275
FNUS51 KPBZ 170449
FWFPBZ
FIRE WEATHER PLANNING FORECAST
NATIONAL WEATHER SERVICE PITTSBURGH PA
1249 AM EDT THU SEP 17 2026
DISCUSSION
SHOWERS AND THUNDERSTORMS ARE EXPECTED OFF AND ON THROUGH THE DAY
TODAY AS A COUPLE ROUNDS ARE EXPECTED. THIS WILL KEEP HIGHER
HUMIDITY VALUES ACROSS THE AREA. THE DAYS AHEAD AND INTO THE
COMING WEEKEND LOOK TO BE A WET FORECAST WITH PLENTY OF RAINFALL
OPPORTUNITIES.
OHZ039-172015-
TUSCARAWAS-
INCLUDING THE CITIES OF NEW PHILADELPHIA AND DOVER
1249 AM EDT THU SEP 17 2026
TODAY TONIGHT FRI
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE TSTMS TSTMS NONE
CHANCE PRECIP (%) 60 40 0
CHANCE OF THUNDER (%) 30 30 0
TEMP (24H TREND) 84 (-1) 64 (-4) 78
RH % (24H TREND) 72 (+6) 100 (0) 60
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) NW 5 LGT/VAR NE 5
PRECIP AMOUNT 0.07 0.02 0.00
PRECIP DURATION 4 1
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 2 AM
MIXING HGT(M-AGL/MSL) 760 1120
MIXING HGT(FT-AGL/MSL)2490 3680
TRANSPORT WND (MPH) W 9 NE 9
VENT RATE (KT-FT) 19920 29440
CATEGORY DAY 2 3
INVERSION 74F/10AM 7PM 66F/9AM
DISPERSION 2 3
MAX ADI EARLY 18 GEN POOR 5 VERY POOR 30 FAIR
MAX ADI LATE 22 FAIR 5 VERY POOR 39 FAIR
MAX LVORI EARLY 9 9 8
MAX LVORI LATE 4 9 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ040-172015-
CARROLL-
INCLUDING THE CITIES OF CARROLLTON AND MALVERN
1249 AM EDT THU SEP 17 2026
TODAY TONIGHT FRI
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE TSTMS TSTMS NONE
CHANCE PRECIP (%) 70 30 0
CHANCE OF THUNDER (%) 30 30 0
TEMP (24H TREND) 83 (-1) 63 (-4) 78
RH % (24H TREND) 73 (+5) 100 (0) 60
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR N 5
WIND 20FT/LATE(MPH) NW 6 LGT/VAR NE 5
PRECIP AMOUNT 0.06 0.00 0.00
PRECIP DURATION 5 1
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 2 AM
MIXING HGT(M-AGL/MSL) 750 1220
MIXING HGT(FT-AGL/MSL)2460 4000
TRANSPORT WND (MPH) W 10 NE 9
VENT RATE (KT-FT) 22140 32000
CATEGORY DAY 2 3
INVERSION 74F/10AM 7PM 66F/9AM
DISPERSION 2 3
MAX ADI EARLY 16 GEN POOR 5 VERY POOR 29 FAIR
MAX ADI LATE 22 FAIR 5 VERY POOR 42 GEN GOOD
MAX LVORI EARLY 9 9 8
MAX LVORI LATE 4 9 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ041-172015-
COLUMBIANA-
INCLUDING THE CITIES OF EAST LIVERPOOL, SALEM, AND COLUMBIANA
1249 AM EDT THU SEP 17 2026
TODAY TONIGHT FRI
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE TSTMS TSTMS NONE
CHANCE PRECIP (%) 60 40 0
CHANCE OF THUNDER (%) 30 30 0
TEMP (24H TREND) 82 (-2) 63 (-3) 78
RH % (24H TREND) 76 (+7) 100 (0) 58
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR N 5
WIND 20FT/LATE(MPH) NW 5 LGT/VAR N 5
PRECIP AMOUNT 0.06 0.01 0.00
PRECIP DURATION 5 1
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 9 PM
MIXING HGT(M-AGL/MSL) 780 1350
MIXING HGT(FT-AGL/MSL)2550 4410
TRANSPORT WND (MPH) W 12 N 10
VENT RATE (KT-FT) 25500 39690
CATEGORY DAY 2 3
INVERSION 73F/10AM 7PM 65F/9AM
DISPERSION 2 3
MAX ADI EARLY 18 GEN POOR 6 VERY POOR 30 FAIR
MAX ADI LATE 24 FAIR 5 VERY POOR 53 GEN GOOD
MAX LVORI EARLY 9 8 8
MAX LVORI LATE 4 9 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ048-172015-
COSHOCTON-
INCLUDING THE CITY OF COSHOCTON
1249 AM EDT THU SEP 17 2026
TODAY TONIGHT FRI
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS NONE
CHANCE PRECIP (%) 60 40 0
CHANCE OF THUNDER (%) 30 30 0
TEMP (24H TREND) 84 (-1) 64 (-3) 78
RH % (24H TREND) 72 (+7) 100 (0) 62
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR NE 5
PRECIP AMOUNT 0.08 0.05 0.00
PRECIP DURATION 3 1
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 2 AM
MIXING HGT(M-AGL/MSL) 840 1160
MIXING HGT(FT-AGL/MSL)2760 3820
TRANSPORT WND (MPH) W 10 NE 9
VENT RATE (KT-FT) 24840 30560
CATEGORY DAY 3 3
INVERSION 75F/10AM 7PM 66F/9AM
DISPERSION 3 3
MAX ADI EARLY 18 GEN POOR 5 VERY POOR 30 FAIR
MAX ADI LATE 22 FAIR 4 VERY POOR 42 GEN GOOD
MAX LVORI EARLY 9 9 8
MAX LVORI LATE 4 9 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ049-172015-
HARRISON-
INCLUDING THE CITY OF CADIZ
1249 AM EDT THU SEP 17 2026
TODAY TONIGHT FRI
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE TSTMS TSTMS NONE
CHANCE PRECIP (%) 60 40 0
CHANCE OF THUNDER (%) 30 40 0
TEMP (24H TREND) 84 (-1) 65 (-2) 79
RH % (24H TREND) 72 (+8) 100 (0) 59
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) W 5 LGT/VAR NE 5
PRECIP AMOUNT 0.12 0.01 0.00
PRECIP DURATION 4 1
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 2 AM
MIXING HGT(M-AGL/MSL) 750 1060
MIXING HGT(FT-AGL/MSL)2460 3460
TRANSPORT WND (MPH) W 10 NE 8
VENT RATE (KT-FT) 22140 24220
CATEGORY DAY 2 3
