593
FNUS51 KPBZ 311757
FWFPBZ
FIRE WEATHER PLANNING FORECAST
NATIONAL WEATHER SERVICE PITTSBURGH PA
1257 PM EST WED DEC 31 2025
DISCUSSION
FIRE POTENTIAL WILL REMAIN LOW THROUGH THE PERIOD, AND WINDS WILL
LESSEN THURSDAY AND FRIDAY.
OHZ039-010915-
TUSCARAWAS-
INCLUDING THE CITIES OF NEW PHILADELPHIA AND DOVER
1257 PM EST WED DEC 31 2025
TONIGHT THU THU NIGHT FRI
CLOUD COVER MCLDY PCLDY MCLDY PCLDY
PRECIP TYPE SNOW NONE NONE NONE
CHANCE PRECIP (%) 100 0 0 0
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 10 (-8) 23 (-8) 13 31
RH % (24H TREND) 87 (-3) 53 (-23) 87 58
WIND 20FT/EARLY(MPH) W 12 G23 W 6 LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) NW 10 G23 W 7 LGT/VAR W 6
PRECIP AMOUNT 0.10 0.00 0.00 0.00
PRECIP DURATION 7
PRECIP BEGIN 6 PM
PRECIP END 3 AM
MIXING HGT(M-AGL/MSL) 1050 770
MIXING HGT(FT-AGL/MSL) 3440 2520
TRANSPORT WND (MPH) W 17 W 15
VENT RATE (KT-FT) 51600 32760
CATEGORY DAY 4 3
INVERSION NONE NONE 8PM 18F/8AM
DISPERSION 4 3
MAX ADI EARLY 34 FAIR 42 GEN GOOD 8 POOR 30 FAIR
MAX ADI LATE 33 FAIR 58 GEN GOOD 4 VERY POOR 42 GEN GOOD
MAX LVORI EARLY 4 4 4 4
MAX LVORI LATE 4 1 5 2
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ040-010915-
CARROLL-
INCLUDING THE CITIES OF CARROLLTON AND MALVERN
1257 PM EST WED DEC 31 2025
TONIGHT THU THU NIGHT FRI
CLOUD COVER MCLDY PCLDY MCLDY PCLDY
PRECIP TYPE SNOW NONE NONE NONE
CHANCE PRECIP (%) 100 0 0 0
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 11 (-7) 22 (-8) 13 30
RH % (24H TREND) 87 (-1) 54 (-23) 86 58
WIND 20FT/EARLY(MPH) W 13 G23 W 8 LGT/VAR SW 5
WIND 20FT/LATE(MPH) NW 11 G23 W 8 LGT/VAR W 7
PRECIP AMOUNT 0.10 0.00 0.00 0.00
PRECIP DURATION 7
PRECIP BEGIN 6 PM
PRECIP END 3 AM
MIXING HGT(M-AGL/MSL) 1010 770
MIXING HGT(FT-AGL/MSL) 3310 2520
TRANSPORT WND (MPH) W 20 W 17
VENT RATE (KT-FT) 56270 37800
CATEGORY DAY 4 3
INVERSION NONE NONE 7PM 15F/4AM
DISPERSION 4 3
MAX ADI EARLY 34 FAIR 50 GEN GOOD 9 POOR 30 FAIR
MAX ADI LATE 34 FAIR 65 GOOD 7 POOR 49 GEN GOOD
MAX LVORI EARLY 4 3 4 4
MAX LVORI LATE 4 1 5 2
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ041-010915-
COLUMBIANA-
INCLUDING THE CITIES OF EAST LIVERPOOL, SALEM, AND COLUMBIANA
1257 PM EST WED DEC 31 2025
TONIGHT THU THU NIGHT FRI
CLOUD COVER MCLDY PCLDY MCLDY PCLDY
PRECIP TYPE SNOW NONE NONE NONE
CHANCE PRECIP (%) 100 0 0 0
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 11 (-6) 21 (-9) 13 29
RH % (24H TREND) 87 (0) 56 (-22) 86 60
WIND 20FT/EARLY(MPH) W 13 G23 W 8 SW 5 SW 5
WIND 20FT/LATE(MPH) NW 10 G23 W 8 LGT/VAR W 7
PRECIP AMOUNT 0.11 0.00 0.00 0.00
PRECIP DURATION 7
PRECIP BEGIN 6 PM
PRECIP END 3 AM
MIXING HGT(M-AGL/MSL) 990 790
MIXING HGT(FT-AGL/MSL) 3240 2600
TRANSPORT WND (MPH) W 21 W 17
VENT RATE (KT-FT) 58320 39000
CATEGORY DAY 4 3
INVERSION NONE NONE 7PM 15F/4AM
DISPERSION 4 3
MAX ADI EARLY 35 FAIR 59 GEN GOOD 10 POOR 30 FAIR
MAX ADI LATE 34 FAIR 61 GOOD 9 POOR 48 GEN GOOD
MAX LVORI EARLY 4 3 4 4
MAX LVORI LATE 4 1 4 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ048-010915-
COSHOCTON-
INCLUDING THE CITY OF COSHOCTON
1257 PM EST WED DEC 31 2025
TONIGHT THU THU NIGHT FRI
CLOUD COVER MCLDY PCLDY MCLDY PCLDY
PRECIP TYPE SNOW NONE NONE NONE
CHANCE PRECIP (%) 90 0 0 0
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 10 (-9) 23 (-8) 14 31
RH % (24H TREND) 87 (-9) 53 (-23) 87 57
WIND 20FT/EARLY(MPH) W 11 G22 W 5 LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) NW 8 G21 W 6 LGT/VAR W 5
PRECIP AMOUNT 0.08 0.00 0.00 0.00
PRECIP DURATION 7
PRECIP BEGIN 6 PM
PRECIP END 3 AM
MIXING HGT(M-AGL/MSL) 1030 740
MIXING HGT(FT-AGL/MSL) 3390 2430
TRANSPORT WND (MPH) W 16 W 14
VENT RATE (KT-FT) 47460 29160
CATEGORY DAY 3 3
INVERSION 4AM 13F/9AM 9PM 19F/8AM
DISPERSION 3 3
MAX ADI EARLY 34 FAIR 39 FAIR 8 POOR 28 FAIR
MAX ADI LATE 29 FAIR 47 GEN GOOD 4 VERY POOR 38 FAIR
MAX LVORI EARLY 4 4 4 4
MAX LVORI LATE 4 2 6 2
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ049-010915-
HARRISON-
INCLUDING THE CITY OF CADIZ
1257 PM EST WED DEC 31 2025
TONIGHT THU THU NIGHT FRI
CLOUD COVER MCLDY PCLDY MCLDY PCLDY
PRECIP TYPE SNOW NONE NONE NONE
CHANCE PRECIP (%) 100 0 0 0
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 11 (-7) 23 (-8) 13 32
RH % (24H TREND) 87 (-3) 51 (-22) 84 55
WIND 20FT/EARLY(MPH) W 12 G23 W 7 LGT/VAR SW 5
WIND 20FT/LATE(MPH) NW 10 G23 W 7 LGT/VAR W 6
PRECIP AMOUNT 0.14 0.00 0.00 0.00
PRECIP DURATION 7
PRECIP BEGIN 6 PM
PRECIP END 4 AM
MIXING HGT(M-AGL/MSL) 1060 810
MIXING HGT(FT-AGL/MSL) 3460 2650
TRANSPORT WND (MPH) W 18 W 15
VENT RATE (KT-FT) 55360 34450
CATEGORY DAY 4 3
INVERSION NONE NONE 7PM 15F/4AM
DISPERSION 4 3
MAX ADI EARLY 33 FAIR 46 GEN GOOD 8 POOR 33 FAIR
MAX ADI LATE 32 FAIR 62 GOOD 5 VERY POOR 45 GEN GOOD
MAX LVORI EARLY 4 4 4 4
MAX LVORI LATE 4 1 5 2
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ050-010915-
