162  
FNUS51 KPBZ 201708  
FWFPBZ  
 
FIRE WEATHER PLANNING FORECAST  
NATIONAL WEATHER SERVICE PITTSBURGH PA  
108 PM EDT TUE OCT 20 2026  
   
DISCUSSION
 
 
SURFACE HIGH PRESSURE AND GENERAL RIDGING ALOFT RESULTS IN A  
PERSISTENCE TYPE FORECAST FEATURING NEAR TO ABOVE NORMAL HIGH  
TEMPERATURE, LARGER DIURNAL TEMPERATURE SWINGS, LIGHT WINDS AND  
AFTERNOON MINIMUM HUMIDITIES TOUCHING THE 30TH PERCENT RANGE.  
 
OHZ039-210830-  
TUSCARAWAS-  
INCLUDING THE CITIES OF NEW PHILADELPHIA AND DOVER  
108 PM EDT TUE OCT 20 2026  
 
TONIGHT WED WED NIGHT THU  
 
CLOUD COVER MCLEAR MCLEAR MCLEAR MCLEAR  
PRECIP TYPE NONE NONE NONE NONE  
CHANCE PRECIP (%) 0 0 0 0  
CHANCE OF THUNDER (%) 0 0 0 0  
TEMP (24H TREND) 39 (+3) 69 (+1) 38 65  
RH % (24H TREND) 92 (-2) 37 (-2) 97 48  
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  
PRECIP BEGIN  
PRECIP END  
MIXING HGT(M-AGL/MSL) 1020 1320  
MIXING HGT(FT-AGL/MSL) 3350 4330  
TRANSPORT WND (MPH) N 8 N 13  
VENT RATE (KT-FT) 25050 51240  
CATEGORY DAY 3 3  
INVERSION 6PM 60F/12PM 6PM 48F/10AM  
DISPERSION 5 5  
MAX ADI EARLY 4 VERY POOR 6 VERY POOR 3 VERY POOR 15 GEN POOR  
MAX ADI LATE 4 VERY POOR 24 FAIR 4 VERY POOR 53 GEN GOOD  
MAX LVORI EARLY 5 6 4 7  
MAX LVORI LATE 6 2 7 2  
 
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 

 
 
OHZ040-210830-  
CARROLL-  
INCLUDING THE CITIES OF CARROLLTON AND MALVERN  
108 PM EDT TUE OCT 20 2026  
 
TONIGHT WED WED NIGHT THU  
 
CLOUD COVER MCLEAR MCLEAR MCLEAR MCLEAR  
PRECIP TYPE NONE NONE NONE NONE  
CHANCE PRECIP (%) 0 0 0 0  
CHANCE OF THUNDER (%) 0 0 0 0  
TEMP (24H TREND) 38 (+2) 68 (0) 38 65  
RH % (24H TREND) 92 (-3) 36 (-4) 97 49  
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR  
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR N 5  
PRECIP AMOUNT 0.00 0.00 0.00 0.00  
PRECIP DURATION  
PRECIP BEGIN  
PRECIP END  
MIXING HGT(M-AGL/MSL) 970 1270  
MIXING HGT(FT-AGL/MSL) 3170 4180  
TRANSPORT WND (MPH) N 8 N 13  
VENT RATE (KT-FT) 22670 51590  
CATEGORY DAY 2 3  
INVERSION 6PM 56F/11AM 6PM 48F/10AM  
DISPERSION 5 5  
MAX ADI EARLY 4 VERY POOR 7 POOR 3 VERY POOR 17 GEN POOR  
MAX ADI LATE 4 VERY POOR 23 FAIR 4 VERY POOR 54 GEN GOOD  
MAX LVORI EARLY 4 6 3 7  
MAX LVORI LATE 6 2 8 2  
 
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 

 
 
OHZ041-210830-  
COLUMBIANA-  
INCLUDING THE CITIES OF EAST LIVERPOOL, SALEM, AND COLUMBIANA  
108 PM EDT TUE OCT 20 2026  
 
TONIGHT WED WED NIGHT THU  
 
CLOUD COVER MCLEAR MCLEAR MCLEAR MCLEAR  
PRECIP TYPE NONE NONE NONE NONE  
CHANCE PRECIP (%) 0 0 0 0  
CHANCE OF THUNDER (%) 0 0 0 0  
TEMP (24H TREND) 36 (-1) 67 (-1) 37 64  
RH % (24H TREND) 93 (-3) 35 (-6) 96 48  
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR  
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR N 5  
PRECIP AMOUNT 0.00 0.00 0.00 0.00  
PRECIP DURATION  
PRECIP BEGIN  
PRECIP END  
MIXING HGT(M-AGL/MSL) 930 1220  
MIXING HGT(FT-AGL/MSL) 3040 4000  
TRANSPORT WND (MPH) N 7 N 14  
VENT RATE (KT-FT) 18760 51340  
CATEGORY DAY 2 3  
INVERSION 6PM 60F/12PM 6PM 48F/10AM  
DISPERSION 5 5  
MAX ADI EARLY 4 VERY POOR 7 POOR 3 VERY POOR 19 GEN POOR  
MAX ADI LATE 4 VERY POOR 22 FAIR 4 VERY POOR 48 GEN GOOD  
MAX LVORI EARLY 4 6 3 7  
MAX LVORI LATE 6 2 7 2  
 
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 

 
 
OHZ048-210830-  
COSHOCTON-  
INCLUDING THE CITY OF COSHOCTON  
108 PM EDT TUE OCT 20 2026  
 
TONIGHT WED WED NIGHT THU  
 
CLOUD COVER MCLEAR MCLEAR MCLEAR MCLEAR  
PRECIP TYPE NONE NONE NONE NONE  
CHANCE PRECIP (%) 0 0 0 0  
CHANCE OF THUNDER (%) 0 0 0 0  
TEMP (24H TREND) 40 (+3) 69 (+1) 39 66  
RH % (24H TREND) 90 (-2) 40 (+1) 97 48  
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  
PRECIP BEGIN  
PRECIP END  
MIXING HGT(M-AGL/MSL) 1180 1340  
MIXING HGT(FT-AGL/MSL) 3870 4400  
TRANSPORT WND (MPH) N 7 N 12  
VENT RATE (KT-FT) 26710 49860  
CATEGORY DAY 2 3  
INVERSION 6PM 61F/12PM 6PM 49F/10AM  
DISPERSION 5 5  
MAX ADI EARLY 4 VERY POOR 6 VERY POOR 4 VERY POOR 15 GEN POOR  
MAX ADI LATE 4 VERY POOR 26 FAIR 3 VERY POOR 51 GEN GOOD  
MAX LVORI EARLY 5 6 4 6  
MAX LVORI LATE 6 2 7 2  
 
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 

 
 
OHZ049-210830-  
HARRISON-  
INCLUDING THE CITY OF CADIZ  
108 PM EDT TUE OCT 20 2026  
 
TONIGHT WED WED NIGHT THU  
 
CLOUD COVER MCLEAR MCLEAR MCLEAR MCLEAR  
PRECIP TYPE NONE NONE NONE NONE  
CHANCE PRECIP (%) 0 0 0 0  
CHANCE OF THUNDER (%) 0 0 0 0  
TEMP (24H TREND) 38 (+2) 68 (0) 37 64  
RH % (24H TREND) 92 (+2) 36 (-3) 98 48  
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  
PRECIP BEGIN  
PRECIP END  
MIXING HGT(M-AGL/MSL) 1010 1230  
MIXING HGT(FT-AGL/MSL) 3300 4020  
TRANSPORT WND (MPH) N 7 N 12  
VENT RATE (KT-FT) 23540 45590  
CATEGORY DAY 2 3  
INVERSION 6PM 57F/11AM 6PM 48F/10AM  
DISPERSION 5 5  
MAX ADI EARLY 4 VERY POOR 7 POOR 3 VERY POOR 15 GEN POOR  
MAX ADI LATE 4 VERY POOR 24 FAIR 4 VERY POOR 50 GEN GOOD  
MAX LVORI EARLY 5 6 3 8  
MAX LVORI LATE 6 2 8 2  
 