INVERSION 75F/10AM 7PM 67F/9AM
DISPERSION 2 3
MAX ADI EARLY 17 GEN POOR 5 VERY POOR 31 FAIR
MAX ADI LATE 21 FAIR 5 VERY POOR 38 FAIR
MAX LVORI EARLY 9 9 8
MAX LVORI LATE 4 9 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ050-172015-
JEFFERSON OH-
INCLUDING THE CITY OF STEUBENVILLE
1249 AM EDT THU SEP 17 2026
TODAY TONIGHT FRI
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS NONE
CHANCE PRECIP (%) 70 30 0
CHANCE OF THUNDER (%) 40 30 0
TEMP (24H TREND) 84 (-1) 64 (-3) 79
RH % (24H TREND) 73 (+6) 100 (0) 58
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR N 5
WIND 20FT/LATE(MPH) W 5 LGT/VAR N 5
PRECIP AMOUNT 0.11 0.01 0.00
PRECIP DURATION 5 1
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 2 AM
MIXING HGT(M-AGL/MSL) 770 1140
MIXING HGT(FT-AGL/MSL)2510 3740
TRANSPORT WND (MPH) W 10 N 9
VENT RATE (KT-FT) 22590 29920
CATEGORY DAY 2 3
INVERSION 75F/10AM 7PM 66F/9AM
DISPERSION 2 3
MAX ADI EARLY 16 GEN POOR 5 VERY POOR 26 FAIR
MAX ADI LATE 22 FAIR 5 VERY POOR 38 FAIR
MAX LVORI EARLY 9 9 8
MAX LVORI LATE 4 9 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ057-172015-
MUSKINGUM-
INCLUDING THE CITY OF ZANESVILLE
1249 AM EDT THU SEP 17 2026
TODAY TONIGHT FRI
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS NONE
CHANCE PRECIP (%) 60 30 0
CHANCE OF THUNDER (%) 30 30 0
TEMP (24H TREND) 86 (-2) 66 (-2) 79
RH % (24H TREND) 68 (+6) 100 (0) 63
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR
PRECIP AMOUNT 0.05 0.00 0.00
PRECIP DURATION 3 1
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 5 AM
MIXING HGT(M-AGL/MSL) 880 1200
MIXING HGT(FT-AGL/MSL)2880 3950
TRANSPORT WND (MPH) W 10 NE 8
VENT RATE (KT-FT) 25920 27650
CATEGORY DAY 3 3
INVERSION 76F/10AM 7PM 68F/9AM
DISPERSION 3 3
MAX ADI EARLY 19 GEN POOR 4 VERY POOR 21 FAIR
MAX ADI LATE 24 FAIR 4 VERY POOR 40 FAIR
MAX LVORI EARLY 8 9 9
MAX LVORI LATE 3 9 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ058-172015-
GUERNSEY-
INCLUDING THE CITY OF CAMBRIDGE
1249 AM EDT THU SEP 17 2026
TODAY TONIGHT FRI
CLOUD COVER PCLDY MCLDY PCLDY
PRECIP TYPE TSTMS TSTMS NONE
CHANCE PRECIP (%) 70 40 0
CHANCE OF THUNDER (%) 40 40 0
TEMP (24H TREND) 86 (-1) 66 (-1) 80
RH % (24H TREND) 70 (+7) 100 (0) 60
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR
PRECIP AMOUNT 0.03 0.02 0.00
PRECIP DURATION 3 1
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 4 AM
MIXING HGT(M-AGL/MSL) 830 1230
MIXING HGT(FT-AGL/MSL)2710 4040
TRANSPORT WND (MPH) W 10 NE 8
VENT RATE (KT-FT) 24390 28280
CATEGORY DAY 3 3
INVERSION 76F/10AM 7PM 68F/9AM
DISPERSION 3 3
MAX ADI EARLY 18 GEN POOR 4 VERY POOR 23 FAIR
MAX ADI LATE 23 FAIR 4 VERY POOR 38 FAIR
MAX LVORI EARLY 9 9 9
MAX LVORI LATE 3 9 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ059-172015-
BELMONT-
INCLUDING THE CITIES OF MARTINS FERRY AND ST. CLAIRSVILLE
1249 AM EDT THU SEP 17 2026
TODAY TONIGHT FRI
CLOUD COVER PCLDY MCLDY PCLDY
PRECIP TYPE TSTMS TSTMS NONE
CHANCE PRECIP (%) 70 40 0
CHANCE OF THUNDER (%) 30 40 0
TEMP (24H TREND) 85 (-2) 66 (-2) 80
RH % (24H TREND) 72 (+8) 100 (0) 61
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR NE 5
WIND 20FT/LATE(MPH) W 5 LGT/VAR NE 5
PRECIP AMOUNT 0.08 0.04 0.00
PRECIP DURATION 4 1
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 4 AM
MIXING HGT(M-AGL/MSL) 760 1110
MIXING HGT(FT-AGL/MSL)2480 3630
TRANSPORT WND (MPH) W 10 NE 9
VENT RATE (KT-FT) 22320 29040
CATEGORY DAY 2 3
INVERSION 76F/10AM 7PM 68F/9AM
DISPERSION 2 3
MAX ADI EARLY 17 GEN POOR 5 VERY POOR 25 FAIR
MAX ADI LATE 24 FAIR 5 VERY POOR 39 FAIR
MAX LVORI EARLY 9 10 8
MAX LVORI LATE 3 9 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ068-172015-
NOBLE-
INCLUDING THE CITY OF CALDWELL
1249 AM EDT THU SEP 17 2026
TODAY TONIGHT FRI
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS NONE
CHANCE PRECIP (%) 70 30 0
CHANCE OF THUNDER (%) 30 30 0
TEMP (24H TREND) 86 (-2) 67 (0) 80
RH % (24H TREND) 70 (+7) 100 (0) 65
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR
PRECIP AMOUNT 0.08 0.00 0.00
PRECIP DURATION 3 1
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 5 AM
MIXING HGT(M-AGL/MSL) 900 1210
MIXING HGT(FT-AGL/MSL)2950 3960
TRANSPORT WND (MPH) W 10 NE 8
VENT RATE (KT-FT) 26550 27720
CATEGORY DAY 3 3
INVERSION 76F/10AM 7PM 69F/9AM
DISPERSION 3 3
MAX ADI EARLY 18 GEN POOR 4 VERY POOR 22 FAIR
MAX ADI LATE 25 FAIR 4 VERY POOR 38 FAIR
MAX LVORI EARLY 9 10 9
MAX LVORI LATE 3 9 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ069-172015-
MONROE-
INCLUDING THE CITY OF WOODSFIELD
1249 AM EDT THU SEP 17 2026
