469
FNUS51 KPBZ 040420
FWFPBZ
FIRE WEATHER PLANNING FORECAST
NATIONAL WEATHER SERVICE PITTSBURGH PA
1220 AM EDT MON MAY 4 2026
DISCUSSION
MAINLY DRY WEATHER IS EXPECTED INTO THIS AFTERNOON, THOUGH A FEW
STRAY SHOWERS ARE POSSIBLE. SCATTERED SHOWERS AND THUNDERSTORMS
ARE POSSIBLE THIS EVENING AND OVERNIGHT. A SLOW-MOVING COLD FRONT
WILL THEN MAINTAIN SHOWERS AND POSSIBLE THUNDERSTORMS ACROSS THE
REGION THROUGH THURSDAY. FIRE WEATHER CONCERNS ARE LOW THROUGH THE
WEEK.
OHZ039-042030-
TUSCARAWAS-
INCLUDING THE CITIES OF NEW PHILADELPHIA AND DOVER
1220 AM EDT MON MAY 4 2026
TODAY TONIGHT TUE
CLOUD COVER MCLEAR PCLDY MCLDY
PRECIP TYPE NONE TSTMS TSTMS
CHANCE PRECIP (%) 0 60 80
CHANCE OF THUNDER (%) 0 40 30
TEMP (24H TREND) 71 (+12) 57 (+15) 72
RH % (24H TREND) 49 (+16) 81 (+12) 52
WIND 20FT/EARLY(MPH) SW 9 G18 SW 10 G20 SW 12 G22
WIND 20FT/LATE(MPH) SW 11 G21 SW 10 G21 SW 12 G21
PRECIP AMOUNT 0.00 0.05 0.15
PRECIP DURATION 3 6
PRECIP BEGIN 6 PM CONTINUING
PRECIP END CONTINUING CONTINUING
MIXING HGT(M-AGL/MSL) 1670 1450
MIXING HGT(FT-AGL/MSL)5480 4750
TRANSPORT WND (MPH) SW 25 SW 28
VENT RATE (KT-FT) 120560 114000
CATEGORY DAY 5 5
INVERSION 51F/8AM 8PM 59F/5AM
DISPERSION 5 5
MAX ADI EARLY 74 GOOD 28 FAIR 86 GOOD
MAX ADI LATE 108 VERY GOOD17 GEN POOR 93 GOOD
MAX LVORI EARLY 3 3 3
MAX LVORI LATE 1 4 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ040-042030-
CARROLL-
INCLUDING THE CITIES OF CARROLLTON AND MALVERN
1220 AM EDT MON MAY 4 2026
TODAY TONIGHT TUE
CLOUD COVER MCLEAR PCLDY MCLDY
PRECIP TYPE NONE TSTMS TSTMS
CHANCE PRECIP (%) 0 60 80
CHANCE OF THUNDER (%) 0 40 30
TEMP (24H TREND) 70 (+11) 56 (+14) 71
RH % (24H TREND) 47 (+12) 81 (+12) 53
WIND 20FT/EARLY(MPH) SW 10 G18 SW 10 G19 SW 13 G22
WIND 20FT/LATE(MPH) SW 12 G21 SW 11 G21 SW 13 G23
PRECIP AMOUNT 0.00 0.06 0.17
PRECIP DURATION 3 6
PRECIP BEGIN 6 PM CONTINUING
PRECIP END CONTINUING CONTINUING
MIXING HGT(M-AGL/MSL) 1610 1490
MIXING HGT(FT-AGL/MSL)5280 4880
TRANSPORT WND (MPH) SW 25 SW 30
VENT RATE (KT-FT) 116160 126880
CATEGORY DAY 5 5
INVERSION 50F/8AM 8PM 58F/6AM
DISPERSION 5 5
MAX ADI EARLY 70 GOOD 31 FAIR 82 GOOD
MAX ADI LATE 106 VERY GOOD17 GEN POOR 91 GOOD
MAX LVORI EARLY 3 3 3
MAX LVORI LATE 1 4 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ041-042030-
COLUMBIANA-
INCLUDING THE CITIES OF EAST LIVERPOOL, SALEM, AND COLUMBIANA
1220 AM EDT MON MAY 4 2026
TODAY TONIGHT TUE
CLOUD COVER MCLEAR PCLDY MCLDY
PRECIP TYPE NONE TSTMS TSTMS
CHANCE PRECIP (%) 0 70 80
CHANCE OF THUNDER (%) 0 40 30
TEMP (24H TREND) 71 (+12) 57 (+15) 72
RH % (24H TREND) 46 (+11) 81 (+11) 52
WIND 20FT/EARLY(MPH) SW 9 G18 SW 10 G19 SW 12 G22
WIND 20FT/LATE(MPH) SW 11 G20 SW 10 G22 SW 12 G22
PRECIP AMOUNT 0.00 0.09 0.19
PRECIP DURATION 4 6
PRECIP BEGIN 6 PM CONTINUING
PRECIP END CONTINUING CONTINUING
MIXING HGT(M-AGL/MSL) 1710 1290
MIXING HGT(FT-AGL/MSL)5610 4230
TRANSPORT WND (MPH) SW 25 SW 31
VENT RATE (KT-FT) 123420 114210
CATEGORY DAY 5 5
INVERSION 50F/8AM 8PM 58F/6AM
DISPERSION 5 5
MAX ADI EARLY 70 GOOD 30 FAIR 83 GOOD
MAX ADI LATE 107 VERY GOOD17 GEN POOR 87 GOOD
MAX LVORI EARLY 3 3 3
MAX LVORI LATE 1 4 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ048-042030-
COSHOCTON-
INCLUDING THE CITY OF COSHOCTON
1220 AM EDT MON MAY 4 2026
TODAY TONIGHT TUE
CLOUD COVER MCLEAR PCLDY MCLDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 20 60 80
CHANCE OF THUNDER (%) 20 40 30
TEMP (24H TREND) 71 (+11) 57 (+14) 72
RH % (24H TREND) 51 (+19) 82 (+9) 56
WIND 20FT/EARLY(MPH) SW 7 SW 9 G19 SW 10 G20
WIND 20FT/LATE(MPH) SW 10 G20 SW 9 G19 SW 10 G20
PRECIP AMOUNT 0.03 0.07 0.13
PRECIP DURATION 0 3 6
PRECIP BEGIN 4 PM CONTINUING CONTINUING
PRECIP END CONTINUING CONTINUING CONTINUING
MIXING HGT(M-AGL/MSL) 1630 1400
MIXING HGT(FT-AGL/MSL)5340 4580
TRANSPORT WND (MPH) SW 28 SW 26
VENT RATE (KT-FT) 128160 105340
CATEGORY DAY 5 5
INVERSION 54F/9AM 8PM 58F/6AM
DISPERSION 5 5
MAX ADI EARLY 74 GOOD 33 FAIR 98 GOOD
MAX ADI LATE 114 VERY GOOD17 GEN POOR 106 VERY GOOD
MAX LVORI EARLY 3 3 3
MAX LVORI LATE 1 4 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ049-042030-
HARRISON-
INCLUDING THE CITY OF CADIZ
1220 AM EDT MON MAY 4 2026
TODAY TONIGHT TUE
CLOUD COVER MCLEAR PCLDY PCLDY
PRECIP TYPE NONE TSTMS TSTMS
CHANCE PRECIP (%) 0 60 70
CHANCE OF THUNDER (%) 0 40 30
TEMP (24H TREND) 71 (+12) 57 (+16) 73
RH % (24H TREND) 47 (+15) 80 (+12) 47
WIND 20FT/EARLY(MPH) SW 9 G19 SW 9 G20 SW 12 G23
