845
FNUS51 KPBZ 310519
FWFPBZ
FIRE WEATHER PLANNING FORECAST
NATIONAL WEATHER SERVICE PITTSBURGH PA
1219 AM EST WED DEC 31 2025
DISCUSSION
THE POTENTIAL FOR FIRE WEATHER REMAINS LOW WITH SNOW CHANCES
ELEVATED TONIGHT THROUGH EARLY THURSDAY MORNING.
FORECASTER: HEFFERAN
OHZ039-312115-
TUSCARAWAS-
INCLUDING THE CITIES OF NEW PHILADELPHIA AND DOVER
1219 AM EST WED DEC 31 2025
TODAY TONIGHT THU
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE SNOW SNOW NONE
CHANCE PRECIP (%) 70 90 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 31 (+4) 10 (-9) 23
RH % (24H TREND) 74 (+9) 87 (-1) 53
WIND 20FT/EARLY(MPH) SW 8 G18 W 12 G22 W 6
WIND 20FT/LATE(MPH) SW 11 G19 NW 10 G22 W 7
PRECIP AMOUNT 0.05 0.10 0.00
PRECIP DURATION 3 5
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 2 AM
MIXING HGT(M-AGL/MSL) 1000 1050
MIXING HGT(FT-AGL/MSL)3290 3440
TRANSPORT WND (MPH) W 22 W 17
VENT RATE (KT-FT) 62510 51600
CATEGORY DAY 4 4
INVERSION 22F/7AM NONE NONE
DISPERSION 4 4
MAX ADI EARLY 45 GEN GOOD 34 FAIR 42 GEN GOOD
MAX ADI LATE 55 GEN GOOD 33 FAIR 58 GEN GOOD
MAX LVORI EARLY 4 4 4
MAX LVORI LATE 3 4 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ040-312115-
CARROLL-
INCLUDING THE CITIES OF CARROLLTON AND MALVERN
1219 AM EST WED DEC 31 2025
TODAY TONIGHT THU
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE SNOW SNOW NONE
CHANCE PRECIP (%) 80 90 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 30 (+4) 11 (-7) 22
RH % (24H TREND) 74 (+9) 87 (+1) 54
WIND 20FT/EARLY(MPH) SW 9 G18 W 13 G23 W 8
WIND 20FT/LATE(MPH) SW 12 G20 NW 11 G22 W 8
PRECIP AMOUNT 0.09 0.10 0.00
PRECIP DURATION 4 5
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 2 AM
MIXING HGT(M-AGL/MSL) 1020 1010
MIXING HGT(FT-AGL/MSL)3350 3310
TRANSPORT WND (MPH) W 23 W 20
VENT RATE (KT-FT) 67000 56270
CATEGORY DAY 4 4
INVERSION 20F/6AM NONE NONE
DISPERSION 4 4
MAX ADI EARLY 48 GEN GOOD 34 FAIR 50 GEN GOOD
MAX ADI LATE 57 GEN GOOD 34 FAIR 65 GOOD
MAX LVORI EARLY 4 4 3
MAX LVORI LATE 3 4 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ041-312115-
COLUMBIANA-
INCLUDING THE CITIES OF EAST LIVERPOOL, SALEM, AND COLUMBIANA
1219 AM EST WED DEC 31 2025
TODAY TONIGHT THU
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE SNOW SNOW NONE
CHANCE PRECIP (%) 90 90 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 30 (+4) 11 (-7) 21
RH % (24H TREND) 75 (+9) 87 (+1) 56
WIND 20FT/EARLY(MPH) SW 9 G18 W 13 G23 W 8
WIND 20FT/LATE(MPH) SW 11 G20 NW 10 G22 W 8
PRECIP AMOUNT 0.08 0.11 0.00
PRECIP DURATION 4 5
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 2 AM
MIXING HGT(M-AGL/MSL) 1020 990
MIXING HGT(FT-AGL/MSL)3360 3240
TRANSPORT WND (MPH) W 24 W 21
VENT RATE (KT-FT) 70560 58320
CATEGORY DAY 4 4
INVERSION 20F/6AM NONE NONE
DISPERSION 4 4
MAX ADI EARLY 51 GEN GOOD 35 FAIR 59 GEN GOOD
MAX ADI LATE 60 GEN GOOD 34 FAIR 61 GOOD
MAX LVORI EARLY 4 4 3
MAX LVORI LATE 3 4 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ048-312115-
COSHOCTON-
INCLUDING THE CITY OF COSHOCTON
1219 AM EST WED DEC 31 2025
TODAY TONIGHT THU
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE SNOW SNOW NONE
CHANCE PRECIP (%) 70 80 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 31 (+5) 10 (-9) 23
RH % (24H TREND) 74 (+7) 87 (-4) 53
WIND 20FT/EARLY(MPH) SW 7 G17 W 11 G21 W 5
WIND 20FT/LATE(MPH) W 10 G19 NW 8 G20 W 6
PRECIP AMOUNT 0.03 0.08 0.00
PRECIP DURATION 2 4
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 2 AM
MIXING HGT(M-AGL/MSL) 1010 1030
MIXING HGT(FT-AGL/MSL)3310 3390
TRANSPORT WND (MPH) W 22 W 16
VENT RATE (KT-FT) 62890 47460
CATEGORY DAY 4 3
INVERSION 22F/6AM 4AM 13F/9AM
DISPERSION 4 3
MAX ADI EARLY 43 GEN GOOD 34 FAIR 39 FAIR
MAX ADI LATE 57 GEN GOOD 29 FAIR 47 GEN GOOD
MAX LVORI EARLY 4 4 4
MAX LVORI LATE 3 4 2
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ049-312115-
HARRISON-
INCLUDING THE CITY OF CADIZ
1219 AM EST WED DEC 31 2025
TODAY TONIGHT THU
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE SNOW SNOW NONE
CHANCE PRECIP (%) 70 90 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 31 (+4) 11 (-8) 23
RH % (24H TREND) 71 (+8) 87 (+1) 51
WIND 20FT/EARLY(MPH) SW 9 G20 W 12 G23 W 7
WIND 20FT/LATE(MPH) SW 11 G21 NW 10 G23 W 7
PRECIP AMOUNT 0.06 0.14 0.00
PRECIP DURATION 3 6
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 2 AM
MIXING HGT(M-AGL/MSL) 1000 1060
MIXING HGT(FT-AGL/MSL)3270 3460
TRANSPORT WND (MPH) W 23 W 18
VENT RATE (KT-FT) 65400 55360
CATEGORY DAY 4 4
INVERSION 21F/6AM NONE NONE
DISPERSION 4 4
MAX ADI EARLY 46 GEN GOOD 33 FAIR 46 GEN GOOD
MAX ADI LATE 57 GEN GOOD 32 FAIR 62 GOOD
MAX LVORI EARLY 4 4 4