TODAY TONIGHT FRI
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS NONE
CHANCE PRECIP (%) 70 40 0
CHANCE OF THUNDER (%) 40 40 0
TEMP (24H TREND) 86 (-3) 67 (0) 81
RH % (24H TREND) 70 (+9) 100 (0) 65
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR
PRECIP AMOUNT 0.05 0.01 0.00
PRECIP DURATION 4 2
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 5 AM
MIXING HGT(M-AGL/MSL) 840 1180
MIXING HGT(FT-AGL/MSL)2760 3870
TRANSPORT WND (MPH) W 10 N 8
VENT RATE (KT-FT) 24840 27090
CATEGORY DAY 3 3
INVERSION 76F/10AM 7PM 69F/9AM
DISPERSION 3 3
MAX ADI EARLY 16 GEN POOR 4 VERY POOR 23 FAIR
MAX ADI LATE 26 FAIR 5 VERY POOR 37 FAIR
MAX LVORI EARLY 9 10 9
MAX LVORI LATE 3 9 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ007-172015-
MERCER-
INCLUDING THE CITIES OF SHARON, HERMITAGE, AND GROVE CITY
1249 AM EDT THU SEP 17 2026
TODAY TONIGHT FRI
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE TSTMS NONE NONE
CHANCE PRECIP (%) 70 0 0
CHANCE OF THUNDER (%) 20 0 0
TEMP (24H TREND) 81 (-2) 61 (-4) 77
RH % (24H TREND) 80 (+9) 100 (0) 61
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR N 5
WIND 20FT/LATE(MPH) NW 6 LGT/VAR N 7
PRECIP AMOUNT 0.22 0.00 0.00
PRECIP DURATION 5
PRECIP BEGIN 6 AM
PRECIP END 6 PM
MIXING HGT(M-AGL/MSL) 680 1340
MIXING HGT(FT-AGL/MSL)2220 4400
TRANSPORT WND (MPH) W 10 N 10
VENT RATE (KT-FT) 19980 39600
CATEGORY DAY 2 3
INVERSION 72F/10AM 7PM 64F/9AM
DISPERSION 2 3
MAX ADI EARLY 16 GEN POOR 6 VERY POOR 39 FAIR
MAX ADI LATE 21 FAIR 5 VERY POOR 52 GEN GOOD
MAX LVORI EARLY 9 9 8
MAX LVORI LATE 5 9 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ008-172015-
VENANGO-
INCLUDING THE CITIES OF OIL CITY AND FRANKLIN
1249 AM EDT THU SEP 17 2026
TODAY TONIGHT FRI
CLOUD COVER MCLDY PCLDY MCLEAR
PRECIP TYPE TSTMS NONE NONE
CHANCE PRECIP (%) 80 0 0
CHANCE OF THUNDER (%) 30 0 0
TEMP (24H TREND) 80 (-1) 59 (-6) 76
RH % (24H TREND) 83 (+10) 100 (0) 60
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) NW 5 LGT/VAR N 5
PRECIP AMOUNT 0.24 0.00 0.00
PRECIP DURATION 5
PRECIP BEGIN 6 AM
PRECIP END 6 PM
MIXING HGT(M-AGL/MSL) 730 1470
MIXING HGT(FT-AGL/MSL)2400 4830
TRANSPORT WND (MPH) NW 10 N 10
VENT RATE (KT-FT) 21600 43470
CATEGORY DAY 2 3
INVERSION 70F/10AM 7PM 61F/9AM
DISPERSION 2 3
MAX ADI EARLY 13 GEN POOR 5 VERY POOR 37 FAIR
MAX ADI LATE 22 FAIR 5 VERY POOR 57 GEN GOOD
MAX LVORI EARLY 9 9 8
MAX LVORI LATE 5 9 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ009-172015-
FOREST-
INCLUDING THE CITY OF TIONESTA
1249 AM EDT THU SEP 17 2026
TODAY TONIGHT FRI
CLOUD COVER MCLDY PCLDY MCLEAR
PRECIP TYPE TSTMS NONE NONE
CHANCE PRECIP (%) 80 0 0
CHANCE OF THUNDER (%) 20 0 0
TEMP (24H TREND) 79 (-2) 57 (-7) 75
RH % (24H TREND) 79 (+5) 100 (0) 56
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR
PRECIP AMOUNT 0.18 0.00 0.00
PRECIP DURATION 5
PRECIP BEGIN 6 AM
PRECIP END 6 PM
MIXING HGT(M-AGL/MSL) 770 1450
MIXING HGT(FT-AGL/MSL)2520 4750
TRANSPORT WND (MPH) NW 10 N 12
VENT RATE (KT-FT) 22680 47500
CATEGORY DAY 2 3
INVERSION 69F/10AM 7PM 60F/9AM
DISPERSION 2 3
MAX ADI EARLY 15 GEN POOR 5 VERY POOR 40 FAIR
MAX ADI LATE 22 FAIR 4 VERY POOR 62 GOOD
MAX LVORI EARLY 9 9 8
MAX LVORI LATE 5 9 2
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ013-172015-
LAWRENCE-
INCLUDING THE CITIES OF NEW CASTLE AND ELLWOOD CITY
1249 AM EDT THU SEP 17 2026
TODAY TONIGHT FRI
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS NONE
CHANCE PRECIP (%) 70 30 0
CHANCE OF THUNDER (%) 30 30 0
TEMP (24H TREND) 83 (-1) 62 (-4) 79
RH % (24H TREND) 75 (+7) 100 (0) 58
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) NW 5 LGT/VAR N 5
PRECIP AMOUNT 0.16 0.00 0.00
PRECIP DURATION 5 0
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 8 PM
MIXING HGT(M-AGL/MSL) 750 1360
MIXING HGT(FT-AGL/MSL)2450 4470
TRANSPORT WND (MPH) W 10 N 10
VENT RATE (KT-FT) 22050 40230
CATEGORY DAY 2 3
INVERSION 73F/10AM 7PM 65F/9AM
DISPERSION 2 3
MAX ADI EARLY 17 GEN POOR 6 VERY POOR 35 FAIR
MAX ADI LATE 22 FAIR 4 VERY POOR 54 GEN GOOD
MAX LVORI EARLY 9 9 9
MAX LVORI LATE 4 9 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ014-172015-
BUTLER-
INCLUDING THE CITY OF BUTLER
1249 AM EDT THU SEP 17 2026
TODAY TONIGHT FRI
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS NONE
CHANCE PRECIP (%) 70 30 0
CHANCE OF THUNDER (%) 30 30 0
TEMP (24H TREND) 82 (-2) 61 (-4) 79
RH % (24H TREND) 79 (+8) 100 (0) 60
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) W 5 LGT/VAR N 5
PRECIP AMOUNT 0.16 0.00 0.00
PRECIP DURATION 5 0
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 8 PM