WIND 20FT/LATE(MPH) SW 11 G21 SW 10 G21 SW 12 G23
PRECIP AMOUNT 0.00 0.06 0.11
PRECIP DURATION 3 5
PRECIP BEGIN 7 PM CONTINUING
PRECIP END CONTINUING CONTINUING
MIXING HGT(M-AGL/MSL) 1630 1480
MIXING HGT(FT-AGL/MSL)5340 4860
TRANSPORT WND (MPH) SW 25 SW 26
VENT RATE (KT-FT) 117480 111780
CATEGORY DAY 5 5
INVERSION 51F/8AM 8PM 58F/6AM
DISPERSION 5 5
MAX ADI EARLY 79 GOOD 29 FAIR 85 GOOD
MAX ADI LATE 106 VERY GOOD18 GEN POOR 93 GOOD
MAX LVORI EARLY 3 3 3
MAX LVORI LATE 1 4 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ050-042030-
JEFFERSON OH-
INCLUDING THE CITY OF STEUBENVILLE
1220 AM EDT MON MAY 4 2026
TODAY TONIGHT TUE
CLOUD COVER MCLEAR PCLDY PCLDY
PRECIP TYPE NONE TSTMS TSTMS
CHANCE PRECIP (%) 0 50 60
CHANCE OF THUNDER (%) 0 40 30
TEMP (24H TREND) 71 (+12) 57 (+15) 73
RH % (24H TREND) 44 (+13) 77 (+10) 44
WIND 20FT/EARLY(MPH) SW 9 G18 SW 9 G20 SW 12 G23
WIND 20FT/LATE(MPH) SW 11 G21 SW 10 G21 SW 12 G23
PRECIP AMOUNT 0.00 0.06 0.09
PRECIP DURATION 2 5
PRECIP BEGIN 6 PM CONTINUING
PRECIP END CONTINUING CONTINUING
MIXING HGT(M-AGL/MSL) 1670 1580
MIXING HGT(FT-AGL/MSL)5490 5180
TRANSPORT WND (MPH) SW 24 SW 29
VENT RATE (KT-FT) 115290 129500
CATEGORY DAY 5 5
INVERSION 51F/8AM 8PM 60F/5AM
DISPERSION 5 5
MAX ADI EARLY 76 GOOD 30 FAIR 93 GOOD
MAX ADI LATE 102 VERY GOOD15 GEN POOR 101 VERY GOOD
MAX LVORI EARLY 3 3 3
MAX LVORI LATE 1 3 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ057-042030-
MUSKINGUM-
INCLUDING THE CITY OF ZANESVILLE
1220 AM EDT MON MAY 4 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY PCLDY MCLDY
PRECIP TYPE NONE TSTMS TSTMS
CHANCE PRECIP (%) 0 50 70
CHANCE OF THUNDER (%) 0 40 30
TEMP (24H TREND) 72 (+11) 57 (+15) 73
RH % (24H TREND) 49 (+18) 79 (+7) 49
WIND 20FT/EARLY(MPH) SW 7 SW 8 G19 SW 10 G21
WIND 20FT/LATE(MPH) SW 10 G21 SW 8 G19 SW 11 G21
PRECIP AMOUNT 0.00 0.09 0.12
PRECIP DURATION 2 5
PRECIP BEGIN 6 PM CONTINUING
PRECIP END CONTINUING CONTINUING
MIXING HGT(M-AGL/MSL) 1570 1520
MIXING HGT(FT-AGL/MSL)5150 4990
TRANSPORT WND (MPH) SW 25 SW 26
VENT RATE (KT-FT) 113300 114770
CATEGORY DAY 5 5
INVERSION 55F/9AM 7PM 60F/8AM
DISPERSION 5 5
MAX ADI EARLY 80 GOOD 30 FAIR 111 VERY GOOD
MAX ADI LATE 109 VERY GOOD17 GEN POOR 121 VERY GOOD
MAX LVORI EARLY 3 3 3
MAX LVORI LATE 1 3 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ058-042030-
GUERNSEY-
INCLUDING THE CITY OF CAMBRIDGE
1220 AM EDT MON MAY 4 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE NONE TSTMS TSTMS
CHANCE PRECIP (%) 0 50 70
CHANCE OF THUNDER (%) 0 40 30
TEMP (24H TREND) 72 (+11) 57 (+15) 74
RH % (24H TREND) 47 (+16) 80 (+11) 47
WIND 20FT/EARLY(MPH) S 7 G17 S 7 G19 SW 10 G22
WIND 20FT/LATE(MPH) SW 9 G20 SW 8 G20 SW 10 G21
PRECIP AMOUNT 0.00 0.06 0.12
PRECIP DURATION 2 5
PRECIP BEGIN 6 PM CONTINUING
PRECIP END CONTINUING CONTINUING
MIXING HGT(M-AGL/MSL) 1610 1500
MIXING HGT(FT-AGL/MSL)5300 4930
TRANSPORT WND (MPH) SW 25 SW 29
VENT RATE (KT-FT) 116600 123250
CATEGORY DAY 5 5
INVERSION 51F/8AM 7PM 58F/6AM
DISPERSION 5 5
MAX ADI EARLY 80 GOOD 31 FAIR 119 VERY GOOD
MAX ADI LATE 106 VERY GOOD16 GEN POOR 124 VERY GOOD
MAX LVORI EARLY 3 3 3
MAX LVORI LATE 1 4 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ059-042030-
BELMONT-
INCLUDING THE CITIES OF MARTINS FERRY AND ST. CLAIRSVILLE
1220 AM EDT MON MAY 4 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE NONE TSTMS TSTMS
CHANCE PRECIP (%) 0 50 60
CHANCE OF THUNDER (%) 0 40 20
TEMP (24H TREND) 72 (+12) 57 (+15) 76
RH % (24H TREND) 46 (+15) 79 (+11) 42
WIND 20FT/EARLY(MPH) SW 9 G19 SW 9 G20 SW 12 G23
WIND 20FT/LATE(MPH) SW 11 G21 SW 10 G22 SW 12 G23
PRECIP AMOUNT 0.00 0.06 0.06
PRECIP DURATION 2 4
PRECIP BEGIN 7 PM CONTINUING
PRECIP END CONTINUING CONTINUING
MIXING HGT(M-AGL/MSL) 1630 1620
MIXING HGT(FT-AGL/MSL)5350 5310
TRANSPORT WND (MPH) SW 25 SW 26
VENT RATE (KT-FT) 117700 122130
CATEGORY DAY 5 5
INVERSION 51F/8AM 8PM 59F/7AM
DISPERSION 5 5
MAX ADI EARLY 74 GOOD 31 FAIR 100 GOOD
MAX ADI LATE 106 VERY GOOD17 GEN POOR 101 VERY GOOD
MAX LVORI EARLY 3 3 3
MAX LVORI LATE 1 3 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ068-042030-
NOBLE-
INCLUDING THE CITY OF CALDWELL
1220 AM EDT MON MAY 4 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE NONE TSTMS TSTMS
CHANCE PRECIP (%) 0 50 60
CHANCE OF THUNDER (%) 0 40 20
TEMP (24H TREND) 73 (+12) 57 (+16) 75
RH % (24H TREND) 47 (+17) 81 (+10) 44
WIND 20FT/EARLY(MPH) S 7 G17 S 7 G18 SW 9 G22