JEFFERSON OH-
INCLUDING THE CITY OF STEUBENVILLE
1257 PM EST WED DEC 31 2025
TONIGHT THU THU NIGHT FRI
CLOUD COVER MCLDY PCLDY MCLDY PCLDY
PRECIP TYPE SNOW NONE NONE NONE
CHANCE PRECIP (%) 100 0 0 0
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 13 (-5) 23 (-8) 13 31
RH % (24H TREND) 84 (-6) 50 (-22) 81 54
WIND 20FT/EARLY(MPH) W 13 G23 W 8 LGT/VAR SW 5
WIND 20FT/LATE(MPH) NW 11 G23 W 8 LGT/VAR W 7
PRECIP AMOUNT 0.12 0.00 0.00 0.00
PRECIP DURATION 8
PRECIP BEGIN 6 PM
PRECIP END 4 AM
MIXING HGT(M-AGL/MSL) 1080 860
MIXING HGT(FT-AGL/MSL) 3530 2810
TRANSPORT WND (MPH) W 20 W 15
VENT RATE (KT-FT) 60010 36530
CATEGORY DAY 4 3
INVERSION NONE NONE 7PM 15F/4AM
DISPERSION 4 3
MAX ADI EARLY 32 FAIR 51 GEN GOOD 9 POOR 34 FAIR
MAX ADI LATE 33 FAIR 66 GOOD 8 POOR 49 GEN GOOD
MAX LVORI EARLY 3 3 4 4
MAX LVORI LATE 4 1 4 2
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ057-010915-
MUSKINGUM-
INCLUDING THE CITY OF ZANESVILLE
1257 PM EST WED DEC 31 2025
TONIGHT THU THU NIGHT FRI
CLOUD COVER MCLDY PCLDY MCLDY PCLDY
PRECIP TYPE SNOW NONE NONE NONE
CHANCE PRECIP (%) 90 0 0 0
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 11 (-8) 25 (-8) 15 33
RH % (24H TREND) 88 (-2) 51 (-21) 84 53
WIND 20FT/EARLY(MPH) W 11 G23 LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) NW 8 G23 W 6 LGT/VAR LGT/VAR
PRECIP AMOUNT 0.08 0.00 0.00 0.00
PRECIP DURATION 7
PRECIP BEGIN 6 PM
PRECIP END 4 AM
MIXING HGT(M-AGL/MSL) 1010 700
MIXING HGT(FT-AGL/MSL) 3300 2290
TRANSPORT WND (MPH) W 15 W 13
VENT RATE (KT-FT) 42900 25190
CATEGORY DAY 3 3
INVERSION 5AM 15F/9AM 9PM 22F/9AM
DISPERSION 3 3
MAX ADI EARLY 33 FAIR 34 FAIR 5 VERY POOR 23 FAIR
MAX ADI LATE 33 FAIR 48 GEN GOOD 3 VERY POOR 33 FAIR
MAX LVORI EARLY 4 4 4 4
MAX LVORI LATE 4 1 5 2
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ058-010915-
GUERNSEY-
INCLUDING THE CITY OF CAMBRIDGE
1257 PM EST WED DEC 31 2025
TONIGHT THU THU NIGHT FRI
CLOUD COVER MCLDY PCLDY MCLDY PCLDY
PRECIP TYPE SNOW NONE NONE NONE
CHANCE PRECIP (%) 90 0 0 0
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 11 (-8) 25 (-8) 14 34
RH % (24H TREND) 88 (-6) 49 (-22) 82 52
WIND 20FT/EARLY(MPH) W 10 G23 W 5 LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) NW 9 G23 W 6 LGT/VAR W 5
PRECIP AMOUNT 0.10 0.00 0.00 0.00
PRECIP DURATION 8
PRECIP BEGIN 6 PM
PRECIP END 4 AM
MIXING HGT(M-AGL/MSL) 1060 780
MIXING HGT(FT-AGL/MSL) 3460 2560
TRANSPORT WND (MPH) W 16 W 14
VENT RATE (KT-FT) 48440 30720
CATEGORY DAY 3 3
INVERSION NONE NONE 8PM 20F/8AM
DISPERSION 3 3
MAX ADI EARLY 32 FAIR 38 FAIR 5 VERY POOR 28 FAIR
MAX ADI LATE 34 FAIR 55 GEN GOOD 3 VERY POOR 41 GEN GOOD
MAX LVORI EARLY 4 4 4 4
MAX LVORI LATE 4 1 5 2
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ059-010915-
BELMONT-
INCLUDING THE CITIES OF MARTINS FERRY AND ST. CLAIRSVILLE
1257 PM EST WED DEC 31 2025
TONIGHT THU THU NIGHT FRI
CLOUD COVER MCLDY PCLDY MCLDY PCLDY
PRECIP TYPE SNOW NONE NONE NONE
CHANCE PRECIP (%) 100 0 0 0
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 12 (-7) 24 (-9) 14 35
RH % (24H TREND) 89 (+2) 49 (-21) 82 53
WIND 20FT/EARLY(MPH) W 12 G23 W 7 LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) NW 11 G23 W 7 LGT/VAR W 6
PRECIP AMOUNT 0.12 0.00 0.00 0.00
PRECIP DURATION 8
PRECIP BEGIN 6 PM
PRECIP END 5 AM
MIXING HGT(M-AGL/MSL) 1070 810
MIXING HGT(FT-AGL/MSL) 3500 2650
TRANSPORT WND (MPH) W 17 W 14
VENT RATE (KT-FT) 52500 31800
CATEGORY DAY 4 3
INVERSION NONE NONE 7PM 22F/9AM
DISPERSION 4 3
MAX ADI EARLY 34 FAIR 43 GEN GOOD 8 POOR 30 FAIR
MAX ADI LATE 35 FAIR 60 GEN GOOD 5 VERY POOR 40 FAIR
MAX LVORI EARLY 4 4 4 4
MAX LVORI LATE 4 1 4 2
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ068-010915-
NOBLE-
INCLUDING THE CITY OF CALDWELL
1257 PM EST WED DEC 31 2025
TONIGHT THU THU NIGHT FRI
CLOUD COVER MCLDY PCLDY MCLDY PCLDY
PRECIP TYPE SNOW NONE NONE NONE
CHANCE PRECIP (%) 90 0 0 0
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 13 (-5) 26 (-8) 15 35
RH % (24H TREND) 89 (-1) 46 (-21) 79 51
WIND 20FT/EARLY(MPH) W 9 G23 W 5 LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) NW 9 G23 W 6 LGT/VAR W 5
PRECIP AMOUNT 0.09 0.00 0.00 0.00
PRECIP DURATION 9
PRECIP BEGIN 6 PM
PRECIP END 5 AM
MIXING HGT(M-AGL/MSL) 1060 780
MIXING HGT(FT-AGL/MSL) 3470 2570
TRANSPORT WND (MPH) W 16 W 13
VENT RATE (KT-FT) 48580 28270
CATEGORY DAY 3 3
INVERSION NONE NONE 8PM 23F/9AM
DISPERSION 3 3
MAX ADI EARLY 29 FAIR 37 FAIR 5 VERY POOR 25 FAIR
MAX ADI LATE 31 FAIR 55 GEN GOOD 3 VERY POOR 36 FAIR
MAX LVORI EARLY 4 4 3 4
MAX LVORI LATE 4 1 4 2
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ069-010915-
MONROE-
INCLUDING THE CITY OF WOODSFIELD
1257 PM EST WED DEC 31 2025
TONIGHT THU THU NIGHT FRI
CLOUD COVER MCLDY PCLDY MCLDY PCLDY
PRECIP TYPE SNOW NONE NONE NONE
CHANCE PRECIP (%) 100 0 0 0
