523
FNUS51 KPBZ 210520
FWFPBZ
FIRE WEATHER PLANNING FORECAST
NATIONAL WEATHER SERVICE PITTSBURGH PA
1220 AM EST FRI NOV 21 2025
DISCUSSION
AREAS OF DENSE FOG ARE EXPECTED EARLY THIS MORNING; MOSTLY BEFORE
10AM. PRECIPITATION CHANCES INCREASE LATE THIS EVENING WITH A
PASSING LOW PRESSURE SYSTEM TO OUR SOUTH. RAINFALL AMOUNTS THROUGH
EARLY SATURDAY WILL RANGE FROM A TRACE TO HALF AN INCH; HIGHER
AMOUNTS LIKELY SOUTH OF I-70. MINRH VALUES WILL LIKELY STAY ABOVE
50 PERCENT OVER THE NEXT 48 HOURS. WINDS WILL REMAIN LIGHT FROM
THE SOUTH/SOUTHWEST TODAY BEFORE SHIFTING FROM THE NORTHWEST EARLY
SATURDAY MORNING. FIRE WEATHER CONCERNS REMAIN LOW.
FORECASTER: HEFFERAN
OHZ039-212115-
TUSCARAWAS-
INCLUDING THE CITIES OF NEW PHILADELPHIA AND DOVER
1220 AM EST FRI NOV 21 2025
TODAY TONIGHT SAT
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE SHOWERS RAIN NONE
CHANCE PRECIP (%) 20 60 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 52 (+3) 38 (-1) 49
RH % (24H TREND) 76 (+2) 100 (0) 56
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR NW 5
PRECIP AMOUNT 0.00 0.05 0.00
PRECIP DURATION 1 4
PRECIP BEGIN 8 AM CONTINUING
PRECIP END CONTINUING 6 AM
MIXING HGT(M-AGL/MSL) 560 1010
MIXING HGT(FT-AGL/MSL)1830 3330
TRANSPORT WND (MPH) W 8 NW 9
VENT RATE (KT-FT) 11340 32300
CATEGORY DAY 2 3
INVERSION 48F/11AM 5PM 40F/5AM
DISPERSION 4 5
MAX ADI EARLY 13 GEN POOR 3 VERY POOR 26 FAIR
MAX ADI LATE 15 GEN POOR 5 VERY POOR 30 FAIR
MAX LVORI EARLY 9 9 6
MAX LVORI LATE 5 9 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ040-212115-
CARROLL-
INCLUDING THE CITIES OF CARROLLTON AND MALVERN
1220 AM EST FRI NOV 21 2025
TODAY TONIGHT SAT
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE SHOWERS RAIN NONE
CHANCE PRECIP (%) 20 60 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 51 (+3) 37 (0) 48
RH % (24H TREND) 79 (+6) 100 (0) 59
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR N 5
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR NW 5
PRECIP AMOUNT 0.00 0.04 0.00
PRECIP DURATION 1 5
PRECIP BEGIN 1 PM CONTINUING
PRECIP END CONTINUING 6 AM
MIXING HGT(M-AGL/MSL) 540 1080
MIXING HGT(FT-AGL/MSL)1780 3540
TRANSPORT WND (MPH) W 9 N 10
VENT RATE (KT-FT) 11850 38370
CATEGORY DAY 2 3
INVERSION 44F/10AM 5PM 39F/8AM
DISPERSION 4 5
MAX ADI EARLY 13 GEN POOR 3 VERY POOR 28 FAIR
MAX ADI LATE 16 GEN POOR 6 VERY POOR 35 FAIR
MAX LVORI EARLY 8 8 7
MAX LVORI LATE 5 9 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ041-212115-
COLUMBIANA-
INCLUDING THE CITIES OF EAST LIVERPOOL, SALEM, AND COLUMBIANA
1220 AM EST FRI NOV 21 2025
TODAY TONIGHT SAT
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE NONE RAIN NONE
CHANCE PRECIP (%) 0 50 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 51 (+4) 36 (-1) 47
RH % (24H TREND) 78 (+2) 100 (0) 58
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR NW 5
PRECIP AMOUNT 0.00 0.03 0.00
PRECIP DURATION 2
PRECIP BEGIN 6 PM
PRECIP END 6 AM
MIXING HGT(M-AGL/MSL) 610 1100
MIXING HGT(FT-AGL/MSL)2010 3620
TRANSPORT WND (MPH) W 9 N 10
VENT RATE (KT-FT) 13990 40130
CATEGORY DAY 2 3
INVERSION 44F/10AM 5PM 38F/8AM
DISPERSION 4 5
MAX ADI EARLY 16 GEN POOR 3 VERY POOR 29 FAIR
MAX ADI LATE 18 GEN POOR 5 VERY POOR 36 FAIR
MAX LVORI EARLY 8 8 7
MAX LVORI LATE 5 9 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ048-212115-
COSHOCTON-
INCLUDING THE CITY OF COSHOCTON
1220 AM EST FRI NOV 21 2025
TODAY TONIGHT SAT
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE SHOWERS RAIN NONE
CHANCE PRECIP (%) 30 70 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 51 (+2) 38 (-1) 49
RH % (24H TREND) 78 (-1) 100 (0) 55
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR
PRECIP AMOUNT 0.01 0.07 0.00
PRECIP DURATION 1 3
PRECIP BEGIN 7 AM CONTINUING
PRECIP END CONTINUING 6 AM
MIXING HGT(M-AGL/MSL) 530 970
MIXING HGT(FT-AGL/MSL)1740 3170
TRANSPORT WND (MPH) W 6 NW 8
VENT RATE (KT-FT) 8320 28550
CATEGORY DAY 1 2
INVERSION 48F/11AM 5PM 40F/5AM
DISPERSION 4 5
MAX ADI EARLY 11 POOR 4 VERY POOR 26 FAIR
MAX ADI LATE 12 POOR 6 VERY POOR 30 FAIR
MAX LVORI EARLY 9 8 6
MAX LVORI LATE 5 9 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ049-212115-
HARRISON-
INCLUDING THE CITY OF CADIZ
1220 AM EST FRI NOV 21 2025
TODAY TONIGHT SAT
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE SHOWERS RAIN NONE
CHANCE PRECIP (%) 30 70 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 52 (+3) 38 (0) 50
RH % (24H TREND) 76 (0) 100 (0) 55
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR NW 5
PRECIP AMOUNT 0.01 0.07 0.00
PRECIP DURATION 1 4
PRECIP BEGIN 7 AM CONTINUING
PRECIP END CONTINUING 6 AM
MIXING HGT(M-AGL/MSL) 480 980
MIXING HGT(FT-AGL/MSL)1560 3230
