520
FNUS51 KPBZ 200443
FWFPBZ
FIRE WEATHER PLANNING FORECAST
NATIONAL WEATHER SERVICE PITTSBURGH PA
1243 AM EDT SUN SEP 20 2026
DISCUSSION
A DISTURBANCE IS EXPECTED TO CROSS THE AREA TODAY. EXPECT A FEW
ROUNDS OF SHOWERS AND THUNDERSTORMS. THIS WILL BE FOLLOWED BY WET
WEATHER THROUGH MIDWEEK. NO FIRE WEATHER CONCERNS ARE EXPECTED.
OHZ039-202015-
TUSCARAWAS-
INCLUDING THE CITIES OF NEW PHILADELPHIA AND DOVER
1243 AM EDT SUN SEP 20 2026
TODAY TONIGHT MON
CLOUD COVER MCLDY MCLDY MCLDY
PRECIP TYPE TSTMS TSTMS SHOWERS
CHANCE PRECIP (%) 90 60 60
CHANCE OF THUNDER (%) 40 40 0
TEMP (24H TREND) 77 (+4) 56 (-7) 67
RH % (24H TREND) 80 (+6) 100 (0) 71
WIND 20FT/EARLY(MPH) LGT/VAR NE 7 NE 8 G17
WIND 20FT/LATE(MPH) LGT/VAR NE 7 NE 9
PRECIP AMOUNT 0.42 0.12 0.21
PRECIP DURATION 8 4 3
PRECIP BEGIN 6 AM CONTINUING CONTINUING
PRECIP END CONTINUING CONTINUING CONTINUING
MIXING HGT(M-AGL/MSL) 700 650
MIXING HGT(FT-AGL/MSL)2280 2130
TRANSPORT WND (MPH) NW 6 NE 14
VENT RATE (KT-FT) 11400 25560
CATEGORY DAY 2 2
INVERSION 70F/10AM 7PM 58F/7AM
DISPERSION 2 2
MAX ADI EARLY 12 POOR 12 POOR 25 FAIR
MAX ADI LATE 12 POOR 12 POOR 30 FAIR
MAX LVORI EARLY 9 7 5
MAX LVORI LATE 5 7 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ040-202015-
CARROLL-
INCLUDING THE CITIES OF CARROLLTON AND MALVERN
1243 AM EDT SUN SEP 20 2026
TODAY TONIGHT MON
CLOUD COVER MCLDY MCLDY MCLDY
PRECIP TYPE TSTMS TSTMS SHOWERS
CHANCE PRECIP (%) 90 60 50
CHANCE OF THUNDER (%) 40 40 0
TEMP (24H TREND) 76 (+5) 55 (-7) 66
RH % (24H TREND) 82 (+6) 99 (-1) 71
WIND 20FT/EARLY(MPH) LGT/VAR NE 7 NE 9 G18
WIND 20FT/LATE(MPH) NW 5 NE 8 NE 10 G17
PRECIP AMOUNT 0.38 0.09 0.13
PRECIP DURATION 8 3 2
PRECIP BEGIN 6 AM CONTINUING CONTINUING
PRECIP END CONTINUING CONTINUING CONTINUING
MIXING HGT(M-AGL/MSL) 640 670
MIXING HGT(FT-AGL/MSL)2090 2200
TRANSPORT WND (MPH) NW 7 E 15
VENT RATE (KT-FT) 12540 28600
CATEGORY DAY 1 3
INVERSION 68F/9AM 8PM 57F/8AM
DISPERSION 1 3
MAX ADI EARLY 13 GEN POOR 12 POOR 28 FAIR
MAX ADI LATE 14 GEN POOR 12 POOR 29 FAIR
MAX LVORI EARLY 8 7 5
MAX LVORI LATE 5 7 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ041-202015-
COLUMBIANA-
INCLUDING THE CITIES OF EAST LIVERPOOL, SALEM, AND COLUMBIANA
1243 AM EDT SUN SEP 20 2026
TODAY TONIGHT MON
CLOUD COVER MCLDY MCLDY MCLDY
PRECIP TYPE TSTMS TSTMS SHOWERS
CHANCE PRECIP (%) 90 50 40
CHANCE OF THUNDER (%) 30 30 0
TEMP (24H TREND) 74 (+4) 55 (-6) 66
RH % (24H TREND) 83 (+2) 99 (-1) 69
WIND 20FT/EARLY(MPH) LGT/VAR NE 7 NE 8 G17
WIND 20FT/LATE(MPH) LGT/VAR NE 7 NE 9
PRECIP AMOUNT 0.37 0.07 0.09
PRECIP DURATION 7 2 1
PRECIP BEGIN 6 AM CONTINUING CONTINUING
PRECIP END CONTINUING CONTINUING CONTINUING
MIXING HGT(M-AGL/MSL) 670 700
MIXING HGT(FT-AGL/MSL)2210 2310
TRANSPORT WND (MPH) NW 8 E 15
VENT RATE (KT-FT) 15470 30030
CATEGORY DAY 2 3
INVERSION 69F/10AM 9PM 57F/9AM
DISPERSION 2 3
MAX ADI EARLY 14 GEN POOR 12 POOR 31 FAIR
MAX ADI LATE 17 GEN POOR 12 POOR 31 FAIR
MAX LVORI EARLY 8 7 5
MAX LVORI LATE 5 7 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ048-202015-
COSHOCTON-
INCLUDING THE CITY OF COSHOCTON
1243 AM EDT SUN SEP 20 2026
TODAY TONIGHT MON
CLOUD COVER MCLDY MCLDY MCLDY
PRECIP TYPE TSTMS TSTMS SHOWERS
CHANCE PRECIP (%) 100 70 70
CHANCE OF THUNDER (%) 50 50 0
TEMP (24H TREND) 78 (+2) 56 (-7) 66
RH % (24H TREND) 80 (+9) 100 (0) 76
WIND 20FT/EARLY(MPH) LGT/VAR NE 6 NE 8
WIND 20FT/LATE(MPH) LGT/VAR NE 6 NE 8
PRECIP AMOUNT 0.51 0.13 0.29
PRECIP DURATION 7 5 4
PRECIP BEGIN 6 AM CONTINUING CONTINUING
PRECIP END CONTINUING CONTINUING CONTINUING
MIXING HGT(M-AGL/MSL) 740 720
MIXING HGT(FT-AGL/MSL)2440 2360
TRANSPORT WND (MPH) W 6 NE 13
VENT RATE (KT-FT) 12200 25960
CATEGORY DAY 2 3
INVERSION 70F/10AM 7PM 60F/4AM
DISPERSION 2 3
MAX ADI EARLY 12 POOR 12 POOR 21 FAIR
MAX ADI LATE 15 GEN POOR 12 POOR 28 FAIR
MAX LVORI EARLY 9 7 5
MAX LVORI LATE 5 8 4
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ049-202015-
HARRISON-
INCLUDING THE CITY OF CADIZ
1243 AM EDT SUN SEP 20 2026
TODAY TONIGHT MON
CLOUD COVER MCLDY MCLDY MCLDY
PRECIP TYPE TSTMS TSTMS SHOWERS
CHANCE PRECIP (%) 90 70 60
CHANCE OF THUNDER (%) 40 40 0
TEMP (24H TREND) 77 (+2) 56 (-7) 67
RH % (24H TREND) 80 (+6) 100 (0) 72
WIND 20FT/EARLY(MPH) LGT/VAR NE 6 NE 9 G17
WIND 20FT/LATE(MPH) W 5 NE 7 NE 9 G17
PRECIP AMOUNT 0.41 0.14 0.18
PRECIP DURATION 8 5 6
PRECIP BEGIN 6 AM CONTINUING CONTINUING
PRECIP END CONTINUING CONTINUING CONTINUING
MIXING HGT(M-AGL/MSL) 660 600
MIXING HGT(FT-AGL/MSL)2180 1960
TRANSPORT WND (MPH) W 7 E 14
VENT RATE (KT-FT) 13080 23520
CATEGORY DAY 1 2
INVERSION 69F/9AM 7PM 58F/8AM
DISPERSION 1 2
MAX ADI EARLY 14 GEN POOR 11 POOR 22 FAIR
MAX ADI LATE 14 GEN POOR 11 POOR 26 FAIR
MAX LVORI EARLY 8 8 5