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 14 (-4) 26 (-8) 15 36
RH % (24H TREND) 88 (+2) 45 (-21) 78 51
WIND 20FT/EARLY(MPH) W 9 G23 W 5 LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) NW 9 G23 W 6 LGT/VAR W 5
PRECIP AMOUNT 0.13 0.00 0.00 0.00
PRECIP DURATION 9
PRECIP BEGIN 6 PM
PRECIP END 5 AM
MIXING HGT(M-AGL/MSL) 1110 850
MIXING HGT(FT-AGL/MSL) 3640 2790
TRANSPORT WND (MPH) W 16 W 13
VENT RATE (KT-FT) 50960 30690
CATEGORY DAY 3 3
INVERSION NONE NONE 8PM 23F/9AM
DISPERSION 3 3
MAX ADI EARLY 29 FAIR 40 FAIR 6 VERY POOR 27 FAIR
MAX ADI LATE 31 FAIR 57 GEN GOOD 3 VERY POOR 36 FAIR
MAX LVORI EARLY 4 3 3 4
MAX LVORI LATE 4 1 4 2
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ007-010915-
MERCER-
INCLUDING THE CITIES OF SHARON, HERMITAGE, AND GROVE CITY
1257 PM EST WED DEC 31 2025
TONIGHT THU THU NIGHT FRI
CLOUD COVER MCLDY PCLDY MCLDY MCLDY
PRECIP TYPE SNOW SNOW SNOW SNOW
CHANCE PRECIP (%) 100 20 30 20
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 10 (-5) 20 (-8) 11 26
RH % (24H TREND) 94 (+4) 64 (-18) 90 68
WIND 20FT/EARLY(MPH) W 13 G23 W 9 SW 7 SW 7
WIND 20FT/LATE(MPH) NW 11 G23 W 10 SW 6 W 8
PRECIP AMOUNT 0.13 0.00 0.00 0.00
PRECIP DURATION 7 1 2 1
PRECIP BEGIN 6 PM CONTINUING 7 PM CONTINUING
PRECIP END CONTINUING 12 PM CONTINUING 1 PM
MIXING HGT(M-AGL/MSL) 1310 840
MIXING HGT(FT-AGL/MSL) 4310 2750
TRANSPORT WND (MPH) W 22 W 17
VENT RATE (KT-FT) 81890 41250
CATEGORY DAY 4 3
INVERSION NONE NONE 7PM 14F/4AM
DISPERSION 4 3
MAX ADI EARLY 34 FAIR 58 GEN GOOD 17 GEN POOR 32 FAIR
MAX ADI LATE 33 FAIR 62 GOOD 12 POOR 41 GEN GOOD
MAX LVORI EARLY 4 3 4 4
MAX LVORI LATE 4 3 5 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ008-010915-
VENANGO-
INCLUDING THE CITIES OF OIL CITY AND FRANKLIN
1257 PM EST WED DEC 31 2025
TONIGHT THU THU NIGHT FRI
CLOUD COVER MCLDY PCLDY MCLDY MCLDY
PRECIP TYPE SNOW SNOW SNOW SNOW
CHANCE PRECIP (%) 100 20 40 20
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 11 (-4) 19 (-8) 11 26
RH % (24H TREND) 94 (+3) 66 (-16) 90 69
WIND 20FT/EARLY(MPH) W 10 G23 W 7 SW 6 SW 6
WIND 20FT/LATE(MPH) NW 9 G22 W 9 G17 SW 6 W 7
PRECIP AMOUNT 0.16 0.01 0.00 0.00
PRECIP DURATION 8 1 2 1
PRECIP BEGIN 6 PM CONTINUING 7 PM CONTINUING
PRECIP END CONTINUING 12 PM CONTINUING 1 PM
MIXING HGT(M-AGL/MSL) 1520 940
MIXING HGT(FT-AGL/MSL) 4980 3080
TRANSPORT WND (MPH) W 23 W 21
VENT RATE (KT-FT) 99600 55440
CATEGORY DAY 4 4
INVERSION NONE NONE NONE NONE
DISPERSION 4 4
MAX ADI EARLY 31 FAIR 62 GOOD 19 GEN POOR 37 FAIR
MAX ADI LATE 30 FAIR 70 GOOD 12 POOR 49 GEN GOOD
MAX LVORI EARLY 4 4 4 4
MAX LVORI LATE 4 3 5 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ009-010915-
FOREST-
INCLUDING THE CITY OF TIONESTA
1257 PM EST WED DEC 31 2025
TONIGHT THU THU NIGHT FRI
CLOUD COVER MCLDY MCLDY MCLDY MCLDY
PRECIP TYPE SNOW SNOW SNOW SNOW
CHANCE PRECIP (%) 100 20 40 20
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 11 (-4) 19 (-7) 10 25
RH % (24H TREND) 91 (+3) 61 (-16) 88 65
WIND 20FT/EARLY(MPH) W 8 G23 W 6 W 5 SW 6
WIND 20FT/LATE(MPH) NW 8 G22 W 8 G18 SW 5 W 7 G17
PRECIP AMOUNT 0.18 0.01 0.00 0.00
PRECIP DURATION 7 1 2 1
PRECIP BEGIN 6 PM CONTINUING 7 PM CONTINUING
PRECIP END CONTINUING 11 AM CONTINUING 1 PM
MIXING HGT(M-AGL/MSL) 1640 1000
MIXING HGT(FT-AGL/MSL) 5380 3270
TRANSPORT WND (MPH) W 25 W 22
VENT RATE (KT-FT) 118360 62130
CATEGORY DAY 5 4
INVERSION NONE NONE NONE NONE
DISPERSION 5 4
MAX ADI EARLY 30 FAIR 66 GOOD 14 GEN POOR 42 GEN GOOD
MAX ADI LATE 30 FAIR 79 GOOD 12 POOR 54 GEN GOOD
MAX LVORI EARLY 4 3 4 4
MAX LVORI LATE 4 1 5 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ013-010915-
LAWRENCE-
INCLUDING THE CITIES OF NEW CASTLE AND ELLWOOD CITY
1257 PM EST WED DEC 31 2025
TONIGHT THU THU NIGHT FRI
CLOUD COVER MCLDY PCLDY MCLDY PCLDY
PRECIP TYPE SNOW NONE SNOW NONE
CHANCE PRECIP (%) 100 0 20 0
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 10 (-6) 21 (-9) 11 28
RH % (24H TREND) 93 (+6) 59 (-20) 88 63
WIND 20FT/EARLY(MPH) W 12 G22 W 7 LGT/VAR SW 5
WIND 20FT/LATE(MPH) NW 10 G21 W 8 LGT/VAR W 7
PRECIP AMOUNT 0.11 0.00 0.00 0.00
PRECIP DURATION 7 1
PRECIP BEGIN 6 PM 7 PM
PRECIP END 3 AM 6 AM
MIXING HGT(M-AGL/MSL) 1230 800
MIXING HGT(FT-AGL/MSL) 4030 2610
TRANSPORT WND (MPH) W 20 W 17
VENT RATE (KT-FT) 68510 39150
CATEGORY DAY 4 3
INVERSION NONE NONE 7PM 14F/4AM
DISPERSION 4 3
MAX ADI EARLY 34 FAIR 55 GEN GOOD 9 POOR 30 FAIR
MAX ADI LATE 36 FAIR 57 GEN GOOD 9 POOR 40 FAIR
MAX LVORI EARLY 4 3 4 3
MAX LVORI LATE 4 3 5 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ014-010915-
BUTLER-
INCLUDING THE CITY OF BUTLER
1257 PM EST WED DEC 31 2025
TONIGHT THU THU NIGHT FRI
CLOUD COVER MCLDY PCLDY MCLDY PCLDY
PRECIP TYPE SNOW NONE SNOW NONE
CHANCE PRECIP (%) 100 0 20 0
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 10 (-6) 21 (-8) 10 29
RH % (24H TREND) 95 (+7) 60 (-20) 88 65