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 

 
 
OHZ050-210830-  
JEFFERSON OH-  
INCLUDING THE CITY OF STEUBENVILLE  
108 PM EDT TUE OCT 20 2026  
 
TONIGHT WED WED NIGHT THU  
 
CLOUD COVER CLEAR MCLEAR MCLEAR MCLEAR  
PRECIP TYPE NONE NONE NONE NONE  
CHANCE PRECIP (%) 0 0 0 0  
CHANCE OF THUNDER (%) 0 0 0 0  
TEMP (24H TREND) 37 (0) 68 (0) 37 64  
RH % (24H TREND) 94 (-3) 35 (-4) 98 47  
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  
PRECIP BEGIN  
PRECIP END  
MIXING HGT(M-AGL/MSL) 990 1160  
MIXING HGT(FT-AGL/MSL) 3260 3810  
TRANSPORT WND (MPH) N 7 N 13  
VENT RATE (KT-FT) 23170 46520  
CATEGORY DAY 2 3  
INVERSION 6PM 56F/11AM 6PM 47F/10AM  
DISPERSION 5 5  
MAX ADI EARLY 4 VERY POOR 7 POOR 3 VERY POOR 18 GEN POOR  
MAX ADI LATE 4 VERY POOR 22 FAIR 4 VERY POOR 48 GEN GOOD  
MAX LVORI EARLY 4 6 3 7  
MAX LVORI LATE 6 2 8 2  
 
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 

 
 
OHZ057-210830-  
MUSKINGUM-  
INCLUDING THE CITY OF ZANESVILLE  
108 PM EDT TUE OCT 20 2026  
 
TONIGHT WED WED NIGHT THU  
 
CLOUD COVER MCLEAR MCLEAR MCLEAR MCLEAR  
PRECIP TYPE NONE NONE NONE NONE  
CHANCE PRECIP (%) 0 0 0 0  
CHANCE OF THUNDER (%) 0 0 0 0  
TEMP (24H TREND) 41 (+4) 69 (+1) 39 65  
RH % (24H TREND) 90 (-6) 40 (+1) 97 46  
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  
PRECIP BEGIN  
PRECIP END  
MIXING HGT(M-AGL/MSL) 1110 1320  
MIXING HGT(FT-AGL/MSL) 3640 4340  
TRANSPORT WND (MPH) N 7 N 12  
VENT RATE (KT-FT) 25060 45650  
CATEGORY DAY 2 3  
INVERSION 6PM 61F/12PM 6PM 55F/11AM  
DISPERSION 5 5  
MAX ADI EARLY 4 VERY POOR 6 VERY POOR 3 VERY POOR 10 POOR  
MAX ADI LATE 3 VERY POOR 25 FAIR 3 VERY POOR 43 GEN GOOD  
MAX LVORI EARLY 5 6 4 6  
MAX LVORI LATE 6 2 7 2  
 
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 

 
 
OHZ058-210830-  
GUERNSEY-  
INCLUDING THE CITY OF CAMBRIDGE  
108 PM EDT TUE OCT 20 2026  
 
TONIGHT WED WED NIGHT THU  
 
CLOUD COVER MCLEAR MCLEAR MCLEAR MCLEAR  
PRECIP TYPE NONE NONE NONE NONE  
CHANCE PRECIP (%) 0 0 0 0  
CHANCE OF THUNDER (%) 0 0 0 0  
TEMP (24H TREND) 40 (+3) 69 (0) 38 65  
RH % (24H TREND) 91 (-1) 37 (-1) 98 45  
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  
PRECIP BEGIN  
PRECIP END  
MIXING HGT(M-AGL/MSL) 1090 1270  
MIXING HGT(FT-AGL/MSL) 3590 4150  
TRANSPORT WND (MPH) N 8 N 12  
VENT RATE (KT-FT) 25790 44480  
CATEGORY DAY 3 3  
INVERSION 6PM 61F/12PM 6PM 48F/10AM  
DISPERSION 5 5  
MAX ADI EARLY 4 VERY POOR 7 POOR 3 VERY POOR 12 POOR  
MAX ADI LATE 3 VERY POOR 25 FAIR 3 VERY POOR 44 GEN GOOD  
MAX LVORI EARLY 5 6 4 7  
MAX LVORI LATE 6 2 8 2  
 
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 

 
 
OHZ059-210830-  
BELMONT-  
INCLUDING THE CITIES OF MARTINS FERRY AND ST. CLAIRSVILLE  
108 PM EDT TUE OCT 20 2026  
 
TONIGHT WED WED NIGHT THU  
 
CLOUD COVER CLEAR MCLEAR MCLEAR MCLEAR  
PRECIP TYPE NONE NONE NONE NONE  
CHANCE PRECIP (%) 0 0 0 0  
CHANCE OF THUNDER (%) 0 0 0 0  
TEMP (24H TREND) 39 (+2) 69 (+1) 37 65  
RH % (24H TREND) 91 (-6) 36 (-3) 97 45  
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  
PRECIP BEGIN  
PRECIP END  
MIXING HGT(M-AGL/MSL) 1010 1180  
MIXING HGT(FT-AGL/MSL) 3330 3880  
TRANSPORT WND (MPH) N 7 N 13  
VENT RATE (KT-FT) 23540 42010  
CATEGORY DAY 2 3  
INVERSION 6PM 61F/12PM 6PM 48F/10AM  
DISPERSION 5 5  
MAX ADI EARLY 4 VERY POOR 7 POOR 3 VERY POOR 14 GEN POOR  
MAX ADI LATE 4 VERY POOR 24 FAIR 3 VERY POOR 45 GEN GOOD  
MAX LVORI EARLY 5 6 3 6  
MAX LVORI LATE 6 2 7 2  
 
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 

 
 
OHZ068-210830-  
NOBLE-  
INCLUDING THE CITY OF CALDWELL  
108 PM EDT TUE OCT 20 2026  
 
TONIGHT WED WED NIGHT THU  
 
CLOUD COVER CLEAR MCLEAR MCLEAR MCLEAR  
PRECIP TYPE NONE NONE NONE NONE  
CHANCE PRECIP (%) 0 0 0 0  
CHANCE OF THUNDER (%) 0 0 0 0  
TEMP (24H TREND) 41 (+3) 69 (+1) 39 64  
RH % (24H TREND) 89 (-7) 38 (-1) 98 45  
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  
PRECIP BEGIN  
PRECIP END  
MIXING HGT(M-AGL/MSL) 1050 1200  
MIXING HGT(FT-AGL/MSL) 3440 3940  
TRANSPORT WND (MPH) N 8 N 10  
VENT RATE (KT-FT) 24510 41810  
CATEGORY DAY 3 3  
INVERSION 6PM 58F/11AM 6PM 49F/10AM  
DISPERSION 5 5  
MAX ADI EARLY 3 VERY POOR 7 POOR 3 VERY POOR 14 GEN POOR  
MAX ADI LATE 4 VERY POOR 24 FAIR 3 VERY POOR 40 FAIR  
MAX LVORI EARLY 5 6 4 6  
MAX LVORI LATE 6 2 8 2  
 
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 

 
 