TRANSPORT WND (MPH) W 8 NW 9
VENT RATE (KT-FT) 8300 26630
CATEGORY DAY 1 2
INVERSION 47F/11AM 5PM 40F/5AM
DISPERSION 4 5
MAX ADI EARLY 11 POOR 3 VERY POOR 25 FAIR
MAX ADI LATE 14 GEN POOR 5 VERY POOR 30 FAIR
MAX LVORI EARLY 9 9 6
MAX LVORI LATE 5 9 2
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ050-212115-
JEFFERSON OH-
INCLUDING THE CITY OF STEUBENVILLE
1220 AM EST FRI NOV 21 2025
TODAY TONIGHT SAT
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE SHOWERS RAIN NONE
CHANCE PRECIP (%) 30 70 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 51 (+3) 38 (0) 49
RH % (24H TREND) 76 (+2) 99 (-1) 54
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR NW 5
PRECIP AMOUNT 0.01 0.05 0.00
PRECIP DURATION 1 5
PRECIP BEGIN 7 AM CONTINUING
PRECIP END CONTINUING 6 AM
MIXING HGT(M-AGL/MSL) 530 1080
MIXING HGT(FT-AGL/MSL)1720 3550
TRANSPORT WND (MPH) W 8 NW 9
VENT RATE (KT-FT) 12180 35650
CATEGORY DAY 2 3
INVERSION 44F/10AM 5PM 40F/8AM
DISPERSION 4 5
MAX ADI EARLY 13 GEN POOR 3 VERY POOR 28 FAIR
MAX ADI LATE 15 GEN POOR 5 VERY POOR 31 FAIR
MAX LVORI EARLY 9 7 6
MAX LVORI LATE 4 8 2
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ057-212115-
MUSKINGUM-
INCLUDING THE CITY OF ZANESVILLE
1220 AM EST FRI NOV 21 2025
TODAY TONIGHT SAT
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE SHOWERS RAIN NONE
CHANCE PRECIP (%) 40 80 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 52 (+2) 40 (0) 51
RH % (24H TREND) 79 (-6) 100 (0) 55
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR
PRECIP AMOUNT 0.01 0.16 0.00
PRECIP DURATION 2 5
PRECIP BEGIN 7 AM CONTINUING
PRECIP END CONTINUING 6 AM
MIXING HGT(M-AGL/MSL) 450 940
MIXING HGT(FT-AGL/MSL)1480 3080
TRANSPORT WND (MPH) W 6 N 9
VENT RATE (KT-FT) 6150 28940
CATEGORY DAY 1 2
INVERSION 48F/11AM 5PM 42F/8AM
DISPERSION 3 5
MAX ADI EARLY 7 POOR 4 VERY POOR 25 FAIR
MAX ADI LATE 9 POOR 4 VERY POOR 29 FAIR
MAX LVORI EARLY 9 9 7
MAX LVORI LATE 5 9 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ058-212115-
GUERNSEY-
INCLUDING THE CITY OF CAMBRIDGE
1220 AM EST FRI NOV 21 2025
TODAY TONIGHT SAT
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE SHOWERS RAIN NONE
CHANCE PRECIP (%) 40 80 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 53 (+3) 39 (0) 51
RH % (24H TREND) 76 (-9) 100 (0) 54
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR
PRECIP AMOUNT 0.01 0.16 0.00
PRECIP DURATION 1 4
PRECIP BEGIN 7 AM CONTINUING
PRECIP END CONTINUING 5 AM
MIXING HGT(M-AGL/MSL) 470 940
MIXING HGT(FT-AGL/MSL)1530 3070
TRANSPORT WND (MPH) W 6 N 8
VENT RATE (KT-FT) 5900 28940
CATEGORY DAY 1 2
INVERSION 48F/11AM 5PM 42F/5AM
DISPERSION 3 5
MAX ADI EARLY 8 POOR 3 VERY POOR 25 FAIR
MAX ADI LATE 11 POOR 5 VERY POOR 26 FAIR
MAX LVORI EARLY 9 9 6
MAX LVORI LATE 5 9 2
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ059-212115-
BELMONT-
INCLUDING THE CITIES OF MARTINS FERRY AND ST. CLAIRSVILLE
1220 AM EST FRI NOV 21 2025
TODAY TONIGHT SAT
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE SHOWERS RAIN NONE
CHANCE PRECIP (%) 40 80 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 53 (+3) 41 (+2) 51
RH % (24H TREND) 77 (-7) 100 (0) 55
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR
PRECIP AMOUNT 0.02 0.15 0.00
PRECIP DURATION 1 5
PRECIP BEGIN 7 AM CONTINUING
PRECIP END CONTINUING 5 AM
MIXING HGT(M-AGL/MSL) 450 910
MIXING HGT(FT-AGL/MSL)1490 2990
TRANSPORT WND (MPH) W 6 NW 10
VENT RATE (KT-FT) 7230 26570
CATEGORY DAY 1 3
INVERSION 48F/11AM 4PM 42F/5AM
DISPERSION 3 5
MAX ADI EARLY 8 POOR 4 VERY POOR 24 FAIR
MAX ADI LATE 11 POOR 5 VERY POOR 30 FAIR
MAX LVORI EARLY 9 9 6
MAX LVORI LATE 5 9 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ068-212115-
NOBLE-
INCLUDING THE CITY OF CALDWELL
1220 AM EST FRI NOV 21 2025
TODAY TONIGHT SAT
CLOUD COVER MCLDY CLOUDY PCLDY
PRECIP TYPE SHOWERS RAIN NONE
CHANCE PRECIP (%) 50 80 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 53 (+3) 41 (+2) 52
RH % (24H TREND) 79 (-12) 100 (0) 57
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR
PRECIP AMOUNT 0.02 0.18 0.00
PRECIP DURATION 2 5
PRECIP BEGIN 7 AM CONTINUING
PRECIP END CONTINUING 4 AM
MIXING HGT(M-AGL/MSL) 420 820
MIXING HGT(FT-AGL/MSL)1380 2700
TRANSPORT WND (MPH) W 5 N 9
VENT RATE (KT-FT) 5420 25120
CATEGORY DAY 1 2
INVERSION 51F/1PM 4PM 43F/8AM
DISPERSION 3 5
MAX ADI EARLY 6 VERY POOR 4 VERY POOR 25 FAIR
MAX ADI LATE 7 POOR 5 VERY POOR 26 FAIR
MAX LVORI EARLY 9 9 7
MAX LVORI LATE 6 9 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ069-212115-
MONROE-
INCLUDING THE CITY OF WOODSFIELD
1220 AM EST FRI NOV 21 2025
TODAY TONIGHT SAT
CLOUD COVER MCLDY CLOUDY PCLDY
PRECIP TYPE SHOWERS RAIN NONE