MAX LVORI LATE 5 8 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ050-202015-
JEFFERSON OH-
INCLUDING THE CITY OF STEUBENVILLE
1243 AM EDT SUN SEP 20 2026
TODAY TONIGHT MON
CLOUD COVER MCLDY MCLDY MCLDY
PRECIP TYPE TSTMS TSTMS SHOWERS
CHANCE PRECIP (%) 90 70 60
CHANCE OF THUNDER (%) 40 40 0
TEMP (24H TREND) 77 (+4) 56 (-6) 66
RH % (24H TREND) 81 (+4) 100 (0) 70
WIND 20FT/EARLY(MPH) SW 5 NE 6 NE 9 G17
WIND 20FT/LATE(MPH) W 5 NE 7 NE 9
PRECIP AMOUNT 0.41 0.12 0.17
PRECIP DURATION 9 3 3
PRECIP BEGIN 6 AM CONTINUING CONTINUING
PRECIP END CONTINUING CONTINUING CONTINUING
MIXING HGT(M-AGL/MSL) 650 620
MIXING HGT(FT-AGL/MSL)2130 2020
TRANSPORT WND (MPH) W 7 NE 13
VENT RATE (KT-FT) 12780 22220
CATEGORY DAY 1 2
INVERSION 69F/9AM 7PM 58F/8AM
DISPERSION 1 2
MAX ADI EARLY 15 GEN POOR 10 POOR 23 FAIR
MAX ADI LATE 15 GEN POOR 10 POOR 26 FAIR
MAX LVORI EARLY 8 7 5
MAX LVORI LATE 5 8 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ057-202015-
MUSKINGUM-
INCLUDING THE CITY OF ZANESVILLE
1243 AM EDT SUN SEP 20 2026
TODAY TONIGHT MON
CLOUD COVER MCLDY MCLDY MCLDY
PRECIP TYPE TSTMS TSTMS SHOWERS
CHANCE PRECIP (%) 90 70 80
CHANCE OF THUNDER (%) 50 50 0
TEMP (24H TREND) 80 (0) 58 (-6) 68
RH % (24H TREND) 75 (+7) 100 (0) 80
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR NE 6
WIND 20FT/LATE(MPH) LGT/VAR NE 5 NE 6
PRECIP AMOUNT 0.49 0.18 0.25
PRECIP DURATION 7 6 5
PRECIP BEGIN 6 AM CONTINUING CONTINUING
PRECIP END CONTINUING CONTINUING CONTINUING
MIXING HGT(M-AGL/MSL) 780 670
MIXING HGT(FT-AGL/MSL)2570 2190
TRANSPORT WND (MPH) W 6 NE 12
VENT RATE (KT-FT) 12850 21900
CATEGORY DAY 2 2
INVERSION 73F/11AM 7PM 60F/8AM
DISPERSION 2 2
MAX ADI EARLY 11 POOR 9 POOR 18 GEN POOR
MAX ADI LATE 16 GEN POOR 8 POOR 24 FAIR
MAX LVORI EARLY 9 8 5
MAX LVORI LATE 5 8 4
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ058-202015-
GUERNSEY-
INCLUDING THE CITY OF CAMBRIDGE
1243 AM EDT SUN SEP 20 2026
TODAY TONIGHT MON
CLOUD COVER MCLDY MCLDY MCLDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 90 70 80
CHANCE OF THUNDER (%) 40 40 20
TEMP (24H TREND) 79 (0) 58 (-6) 69
RH % (24H TREND) 77 (+11) 100 (0) 73
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR NE 7
WIND 20FT/LATE(MPH) LGT/VAR NE 5 NE 8
PRECIP AMOUNT 0.39 0.14 0.22
PRECIP DURATION 7 6 6
PRECIP BEGIN 6 AM CONTINUING CONTINUING
PRECIP END CONTINUING CONTINUING CONTINUING
MIXING HGT(M-AGL/MSL) 770 650
MIXING HGT(FT-AGL/MSL)2510 2140
TRANSPORT WND (MPH) W 7 NE 12
VENT RATE (KT-FT) 15060 21400
CATEGORY DAY 2 2
INVERSION 71F/10AM 7PM 60F/8AM
DISPERSION 2 2
MAX ADI EARLY 13 GEN POOR 8 POOR 20 GEN POOR
MAX ADI LATE 15 GEN POOR 8 POOR 23 FAIR
MAX LVORI EARLY 9 9 5
MAX LVORI LATE 5 8 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ059-202015-
BELMONT-
INCLUDING THE CITIES OF MARTINS FERRY AND ST. CLAIRSVILLE
1243 AM EDT SUN SEP 20 2026
TODAY TONIGHT MON
CLOUD COVER MCLDY MCLDY MCLDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 90 60 70
CHANCE OF THUNDER (%) 40 40 20
TEMP (24H TREND) 79 (0) 58 (-6) 69
RH % (24H TREND) 78 (+12) 100 (0) 74
WIND 20FT/EARLY(MPH) SW 5 NE 5 NE 8 G17
WIND 20FT/LATE(MPH) LGT/VAR NE 7 NE 9
PRECIP AMOUNT 0.38 0.14 0.24
PRECIP DURATION 7 5 4
PRECIP BEGIN 6 AM CONTINUING CONTINUING
PRECIP END CONTINUING CONTINUING CONTINUING
MIXING HGT(M-AGL/MSL) 720 540
MIXING HGT(FT-AGL/MSL)2360 1760
TRANSPORT WND (MPH) W 7 NE 12
VENT RATE (KT-FT) 14160 17600
CATEGORY DAY 2 2
INVERSION 71F/10AM 7PM 60F/8AM
DISPERSION 2 2
MAX ADI EARLY 15 GEN POOR 9 POOR 19 GEN POOR
MAX ADI LATE 16 GEN POOR 9 POOR 23 FAIR
MAX LVORI EARLY 8 9 5
MAX LVORI LATE 5 8 4
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ068-202015-
NOBLE-
INCLUDING THE CITY OF CALDWELL
1243 AM EDT SUN SEP 20 2026
TODAY TONIGHT MON
CLOUD COVER MCLDY MCLDY MCLDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 80 70 70
CHANCE OF THUNDER (%) 40 40 20
TEMP (24H TREND) 80 (-1) 60 (-4) 70
RH % (24H TREND) 77 (+14) 100 (0) 79
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR NE 6
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR NE 6
PRECIP AMOUNT 0.42 0.17 0.27
PRECIP DURATION 7 5 5
PRECIP BEGIN 6 AM CONTINUING CONTINUING
PRECIP END CONTINUING CONTINUING CONTINUING
MIXING HGT(M-AGL/MSL) 730 590
MIXING HGT(FT-AGL/MSL)2390 1940
TRANSPORT WND (MPH) W 6 NE 10
VENT RATE (KT-FT) 11950 17460
CATEGORY DAY 2 2
INVERSION 73F/11AM 7PM 62F/8AM
DISPERSION 2 2
MAX ADI EARLY 12 POOR 6 VERY POOR 16 GEN POOR
MAX ADI LATE 15 GEN POOR 7 POOR 19 GEN POOR
MAX LVORI EARLY 9 9 6
MAX LVORI LATE 5 8 4
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ069-202015-
MONROE-
INCLUDING THE CITY OF WOODSFIELD
1243 AM EDT SUN SEP 20 2026
TODAY TONIGHT MON