OHZ069-210830-  
MONROE-  
INCLUDING THE CITY OF WOODSFIELD  
108 PM EDT TUE OCT 20 2026  
 
TONIGHT WED WED NIGHT THU  
 
CLOUD COVER CLEAR MCLEAR MCLEAR MCLEAR  
PRECIP TYPE NONE NONE NONE NONE  
CHANCE PRECIP (%) 0 0 0 0  
CHANCE OF THUNDER (%) 0 0 0 0  
TEMP (24H TREND) 40 (+2) 70 (+1) 38 65  
RH % (24H TREND) 91 (-3) 37 (-1) 97 44  
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  
PRECIP BEGIN  
PRECIP END  
MIXING HGT(M-AGL/MSL) 1050 1180  
MIXING HGT(FT-AGL/MSL) 3430 3880  
TRANSPORT WND (MPH) N 8 N 12  
VENT RATE (KT-FT) 24460 40210  
CATEGORY DAY 3 3  
INVERSION 6PM 58F/11AM 6PM 48F/10AM  
DISPERSION 5 5  
MAX ADI EARLY 4 VERY POOR 7 POOR 3 VERY POOR 15 GEN POOR  
MAX ADI LATE 4 VERY POOR 24 FAIR 3 VERY POOR 41 GEN GOOD  
MAX LVORI EARLY 5 5 4 7  
MAX LVORI LATE 6 2 7 2  
 
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 

 
 
PAZ007-210830-  
MERCER-  
INCLUDING THE CITIES OF SHARON, HERMITAGE, AND GROVE CITY  
108 PM EDT TUE OCT 20 2026  
 
TONIGHT WED WED NIGHT THU  
 
CLOUD COVER CLEAR CLEAR MCLEAR MCLEAR  
PRECIP TYPE NONE NONE NONE NONE  
CHANCE PRECIP (%) 0 0 0 0  
CHANCE OF THUNDER (%) 0 0 0 0  
TEMP (24H TREND) 34 (-3) 68 (-1) 36 64  
RH % (24H TREND) 92 (-6) 32 (-9) 99 49  
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR  
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR N 8  
PRECIP AMOUNT 0.00 0.00 0.00 0.00  
PRECIP DURATION  
PRECIP BEGIN  
PRECIP END  
MIXING HGT(M-AGL/MSL) 940 1210  
MIXING HGT(FT-AGL/MSL) 3070 3970  
TRANSPORT WND (MPH) N 7 N 15  
VENT RATE (KT-FT) 18910 52920  
CATEGORY DAY 2 4  
INVERSION 6PM 55F/11AM 6PM 48F/10AM  
DISPERSION 5 5  
MAX ADI EARLY 5 VERY POOR 8 POOR 4 VERY POOR 22 FAIR  
MAX ADI LATE 5 VERY POOR 22 FAIR 4 VERY POOR 48 GEN GOOD  
MAX LVORI EARLY 5 5 4 7  
MAX LVORI LATE 5 2 8 1  
 
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 

 
 
PAZ008-210830-  
VENANGO-  
INCLUDING THE CITIES OF OIL CITY AND FRANKLIN  
108 PM EDT TUE OCT 20 2026  
 
TONIGHT WED WED NIGHT THU  
 
CLOUD COVER CLEAR CLEAR MCLEAR MCLEAR  
PRECIP TYPE NONE NONE NONE NONE  
CHANCE PRECIP (%) 0 0 0 0  
CHANCE OF THUNDER (%) 0 0 0 0  
TEMP (24H TREND) 33 (-3) 67 (-1) 36 63  
RH % (24H TREND) 96 (+1) 32 (-9) 99 48  
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR  
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR N 6  
PRECIP AMOUNT 0.00 0.00 0.00 0.00  
PRECIP DURATION  
PRECIP BEGIN  
PRECIP END  
MIXING HGT(M-AGL/MSL) 920 1160  
MIXING HGT(FT-AGL/MSL) 3010 3800  
TRANSPORT WND (MPH) N 6 N 15  
VENT RATE (KT-FT) 18440 50790  
CATEGORY DAY 2 4  
INVERSION 6PM 54F/11AM 6PM 47F/10AM  
DISPERSION 5 5  
MAX ADI EARLY 5 VERY POOR 7 POOR 4 VERY POOR 25 FAIR  
MAX ADI LATE 4 VERY POOR 22 FAIR 4 VERY POOR 56 GEN GOOD  
MAX LVORI EARLY 4 6 4 7  
MAX LVORI LATE 6 2 9 1  
 
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 

 
 
PAZ009-210830-  
FOREST-  
INCLUDING THE CITY OF TIONESTA  
108 PM EDT TUE OCT 20 2026  
 
TONIGHT WED WED NIGHT THU  
 
CLOUD COVER CLEAR MCLEAR MCLEAR MCLEAR  
PRECIP TYPE NONE NONE NONE NONE  
CHANCE PRECIP (%) 0 0 0 0  
CHANCE OF THUNDER (%) 0 0 0 0  
TEMP (24H TREND) 31 (-4) 67 (0) 33 62  
RH % (24H TREND) 100 (+6) 30 (-8) 100 47  
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR  
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR N 5  
PRECIP AMOUNT 0.00 0.00 0.00 0.00  
PRECIP DURATION  
PRECIP BEGIN  
PRECIP END  
MIXING HGT(M-AGL/MSL) 930 1170  
MIXING HGT(FT-AGL/MSL) 3070 3820  
TRANSPORT WND (MPH) N 6 N 16  
VENT RATE (KT-FT) 18920 55850  
CATEGORY DAY 2 4  
INVERSION 6PM 54F/11AM 6PM 46F/10AM  
DISPERSION 5 5  
MAX ADI EARLY 5 VERY POOR 8 POOR 4 VERY POOR 30 FAIR  
MAX ADI LATE 4 VERY POOR 23 FAIR 4 VERY POOR 69 GOOD  
MAX LVORI EARLY 4 8 3 8  
MAX LVORI LATE 6 2 9 1  
 
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 

 
 
PAZ013-210830-  
LAWRENCE-  
INCLUDING THE CITIES OF NEW CASTLE AND ELLWOOD CITY  
108 PM EDT TUE OCT 20 2026  
 
TONIGHT WED WED NIGHT THU  
 
CLOUD COVER CLEAR CLEAR MCLEAR MCLEAR  
PRECIP TYPE NONE NONE NONE NONE  
CHANCE PRECIP (%) 0 0 0 0  
CHANCE OF THUNDER (%) 0 0 0 0  
TEMP (24H TREND) 34 (-2) 68 (-1) 35 65  
RH % (24H TREND) 93 (-3) 32 (-7) 99 47  
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR  
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR N 6  
PRECIP AMOUNT 0.00 0.00 0.00 0.00  
PRECIP DURATION  
PRECIP BEGIN  
PRECIP END  
MIXING HGT(M-AGL/MSL) 920 1180  
MIXING HGT(FT-AGL/MSL) 3020 3880  
TRANSPORT WND (MPH) N 7 N 15  
VENT RATE (KT-FT) 18440 53100  
CATEGORY DAY 2 4  
INVERSION 6PM 56F/11AM 6PM 47F/10AM  
DISPERSION 5 5  
MAX ADI EARLY 4 VERY POOR 8 POOR 4 VERY POOR 18 GEN POOR  
MAX ADI LATE 4 VERY POOR 22 FAIR 4 VERY POOR 46 GEN GOOD  
MAX LVORI EARLY 5 6 3 9  
MAX LVORI LATE 6 2 9 2  
 
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 

 
 