WIND 20FT/LATE(MPH) SW 9 G20 SW 8 G20 SW 10 G22
PRECIP AMOUNT 0.00 0.06 0.06
PRECIP DURATION 2 4
PRECIP BEGIN 6 PM CONTINUING
PRECIP END CONTINUING CONTINUING
MIXING HGT(M-AGL/MSL) 1560 1800
MIXING HGT(FT-AGL/MSL)5110 5920
TRANSPORT WND (MPH) SW 24 SW 28
VENT RATE (KT-FT) 107310 142080
CATEGORY DAY 5 5
INVERSION 51F/8AM 8PM 60F/8AM
DISPERSION 5 5
MAX ADI EARLY 83 GOOD 30 FAIR 113 VERY GOOD
MAX ADI LATE 121 VERY GOOD15 GEN POOR 123 VERY GOOD
MAX LVORI EARLY 3 3 3
MAX LVORI LATE 1 4 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ069-042030-
MONROE-
INCLUDING THE CITY OF WOODSFIELD
1220 AM EDT MON MAY 4 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE NONE TSTMS TSTMS
CHANCE PRECIP (%) 0 40 50
CHANCE OF THUNDER (%) 0 40 20
TEMP (24H TREND) 72 (+11) 57 (+15) 76
RH % (24H TREND) 47 (+17) 79 (+10) 40
WIND 20FT/EARLY(MPH) S 7 G19 S 7 G20 SW 9 G23
WIND 20FT/LATE(MPH) SW 9 G21 SW 8 G21 SW 10 G23
PRECIP AMOUNT 0.00 0.06 0.03
PRECIP DURATION 2 2
PRECIP BEGIN 6 PM CONTINUING
PRECIP END CONTINUING CONTINUING
MIXING HGT(M-AGL/MSL) 1530 1990
MIXING HGT(FT-AGL/MSL)5030 6540
TRANSPORT WND (MPH) SW 23 SW 30
VENT RATE (KT-FT) 100600 170040
CATEGORY DAY 4 5
INVERSION 54F/9AM 8PM 60F/8AM
DISPERSION 4 5
MAX ADI EARLY 81 GOOD 29 FAIR 115 VERY GOOD
MAX ADI LATE 131 VERY GOOD14 GEN POOR 139 VERY GOOD
MAX LVORI EARLY 3 3 3
MAX LVORI LATE 1 4 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ007-042030-
MERCER-
INCLUDING THE CITIES OF SHARON, HERMITAGE, AND GROVE CITY
1220 AM EDT MON MAY 4 2026
TODAY TONIGHT TUE
CLOUD COVER MCLEAR PCLDY MCLDY
PRECIP TYPE NONE TSTMS TSTMS
CHANCE PRECIP (%) 0 70 80
CHANCE OF THUNDER (%) 0 40 30
TEMP (24H TREND) 70 (+12) 55 (+15) 70
RH % (24H TREND) 47 (+9) 91 (+17) 62
WIND 20FT/EARLY(MPH) SW 9 S 9 G18 SW 12 G21
WIND 20FT/LATE(MPH) SW 12 G20 S 10 G19 SW 12 G21
PRECIP AMOUNT 0.00 0.12 0.26
PRECIP DURATION 6 6
PRECIP BEGIN 8 PM CONTINUING
PRECIP END CONTINUING CONTINUING
MIXING HGT(M-AGL/MSL) 1650 1140
MIXING HGT(FT-AGL/MSL)5410 3730
TRANSPORT WND (MPH) SW 24 SW 31
VENT RATE (KT-FT) 113610 100710
CATEGORY DAY 5 4
INVERSION 53F/9AM 8PM 57F/5AM
DISPERSION 5 4
MAX ADI EARLY 65 GOOD 28 FAIR 76 GOOD
MAX ADI LATE 100 GOOD 17 GEN POOR 83 GOOD
MAX LVORI EARLY 3 4 4
MAX LVORI LATE 1 4 2
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ008-042030-
VENANGO-
INCLUDING THE CITIES OF OIL CITY AND FRANKLIN
1220 AM EDT MON MAY 4 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY PCLDY MCLDY
PRECIP TYPE NONE TSTMS TSTMS
CHANCE PRECIP (%) 0 70 80
CHANCE OF THUNDER (%) 0 40 30
TEMP (24H TREND) 70 (+13) 54 (+15) 70
RH % (24H TREND) 46 (+8) 92 (+16) 62
WIND 20FT/EARLY(MPH) SW 7 S 8 G17 SW 10 G21
WIND 20FT/LATE(MPH) SW 9 G18 S 8 G18 SW 10 G21
PRECIP AMOUNT 0.00 0.13 0.26
PRECIP DURATION 4 6
PRECIP BEGIN 8 PM CONTINUING
PRECIP END CONTINUING CONTINUING
MIXING HGT(M-AGL/MSL) 1710 1320
MIXING HGT(FT-AGL/MSL)5610 4310
TRANSPORT WND (MPH) SW 23 SW 33
VENT RATE (KT-FT) 112200 124990
CATEGORY DAY 5 5
INVERSION 51F/9AM 8PM 56F/5AM
DISPERSION 5 5
MAX ADI EARLY 69 GOOD 14 GEN POOR 88 GOOD
MAX ADI LATE 126 VERY GOOD14 GEN POOR 94 GOOD
MAX LVORI EARLY 4 4 4
MAX LVORI LATE 1 4 2
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ009-042030-
FOREST-
INCLUDING THE CITY OF TIONESTA
1220 AM EDT MON MAY 4 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY PCLDY MCLDY
PRECIP TYPE NONE TSTMS TSTMS
CHANCE PRECIP (%) 0 60 80
CHANCE OF THUNDER (%) 0 30 30
TEMP (24H TREND) 68 (+13) 53 (+15) 69
RH % (24H TREND) 43 (+6) 92 (+17) 58
WIND 20FT/EARLY(MPH) SW 6 S 6 G17 SW 8 G22
WIND 20FT/LATE(MPH) SW 9 G18 SW 7 G19 SW 9 G22
PRECIP AMOUNT 0.00 0.11 0.25
PRECIP DURATION 3 6
PRECIP BEGIN 8 PM CONTINUING
PRECIP END CONTINUING CONTINUING
MIXING HGT(M-AGL/MSL) 1700 1440
MIXING HGT(FT-AGL/MSL)5590 4730
TRANSPORT WND (MPH) SW 23 SW 31
VENT RATE (KT-FT) 111800 127710
CATEGORY DAY 5 5
INVERSION 49F/9AM 8PM 54F/6AM
DISPERSION 5 5
MAX ADI EARLY 65 GOOD 14 GEN POOR 91 GOOD
MAX ADI LATE 142 VERY GOOD14 GEN POOR 112 VERY GOOD
MAX LVORI EARLY 4 4 4
MAX LVORI LATE 1 5 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ013-042030-
LAWRENCE-
INCLUDING THE CITIES OF NEW CASTLE AND ELLWOOD CITY
1220 AM EDT MON MAY 4 2026
TODAY TONIGHT TUE
CLOUD COVER MCLEAR PCLDY MCLDY
PRECIP TYPE NONE TSTMS TSTMS
CHANCE PRECIP (%) 0 70 80
CHANCE OF THUNDER (%) 0 40 30
TEMP (24H TREND) 72 (+13) 55 (+15) 72
RH % (24H TREND) 44 (+8) 87 (+15) 54