MAX LVORI LATE 3 4 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ050-312115-
JEFFERSON OH-
INCLUDING THE CITY OF STEUBENVILLE
1219 AM EST WED DEC 31 2025
TODAY TONIGHT THU
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE SNOW SNOW NONE
CHANCE PRECIP (%) 80 90 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 31 (+4) 13 (-6) 23
RH % (24H TREND) 70 (+8) 84 (0) 50
WIND 20FT/EARLY(MPH) SW 9 G19 W 13 G23 W 8
WIND 20FT/LATE(MPH) SW 12 G21 NW 11 G23 W 8
PRECIP AMOUNT 0.07 0.12 0.00
PRECIP DURATION 4 6
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 3 AM
MIXING HGT(M-AGL/MSL) 1020 1080
MIXING HGT(FT-AGL/MSL)3360 3530
TRANSPORT WND (MPH) W 23 W 20
VENT RATE (KT-FT) 67200 60010
CATEGORY DAY 4 4
INVERSION 21F/6AM NONE NONE
DISPERSION 4 4
MAX ADI EARLY 51 GEN GOOD 32 FAIR 51 GEN GOOD
MAX ADI LATE 59 GEN GOOD 33 FAIR 66 GOOD
MAX LVORI EARLY 4 3 3
MAX LVORI LATE 3 4 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ057-312115-
MUSKINGUM-
INCLUDING THE CITY OF ZANESVILLE
1219 AM EST WED DEC 31 2025
TODAY TONIGHT THU
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE SNOW/FZ RA SNOW NONE
CHANCE PRECIP (%) 70 70 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 33 (+6) 11 (-9) 25
RH % (24H TREND) 69 (+5) 88 (0) 51
WIND 20FT/EARLY(MPH) SW 8 G19 W 11 G22 LGT/VAR
WIND 20FT/LATE(MPH) W 10 G20 NW 8 G22 W 6
PRECIP AMOUNT 0.03 0.08 0.00
PRECIP DURATION 2 4
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 2 AM
MIXING HGT(M-AGL/MSL) 990 1010
MIXING HGT(FT-AGL/MSL)3250 3300
TRANSPORT WND (MPH) W 22 W 15
VENT RATE (KT-FT) 61750 42900
CATEGORY DAY 4 3
INVERSION 23F/6AM 5AM 15F/9AM
DISPERSION 4 3
MAX ADI EARLY 44 GEN GOOD 33 FAIR 34 FAIR
MAX ADI LATE 57 GEN GOOD 33 FAIR 48 GEN GOOD
MAX LVORI EARLY 4 4 4
MAX LVORI LATE 3 4 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ058-312115-
GUERNSEY-
INCLUDING THE CITY OF CAMBRIDGE
1219 AM EST WED DEC 31 2025
TODAY TONIGHT THU
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE SNOW SNOW NONE
CHANCE PRECIP (%) 70 80 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 33 (+6) 11 (-8) 25
RH % (24H TREND) 69 (+3) 88 (0) 49
WIND 20FT/EARLY(MPH) SW 8 G19 W 10 G22 W 5
WIND 20FT/LATE(MPH) SW 10 G20 NW 9 G22 W 6
PRECIP AMOUNT 0.05 0.10 0.00
PRECIP DURATION 2 6
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 3 AM
MIXING HGT(M-AGL/MSL) 980 1060
MIXING HGT(FT-AGL/MSL)3230 3460
TRANSPORT WND (MPH) W 22 W 16
VENT RATE (KT-FT) 61370 48440
CATEGORY DAY 4 3
INVERSION 22F/6AM NONE NONE
DISPERSION 4 3
MAX ADI EARLY 45 GEN GOOD 32 FAIR 38 FAIR
MAX ADI LATE 55 GEN GOOD 34 FAIR 55 GEN GOOD
MAX LVORI EARLY 4 4 4
MAX LVORI LATE 3 4 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ059-312115-
BELMONT-
INCLUDING THE CITIES OF MARTINS FERRY AND ST. CLAIRSVILLE
1219 AM EST WED DEC 31 2025
TODAY TONIGHT THU
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE SNOW SNOW NONE
CHANCE PRECIP (%) 70 90 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 33 (+6) 12 (-8) 24
RH % (24H TREND) 68 (+6) 89 (+3) 49
WIND 20FT/EARLY(MPH) SW 9 G21 W 12 G23 W 7
WIND 20FT/LATE(MPH) SW 11 G22 NW 11 G23 W 7
PRECIP AMOUNT 0.06 0.12 0.00
PRECIP DURATION 2 7
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 3 AM
MIXING HGT(M-AGL/MSL) 990 1070
MIXING HGT(FT-AGL/MSL)3260 3500
TRANSPORT WND (MPH) W 22 W 17
VENT RATE (KT-FT) 61940 52500
CATEGORY DAY 4 4
INVERSION 22F/6AM NONE NONE
DISPERSION 4 4
MAX ADI EARLY 49 GEN GOOD 34 FAIR 43 GEN GOOD
MAX ADI LATE 55 GEN GOOD 35 FAIR 60 GEN GOOD
MAX LVORI EARLY 4 4 4
MAX LVORI LATE 3 4 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ068-312115-
NOBLE-
INCLUDING THE CITY OF CALDWELL
1219 AM EST WED DEC 31 2025
TODAY TONIGHT THU
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE SNOW/FZ RA SNOW NONE
CHANCE PRECIP (%) 70 80 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 34 (+7) 13 (-6) 26
RH % (24H TREND) 65 (+3) 89 (+2) 46
WIND 20FT/EARLY(MPH) SW 8 G18 W 9 G22 W 5
WIND 20FT/LATE(MPH) SW 9 G20 NW 9 G23 W 6
PRECIP AMOUNT 0.05 0.09 0.00
PRECIP DURATION 2 6
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 3 AM
MIXING HGT(M-AGL/MSL) 1010 1060
MIXING HGT(FT-AGL/MSL)3330 3470
TRANSPORT WND (MPH) W 22 W 16
VENT RATE (KT-FT) 63270 48580
CATEGORY DAY 4 3
INVERSION 23F/6AM NONE NONE
DISPERSION 4 3
MAX ADI EARLY 45 GEN GOOD 29 FAIR 37 FAIR
MAX ADI LATE 55 GEN GOOD 31 FAIR 55 GEN GOOD
MAX LVORI EARLY 4 4 4
MAX LVORI LATE 3 4 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ069-312115-
MONROE-
INCLUDING THE CITY OF WOODSFIELD
1219 AM EST WED DEC 31 2025
TODAY TONIGHT THU
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE SNOW SNOW NONE
CHANCE PRECIP (%) 70 90 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 34 (+7) 14 (-5) 26