PAZ014-210830-  
BUTLER-  
INCLUDING THE CITY OF BUTLER  
108 PM EDT TUE OCT 20 2026  
 
TONIGHT WED WED NIGHT THU  
 
CLOUD COVER CLEAR CLEAR MCLEAR MCLEAR  
PRECIP TYPE NONE NONE NONE NONE  
CHANCE PRECIP (%) 0 0 0 0  
CHANCE OF THUNDER (%) 0 0 0 0  
TEMP (24H TREND) 34 (-2) 67 (-1) 34 64  
RH % (24H TREND) 96 (+4) 33 (-8) 100 49  
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR  
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR N 5  
PRECIP AMOUNT 0.00 0.00 0.00 0.00  
PRECIP DURATION  
PRECIP BEGIN  
PRECIP END  
MIXING HGT(M-AGL/MSL) 940 1200  
MIXING HGT(FT-AGL/MSL) 3080 3930  
TRANSPORT WND (MPH) N 7 N 15  
VENT RATE (KT-FT) 18920 52510  
CATEGORY DAY 2 4  
INVERSION 6PM 54F/11AM 6PM 46F/10AM  
DISPERSION 5 5  
MAX ADI EARLY 5 VERY POOR 8 POOR 3 VERY POOR 19 GEN POOR  
MAX ADI LATE 5 VERY POOR 22 FAIR 4 VERY POOR 51 GEN GOOD  
MAX LVORI EARLY 5 6 4 8  
MAX LVORI LATE 6 2 9 1  
 
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 

 
 
PAZ015-210830-  
CLARION-  
INCLUDING THE CITY OF CLARION  
108 PM EDT TUE OCT 20 2026  
 
TONIGHT WED WED NIGHT THU  
 
CLOUD COVER CLEAR CLEAR MCLEAR MCLEAR  
PRECIP TYPE NONE NONE NONE NONE  
CHANCE PRECIP (%) 0 0 0 0  
CHANCE OF THUNDER (%) 0 0 0 0  
TEMP (24H TREND) 32 (-3) 67 (-1) 34 63  
RH % (24H TREND) 98 (+4) 33 (-8) 100 47  
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR  
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR N 5  
PRECIP AMOUNT 0.00 0.00 0.00 0.00  
PRECIP DURATION  
PRECIP BEGIN  
PRECIP END  
MIXING HGT(M-AGL/MSL) 900 1220  
MIXING HGT(FT-AGL/MSL) 2940 4010  
TRANSPORT WND (MPH) N 7 N 15  
VENT RATE (KT-FT) 18010 55440  
CATEGORY DAY 2 4  
INVERSION 6PM 53F/11AM 6PM 45F/10AM  
DISPERSION 5 5  
MAX ADI EARLY 5 VERY POOR 8 POOR 3 VERY POOR 24 FAIR  
MAX ADI LATE 5 VERY POOR 22 FAIR 4 VERY POOR 59 GEN GOOD  
MAX LVORI EARLY 4 7 3 8  
MAX LVORI LATE 6 2 8 1  
 
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 

 
 
PAZ016-210830-  
JEFFERSON PA-  
INCLUDING THE CITIES OF PUNXSUTAWNEY AND BROOKVILLE  
108 PM EDT TUE OCT 20 2026  
 
TONIGHT WED WED NIGHT THU  
 
CLOUD COVER CLEAR MCLEAR CLEAR MCLEAR  
PRECIP TYPE NONE NONE NONE NONE  
CHANCE PRECIP (%) 0 0 0 0  
CHANCE OF THUNDER (%) 0 0 0 0  
TEMP (24H TREND) 32 (-4) 66 (-1) 33 62  
RH % (24H TREND) 99 (+14) 32 (-9) 100 47  
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR  
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR NW 6  
PRECIP AMOUNT 0.00 0.00 0.00 0.00  
PRECIP DURATION  
PRECIP BEGIN  
PRECIP END  
MIXING HGT(M-AGL/MSL) 910 1220  
MIXING HGT(FT-AGL/MSL) 3000 4010  
TRANSPORT WND (MPH) N 7 N 15  
VENT RATE (KT-FT) 19110 61370  
CATEGORY DAY 2 4  
INVERSION 6PM 53F/11AM 6PM 45F/10AM  
DISPERSION 5 5  
MAX ADI EARLY 5 VERY POOR 8 POOR 4 VERY POOR 28 FAIR  
MAX ADI LATE 4 VERY POOR 22 FAIR 4 VERY POOR 66 GOOD  
MAX LVORI EARLY 4 7 3 8  
MAX LVORI LATE 6 2 8 1  
 
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 

 
 
PAZ020-210830-  
BEAVER-  
INCLUDING THE CITIES OF ALIQUIPPA, BEAVER FALLS, AMBRIDGE,  
AND MONACA  
108 PM EDT TUE OCT 20 2026  
 
TONIGHT WED WED NIGHT THU  
 
CLOUD COVER CLEAR CLEAR MCLEAR MCLEAR  
PRECIP TYPE NONE NONE NONE NONE  
CHANCE PRECIP (%) 0 0 0 0  
CHANCE OF THUNDER (%) 0 0 0 0  
TEMP (24H TREND) 36 (-1) 68 (0) 36 64  
RH % (24H TREND) 92 (-2) 34 (-6) 99 48  
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR  
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR N 5  
PRECIP AMOUNT 0.00 0.00 0.00 0.00  
PRECIP DURATION  
PRECIP BEGIN  
PRECIP END  
MIXING HGT(M-AGL/MSL) 910 1180  
MIXING HGT(FT-AGL/MSL) 2970 3860  
TRANSPORT WND (MPH) N 7 N 14  
VENT RATE (KT-FT) 18440 48720  
CATEGORY DAY 2 3  
INVERSION 6PM 55F/11AM 6PM 47F/10AM  
DISPERSION 5 5  
MAX ADI EARLY 4 VERY POOR 7 POOR 3 VERY POOR 16 GEN POOR  
MAX ADI LATE 4 VERY POOR 22 FAIR 4 VERY POOR 47 GEN GOOD  
MAX LVORI EARLY 4 6 3 8  
MAX LVORI LATE 6 2 8 2  
 
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 

 
 
PAZ021-210830-  
ALLEGHENY-  
INCLUDING THE CITY OF PITTSBURGH METRO AREA  
108 PM EDT TUE OCT 20 2026  
 
TONIGHT WED WED NIGHT THU  
 
CLOUD COVER CLEAR CLEAR MCLEAR MCLEAR  
PRECIP TYPE NONE NONE NONE NONE  
CHANCE PRECIP (%) 0 0 0 0  
CHANCE OF THUNDER (%) 0 0 0 0  
TEMP (24H TREND) 36 (0) 67 (-1) 36 64  
RH % (24H TREND) 92 (-2) 35 (-5) 98 48  
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR  
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR NW 5  
PRECIP AMOUNT 0.00 0.00 0.00 0.00  
PRECIP DURATION  
PRECIP BEGIN  
PRECIP END  
MIXING HGT(M-AGL/MSL) 950 1140  
MIXING HGT(FT-AGL/MSL) 3100 3730  
TRANSPORT WND (MPH) N 7 N 13  
VENT RATE (KT-FT) 22300 46530  
CATEGORY DAY 2 3  
INVERSION 6PM 55F/11AM 6PM 46F/10AM  
DISPERSION 5 5  
MAX ADI EARLY 4 VERY POOR 7 POOR 3 VERY POOR 12 POOR  
MAX ADI LATE 4 VERY POOR 22 FAIR 3 VERY POOR 45 GEN GOOD  
MAX LVORI EARLY 4 6 3 7  
MAX LVORI LATE 5 2 7 2  
 
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 

 
 