WIND 20FT/EARLY(MPH) W 11 G23 W 8 W 5 SW 5
WIND 20FT/LATE(MPH) NW 10 G22 W 9 LGT/VAR W 7
PRECIP AMOUNT 0.15 0.00 0.00 0.00
PRECIP DURATION 7 1
PRECIP BEGIN 6 PM 7 PM
PRECIP END 3 AM 6 AM
MIXING HGT(M-AGL/MSL) 1260 870
MIXING HGT(FT-AGL/MSL) 4130 2850
TRANSPORT WND (MPH) W 22 W 18
VENT RATE (KT-FT) 78470 45600
CATEGORY DAY 4 3
INVERSION NONE NONE 7PM 14F/4AM
DISPERSION 4 3
MAX ADI EARLY 33 FAIR 57 GEN GOOD 10 POOR 34 FAIR
MAX ADI LATE 35 FAIR 60 GEN GOOD 11 POOR 42 GEN GOOD
MAX LVORI EARLY 4 3 4 4
MAX LVORI LATE 4 2 5 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ015-010915-
CLARION-
INCLUDING THE CITY OF CLARION
1257 PM EST WED DEC 31 2025
TONIGHT THU THU NIGHT FRI
CLOUD COVER MCLDY PCLDY MCLDY MCLDY
PRECIP TYPE SNOW NONE SNOW NONE
CHANCE PRECIP (%) 100 0 30 0
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 11 (-4) 19 (-8) 11 26
RH % (24H TREND) 91 (+4) 63 (-16) 87 66
WIND 20FT/EARLY(MPH) W 10 G23 W 7 G18 W 5 SW 6
WIND 20FT/LATE(MPH) NW 9 G23 W 8 G18 SW 5 W 7
PRECIP AMOUNT 0.14 0.00 0.00 0.00
PRECIP DURATION 7 2
PRECIP BEGIN 6 PM 7 PM
PRECIP END 4 AM 6 AM
MIXING HGT(M-AGL/MSL) 1530 910
MIXING HGT(FT-AGL/MSL) 5030 2970
TRANSPORT WND (MPH) W 24 W 20
VENT RATE (KT-FT) 105630 50490
CATEGORY DAY 5 4
INVERSION NONE NONE NONE NONE
DISPERSION 5 4
MAX ADI EARLY 33 FAIR 61 GOOD 13 GEN POOR 40 FAIR
MAX ADI LATE 33 FAIR 73 GOOD 11 POOR 48 GEN GOOD
MAX LVORI EARLY 4 3 4 4
MAX LVORI LATE 4 2 5 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ016-010915-
JEFFERSON PA-
INCLUDING THE CITIES OF PUNXSUTAWNEY AND BROOKVILLE
1257 PM EST WED DEC 31 2025
TONIGHT THU THU NIGHT FRI
CLOUD COVER MCLDY PCLDY MCLDY MCLDY
PRECIP TYPE SNOW NONE SNOW NONE
CHANCE PRECIP (%) 100 0 20 0
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 11 (-4) 19 (-7) 10 25
RH % (24H TREND) 87 (+2) 60 (-16) 83 63
WIND 20FT/EARLY(MPH) W 11 G23 W 9 G19 W 7 SW 7 G17
WIND 20FT/LATE(MPH) NW 11 G23 W 10 G20 SW 6 W 9 G18
PRECIP AMOUNT 0.17 0.00 0.00 0.00
PRECIP DURATION 8 1
PRECIP BEGIN 6 PM 7 PM
PRECIP END 4 AM 6 AM
MIXING HGT(M-AGL/MSL) 1570 920
MIXING HGT(FT-AGL/MSL) 5170 3020
TRANSPORT WND (MPH) W 25 W 21
VENT RATE (KT-FT) 113740 54360
CATEGORY DAY 5 4
INVERSION NONE NONE NONE NONE
DISPERSION 5 4
MAX ADI EARLY 34 FAIR 65 GOOD 27 FAIR 44 GEN GOOD
MAX ADI LATE 34 FAIR 78 GOOD 18 GEN POOR 50 GEN GOOD
MAX LVORI EARLY 4 3 4 3
MAX LVORI LATE 4 1 4 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ020-010915-
BEAVER-
INCLUDING THE CITIES OF ALIQUIPPA, BEAVER FALLS, AMBRIDGE,
AND MONACA
1257 PM EST WED DEC 31 2025
TONIGHT THU THU NIGHT FRI
CLOUD COVER MCLDY PCLDY MCLDY PCLDY
PRECIP TYPE SNOW NONE NONE NONE
CHANCE PRECIP (%) 100 0 0 0
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 13 (-5) 22 (-8) 13 30
RH % (24H TREND) 89 (+4) 54 (-22) 83 57
WIND 20FT/EARLY(MPH) W 11 G23 W 7 LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) NW 10 G23 W 8 LGT/VAR W 6
PRECIP AMOUNT 0.12 0.00 0.00 0.00
PRECIP DURATION 7
PRECIP BEGIN 6 PM
PRECIP END 4 AM
MIXING HGT(M-AGL/MSL) 1130 880
MIXING HGT(FT-AGL/MSL) 3720 2900
TRANSPORT WND (MPH) W 20 W 17
VENT RATE (KT-FT) 63240 43500
CATEGORY DAY 4 3
INVERSION NONE NONE 7PM 16F/4AM
DISPERSION 4 3
MAX ADI EARLY 31 FAIR 67 GOOD 10 POOR 31 FAIR
MAX ADI LATE 33 FAIR 68 GOOD 8 POOR 51 GEN GOOD
MAX LVORI EARLY 4 3 4 4
MAX LVORI LATE 4 1 4 2
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ021-010915-
ALLEGHENY-
INCLUDING THE CITY OF PITTSBURGH METRO AREA
1257 PM EST WED DEC 31 2025
TONIGHT THU THU NIGHT FRI
CLOUD COVER MCLDY PCLDY MCLDY PCLDY
PRECIP TYPE SNOW NONE NONE NONE
CHANCE PRECIP (%) 100 0 0 0
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 14 (-3) 23 (-8) 14 31
RH % (24H TREND) 91 (+4) 54 (-22) 85 58
WIND 20FT/EARLY(MPH) W 13 G23 W 9 W 5 SW 5
WIND 20FT/LATE(MPH) NW 12 G23 W 10 LGT/VAR W 8
PRECIP AMOUNT 0.13 0.00 0.00 0.00
PRECIP DURATION 8
PRECIP BEGIN 6 PM
PRECIP END 4 AM
MIXING HGT(M-AGL/MSL) 1160 930
MIXING HGT(FT-AGL/MSL) 3820 3050
TRANSPORT WND (MPH) W 20 W 16
VENT RATE (KT-FT) 64940 42700
CATEGORY DAY 4 3
INVERSION NONE NONE 7PM 16F/4AM
DISPERSION 4 3
MAX ADI EARLY 32 FAIR 64 GOOD 9 POOR 30 FAIR
MAX ADI LATE 34 FAIR 64 GOOD 8 POOR 46 GEN GOOD
MAX LVORI EARLY 4 3 4 4
MAX LVORI LATE 4 1 4 2
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ022-010915-
ARMSTRONG-
INCLUDING THE CITIES OF KITTANNING AND FORD CITY
1257 PM EST WED DEC 31 2025
TONIGHT THU THU NIGHT FRI
CLOUD COVER MCLDY PCLDY MCLDY MCLDY
PRECIP TYPE SNOW NONE SNOW NONE
CHANCE PRECIP (%) 100 0 10 0
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 12 (-5) 22 (-7) 11 29
RH % (24H TREND) 93 (+6) 59 (-20) 87 64
WIND 20FT/EARLY(MPH) W 11 G23 W 8 G18 W 5 SW 6
WIND 20FT/LATE(MPH) NW 11 G23 W 9 G18 LGT/VAR W 7
PRECIP AMOUNT 0.15 0.00 0.00 0.00
PRECIP DURATION 8 1
PRECIP BEGIN 6 PM 7 PM
PRECIP END 4 AM 6 AM