MIXING HGT(M-AGL/MSL) 750 1460
MIXING HGT(FT-AGL/MSL)2460 4800
TRANSPORT WND (MPH) NW 10 N 9
VENT RATE (KT-FT) 22140 38400
CATEGORY DAY 2 3
INVERSION 72F/10AM 7PM 64F/9AM
DISPERSION 2 3
MAX ADI EARLY 17 GEN POOR 5 VERY POOR 29 FAIR
MAX ADI LATE 24 FAIR 5 VERY POOR 50 GEN GOOD
MAX LVORI EARLY 9 9 9
MAX LVORI LATE 5 9 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ015-172015-
CLARION-
INCLUDING THE CITY OF CLARION
1249 AM EDT THU SEP 17 2026
TODAY TONIGHT FRI
CLOUD COVER MCLDY PCLDY MCLEAR
PRECIP TYPE TSTMS TSTMS NONE
CHANCE PRECIP (%) 80 30 0
CHANCE OF THUNDER (%) 20 20 0
TEMP (24H TREND) 82 (0) 59 (-5) 77
RH % (24H TREND) 79 (+5) 100 (0) 56
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) W 5 LGT/VAR LGT/VAR
PRECIP AMOUNT 0.36 0.00 0.00
PRECIP DURATION 6 0
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 8 PM
MIXING HGT(M-AGL/MSL) 730 1510
MIXING HGT(FT-AGL/MSL)2380 4950
TRANSPORT WND (MPH) NW 10 N 10
VENT RATE (KT-FT) 21420 44550
CATEGORY DAY 2 3
INVERSION 70F/10AM 7PM 62F/9AM
DISPERSION 2 3
MAX ADI EARLY 15 GEN POOR 5 VERY POOR 32 FAIR
MAX ADI LATE 22 FAIR 4 VERY POOR 58 GEN GOOD
MAX LVORI EARLY 9 9 8
MAX LVORI LATE 4 9 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ016-172015-
JEFFERSON PA-
INCLUDING THE CITIES OF PUNXSUTAWNEY AND BROOKVILLE
1249 AM EDT THU SEP 17 2026
TODAY TONIGHT FRI
CLOUD COVER MCLDY MCLDY MCLEAR
PRECIP TYPE TSTMS TSTMS NONE
CHANCE PRECIP (%) 90 40 0
CHANCE OF THUNDER (%) 30 20 0
TEMP (24H TREND) 80 (-2) 59 (-4) 76
RH % (24H TREND) 81 (+9) 100 (0) 56
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) W 5 LGT/VAR LGT/VAR
PRECIP AMOUNT 0.42 0.01 0.00
PRECIP DURATION 7 0
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 8 PM
MIXING HGT(M-AGL/MSL) 680 1530
MIXING HGT(FT-AGL/MSL)2220 5030
TRANSPORT WND (MPH) W 12 N 10
VENT RATE (KT-FT) 22200 45270
CATEGORY DAY 2 3
INVERSION 70F/10AM 7PM 62F/9AM
DISPERSION 2 3
MAX ADI EARLY 17 GEN POOR 6 VERY POOR 30 FAIR
MAX ADI LATE 22 FAIR 4 VERY POOR 59 GEN GOOD
MAX LVORI EARLY 9 9 8
MAX LVORI LATE 4 9 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ020-172015-
BEAVER-
INCLUDING THE CITIES OF ALIQUIPPA, BEAVER FALLS, AMBRIDGE,
AND MONACA
1249 AM EDT THU SEP 17 2026
TODAY TONIGHT FRI
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE TSTMS TSTMS NONE
CHANCE PRECIP (%) 70 40 0
CHANCE OF THUNDER (%) 40 40 0
TEMP (24H TREND) 83 (-2) 63 (-3) 79
RH % (24H TREND) 76 (+9) 100 (0) 57
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) W 5 LGT/VAR N 5
PRECIP AMOUNT 0.07 0.01 0.00
PRECIP DURATION 5 1
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 1 AM
MIXING HGT(M-AGL/MSL) 820 1340
MIXING HGT(FT-AGL/MSL)2680 4400
TRANSPORT WND (MPH) W 12 N 9
VENT RATE (KT-FT) 26800 35200
CATEGORY DAY 3 3
INVERSION 73F/10AM 7PM 66F/9AM
DISPERSION 3 3
MAX ADI EARLY 17 GEN POOR 5 VERY POOR 29 FAIR
MAX ADI LATE 26 FAIR 4 VERY POOR 46 GEN GOOD
MAX LVORI EARLY 9 9 9
MAX LVORI LATE 4 9 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ021-172015-
ALLEGHENY-
INCLUDING THE CITY OF PITTSBURGH METRO AREA
1249 AM EDT THU SEP 17 2026
TODAY TONIGHT FRI
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS NONE
CHANCE PRECIP (%) 70 40 0
CHANCE OF THUNDER (%) 40 40 0
TEMP (24H TREND) 84 (-2) 65 (-1) 79
RH % (24H TREND) 76 (+10) 99 (-1) 59
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) W 6 LGT/VAR N 6
PRECIP AMOUNT 0.11 0.01 0.00
PRECIP DURATION 5 1
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 2 AM
MIXING HGT(M-AGL/MSL) 820 1190
MIXING HGT(FT-AGL/MSL)2680 3890
TRANSPORT WND (MPH) W 12 N 8
VENT RATE (KT-FT) 26800 27230
CATEGORY DAY 3 3
INVERSION 74F/10AM 7PM 67F/9AM
DISPERSION 3 3
MAX ADI EARLY 17 GEN POOR 5 VERY POOR 21 FAIR
MAX ADI LATE 24 FAIR 5 VERY POOR 38 FAIR
MAX LVORI EARLY 9 9 9
MAX LVORI LATE 4 9 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ022-172015-
ARMSTRONG-
INCLUDING THE CITIES OF KITTANNING AND FORD CITY
1249 AM EDT THU SEP 17 2026
TODAY TONIGHT FRI
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS NONE
CHANCE PRECIP (%) 80 40 0
CHANCE OF THUNDER (%) 30 30 0
TEMP (24H TREND) 84 (-1) 61 (-3) 79
RH % (24H TREND) 81 (+9) 100 (0) 60
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) W 5 LGT/VAR N 5
PRECIP AMOUNT 0.22 0.01 0.00
PRECIP DURATION 5 1
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 2 AM
MIXING HGT(M-AGL/MSL) 740 1430
MIXING HGT(FT-AGL/MSL)2440 4680
TRANSPORT WND (MPH) W 12 N 9
VENT RATE (KT-FT) 24400 37440
CATEGORY DAY 2 3
INVERSION 72F/10AM 7PM 64F/9AM
DISPERSION 2 3