PAZ022-210830-  
ARMSTRONG-  
INCLUDING THE CITIES OF KITTANNING AND FORD CITY  
108 PM EDT TUE OCT 20 2026  
 
TONIGHT WED WED NIGHT THU  
 
CLOUD COVER CLEAR CLEAR MCLEAR MCLEAR  
PRECIP TYPE NONE NONE NONE NONE  
CHANCE PRECIP (%) 0 0 0 0  
CHANCE OF THUNDER (%) 0 0 0 0  
TEMP (24H TREND) 34 (-1) 67 (-1) 33 63  
RH % (24H TREND) 95 (0) 36 (-7) 100 49  
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR  
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR NW 5  
PRECIP AMOUNT 0.00 0.00 0.00 0.00  
PRECIP DURATION  
PRECIP BEGIN  
PRECIP END  
MIXING HGT(M-AGL/MSL) 950 1240  
MIXING HGT(FT-AGL/MSL) 3130 4060  
TRANSPORT WND (MPH) N 7 N 14  
VENT RATE (KT-FT) 21930 53180  
CATEGORY DAY 2 3  
INVERSION 6PM 54F/11AM 6PM 45F/10AM  
DISPERSION 5 5  
MAX ADI EARLY 4 VERY POOR 8 POOR 3 VERY POOR 16 GEN POOR  
MAX ADI LATE 4 VERY POOR 22 FAIR 3 VERY POOR 54 GEN GOOD  
MAX LVORI EARLY 5 6 4 9  
MAX LVORI LATE 6 2 9 1  
 
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 

 
 
PAZ029-210830-  
WASHINGTON-  
INCLUDING THE CITIES OF WASHINGTON AND CANONSBURG  
108 PM EDT TUE OCT 20 2026  
 
TONIGHT WED WED NIGHT THU  
 
CLOUD COVER MCLEAR MCLEAR MCLEAR MCLEAR  
PRECIP TYPE NONE NONE NONE NONE  
CHANCE PRECIP (%) 0 0 0 0  
CHANCE OF THUNDER (%) 0 0 0 0  
TEMP (24H TREND) 36 (+1) 67 (0) 35 63  
RH % (24H TREND) 93 (0) 36 (-4) 97 48  
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR  
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR N 5  
PRECIP AMOUNT 0.00 0.00 0.00 0.00  
PRECIP DURATION  
PRECIP BEGIN  
PRECIP END  
MIXING HGT(M-AGL/MSL) 950 1110  
MIXING HGT(FT-AGL/MSL) 3110 3630  
TRANSPORT WND (MPH) N 7 N 13  
VENT RATE (KT-FT) 21890 45540  
CATEGORY DAY 2 3  
INVERSION 6PM 55F/11AM 6PM 46F/10AM  
DISPERSION 5 5  
MAX ADI EARLY 4 VERY POOR 6 VERY POOR 3 VERY POOR 12 POOR  
MAX ADI LATE 4 VERY POOR 21 FAIR 3 VERY POOR 40 FAIR  
MAX LVORI EARLY 5 6 3 7  
MAX LVORI LATE 6 2 6 2  
 
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 

 
 
PAZ031-210830-  
GREENE-  
INCLUDING THE CITY OF WAYNESBURG  
108 PM EDT TUE OCT 20 2026  
 
TONIGHT WED WED NIGHT THU  
 
CLOUD COVER MCLEAR MCLEAR MCLEAR MCLEAR  
PRECIP TYPE NONE NONE NONE NONE  
CHANCE PRECIP (%) 0 0 0 0  
CHANCE OF THUNDER (%) 0 0 0 0  
TEMP (24H TREND) 36 (+1) 67 (0) 36 62  
RH % (24H TREND) 90 (+1) 36 (-3) 95 48  
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  
PRECIP BEGIN  
PRECIP END  
MIXING HGT(M-AGL/MSL) 970 1200  
MIXING HGT(FT-AGL/MSL) 3190 3940  
TRANSPORT WND (MPH) N 8 N 13  
VENT RATE (KT-FT) 23170 46230  
CATEGORY DAY 2 3  
INVERSION 6PM 59F/12PM 6PM 45F/10AM  
DISPERSION 5 5  
MAX ADI EARLY 4 VERY POOR 5 VERY POOR 3 VERY POOR 12 POOR  
MAX ADI LATE 3 VERY POOR 22 FAIR 3 VERY POOR 41 GEN GOOD  
MAX LVORI EARLY 5 6 3 6  
MAX LVORI LATE 6 2 6 2  
 
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 

 
 
PAZ073-210830-  
WESTMORELAND-  
INCLUDING THE CITIES OF MURRYSVILLE, GREENSBURG, NEW KENSINGTON,  
LOWER BURRELL, LATROBE, AND MONESSEN  
108 PM EDT TUE OCT 20 2026  
 
TONIGHT WED WED NIGHT THU  
 
CLOUD COVER CLEAR MCLEAR MCLEAR MCLEAR  
PRECIP TYPE NONE NONE NONE NONE  
CHANCE PRECIP (%) 0 0 0 0  
CHANCE OF THUNDER (%) 0 0 0 0  
TEMP (24H TREND) 35 (+1) 67 (-1) 34 63  
RH % (24H TREND) 92 (-4) 37 (-7) 99 49  
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  
PRECIP BEGIN  
PRECIP END  
MIXING HGT(M-AGL/MSL) 960 1030  
MIXING HGT(FT-AGL/MSL) 3170 3370  
TRANSPORT WND (MPH) N 6 N 12  
VENT RATE (KT-FT) 22060 47260  
CATEGORY DAY 2 3  
INVERSION 6PM 56F/11AM 6PM 50F/11AM  
DISPERSION 5 5  
MAX ADI EARLY 4 VERY POOR 6 VERY POOR 2 VERY POOR 13 GEN POOR  
MAX ADI LATE 4 VERY POOR 21 FAIR 2 VERY POOR 41 GEN GOOD  
MAX LVORI EARLY 5 6 3 9  
MAX LVORI LATE 6 2 8 2  
 
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 

 
 
PAZ074-210830-  
HIGHER ELEVATIONS OF WESTMORELAND-  
INCLUDING THE CITIES OF LIGONIER AND DONEGAL  
108 PM EDT TUE OCT 20 2026  
 
TONIGHT WED WED NIGHT THU  
 
CLOUD COVER CLEAR CLEAR MCLEAR MCLEAR  
PRECIP TYPE NONE NONE NONE NONE  
CHANCE PRECIP (%) 0 0 0 0  
CHANCE OF THUNDER (%) 0 0 0 0  
TEMP (24H TREND) 35 (-3) 67 (+1) 35 61  
RH % (24H TREND) 93 (+12) 33 (-9) 100 48  
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR  
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR NW 5  
PRECIP AMOUNT 0.00 0.00 0.00 0.00  
PRECIP DURATION  
PRECIP BEGIN  
PRECIP END  
MIXING HGT(M-AGL/MSL) 1030 960  
MIXING HGT(FT-AGL/MSL) 3370 3150  
TRANSPORT WND (MPH) N 7 NW 13  
VENT RATE (KT-FT) 24270 40690  
CATEGORY DAY 2 3  
INVERSION 6PM 55F/11AM 6PM 43F/10AM  
DISPERSION 5 5  
MAX ADI EARLY 4 VERY POOR 7 POOR 3 VERY POOR 18 GEN POOR  
MAX ADI LATE 4 VERY POOR 22 FAIR 3 VERY POOR 44 GEN GOOD  
MAX LVORI EARLY 4 6 3 9  
MAX LVORI LATE 5 2 7 2  
 
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 

 
 
PAZ075-210830-  
FAYETTE-  
INCLUDING THE CITY OF UNIONTOWN  
108 PM EDT TUE OCT 20 2026  
 
TONIGHT WED WED NIGHT THU  
 
CLOUD COVER MCLEAR MCLEAR MCLEAR MCLEAR  
PRECIP TYPE NONE NONE NONE NONE  
CHANCE PRECIP (%) 0 0 0 0  
CHANCE OF THUNDER (%) 0 0 0 0  
TEMP (24H TREND) 36 (+2) 67 (0) 36 61  
RH % (24H TREND) 90 (+2) 37 (-6) 95 50  
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  
PRECIP BEGIN  
PRECIP END  
MIXING HGT(M-AGL/MSL) 940 1050  
MIXING HGT(FT-AGL/MSL) 3080 3450  
TRANSPORT WND (MPH) N 7 N 12  
VENT RATE (KT-FT) 22060 36600  
CATEGORY DAY 2 3  
INVERSION 6PM 56F/11AM 6PM 50F/11AM  
DISPERSION 5 5  
MAX ADI EARLY 3 VERY POOR 5 VERY POOR 3 VERY POOR 12 POOR  
MAX ADI LATE 3 VERY POOR 21 FAIR 2 VERY POOR 34 FAIR  
MAX LVORI EARLY 5 6 3 7  
MAX LVORI LATE 5 2 7 2  
 