CHANCE PRECIP (%) 50 90 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 54 (+4) 42 (+2) 52
RH % (24H TREND) 79 (-12) 100 (0) 58
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR
PRECIP AMOUNT 0.02 0.19 0.00
PRECIP DURATION 2 6
PRECIP BEGIN 7 AM CONTINUING
PRECIP END CONTINUING 5 AM
MIXING HGT(M-AGL/MSL) 380 840
MIXING HGT(FT-AGL/MSL)1260 2750
TRANSPORT WND (MPH) SW 5 NW 8
VENT RATE (KT-FT) 6540 27760
CATEGORY DAY 1 2
INVERSION 53F/2PM 4PM 44F/8AM
DISPERSION 3 5
MAX ADI EARLY 5 VERY POOR 4 VERY POOR 21 FAIR
MAX ADI LATE 7 POOR 5 VERY POOR 25 FAIR
MAX LVORI EARLY 9 9 7
MAX LVORI LATE 5 9 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ007-212115-
MERCER-
INCLUDING THE CITIES OF SHARON, HERMITAGE, AND GROVE CITY
1220 AM EST FRI NOV 21 2025
TODAY TONIGHT SAT
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE NONE RAIN NONE
CHANCE PRECIP (%) 0 30 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 50 (+4) 33 (-2) 46
RH % (24H TREND) 77 (-1) 100 (0) 59
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) SW 5 LGT/VAR NW 6
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION 2
PRECIP BEGIN 7 PM
PRECIP END 6 AM
MIXING HGT(M-AGL/MSL) 670 1100
MIXING HGT(FT-AGL/MSL)2200 3620
TRANSPORT WND (MPH) W 12 NW 12
VENT RATE (KT-FT) 22480 41450
CATEGORY DAY 2 3
INVERSION 46F/11AM 5PM 36F/8AM
DISPERSION 5 5
MAX ADI EARLY 19 GEN POOR 4 VERY POOR 27 FAIR
MAX ADI LATE 22 FAIR 4 VERY POOR 40 FAIR
MAX LVORI EARLY 7 9 8
MAX LVORI LATE 4 9 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ008-212115-
VENANGO-
INCLUDING THE CITIES OF OIL CITY AND FRANKLIN
1220 AM EST FRI NOV 21 2025
TODAY TONIGHT SAT
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE NONE RAIN NONE
CHANCE PRECIP (%) 0 30 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 49 (+3) 33 (-2) 45
RH % (24H TREND) 80 (+3) 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 0.00 0.00 0.00
PRECIP DURATION 1
PRECIP BEGIN 8 PM
PRECIP END 5 AM
MIXING HGT(M-AGL/MSL) 600 1130
MIXING HGT(FT-AGL/MSL)1950 3700
TRANSPORT WND (MPH) W 13 NW 10
VENT RATE (KT-FT) 27020 45270
CATEGORY DAY 2 3
INVERSION 44F/11AM 5PM 34F/8AM
DISPERSION 5 5
MAX ADI EARLY 16 GEN POOR 4 VERY POOR 27 FAIR
MAX ADI LATE 22 FAIR 4 VERY POOR 37 FAIR
MAX LVORI EARLY 8 9 9
MAX LVORI LATE 4 9 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ009-212115-
FOREST-
INCLUDING THE CITY OF TIONESTA
1220 AM EST FRI NOV 21 2025
TODAY TONIGHT SAT
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE RAIN RAIN NONE
CHANCE PRECIP (%) 20 20 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 48 (+2) 32 (-2) 44
RH % (24H TREND) 77 (-6) 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 0.00 0.00 0.00
PRECIP DURATION 0 1
PRECIP BEGIN 7 AM 8 PM
PRECIP END 10 AM 5 AM
MIXING HGT(M-AGL/MSL) 570 1120
MIXING HGT(FT-AGL/MSL)1890 3690
TRANSPORT WND (MPH) W 13 NW 12
VENT RATE (KT-FT) 32290 49520
CATEGORY DAY 2 3
INVERSION 41F/10AM 4PM 34F/8AM
DISPERSION 5 5
MAX ADI EARLY 16 GEN POOR 4 VERY POOR 28 FAIR
MAX ADI LATE 22 FAIR 4 VERY POOR 40 FAIR
MAX LVORI EARLY 8 9 8
MAX LVORI LATE 4 9 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ013-212115-
LAWRENCE-
INCLUDING THE CITIES OF NEW CASTLE AND ELLWOOD CITY
1220 AM EST FRI NOV 21 2025
TODAY TONIGHT SAT
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE NONE RAIN NONE
CHANCE PRECIP (%) 0 40 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 51 (+3) 34 (-1) 47
RH % (24H TREND) 76 (-4) 100 (0) 58
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR NW 5
PRECIP AMOUNT 0.00 0.01 0.00
PRECIP DURATION 2
PRECIP BEGIN 7 PM
PRECIP END 6 AM
MIXING HGT(M-AGL/MSL) 650 1120
MIXING HGT(FT-AGL/MSL)2140 3680
TRANSPORT WND (MPH) W 10 N 12
VENT RATE (KT-FT) 20090 42090
CATEGORY DAY 2 3
INVERSION 44F/10AM 4PM 37F/8AM
DISPERSION 5 5
MAX ADI EARLY 17 GEN POOR 3 VERY POOR 34 FAIR
MAX ADI LATE 19 GEN POOR 4 VERY POOR 40 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.
PAZ014-212115-
BUTLER-
INCLUDING THE CITY OF BUTLER
1220 AM EST FRI NOV 21 2025
TODAY TONIGHT SAT
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE NONE RAIN NONE
CHANCE PRECIP (%) 0 50 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 51 (+4) 33 (-1) 47
RH % (24H TREND) 81 (-9) 100 (0) 60
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR NW 5
PRECIP AMOUNT 0.00 0.01 0.00
PRECIP DURATION 2
PRECIP BEGIN 7 PM
PRECIP END 6 AM
MIXING HGT(M-AGL/MSL) 560 1120
MIXING HGT(FT-AGL/MSL)1830 3670
TRANSPORT WND (MPH) W 9 NW 10
VENT RATE (KT-FT) 21560 41090
CATEGORY DAY 2 3
INVERSION 45F/11AM 4PM 37F/8AM
DISPERSION 5 5
MAX ADI EARLY 15 GEN POOR 4 VERY POOR 32 FAIR
MAX ADI LATE 17 GEN POOR 4 VERY POOR 39 FAIR
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.