MAX ADI EARLY 17 GEN POOR 6 VERY POOR 29 FAIR
MAX ADI LATE 24 FAIR 4 VERY POOR 49 GEN GOOD
MAX LVORI EARLY 9 9 8
MAX LVORI LATE 4 9 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ029-172015-
WASHINGTON-
INCLUDING THE CITIES OF WASHINGTON AND CANONSBURG
1249 AM EDT THU SEP 17 2026
TODAY TONIGHT FRI
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS NONE
CHANCE PRECIP (%) 70 30 0
CHANCE OF THUNDER (%) 40 30 0
TEMP (24H TREND) 83 (-3) 65 (-2) 79
RH % (24H TREND) 76 (+10) 100 (0) 61
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) W 6 LGT/VAR N 6
PRECIP AMOUNT 0.16 0.02 0.00
PRECIP DURATION 6 1
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 2 AM
MIXING HGT(M-AGL/MSL) 690 1080
MIXING HGT(FT-AGL/MSL)2250 3540
TRANSPORT WND (MPH) W 12 N 9
VENT RATE (KT-FT) 22500 28320
CATEGORY DAY 2 3
INVERSION 75F/10AM 7PM 67F/9AM
DISPERSION 2 3
MAX ADI EARLY 16 GEN POOR 5 VERY POOR 22 FAIR
MAX ADI LATE 22 FAIR 5 VERY POOR 38 FAIR
MAX LVORI EARLY 9 9 8
MAX LVORI LATE 4 9 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ031-172015-
GREENE-
INCLUDING THE CITY OF WAYNESBURG
1249 AM EDT THU SEP 17 2026
TODAY TONIGHT FRI
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS NONE
CHANCE PRECIP (%) 80 50 0
CHANCE OF THUNDER (%) 40 40 0
TEMP (24H TREND) 84 (-4) 66 (0) 79
RH % (24H TREND) 75 (+8) 100 (0) 68
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) W 5 LGT/VAR N 5
PRECIP AMOUNT 0.16 0.03 0.00
PRECIP DURATION 5 2
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 5 AM
MIXING HGT(M-AGL/MSL) 760 1140
MIXING HGT(FT-AGL/MSL)2480 3730
TRANSPORT WND (MPH) W 12 N 9
VENT RATE (KT-FT) 24800 29840
CATEGORY DAY 2 3
INVERSION 75F/10AM 7PM 67F/9AM
DISPERSION 2 3
MAX ADI EARLY 17 GEN POOR 6 VERY POOR 22 FAIR
MAX ADI LATE 22 FAIR 4 VERY POOR 41 GEN GOOD
MAX LVORI EARLY 9 9 9
MAX LVORI LATE 4 9 4
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ073-172015-
WESTMORELAND-
INCLUDING THE CITIES OF MURRYSVILLE, GREENSBURG, NEW KENSINGTON,
LOWER BURRELL, LATROBE, AND MONESSEN
1249 AM EDT THU SEP 17 2026
TODAY TONIGHT FRI
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE TSTMS TSTMS NONE
CHANCE PRECIP (%) 90 50 0
CHANCE OF THUNDER (%) 40 40 0
TEMP (24H TREND) 84 (-3) 65 (0) 79
RH % (24H TREND) 77 (+13) 100 (0) 62
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) W 7 LGT/VAR N 6
PRECIP AMOUNT 0.22 0.02 0.00
PRECIP DURATION 8 1
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 2 AM
MIXING HGT(M-AGL/MSL) 760 1130
MIXING HGT(FT-AGL/MSL)2480 3710
TRANSPORT WND (MPH) W 12 N 9
VENT RATE (KT-FT) 24800 29680
CATEGORY DAY 2 3
INVERSION 74F/10AM 6PM 67F/9AM
DISPERSION 2 3
MAX ADI EARLY 15 GEN POOR 5 VERY POOR 20 GEN POOR
MAX ADI LATE 24 FAIR 4 VERY POOR 36 FAIR
MAX LVORI EARLY 9 10 9
MAX LVORI LATE 4 9 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ074-172015-
HIGHER ELEVATIONS OF WESTMORELAND-
INCLUDING THE CITIES OF LIGONIER AND DONEGAL
1249 AM EDT THU SEP 17 2026
TODAY TONIGHT FRI
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE TSTMS TSTMS NONE
CHANCE PRECIP (%) 90 60 0
CHANCE OF THUNDER (%) 40 30 0
TEMP (24H TREND) 84 (-3) 64 (0) 79
RH % (24H TREND) 72 (+9) 100 (0) 59
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) W 6 LGT/VAR LGT/VAR
PRECIP AMOUNT 0.22 0.02 0.00
PRECIP DURATION 8 2
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 2 AM
MIXING HGT(M-AGL/MSL) 660 1200
MIXING HGT(FT-AGL/MSL)2160 3940
TRANSPORT WND (MPH) W 13 N 9
VENT RATE (KT-FT) 23760 31520
CATEGORY DAY 2 3
INVERSION 72F/10AM 7PM 65F/9AM
DISPERSION 2 3
MAX ADI EARLY 18 GEN POOR 7 POOR 19 GEN POOR
MAX ADI LATE 24 FAIR 4 VERY POOR 43 GEN GOOD
MAX LVORI EARLY 9 9 9
MAX LVORI LATE 4 9 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ075-172015-
FAYETTE-
INCLUDING THE CITY OF UNIONTOWN
1249 AM EDT THU SEP 17 2026
TODAY TONIGHT FRI
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE TSTMS TSTMS NONE
CHANCE PRECIP (%) 80 50 0
CHANCE OF THUNDER (%) 40 40 0
TEMP (24H TREND) 84 (-5) 66 (0) 79
RH % (24H TREND) 75 (+14) 100 (+1) 66
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) W 5 LGT/VAR N 6
PRECIP AMOUNT 0.23 0.03 0.00
PRECIP DURATION 8 2
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 2 AM
MIXING HGT(M-AGL/MSL) 630 1100
MIXING HGT(FT-AGL/MSL)2080 3600
TRANSPORT WND (MPH) W 10 N 9
VENT RATE (KT-FT) 18720 28800
CATEGORY DAY 2 3
INVERSION 75F/10AM 7PM 68F/9AM
DISPERSION 2 3
MAX ADI EARLY 17 GEN POOR 5 VERY POOR 22 FAIR
MAX ADI LATE 21 FAIR 3 VERY POOR 39 FAIR
MAX LVORI EARLY 8 9 9
MAX LVORI LATE 4 9 4
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ076-172015-