CLOUD COVER MCLDY MCLDY MCLDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 80 70 70
CHANCE OF THUNDER (%) 40 40 20
TEMP (24H TREND) 80 (-2) 61 (-3) 72
RH % (24H TREND) 77 (+14) 100 (0) 80
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR NE 6
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR NE 6
PRECIP AMOUNT 0.34 0.17 0.34
PRECIP DURATION 8 5 3
PRECIP BEGIN 6 AM CONTINUING CONTINUING
PRECIP END CONTINUING CONTINUING 5 PM
MIXING HGT(M-AGL/MSL) 740 520
MIXING HGT(FT-AGL/MSL)2420 1720
TRANSPORT WND (MPH) W 7 NE 9
VENT RATE (KT-FT) 14520 13760
CATEGORY DAY 2 2
INVERSION 72F/11AM 7PM 63F/9AM
DISPERSION 2 2
MAX ADI EARLY 12 POOR 6 VERY POOR 15 GEN POOR
MAX ADI LATE 16 GEN POOR 7 POOR 19 GEN POOR
MAX LVORI EARLY 8 9 7
MAX LVORI LATE 5 9 4
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ007-202015-
MERCER-
INCLUDING THE CITIES OF SHARON, HERMITAGE, AND GROVE CITY
1243 AM EDT SUN SEP 20 2026
TODAY TONIGHT MON
CLOUD COVER MCLDY MCLDY MCLDY
PRECIP TYPE TSTMS SHOWERS NONE
CHANCE PRECIP (%) 70 20 0
CHANCE OF THUNDER (%) 20 0 0
TEMP (24H TREND) 73 (+3) 52 (-8) 67
RH % (24H TREND) 84 (+11) 99 (-1) 65
WIND 20FT/EARLY(MPH) LGT/VAR NE 7 NE 9
WIND 20FT/LATE(MPH) N 5 NE 7 NE 9
PRECIP AMOUNT 0.19 0.01 0.00
PRECIP DURATION 6 0
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 8 PM
MIXING HGT(M-AGL/MSL) 610 830
MIXING HGT(FT-AGL/MSL)2010 2720
TRANSPORT WND (MPH) N 8 E 15
VENT RATE (KT-FT) 14070 35360
CATEGORY DAY 2 3
INVERSION 68F/10AM 8PM 56F/9AM
DISPERSION 2 3
MAX ADI EARLY 12 POOR 11 POOR 33 FAIR
MAX ADI LATE 19 GEN POOR 11 POOR 35 FAIR
MAX LVORI EARLY 9 7 5
MAX LVORI LATE 5 7 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ008-202015-
VENANGO-
INCLUDING THE CITIES OF OIL CITY AND FRANKLIN
1243 AM EDT SUN SEP 20 2026
TODAY TONIGHT MON
CLOUD COVER MCLDY MCLDY MCLDY
PRECIP TYPE SHOWERS NONE NONE
CHANCE PRECIP (%) 70 0 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 72 (+5) 50 (-9) 67
RH % (24H TREND) 87 (+13) 100 (0) 63
WIND 20FT/EARLY(MPH) LGT/VAR NE 5 NE 7
WIND 20FT/LATE(MPH) LGT/VAR NE 6 E 7
PRECIP AMOUNT 0.18 0.00 0.00
PRECIP DURATION 5
PRECIP BEGIN 6 AM
PRECIP END 6 PM
MIXING HGT(M-AGL/MSL) 580 880
MIXING HGT(FT-AGL/MSL)1910 2890
TRANSPORT WND (MPH) N 8 E 14
VENT RATE (KT-FT) 13370 34680
CATEGORY DAY 2 3
INVERSION 67F/11AM 7PM 53F/9AM
DISPERSION 2 3
MAX ADI EARLY 12 POOR 8 POOR 31 FAIR
MAX ADI LATE 17 GEN POOR 8 POOR 33 FAIR
MAX LVORI EARLY 9 8 5
MAX LVORI LATE 6 7 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ009-202015-
FOREST-
INCLUDING THE CITY OF TIONESTA
1243 AM EDT SUN SEP 20 2026
TODAY TONIGHT MON
CLOUD COVER MCLDY MCLDY MCLDY
PRECIP TYPE SHOWERS NONE NONE
CHANCE PRECIP (%) 70 0 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 71 (+4) 46 (-11) 67
RH % (24H TREND) 81 (+15) 99 (-1) 57
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR NE 5
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR E 5
PRECIP AMOUNT 0.17 0.00 0.00
PRECIP DURATION 5
PRECIP BEGIN 6 AM
PRECIP END 6 PM
MIXING HGT(M-AGL/MSL) 600 920
MIXING HGT(FT-AGL/MSL)1980 3010
TRANSPORT WND (MPH) N 8 E 14
VENT RATE (KT-FT) 13860 36120
CATEGORY DAY 2 3
INVERSION 65F/10AM 7PM 52F/9AM
DISPERSION 2 3
MAX ADI EARLY 12 POOR 7 POOR 30 FAIR
MAX ADI LATE 18 GEN POOR 8 POOR 32 FAIR
MAX LVORI EARLY 9 8 5
MAX LVORI LATE 5 6 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ013-202015-
LAWRENCE-
INCLUDING THE CITIES OF NEW CASTLE AND ELLWOOD CITY
1243 AM EDT SUN SEP 20 2026
TODAY TONIGHT MON
CLOUD COVER MCLDY MCLDY MCLDY
PRECIP TYPE TSTMS TSTMS NONE
CHANCE PRECIP (%) 90 20 0
CHANCE OF THUNDER (%) 20 20 0
TEMP (24H TREND) 74 (+3) 53 (-8) 68
RH % (24H TREND) 83 (+7) 100 (0) 64
WIND 20FT/EARLY(MPH) LGT/VAR N 5 NE 8
WIND 20FT/LATE(MPH) LGT/VAR NE 5 E 8
PRECIP AMOUNT 0.32 0.04 0.00
PRECIP DURATION 6 1
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 3 AM
MIXING HGT(M-AGL/MSL) 630 780
MIXING HGT(FT-AGL/MSL)2060 2540
TRANSPORT WND (MPH) NW 8 E 15
VENT RATE (KT-FT) 14420 33020
CATEGORY DAY 2 3
INVERSION 69F/10AM 8PM 57F/9AM
DISPERSION 2 3
MAX ADI EARLY 13 GEN POOR 8 POOR 32 FAIR
MAX ADI LATE 17 GEN POOR 11 POOR 32 FAIR
MAX LVORI EARLY 8 8 5
MAX LVORI LATE 5 8 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ014-202015-
BUTLER-
INCLUDING THE CITY OF BUTLER
1243 AM EDT SUN SEP 20 2026
TODAY TONIGHT MON
CLOUD COVER MCLDY MCLDY MCLDY
PRECIP TYPE TSTMS SHOWERS NONE
CHANCE PRECIP (%) 90 30 0
CHANCE OF THUNDER (%) 20 0 0
TEMP (24H TREND) 74 (+5) 51 (-9) 67
RH % (24H TREND) 86 (+8) 100 (0) 68
WIND 20FT/EARLY(MPH) LGT/VAR N 5 NE 9
WIND 20FT/LATE(MPH) NW 5 NE 7 E 8
PRECIP AMOUNT 0.25 0.05 0.00
PRECIP DURATION 7 1
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 5 AM
MIXING HGT(M-AGL/MSL) 640 730