PAZ015-212115-
CLARION-
INCLUDING THE CITY OF CLARION
1220 AM EST FRI NOV 21 2025
TODAY TONIGHT SAT
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE NONE RAIN NONE
CHANCE PRECIP (%) 0 30 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 49 (+2) 34 (-1) 46
RH % (24H TREND) 78 (-10) 100 (0) 57
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR NW 5
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION 2
PRECIP BEGIN 7 PM
PRECIP END 6 AM
MIXING HGT(M-AGL/MSL) 520 1130
MIXING HGT(FT-AGL/MSL)1710 3710
TRANSPORT WND (MPH) W 12 NW 10
VENT RATE (KT-FT) 24280 48730
CATEGORY DAY 2 3
INVERSION 44F/11AM 4PM 36F/8AM
DISPERSION 5 5
MAX ADI EARLY 15 GEN POOR 4 VERY POOR 27 FAIR
MAX ADI LATE 19 GEN POOR 4 VERY POOR 39 FAIR
MAX LVORI EARLY 8 8 8
MAX LVORI LATE 4 9 2
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ016-212115-
JEFFERSON PA-
INCLUDING THE CITIES OF PUNXSUTAWNEY AND BROOKVILLE
1220 AM EST FRI NOV 21 2025
TODAY TONIGHT SAT
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE NONE RAIN NONE
CHANCE PRECIP (%) 0 40 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 48 (+3) 35 (-1) 45
RH % (24H TREND) 78 (-15) 99 (-1) 55
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) SW 5 LGT/VAR NW 5
PRECIP AMOUNT 0.00 0.01 0.00
PRECIP DURATION 2
PRECIP BEGIN 7 PM
PRECIP END 6 AM
MIXING HGT(M-AGL/MSL) 460 1090
MIXING HGT(FT-AGL/MSL)1520 3570
TRANSPORT WND (MPH) W 12 NW 12
VENT RATE (KT-FT) 29830 52160
CATEGORY DAY 2 3
INVERSION 43F/11AM 4PM 36F/8AM
DISPERSION 5 5
MAX ADI EARLY 15 GEN POOR 4 VERY POOR 32 FAIR
MAX ADI LATE 19 GEN POOR 4 VERY POOR 38 FAIR
MAX LVORI EARLY 8 6 7
MAX LVORI LATE 4 8 2
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ020-212115-
BEAVER-
INCLUDING THE CITIES OF ALIQUIPPA, BEAVER FALLS, AMBRIDGE,
AND MONACA
1220 AM EST FRI NOV 21 2025
TODAY TONIGHT SAT
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE NONE RAIN NONE
CHANCE PRECIP (%) 0 60 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 51 (+4) 37 (0) 48
RH % (24H TREND) 78 (-1) 100 (0) 57
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.03 0.00
PRECIP DURATION 3
PRECIP BEGIN 6 PM
PRECIP END 6 AM
MIXING HGT(M-AGL/MSL) 580 1140
MIXING HGT(FT-AGL/MSL)1910 3730
TRANSPORT WND (MPH) W 9 NW 10
VENT RATE (KT-FT) 14290 41660
CATEGORY DAY 2 3
INVERSION 44F/10AM 4PM 39F/8AM
DISPERSION 4 5
MAX ADI EARLY 16 GEN POOR 3 VERY POOR 28 FAIR
MAX ADI LATE 17 GEN POOR 4 VERY POOR 38 FAIR
MAX LVORI EARLY 9 8 8
MAX LVORI LATE 5 9 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ021-212115-
ALLEGHENY-
INCLUDING THE CITY OF PITTSBURGH METRO AREA
1220 AM EST FRI NOV 21 2025
TODAY TONIGHT SAT
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE SHOWERS RAIN NONE
CHANCE PRECIP (%) 20 70 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 51 (+4) 38 (+1) 49
RH % (24H TREND) 80 (-9) 100 (0) 58
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR NW 5
PRECIP AMOUNT 0.01 0.05 0.00
PRECIP DURATION 1 3
PRECIP BEGIN 9 AM CONTINUING
PRECIP END CONTINUING 6 AM
MIXING HGT(M-AGL/MSL) 520 1130
MIXING HGT(FT-AGL/MSL)1710 3720
TRANSPORT WND (MPH) W 9 NW 10
VENT RATE (KT-FT) 13560 40030
CATEGORY DAY 2 3
INVERSION 47F/11AM 4PM 40F/8AM
DISPERSION 4 5
MAX ADI EARLY 14 GEN POOR 3 VERY POOR 21 FAIR
MAX ADI LATE 15 GEN POOR 4 VERY POOR 40 FAIR
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.
PAZ022-212115-
ARMSTRONG-
INCLUDING THE CITIES OF KITTANNING AND FORD CITY
1220 AM EST FRI NOV 21 2025
TODAY TONIGHT SAT
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE NONE RAIN NONE
CHANCE PRECIP (%) 0 60 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 50 (+3) 35 (-1) 49
RH % (24H TREND) 82 (-12) 100 (0) 59
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR NW 5
PRECIP AMOUNT 0.00 0.02 0.00
PRECIP DURATION 2
PRECIP BEGIN 7 PM
PRECIP END 6 AM
MIXING HGT(M-AGL/MSL) 500 1120
MIXING HGT(FT-AGL/MSL)1640 3670
TRANSPORT WND (MPH) W 9 NW 10
VENT RATE (KT-FT) 22070 43380
CATEGORY DAY 2 3
INVERSION 45F/11AM 4PM 38F/8AM
DISPERSION 5 5
MAX ADI EARLY 14 GEN POOR 3 VERY POOR 30 FAIR
MAX ADI LATE 15 GEN POOR 4 VERY POOR 35 FAIR
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.