WIND 20FT/EARLY(MPH) SW 8 S 9 G18 SW 11 G20
WIND 20FT/LATE(MPH) SW 10 S 9 G18 SW 11 G20
PRECIP AMOUNT 0.00 0.13 0.22
PRECIP DURATION 5 6
PRECIP BEGIN 7 PM CONTINUING
PRECIP END CONTINUING CONTINUING
MIXING HGT(M-AGL/MSL) 1710 1210
MIXING HGT(FT-AGL/MSL)5610 3980
TRANSPORT WND (MPH) SW 24 SW 33
VENT RATE (KT-FT) 117810 115420
CATEGORY DAY 5 5
INVERSION 53F/9AM 8PM 58F/5AM
DISPERSION 5 5
MAX ADI EARLY 81 GOOD 21 FAIR 88 GOOD
MAX ADI LATE 103 VERY GOOD17 GEN POOR 89 GOOD
MAX LVORI EARLY 3 4 4
MAX LVORI LATE 1 4 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ014-042030-
BUTLER-
INCLUDING THE CITY OF BUTLER
1220 AM EDT MON MAY 4 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY PCLDY MCLDY
PRECIP TYPE NONE TSTMS TSTMS
CHANCE PRECIP (%) 0 60 70
CHANCE OF THUNDER (%) 0 40 20
TEMP (24H TREND) 71 (+13) 54 (+15) 73
RH % (24H TREND) 47 (+9) 90 (+15) 52
WIND 20FT/EARLY(MPH) SW 8 S 8 G18 SW 11 G21
WIND 20FT/LATE(MPH) SW 10 G19 S 8 G18 SW 11 G22
PRECIP AMOUNT 0.00 0.13 0.15
PRECIP DURATION 3 5
PRECIP BEGIN 8 PM CONTINUING
PRECIP END CONTINUING CONTINUING
MIXING HGT(M-AGL/MSL) 1680 1500
MIXING HGT(FT-AGL/MSL)5510 4910
TRANSPORT WND (MPH) SW 23 SW 31
VENT RATE (KT-FT) 110200 132570
CATEGORY DAY 5 5
INVERSION 52F/9AM 8PM 57F/5AM
DISPERSION 5 5
MAX ADI EARLY 73 GOOD 18 GEN POOR 92 GOOD
MAX ADI LATE 106 VERY GOOD14 GEN POOR 96 GOOD
MAX LVORI EARLY 4 4 4
MAX LVORI LATE 1 4 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ015-042030-
CLARION-
INCLUDING THE CITY OF CLARION
1220 AM EDT MON MAY 4 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY PCLDY MCLDY
PRECIP TYPE NONE TSTMS TSTMS
CHANCE PRECIP (%) 0 60 70
CHANCE OF THUNDER (%) 0 40 30
TEMP (24H TREND) 69 (+13) 54 (+16) 72
RH % (24H TREND) 44 (+6) 90 (+16) 53
WIND 20FT/EARLY(MPH) SW 7 G17 S 7 G17 SW 10 G22
WIND 20FT/LATE(MPH) SW 9 G18 S 7 G18 SW 10 G22
PRECIP AMOUNT 0.00 0.18 0.16
PRECIP DURATION 3 5
PRECIP BEGIN 8 PM CONTINUING
PRECIP END CONTINUING CONTINUING
MIXING HGT(M-AGL/MSL) 1660 1450
MIXING HGT(FT-AGL/MSL)5460 4750
TRANSPORT WND (MPH) SW 22 SW 30
VENT RATE (KT-FT) 103740 123500
CATEGORY DAY 5 5
INVERSION 50F/9AM 8PM 56F/5AM
DISPERSION 5 5
MAX ADI EARLY 69 GOOD 14 GEN POOR 93 GOOD
MAX ADI LATE 123 VERY GOOD14 GEN POOR 99 GOOD
MAX LVORI EARLY 3 4 4
MAX LVORI LATE 1 4 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ016-042030-
JEFFERSON PA-
INCLUDING THE CITIES OF PUNXSUTAWNEY AND BROOKVILLE
1220 AM EDT MON MAY 4 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY PCLDY MCLDY
PRECIP TYPE NONE TSTMS TSTMS
CHANCE PRECIP (%) 0 60 70
CHANCE OF THUNDER (%) 0 30 30
TEMP (24H TREND) 68 (+13) 54 (+17) 72
RH % (24H TREND) 43 (+6) 85 (+13) 48
WIND 20FT/EARLY(MPH) SW 8 G18 SW 7 G18 SW 11 G23
WIND 20FT/LATE(MPH) SW 10 G19 SW 8 G19 SW 12 G23
PRECIP AMOUNT 0.00 0.11 0.09
PRECIP DURATION 3 5
PRECIP BEGIN 8 PM CONTINUING
PRECIP END CONTINUING CONTINUING
MIXING HGT(M-AGL/MSL) 1640 1500
MIXING HGT(FT-AGL/MSL)5380 4940
TRANSPORT WND (MPH) SW 23 SW 31
VENT RATE (KT-FT) 107600 133380
CATEGORY DAY 5 5
INVERSION 49F/9AM 8PM 56F/6AM
DISPERSION 5 5
MAX ADI EARLY 62 GOOD 14 GEN POOR 78 GOOD
MAX ADI LATE 95 GOOD 14 GEN POOR 94 GOOD
MAX LVORI EARLY 3 3 4
MAX LVORI LATE 1 4 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ020-042030-
BEAVER-
INCLUDING THE CITIES OF ALIQUIPPA, BEAVER FALLS, AMBRIDGE,
AND MONACA
1220 AM EDT MON MAY 4 2026
TODAY TONIGHT TUE
CLOUD COVER MCLEAR PCLDY MCLDY
PRECIP TYPE NONE TSTMS TSTMS
CHANCE PRECIP (%) 0 60 70
CHANCE OF THUNDER (%) 0 40 30
TEMP (24H TREND) 72 (+12) 58 (+16) 73
RH % (24H TREND) 43 (+10) 80 (+11) 47
WIND 20FT/EARLY(MPH) SW 8 G17 SW 8 G18 SW 11 G22
WIND 20FT/LATE(MPH) SW 10 G20 SW 8 G19 SW 11 G22
PRECIP AMOUNT 0.00 0.08 0.12
PRECIP DURATION 3 5
PRECIP BEGIN 8 PM CONTINUING
PRECIP END CONTINUING CONTINUING
MIXING HGT(M-AGL/MSL) 1730 1670
MIXING HGT(FT-AGL/MSL)5670 5470
TRANSPORT WND (MPH) SW 24 SW 29
VENT RATE (KT-FT) 119070 136750
CATEGORY DAY 5 5
INVERSION 51F/8AM 8PM 60F/5AM
DISPERSION 5 5
MAX ADI EARLY 84 GOOD 21 FAIR 111 VERY GOOD
MAX ADI LATE 104 VERY GOOD15 GEN POOR 105 VERY GOOD
MAX LVORI EARLY 3 3 3
MAX LVORI LATE 1 4 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ021-042030-
ALLEGHENY-
INCLUDING THE CITY OF PITTSBURGH METRO AREA
1220 AM EDT MON MAY 4 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE NONE TSTMS TSTMS
CHANCE PRECIP (%) 0 50 60
CHANCE OF THUNDER (%) 0 40 20
TEMP (24H TREND) 72 (+12) 57 (+16) 76