HIGHER ELEVATIONS OF FAYETTE-
INCLUDING THE CITIES OF CHAMPION AND OHIOPYLE
1249 AM EDT THU SEP 17 2026
TODAY TONIGHT FRI
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE TSTMS TSTMS NONE
CHANCE PRECIP (%) 80 60 0
CHANCE OF THUNDER (%) 40 40 0
TEMP (24H TREND) 83 (-3) 64 (+1) 78
RH % (24H TREND) 71 (+7) 100 (0) 63
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR
PRECIP AMOUNT 0.26 0.04 0.00
PRECIP DURATION 8 2
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 2 AM
MIXING HGT(M-AGL/MSL) 610 1050
MIXING HGT(FT-AGL/MSL)2010 3430
TRANSPORT WND (MPH) W 12 N 9
VENT RATE (KT-FT) 20100 27440
CATEGORY DAY 2 3
INVERSION 73F/10AM 7PM 66F/9AM
DISPERSION 2 3
MAX ADI EARLY 19 GEN POOR 5 VERY POOR 22 FAIR
MAX ADI LATE 23 FAIR 4 VERY POOR 38 FAIR
MAX LVORI EARLY 9 9 9
MAX LVORI LATE 4 9 4
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ077-172015-
INDIANA-
INCLUDING THE CITY OF INDIANA
1249 AM EDT THU SEP 17 2026
TODAY TONIGHT FRI
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE TSTMS TSTMS NONE
CHANCE PRECIP (%) 90 50 0
CHANCE OF THUNDER (%) 30 30 0
TEMP (24H TREND) 83 (-1) 61 (-3) 79
RH % (24H TREND) 80 (+7) 100 (0) 59
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) W 6 LGT/VAR N 5
PRECIP AMOUNT 0.20 0.02 0.00
PRECIP DURATION 7 1
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 2 AM
MIXING HGT(M-AGL/MSL) 720 1470
MIXING HGT(FT-AGL/MSL)2360 4840
TRANSPORT WND (MPH) W 13 N 9
VENT RATE (KT-FT) 25960 38720
CATEGORY DAY 3 3
INVERSION 74F/11AM 7PM 65F/9AM
DISPERSION 3 3
MAX ADI EARLY 17 GEN POOR 7 POOR 24 FAIR
MAX ADI LATE 25 FAIR 3 VERY POOR 49 GEN GOOD
MAX LVORI EARLY 9 9 9
MAX LVORI LATE 4 9 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ078-172015-
HIGHER ELEVATIONS OF INDIANA-
INCLUDING THE CITY OF ARMAGH
1249 AM EDT THU SEP 17 2026
TODAY TONIGHT FRI
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE TSTMS TSTMS NONE
CHANCE PRECIP (%) 90 60 0
CHANCE OF THUNDER (%) 30 30 0
TEMP (24H TREND) 82 (-3) 63 (-1) 78
RH % (24H TREND) 78 (+7) 100 (0) 59
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) W 6 LGT/VAR LGT/VAR
PRECIP AMOUNT 0.14 0.02 0.00
PRECIP DURATION 8 2
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 2 AM
MIXING HGT(M-AGL/MSL) 670 1360
MIXING HGT(FT-AGL/MSL)2200 4460
TRANSPORT WND (MPH) W 13 N 9
VENT RATE (KT-FT) 24200 35680
CATEGORY DAY 3 3
INVERSION 73F/11AM 6PM 65F/9AM
DISPERSION 3 3
MAX ADI EARLY 17 GEN POOR 7 POOR 24 FAIR
MAX ADI LATE 26 FAIR 4 VERY POOR 46 GEN GOOD
MAX LVORI EARLY 9 9 9
MAX LVORI LATE 4 9 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ001-172015-
HANCOCK-
INCLUDING THE CITY OF WEIRTON
1249 AM EDT THU SEP 17 2026
TODAY TONIGHT FRI
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE TSTMS TSTMS NONE
CHANCE PRECIP (%) 70 40 0
CHANCE OF THUNDER (%) 40 40 0
TEMP (24H TREND) 83 (-2) 64 (-3) 79
RH % (24H TREND) 76 (+6) 100 (0) 57
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) W 5 LGT/VAR N 5
PRECIP AMOUNT 0.09 0.01 0.00
PRECIP DURATION 5 1
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 2 AM
MIXING HGT(M-AGL/MSL) 790 1230
MIXING HGT(FT-AGL/MSL)2580 4030
TRANSPORT WND (MPH) W 10 N 9
VENT RATE (KT-FT) 23220 32240
CATEGORY DAY 2 3
INVERSION 74F/10AM 7PM 66F/9AM
DISPERSION 2 3
MAX ADI EARLY 16 GEN POOR 5 VERY POOR 31 FAIR
MAX ADI LATE 22 FAIR 4 VERY POOR 43 GEN GOOD
MAX LVORI EARLY 9 9 9
MAX LVORI LATE 4 9 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ002-172015-
BROOKE-
INCLUDING THE CITIES OF FOLLANSBEE AND WELLSBURG
1249 AM EDT THU SEP 17 2026
TODAY TONIGHT FRI
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS NONE
CHANCE PRECIP (%) 70 30 0
CHANCE OF THUNDER (%) 40 30 0
TEMP (24H TREND) 84 (-1) 65 (-2) 79
RH % (24H TREND) 74 (+7) 100 (0) 59
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) W 5 LGT/VAR N 5
PRECIP AMOUNT 0.13 0.02 0.00
PRECIP DURATION 5 1
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 2 AM
MIXING HGT(M-AGL/MSL) 730 1040
MIXING HGT(FT-AGL/MSL)2410 3420
TRANSPORT WND (MPH) W 10 NE 8
VENT RATE (KT-FT) 21690 23940
CATEGORY DAY 2 3
INVERSION 75F/10AM 7PM 67F/9AM
DISPERSION 2 3
MAX ADI EARLY 15 GEN POOR 5 VERY POOR 21 FAIR
MAX ADI LATE 20 GEN POOR 5 VERY POOR 34 FAIR
MAX LVORI EARLY 9 9 9
MAX LVORI LATE 4 9 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ003-172015-
OHIO-
INCLUDING THE CITY OF WHEELING
1249 AM EDT THU SEP 17 2026
TODAY TONIGHT FRI
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS NONE
CHANCE PRECIP (%) 70 30 0
CHANCE OF THUNDER (%) 40 30 0
TEMP (24H TREND) 84 (-4) 66 (-1) 79