MIXING HGT(FT-AGL/MSL)2110 2390
TRANSPORT WND (MPH) NW 9 E 15
VENT RATE (KT-FT) 16880 31070
CATEGORY DAY 2 3
INVERSION 67F/9AM 8PM 56F/9AM
DISPERSION 2 3
MAX ADI EARLY 13 GEN POOR 8 POOR 31 FAIR
MAX ADI LATE 17 GEN POOR 12 POOR 33 FAIR
MAX LVORI EARLY 8 9 5
MAX LVORI LATE 5 8 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ015-202015-
CLARION-
INCLUDING THE CITY OF CLARION
1243 AM EDT SUN SEP 20 2026
TODAY TONIGHT MON
CLOUD COVER MCLDY MCLDY MCLDY
PRECIP TYPE TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 70 20 20
CHANCE OF THUNDER (%) 20 0 0
TEMP (24H TREND) 74 (+7) 50 (-9) 67
RH % (24H TREND) 82 (+12) 99 (-1) 59
WIND 20FT/EARLY(MPH) LGT/VAR N 5 NE 7
WIND 20FT/LATE(MPH) LGT/VAR NE 6 E 6
PRECIP AMOUNT 0.21 0.01 0.03
PRECIP DURATION 7 0 0
PRECIP BEGIN 6 AM CONTINUING 2 PM
PRECIP END CONTINUING 8 PM 5 PM
MIXING HGT(M-AGL/MSL) 610 820
MIXING HGT(FT-AGL/MSL)1990 2680
TRANSPORT WND (MPH) N 8 E 14
VENT RATE (KT-FT) 13930 32160
CATEGORY DAY 2 3
INVERSION 66F/9AM 7PM 54F/9AM
DISPERSION 2 3
MAX ADI EARLY 13 GEN POOR 8 POOR 28 FAIR
MAX ADI LATE 17 GEN POOR 8 POOR 31 FAIR
MAX LVORI EARLY 9 7 5
MAX LVORI LATE 5 7 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ016-202015-
JEFFERSON PA-
INCLUDING THE CITIES OF PUNXSUTAWNEY AND BROOKVILLE
1243 AM EDT SUN SEP 20 2026
TODAY TONIGHT MON
CLOUD COVER MCLDY MCLDY MCLDY
PRECIP TYPE TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 90 20 30
CHANCE OF THUNDER (%) 20 0 0
TEMP (24H TREND) 72 (+6) 48 (-10) 66
RH % (24H TREND) 83 (+14) 97 (-3) 60
WIND 20FT/EARLY(MPH) LGT/VAR N 5 NE 7 G17
WIND 20FT/LATE(MPH) LGT/VAR NE 6 E 7
PRECIP AMOUNT 0.19 0.02 0.03
PRECIP DURATION 7 0 1
PRECIP BEGIN 6 AM CONTINUING 2 PM
PRECIP END CONTINUING 8 PM CONTINUING
MIXING HGT(M-AGL/MSL) 600 770
MIXING HGT(FT-AGL/MSL)1970 2510
TRANSPORT WND (MPH) NW 9 E 14
VENT RATE (KT-FT) 15760 30120
CATEGORY DAY 2 3
INVERSION 65F/9AM 7PM 53F/9AM
DISPERSION 2 3
MAX ADI EARLY 14 GEN POOR 8 POOR 27 FAIR
MAX ADI LATE 17 GEN POOR 10 POOR 29 FAIR
MAX LVORI EARLY 8 6 5
MAX LVORI LATE 5 6 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ020-202015-
BEAVER-
INCLUDING THE CITIES OF ALIQUIPPA, BEAVER FALLS, AMBRIDGE,
AND MONACA
1243 AM EDT SUN SEP 20 2026
TODAY TONIGHT MON
CLOUD COVER MCLDY MCLDY MCLDY
PRECIP TYPE TSTMS TSTMS SHOWERS
CHANCE PRECIP (%) 90 40 40
CHANCE OF THUNDER (%) 30 30 0
TEMP (24H TREND) 75 (+5) 55 (-7) 67
RH % (24H TREND) 85 (+4) 99 (-1) 71
WIND 20FT/EARLY(MPH) LGT/VAR N 5 NE 8 G17
WIND 20FT/LATE(MPH) LGT/VAR NE 6 NE 8
PRECIP AMOUNT 0.33 0.08 0.07
PRECIP DURATION 7 2 2
PRECIP BEGIN 6 AM CONTINUING CONTINUING
PRECIP END CONTINUING CONTINUING CONTINUING
MIXING HGT(M-AGL/MSL) 680 740
MIXING HGT(FT-AGL/MSL)2220 2410
TRANSPORT WND (MPH) NW 8 E 14
VENT RATE (KT-FT) 15540 28920
CATEGORY DAY 2 3
INVERSION 68F/9AM 7PM 57F/6AM
DISPERSION 2 3
MAX ADI EARLY 15 GEN POOR 8 POOR 28 FAIR
MAX ADI LATE 16 GEN POOR 11 POOR 29 FAIR
MAX LVORI EARLY 8 7 5
MAX LVORI LATE 5 7 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ021-202015-
ALLEGHENY-
INCLUDING THE CITY OF PITTSBURGH METRO AREA
1243 AM EDT SUN SEP 20 2026
TODAY TONIGHT MON
CLOUD COVER MCLDY MCLDY MCLDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 90 50 60
CHANCE OF THUNDER (%) 30 30 20
TEMP (24H TREND) 76 (+4) 55 (-8) 68
RH % (24H TREND) 86 (+9) 100 (0) 73
WIND 20FT/EARLY(MPH) SW 6 N 6 NE 10
WIND 20FT/LATE(MPH) W 7 NE 7 NE 10
PRECIP AMOUNT 0.37 0.08 0.10
PRECIP DURATION 9 2 3
PRECIP BEGIN 6 AM CONTINUING CONTINUING
PRECIP END CONTINUING CONTINUING CONTINUING
MIXING HGT(M-AGL/MSL) 640 600
MIXING HGT(FT-AGL/MSL)2100 1980
TRANSPORT WND (MPH) NW 8 E 14
VENT RATE (KT-FT) 14700 23760
CATEGORY DAY 2 2
INVERSION 70F/10AM 7PM 58F/8AM
DISPERSION 2 2
MAX ADI EARLY 16 GEN POOR 9 POOR 25 FAIR
MAX ADI LATE 18 GEN POOR 11 POOR 26 FAIR
MAX LVORI EARLY 8 8 5
MAX LVORI LATE 5 8 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ022-202015-
ARMSTRONG-
INCLUDING THE CITIES OF KITTANNING AND FORD CITY
1243 AM EDT SUN SEP 20 2026
TODAY TONIGHT MON
CLOUD COVER MCLDY MCLDY MCLDY
PRECIP TYPE TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 90 30 30
CHANCE OF THUNDER (%) 20 0 0
TEMP (24H TREND) 76 (+6) 52 (-8) 67
RH % (24H TREND) 86 (+13) 100 (0) 67
WIND 20FT/EARLY(MPH) SW 5 N 5 NE 8
WIND 20FT/LATE(MPH) W 5 NE 7 E 8
PRECIP AMOUNT 0.30 0.05 0.04
PRECIP DURATION 9 1 1
PRECIP BEGIN 6 AM CONTINUING 1 PM
PRECIP END CONTINUING 4 AM CONTINUING
MIXING HGT(M-AGL/MSL) 630 720
MIXING HGT(FT-AGL/MSL)2060 2380
TRANSPORT WND (MPH) NW 9 E 15
VENT RATE (KT-FT) 16480 30940
CATEGORY DAY 2 3
INVERSION 67F/9AM 7PM 56F/9AM
DISPERSION 2 3
MAX ADI EARLY 16 GEN POOR 8 POOR 28 FAIR
MAX ADI LATE 17 GEN POOR 11 POOR 30 FAIR
MAX LVORI EARLY 8 8 5