RH % (24H TREND) 43 (+10) 80 (+10) 41
WIND 20FT/EARLY(MPH) SW 9 G17 SW 9 G19 SW 13 G22
WIND 20FT/LATE(MPH) SW 12 G20 SW 9 G20 SW 14 G23
PRECIP AMOUNT 0.00 0.05 0.05
PRECIP DURATION 2 5
PRECIP BEGIN 8 PM CONTINUING
PRECIP END CONTINUING CONTINUING
MIXING HGT(M-AGL/MSL) 1710 1720
MIXING HGT(FT-AGL/MSL)5610 5650
TRANSPORT WND (MPH) SW 23 SW 28
VENT RATE (KT-FT) 112200 135600
CATEGORY DAY 5 5
INVERSION 50F/8AM 8PM 59F/6AM
DISPERSION 5 5
MAX ADI EARLY 73 GOOD 29 FAIR 101 VERY GOOD
MAX ADI LATE 98 GOOD 14 GEN POOR 101 VERY GOOD
MAX LVORI EARLY 3 3 3
MAX LVORI LATE 1 4 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ022-042030-
ARMSTRONG-
INCLUDING THE CITIES OF KITTANNING AND FORD CITY
1220 AM EDT MON MAY 4 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE NONE TSTMS TSTMS
CHANCE PRECIP (%) 0 50 60
CHANCE OF THUNDER (%) 0 40 20
TEMP (24H TREND) 70 (+12) 54 (+16) 75
RH % (24H TREND) 46 (+9) 87 (+12) 47
WIND 20FT/EARLY(MPH) SW 7 G17 S 7 G17 SW 10 G22
WIND 20FT/LATE(MPH) SW 10 G19 S 7 G18 SW 12 G23
PRECIP AMOUNT 0.00 0.08 0.07
PRECIP DURATION 2 5
PRECIP BEGIN 8 PM CONTINUING
PRECIP END CONTINUING CONTINUING
MIXING HGT(M-AGL/MSL) 1640 1620
MIXING HGT(FT-AGL/MSL)5370 5320
TRANSPORT WND (MPH) SW 22 SW 31
VENT RATE (KT-FT) 102030 143640
CATEGORY DAY 5 5
INVERSION 51F/9AM 8PM 56F/6AM
DISPERSION 5 5
MAX ADI EARLY 69 GOOD 13 GEN POOR 90 GOOD
MAX ADI LATE 103 VERY GOOD14 GEN POOR 99 GOOD
MAX LVORI EARLY 3 4 4
MAX LVORI LATE 1 4 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ029-042030-
WASHINGTON-
INCLUDING THE CITIES OF WASHINGTON AND CANONSBURG
1220 AM EDT MON MAY 4 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE NONE TSTMS TSTMS
CHANCE PRECIP (%) 0 50 50
CHANCE OF THUNDER (%) 0 40 20
TEMP (24H TREND) 71 (+12) 57 (+17) 76
RH % (24H TREND) 45 (+14) 77 (+10) 41
WIND 20FT/EARLY(MPH) SW 9 G18 SW 9 G19 SW 13 G22
WIND 20FT/LATE(MPH) SW 12 G20 SW 10 G21 SW 14 G23
PRECIP AMOUNT 0.00 0.06 0.04
PRECIP DURATION 2 2
PRECIP BEGIN 7 PM CONTINUING
PRECIP END CONTINUING CONTINUING
MIXING HGT(M-AGL/MSL) 1660 1700
MIXING HGT(FT-AGL/MSL)5440 5570
TRANSPORT WND (MPH) SW 23 SW 29
VENT RATE (KT-FT) 108800 139250
CATEGORY DAY 5 5
INVERSION 54F/9AM 8PM 59F/7AM
DISPERSION 5 5
MAX ADI EARLY 72 GOOD 29 FAIR 114 VERY GOOD
MAX ADI LATE 99 GOOD 16 GEN POOR 128 VERY GOOD
MAX LVORI EARLY 3 3 3
MAX LVORI LATE 1 3 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ031-042030-
GREENE-
INCLUDING THE CITY OF WAYNESBURG
1220 AM EDT MON MAY 4 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE NONE TSTMS TSTMS
CHANCE PRECIP (%) 0 40 40
CHANCE OF THUNDER (%) 0 30 20
TEMP (24H TREND) 71 (+12) 57 (+17) 76
RH % (24H TREND) 47 (+15) 77 (+7) 39
WIND 20FT/EARLY(MPH) SW 8 G18 SW 8 G18 SW 11 G22
WIND 20FT/LATE(MPH) SW 10 G20 SW 8 G20 SW 11 G23
PRECIP AMOUNT 0.00 0.11 0.01
PRECIP DURATION 1 2
PRECIP BEGIN 7 PM CONTINUING
PRECIP END CONTINUING CONTINUING
MIXING HGT(M-AGL/MSL) 1690 2000
MIXING HGT(FT-AGL/MSL)5530 6580
TRANSPORT WND (MPH) SW 24 SW 30
VENT RATE (KT-FT) 116130 171080
CATEGORY DAY 5 5
INVERSION 51F/8AM 8PM 59F/7AM
DISPERSION 5 5
MAX ADI EARLY 78 GOOD 20 GEN POOR 134 VERY GOOD
MAX ADI LATE 104 VERY GOOD15 GEN POOR 147 VERY GOOD
MAX LVORI EARLY 3 3 3
MAX LVORI LATE 1 3 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ073-042030-
WESTMORELAND-
INCLUDING THE CITIES OF MURRYSVILLE, GREENSBURG, NEW KENSINGTON,
LOWER BURRELL, LATROBE, AND MONESSEN
1220 AM EDT MON MAY 4 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE NONE TSTMS TSTMS
CHANCE PRECIP (%) 0 40 50
CHANCE OF THUNDER (%) 0 40 20
TEMP (24H TREND) 71 (+12) 56 (+17) 76
RH % (24H TREND) 45 (+11) 83 (+12) 41
WIND 20FT/EARLY(MPH) SW 9 G18 SW 9 G18 SW 13 G23
WIND 20FT/LATE(MPH) SW 12 G20 SW 9 G19 SW 15 G23
PRECIP AMOUNT 0.00 0.05 0.03
PRECIP DURATION 2 2
PRECIP BEGIN 7 PM CONTINUING
PRECIP END CONTINUING CONTINUING
MIXING HGT(M-AGL/MSL) 1610 1650
MIXING HGT(FT-AGL/MSL)5290 5430
TRANSPORT WND (MPH) SW 23 SW 31
VENT RATE (KT-FT) 105800 146610
CATEGORY DAY 5 5
INVERSION 53F/9AM 8PM 58F/7AM
DISPERSION 5 5
MAX ADI EARLY 70 GOOD 28 FAIR 122 VERY GOOD
MAX ADI LATE 94 GOOD 15 GEN POOR 132 VERY GOOD
MAX LVORI EARLY 3 3 4
MAX LVORI LATE 1 4 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ074-042030-
HIGHER ELEVATIONS OF WESTMORELAND-
INCLUDING THE CITIES OF LIGONIER AND DONEGAL
1220 AM EDT MON MAY 4 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE NONE TSTMS TSTMS
CHANCE PRECIP (%) 0 40 40