RH % (24H TREND) 74 (+13) 100 (0) 62
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) W 5 LGT/VAR N 5
PRECIP AMOUNT 0.13 0.02 0.00
PRECIP DURATION 5 1
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 2 AM
MIXING HGT(M-AGL/MSL) 700 1070
MIXING HGT(FT-AGL/MSL)2300 3510
TRANSPORT WND (MPH) W 10 N 8
VENT RATE (KT-FT) 20700 24570
CATEGORY DAY 2 3
INVERSION 75F/10AM 7PM 67F/9AM
DISPERSION 2 3
MAX ADI EARLY 16 GEN POOR 5 VERY POOR 21 FAIR
MAX ADI LATE 21 FAIR 5 VERY POOR 34 FAIR
MAX LVORI EARLY 9 10 9
MAX LVORI LATE 4 9 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ004-172015-
MARSHALL-
INCLUDING THE CITY OF MOUNDSVILLE
1249 AM EDT THU SEP 17 2026
TODAY TONIGHT FRI
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS NONE
CHANCE PRECIP (%) 70 40 0
CHANCE OF THUNDER (%) 40 40 0
TEMP (24H TREND) 85 (-3) 67 (-1) 80
RH % (24H TREND) 75 (+8) 100 (0) 68
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) W 5 LGT/VAR N 5
PRECIP AMOUNT 0.12 0.03 0.00
PRECIP DURATION 6 1
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 5 AM
MIXING HGT(M-AGL/MSL) 810 1140
MIXING HGT(FT-AGL/MSL)2650 3750
TRANSPORT WND (MPH) W 10 N 8
VENT RATE (KT-FT) 23850 26250
CATEGORY DAY 3 3
INVERSION 75F/10AM 7PM 68F/9AM
DISPERSION 3 3
MAX ADI EARLY 14 GEN POOR 5 VERY POOR 22 FAIR
MAX ADI LATE 23 FAIR 5 VERY POOR 39 FAIR
MAX LVORI EARLY 9 10 9
MAX LVORI LATE 4 9 4
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ012-172015-
WETZEL-
INCLUDING THE CITY OF NEW MARTINSVILLE
1249 AM EDT THU SEP 17 2026
TODAY TONIGHT FRI
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS NONE
CHANCE PRECIP (%) 70 50 0
CHANCE OF THUNDER (%) 40 40 0
TEMP (24H TREND) 85 (-2) 67 (0) 79
RH % (24H TREND) 76 (+8) 100 (0) 71
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR
PRECIP AMOUNT 0.09 0.03 0.00
PRECIP DURATION 6 2
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 5 AM
MIXING HGT(M-AGL/MSL) 870 1180
MIXING HGT(FT-AGL/MSL)2840 3860
TRANSPORT WND (MPH) W 12 N 9
VENT RATE (KT-FT) 28400 30880
CATEGORY DAY 3 3
INVERSION 75F/10AM 7PM 68F/9AM
DISPERSION 3 3
MAX ADI EARLY 15 GEN POOR 4 VERY POOR 22 FAIR
MAX ADI LATE 26 FAIR 4 VERY POOR 42 GEN GOOD
MAX LVORI EARLY 9 10 9
MAX LVORI LATE 3 9 4
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ021-172015-
MARION-
INCLUDING THE CITY OF FAIRMONT
1249 AM EDT THU SEP 17 2026
TODAY TONIGHT FRI
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE TSTMS TSTMS NONE
CHANCE PRECIP (%) 80 60 0
CHANCE OF THUNDER (%) 40 40 0
TEMP (24H TREND) 83 (-7) 66 (+2) 78
RH % (24H TREND) 77 (+12) 100 (0) 73
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) W 5 LGT/VAR N 5
PRECIP AMOUNT 0.17 0.05 0.00
PRECIP DURATION 6 2
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 6 AM
MIXING HGT(M-AGL/MSL) 810 1140
MIXING HGT(FT-AGL/MSL)2670 3730
TRANSPORT WND (MPH) W 12 N 9
VENT RATE (KT-FT) 26700 29840
CATEGORY DAY 3 3
INVERSION 74F/10AM 6PM 68F/9AM
DISPERSION 3 3
MAX ADI EARLY 16 GEN POOR 5 VERY POOR 20 GEN POOR
MAX ADI LATE 25 FAIR 3 VERY POOR 41 GEN GOOD
MAX LVORI EARLY 9 10 9
MAX LVORI LATE 4 10 4
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ509-172015-
MONONGALIA-
INCLUDING THE CITY OF MORGANTOWN
1249 AM EDT THU SEP 17 2026
TODAY TONIGHT FRI
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE TSTMS TSTMS NONE
CHANCE PRECIP (%) 80 70 0
CHANCE OF THUNDER (%) 40 40 0
TEMP (24H TREND) 83 (-6) 66 (0) 78
RH % (24H TREND) 77 (+11) 100 (+1) 70
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) W 5 LGT/VAR N 5
PRECIP AMOUNT 0.27 0.10 0.00
PRECIP DURATION 7 3
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 6 AM
MIXING HGT(M-AGL/MSL) 770 1130
MIXING HGT(FT-AGL/MSL)2530 3700
TRANSPORT WND (MPH) W 10 N 9
VENT RATE (KT-FT) 22770 29600
CATEGORY DAY 2 3
INVERSION 75F/10AM 7PM 68F/9AM
DISPERSION 2 3
MAX ADI EARLY 17 GEN POOR 5 VERY POOR 20 GEN POOR
MAX ADI LATE 22 FAIR 3 VERY POOR 41 GEN GOOD
MAX LVORI EARLY 9 9 9
MAX LVORI LATE 4 10 4
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ510-172015-
RIDGES OF EASTERN MONONGALIA AND NORTHWESTERN PRESTON-
INCLUDING THE CITY OF COOPERS ROCK
1249 AM EDT THU SEP 17 2026
TODAY TONIGHT FRI
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE TSTMS TSTMS NONE
CHANCE PRECIP (%) 80 70 0
CHANCE OF THUNDER (%) 40 40 0
TEMP (24H TREND) 82 (-4) 64 (0) 77
RH % (24H TREND) 77 (+9) 100 (+2) 72
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR
PRECIP AMOUNT 0.29 0.15 0.00
PRECIP DURATION 7 4
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 6 AM
MIXING HGT(M-AGL/MSL) 670 1020