MAX LVORI LATE 5 8 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ029-202015-
WASHINGTON-
INCLUDING THE CITIES OF WASHINGTON AND CANONSBURG
1243 AM EDT SUN SEP 20 2026
TODAY TONIGHT MON
CLOUD COVER MCLDY MCLDY MCLDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 90 70 60
CHANCE OF THUNDER (%) 40 40 20
TEMP (24H TREND) 76 (+1) 57 (-6) 67
RH % (24H TREND) 84 (+9) 99 (-1) 76
WIND 20FT/EARLY(MPH) SW 7 N 5 NE 10 G18
WIND 20FT/LATE(MPH) W 7 NE 7 NE 10
PRECIP AMOUNT 0.42 0.12 0.21
PRECIP DURATION 10 4 4
PRECIP BEGIN 6 AM CONTINUING CONTINUING
PRECIP END CONTINUING CONTINUING CONTINUING
MIXING HGT(M-AGL/MSL) 630 530
MIXING HGT(FT-AGL/MSL)2070 1750
TRANSPORT WND (MPH) W 9 NE 13
VENT RATE (KT-FT) 16560 19250
CATEGORY DAY 2 2
INVERSION 70F/10AM 7PM 59F/8AM
DISPERSION 2 2
MAX ADI EARLY 17 GEN POOR 8 POOR 19 GEN POOR
MAX ADI LATE 19 GEN POOR 10 POOR 23 FAIR
MAX LVORI EARLY 8 9 5
MAX LVORI LATE 5 8 4
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ031-202015-
GREENE-
INCLUDING THE CITY OF WAYNESBURG
1243 AM EDT SUN SEP 20 2026
TODAY TONIGHT MON
CLOUD COVER MCLDY MCLDY MCLDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 90 70 70
CHANCE OF THUNDER (%) 40 40 30
TEMP (24H TREND) 77 (-2) 59 (-4) 70
RH % (24H TREND) 84 (+13) 100 (0) 83
WIND 20FT/EARLY(MPH) SW 6 LGT/VAR NE 7
WIND 20FT/LATE(MPH) SW 6 NE 5 NE 8
PRECIP AMOUNT 0.42 0.17 0.35
PRECIP DURATION 9 7 4
PRECIP BEGIN 6 AM CONTINUING CONTINUING
PRECIP END CONTINUING CONTINUING 6 PM
MIXING HGT(M-AGL/MSL) 640 510
MIXING HGT(FT-AGL/MSL)2110 1660
TRANSPORT WND (MPH) W 9 NE 10
VENT RATE (KT-FT) 16880 14940
CATEGORY DAY 2 2
INVERSION 70F/10AM 7PM 62F/9AM
DISPERSION 2 2
MAX ADI EARLY 18 GEN POOR 5 VERY POOR 15 GEN POOR
MAX ADI LATE 21 FAIR 7 POOR 19 GEN POOR
MAX LVORI EARLY 7 9 7
MAX LVORI LATE 5 9 5
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ073-202015-
WESTMORELAND-
INCLUDING THE CITIES OF MURRYSVILLE, GREENSBURG, NEW KENSINGTON,
LOWER BURRELL, LATROBE, AND MONESSEN
1243 AM EDT SUN SEP 20 2026
TODAY TONIGHT MON
CLOUD COVER MCLDY MCLDY MCLDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 90 60 70
CHANCE OF THUNDER (%) 30 20 20
TEMP (24H TREND) 76 (+3) 55 (-7) 68
RH % (24H TREND) 87 (+12) 100 (0) 73
WIND 20FT/EARLY(MPH) SW 8 N 5 NE 10
WIND 20FT/LATE(MPH) W 8 NE 7 E 10
PRECIP AMOUNT 0.46 0.08 0.12
PRECIP DURATION 11 3 3
PRECIP BEGIN 6 AM CONTINUING 6 AM
PRECIP END CONTINUING 5 AM CONTINUING
MIXING HGT(M-AGL/MSL) 590 580
MIXING HGT(FT-AGL/MSL)1940 1910
TRANSPORT WND (MPH) W 10 E 14
VENT RATE (KT-FT) 17460 22920
CATEGORY DAY 2 2
INVERSION 68F/9AM 7PM 59F/9AM
DISPERSION 2 2
MAX ADI EARLY 19 GEN POOR 6 VERY POOR 20 GEN POOR
MAX ADI LATE 20 GEN POOR 10 POOR 24 FAIR
MAX LVORI EARLY 8 9 6
MAX LVORI LATE 5 8 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ074-202015-
HIGHER ELEVATIONS OF WESTMORELAND-
INCLUDING THE CITIES OF LIGONIER AND DONEGAL
1243 AM EDT SUN SEP 20 2026
TODAY TONIGHT MON
CLOUD COVER MCLDY MCLDY MCLDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 100 60 70
CHANCE OF THUNDER (%) 30 20 20
TEMP (24H TREND) 76 (+6) 55 (-6) 68
RH % (24H TREND) 83 (+13) 100 (0) 70
WIND 20FT/EARLY(MPH) SW 6 LGT/VAR E 6
WIND 20FT/LATE(MPH) W 6 LGT/VAR E 7
PRECIP AMOUNT 0.53 0.09 0.16
PRECIP DURATION 11 3 3
PRECIP BEGIN 6 AM CONTINUING 7 AM
PRECIP END CONTINUING 6 AM CONTINUING
MIXING HGT(M-AGL/MSL) 520 560
MIXING HGT(FT-AGL/MSL)1720 1840
TRANSPORT WND (MPH) W 12 E 13
VENT RATE (KT-FT) 17200 20240
CATEGORY DAY 2 2
INVERSION 67F/9AM 6PM 57F/9AM
DISPERSION 2 2
MAX ADI EARLY 19 GEN POOR 5 VERY POOR 19 GEN POOR
MAX ADI LATE 21 FAIR 7 POOR 23 FAIR
MAX LVORI EARLY 7 9 7
MAX LVORI LATE 5 9 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ075-202015-
FAYETTE-
INCLUDING THE CITY OF UNIONTOWN
1243 AM EDT SUN SEP 20 2026
TODAY TONIGHT MON
CLOUD COVER MCLDY MCLDY MCLDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 90 70 70
CHANCE OF THUNDER (%) 40 30 30
TEMP (24H TREND) 77 (-2) 59 (-5) 69
RH % (24H TREND) 84 (+13) 100 (0) 80
WIND 20FT/EARLY(MPH) SW 6 LGT/VAR NE 6
WIND 20FT/LATE(MPH) SW 6 LGT/VAR E 8
PRECIP AMOUNT 0.52 0.16 0.34
PRECIP DURATION 11 6 3
PRECIP BEGIN 6 AM CONTINUING CONTINUING
PRECIP END CONTINUING CONTINUING CONTINUING
MIXING HGT(M-AGL/MSL) 600 480
MIXING HGT(FT-AGL/MSL)1960 1590
TRANSPORT WND (MPH) W 10 E 10
VENT RATE (KT-FT) 17640 14310
CATEGORY DAY 2 2
INVERSION 70F/10AM 7PM 64F/10AM
DISPERSION 2 2
MAX ADI EARLY 18 GEN POOR 4 VERY POOR 15 GEN POOR
MAX ADI LATE 22 FAIR 6 VERY POOR 19 GEN POOR
MAX LVORI EARLY 7 9 8
MAX LVORI LATE 5 9 4
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ076-202015-
HIGHER ELEVATIONS OF FAYETTE-
INCLUDING THE CITIES OF CHAMPION AND OHIOPYLE
1243 AM EDT SUN SEP 20 2026