CHANCE OF THUNDER (%) 0 20 20
TEMP (24H TREND) 72 (+16) 55 (+16) 77
RH % (24H TREND) 41 (+8) 76 (+9) 37
WIND 20FT/EARLY(MPH) SW 8 G19 SW 7 G19 SW 11 G23
WIND 20FT/LATE(MPH) SW 10 G20 SW 8 G22 SW 12 G23
PRECIP AMOUNT 0.00 0.09 0.02
PRECIP DURATION 2 2
PRECIP BEGIN 7 PM CONTINUING
PRECIP END CONTINUING CONTINUING
MIXING HGT(M-AGL/MSL) 1630 1680
MIXING HGT(FT-AGL/MSL)5340 5520
TRANSPORT WND (MPH) SW 23 SW 26
VENT RATE (KT-FT) 106800 126960
CATEGORY DAY 5 5
INVERSION 53F/9AM 8PM 59F/5AM
DISPERSION 5 5
MAX ADI EARLY 85 GOOD 13 GEN POOR 126 VERY GOOD
MAX ADI LATE 93 GOOD 18 GEN POOR 130 VERY GOOD
MAX LVORI EARLY 3 3 3
MAX LVORI LATE 1 3 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ075-042030-
FAYETTE-
INCLUDING THE CITY OF UNIONTOWN
1220 AM EDT MON MAY 4 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE NONE TSTMS TSTMS
CHANCE PRECIP (%) 0 40 40
CHANCE OF THUNDER (%) 0 20 20
TEMP (24H TREND) 71 (+12) 56 (+16) 77
RH % (24H TREND) 46 (+14) 80 (+13) 38
WIND 20FT/EARLY(MPH) SW 8 S 7 G17 SW 11 G22
WIND 20FT/LATE(MPH) SW 11 G19 S 8 G18 SW 12 G22
PRECIP AMOUNT 0.00 0.09 0.00
PRECIP DURATION 2 2
PRECIP BEGIN 7 PM CONTINUING
PRECIP END CONTINUING CONTINUING
MIXING HGT(M-AGL/MSL) 1660 1950
MIXING HGT(FT-AGL/MSL)5440 6400
TRANSPORT WND (MPH) SW 22 SW 31
VENT RATE (KT-FT) 103360 172800
CATEGORY DAY 5 5
INVERSION 51F/8AM 8PM 58F/6AM
DISPERSION 5 5
MAX ADI EARLY 78 GOOD 14 GEN POOR 130 VERY GOOD
MAX ADI LATE 95 GOOD 15 GEN POOR 145 VERY GOOD
MAX LVORI EARLY 3 3 3
MAX LVORI LATE 1 4 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ076-042030-
HIGHER ELEVATIONS OF FAYETTE-
INCLUDING THE CITIES OF CHAMPION AND OHIOPYLE
1220 AM EDT MON MAY 4 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE NONE TSTMS TSTMS
CHANCE PRECIP (%) 0 30 30
CHANCE OF THUNDER (%) 0 20 20
TEMP (24H TREND) 69 (+14) 54 (+15) 75
RH % (24H TREND) 45 (+12) 77 (+8) 36
WIND 20FT/EARLY(MPH) SW 6 G17 SW 7 G18 SW 9 G22
WIND 20FT/LATE(MPH) SW 9 G19 SW 7 G19 SW 9 G22
PRECIP AMOUNT 0.00 0.09 0.00
PRECIP DURATION 2 2
PRECIP BEGIN 7 PM CONTINUING
PRECIP END CONTINUING CONTINUING
MIXING HGT(M-AGL/MSL) 1460 1940
MIXING HGT(FT-AGL/MSL)4800 6350
TRANSPORT WND (MPH) SW 22 SW 30
VENT RATE (KT-FT) 91200 165100
CATEGORY DAY 4 5
INVERSION 51F/9AM 7PM 57F/7AM
DISPERSION 4 5
MAX ADI EARLY 80 GOOD 13 GEN POOR 146 VERY GOOD
MAX ADI LATE 113 VERY GOOD14 GEN POOR 188 VERY GOOD
MAX LVORI EARLY 3 3 3
MAX LVORI LATE 1 3 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ077-042030-
INDIANA-
INCLUDING THE CITY OF INDIANA
1220 AM EDT MON MAY 4 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE NONE TSTMS TSTMS
CHANCE PRECIP (%) 0 50 60
CHANCE OF THUNDER (%) 0 30 20
TEMP (24H TREND) 71 (+14) 55 (+17) 75
RH % (24H TREND) 44 (+8) 83 (+11) 44
WIND 20FT/EARLY(MPH) SW 8 G18 SW 7 G18 SW 12 G23
WIND 20FT/LATE(MPH) SW 10 G19 SW 8 G19 SW 13 G23
PRECIP AMOUNT 0.00 0.06 0.05
PRECIP DURATION 2 5
PRECIP BEGIN 8 PM CONTINUING
PRECIP END CONTINUING CONTINUING
MIXING HGT(M-AGL/MSL) 1580 1560
MIXING HGT(FT-AGL/MSL)5200 5130
TRANSPORT WND (MPH) SW 22 SW 29
VENT RATE (KT-FT) 98800 128250
CATEGORY DAY 4 5
INVERSION 51F/9AM 8PM 58F/5AM
DISPERSION 4 5
MAX ADI EARLY 67 GOOD 13 GEN POOR 106 VERY GOOD
MAX ADI LATE 93 GOOD 14 GEN POOR 101 VERY GOOD
MAX LVORI EARLY 3 3 3
MAX LVORI LATE 1 4 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ078-042030-
HIGHER ELEVATIONS OF INDIANA-
INCLUDING THE CITY OF ARMAGH
1220 AM EDT MON MAY 4 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE NONE TSTMS TSTMS
CHANCE PRECIP (%) 0 40 50
CHANCE OF THUNDER (%) 0 20 20
TEMP (24H TREND) 70 (+14) 56 (+17) 75
RH % (24H TREND) 42 (+8) 78 (+10) 40
WIND 20FT/EARLY(MPH) SW 7 G19 SW 7 G18 SW 11 G23
WIND 20FT/LATE(MPH) SW 10 G20 SW 8 G21 SW 12 G23
PRECIP AMOUNT 0.00 0.07 0.04
PRECIP DURATION 2 2
PRECIP BEGIN 8 PM CONTINUING
PRECIP END CONTINUING CONTINUING
MIXING HGT(M-AGL/MSL) 1550 1530
MIXING HGT(FT-AGL/MSL)5080 5010
TRANSPORT WND (MPH) SW 22 SW 28
VENT RATE (KT-FT) 96520 120240
CATEGORY DAY 4 5
INVERSION 52F/9AM 8PM 58F/5AM
DISPERSION 4 5
MAX ADI EARLY 74 GOOD 13 GEN POOR 121 VERY GOOD
MAX ADI LATE 92 GOOD 15 GEN POOR 126 VERY GOOD
MAX LVORI EARLY 3 3 3
MAX LVORI LATE 1 4 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ001-042030-
HANCOCK-
INCLUDING THE CITY OF WEIRTON
1220 AM EDT MON MAY 4 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY PCLDY MCLDY
PRECIP TYPE NONE TSTMS TSTMS