PAZ029-212115-
WASHINGTON-
INCLUDING THE CITIES OF WASHINGTON AND CANONSBURG
1220 AM EST FRI NOV 21 2025
TODAY TONIGHT SAT
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE SHOWERS RAIN NONE
CHANCE PRECIP (%) 30 80 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 51 (+4) 40 (+3) 50
RH % (24H TREND) 80 (-12) 100 (0) 58
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR N 5
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR NW 5
PRECIP AMOUNT 0.02 0.10 0.00
PRECIP DURATION 1 6
PRECIP BEGIN 7 AM CONTINUING
PRECIP END CONTINUING 6 AM
MIXING HGT(M-AGL/MSL) 460 1010
MIXING HGT(FT-AGL/MSL)1500 3320
TRANSPORT WND (MPH) W 8 NW 9
VENT RATE (KT-FT) 15090 33950
CATEGORY DAY 1 3
INVERSION 47F/11AM 4PM 41F/8AM
DISPERSION 4 5
MAX ADI EARLY 12 POOR 3 VERY POOR 20 GEN POOR
MAX ADI LATE 12 POOR 5 VERY POOR 32 FAIR
MAX LVORI EARLY 9 8 7
MAX LVORI LATE 5 9 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ031-212115-
GREENE-
INCLUDING THE CITY OF WAYNESBURG
1220 AM EST FRI NOV 21 2025
TODAY TONIGHT SAT
CLOUD COVER MCLDY CLOUDY PCLDY
PRECIP TYPE SHOWERS RAIN NONE
CHANCE PRECIP (%) 40 90 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 53 (+5) 41 (+2) 50
RH % (24H TREND) 84 (-11) 100 (0) 62
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR
PRECIP AMOUNT 0.02 0.18 0.00
PRECIP DURATION 1 7
PRECIP BEGIN 7 AM CONTINUING
PRECIP END CONTINUING 6 AM
MIXING HGT(M-AGL/MSL) 380 850
MIXING HGT(FT-AGL/MSL)1260 2780
TRANSPORT WND (MPH) SW 7 NW 9
VENT RATE (KT-FT) 7290 29650
CATEGORY DAY 1 2
INVERSION 52F/2PM 4PM 42F/6AM
DISPERSION 3 5
MAX ADI EARLY 6 VERY POOR 3 VERY POOR 15 GEN POOR
MAX ADI LATE 9 POOR 4 VERY POOR 26 FAIR
MAX LVORI EARLY 9 9 8
MAX LVORI LATE 6 9 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ073-212115-
WESTMORELAND-
INCLUDING THE CITIES OF MURRYSVILLE, GREENSBURG, NEW KENSINGTON,
LOWER BURRELL, LATROBE, AND MONESSEN
1220 AM EST FRI NOV 21 2025
TODAY TONIGHT SAT
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE SHOWERS RAIN NONE
CHANCE PRECIP (%) 20 80 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 52 (+4) 38 (+1) 50
RH % (24H TREND) 81 (-13) 100 (0) 59
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR NW 5
PRECIP AMOUNT 0.02 0.07 0.00
PRECIP DURATION 1 5
PRECIP BEGIN 8 AM CONTINUING
PRECIP END CONTINUING 6 AM
MIXING HGT(M-AGL/MSL) 460 1090
MIXING HGT(FT-AGL/MSL)1510 3560
TRANSPORT WND (MPH) SW 9 NW 9
VENT RATE (KT-FT) 18190 35070
CATEGORY DAY 1 3
INVERSION 47F/11AM 4PM 41F/8AM
DISPERSION 5 5
MAX ADI EARLY 13 GEN POOR 3 VERY POOR 17 GEN POOR
MAX ADI LATE 15 GEN POOR 4 VERY POOR 35 FAIR
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.
PAZ074-212115-
HIGHER ELEVATIONS OF WESTMORELAND-
INCLUDING THE CITIES OF LIGONIER AND DONEGAL
1220 AM EST FRI NOV 21 2025
TODAY TONIGHT SAT
CLOUD COVER MCLDY CLOUDY PCLDY
PRECIP TYPE SHOWERS RAIN RAIN
CHANCE PRECIP (%) 20 80 20
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 53 (+6) 39 (0) 50
RH % (24H TREND) 69 (-25) 99 (-1) 53
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR NW 5
PRECIP AMOUNT 0.03 0.11 0.01
PRECIP DURATION 1 6 1
PRECIP BEGIN 7 AM CONTINUING CONTINUING
PRECIP END CONTINUING CONTINUING 1 PM
MIXING HGT(M-AGL/MSL) 500 990
MIXING HGT(FT-AGL/MSL)1630 3260
TRANSPORT WND (MPH) W 10 NW 12
VENT RATE (KT-FT) 19400 39440
CATEGORY DAY 2 3
INVERSION 49F/12PM 4PM 41F/8AM
DISPERSION 5 5
MAX ADI EARLY 13 GEN POOR 3 VERY POOR 17 GEN POOR
MAX ADI LATE 16 GEN POOR 4 VERY POOR 35 FAIR
MAX LVORI EARLY 7 6 6
MAX LVORI LATE 4 8 2
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ075-212115-
FAYETTE-
INCLUDING THE CITY OF UNIONTOWN
1220 AM EST FRI NOV 21 2025
TODAY TONIGHT SAT
CLOUD COVER MCLDY CLOUDY PCLDY
PRECIP TYPE SHOWERS RAIN RAIN
CHANCE PRECIP (%) 30 90 10
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 53 (+5) 41 (+2) 50
RH % (24H TREND) 82 (-13) 100 (0) 61
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR
PRECIP AMOUNT 0.03 0.17 0.01
PRECIP DURATION 1 6 1
PRECIP BEGIN 7 AM CONTINUING 7 AM
PRECIP END CONTINUING 6 AM 1 PM
MIXING HGT(M-AGL/MSL) 410 920
MIXING HGT(FT-AGL/MSL)1340 3010
TRANSPORT WND (MPH) SW 7 NW 8
VENT RATE (KT-FT) 12820 27500
CATEGORY DAY 1 2
INVERSION 49F/11AM 4PM 43F/8AM
DISPERSION 4 5
MAX ADI EARLY 9 POOR 3 VERY POOR 16 GEN POOR
MAX ADI LATE 11 POOR 3 VERY POOR 26 FAIR
MAX LVORI EARLY 9 9 8
MAX LVORI LATE 6 9 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ076-212115-
HIGHER ELEVATIONS OF FAYETTE-
INCLUDING THE CITIES OF CHAMPION AND OHIOPYLE
1220 AM EST FRI NOV 21 2025
TODAY TONIGHT SAT
CLOUD COVER MCLDY CLOUDY PCLDY
PRECIP TYPE SHOWERS RAIN RAIN
CHANCE PRECIP (%) 30 90 20
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 54 (+7) 40 (+1) 49
RH % (24H TREND) 74 (-22) 100 (0) 59
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR
PRECIP AMOUNT 0.02 0.18 0.01
PRECIP DURATION 2 7 1