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 

 
 
PAZ076-210830-  
HIGHER ELEVATIONS OF FAYETTE-  
INCLUDING THE CITIES OF CHAMPION AND OHIOPYLE  
108 PM EDT TUE OCT 20 2026  
 
TONIGHT WED WED NIGHT THU  
 
CLOUD COVER CLEAR CLEAR MCLEAR MCLEAR  
PRECIP TYPE NONE NONE NONE NONE  
CHANCE PRECIP (%) 0 0 0 0  
CHANCE OF THUNDER (%) 0 0 0 0  
TEMP (24H TREND) 35 (-3) 66 (0) 35 59  
RH % (24H TREND) 91 (+14) 32 (-7) 98 47  
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  
PRECIP BEGIN  
PRECIP END  
MIXING HGT(M-AGL/MSL) 960 960  
MIXING HGT(FT-AGL/MSL) 3150 3160  
TRANSPORT WND (MPH) N 8 NW 13  
VENT RATE (KT-FT) 22440 39960  
CATEGORY DAY 2 3  
INVERSION 6PM 57F/11AM 6PM 44F/10AM  
DISPERSION 5 5  
MAX ADI EARLY 3 VERY POOR 8 POOR 3 VERY POOR 18 GEN POOR  
MAX ADI LATE 4 VERY POOR 22 FAIR 2 VERY POOR 42 GEN GOOD  
MAX LVORI EARLY 5 5 3 7  
MAX LVORI LATE 5 2 6 2  
 
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 

 
 
PAZ077-210830-  
INDIANA-  
INCLUDING THE CITY OF INDIANA  
108 PM EDT TUE OCT 20 2026  
 
TONIGHT WED WED NIGHT THU  
 
CLOUD COVER CLEAR CLEAR MCLEAR MCLEAR  
PRECIP TYPE NONE NONE NONE NONE  
CHANCE PRECIP (%) 0 0 0 0  
CHANCE OF THUNDER (%) 0 0 0 0  
TEMP (24H TREND) 34 (-1) 66 (-2) 33 62  
RH % (24H TREND) 95 (+3) 36 (-7) 100 49  
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR  
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR NW 5  
PRECIP AMOUNT 0.00 0.00 0.00 0.00  
PRECIP DURATION  
PRECIP BEGIN  
PRECIP END  
MIXING HGT(M-AGL/MSL) 990 1150  
MIXING HGT(FT-AGL/MSL) 3230 3760  
TRANSPORT WND (MPH) N 7 N 14  
VENT RATE (KT-FT) 23040 51820  
CATEGORY DAY 2 3  
INVERSION 6PM 54F/11AM 6PM 44F/10AM  
DISPERSION 5 5  
MAX ADI EARLY 4 VERY POOR 8 POOR 3 VERY POOR 18 GEN POOR  
MAX ADI LATE 4 VERY POOR 23 FAIR 3 VERY POOR 53 GEN GOOD  
MAX LVORI EARLY 5 6 3 9  
MAX LVORI LATE 6 2 8 1  
 
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 

 
 
PAZ078-210830-  
HIGHER ELEVATIONS OF INDIANA-  
INCLUDING THE CITY OF ARMAGH  
108 PM EDT TUE OCT 20 2026  
 
TONIGHT WED WED NIGHT THU  
 
CLOUD COVER CLEAR CLEAR MCLEAR MCLEAR  
PRECIP TYPE NONE NONE NONE NONE  
CHANCE PRECIP (%) 0 0 0 0  
CHANCE OF THUNDER (%) 0 0 0 0  
TEMP (24H TREND) 34 (-4) 66 (-1) 34 60  
RH % (24H TREND) 94 (+6) 34 (-9) 100 49  
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR  
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR NW 6  
PRECIP AMOUNT 0.00 0.00 0.00 0.00  
PRECIP DURATION  
PRECIP BEGIN  
PRECIP END  
MIXING HGT(M-AGL/MSL) 1010 1030  
MIXING HGT(FT-AGL/MSL) 3330 3390  
TRANSPORT WND (MPH) N 7 N 14  
VENT RATE (KT-FT) 20650 45720  
CATEGORY DAY 2 3  
INVERSION 6PM 55F/11AM 6PM 44F/10AM  
DISPERSION 5 5  
MAX ADI EARLY 5 VERY POOR 8 POOR 3 VERY POOR 19 GEN POOR  
MAX ADI LATE 4 VERY POOR 23 FAIR 3 VERY POOR 48 GEN GOOD  
MAX LVORI EARLY 5 6 3 9  
MAX LVORI LATE 5 2 8 2  
 
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 

 
 
WVZ001-210830-  
HANCOCK-  
INCLUDING THE CITY OF WEIRTON  
108 PM EDT TUE OCT 20 2026  
 
TONIGHT WED WED NIGHT THU  
 
CLOUD COVER CLEAR CLEAR MCLEAR MCLEAR  
PRECIP TYPE NONE NONE NONE NONE  
CHANCE PRECIP (%) 0 0 0 0  
CHANCE OF THUNDER (%) 0 0 0 0  
TEMP (24H TREND) 38 (+1) 68 (0) 37 64  
RH % (24H TREND) 92 (-6) 35 (-6) 97 48  
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  
PRECIP BEGIN  
PRECIP END  
MIXING HGT(M-AGL/MSL) 940 1150  
MIXING HGT(FT-AGL/MSL) 3090 3790  
TRANSPORT WND (MPH) N 7 N 13  
VENT RATE (KT-FT) 18760 46700  
CATEGORY DAY 2 3  
INVERSION 7PM 55F/11AM 6PM 47F/10AM  
DISPERSION 5 5  
MAX ADI EARLY 4 VERY POOR 7 POOR 3 VERY POOR 19 GEN POOR  
MAX ADI LATE 4 VERY POOR 21 FAIR 4 VERY POOR 43 GEN GOOD  
MAX LVORI EARLY 4 6 3 7  
MAX LVORI LATE 6 2 8 2  
 
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 

 
 
WVZ002-210830-  
BROOKE-  
INCLUDING THE CITIES OF FOLLANSBEE AND WELLSBURG  
108 PM EDT TUE OCT 20 2026  
 
TONIGHT WED WED NIGHT THU  
 
CLOUD COVER CLEAR MCLEAR MCLEAR MCLEAR  
PRECIP TYPE NONE NONE NONE NONE  
CHANCE PRECIP (%) 0 0 0 0  
CHANCE OF THUNDER (%) 0 0 0 0  
TEMP (24H TREND) 38 (+2) 68 (0) 37 64  
RH % (24H TREND) 94 (0) 34 (-5) 97 47  
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  
PRECIP BEGIN  
PRECIP END  
MIXING HGT(M-AGL/MSL) 980 1160  
MIXING HGT(FT-AGL/MSL) 3210 3790  
TRANSPORT WND (MPH) N 7 N 13  
VENT RATE (KT-FT) 19390 44110  
CATEGORY DAY 2 3  
INVERSION 6PM 56F/11AM 6PM 46F/10AM  
DISPERSION 5 5  
MAX ADI EARLY 3 VERY POOR 7 POOR 3 VERY POOR 14 GEN POOR  
MAX ADI LATE 4 VERY POOR 21 FAIR 3 VERY POOR 42 GEN GOOD  
MAX LVORI EARLY 4 6 3 8  
MAX LVORI LATE 6 2 7 2  
 