TODAY TONIGHT MON
CLOUD COVER MCLDY MCLDY MCLDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 100 70 80
CHANCE OF THUNDER (%) 30 30 30
TEMP (24H TREND) 75 (0) 56 (-5) 68
RH % (24H TREND) 79 (+11) 100 (0) 73
WIND 20FT/EARLY(MPH) SW 5 LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) W 5 LGT/VAR E 5
PRECIP AMOUNT 0.48 0.17 0.41
PRECIP DURATION 10 6 4
PRECIP BEGIN 6 AM CONTINUING CONTINUING
PRECIP END CONTINUING CONTINUING CONTINUING
MIXING HGT(M-AGL/MSL) 600 460
MIXING HGT(FT-AGL/MSL)1970 1500
TRANSPORT WND (MPH) W 14 E 14
VENT RATE (KT-FT) 23640 18000
CATEGORY DAY 2 2
INVERSION 66F/9AM 6PM 59F/9AM
DISPERSION 2 2
MAX ADI EARLY 18 GEN POOR 4 VERY POOR 17 GEN POOR
MAX ADI LATE 24 FAIR 4 VERY POOR 21 FAIR
MAX LVORI EARLY 6 10 8
MAX LVORI LATE 5 9 4
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ077-202015-
INDIANA-
INCLUDING THE CITY OF INDIANA
1243 AM EDT SUN SEP 20 2026
TODAY TONIGHT MON
CLOUD COVER MCLDY MCLDY MCLDY
PRECIP TYPE TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 100 30 40
CHANCE OF THUNDER (%) 20 0 0
TEMP (24H TREND) 75 (+5) 51 (-9) 67
RH % (24H TREND) 87 (+16) 100 (0) 68
WIND 20FT/EARLY(MPH) SW 6 LGT/VAR NE 8 G17
WIND 20FT/LATE(MPH) W 6 NE 6 E 8
PRECIP AMOUNT 0.39 0.04 0.05
PRECIP DURATION 9 1 1
PRECIP BEGIN 6 AM CONTINUING 8 AM
PRECIP END CONTINUING 4 AM CONTINUING
MIXING HGT(M-AGL/MSL) 590 660
MIXING HGT(FT-AGL/MSL)1930 2170
TRANSPORT WND (MPH) W 10 E 14
VENT RATE (KT-FT) 17370 26040
CATEGORY DAY 2 2
INVERSION 67F/9AM 7PM 54F/8AM
DISPERSION 2 2
MAX ADI EARLY 17 GEN POOR 7 POOR 26 FAIR
MAX ADI LATE 19 GEN POOR 11 POOR 28 FAIR
MAX LVORI EARLY 8 9 5
MAX LVORI LATE 5 8 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ078-202015-
HIGHER ELEVATIONS OF INDIANA-
INCLUDING THE CITY OF ARMAGH
1243 AM EDT SUN SEP 20 2026
TODAY TONIGHT MON
CLOUD COVER MCLDY MCLDY MCLDY
PRECIP TYPE TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 100 50 50
CHANCE OF THUNDER (%) 20 0 0
TEMP (24H TREND) 74 (+4) 53 (-7) 66
RH % (24H TREND) 88 (+18) 100 (0) 70
WIND 20FT/EARLY(MPH) SW 6 LGT/VAR E 7
WIND 20FT/LATE(MPH) W 6 NE 5 E 8
PRECIP AMOUNT 0.49 0.05 0.06
PRECIP DURATION 11 1 1
PRECIP BEGIN 6 AM CONTINUING 8 AM
PRECIP END CONTINUING 5 AM CONTINUING
MIXING HGT(M-AGL/MSL) 550 610
MIXING HGT(FT-AGL/MSL)1810 2010
TRANSPORT WND (MPH) W 10 E 14
VENT RATE (KT-FT) 16290 24120
CATEGORY DAY 2 2
INVERSION 67F/9AM 6PM 56F/9AM
DISPERSION 2 2
MAX ADI EARLY 18 GEN POOR 5 VERY POOR 24 FAIR
MAX ADI LATE 18 GEN POOR 9 POOR 27 FAIR
MAX LVORI EARLY 8 9 5
MAX LVORI LATE 5 8 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ001-202015-
HANCOCK-
INCLUDING THE CITY OF WEIRTON
1243 AM EDT SUN SEP 20 2026
TODAY TONIGHT MON
CLOUD COVER MCLDY MCLDY MCLDY
PRECIP TYPE TSTMS TSTMS SHOWERS
CHANCE PRECIP (%) 100 60 50
CHANCE OF THUNDER (%) 30 30 0
TEMP (24H TREND) 76 (+5) 56 (-7) 66
RH % (24H TREND) 84 (+3) 97 (-3) 70
WIND 20FT/EARLY(MPH) LGT/VAR N 6 NE 8 G17
WIND 20FT/LATE(MPH) LGT/VAR NE 6 NE 8
PRECIP AMOUNT 0.36 0.09 0.11
PRECIP DURATION 8 3 2
PRECIP BEGIN 6 AM CONTINUING CONTINUING
PRECIP END CONTINUING CONTINUING CONTINUING
MIXING HGT(M-AGL/MSL) 650 650
MIXING HGT(FT-AGL/MSL)2120 2120
TRANSPORT WND (MPH) NW 7 E 14
VENT RATE (KT-FT) 12720 25440
CATEGORY DAY 1 2
INVERSION 68F/9AM 7PM 59F/5AM
DISPERSION 1 2
MAX ADI EARLY 16 GEN POOR 10 POOR 26 FAIR
MAX ADI LATE 15 GEN POOR 11 POOR 27 FAIR
MAX LVORI EARLY 8 7 5
MAX LVORI LATE 5 7 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ002-202015-
BROOKE-
INCLUDING THE CITIES OF FOLLANSBEE AND WELLSBURG
1243 AM EDT SUN SEP 20 2026
TODAY TONIGHT MON
CLOUD COVER MCLDY MCLDY MCLDY
PRECIP TYPE TSTMS TSTMS SHOWERS
CHANCE PRECIP (%) 90 70 60
CHANCE OF THUNDER (%) 40 40 0
TEMP (24H TREND) 77 (+3) 58 (-5) 67
RH % (24H TREND) 82 (+7) 99 (-1) 72
WIND 20FT/EARLY(MPH) SW 5 N 5 NE 9 G17
WIND 20FT/LATE(MPH) W 5 NE 6 NE 9
PRECIP AMOUNT 0.43 0.12 0.23
PRECIP DURATION 10 4 4
PRECIP BEGIN 6 AM CONTINUING CONTINUING
PRECIP END CONTINUING CONTINUING CONTINUING
MIXING HGT(M-AGL/MSL) 640 570
MIXING HGT(FT-AGL/MSL)2090 1860
TRANSPORT WND (MPH) W 7 NE 12
VENT RATE (KT-FT) 12540 18600
CATEGORY DAY 1 2
INVERSION 70F/10AM 7PM 59F/8AM
DISPERSION 1 2
MAX ADI EARLY 15 GEN POOR 8 POOR 21 FAIR
MAX ADI LATE 16 GEN POOR 10 POOR 24 FAIR
MAX LVORI EARLY 8 7 5
MAX LVORI LATE 5 7 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ003-202015-
OHIO-
INCLUDING THE CITY OF WHEELING
1243 AM EDT SUN SEP 20 2026
TODAY TONIGHT MON
CLOUD COVER MCLDY MCLDY MCLDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 100 70 70
CHANCE OF THUNDER (%) 40 40 20
TEMP (24H TREND) 78 (0) 58 (-6) 67
RH % (24H TREND) 82 (+11) 100 (0) 77
WIND 20FT/EARLY(MPH) SW 5 N 5 NE 9 G17
WIND 20FT/LATE(MPH) W 5 NE 6 NE 9