CHANCE PRECIP (%) 0 60 70
CHANCE OF THUNDER (%) 0 40 30
TEMP (24H TREND) 71 (+12) 58 (+17) 73
RH % (24H TREND) 43 (+12) 77 (+8) 46
WIND 20FT/EARLY(MPH) S 8 G17 S 9 G18 SW 11 G22
WIND 20FT/LATE(MPH) SW 10 G20 SW 9 G19 SW 12 G22
PRECIP AMOUNT 0.00 0.08 0.11
PRECIP DURATION 3 5
PRECIP BEGIN 8 PM CONTINUING
PRECIP END CONTINUING CONTINUING
MIXING HGT(M-AGL/MSL) 1710 1660
MIXING HGT(FT-AGL/MSL)5600 5440
TRANSPORT WND (MPH) SW 24 SW 30
VENT RATE (KT-FT) 117600 141440
CATEGORY DAY 5 5
INVERSION 50F/8AM 8PM 60F/5AM
DISPERSION 5 5
MAX ADI EARLY 87 GOOD 20 GEN POOR 118 VERY GOOD
MAX ADI LATE 102 VERY GOOD15 GEN POOR 132 VERY GOOD
MAX LVORI EARLY 3 3 3
MAX LVORI LATE 1 3 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ002-042030-
BROOKE-
INCLUDING THE CITIES OF FOLLANSBEE AND WELLSBURG
1220 AM EDT MON MAY 4 2026
TODAY TONIGHT TUE
CLOUD COVER MCLEAR PCLDY PCLDY
PRECIP TYPE NONE TSTMS TSTMS
CHANCE PRECIP (%) 0 60 60
CHANCE OF THUNDER (%) 0 40 20
TEMP (24H TREND) 72 (+12) 59 (+17) 74
RH % (24H TREND) 43 (+13) 73 (+8) 42
WIND 20FT/EARLY(MPH) SW 9 G18 S 9 G19 SW 12 G22
WIND 20FT/LATE(MPH) SW 11 G20 SW 10 G21 SW 12 G23
PRECIP AMOUNT 0.00 0.05 0.06
PRECIP DURATION 2 5
PRECIP BEGIN 7 PM CONTINUING
PRECIP END CONTINUING CONTINUING
MIXING HGT(M-AGL/MSL) 1720 1620
MIXING HGT(FT-AGL/MSL)5650 5320
TRANSPORT WND (MPH) SW 23 SW 26
VENT RATE (KT-FT) 113000 122360
CATEGORY DAY 5 5
INVERSION 51F/8AM 8PM 60F/6AM
DISPERSION 5 5
MAX ADI EARLY 76 GOOD 28 FAIR 94 GOOD
MAX ADI LATE 99 GOOD 15 GEN POOR 103 VERY GOOD
MAX LVORI EARLY 3 2 3
MAX LVORI LATE 1 3 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ003-042030-
OHIO-
INCLUDING THE CITY OF WHEELING
1220 AM EDT MON MAY 4 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE NONE TSTMS TSTMS
CHANCE PRECIP (%) 0 50 50
CHANCE OF THUNDER (%) 0 40 20
TEMP (24H TREND) 71 (+11) 58 (+16) 75
RH % (24H TREND) 45 (+15) 76 (+10) 41
WIND 20FT/EARLY(MPH) SW 9 G18 S 9 G19 SW 12 G22
WIND 20FT/LATE(MPH) SW 11 G20 SW 10 G21 SW 13 G23
PRECIP AMOUNT 0.00 0.05 0.04
PRECIP DURATION 2 2
PRECIP BEGIN 7 PM CONTINUING
PRECIP END CONTINUING CONTINUING
MIXING HGT(M-AGL/MSL) 1640 1730
MIXING HGT(FT-AGL/MSL)5390 5670
TRANSPORT WND (MPH) SW 24 SW 26
VENT RATE (KT-FT) 113190 130410
CATEGORY DAY 5 5
INVERSION 51F/8AM 8PM 60F/7AM
DISPERSION 5 5
MAX ADI EARLY 71 GOOD 30 FAIR 119 VERY GOOD
MAX ADI LATE 102 VERY GOOD15 GEN POOR 124 VERY GOOD
MAX LVORI EARLY 3 3 3
MAX LVORI LATE 1 3 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ004-042030-
MARSHALL-
INCLUDING THE CITY OF MOUNDSVILLE
1220 AM EDT MON MAY 4 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE NONE TSTMS TSTMS
CHANCE PRECIP (%) 0 50 50
CHANCE OF THUNDER (%) 0 30 20
TEMP (24H TREND) 72 (+12) 58 (+16) 77
RH % (24H TREND) 47 (+15) 75 (+9) 42
WIND 20FT/EARLY(MPH) SW 8 G18 S 8 G19 SW 11 G22
WIND 20FT/LATE(MPH) SW 10 G20 S 9 G21 SW 11 G23
PRECIP AMOUNT 0.00 0.05 0.02
PRECIP DURATION 2 2
PRECIP BEGIN 7 PM CONTINUING
PRECIP END CONTINUING CONTINUING
MIXING HGT(M-AGL/MSL) 1640 1980
MIXING HGT(FT-AGL/MSL)5390 6510
TRANSPORT WND (MPH) SW 24 SW 29
VENT RATE (KT-FT) 113190 162750
CATEGORY DAY 5 5
INVERSION 51F/8AM 8PM 60F/7AM
DISPERSION 5 5
MAX ADI EARLY 79 GOOD 32 FAIR 122 VERY GOOD
MAX ADI LATE 102 VERY GOOD14 GEN POOR 139 VERY GOOD
MAX LVORI EARLY 3 3 3
MAX LVORI LATE 1 3 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ012-042030-
WETZEL-
INCLUDING THE CITY OF NEW MARTINSVILLE
1220 AM EDT MON MAY 4 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE NONE TSTMS SHOWERS
CHANCE PRECIP (%) 0 40 40
CHANCE OF THUNDER (%) 0 30 0
TEMP (24H TREND) 71 (+12) 58 (+16) 76
RH % (24H TREND) 49 (+17) 75 (+6) 41
WIND 20FT/EARLY(MPH) SW 7 G18 S 7 G18 SW 9 G22
WIND 20FT/LATE(MPH) SW 9 G20 S 8 G20 SW 10 G23
PRECIP AMOUNT 0.00 0.05 0.01
PRECIP DURATION 2 1
PRECIP BEGIN 7 PM CONTINUING
PRECIP END CONTINUING CONTINUING
MIXING HGT(M-AGL/MSL) 1560 2080
MIXING HGT(FT-AGL/MSL)5130 6830
TRANSPORT WND (MPH) SW 24 SW 30
VENT RATE (KT-FT) 107730 177580
CATEGORY DAY 5 5
INVERSION 53F/9AM 8PM 60F/8AM
DISPERSION 5 5
MAX ADI EARLY 80 GOOD 28 FAIR 119 VERY GOOD
MAX ADI LATE 133 VERY GOOD14 GEN POOR 143 VERY GOOD
MAX LVORI EARLY 3 3 3
MAX LVORI LATE 1 3 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ021-042030-
MARION-
INCLUDING THE CITY OF FAIRMONT
1220 AM EDT MON MAY 4 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE NONE TSTMS SHOWERS
CHANCE PRECIP (%) 0 30 30
CHANCE OF THUNDER (%) 0 20 0
