
 
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 
 
 
WVZ510-180815-  
RIDGES OF EASTERN MONONGALIA AND NORTHWESTERN PRESTON-  
INCLUDING THE CITY OF COOPERS ROCK  
1234 PM EDT THU SEP 17 2026  
 
TONIGHT FRI FRI NIGHT SAT  
 
CLOUD COVER MCLDY PCLDY MCLEAR PCLDY  
PRECIP TYPE TSTMS TSTMS NONE NONE  
CHANCE PRECIP (%) 50 20 0 0  
CHANCE OF THUNDER (%) 20 10 0 0  
TEMP (24H TREND) 65 (-1) 75 (-4) 57 75  
RH % (24H TREND) 100 (+1) 78 (-5) 100 70  
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR  
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR  
PRECIP AMOUNT 0.12 0.05 0.00 0.00  
PRECIP DURATION 2 0  
PRECIP BEGIN 6 PM CONTINUING  
PRECIP END CONTINUING 9 AM  
MIXING HGT(M-AGL/MSL) 1020  
MIXING HGT(FT-AGL/MSL) 3350  
TRANSPORT WND (MPH) N 9 N/A  
VENT RATE (KT-FT) 26800  
CATEGORY DAY 3  
INVERSION 7PM 67F/9AM 8PM  
DISPERSION 3  
MAX ADI EARLY 5 VERY POOR 13 GEN POOR 4 VERY POOR 15 GEN POOR  
MAX ADI LATE 3 VERY POOR 31 FAIR 5 VERY POOR 34 FAIR  
MAX LVORI EARLY 9 9 9 7  
MAX LVORI LATE 9 5 9 3  
 
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 
 
 
WVZ511-180815-  
PRESTON-  
INCLUDING THE CITIES OF KINGWOOD AND BRUCETON MILLS  
1234 PM EDT THU SEP 17 2026  
 
TONIGHT FRI FRI NIGHT SAT  
 
CLOUD COVER MCLDY PCLDY MCLEAR PCLDY  
PRECIP TYPE TSTMS SHOWERS NONE NONE  
CHANCE PRECIP (%) 50 30 0 0  
CHANCE OF THUNDER (%) 20 0 0 0  
TEMP (24H TREND) 66 (0) 76 (-5) 57 77  
RH % (24H TREND) 100 (0) 74 (-5) 100 66  
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR  
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR  
PRECIP AMOUNT 0.09 0.06 0.00 0.00  
PRECIP DURATION 2 0  
PRECIP BEGIN 6 PM CONTINUING  
PRECIP END CONTINUING 9 AM  
MIXING HGT(M-AGL/MSL) 1030  
MIXING HGT(FT-AGL/MSL) 3390  
TRANSPORT WND (MPH) N 9 N/A  
VENT RATE (KT-FT) 27120  
CATEGORY DAY 3  
INVERSION 7PM 70F/10AM 8PM  
DISPERSION 3  
MAX ADI EARLY 6 VERY POOR 14 GEN POOR 4 VERY POOR 16 GEN POOR  
MAX ADI LATE 3 VERY POOR 30 FAIR 4 VERY POOR 29 FAIR  
MAX LVORI EARLY 9 9 9 7  
MAX LVORI LATE 9 4 9 3  
 
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 
 
 
WVZ512-180815-  
EASTERN PRESTON-  
INCLUDING THE CITIES OF TERRA ALTA, ROWLESBURG, AND HAZELTON  
1234 PM EDT THU SEP 17 2026  
 
TONIGHT FRI FRI NIGHT SAT  
 
CLOUD COVER MCLDY PCLDY PCLDY PCLDY  
PRECIP TYPE TSTMS SHOWERS NONE NONE  
CHANCE PRECIP (%) 50 30 0 0  
CHANCE OF THUNDER (%) 20 0 0 0  
TEMP (24H TREND) 65 (-1) 76 (-3) 56 76  
RH % (24H TREND) 100 (+1) 78 (-5) 100 70  
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR  
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR  
PRECIP AMOUNT 0.07 0.05 0.00 0.00  
PRECIP DURATION 2 1  
PRECIP BEGIN 6 PM CONTINUING  
PRECIP END CONTINUING 6 PM  
MIXING HGT(M-AGL/MSL) 1040  
MIXING HGT(FT-AGL/MSL) 3420  
TRANSPORT WND (MPH) N 9 N/A  
VENT RATE (KT-FT) 27360  
CATEGORY DAY 3  
INVERSION 7PM 68F/10AM 8PM  
DISPERSION 3  
MAX ADI EARLY 7 POOR 16 GEN POOR 4 VERY POOR 16 GEN POOR  
MAX ADI LATE 3 VERY POOR 29 FAIR 6 VERY POOR 27 FAIR  
MAX LVORI EARLY 9 9 9 7  
MAX LVORI LATE 9 5 9 4  
 