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 

 
 
WVZ003-210830-  
OHIO-  
INCLUDING THE CITY OF WHEELING  
108 PM EDT TUE OCT 20 2026  
 
TONIGHT WED WED NIGHT THU  
 
CLOUD COVER CLEAR MCLEAR MCLEAR MCLEAR  
PRECIP TYPE NONE NONE NONE NONE  
CHANCE PRECIP (%) 0 0 0 0  
CHANCE OF THUNDER (%) 0 0 0 0  
TEMP (24H TREND) 38 (+2) 68 (0) 37 64  
RH % (24H TREND) 91 (-7) 35 (-4) 95 46  
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  
PRECIP BEGIN  
PRECIP END  
MIXING HGT(M-AGL/MSL) 990 1160  
MIXING HGT(FT-AGL/MSL) 3240 3810  
TRANSPORT WND (MPH) N 7 N 13  
VENT RATE (KT-FT) 19550 43440  
CATEGORY DAY 2 3  
INVERSION 6PM 56F/11AM 6PM 46F/10AM  
DISPERSION 5 5  
MAX ADI EARLY 3 VERY POOR 7 POOR 3 VERY POOR 15 GEN POOR  
MAX ADI LATE 4 VERY POOR 21 FAIR 3 VERY POOR 37 FAIR  
MAX LVORI EARLY 5 6 3 7  
MAX LVORI LATE 6 2 6 2  
 
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 

 
 
WVZ004-210830-  
MARSHALL-  
INCLUDING THE CITY OF MOUNDSVILLE  
108 PM EDT TUE OCT 20 2026  
 
TONIGHT WED WED NIGHT THU  
 
CLOUD COVER CLEAR MCLEAR MCLEAR MCLEAR  
PRECIP TYPE NONE NONE NONE NONE  
CHANCE PRECIP (%) 0 0 0 0  
CHANCE OF THUNDER (%) 0 0 0 0  
TEMP (24H TREND) 39 (+2) 70 (+2) 37 64  
RH % (24H TREND) 88 (+3) 36 (-2) 94 45  
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  
PRECIP BEGIN  
PRECIP END  
MIXING HGT(M-AGL/MSL) 990 1200  
MIXING HGT(FT-AGL/MSL) 3240 3940  
TRANSPORT WND (MPH) N 8 N 13  
VENT RATE (KT-FT) 22990 44940  
CATEGORY DAY 2 3  
INVERSION 6PM 60F/12PM 6PM 47F/10AM  
DISPERSION 5 5  
MAX ADI EARLY 4 VERY POOR 6 VERY POOR 3 VERY POOR 14 GEN POOR  
MAX ADI LATE 4 VERY POOR 23 FAIR 3 VERY POOR 38 FAIR  
MAX LVORI EARLY 5 5 3 6  
MAX LVORI LATE 6 2 6 2  
 
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 

 
 
WVZ012-210830-  
WETZEL-  
INCLUDING THE CITY OF NEW MARTINSVILLE  
108 PM EDT TUE OCT 20 2026  
 
TONIGHT WED WED NIGHT THU  
 
CLOUD COVER CLEAR MCLEAR MCLEAR MCLEAR  
PRECIP TYPE NONE NONE NONE NONE  
CHANCE PRECIP (%) 0 0 0 0  
CHANCE OF THUNDER (%) 0 0 0 0  
TEMP (24H TREND) 40 (+3) 69 (+1) 38 63  
RH % (24H TREND) 87 (+6) 37 (0) 93 45  
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  
PRECIP BEGIN  
PRECIP END  
MIXING HGT(M-AGL/MSL) 1060 1180  
MIXING HGT(FT-AGL/MSL) 3460 3870  
TRANSPORT WND (MPH) N 8 N 12  
VENT RATE (KT-FT) 24640 44850  
CATEGORY DAY 3 3  
INVERSION 6PM 57F/11AM 6PM 47F/10AM  
DISPERSION 5 5  
MAX ADI EARLY 4 VERY POOR 7 POOR 3 VERY POOR 13 GEN POOR  
MAX ADI LATE 4 VERY POOR 24 FAIR 3 VERY POOR 39 FAIR  
MAX LVORI EARLY 4 5 3 6  
MAX LVORI LATE 5 2 6 2  
 
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 

 
 
WVZ021-210830-  
MARION-  
INCLUDING THE CITY OF FAIRMONT  
108 PM EDT TUE OCT 20 2026  
 
TONIGHT WED WED NIGHT THU  
 
CLOUD COVER MCLEAR MCLEAR MCLEAR MCLEAR  
PRECIP TYPE NONE NONE NONE NONE  
CHANCE PRECIP (%) 0 0 0 0  
CHANCE OF THUNDER (%) 0 0 0 0  
TEMP (24H TREND) 39 (+4) 67 (+1) 37 62  
RH % (24H TREND) 88 (-5) 36 (-2) 95 46  
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  
PRECIP BEGIN  
PRECIP END  
MIXING HGT(M-AGL/MSL) 1050 1130  
MIXING HGT(FT-AGL/MSL) 3450 3720  
TRANSPORT WND (MPH) N 8 N 10  
VENT RATE (KT-FT) 24460 40010  
CATEGORY DAY 3 3  
INVERSION 6PM 56F/11AM 6PM 45F/10AM  
DISPERSION 5 5  
MAX ADI EARLY 4 VERY POOR 6 VERY POOR 3 VERY POOR 12 POOR  
MAX ADI LATE 3 VERY POOR 24 FAIR 2 VERY POOR 43 GEN GOOD  
MAX LVORI EARLY 5 5 3 7  
MAX LVORI LATE 5 2 7 2  
 
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 

 
 
WVZ509-210830-  
MONONGALIA-  
INCLUDING THE CITY OF MORGANTOWN  
108 PM EDT TUE OCT 20 2026  
 
TONIGHT WED WED NIGHT THU  
 
CLOUD COVER MCLEAR MCLEAR MCLEAR MCLEAR  
PRECIP TYPE NONE NONE NONE NONE  
CHANCE PRECIP (%) 0 0 0 0  
CHANCE OF THUNDER (%) 0 0 0 0  
TEMP (24H TREND) 38 (+3) 67 (+1) 37 61  
RH % (24H TREND) 88 (-1) 36 (-3) 94 47  
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  
PRECIP BEGIN  
PRECIP END  
MIXING HGT(M-AGL/MSL) 1000 1150  
MIXING HGT(FT-AGL/MSL) 3280 3760  
TRANSPORT WND (MPH) N 8 N 10  
VENT RATE (KT-FT) 23900 44860  
CATEGORY DAY 3 3  
INVERSION 6PM 60F/12PM 6PM 45F/10AM  
DISPERSION 5 5  
MAX ADI EARLY 4 VERY POOR 5 VERY POOR 3 VERY POOR 12 POOR  
MAX ADI LATE 3 VERY POOR 22 FAIR 2 VERY POOR 40 FAIR  
MAX LVORI EARLY 4 6 3 6  
MAX LVORI LATE 5 2 6 2  
 
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 

 
 
WVZ510-210830-  
RIDGES OF EASTERN MONONGALIA AND NORTHWESTERN PRESTON-  
INCLUDING THE CITY OF COOPERS ROCK  
108 PM EDT TUE OCT 20 2026  
 