RH % (24H TREND) 64 (+5) 88 (+3) 45
WIND 20FT/EARLY(MPH) SW 8 G20 W 9 G23 W 5
WIND 20FT/LATE(MPH) SW 9 G21 NW 9 G23 W 6
PRECIP AMOUNT 0.05 0.13 0.00
PRECIP DURATION 2 7
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 4 AM
MIXING HGT(M-AGL/MSL) 1040 1110
MIXING HGT(FT-AGL/MSL)3420 3640
TRANSPORT WND (MPH) SW 23 W 16
VENT RATE (KT-FT) 68400 50960
CATEGORY DAY 4 3
INVERSION 23F/6AM NONE NONE
DISPERSION 4 3
MAX ADI EARLY 47 GEN GOOD 29 FAIR 40 FAIR
MAX ADI LATE 56 GEN GOOD 31 FAIR 57 GEN GOOD
MAX LVORI EARLY 4 4 3
MAX LVORI LATE 3 4 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ007-312115-
MERCER-
INCLUDING THE CITIES OF SHARON, HERMITAGE, AND GROVE CITY
1219 AM EST WED DEC 31 2025
TODAY TONIGHT THU
CLOUD COVER MCLDY MCLDY MCLDY
PRECIP TYPE SNOW SNOW SNOW
CHANCE PRECIP (%) 100 90 20
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 28 (+4) 10 (-7) 20
RH % (24H TREND) 79 (0) 94 (+4) 64
WIND 20FT/EARLY(MPH) SW 9 G18 W 13 G22 W 9
WIND 20FT/LATE(MPH) SW 12 G19 NW 11 G21 W 10 G17
PRECIP AMOUNT 0.12 0.13 0.00
PRECIP DURATION 5 5 1
PRECIP BEGIN 6 AM CONTINUING 7 AM
PRECIP END CONTINUING 2 AM 1 PM
MIXING HGT(M-AGL/MSL) 990 1310
MIXING HGT(FT-AGL/MSL)3240 4310
TRANSPORT WND (MPH) SW 22 W 22
VENT RATE (KT-FT) 61560 81890
CATEGORY DAY 4 4
INVERSION 18F/6AM NONE NONE
DISPERSION 4 4
MAX ADI EARLY 46 GEN GOOD 34 FAIR 58 GEN GOOD
MAX ADI LATE 53 GEN GOOD 33 FAIR 62 GOOD
MAX LVORI EARLY 4 4 3
MAX LVORI LATE 4 4 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ008-312115-
VENANGO-
INCLUDING THE CITIES OF OIL CITY AND FRANKLIN
1219 AM EST WED DEC 31 2025
TODAY TONIGHT THU
CLOUD COVER MCLDY MCLDY MCLDY
PRECIP TYPE SNOW SNOW SNOW
CHANCE PRECIP (%) 100 100 30
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 27 (+4) 11 (-6) 19
RH % (24H TREND) 80 (+5) 94 (+4) 66
WIND 20FT/EARLY(MPH) SW 8 G18 W 10 G22 W 7
WIND 20FT/LATE(MPH) SW 9 G18 NW 9 G21 W 9 G18
PRECIP AMOUNT 0.11 0.16 0.01
PRECIP DURATION 5 5 1
PRECIP BEGIN 6 AM CONTINUING 7 AM
PRECIP END CONTINUING 3 AM 1 PM
MIXING HGT(M-AGL/MSL) 1030 1520
MIXING HGT(FT-AGL/MSL)3380 4980
TRANSPORT WND (MPH) W 23 W 23
VENT RATE (KT-FT) 67600 99600
CATEGORY DAY 4 4
INVERSION 17F/7AM NONE NONE
DISPERSION 4 4
MAX ADI EARLY 50 GEN GOOD 31 FAIR 62 GOOD
MAX ADI LATE 58 GEN GOOD 30 FAIR 70 GOOD
MAX LVORI EARLY 4 4 4
MAX LVORI LATE 4 4 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ009-312115-
FOREST-
INCLUDING THE CITY OF TIONESTA
1219 AM EST WED DEC 31 2025
TODAY TONIGHT THU
CLOUD COVER MCLDY MCLDY MCLDY
PRECIP TYPE SNOW SNOW SNOW
CHANCE PRECIP (%) 90 100 30
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 26 (+3) 11 (-6) 19
RH % (24H TREND) 75 (+4) 91 (+5) 61
WIND 20FT/EARLY(MPH) SW 7 G18 W 8 G21 W 6
WIND 20FT/LATE(MPH) SW 8 G19 NW 8 G20 W 8 G18
PRECIP AMOUNT 0.10 0.18 0.01
PRECIP DURATION 5 6 1
PRECIP BEGIN 6 AM CONTINUING 7 AM
PRECIP END CONTINUING 6 AM 1 PM
MIXING HGT(M-AGL/MSL) 1060 1640
MIXING HGT(FT-AGL/MSL)3470 5380
TRANSPORT WND (MPH) SW 23 W 25
VENT RATE (KT-FT) 69400 118360
CATEGORY DAY 4 5
INVERSION 17F/6AM NONE NONE
DISPERSION 4 5
MAX ADI EARLY 51 GEN GOOD 30 FAIR 66 GOOD
MAX ADI LATE 59 GEN GOOD 30 FAIR 79 GOOD
MAX LVORI EARLY 4 4 3
MAX LVORI LATE 3 4 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ013-312115-
LAWRENCE-
INCLUDING THE CITIES OF NEW CASTLE AND ELLWOOD CITY
1219 AM EST WED DEC 31 2025
TODAY TONIGHT THU
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE SNOW SNOW NONE
CHANCE PRECIP (%) 100 100 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 30 (+5) 10 (-7) 21
RH % (24H TREND) 76 (+5) 93 (+6) 59
WIND 20FT/EARLY(MPH) SW 8 G17 W 12 G20 W 7
WIND 20FT/LATE(MPH) SW 10 G18 NW 10 G20 W 8
PRECIP AMOUNT 0.08 0.11 0.00
PRECIP DURATION 4 5
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 2 AM
MIXING HGT(M-AGL/MSL) 1010 1230
MIXING HGT(FT-AGL/MSL)3330 4030
TRANSPORT WND (MPH) W 23 W 20
VENT RATE (KT-FT) 66600 68510
CATEGORY DAY 4 4
INVERSION 19F/6AM NONE NONE
DISPERSION 4 4
MAX ADI EARLY 49 GEN GOOD 34 FAIR 55 GEN GOOD
MAX ADI LATE 56 GEN GOOD 36 FAIR 57 GEN GOOD
MAX LVORI EARLY 4 4 3
MAX LVORI LATE 3 4 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ014-312115-
BUTLER-
INCLUDING THE CITY OF BUTLER
1219 AM EST WED DEC 31 2025
TODAY TONIGHT THU
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE SNOW SNOW NONE
CHANCE PRECIP (%) 100 100 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 29 (+4) 10 (-7) 21
RH % (24H TREND) 78 (+7) 95 (+7) 60
WIND 20FT/EARLY(MPH) SW 9 G18 W 11 G22 W 8
WIND 20FT/LATE(MPH) SW 10 G19 NW 10 G22 W 9 G17
PRECIP AMOUNT 0.09 0.15 0.00
PRECIP DURATION 4 6
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 2 AM