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 
 
 
WVZ513-180815-  
WESTERN TUCKER-  
INCLUDING THE CITIES OF PARSONS, HENDRICKS, AND SAINT GEORGE  
1234 PM EDT THU SEP 17 2026  
 
TONIGHT FRI FRI NIGHT SAT  
 
CLOUD COVER MCLDY PCLDY PCLDY PCLDY  
PRECIP TYPE TSTMS SHOWERS SHOWERS SHOWERS  
CHANCE PRECIP (%) 60 50 20 30  
CHANCE OF THUNDER (%) 20 0 0 0  
TEMP (24H TREND) 66 (-1) 78 (-3) 59 78  
RH % (24H TREND) 100 (+3) 78 (+1) 100 69  
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR  
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR  
PRECIP AMOUNT 0.10 0.08 0.01 0.00  
PRECIP DURATION 3 1 0 1  
PRECIP BEGIN 6 PM CONTINUING CONTINUING 8 AM  
PRECIP END CONTINUING CONTINUING 8 PM CONTINUING  
MIXING HGT(M-AGL/MSL) 1050  
MIXING HGT(FT-AGL/MSL) 3440  
TRANSPORT WND (MPH) N 8 N/A  
VENT RATE (KT-FT) 24080  
CATEGORY DAY 3  
INVERSION 6PM 68F/10AM 8PM  
DISPERSION 3  
MAX ADI EARLY 5 VERY POOR 14 GEN POOR 3 VERY POOR 16 GEN POOR  
MAX ADI LATE 3 VERY POOR 24 FAIR 4 VERY POOR 25 FAIR  
MAX LVORI EARLY 9 9 10 9  
MAX LVORI LATE 9 5 9 3  
 
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 
 
 
WVZ514-180815-  
EASTERN TUCKER-  
INCLUDING THE CITIES OF DAVIS, THOMAS, AND CANAAN VALLEY  
1234 PM EDT THU SEP 17 2026  
 
TONIGHT FRI FRI NIGHT SAT  
 
CLOUD COVER MCLDY MCLDY PCLDY PCLDY  
PRECIP TYPE SHOWERS TSTMS SHOWERS SHOWERS  
CHANCE PRECIP (%) 50 40 30 20  
CHANCE OF THUNDER (%) 0 10 0 0  
TEMP (24H TREND) 61 (-1) 74 (-3) 55 72  
RH % (24H TREND) 100 (+2) 86 (+7) 100 79  
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR  
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR  
PRECIP AMOUNT 0.05 0.05 0.01 0.00  
PRECIP DURATION 2 2 1 0  
PRECIP BEGIN 6 PM CONTINUING CONTINUING 2 PM  
PRECIP END CONTINUING CONTINUING 2 AM CONTINUING  
MIXING HGT(M-AGL/MSL) 980  
MIXING HGT(FT-AGL/MSL) 3200  
TRANSPORT WND (MPH) N 8 N/A  
VENT RATE (KT-FT) 22400  
CATEGORY DAY 2  
INVERSION 7PM 67F/10AM 8PM  
DISPERSION 2  
MAX ADI EARLY 9 POOR 19 GEN POOR 4 VERY POOR 16 GEN POOR  
MAX ADI LATE 5 VERY POOR 23 FAIR 5 VERY POOR 28 FAIR  
MAX LVORI EARLY 8 8 9 8  
MAX LVORI LATE 9 5 9 4  
 
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 
 
   
FORECAST FOR DAYS 3 THROUGH 7  
   
SUNDAY  
SHOWERS AND A CHANCE OF THUNDERSTORMS. LOWS IN THE MID  
60S. HIGHS IN THE UPPER 70S. SOUTH WINDS AROUND 5 MPH.    
MONDAY  
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS AROUND 60.  
HIGHS IN THE LOWER 70S. NORTHEAST WINDS 5 TO 10 MPH.    
TUESDAY  
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN THE  
UPPER 50S. HIGHS IN THE LOWER 70S. EAST WINDS 10 TO 15 MPH.    
WEDNESDAY  
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN THE  
UPPER 50S. HIGHS IN THE LOWER 70S. SOUTHEAST WINDS 15 TO 20 MPH.    
THURSDAY  
MOSTLY CLOUDY. A CHANCE OF SHOWERS. LOWS IN THE UPPER  
50S. HIGHS IN THE MID 70S. EAST WINDS 10 TO 15 MPH.  
 
 
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