MIXING HGT(FT-AGL/MSL)2190 3350
TRANSPORT WND (MPH) W 10 N 9
VENT RATE (KT-FT) 19710 26800
CATEGORY DAY 2 3
INVERSION 73F/10AM 7PM 66F/9AM
DISPERSION 2 3
MAX ADI EARLY 16 GEN POOR 4 VERY POOR 16 GEN POOR
MAX ADI LATE 21 FAIR 3 VERY POOR 38 FAIR
MAX LVORI EARLY 7 9 9
MAX LVORI LATE 4 9 4
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ511-172015-
PRESTON-
INCLUDING THE CITIES OF KINGWOOD AND BRUCETON MILLS
1249 AM EDT THU SEP 17 2026
TODAY TONIGHT FRI
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE TSTMS TSTMS NONE
CHANCE PRECIP (%) 80 60 0
CHANCE OF THUNDER (%) 40 30 0
TEMP (24H TREND) 83 (-4) 65 (+2) 78
RH % (24H TREND) 74 (+7) 100 (+3) 69
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR
PRECIP AMOUNT 0.27 0.14 0.00
PRECIP DURATION 6 4
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 6 AM
MIXING HGT(M-AGL/MSL) 740 1030
MIXING HGT(FT-AGL/MSL)2430 3390
TRANSPORT WND (MPH) W 12 N 9
VENT RATE (KT-FT) 24300 27120
CATEGORY DAY 2 3
INVERSION 74F/10AM 7PM 69F/10AM
DISPERSION 2 3
MAX ADI EARLY 18 GEN POOR 5 VERY POOR 18 GEN POOR
MAX ADI LATE 23 FAIR 3 VERY POOR 38 FAIR
MAX LVORI EARLY 7 9 9
MAX LVORI LATE 3 9 4
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ512-172015-
EASTERN PRESTON-
INCLUDING THE CITIES OF TERRA ALTA, ROWLESBURG, AND HAZELTON
1249 AM EDT THU SEP 17 2026
TODAY TONIGHT FRI
CLOUD COVER PCLDY MCLDY PCLDY
PRECIP TYPE TSTMS TSTMS SHOWERS
CHANCE PRECIP (%) 80 60 10
CHANCE OF THUNDER (%) 30 30 0
TEMP (24H TREND) 81 (-5) 64 (0) 77
RH % (24H TREND) 76 (+9) 100 (+3) 72
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR
PRECIP AMOUNT 0.23 0.08 0.00
PRECIP DURATION 5 3 1
PRECIP BEGIN 6 AM CONTINUING 7 AM
PRECIP END CONTINUING 6 AM 2 PM
MIXING HGT(M-AGL/MSL) 720 1040
MIXING HGT(FT-AGL/MSL)2370 3420
TRANSPORT WND (MPH) W 13 N 9
VENT RATE (KT-FT) 26070 27360
CATEGORY DAY 3 3
INVERSION 72F/10AM 7PM 67F/10AM
DISPERSION 3 3
MAX ADI EARLY 21 FAIR 5 VERY POOR 18 GEN POOR
MAX ADI LATE 25 FAIR 4 VERY POOR 40 FAIR
MAX LVORI EARLY 7 9 9
MAX LVORI LATE 4 9 5
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ513-172015-
WESTERN TUCKER-
INCLUDING THE CITIES OF PARSONS, HENDRICKS, AND SAINT GEORGE
1249 AM EDT THU SEP 17 2026
TODAY TONIGHT FRI
CLOUD COVER PCLDY MCLDY PCLDY
PRECIP TYPE TSTMS TSTMS SHOWERS
CHANCE PRECIP (%) 90 60 20
CHANCE OF THUNDER (%) 30 30 0
TEMP (24H TREND) 83 (-5) 65 (+1) 79
RH % (24H TREND) 71 (+7) 100 (+5) 72
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR
PRECIP AMOUNT 0.24 0.10 0.01
PRECIP DURATION 4 4 1
PRECIP BEGIN 6 AM CONTINUING CONTINUING
PRECIP END CONTINUING CONTINUING 6 PM
MIXING HGT(M-AGL/MSL) 800 1050
MIXING HGT(FT-AGL/MSL)2620 3440
TRANSPORT WND (MPH) W 13 N 8
VENT RATE (KT-FT) 28820 24080
CATEGORY DAY 3 3
INVERSION 73F/10AM 6PM 68F/10AM
DISPERSION 3 3
MAX ADI EARLY 27 FAIR 4 VERY POOR 15 GEN POOR
MAX ADI LATE 27 FAIR 3 VERY POOR 33 FAIR
MAX LVORI EARLY 6 9 9
MAX LVORI LATE 3 9 4
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ514-172015-
EASTERN TUCKER-
INCLUDING THE CITIES OF DAVIS, THOMAS, AND CANAAN VALLEY
1249 AM EDT THU SEP 17 2026
TODAY TONIGHT FRI
CLOUD COVER PCLDY MCLDY MCLDY
PRECIP TYPE TSTMS TSTMS SHOWERS
CHANCE PRECIP (%) 80 40 30
CHANCE OF THUNDER (%) 30 20 0
TEMP (24H TREND) 79 (-3) 60 (0) 74
RH % (24H TREND) 74 (+14) 100 (+3) 80
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) W 5 LGT/VAR LGT/VAR
PRECIP AMOUNT 0.23 0.05 0.00
PRECIP DURATION 3 2 2
PRECIP BEGIN 6 AM CONTINUING CONTINUING
PRECIP END CONTINUING CONTINUING 6 PM
MIXING HGT(M-AGL/MSL) 800 980
MIXING HGT(FT-AGL/MSL)2620 3200
TRANSPORT WND (MPH) W 15 N 8
VENT RATE (KT-FT) 34060 22400
CATEGORY DAY 3 2
INVERSION 72F/10AM 7PM 66F/10AM
DISPERSION 3 2
MAX ADI EARLY 33 FAIR 9 POOR 18 GEN POOR
MAX ADI LATE 35 FAIR 5 VERY POOR 28 FAIR
MAX LVORI EARLY 6 9 9
MAX LVORI LATE 4 9 5
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
FORECAST FOR DAYS 3 THROUGH 7
SATURDAY
PARTLY CLOUDY. LOWS IN THE UPPER 50S. HIGHS IN THE
UPPER 70S. NORTHEAST WINDS AROUND 5 MPH.
SUNDAY
SHOWERS AND A CHANCE OF THUNDERSTORMS. LOWS IN THE MID
60S. HIGHS IN THE UPPER 70S. SOUTHWEST WINDS 10 TO 15 MPH.
MONDAY
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN THE
LOWER 60S. HIGHS IN THE MID 70S. EAST WINDS 5 TO 10 MPH.
TUESDAY
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN THE
LOWER 60S. HIGHS IN THE MID 70S. EAST WINDS 10 TO 15 MPH.
WEDNESDAY
MOSTLY CLOUDY. A CHANCE OF SHOWERS. LOWS AROUND 60.
HIGHS IN THE LOWER 70S. SOUTHEAST WINDS 15 TO 20 MPH.
SHALLENBERGER
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