MIXING HGT(M-AGL/MSL) 1090 1260
MIXING HGT(FT-AGL/MSL)3560 4130
TRANSPORT WND (MPH) W 24 W 22
VENT RATE (KT-FT) 74760 78470
CATEGORY DAY 4 4
INVERSION 18F/6AM NONE NONE
DISPERSION 4 4
MAX ADI EARLY 52 GEN GOOD 33 FAIR 57 GEN GOOD
MAX ADI LATE 62 GOOD 35 FAIR 60 GEN GOOD
MAX LVORI EARLY 4 4 3
MAX LVORI LATE 4 4 2
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ015-312115-
CLARION-
INCLUDING THE CITY OF CLARION
1219 AM EST WED DEC 31 2025
TODAY TONIGHT THU
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE SNOW SNOW SNOW
CHANCE PRECIP (%) 90 100 20
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 27 (+3) 11 (-6) 19
RH % (24H TREND) 77 (+4) 91 (+5) 63
WIND 20FT/EARLY(MPH) SW 8 G19 W 10 G23 W 7 G18
WIND 20FT/LATE(MPH) SW 9 G19 NW 9 G23 W 8 G18
PRECIP AMOUNT 0.09 0.14 0.00
PRECIP DURATION 3 5 1
PRECIP BEGIN 6 AM CONTINUING 7 AM
PRECIP END CONTINUING 2 AM 1 PM
MIXING HGT(M-AGL/MSL) 1110 1530
MIXING HGT(FT-AGL/MSL)3630 5030
TRANSPORT WND (MPH) W 24 W 24
VENT RATE (KT-FT) 76230 105630
CATEGORY DAY 4 5
INVERSION 18F/6AM NONE NONE
DISPERSION 4 5
MAX ADI EARLY 53 GEN GOOD 33 FAIR 61 GOOD
MAX ADI LATE 62 GOOD 33 FAIR 73 GOOD
MAX LVORI EARLY 4 4 3
MAX LVORI LATE 3 4 2
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ016-312115-
JEFFERSON PA-
INCLUDING THE CITIES OF PUNXSUTAWNEY AND BROOKVILLE
1219 AM EST WED DEC 31 2025
TODAY TONIGHT THU
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE SNOW SNOW SNOW
CHANCE PRECIP (%) 80 90 20
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 26 (+3) 11 (-6) 19
RH % (24H TREND) 73 (+6) 87 (+3) 60
WIND 20FT/EARLY(MPH) SW 10 G20 W 11 G23 W 9 G19
WIND 20FT/LATE(MPH) SW 10 G20 NW 11 G23 W 10 G20
PRECIP AMOUNT 0.09 0.17 0.00
PRECIP DURATION 3 6 1
PRECIP BEGIN 6 AM CONTINUING 7 AM
PRECIP END CONTINUING 3 AM 1 PM
MIXING HGT(M-AGL/MSL) 1110 1570
MIXING HGT(FT-AGL/MSL)3650 5170
TRANSPORT WND (MPH) W 25 W 25
VENT RATE (KT-FT) 80300 113740
CATEGORY DAY 4 5
INVERSION 17F/6AM NONE NONE
DISPERSION 4 5
MAX ADI EARLY 55 GEN GOOD 34 FAIR 65 GOOD
MAX ADI LATE 64 GOOD 34 FAIR 78 GOOD
MAX LVORI EARLY 3 4 3
MAX LVORI LATE 3 4 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ020-312115-
BEAVER-
INCLUDING THE CITIES OF ALIQUIPPA, BEAVER FALLS, AMBRIDGE,
AND MONACA
1219 AM EST WED DEC 31 2025
TODAY TONIGHT THU
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE SNOW SNOW NONE
CHANCE PRECIP (%) 90 90 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 30 (+4) 13 (-7) 22
RH % (24H TREND) 74 (+9) 89 (+4) 54
WIND 20FT/EARLY(MPH) SW 8 G18 W 11 G21 W 7
WIND 20FT/LATE(MPH) SW 10 G19 NW 10 G22 W 8
PRECIP AMOUNT 0.07 0.12 0.00
PRECIP DURATION 4 6
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 2 AM
MIXING HGT(M-AGL/MSL) 1060 1130
MIXING HGT(FT-AGL/MSL)3480 3720
TRANSPORT WND (MPH) W 23 W 20
VENT RATE (KT-FT) 69600 63240
CATEGORY DAY 4 4
INVERSION 20F/6AM NONE NONE
DISPERSION 4 4
MAX ADI EARLY 52 GEN GOOD 31 FAIR 67 GOOD
MAX ADI LATE 58 GEN GOOD 33 FAIR 68 GOOD
MAX LVORI EARLY 4 4 3
MAX LVORI LATE 3 4 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ021-312115-
ALLEGHENY-
INCLUDING THE CITY OF PITTSBURGH METRO AREA
1219 AM EST WED DEC 31 2025
TODAY TONIGHT THU
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE SNOW SNOW NONE
CHANCE PRECIP (%) 90 90 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 31 (+4) 14 (-6) 23
RH % (24H TREND) 73 (+9) 91 (+5) 54
WIND 20FT/EARLY(MPH) SW 10 G19 W 13 G23 W 9 G17
WIND 20FT/LATE(MPH) SW 12 G21 NW 12 G23 W 10 G17
PRECIP AMOUNT 0.06 0.13 0.00
PRECIP DURATION 4 7
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 3 AM
MIXING HGT(M-AGL/MSL) 1100 1160
MIXING HGT(FT-AGL/MSL)3620 3820
TRANSPORT WND (MPH) W 23 W 20
VENT RATE (KT-FT) 72400 64940
CATEGORY DAY 4 4
INVERSION 21F/6AM NONE NONE
DISPERSION 4 4
MAX ADI EARLY 55 GEN GOOD 32 FAIR 64 GOOD
MAX ADI LATE 59 GEN GOOD 34 FAIR 64 GOOD
MAX LVORI EARLY 4 4 3
MAX LVORI LATE 3 4 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ022-312115-
ARMSTRONG-
INCLUDING THE CITIES OF KITTANNING AND FORD CITY
1219 AM EST WED DEC 31 2025
TODAY TONIGHT THU
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE SNOW SNOW NONE
CHANCE PRECIP (%) 90 100 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 30 (+5) 12 (-6) 22
RH % (24H TREND) 76 (+7) 93 (+7) 59
WIND 20FT/EARLY(MPH) SW 9 G18 W 11 G22 W 8 G18
WIND 20FT/LATE(MPH) SW 11 G20 NW 11 G22 W 9 G18
PRECIP AMOUNT 0.08 0.15 0.00
PRECIP DURATION 3 6
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 3 AM
MIXING HGT(M-AGL/MSL) 1120 1330
MIXING HGT(FT-AGL/MSL)3680 4370
TRANSPORT WND (MPH) W 23 W 23
VENT RATE (KT-FT) 73600 87400
CATEGORY DAY 4 4