MIXING HGT(M-AGL/MSL) 1330 940
MIXING HGT(FT-AGL/MSL) 4370 3100
TRANSPORT WND (MPH) W 23 W 18
VENT RATE (KT-FT) 87400 49600
CATEGORY DAY 4 3
INVERSION NONE NONE 8PM 14F/4AM
DISPERSION 4 3
MAX ADI EARLY 31 FAIR 59 GEN GOOD 12 POOR 37 FAIR
MAX ADI LATE 36 FAIR 66 GOOD 11 POOR 45 GEN GOOD
MAX LVORI EARLY 4 3 4 4
MAX LVORI LATE 4 1 5 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ029-010915-
WASHINGTON-
INCLUDING THE CITIES OF WASHINGTON AND CANONSBURG
1257 PM EST WED DEC 31 2025
TONIGHT THU THU NIGHT FRI
CLOUD COVER MCLDY PCLDY MCLDY PCLDY
PRECIP TYPE SNOW NONE NONE NONE
CHANCE PRECIP (%) 100 0 0 0
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 14 (-3) 23 (-8) 13 32
RH % (24H TREND) 87 (-1) 51 (-23) 82 56
WIND 20FT/EARLY(MPH) W 13 G23 W 9 LGT/VAR SW 5
WIND 20FT/LATE(MPH) NW 12 G23 W 9 LGT/VAR W 8
PRECIP AMOUNT 0.14 0.00 0.00 0.00
PRECIP DURATION 9
PRECIP BEGIN 6 PM
PRECIP END 5 AM
MIXING HGT(M-AGL/MSL) 1070 870
MIXING HGT(FT-AGL/MSL) 3510 2850
TRANSPORT WND (MPH) W 21 W 15
VENT RATE (KT-FT) 63180 37050
CATEGORY DAY 4 3
INVERSION NONE NONE 7PM 17F/6AM
DISPERSION 4 3
MAX ADI EARLY 36 FAIR 47 GEN GOOD 9 POOR 28 FAIR
MAX ADI LATE 33 FAIR 63 GOOD 8 POOR 45 GEN GOOD
MAX LVORI EARLY 4 3 4 4
MAX LVORI LATE 4 1 4 2
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ031-010915-
GREENE-
INCLUDING THE CITY OF WAYNESBURG
1257 PM EST WED DEC 31 2025
TONIGHT THU THU NIGHT FRI
CLOUD COVER MCLDY PCLDY MCLDY PCLDY
PRECIP TYPE SNOW NONE NONE NONE
CHANCE PRECIP (%) 100 0 0 0
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 14 (-4) 24 (-8) 14 34
RH % (24H TREND) 89 (+2) 50 (-24) 80 57
WIND 20FT/EARLY(MPH) W 12 G23 W 7 G17 LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) NW 12 G23 W 8 LGT/VAR W 6
PRECIP AMOUNT 0.15 0.00 0.00 0.00
PRECIP DURATION 10
PRECIP BEGIN 6 PM
PRECIP END 6 AM
MIXING HGT(M-AGL/MSL) 1150 930
MIXING HGT(FT-AGL/MSL) 3760 3060
TRANSPORT WND (MPH) W 20 W 15
VENT RATE (KT-FT) 63920 39780
CATEGORY DAY 4 3
INVERSION NONE NONE 7PM 21F/8AM
DISPERSION 4 3
MAX ADI EARLY 31 FAIR 54 GEN GOOD 8 POOR 30 FAIR
MAX ADI LATE 33 FAIR 70 GOOD 5 VERY POOR 45 GEN GOOD
MAX LVORI EARLY 4 3 3 4
MAX LVORI LATE 4 1 4 2
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ073-010915-
WESTMORELAND-
INCLUDING THE CITIES OF MURRYSVILLE, GREENSBURG, NEW KENSINGTON,
LOWER BURRELL, LATROBE, AND MONESSEN
1257 PM EST WED DEC 31 2025
TONIGHT THU THU NIGHT FRI
CLOUD COVER MCLDY PCLDY MCLDY PCLDY
PRECIP TYPE SNOW NONE NONE NONE
CHANCE PRECIP (%) 100 0 0 0
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 13 (-5) 23 (-8) 12 32
RH % (24H TREND) 93 (+5) 56 (-20) 87 61
WIND 20FT/EARLY(MPH) W 14 G24 W 10 G18 W 5 SW 6
WIND 20FT/LATE(MPH) W 13 G24 W 11 G18 LGT/VAR W 8
PRECIP AMOUNT 0.17 0.00 0.00 0.00
PRECIP DURATION 9
PRECIP BEGIN 6 PM
PRECIP END 6 AM
MIXING HGT(M-AGL/MSL) 1210 950
MIXING HGT(FT-AGL/MSL) 3970 3100
TRANSPORT WND (MPH) W 22 W 16
VENT RATE (KT-FT) 75430 43400
CATEGORY DAY 4 3
INVERSION NONE NONE 7PM 15F/4AM
DISPERSION 4 3
MAX ADI EARLY 32 FAIR 56 GEN GOOD 10 POOR 31 FAIR
MAX ADI LATE 35 FAIR 59 GEN GOOD 10 POOR 40 FAIR
MAX LVORI EARLY 4 3 4 4
MAX LVORI LATE 4 1 4 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ074-010915-
HIGHER ELEVATIONS OF WESTMORELAND-
INCLUDING THE CITIES OF LIGONIER AND DONEGAL
1257 PM EST WED DEC 31 2025
TONIGHT THU THU NIGHT FRI
CLOUD COVER MCLDY PCLDY PCLDY MCLDY
PRECIP TYPE SNOW NONE NONE NONE
CHANCE PRECIP (%) 100 0 0 0
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 12 (-4) 21 (-8) 12 31
RH % (24H TREND) 89 (+1) 53 (-19) 78 58
WIND 20FT/EARLY(MPH) W 14 G29 W 10 G23 W 6 G18 W 7 G19
WIND 20FT/LATE(MPH) W 14 G29 W 10 G22 W 5 G18 W 8 G18
PRECIP AMOUNT 0.28 0.00 0.00 0.00
PRECIP DURATION 10
PRECIP BEGIN 6 PM
PRECIP END 6 AM
MIXING HGT(M-AGL/MSL) 1280 960
MIXING HGT(FT-AGL/MSL) 4200 3150
TRANSPORT WND (MPH) W 25 W 20
VENT RATE (KT-FT) 92400 53550
CATEGORY DAY 4 4
INVERSION NONE NONE 7PM 15F/4AM
DISPERSION 4 4
MAX ADI EARLY 33 FAIR 61 GOOD 14 GEN POOR 38 FAIR
MAX ADI LATE 39 FAIR 67 GOOD 12 POOR 46 GEN GOOD
MAX LVORI EARLY 4 3 3 3
MAX LVORI LATE 4 1 4 2
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ075-010915-
FAYETTE-
INCLUDING THE CITY OF UNIONTOWN
1257 PM EST WED DEC 31 2025
TONIGHT THU THU NIGHT FRI
CLOUD COVER MCLDY PCLDY MCLDY PCLDY
PRECIP TYPE SNOW NONE NONE NONE
CHANCE PRECIP (%) 100 0 0 0
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 15 (-3) 24 (-8) 13 34
RH % (24H TREND) 89 (+1) 52 (-22) 83 59
WIND 20FT/EARLY(MPH) SW 12 G23 W 8 G18 LGT/VAR SW 5
WIND 20FT/LATE(MPH) W 12 G24 W 8 LGT/VAR W 7
PRECIP AMOUNT 0.15 0.00 0.00 0.00
PRECIP DURATION 10
PRECIP BEGIN 6 PM
PRECIP END 6 AM
MIXING HGT(M-AGL/MSL) 1190 980
MIXING HGT(FT-AGL/MSL) 3920 3230
TRANSPORT WND (MPH) W 21 W 15
VENT RATE (KT-FT) 70560 41990
CATEGORY DAY 4 3
INVERSION NONE NONE 7PM 17F/5AM