PRECIP AMOUNT 0.38 0.15 0.24
PRECIP DURATION 9 6 3
PRECIP BEGIN 6 AM CONTINUING CONTINUING
PRECIP END CONTINUING CONTINUING CONTINUING
MIXING HGT(M-AGL/MSL) 650 540
MIXING HGT(FT-AGL/MSL)2150 1790
TRANSPORT WND (MPH) W 8 NE 12
VENT RATE (KT-FT) 15050 17900
CATEGORY DAY 2 2
INVERSION 70F/10AM 7PM 60F/9AM
DISPERSION 2 2
MAX ADI EARLY 16 GEN POOR 7 POOR 18 GEN POOR
MAX ADI LATE 17 GEN POOR 9 POOR 22 FAIR
MAX LVORI EARLY 8 9 5
MAX LVORI LATE 5 8 4
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ004-202015-
MARSHALL-
INCLUDING THE CITY OF MOUNDSVILLE
1243 AM EDT SUN SEP 20 2026
TODAY TONIGHT MON
CLOUD COVER MCLDY MCLDY MCLDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 80 70 70
CHANCE OF THUNDER (%) 40 40 20
TEMP (24H TREND) 79 (-2) 60 (-4) 70
RH % (24H TREND) 83 (+14) 100 (0) 84
WIND 20FT/EARLY(MPH) SW 5 LGT/VAR NE 7
WIND 20FT/LATE(MPH) LGT/VAR NE 5 NE 8
PRECIP AMOUNT 0.34 0.17 0.29
PRECIP DURATION 8 6 4
PRECIP BEGIN 6 AM CONTINUING CONTINUING
PRECIP END CONTINUING CONTINUING 5 PM
MIXING HGT(M-AGL/MSL) 680 550
MIXING HGT(FT-AGL/MSL)2230 1810
TRANSPORT WND (MPH) W 8 NE 10
VENT RATE (KT-FT) 15610 16290
CATEGORY DAY 2 2
INVERSION 70F/10AM 7PM 62F/9AM
DISPERSION 2 2
MAX ADI EARLY 14 GEN POOR 6 VERY POOR 16 GEN POOR
MAX ADI LATE 17 GEN POOR 7 POOR 20 GEN POOR
MAX LVORI EARLY 8 9 7
MAX LVORI LATE 5 9 5
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ012-202015-
WETZEL-
INCLUDING THE CITY OF NEW MARTINSVILLE
1243 AM EDT SUN SEP 20 2026
TODAY TONIGHT MON
CLOUD COVER MCLDY MCLDY MCLDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 90 70 80
CHANCE OF THUNDER (%) 40 40 30
TEMP (24H TREND) 79 (-2) 62 (-2) 72
RH % (24H TREND) 83 (+16) 100 (0) 85
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR NE 5
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR NE 6
PRECIP AMOUNT 0.37 0.15 0.37
PRECIP DURATION 7 5 5
PRECIP BEGIN 6 AM CONTINUING CONTINUING
PRECIP END CONTINUING CONTINUING CONTINUING
MIXING HGT(M-AGL/MSL) 670 560
MIXING HGT(FT-AGL/MSL)2180 1830
TRANSPORT WND (MPH) W 8 NE 8
VENT RATE (KT-FT) 15260 12810
CATEGORY DAY 2 2
INVERSION 70F/10AM 7PM 65F/10AM
DISPERSION 2 2
MAX ADI EARLY 13 GEN POOR 4 VERY POOR 13 GEN POOR
MAX ADI LATE 17 GEN POOR 6 VERY POOR 18 GEN POOR
MAX LVORI EARLY 8 9 8
MAX LVORI LATE 5 9 5
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ021-202015-
MARION-
INCLUDING THE CITY OF FAIRMONT
1243 AM EDT SUN SEP 20 2026
TODAY TONIGHT MON
CLOUD COVER MCLDY MCLDY MCLDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 90 60 80
CHANCE OF THUNDER (%) 40 40 40
TEMP (24H TREND) 77 (-6) 61 (-3) 73
RH % (24H TREND) 85 (+18) 100 (0) 87
WIND 20FT/EARLY(MPH) SW 5 LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) SW 5 LGT/VAR NE 6
PRECIP AMOUNT 0.44 0.12 0.31
PRECIP DURATION 6 5 6
PRECIP BEGIN 6 AM CONTINUING CONTINUING
PRECIP END CONTINUING CONTINUING CONTINUING
MIXING HGT(M-AGL/MSL) 680 610
MIXING HGT(FT-AGL/MSL)2230 2010
TRANSPORT WND (MPH) W 9 E 8
VENT RATE (KT-FT) 17840 14070
CATEGORY DAY 2 2
INVERSION 70F/10AM 7PM 68F/11AM
DISPERSION 2 2
MAX ADI EARLY 15 GEN POOR 4 VERY POOR 12 POOR
MAX ADI LATE 21 FAIR 4 VERY POOR 15 GEN POOR
MAX LVORI EARLY 8 10 8
MAX LVORI LATE 5 9 5
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ509-202015-
MONONGALIA-
INCLUDING THE CITY OF MORGANTOWN
1243 AM EDT SUN SEP 20 2026
TODAY TONIGHT MON
CLOUD COVER MCLDY MCLDY MCLDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 90 70 80
CHANCE OF THUNDER (%) 40 40 40
TEMP (24H TREND) 77 (-4) 61 (-3) 71
RH % (24H TREND) 84 (+18) 100 (0) 84
WIND 20FT/EARLY(MPH) SW 5 LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) SW 5 LGT/VAR NE 6
PRECIP AMOUNT 0.42 0.16 0.45
PRECIP DURATION 7 6 4
PRECIP BEGIN 6 AM CONTINUING CONTINUING
PRECIP END CONTINUING CONTINUING CONTINUING
MIXING HGT(M-AGL/MSL) 680 550
MIXING HGT(FT-AGL/MSL)2230 1810
TRANSPORT WND (MPH) W 8 E 9
VENT RATE (KT-FT) 15610 14480
CATEGORY DAY 2 2
INVERSION 70F/10AM 7PM 66F/10AM
DISPERSION 2 2
MAX ADI EARLY 16 GEN POOR 4 VERY POOR 12 POOR
MAX ADI LATE 20 GEN POOR 4 VERY POOR 16 GEN POOR
MAX LVORI EARLY 7 10 8
MAX LVORI LATE 5 9 5
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ510-202015-
RIDGES OF EASTERN MONONGALIA AND NORTHWESTERN PRESTON-
INCLUDING THE CITY OF COOPERS ROCK
1243 AM EDT SUN SEP 20 2026
TODAY TONIGHT MON
CLOUD COVER MCLDY MCLDY MCLDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 90 70 80
CHANCE OF THUNDER (%) 40 40 40
TEMP (24H TREND) 75 (-3) 59 (-3) 70
RH % (24H TREND) 84 (+17) 100 (0) 82
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR E 5
PRECIP AMOUNT 0.50 0.15 0.39
PRECIP DURATION 7 5 5
PRECIP BEGIN 6 AM CONTINUING CONTINUING
PRECIP END CONTINUING CONTINUING CONTINUING