PRECIP BEGIN 7 AM CONTINUING 7 AM
PRECIP END CONTINUING 6 AM 1 PM
MIXING HGT(M-AGL/MSL) 410 800
MIXING HGT(FT-AGL/MSL)1340 2620
TRANSPORT WND (MPH) W 9 NW 10
VENT RATE (KT-FT) 12650 26940
CATEGORY DAY 1 3
INVERSION CONTINUING 6PM 41F/7AM
DISPERSION 4 5
MAX ADI EARLY 9 POOR 3 VERY POOR 15 GEN POOR
MAX ADI LATE 11 POOR 3 VERY POOR 26 FAIR
MAX LVORI EARLY 8 9 8
MAX LVORI LATE 5 9 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ077-212115-
INDIANA-
INCLUDING THE CITY OF INDIANA
1220 AM EST FRI NOV 21 2025
TODAY TONIGHT SAT
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE RAIN RAIN NONE
CHANCE PRECIP (%) 20 60 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 51 (+4) 37 (0) 49
RH % (24H TREND) 80 (-15) 100 (0) 57
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR NW 5
PRECIP AMOUNT 0.00 0.03 0.00
PRECIP DURATION 1 3
PRECIP BEGIN 7 AM 7 PM
PRECIP END 2 PM 6 AM
MIXING HGT(M-AGL/MSL) 460 1070
MIXING HGT(FT-AGL/MSL)1500 3500
TRANSPORT WND (MPH) W 10 NW 12
VENT RATE (KT-FT) 21580 39110
CATEGORY DAY 2 3
INVERSION 45F/11AM 4PM 39F/8AM
DISPERSION 5 5
MAX ADI EARLY 14 GEN POOR 3 VERY POOR 29 FAIR
MAX ADI LATE 16 GEN POOR 4 VERY POOR 37 FAIR
MAX LVORI EARLY 8 9 8
MAX LVORI LATE 4 9 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ078-212115-
HIGHER ELEVATIONS OF INDIANA-
INCLUDING THE CITY OF ARMAGH
1220 AM EST FRI NOV 21 2025
TODAY TONIGHT SAT
CLOUD COVER MCLDY CLOUDY PCLDY
PRECIP TYPE RAIN RAIN NONE
CHANCE PRECIP (%) 20 70 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 51 (+5) 39 (+1) 48
RH % (24H TREND) 75 (-18) 99 (-1) 55
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR NW 5
PRECIP AMOUNT 0.01 0.04 0.00
PRECIP DURATION 1 4
PRECIP BEGIN 7 AM 6 PM
PRECIP END 2 PM 6 AM
MIXING HGT(M-AGL/MSL) 430 1030
MIXING HGT(FT-AGL/MSL)1400 3380
TRANSPORT WND (MPH) W 12 NW 12
VENT RATE (KT-FT) 19660 38670
CATEGORY DAY 2 3
INVERSION 47F/12PM 4PM 40F/8AM
DISPERSION 5 5
MAX ADI EARLY 12 POOR 4 VERY POOR 20 GEN POOR
MAX ADI LATE 16 GEN POOR 4 VERY POOR 41 GEN GOOD
MAX LVORI EARLY 8 7 7
MAX LVORI LATE 4 8 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ001-212115-
HANCOCK-
INCLUDING THE CITY OF WEIRTON
1220 AM EST FRI NOV 21 2025
TODAY TONIGHT SAT
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE SHOWERS RAIN NONE
CHANCE PRECIP (%) 20 70 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 51 (+4) 38 (0) 49
RH % (24H TREND) 76 (+1) 98 (-2) 54
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR NW 5
PRECIP AMOUNT 0.00 0.04 0.00
PRECIP DURATION 1 3
PRECIP BEGIN 1 PM CONTINUING
PRECIP END CONTINUING 6 AM
MIXING HGT(M-AGL/MSL) 590 1140
MIXING HGT(FT-AGL/MSL)1940 3750
TRANSPORT WND (MPH) W 9 NW 9
VENT RATE (KT-FT) 10550 31090
CATEGORY DAY 2 3
INVERSION 43F/10AM 4PM 40F/8AM
DISPERSION 4 5
MAX ADI EARLY 14 GEN POOR 3 VERY POOR 31 FAIR
MAX ADI LATE 16 GEN POOR 5 VERY POOR 34 FAIR
MAX LVORI EARLY 9 6 7
MAX LVORI LATE 5 8 2
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ002-212115-
BROOKE-
INCLUDING THE CITIES OF FOLLANSBEE AND WELLSBURG
1220 AM EST FRI NOV 21 2025
TODAY TONIGHT SAT
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE SHOWERS RAIN NONE
CHANCE PRECIP (%) 30 80 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 52 (+4) 40 (+1) 50
RH % (24H TREND) 76 (-5) 98 (-2) 54
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR NW 5
PRECIP AMOUNT 0.01 0.07 0.00
PRECIP DURATION 1 5
PRECIP BEGIN 7 AM CONTINUING
PRECIP END CONTINUING 6 AM
MIXING HGT(M-AGL/MSL) 520 1090
MIXING HGT(FT-AGL/MSL)1710 3560
TRANSPORT WND (MPH) W 8 NW 9
VENT RATE (KT-FT) 11190 26850
CATEGORY DAY 2 3
INVERSION 44F/10AM 4PM 41F/8AM
DISPERSION 4 5
MAX ADI EARLY 12 POOR 3 VERY POOR 24 FAIR
MAX ADI LATE 15 GEN POOR 4 VERY POOR 31 FAIR
MAX LVORI EARLY 9 6 6
MAX LVORI LATE 4 8 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ003-212115-
OHIO-
INCLUDING THE CITY OF WHEELING
1220 AM EST FRI NOV 21 2025
TODAY TONIGHT SAT
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE SHOWERS RAIN NONE
CHANCE PRECIP (%) 30 80 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 52 (+4) 41 (+2) 50
RH % (24H TREND) 78 (-11) 99 (-1) 55
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR NW 5
PRECIP AMOUNT 0.03 0.14 0.00
PRECIP DURATION 1 6
PRECIP BEGIN 7 AM CONTINUING
PRECIP END CONTINUING 6 AM
MIXING HGT(M-AGL/MSL) 470 920
MIXING HGT(FT-AGL/MSL)1530 3030
TRANSPORT WND (MPH) W 7 NW 8
VENT RATE (KT-FT) 7460 29780
CATEGORY DAY 1 2
INVERSION 47F/11AM 4PM 42F/6AM
DISPERSION 3 5
MAX ADI EARLY 10 POOR 3 VERY POOR 17 GEN POOR
MAX ADI LATE 12 POOR 5 VERY POOR 26 FAIR
MAX LVORI EARLY 9 8 7
MAX LVORI LATE 5 8 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ004-212115-
MARSHALL-
INCLUDING THE CITY OF MOUNDSVILLE
1220 AM EST FRI NOV 21 2025
TODAY TONIGHT SAT
CLOUD COVER MCLDY CLOUDY PCLDY
PRECIP TYPE SHOWERS RAIN NONE