DISPERSION 4 3
MAX ADI EARLY 34 FAIR 65 GOOD 7 POOR 29 FAIR
MAX ADI LATE 34 FAIR 75 GOOD 5 VERY POOR 39 FAIR
MAX LVORI EARLY 4 3 4 4
MAX LVORI LATE 4 1 4 2
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ076-010915-
HIGHER ELEVATIONS OF FAYETTE-
INCLUDING THE CITIES OF CHAMPION AND OHIOPYLE
1257 PM EST WED DEC 31 2025
TONIGHT THU THU NIGHT FRI
CLOUD COVER CLOUDY PCLDY PCLDY PCLDY
PRECIP TYPE SNOW NONE NONE NONE
CHANCE PRECIP (%) 100 0 0 0
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 12 (-3) 21 (-7) 12 32
RH % (24H TREND) 92 (+1) 54 (-20) 81 60
WIND 20FT/EARLY(MPH) W 11 G25 W 8 G21 LGT/VAR SW 5
WIND 20FT/LATE(MPH) W 12 G26 W 8 G18 LGT/VAR W 7
PRECIP AMOUNT 0.30 0.00 0.00 0.00
PRECIP DURATION 11
PRECIP BEGIN 6 PM
PRECIP END 6 AM
MIXING HGT(M-AGL/MSL) 1120 910
MIXING HGT(FT-AGL/MSL) 3680 2980
TRANSPORT WND (MPH) W 24 W 21
VENT RATE (KT-FT) 77280 53640
CATEGORY DAY 4 4
INVERSION NONE NONE 7PM 19F/8AM
DISPERSION 4 4
MAX ADI EARLY 30 FAIR 59 GEN GOOD 9 POOR 35 FAIR
MAX ADI LATE 32 FAIR 77 GOOD 8 POOR 46 GEN GOOD
MAX LVORI EARLY 4 4 3 4
MAX LVORI LATE 4 1 4 2
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ077-010915-
INDIANA-
INCLUDING THE CITY OF INDIANA
1257 PM EST WED DEC 31 2025
TONIGHT THU THU NIGHT FRI
CLOUD COVER MCLDY PCLDY PCLDY MCLDY
PRECIP TYPE SNOW NONE NONE NONE
CHANCE PRECIP (%) 100 0 0 0
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 12 (-5) 21 (-7) 12 29
RH % (24H TREND) 90 (+5) 58 (-18) 85 62
WIND 20FT/EARLY(MPH) W 13 G25 W 10 G20 W 7 G17 SW 7 G18
WIND 20FT/LATE(MPH) W 13 G26 W 11 G21 SW 6 W 9 G18
PRECIP AMOUNT 0.19 0.00 0.00 0.00
PRECIP DURATION 9
PRECIP BEGIN 6 PM
PRECIP END 5 AM
MIXING HGT(M-AGL/MSL) 1410 950
MIXING HGT(FT-AGL/MSL) 4620 3130
TRANSPORT WND (MPH) W 25 W 20
VENT RATE (KT-FT) 101640 53210
CATEGORY DAY 4 4
INVERSION NONE NONE NONE NONE
DISPERSION 4 4
MAX ADI EARLY 33 FAIR 61 GOOD 22 FAIR 43 GEN GOOD
MAX ADI LATE 36 FAIR 72 GOOD 12 POOR 48 GEN GOOD
MAX LVORI EARLY 4 3 4 3
MAX LVORI LATE 4 1 4 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ078-010915-
HIGHER ELEVATIONS OF INDIANA-
INCLUDING THE CITY OF ARMAGH
1257 PM EST WED DEC 31 2025
TONIGHT THU THU NIGHT FRI
CLOUD COVER MCLDY PCLDY PCLDY MCLDY
PRECIP TYPE SNOW NONE NONE NONE
CHANCE PRECIP (%) 100 0 0 0
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 13 (-3) 20 (-8) 12 29
RH % (24H TREND) 88 (+2) 56 (-18) 82 60
WIND 20FT/EARLY(MPH) W 13 G27 W 10 G22 W 7 G17 W 7 G18
WIND 20FT/LATE(MPH) W 13 G27 W 11 G22 W 6 G17 W 9 G19
PRECIP AMOUNT 0.23 0.00 0.00 0.00
PRECIP DURATION 10
PRECIP BEGIN 6 PM
PRECIP END 5 AM
MIXING HGT(M-AGL/MSL) 1340 930
MIXING HGT(FT-AGL/MSL) 4390 3050
TRANSPORT WND (MPH) W 25 W 21
VENT RATE (KT-FT) 96580 54900
CATEGORY DAY 4 4
INVERSION NONE NONE NONE NONE
DISPERSION 4 4
MAX ADI EARLY 33 FAIR 64 GOOD 24 FAIR 46 GEN GOOD
MAX ADI LATE 36 FAIR 72 GOOD 13 GEN POOR 51 GEN GOOD
MAX LVORI EARLY 4 3 3 3
MAX LVORI LATE 4 1 4 2
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ001-010915-
HANCOCK-
INCLUDING THE CITY OF WEIRTON
1257 PM EST WED DEC 31 2025
TONIGHT THU THU NIGHT FRI
CLOUD COVER MCLDY PCLDY MCLDY PCLDY
PRECIP TYPE SNOW NONE NONE NONE
CHANCE PRECIP (%) 100 0 0 0
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 14 (-4) 22 (-8) 15 31
RH % (24H TREND) 83 (-3) 51 (-22) 79 56
WIND 20FT/EARLY(MPH) W 12 G22 W 7 LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) NW 10 G22 W 8 LGT/VAR W 6
PRECIP AMOUNT 0.11 0.00 0.00 0.00
PRECIP DURATION 8
PRECIP BEGIN 6 PM
PRECIP END 4 AM
MIXING HGT(M-AGL/MSL) 1100 900
MIXING HGT(FT-AGL/MSL) 3620 2950
TRANSPORT WND (MPH) W 20 W 16
VENT RATE (KT-FT) 61540 41300
CATEGORY DAY 4 3
INVERSION NONE NONE 7PM 16F/4AM
DISPERSION 4 3
MAX ADI EARLY 30 FAIR 55 GEN GOOD 9 POOR 29 FAIR
MAX ADI LATE 31 FAIR 68 GOOD 8 POOR 48 GEN GOOD
MAX LVORI EARLY 3 3 3 4
MAX LVORI LATE 3 1 4 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ002-010915-
BROOKE-
INCLUDING THE CITIES OF FOLLANSBEE AND WELLSBURG
1257 PM EST WED DEC 31 2025
TONIGHT THU THU NIGHT FRI
CLOUD COVER MCLDY PCLDY MCLDY PCLDY
PRECIP TYPE SNOW NONE NONE NONE
CHANCE PRECIP (%) 100 0 0 0
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 14 (-4) 23 (-8) 15 32
RH % (24H TREND) 83 (-4) 50 (-21) 79 53
WIND 20FT/EARLY(MPH) W 12 G23 W 7 LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) NW 11 G23 W 8 LGT/VAR W 7
PRECIP AMOUNT 0.12 0.00 0.00 0.00
PRECIP DURATION 8
PRECIP BEGIN 6 PM
PRECIP END 4 AM
MIXING HGT(M-AGL/MSL) 1130 910
MIXING HGT(FT-AGL/MSL) 3710 2990
TRANSPORT WND (MPH) W 20 W 15
VENT RATE (KT-FT) 63070 38870
CATEGORY DAY 4 3
INVERSION NONE NONE 7PM 17F/4AM
DISPERSION 4 3
MAX ADI EARLY 32 FAIR 51 GEN GOOD 9 POOR 30 FAIR
MAX ADI LATE 33 FAIR 70 GOOD 8 POOR 48 GEN GOOD
MAX LVORI EARLY 3 3 3 4
MAX LVORI LATE 3 1 4 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ003-010915-