MIXING HGT(M-AGL/MSL) 590 600
MIXING HGT(FT-AGL/MSL)1920 1970
TRANSPORT WND (MPH) W 10 SE 9
VENT RATE (KT-FT) 17280 15760
CATEGORY DAY 2 2
INVERSION 67F/10AM 7PM 64F/10AM
DISPERSION 2 2
MAX ADI EARLY 17 GEN POOR 3 VERY POOR 13 GEN POOR
MAX ADI LATE 21 FAIR 3 VERY POOR 17 GEN POOR
MAX LVORI EARLY 6 10 9
MAX LVORI LATE 5 10 5
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ511-202015-
PRESTON-
INCLUDING THE CITIES OF KINGWOOD AND BRUCETON MILLS
1243 AM EDT SUN SEP 20 2026
TODAY TONIGHT MON
CLOUD COVER MCLDY MCLDY MCLDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 90 60 80
CHANCE OF THUNDER (%) 30 30 40
TEMP (24H TREND) 77 (-3) 59 (-3) 72
RH % (24H TREND) 80 (+17) 100 (0) 78
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) SW 5 LGT/VAR E 5
PRECIP AMOUNT 0.51 0.14 0.33
PRECIP DURATION 6 5 6
PRECIP BEGIN 6 AM CONTINUING CONTINUING
PRECIP END CONTINUING CONTINUING CONTINUING
MIXING HGT(M-AGL/MSL) 600 670
MIXING HGT(FT-AGL/MSL)1970 2210
TRANSPORT WND (MPH) W 12 SE 10
VENT RATE (KT-FT) 19700 19890
CATEGORY DAY 2 2
INVERSION 67F/9AM 7PM 65F/10AM
DISPERSION 2 2
MAX ADI EARLY 17 GEN POOR 4 VERY POOR 14 GEN POOR
MAX ADI LATE 21 FAIR 3 VERY POOR 19 GEN POOR
MAX LVORI EARLY 7 10 9
MAX LVORI LATE 5 10 4
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ512-202015-
EASTERN PRESTON-
INCLUDING THE CITIES OF TERRA ALTA, ROWLESBURG, AND HAZELTON
1243 AM EDT SUN SEP 20 2026
TODAY TONIGHT MON
CLOUD COVER MCLDY MCLDY MCLDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 90 60 80
CHANCE OF THUNDER (%) 30 30 30
TEMP (24H TREND) 76 (-3) 59 (-3) 71
RH % (24H TREND) 82 (+15) 100 (0) 81
WIND 20FT/EARLY(MPH) SW 5 LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) W 5 LGT/VAR E 5
PRECIP AMOUNT 0.49 0.12 0.29
PRECIP DURATION 6 4 6
PRECIP BEGIN 6 AM CONTINUING CONTINUING
PRECIP END CONTINUING CONTINUING CONTINUING
MIXING HGT(M-AGL/MSL) 590 600
MIXING HGT(FT-AGL/MSL)1950 1960
TRANSPORT WND (MPH) W 13 SE 10
VENT RATE (KT-FT) 21450 17640
CATEGORY DAY 2 2
INVERSION 65F/9AM 7PM 64F/11AM
DISPERSION 2 2
MAX ADI EARLY 18 GEN POOR 5 VERY POOR 15 GEN POOR
MAX ADI LATE 24 FAIR 3 VERY POOR 20 GEN POOR
MAX LVORI EARLY 5 10 9
MAX LVORI LATE 5 10 5
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ513-202015-
WESTERN TUCKER-
INCLUDING THE CITIES OF PARSONS, HENDRICKS, AND SAINT GEORGE
1243 AM EDT SUN SEP 20 2026
TODAY TONIGHT MON
CLOUD COVER MCLDY MCLDY MCLDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 90 60 80
CHANCE OF THUNDER (%) 30 30 40
TEMP (24H TREND) 78 (-6) 62 (-1) 75
RH % (24H TREND) 75 (+10) 100 (0) 79
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR
PRECIP AMOUNT 0.27 0.11 0.25
PRECIP DURATION 5 5 6
PRECIP BEGIN 6 AM CONTINUING CONTINUING
PRECIP END CONTINUING CONTINUING CONTINUING
MIXING HGT(M-AGL/MSL) 680 590
MIXING HGT(FT-AGL/MSL)2220 1930
TRANSPORT WND (MPH) W 13 S 9
VENT RATE (KT-FT) 24420 15440
CATEGORY DAY 3 2
INVERSION 66F/9AM 7PM 68F/11AM
DISPERSION 3 2
MAX ADI EARLY 17 GEN POOR 4 VERY POOR 15 GEN POOR
MAX ADI LATE 25 FAIR 3 VERY POOR 22 FAIR
MAX LVORI EARLY 8 10 9
MAX LVORI LATE 4 10 4
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ514-202015-
EASTERN TUCKER-
INCLUDING THE CITIES OF DAVIS, THOMAS, AND CANAAN VALLEY
1243 AM EDT SUN SEP 20 2026
TODAY TONIGHT MON
CLOUD COVER MCLDY MCLDY MCLDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 80 70 80
CHANCE OF THUNDER (%) 30 30 30
TEMP (24H TREND) 74 (-2) 55 (-4) 69
RH % (24H TREND) 80 (+13) 100 (0) 90
WIND 20FT/EARLY(MPH) W 5 G20 LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) W 5 LGT/VAR LGT/VAR
PRECIP AMOUNT 0.19 0.08 0.22
PRECIP DURATION 4 4 7
PRECIP BEGIN 6 AM CONTINUING CONTINUING
PRECIP END CONTINUING CONTINUING CONTINUING
MIXING HGT(M-AGL/MSL) 730 460
MIXING HGT(FT-AGL/MSL)2400 1510
TRANSPORT WND (MPH) W 15 SE 10
VENT RATE (KT-FT) 31200 13590
CATEGORY DAY 3 2
INVERSION 65F/9AM 7PM 63F/11AM
DISPERSION 3 2
MAX ADI EARLY 27 FAIR 8 POOR 12 POOR
MAX ADI LATE 34 FAIR 3 VERY POOR 17 GEN POOR
MAX LVORI EARLY 6 9 9
MAX LVORI LATE 4 10 6
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
FORECAST FOR DAYS 3 THROUGH 7
TUESDAY
CLOUDY WITH SHOWERS LIKELY. LOWS IN THE MID 50S. HIGHS
IN THE MID 60S. NORTHEAST WINDS AROUND 10 MPH.
WEDNESDAY
SHOWERS. LOWS IN THE LOWER 50S. HIGHS IN THE LOWER
60S. EAST WINDS AROUND 10 MPH.
THURSDAY
MOSTLY CLOUDY. SHOWERS LIKELY. LOWS AROUND 50. HIGHS
IN THE MID 60S. EAST WINDS 15 TO 20 MPH.
FRIDAY
PARTLY CLOUDY. LOWS IN THE UPPER 40S. HIGHS IN THE MID
60S. NORTHEAST WINDS 5 TO 10 MPH.
SATURDAY
PARTLY CLOUDY. LOWS IN THE UPPER 40S. HIGHS IN THE
UPPER 60S. NORTH WINDS 5 TO 10 MPH.
SHALLENBERGER
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page