INVERSION 19F/6AM NONE NONE
DISPERSION 4 4
MAX ADI EARLY 54 GEN GOOD 31 FAIR 59 GEN GOOD
MAX ADI LATE 61 GOOD 36 FAIR 66 GOOD
MAX LVORI EARLY 4 4 3
MAX LVORI LATE 3 4 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ029-312115-
WASHINGTON-
INCLUDING THE CITIES OF WASHINGTON AND CANONSBURG
1219 AM EST WED DEC 31 2025
TODAY TONIGHT THU
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE SNOW SNOW NONE
CHANCE PRECIP (%) 80 90 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 31 (+4) 14 (-5) 23
RH % (24H TREND) 72 (+7) 87 (+2) 51
WIND 20FT/EARLY(MPH) SW 11 G20 W 13 G23 W 9 G17
WIND 20FT/LATE(MPH) SW 13 G21 NW 12 G23 W 9 G17
PRECIP AMOUNT 0.06 0.14 0.00
PRECIP DURATION 3 7
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 3 AM
MIXING HGT(M-AGL/MSL) 1050 1070
MIXING HGT(FT-AGL/MSL)3440 3510
TRANSPORT WND (MPH) W 24 W 21
VENT RATE (KT-FT) 72240 63180
CATEGORY DAY 4 4
INVERSION 21F/6AM NONE NONE
DISPERSION 4 4
MAX ADI EARLY 56 GEN GOOD 36 FAIR 47 GEN GOOD
MAX ADI LATE 61 GOOD 33 FAIR 63 GOOD
MAX LVORI EARLY 4 4 3
MAX LVORI LATE 3 4 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ031-312115-
GREENE-
INCLUDING THE CITY OF WAYNESBURG
1219 AM EST WED DEC 31 2025
TODAY TONIGHT THU
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE SNOW SNOW NONE
CHANCE PRECIP (%) 70 90 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 32 (+6) 14 (-6) 24
RH % (24H TREND) 72 (+11) 89 (+4) 50
WIND 20FT/EARLY(MPH) SW 9 G20 W 12 G23 W 7 G17
WIND 20FT/LATE(MPH) SW 11 G21 NW 12 G23 W 8
PRECIP AMOUNT 0.04 0.15 0.00
PRECIP DURATION 3 8
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 4 AM
MIXING HGT(M-AGL/MSL) 1050 1150
MIXING HGT(FT-AGL/MSL)3450 3760
TRANSPORT WND (MPH) SW 24 W 20
VENT RATE (KT-FT) 72450 63920
CATEGORY DAY 4 4
INVERSION 22F/6AM NONE NONE
DISPERSION 4 4
MAX ADI EARLY 57 GEN GOOD 31 FAIR 54 GEN GOOD
MAX ADI LATE 60 GEN GOOD 33 FAIR 70 GOOD
MAX LVORI EARLY 4 4 3
MAX LVORI LATE 3 4 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ073-312115-
WESTMORELAND-
INCLUDING THE CITIES OF MURRYSVILLE, GREENSBURG, NEW KENSINGTON,
LOWER BURRELL, LATROBE, AND MONESSEN
1219 AM EST WED DEC 31 2025
TODAY TONIGHT THU
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE SNOW SNOW NONE
CHANCE PRECIP (%) 90 100 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 31 (+4) 13 (-6) 23
RH % (24H TREND) 74 (+7) 93 (+6) 56
WIND 20FT/EARLY(MPH) SW 12 G20 W 14 G23 W 10 G18
WIND 20FT/LATE(MPH) SW 14 G21 W 13 G23 W 11 G18
PRECIP AMOUNT 0.08 0.17 0.00
PRECIP DURATION 4 7
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 4 AM
MIXING HGT(M-AGL/MSL) 1090 1210
MIXING HGT(FT-AGL/MSL)3570 3970
TRANSPORT WND (MPH) SW 23 W 22
VENT RATE (KT-FT) 71400 75430
CATEGORY DAY 4 4
INVERSION 20F/6AM NONE NONE
DISPERSION 4 4
MAX ADI EARLY 55 GEN GOOD 32 FAIR 56 GEN GOOD
MAX ADI LATE 60 GEN GOOD 35 FAIR 59 GEN GOOD
MAX LVORI EARLY 4 4 3
MAX LVORI LATE 3 4 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ074-312115-
HIGHER ELEVATIONS OF WESTMORELAND-
INCLUDING THE CITIES OF LIGONIER AND DONEGAL
1219 AM EST WED DEC 31 2025
TODAY TONIGHT THU
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE SNOW SNOW NONE
CHANCE PRECIP (%) 70 90 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 30 (+6) 12 (-5) 21
RH % (24H TREND) 67 (-2) 89 (+6) 53
WIND 20FT/EARLY(MPH) W 11 G24 W 14 G26 W 10 G23
WIND 20FT/LATE(MPH) SW 12 G23 W 14 G27 W 10 G22
PRECIP AMOUNT 0.10 0.28 0.00
PRECIP DURATION 3 8
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 4 AM
MIXING HGT(M-AGL/MSL) 1090 1280
MIXING HGT(FT-AGL/MSL)3580 4200
TRANSPORT WND (MPH) SW 23 W 25
VENT RATE (KT-FT) 71600 92400
CATEGORY DAY 4 4
INVERSION 18F/6AM NONE NONE
DISPERSION 4 4
MAX ADI EARLY 61 GOOD 33 FAIR 61 GOOD
MAX ADI LATE 64 GOOD 39 FAIR 67 GOOD
MAX LVORI EARLY 4 4 3
MAX LVORI LATE 3 4 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ075-312115-
FAYETTE-
INCLUDING THE CITY OF UNIONTOWN
1219 AM EST WED DEC 31 2025
TODAY TONIGHT THU
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE SNOW SNOW NONE
CHANCE PRECIP (%) 70 90 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 32 (+5) 15 (-4) 24
RH % (24H TREND) 72 (+8) 89 (+4) 52
WIND 20FT/EARLY(MPH) SW 10 G19 SW 12 G23 W 8 G18
WIND 20FT/LATE(MPH) SW 11 G19 W 12 G23 W 8
PRECIP AMOUNT 0.05 0.15 0.00
PRECIP DURATION 3 8
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 4 AM
MIXING HGT(M-AGL/MSL) 1060 1190
MIXING HGT(FT-AGL/MSL)3470 3920
TRANSPORT WND (MPH) SW 22 W 21
VENT RATE (KT-FT) 65930 70560
CATEGORY DAY 4 4
INVERSION 21F/6AM NONE NONE
DISPERSION 4 4
MAX ADI EARLY 55 GEN GOOD 34 FAIR 65 GOOD
MAX ADI LATE 59 GEN GOOD 34 FAIR 75 GOOD
MAX LVORI EARLY 4 4 3