OHIO-
INCLUDING THE CITY OF WHEELING
1257 PM EST WED DEC 31 2025
TONIGHT THU THU NIGHT FRI
CLOUD COVER MCLDY PCLDY MCLDY PCLDY
PRECIP TYPE SNOW NONE NONE NONE
CHANCE PRECIP (%) 100 0 0 0
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 14 (-5) 23 (-9) 14 33
RH % (24H TREND) 86 (0) 50 (-21) 79 55
WIND 20FT/EARLY(MPH) W 13 G23 W 8 LGT/VAR SW 5
WIND 20FT/LATE(MPH) NW 12 G23 W 8 LGT/VAR W 7
PRECIP AMOUNT 0.11 0.00 0.00 0.00
PRECIP DURATION 9
PRECIP BEGIN 6 PM
PRECIP END 5 AM
MIXING HGT(M-AGL/MSL) 1090 840
MIXING HGT(FT-AGL/MSL) 3560 2750
TRANSPORT WND (MPH) W 20 W 14
VENT RATE (KT-FT) 60520 33000
CATEGORY DAY 4 3
INVERSION NONE NONE 7PM 20F/8AM
DISPERSION 4 3
MAX ADI EARLY 35 FAIR 49 GEN GOOD 9 POOR 32 FAIR
MAX ADI LATE 31 FAIR 66 GOOD 7 POOR 42 GEN GOOD
MAX LVORI EARLY 4 3 3 4
MAX LVORI LATE 4 1 4 2
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ004-010915-
MARSHALL-
INCLUDING THE CITY OF MOUNDSVILLE
1257 PM EST WED DEC 31 2025
TONIGHT THU THU NIGHT FRI
CLOUD COVER MCLDY PCLDY MCLDY PCLDY
PRECIP TYPE SNOW NONE NONE NONE
CHANCE PRECIP (%) 100 0 0 0
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 14 (-5) 25 (-7) 16 35
RH % (24H TREND) 88 (+3) 50 (-22) 77 56
WIND 20FT/EARLY(MPH) W 12 G23 W 7 G17 LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) NW 11 G23 W 7 LGT/VAR W 6
PRECIP AMOUNT 0.13 0.00 0.00 0.00
PRECIP DURATION 9
PRECIP BEGIN 6 PM
PRECIP END 5 AM
MIXING HGT(M-AGL/MSL) 1130 880
MIXING HGT(FT-AGL/MSL) 3700 2880
TRANSPORT WND (MPH) W 18 W 14
VENT RATE (KT-FT) 59200 34560
CATEGORY DAY 4 3
INVERSION NONE NONE 7PM 21F/8AM
DISPERSION 4 3
MAX ADI EARLY 32 FAIR 49 GEN GOOD 8 POOR 31 FAIR
MAX ADI LATE 31 FAIR 64 GOOD 4 VERY POOR 41 GEN GOOD
MAX LVORI EARLY 4 3 3 4
MAX LVORI LATE 4 1 4 2
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ012-010915-
WETZEL-
INCLUDING THE CITY OF NEW MARTINSVILLE
1257 PM EST WED DEC 31 2025
TONIGHT THU THU NIGHT FRI
CLOUD COVER MCLDY PCLDY PCLDY PCLDY
PRECIP TYPE SNOW NONE NONE NONE
CHANCE PRECIP (%) 100 0 0 0
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 15 (-2) 24 (-8) 16 35
RH % (24H TREND) 90 (+4) 49 (-23) 78 57
WIND 20FT/EARLY(MPH) W 11 G23 W 6 G17 LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) NW 10 G23 W 6 LGT/VAR W 5
PRECIP AMOUNT 0.16 0.00 0.00 0.00
PRECIP DURATION 10
PRECIP BEGIN 6 PM
PRECIP END 6 AM
MIXING HGT(M-AGL/MSL) 1140 920
MIXING HGT(FT-AGL/MSL) 3740 3000
TRANSPORT WND (MPH) W 17 W 13
VENT RATE (KT-FT) 56100 33000
CATEGORY DAY 4 3
INVERSION NONE NONE 7PM 23F/9AM
DISPERSION 4 3
MAX ADI EARLY 30 FAIR 46 GEN GOOD 6 VERY POOR 30 FAIR
MAX ADI LATE 32 FAIR 62 GOOD 4 VERY POOR 41 GEN GOOD
MAX LVORI EARLY 4 3 3 4
MAX LVORI LATE 4 1 4 2
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ021-010915-
MARION-
INCLUDING THE CITY OF FAIRMONT
1257 PM EST WED DEC 31 2025
TONIGHT THU THU NIGHT FRI
CLOUD COVER MCLDY PCLDY MCLDY PCLDY
PRECIP TYPE SNOW NONE NONE NONE
CHANCE PRECIP (%) 100 0 0 0
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 15 (-2) 24 (-8) 15 35
RH % (24H TREND) 92 (+4) 51 (-22) 84 61
WIND 20FT/EARLY(MPH) W 11 G23 W 7 G17 LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) W 11 G23 W 7 LGT/VAR W 6
PRECIP AMOUNT 0.17 0.00 0.00 0.00
PRECIP DURATION 11
PRECIP BEGIN 6 PM
PRECIP END 6 AM
MIXING HGT(M-AGL/MSL) 1170 970
MIXING HGT(FT-AGL/MSL) 3820 3190
TRANSPORT WND (MPH) W 18 W 14
VENT RATE (KT-FT) 61120 38280
CATEGORY DAY 4 3
INVERSION NONE NONE 7PM 21F/8AM
DISPERSION 4 3
MAX ADI EARLY 31 FAIR 55 GEN GOOD 7 POOR 28 FAIR
MAX ADI LATE 34 FAIR 64 GOOD 4 VERY POOR 37 FAIR
MAX LVORI EARLY 4 3 3 4
MAX LVORI LATE 4 1 5 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ509-010915-
MONONGALIA-
INCLUDING THE CITY OF MORGANTOWN
1257 PM EST WED DEC 31 2025
TONIGHT THU THU NIGHT FRI
CLOUD COVER MCLDY PCLDY MCLDY PCLDY
PRECIP TYPE SNOW NONE NONE NONE
CHANCE PRECIP (%) 100 0 0 0
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 15 (-3) 24 (-8) 15 35
RH % (24H TREND) 90 (+2) 49 (-24) 81 60
WIND 20FT/EARLY(MPH) SW 11 G23 W 7 G17 LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) W 11 G23 W 7 LGT/VAR W 6
PRECIP AMOUNT 0.17 0.00 0.00 0.00
PRECIP DURATION 10
PRECIP BEGIN 6 PM
PRECIP END 6 AM
MIXING HGT(M-AGL/MSL) 1210 1020
MIXING HGT(FT-AGL/MSL) 3960 3350
TRANSPORT WND (MPH) W 20 W 15
VENT RATE (KT-FT) 67320 43550
CATEGORY DAY 4 3
INVERSION NONE NONE 7PM 21F/8AM
DISPERSION 4 3
MAX ADI EARLY 30 FAIR 59 GEN GOOD 7 POOR 31 FAIR
MAX ADI LATE 33 FAIR 71 GOOD 5 VERY POOR 39 FAIR
MAX LVORI EARLY 4 3 3 4
MAX LVORI LATE 4 1 4 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ510-010915-
RIDGES OF EASTERN MONONGALIA AND NORTHWESTERN PRESTON-
INCLUDING THE CITY OF COOPERS ROCK
1257 PM EST WED DEC 31 2025
TONIGHT THU THU NIGHT FRI
CLOUD COVER CLOUDY PCLDY MCLDY PCLDY
PRECIP TYPE SNOW NONE NONE NONE