CHANCE PRECIP (%) 40 80 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 54 (+5) 42 (+2) 52
RH % (24H TREND) 83 (-9) 100 (0) 59
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR
PRECIP AMOUNT 0.02 0.16 0.00
PRECIP DURATION 2 7
PRECIP BEGIN 7 AM CONTINUING
PRECIP END CONTINUING 5 AM
MIXING HGT(M-AGL/MSL) 420 870
MIXING HGT(FT-AGL/MSL)1370 2840
TRANSPORT WND (MPH) SW 6 NW 8
VENT RATE (KT-FT) 6610 27830
CATEGORY DAY 1 2
INVERSION 49F/12PM 4PM 43F/6AM
DISPERSION 3 5
MAX ADI EARLY 6 VERY POOR 3 VERY POOR 16 GEN POOR
MAX ADI LATE 9 POOR 5 VERY POOR 24 FAIR
MAX LVORI EARLY 9 8 6
MAX LVORI LATE 6 9 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ012-212115-
WETZEL-
INCLUDING THE CITY OF NEW MARTINSVILLE
1220 AM EST FRI NOV 21 2025
TODAY TONIGHT SAT
CLOUD COVER MCLDY CLOUDY PCLDY
PRECIP TYPE SHOWERS RAIN NONE
CHANCE PRECIP (%) 50 90 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 53 (+4) 43 (+2) 51
RH % (24H TREND) 87 (-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 0.02 0.27 0.00
PRECIP DURATION 2 7
PRECIP BEGIN 7 AM CONTINUING
PRECIP END CONTINUING 5 AM
MIXING HGT(M-AGL/MSL) 340 840
MIXING HGT(FT-AGL/MSL)1100 2750
TRANSPORT WND (MPH) SW 5 NW 8
VENT RATE (KT-FT) 5360 25270
CATEGORY DAY 1 2
INVERSION CONTINUING 6PM 44F/8AM
DISPERSION 3 5
MAX ADI EARLY 5 VERY POOR 4 VERY POOR 17 GEN POOR
MAX ADI LATE 6 VERY POOR 4 VERY POOR 24 FAIR
MAX LVORI EARLY 9 10 7
MAX LVORI LATE 7 9 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ021-212115-
MARION-
INCLUDING THE CITY OF FAIRMONT
1220 AM EST FRI NOV 21 2025
TODAY TONIGHT SAT
CLOUD COVER MCLDY CLOUDY PCLDY
PRECIP TYPE SHOWERS RAIN RAIN
CHANCE PRECIP (%) 50 90 20
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 54 (+5) 43 (+2) 51
RH % (24H TREND) 88 (-4) 100 (0) 64
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR
PRECIP AMOUNT 0.02 0.29 0.02
PRECIP DURATION 2 7 1
PRECIP BEGIN 7 AM CONTINUING 7 AM
PRECIP END CONTINUING 5 AM 1 PM
MIXING HGT(M-AGL/MSL) 330 840
MIXING HGT(FT-AGL/MSL)1090 2760
TRANSPORT WND (MPH) SW 5 NW 8
VENT RATE (KT-FT) 6600 23980
CATEGORY DAY 1 2
INVERSION CONTINUING 6PM 43F/7AM
DISPERSION 3 5
MAX ADI EARLY 5 VERY POOR 4 VERY POOR 15 GEN POOR
MAX ADI LATE 6 VERY POOR 4 VERY POOR 23 FAIR
MAX LVORI EARLY 9 10 8
MAX LVORI LATE 7 9 4
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ509-212115-
MONONGALIA-
INCLUDING THE CITY OF MORGANTOWN
1220 AM EST FRI NOV 21 2025
TODAY TONIGHT SAT
CLOUD COVER MCLDY CLOUDY PCLDY
PRECIP TYPE SHOWERS RAIN RAIN
CHANCE PRECIP (%) 40 90 20
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 54 (+5) 42 (+2) 50
RH % (24H TREND) 85 (-7) 100 (0) 64
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR
PRECIP AMOUNT 0.02 0.29 0.02
PRECIP DURATION 2 7 1
PRECIP BEGIN 7 AM CONTINUING 7 AM
PRECIP END CONTINUING 6 AM 1 PM
MIXING HGT(M-AGL/MSL) 360 880
MIXING HGT(FT-AGL/MSL)1180 2900
TRANSPORT WND (MPH) SW 5 NW 8
VENT RATE (KT-FT) 8480 26480
CATEGORY DAY 1 2
INVERSION 51F/1PM 4PM 44F/7AM
DISPERSION 4 5
MAX ADI EARLY 5 VERY POOR 3 VERY POOR 15 GEN POOR
MAX ADI LATE 7 POOR 4 VERY POOR 24 FAIR
MAX LVORI EARLY 9 9 8
MAX LVORI LATE 6 9 4
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ510-212115-
RIDGES OF EASTERN MONONGALIA AND NORTHWESTERN PRESTON-
INCLUDING THE CITY OF COOPERS ROCK
1220 AM EST FRI NOV 21 2025
TODAY TONIGHT SAT
CLOUD COVER MCLDY CLOUDY PCLDY
PRECIP TYPE SHOWERS RAIN RAIN
CHANCE PRECIP (%) 40 90 20
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 53 (+6) 41 (+1) 49
RH % (24H TREND) 82 (-13) 100 (0) 64
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR
PRECIP AMOUNT 0.03 0.30 0.02
PRECIP DURATION 2 8 1
PRECIP BEGIN 7 AM CONTINUING 7 AM
PRECIP END CONTINUING 6 AM 1 PM
MIXING HGT(M-AGL/MSL) 270 670
MIXING HGT(FT-AGL/MSL)890 2200
TRANSPORT WND (MPH) SW 8 NW 8
VENT RATE (KT-FT) 7890 22220
CATEGORY DAY 1 2
INVERSION CONTINUING 6PM 45F/11AM
DISPERSION 3 5
MAX ADI EARLY 6 VERY POOR 3 VERY POOR 12 POOR
MAX ADI LATE 6 VERY POOR 4 VERY POOR 21 FAIR
MAX LVORI EARLY 9 9 8
MAX LVORI LATE 6 9 4
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ511-212115-
PRESTON-
INCLUDING THE CITIES OF KINGWOOD AND BRUCETON MILLS
1220 AM EST FRI NOV 21 2025
TODAY TONIGHT SAT
CLOUD COVER MCLDY CLOUDY PCLDY
PRECIP TYPE SHOWERS RAIN RAIN
CHANCE PRECIP (%) 40 90 20
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 54 (+5) 41 (0) 51
RH % (24H TREND) 79 (-15) 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 0.03 0.31 0.02
PRECIP DURATION 2 8 1
PRECIP BEGIN 7 AM CONTINUING 7 AM
PRECIP END CONTINUING 6 AM 1 PM
MIXING HGT(M-AGL/MSL) 400 780
MIXING HGT(FT-AGL/MSL)1310 2560
TRANSPORT WND (MPH) SW 7 NW 9
VENT RATE (KT-FT) 13780 25250
CATEGORY DAY 1 2
INVERSION 52F/1PM 4PM 44F/5AM
DISPERSION 4 5
MAX ADI EARLY 8 POOR 3 VERY POOR 16 GEN POOR
MAX ADI LATE 10 POOR 3 VERY POOR 25 FAIR
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.