MAX LVORI LATE 3 4 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ076-312115-
HIGHER ELEVATIONS OF FAYETTE-
INCLUDING THE CITIES OF CHAMPION AND OHIOPYLE
1219 AM EST WED DEC 31 2025
TODAY TONIGHT THU
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE SNOW SNOW NONE
CHANCE PRECIP (%) 70 90 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 29 (+6) 12 (-4) 21
RH % (24H TREND) 71 (-2) 92 (+5) 54
WIND 20FT/EARLY(MPH) SW 10 G22 W 11 G24 W 8 G21
WIND 20FT/LATE(MPH) SW 10 G21 W 12 G25 W 8 G19
PRECIP AMOUNT 0.09 0.30 0.00
PRECIP DURATION 4 9
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 5 AM
MIXING HGT(M-AGL/MSL) 1030 1120
MIXING HGT(FT-AGL/MSL)3370 3680
TRANSPORT WND (MPH) SW 23 W 24
VENT RATE (KT-FT) 67400 77280
CATEGORY DAY 4 4
INVERSION 18F/6AM NONE NONE
DISPERSION 4 4
MAX ADI EARLY 54 GEN GOOD 30 FAIR 59 GEN GOOD
MAX ADI LATE 57 GEN GOOD 32 FAIR 77 GOOD
MAX LVORI EARLY 4 4 4
MAX LVORI LATE 3 4 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ077-312115-
INDIANA-
INCLUDING THE CITY OF INDIANA
1219 AM EST WED DEC 31 2025
TODAY TONIGHT THU
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE SNOW SNOW NONE
CHANCE PRECIP (%) 80 90 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 29 (+5) 12 (-6) 21
RH % (24H TREND) 74 (+7) 90 (+6) 58
WIND 20FT/EARLY(MPH) W 11 G21 W 13 G24 W 10 G20
WIND 20FT/LATE(MPH) SW 12 G22 W 13 G24 W 11 G22
PRECIP AMOUNT 0.08 0.19 0.00
PRECIP DURATION 3 7
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 3 AM
MIXING HGT(M-AGL/MSL) 1110 1410
MIXING HGT(FT-AGL/MSL)3650 4620
TRANSPORT WND (MPH) SW 25 W 25
VENT RATE (KT-FT) 80300 101640
CATEGORY DAY 4 4
INVERSION 19F/6AM NONE NONE
DISPERSION 4 4
MAX ADI EARLY 58 GEN GOOD 33 FAIR 61 GOOD
MAX ADI LATE 65 GOOD 36 FAIR 72 GOOD
MAX LVORI EARLY 4 4 3
MAX LVORI LATE 3 4 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ078-312115-
HIGHER ELEVATIONS OF INDIANA-
INCLUDING THE CITY OF ARMAGH
1219 AM EST WED DEC 31 2025
TODAY TONIGHT THU
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE SNOW SNOW NONE
CHANCE PRECIP (%) 70 90 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 29 (+5) 13 (-4) 20
RH % (24H TREND) 71 (+3) 88 (+4) 56
WIND 20FT/EARLY(MPH) W 11 G22 W 13 G26 W 10 G21
WIND 20FT/LATE(MPH) W 12 G23 W 13 G25 W 11 G22
PRECIP AMOUNT 0.10 0.23 0.00
PRECIP DURATION 3 7
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 4 AM
MIXING HGT(M-AGL/MSL) 1080 1340
MIXING HGT(FT-AGL/MSL)3560 4390
TRANSPORT WND (MPH) W 26 W 25
VENT RATE (KT-FT) 81880 96580
CATEGORY DAY 4 4
INVERSION 18F/6AM NONE NONE
DISPERSION 4 4
MAX ADI EARLY 60 GEN GOOD 33 FAIR 64 GOOD
MAX ADI LATE 66 GOOD 36 FAIR 72 GOOD
MAX LVORI EARLY 4 4 3
MAX LVORI LATE 3 4 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ001-312115-
HANCOCK-
INCLUDING THE CITY OF WEIRTON
1219 AM EST WED DEC 31 2025
TODAY TONIGHT THU
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE SNOW SNOW NONE
CHANCE PRECIP (%) 90 90 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 30 (+3) 14 (-6) 22
RH % (24H TREND) 71 (+6) 83 (-1) 51
WIND 20FT/EARLY(MPH) SW 8 G18 W 12 G21 W 7
WIND 20FT/LATE(MPH) SW 11 G19 NW 10 G21 W 8
PRECIP AMOUNT 0.07 0.11 0.00
PRECIP DURATION 4 6
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 2 AM
MIXING HGT(M-AGL/MSL) 1050 1100
MIXING HGT(FT-AGL/MSL)3450 3620
TRANSPORT WND (MPH) W 23 W 20
VENT RATE (KT-FT) 69000 61540
CATEGORY DAY 4 4
INVERSION 21F/6AM NONE NONE
DISPERSION 4 4
MAX ADI EARLY 51 GEN GOOD 30 FAIR 55 GEN GOOD
MAX ADI LATE 57 GEN GOOD 31 FAIR 68 GOOD
MAX LVORI EARLY 4 3 3
MAX LVORI LATE 3 3 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ002-312115-
BROOKE-
INCLUDING THE CITIES OF FOLLANSBEE AND WELLSBURG
1219 AM EST WED DEC 31 2025
TODAY TONIGHT THU
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE SNOW SNOW NONE
CHANCE PRECIP (%) 80 90 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 31 (+4) 14 (-6) 23
RH % (24H TREND) 69 (+6) 83 (0) 50
WIND 20FT/EARLY(MPH) SW 9 G20 W 12 G22 W 7
WIND 20FT/LATE(MPH) SW 12 G21 NW 11 G22 W 8
PRECIP AMOUNT 0.06 0.12 0.00
PRECIP DURATION 4 7
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 3 AM
MIXING HGT(M-AGL/MSL) 1040 1130
MIXING HGT(FT-AGL/MSL)3420 3710
TRANSPORT WND (MPH) W 24 W 20
VENT RATE (KT-FT) 71820 63070
CATEGORY DAY 4 4
INVERSION 22F/6AM NONE NONE
DISPERSION 4 4
MAX ADI EARLY 53 GEN GOOD 32 FAIR 51 GEN GOOD
MAX ADI LATE 59 GEN GOOD 33 FAIR 70 GOOD
MAX LVORI EARLY 4 3 3
MAX LVORI LATE 3 3 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ003-312115-
OHIO-
INCLUDING THE CITY OF WHEELING
1219 AM EST WED DEC 31 2025
TODAY TONIGHT THU
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE SNOW SNOW NONE