TONIGHT WED WED NIGHT THU  
 
CLOUD COVER MCLEAR CLEAR MCLEAR MCLEAR  
PRECIP TYPE NONE NONE NONE NONE  
CHANCE PRECIP (%) 0 0 0 0  
CHANCE OF THUNDER (%) 0 0 0 0  
TEMP (24H TREND) 36 (-2) 66 (+2) 36 57  
RH % (24H TREND) 90 (+15) 35 (-5) 94 48  
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  
PRECIP BEGIN  
PRECIP END  
MIXING HGT(M-AGL/MSL) 940 970  
MIXING HGT(FT-AGL/MSL) 3080 3190  
TRANSPORT WND (MPH) N 8 N 10  
VENT RATE (KT-FT) 21890 32540  
CATEGORY DAY 2 3  
INVERSION 6PM 56F/11AM 6PM 44F/10AM  
DISPERSION 5 5  
MAX ADI EARLY 4 VERY POOR 8 POOR 3 VERY POOR 13 GEN POOR  
MAX ADI LATE 4 VERY POOR 23 FAIR 2 VERY POOR 38 FAIR  
MAX LVORI EARLY 5 5 3 6  
MAX LVORI LATE 5 2 6 2  
 
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 

 
 
WVZ511-210830-  
PRESTON-  
INCLUDING THE CITIES OF KINGWOOD AND BRUCETON MILLS  
108 PM EDT TUE OCT 20 2026  
 
TONIGHT WED WED NIGHT THU  
 
CLOUD COVER MCLEAR CLEAR MCLEAR MCLEAR  
PRECIP TYPE NONE NONE NONE NONE  
CHANCE PRECIP (%) 0 0 0 0  
CHANCE OF THUNDER (%) 0 0 0 0  
TEMP (24H TREND) 36 (0) 68 (+1) 35 60  
RH % (24H TREND) 93 (+2) 32 (-4) 96 44  
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  
PRECIP BEGIN  
PRECIP END  
MIXING HGT(M-AGL/MSL) 1010 980  
MIXING HGT(FT-AGL/MSL) 3330 3220  
TRANSPORT WND (MPH) N 8 N 12  
VENT RATE (KT-FT) 24640 35530  
CATEGORY DAY 3 3  
INVERSION 6PM 58F/11AM 6PM 46F/10AM  
DISPERSION 5 5  
MAX ADI EARLY 4 VERY POOR 8 POOR 3 VERY POOR 15 GEN POOR  
MAX ADI LATE 4 VERY POOR 25 FAIR 2 VERY POOR 39 FAIR  
MAX LVORI EARLY 5 5 3 6  
MAX LVORI LATE 5 2 6 2  
 
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 

 
 
WVZ512-210830-  
EASTERN PRESTON-  
INCLUDING THE CITIES OF TERRA ALTA, ROWLESBURG, AND HAZELTON  
108 PM EDT TUE OCT 20 2026  
 
TONIGHT WED WED NIGHT THU  
 
CLOUD COVER CLEAR CLEAR MCLEAR MCLEAR  
PRECIP TYPE NONE NONE NONE NONE  
CHANCE PRECIP (%) 0 0 0 0  
CHANCE OF THUNDER (%) 0 0 0 0  
TEMP (24H TREND) 37 (-1) 67 (+1) 36 59  
RH % (24H TREND) 90 (+7) 31 (-2) 91 43  
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  
PRECIP BEGIN  
PRECIP END  
MIXING HGT(M-AGL/MSL) 1100 960  
MIXING HGT(FT-AGL/MSL) 3610 3150  
TRANSPORT WND (MPH) N 8 N 14  
VENT RATE (KT-FT) 26290 40200  
CATEGORY DAY 3 3  
INVERSION 6PM 56F/11AM 6PM 46F/10AM  
DISPERSION 5 5  
MAX ADI EARLY 4 VERY POOR 10 POOR 3 VERY POOR 16 GEN POOR  
MAX ADI LATE 5 VERY POOR 27 FAIR 3 VERY POOR 42 GEN GOOD  
MAX LVORI EARLY 4 5 3 5  
MAX LVORI LATE 4 2 6 2  
 
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 

 
 
WVZ513-210830-  
WESTERN TUCKER-  
INCLUDING THE CITIES OF PARSONS, HENDRICKS, AND SAINT GEORGE  
108 PM EDT TUE OCT 20 2026  
 
TONIGHT WED WED NIGHT THU  
 
CLOUD COVER MCLEAR CLEAR MCLEAR MCLEAR  
PRECIP TYPE NONE NONE NONE NONE  
CHANCE PRECIP (%) 0 0 0 0  
CHANCE OF THUNDER (%) 0 0 0 0  
TEMP (24H TREND) 37 (-1) 69 (0) 37 61  
RH % (24H TREND) 88 (+1) 30 (-1) 90 40  
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  
PRECIP BEGIN  
PRECIP END  
MIXING HGT(M-AGL/MSL) 1010 990  
MIXING HGT(FT-AGL/MSL) 3300 3240  
TRANSPORT WND (MPH) N 9 N 13  
VENT RATE (KT-FT) 26060 39260  
CATEGORY DAY 3 3  
INVERSION 6PM 57F/11AM 6PM 45F/10AM  
DISPERSION 5 5  
MAX ADI EARLY 3 VERY POOR 8 POOR 3 VERY POOR 17 GEN POOR  
MAX ADI LATE 4 VERY POOR 28 FAIR 2 VERY POOR 41 GEN GOOD  
MAX LVORI EARLY 5 5 3 5  
MAX LVORI LATE 5 2 6 2  
 
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 

 
 
WVZ514-210830-  
EASTERN TUCKER-  
INCLUDING THE CITIES OF DAVIS, THOMAS, AND CANAAN VALLEY  
108 PM EDT TUE OCT 20 2026  
 
TONIGHT WED WED NIGHT THU  
 
CLOUD COVER MCLEAR CLEAR MCLEAR MCLEAR  
PRECIP TYPE NONE NONE NONE NONE  
CHANCE PRECIP (%) 0 0 0 0  
CHANCE OF THUNDER (%) 0 0 0 0  
TEMP (24H TREND) 36 (0) 65 (+1) 35 58  
RH % (24H TREND) 81 (+1) 29 (-2) 80 34  
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  
PRECIP BEGIN  
PRECIP END  
MIXING HGT(M-AGL/MSL) 1010 980  
MIXING HGT(FT-AGL/MSL) 3330 3210  
TRANSPORT WND (MPH) N 9 N 16  
VENT RATE (KT-FT) 30730 48860  
CATEGORY DAY 3 3  
INVERSION 6PM 54F/11AM 6PM 45F/10AM  
DISPERSION 5 5  
MAX ADI EARLY 5 VERY POOR 10 POOR 4 VERY POOR 26 FAIR  
MAX ADI LATE 5 VERY POOR 28 FAIR 4 VERY POOR 50 GEN GOOD  
MAX LVORI EARLY 4 4 3 3  
MAX LVORI LATE 4 2 4 1  
 
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 

 
   
FORECAST FOR DAYS 3 THROUGH 7
 
   
FRIDAY
 
MOSTLY CLEAR. LOWS IN THE LOWER 40S. HIGHS IN THE LOWER  
60S. NORTH WINDS AROUND 5 MPH.    
SATURDAY
 
CLEAR. LOWS IN THE UPPER 30S. HIGHS IN THE MID 60S.  
NORTHEAST WINDS AROUND 5 MPH.    
SUNDAY
 
MOSTLY CLEAR. LOWS AROUND 40. HIGHS IN THE UPPER 60S.  
SOUTH WINDS AROUND 5 MPH.    
MONDAY
 
PARTLY CLOUDY. LOWS IN THE MID 40S. HIGHS IN THE UPPER  
60S. SOUTHWEST WINDS AROUND 5 MPH.    
TUESDAY
 
MOSTLY CLOUDY. LOWS IN THE UPPER 40S. HIGHS IN THE MID  
60S. WEST WINDS 5 TO 10 MPH.  
 

 
 
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