CHANCE PRECIP (%) 100 0 0 0
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 13 (-2) 22 (-7) 14 33
RH % (24H TREND) 93 (+1) 52 (-23) 83 62
WIND 20FT/EARLY(MPH) W 12 G23 W 8 G18 LGT/VAR SW 5
WIND 20FT/LATE(MPH) W 13 G23 W 7 LGT/VAR W 6
PRECIP AMOUNT 0.27 0.00 0.00 0.00
PRECIP DURATION 11
PRECIP BEGIN 6 PM
PRECIP END 6 AM
MIXING HGT(M-AGL/MSL) 1040 890
MIXING HGT(FT-AGL/MSL) 3410 2920
TRANSPORT WND (MPH) W 21 W 16
VENT RATE (KT-FT) 61380 40880
CATEGORY DAY 4 3
INVERSION NONE NONE 7PM 21F/9AM
DISPERSION 4 3
MAX ADI EARLY 31 FAIR 61 GOOD 8 POOR 33 FAIR
MAX ADI LATE 38 FAIR 71 GOOD 6 VERY POOR 40 FAIR
MAX LVORI EARLY 4 4 3 4
MAX LVORI LATE 4 1 4 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ511-010915-
PRESTON-
INCLUDING THE CITIES OF KINGWOOD AND BRUCETON MILLS
1257 PM EST WED DEC 31 2025
TONIGHT THU THU NIGHT FRI
CLOUD COVER CLOUDY PCLDY PCLDY PCLDY
PRECIP TYPE SNOW NONE NONE NONE
CHANCE PRECIP (%) 100 0 0 0
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 13 (-3) 22 (-8) 13 35
RH % (24H TREND) 94 (+4) 51 (-22) 85 62
WIND 20FT/EARLY(MPH) W 10 G23 W 7 G19 LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) W 10 G23 W 7 LGT/VAR W 6
PRECIP AMOUNT 0.29 0.00 0.00 0.00
PRECIP DURATION 12
PRECIP BEGIN 6 PM
PRECIP END 6 AM
MIXING HGT(M-AGL/MSL) 1100 970
MIXING HGT(FT-AGL/MSL) 3620 3190
TRANSPORT WND (MPH) W 22 W 18
VENT RATE (KT-FT) 68780 51040
CATEGORY DAY 4 3
INVERSION NONE NONE 7PM 16F/5AM
DISPERSION 4 3
MAX ADI EARLY 32 FAIR 69 GOOD 8 POOR 35 FAIR
MAX ADI LATE 38 FAIR 76 GOOD 6 VERY POOR 45 GEN GOOD
MAX LVORI EARLY 4 4 3 4
MAX LVORI LATE 4 1 5 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ512-010915-
EASTERN PRESTON-
INCLUDING THE CITIES OF TERRA ALTA, ROWLESBURG, AND HAZELTON
1257 PM EST WED DEC 31 2025
TONIGHT THU THU NIGHT FRI
CLOUD COVER CLOUDY PCLDY PCLDY PCLDY
PRECIP TYPE SNOW NONE NONE NONE
CHANCE PRECIP (%) 100 0 0 0
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 12 (-2) 21 (-7) 13 33
RH % (24H TREND) 93 (+2) 53 (-24) 84 63
WIND 20FT/EARLY(MPH) W 13 G28 W 10 G24 W 6 G17 W 7 G17
WIND 20FT/LATE(MPH) W 14 G29 W 9 G21 SW 5 W 8 G18
PRECIP AMOUNT 0.37 0.00 0.00 0.00
PRECIP DURATION 12
PRECIP BEGIN 6 PM
PRECIP END 6 AM
MIXING HGT(M-AGL/MSL) 1000 900
MIXING HGT(FT-AGL/MSL) 3290 2940
TRANSPORT WND (MPH) W 26 W 22
VENT RATE (KT-FT) 75670 55860
CATEGORY DAY 4 4
INVERSION NONE NONE 7PM 16F/4AM
DISPERSION 4 4
MAX ADI EARLY 35 FAIR 63 GOOD 13 GEN POOR 40 FAIR
MAX ADI LATE 39 FAIR 71 GOOD 13 GEN POOR 50 GEN GOOD
MAX LVORI EARLY 4 4 3 3
MAX LVORI LATE 4 2 4 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ513-010915-
WESTERN TUCKER-
INCLUDING THE CITIES OF PARSONS, HENDRICKS, AND SAINT GEORGE
1257 PM EST WED DEC 31 2025
TONIGHT THU THU NIGHT FRI
CLOUD COVER MCLDY PCLDY PCLDY PCLDY
PRECIP TYPE SNOW SNOW NONE NONE
CHANCE PRECIP (%) 100 70 0 0
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 13 (-3) 24 (-5) 13 36
RH % (24H TREND) 92 (+4) 48 (-21) 84 60
WIND 20FT/EARLY(MPH) W 12 G28 W 9 G24 LGT/VAR W 5
WIND 20FT/LATE(MPH) W 14 G28 W 9 G20 LGT/VAR W 7
PRECIP AMOUNT 0.36 0.01 0.00 0.00
PRECIP DURATION 12 1
PRECIP BEGIN 6 PM CONTINUING
PRECIP END CONTINUING 8 AM
MIXING HGT(M-AGL/MSL) 1020 970
MIXING HGT(FT-AGL/MSL) 3330 3170
TRANSPORT WND (MPH) W 24 W 20
VENT RATE (KT-FT) 69930 53890
CATEGORY DAY 4 4
INVERSION NONE NONE 7PM 16F/4AM
DISPERSION 4 4
MAX ADI EARLY 36 FAIR 67 GOOD 8 POOR 36 FAIR
MAX ADI LATE 40 FAIR 77 GOOD 9 POOR 45 GEN GOOD
MAX LVORI EARLY 4 4 4 3
MAX LVORI LATE 4 1 4 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ514-010915-
EASTERN TUCKER-
INCLUDING THE CITIES OF DAVIS, THOMAS, AND CANAAN VALLEY
1257 PM EST WED DEC 31 2025
TONIGHT THU THU NIGHT FRI
CLOUD COVER MCLDY PCLDY PCLDY PCLDY
PRECIP TYPE SNOW NONE NONE NONE
CHANCE PRECIP (%) 100 0 0 0
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 10 (-1) 20 (-6) 11 33
RH % (24H TREND) 95 (+4) 55 (-22) 82 67
WIND 20FT/EARLY(MPH) W 16 G42 W 14 G40 W 8 G23 W 8 G23
WIND 20FT/LATE(MPH) W 17 G44 W 11 G31 W 6 G23 W 9 G23
PRECIP AMOUNT 0.43 0.00 0.00 0.00
PRECIP DURATION 11
PRECIP BEGIN 6 PM
PRECIP END 6 AM
MIXING HGT(M-AGL/MSL) 880 870
MIXING HGT(FT-AGL/MSL) 2870 2860
TRANSPORT WND (MPH) W 31 W 23
VENT RATE (KT-FT) 77490 57200
CATEGORY DAY 4 4
INVERSION NONE NONE 6PM 17F/5AM
DISPERSION 4 4
MAX ADI EARLY 45 GEN GOOD 61 GOOD 14 GEN POOR 41 GEN GOOD
MAX ADI LATE 47 GEN GOOD 66 GOOD 17 GEN POOR 51 GEN GOOD
MAX LVORI EARLY 4 4 3 3
MAX LVORI LATE 4 1 3 3
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
FORECAST FOR DAYS 3 THROUGH 7
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. LOWS IN THE UPPER 20S. HIGHS IN THE
UPPER 30S. SOUTHWEST WINDS 10 TO 15 MPH.
WEDNESDAY
MOSTLY CLOUDY WITH A CHANCE OF RAIN. LOWS IN THE
UPPER 20S. SOUTHWEST WINDS 5 TO 10 MPH.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page