CHANCE PRECIP (%) 80 90 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 32 (+5) 14 (-6) 23
RH % (24H TREND) 69 (+9) 86 (+1) 50
WIND 20FT/EARLY(MPH) SW 10 G20 W 13 G23 W 8
WIND 20FT/LATE(MPH) SW 12 G21 NW 12 G23 W 8
PRECIP AMOUNT 0.06 0.11 0.00
PRECIP DURATION 3 7
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 3 AM
MIXING HGT(M-AGL/MSL) 1020 1090
MIXING HGT(FT-AGL/MSL)3360 3560
TRANSPORT WND (MPH) W 23 W 20
VENT RATE (KT-FT) 67200 60520
CATEGORY DAY 4 4
INVERSION 22F/6AM NONE NONE
DISPERSION 4 4
MAX ADI EARLY 52 GEN GOOD 35 FAIR 49 GEN GOOD
MAX ADI LATE 57 GEN GOOD 31 FAIR 66 GOOD
MAX LVORI EARLY 4 4 3
MAX LVORI LATE 3 4 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ004-312115-
MARSHALL-
INCLUDING THE CITY OF MOUNDSVILLE
1219 AM EST WED DEC 31 2025
TODAY TONIGHT THU
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE SNOW SNOW NONE
CHANCE PRECIP (%) 70 90 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 33 (+6) 14 (-7) 25
RH % (24H TREND) 69 (+8) 88 (+3) 50
WIND 20FT/EARLY(MPH) SW 9 G20 W 12 G23 W 7
WIND 20FT/LATE(MPH) SW 11 G21 NW 11 G23 W 7
PRECIP AMOUNT 0.05 0.13 0.00
PRECIP DURATION 3 7
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 4 AM
MIXING HGT(M-AGL/MSL) 1060 1130
MIXING HGT(FT-AGL/MSL)3470 3700
TRANSPORT WND (MPH) SW 22 W 18
VENT RATE (KT-FT) 65930 59200
CATEGORY DAY 4 4
INVERSION 22F/6AM NONE NONE
DISPERSION 4 4
MAX ADI EARLY 52 GEN GOOD 32 FAIR 49 GEN GOOD
MAX ADI LATE 56 GEN GOOD 31 FAIR 64 GOOD
MAX LVORI EARLY 4 4 3
MAX LVORI LATE 3 4 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ012-312115-
WETZEL-
INCLUDING THE CITY OF NEW MARTINSVILLE
1219 AM EST WED DEC 31 2025
TODAY TONIGHT THU
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE SNOW SNOW NONE
CHANCE PRECIP (%) 70 90 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 32 (+6) 15 (-4) 24
RH % (24H TREND) 69 (+11) 90 (+4) 49
WIND 20FT/EARLY(MPH) SW 9 G20 W 11 G23 W 6
WIND 20FT/LATE(MPH) SW 9 G21 NW 10 G23 W 6
PRECIP AMOUNT 0.05 0.16 0.00
PRECIP DURATION 2 7
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 4 AM
MIXING HGT(M-AGL/MSL) 1070 1140
MIXING HGT(FT-AGL/MSL)3520 3740
TRANSPORT WND (MPH) SW 23 W 17
VENT RATE (KT-FT) 70400 56100
CATEGORY DAY 4 4
INVERSION 22F/6AM NONE NONE
DISPERSION 4 4
MAX ADI EARLY 50 GEN GOOD 30 FAIR 46 GEN GOOD
MAX ADI LATE 59 GEN GOOD 32 FAIR 62 GOOD
MAX LVORI EARLY 4 4 3
MAX LVORI LATE 3 4 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ021-312115-
MARION-
INCLUDING THE CITY OF FAIRMONT
1219 AM EST WED DEC 31 2025
TODAY TONIGHT THU
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE SNOW SNOW NONE
CHANCE PRECIP (%) 70 90 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 32 (+6) 15 (-4) 24
RH % (24H TREND) 72 (+12) 92 (+4) 51
WIND 20FT/EARLY(MPH) SW 9 G19 W 11 G23 W 7
WIND 20FT/LATE(MPH) SW 10 G20 W 11 G23 W 7
PRECIP AMOUNT 0.04 0.17 0.00
PRECIP DURATION 3 8
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 5 AM
MIXING HGT(M-AGL/MSL) 1050 1170
MIXING HGT(FT-AGL/MSL)3440 3820
TRANSPORT WND (MPH) SW 22 W 18
VENT RATE (KT-FT) 65360 61120
CATEGORY DAY 4 4
INVERSION 21F/6AM NONE NONE
DISPERSION 4 4
MAX ADI EARLY 54 GEN GOOD 31 FAIR 55 GEN GOOD
MAX ADI LATE 56 GEN GOOD 34 FAIR 64 GOOD
MAX LVORI EARLY 4 4 3
MAX LVORI LATE 3 4 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ509-312115-
MONONGALIA-
INCLUDING THE CITY OF MORGANTOWN
1219 AM EST WED DEC 31 2025
TODAY TONIGHT THU
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE SNOW SNOW NONE
CHANCE PRECIP (%) 80 90 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 32 (+6) 15 (-4) 24
RH % (24H TREND) 71 (+10) 90 (+4) 49
WIND 20FT/EARLY(MPH) SW 9 G19 SW 11 G22 W 7 G17
WIND 20FT/LATE(MPH) SW 10 G20 W 11 G23 W 7
PRECIP AMOUNT 0.04 0.17 0.00
PRECIP DURATION 4 8
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 5 AM
MIXING HGT(M-AGL/MSL) 1070 1210
MIXING HGT(FT-AGL/MSL)3500 3960
TRANSPORT WND (MPH) SW 22 W 20
VENT RATE (KT-FT) 66500 67320
CATEGORY DAY 4 4
INVERSION 22F/6AM NONE NONE
DISPERSION 4 4
MAX ADI EARLY 56 GEN GOOD 30 FAIR 59 GEN GOOD
MAX ADI LATE 59 GEN GOOD 33 FAIR 71 GOOD
MAX LVORI EARLY 4 4 3
MAX LVORI LATE 3 4 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ510-312115-
RIDGES OF EASTERN MONONGALIA AND NORTHWESTERN PRESTON-
INCLUDING THE CITY OF COOPERS ROCK
1219 AM EST WED DEC 31 2025
TODAY TONIGHT THU
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE SNOW SNOW NONE
CHANCE PRECIP (%) 80 90 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 29 (+7) 13 (-3) 22
RH % (24H TREND) 73 (+5) 93 (+4) 52
WIND 20FT/EARLY(MPH) SW 10 G21 W 12 G23 W 8 G18
WIND 20FT/LATE(MPH) SW 10 G20 W 13 G23 W 7
PRECIP AMOUNT 0.06 0.27 0.00