WVZ512-212115-
EASTERN PRESTON-
INCLUDING THE CITIES OF TERRA ALTA, ROWLESBURG, AND HAZELTON
1220 AM EST FRI NOV 21 2025
TODAY TONIGHT SAT
CLOUD COVER MCLDY CLOUDY PCLDY
PRECIP TYPE SHOWERS RAIN RAIN
CHANCE PRECIP (%) 40 90 30
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 54 (+6) 42 (+1) 49
RH % (24H TREND) 79 (-17) 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 0.04 0.32 0.02
PRECIP DURATION 2 8 1
PRECIP BEGIN 7 AM CONTINUING CONTINUING
PRECIP END CONTINUING CONTINUING 1 PM
MIXING HGT(M-AGL/MSL) 360 690
MIXING HGT(FT-AGL/MSL)1180 2270
TRANSPORT WND (MPH) W 9 NW 12
VENT RATE (KT-FT) 11930 23630
CATEGORY DAY 1 2
INVERSION CONTINUING 6PM 43F/6AM
DISPERSION 4 5
MAX ADI EARLY 12 POOR 4 VERY POOR 14 GEN POOR
MAX ADI LATE 12 POOR 4 VERY POOR 26 FAIR
MAX LVORI EARLY 8 9 8
MAX LVORI LATE 5 9 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ513-212115-
WESTERN TUCKER-
INCLUDING THE CITIES OF PARSONS, HENDRICKS, AND SAINT GEORGE
1220 AM EST FRI NOV 21 2025
TODAY TONIGHT SAT
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE SHOWERS RAIN RAIN
CHANCE PRECIP (%) 50 90 30
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 57 (+7) 43 (+3) 52
RH % (24H TREND) 75 (-14) 100 (0) 58
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR
PRECIP AMOUNT 0.04 0.37 0.03
PRECIP DURATION 2 8 1
PRECIP BEGIN 7 AM CONTINUING CONTINUING
PRECIP END CONTINUING CONTINUING 1 PM
MIXING HGT(M-AGL/MSL) 460 730
MIXING HGT(FT-AGL/MSL)1500 2380
TRANSPORT WND (MPH) SW 8 NW 10
VENT RATE (KT-FT) 14360 27140
CATEGORY DAY 1 2
INVERSION 54F/1PM 4PM 46F/4AM
DISPERSION 4 5
MAX ADI EARLY 10 POOR 4 VERY POOR 16 GEN POOR
MAX ADI LATE 11 POOR 4 VERY POOR 25 FAIR
MAX LVORI EARLY 9 9 7
MAX LVORI LATE 4 9 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ514-212115-
EASTERN TUCKER-
INCLUDING THE CITIES OF DAVIS, THOMAS, AND CANAAN VALLEY
1220 AM EST FRI NOV 21 2025
TODAY TONIGHT SAT
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE SHOWERS RAIN RAIN
CHANCE PRECIP (%) 50 90 30
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 54 (+7) 41 (+2) 49
RH % (24H TREND) 83 (-8) 100 (0) 69
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR
PRECIP AMOUNT 0.03 0.38 0.05
PRECIP DURATION 2 8 1
PRECIP BEGIN 7 AM CONTINUING CONTINUING
PRECIP END CONTINUING CONTINUING 1 PM
MIXING HGT(M-AGL/MSL) 400 570
MIXING HGT(FT-AGL/MSL)1320 1870
TRANSPORT WND (MPH) W 14 NW 13
VENT RATE (KT-FT) 13680 29560
CATEGORY DAY 2 2
INVERSION CONTINUING 6PM 45F/11AM
DISPERSION 4 5
MAX ADI EARLY 17 GEN POOR 6 VERY POOR 16 GEN POOR
MAX ADI LATE 18 GEN POOR 6 VERY POOR 22 FAIR
MAX LVORI EARLY 6 9 8
MAX LVORI LATE 6 9 4
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
FORECAST FOR DAYS 3 THROUGH 7
SUNDAY
PARTLY CLOUDY. LOWS IN THE UPPER 20S. HIGHS IN THE
LOWER 50S. SOUTHWEST WINDS AROUND 5 MPH.
MONDAY
PARTLY CLOUDY. LOWS IN THE LOWER 30S. HIGHS IN THE MID
50S. SOUTH WINDS AROUND 5 MPH.
TUESDAY
RAIN. LOWS IN THE LOWER 40S. HIGHS IN THE UPPER 50S.
SOUTH WINDS 5 TO 10 MPH.
WEDNESDAY
MOSTLY CLOUDY WITH RAIN LIKELY. LOWS IN THE MID 40S.
HIGHS IN THE MID 50S. SOUTHWEST WINDS 10 TO 15 MPH.
THURSDAY
MOSTLY CLOUDY. A CHANCE OF RAIN AND SNOW. COLDER.
LOWS IN THE LOWER 30S. HIGHS AROUND 40. WEST WINDS 15 TO 20 MPH.
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