PRECIP DURATION 4 8
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 5 AM
MIXING HGT(M-AGL/MSL) 930 1040
MIXING HGT(FT-AGL/MSL)3070 3410
TRANSPORT WND (MPH) SW 22 W 21
VENT RATE (KT-FT) 58330 61380
CATEGORY DAY 4 4
INVERSION 19F/6AM NONE NONE
DISPERSION 4 4
MAX ADI EARLY 49 GEN GOOD 31 FAIR 61 GOOD
MAX ADI LATE 51 GEN GOOD 38 FAIR 71 GOOD
MAX LVORI EARLY 4 4 4
MAX LVORI LATE 3 4 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ511-312115-
PRESTON-
INCLUDING THE CITIES OF KINGWOOD AND BRUCETON MILLS
1219 AM EST WED DEC 31 2025
TODAY TONIGHT THU
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE SNOW/FZ RA SNOW NONE
CHANCE PRECIP (%) 70 90 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 30 (+7) 13 (-4) 22
RH % (24H TREND) 71 (+2) 94 (+5) 51
WIND 20FT/EARLY(MPH) SW 9 G21 W 10 G23 W 7 G18
WIND 20FT/LATE(MPH) SW 9 G20 W 10 G23 W 7
PRECIP AMOUNT 0.07 0.29 0.00
PRECIP DURATION 3 9
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 6 AM
MIXING HGT(M-AGL/MSL) 1020 1100
MIXING HGT(FT-AGL/MSL)3360 3620
TRANSPORT WND (MPH) SW 23 W 22
VENT RATE (KT-FT) 67200 68780
CATEGORY DAY 4 4
INVERSION 19F/6AM NONE NONE
DISPERSION 4 4
MAX ADI EARLY 54 GEN GOOD 32 FAIR 69 GOOD
MAX ADI LATE 57 GEN GOOD 38 FAIR 76 GOOD
MAX LVORI EARLY 4 4 4
MAX LVORI LATE 3 4 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ512-312115-
EASTERN PRESTON-
INCLUDING THE CITIES OF TERRA ALTA, ROWLESBURG, AND HAZELTON
1219 AM EST WED DEC 31 2025
TODAY TONIGHT THU
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE SNOW/FZ RA SNOW NONE
CHANCE PRECIP (%) 70 90 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 29 (+8) 12 (-3) 21
RH % (24H TREND) 71 (-4) 93 (+3) 53
WIND 20FT/EARLY(MPH) W 12 G24 W 13 G26 W 10 G24
WIND 20FT/LATE(MPH) W 11 G24 W 14 G27 W 9 G21
PRECIP AMOUNT 0.08 0.37 0.00
PRECIP DURATION 3 10
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 6 AM
MIXING HGT(M-AGL/MSL) 940 1000
MIXING HGT(FT-AGL/MSL)3100 3290
TRANSPORT WND (MPH) SW 25 W 26
VENT RATE (KT-FT) 68200 75670
CATEGORY DAY 4 4
INVERSION 17F/6AM NONE NONE
DISPERSION 4 4
MAX ADI EARLY 57 GEN GOOD 35 FAIR 63 GOOD
MAX ADI LATE 59 GEN GOOD 39 FAIR 71 GOOD
MAX LVORI EARLY 4 4 4
MAX LVORI LATE 4 4 2
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ513-312115-
WESTERN TUCKER-
INCLUDING THE CITIES OF PARSONS, HENDRICKS, AND SAINT GEORGE
1219 AM EST WED DEC 31 2025
TODAY TONIGHT THU
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE SNOW/FZ RA SNOW NONE
CHANCE PRECIP (%) 70 90 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 30 (+8) 13 (-3) 24
RH % (24H TREND) 66 (-3) 92 (+6) 48
WIND 20FT/EARLY(MPH) W 11 G23 W 12 G26 W 9 G24
WIND 20FT/LATE(MPH) W 11 G23 W 14 G27 W 9 G20
PRECIP AMOUNT 0.06 0.36 0.00
PRECIP DURATION 3 9
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 6 AM
MIXING HGT(M-AGL/MSL) 980 1020
MIXING HGT(FT-AGL/MSL)3220 3330
TRANSPORT WND (MPH) SW 24 W 24
VENT RATE (KT-FT) 67620 69930
CATEGORY DAY 4 4
INVERSION 18F/6AM NONE NONE
DISPERSION 4 4
MAX ADI EARLY 55 GEN GOOD 36 FAIR 67 GOOD
MAX ADI LATE 57 GEN GOOD 40 FAIR 77 GOOD
MAX LVORI EARLY 4 4 4
MAX LVORI LATE 3 4 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ514-312115-
EASTERN TUCKER-
INCLUDING THE CITIES OF DAVIS, THOMAS, AND CANAAN VALLEY
1219 AM EST WED DEC 31 2025
TODAY TONIGHT THU
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE SNOW/FZ RA SNOW NONE
CHANCE PRECIP (%) 70 80 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 27 (+10) 10 (-2) 20
RH % (24H TREND) 73 (-4) 95 (+5) 55
WIND 20FT/EARLY(MPH) W 13 G33 W 16 G41 W 14 G40
WIND 20FT/LATE(MPH) W 12 G33 W 17 G42 W 11 G30
PRECIP AMOUNT 0.06 0.43 0.00
PRECIP DURATION 2 7
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 6 AM
MIXING HGT(M-AGL/MSL) 800 880
MIXING HGT(FT-AGL/MSL)2610 2870
TRANSPORT WND (MPH) W 32 W 31
VENT RATE (KT-FT) 73080 77490
CATEGORY DAY 4 4
INVERSION 15F/6AM NONE NONE
DISPERSION 4 4
MAX ADI EARLY 62 GOOD 45 GEN GOOD 61 GOOD
MAX ADI LATE 65 GOOD 47 GEN GOOD 66 GOOD
MAX LVORI EARLY 4 4 4
MAX LVORI LATE 4 4 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
FORECAST FOR DAYS 3 THROUGH 7
FRIDAY
MOSTLY CLOUDY. LOWS AROUND 14. HIGHS IN THE LOWER 30S.
SOUTHWEST WINDS AROUND 5 MPH.
SATURDAY
MOSTLY CLOUDY. LOWS AROUND 14. HIGHS IN THE UPPER
20S. SOUTHWEST WINDS AROUND 5 MPH.
SUNDAY
MOSTLY CLOUDY. LOWS AROUND 15. HIGHS AROUND 30. WEST
WINDS 5 TO 10 MPH.
MONDAY
MOSTLY CLOUDY. LOWS AROUND 18. HIGHS IN THE UPPER 30S.
SOUTHWEST WINDS 5 TO 10 MPH.
TUESDAY
MOSTLY CLOUDY WITH A CHANCE OF FREEZING RAIN. LOWS IN
THE UPPER 20S. HIGHS IN THE UPPER 30S. SOUTHWEST WINDS 10 TO
15 MPH.
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