TEMP (24H TREND) 71 (+12) 56 (+16) 76
RH % (24H TREND) 48 (+16) 78 (+5) 37
WIND 20FT/EARLY(MPH) SW 7 G17 S 7 G18 SW 10 G22
WIND 20FT/LATE(MPH) SW 9 G19 S 7 G18 SW 10 G22
PRECIP AMOUNT 0.00 0.10 0.00
PRECIP DURATION 1 1
PRECIP BEGIN 6 PM CONTINUING
PRECIP END CONTINUING CONTINUING
MIXING HGT(M-AGL/MSL) 1710 2070
MIXING HGT(FT-AGL/MSL)5600 6800
TRANSPORT WND (MPH) SW 23 SW 30
VENT RATE (KT-FT) 112000 176800
CATEGORY DAY 5 5
INVERSION 53F/9AM 8PM 59F/8AM
DISPERSION 5 5
MAX ADI EARLY 90 GOOD 28 FAIR 128 VERY GOOD
MAX ADI LATE 143 VERY GOOD13 GEN POOR 152 VERY GOOD
MAX LVORI EARLY 3 3 3
MAX LVORI LATE 1 4 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ509-042030-
MONONGALIA-
INCLUDING THE CITY OF MORGANTOWN
1220 AM EDT MON MAY 4 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE NONE TSTMS TSTMS
CHANCE PRECIP (%) 0 30 30
CHANCE OF THUNDER (%) 0 20 20
TEMP (24H TREND) 71 (+12) 56 (+15) 77
RH % (24H TREND) 47 (+15) 77 (+10) 37
WIND 20FT/EARLY(MPH) SW 7 G17 S 7 G18 SW 10 G22
WIND 20FT/LATE(MPH) SW 9 G19 S 7 G18 SW 10 G22
PRECIP AMOUNT 0.00 0.07 0.00
PRECIP DURATION 2 2
PRECIP BEGIN 6 PM CONTINUING
PRECIP END CONTINUING CONTINUING
MIXING HGT(M-AGL/MSL) 1690 2100
MIXING HGT(FT-AGL/MSL)5530 6900
TRANSPORT WND (MPH) SW 23 SW 31
VENT RATE (KT-FT) 110600 186300
CATEGORY DAY 5 5
INVERSION 54F/9AM 8PM 59F/7AM
DISPERSION 5 5
MAX ADI EARLY 83 GOOD 16 GEN POOR 130 VERY GOOD
MAX ADI LATE 136 VERY GOOD13 GEN POOR 154 VERY GOOD
MAX LVORI EARLY 3 3 3
MAX LVORI LATE 1 3 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ510-042030-
RIDGES OF EASTERN MONONGALIA AND NORTHWESTERN PRESTON-
INCLUDING THE CITY OF COOPERS ROCK
1220 AM EDT MON MAY 4 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE NONE TSTMS TSTMS
CHANCE PRECIP (%) 0 30 30
CHANCE OF THUNDER (%) 0 20 20
TEMP (24H TREND) 68 (+13) 54 (+15) 75
RH % (24H TREND) 47 (+14) 78 (+8) 37
WIND 20FT/EARLY(MPH) SW 7 G17 SW 7 G17 SW 9 G21
WIND 20FT/LATE(MPH) SW 9 G18 SW 8 G18 SW 9 G21
PRECIP AMOUNT 0.00 0.11 0.00
PRECIP DURATION 2 2
PRECIP BEGIN 6 PM CONTINUING
PRECIP END CONTINUING CONTINUING
MIXING HGT(M-AGL/MSL) 1440 2010
MIXING HGT(FT-AGL/MSL)4710 6580
TRANSPORT WND (MPH) SW 23 SW 32
VENT RATE (KT-FT) 94200 184240
CATEGORY DAY 4 5
INVERSION 51F/9AM 7PM 60F/9AM
DISPERSION 4 5
MAX ADI EARLY 77 GOOD 14 GEN POOR 124 VERY GOOD
MAX ADI LATE 117 VERY GOOD14 GEN POOR 192 VERY GOOD
MAX LVORI EARLY 3 3 3
MAX LVORI LATE 1 4 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ511-042030-
PRESTON-
INCLUDING THE CITIES OF KINGWOOD AND BRUCETON MILLS
1220 AM EDT MON MAY 4 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE NONE TSTMS TSTMS
CHANCE PRECIP (%) 0 30 20
CHANCE OF THUNDER (%) 0 20 20
TEMP (24H TREND) 69 (+13) 54 (+15) 76
RH % (24H TREND) 46 (+15) 79 (+7) 34
WIND 20FT/EARLY(MPH) SW 5 SW 6 SW 8 G20
WIND 20FT/LATE(MPH) SW 8 G17 SW 5 G17 SW 9 G21
PRECIP AMOUNT 0.00 0.13 0.00
PRECIP DURATION 1 1
PRECIP BEGIN 6 PM 6 AM
PRECIP END 5 AM CONTINUING
MIXING HGT(M-AGL/MSL) 1550 2080
MIXING HGT(FT-AGL/MSL)5090 6830
TRANSPORT WND (MPH) SW 23 SW 31
VENT RATE (KT-FT) 101800 184410
CATEGORY DAY 4 5
INVERSION 48F/8AM 8PM 56F/6AM
DISPERSION 4 5
MAX ADI EARLY 88 GOOD 12 POOR 180 VERY GOOD
MAX ADI LATE 126 VERY GOOD12 POOR 198 VERY GOOD
MAX LVORI EARLY 3 3 3
MAX LVORI LATE 1 4 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ512-042030-
EASTERN PRESTON-
INCLUDING THE CITIES OF TERRA ALTA, ROWLESBURG, AND HAZELTON
1220 AM EDT MON MAY 4 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE NONE TSTMS SHOWERS
CHANCE PRECIP (%) 0 30 20
CHANCE OF THUNDER (%) 0 20 0
TEMP (24H TREND) 68 (+15) 54 (+16) 74
RH % (24H TREND) 47 (+13) 77 (+4) 34
WIND 20FT/EARLY(MPH) SW 7 G18 SW 7 G18 SW 9 G22
WIND 20FT/LATE(MPH) SW 9 G19 SW 7 G19 SW 10 G22
PRECIP AMOUNT 0.00 0.18 0.00
PRECIP DURATION 1 0
PRECIP BEGIN 6 PM 2 PM
PRECIP END 4 AM CONTINUING
MIXING HGT(M-AGL/MSL) 1430 2070
MIXING HGT(FT-AGL/MSL)4690 6790
TRANSPORT WND (MPH) SW 22 SW 30
VENT RATE (KT-FT) 89110 176540
CATEGORY DAY 4 5
INVERSION 50F/9AM 8PM 57F/8AM
DISPERSION 4 5
MAX ADI EARLY 84 GOOD 16 GEN POOR 134 VERY GOOD
MAX ADI LATE 109 VERY GOOD13 GEN POOR 174 VERY GOOD
MAX LVORI EARLY 3 3 3
MAX LVORI LATE 1 3 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ513-042030-
WESTERN TUCKER-
INCLUDING THE CITIES OF PARSONS, HENDRICKS, AND SAINT GEORGE
1220 AM EDT MON MAY 4 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE NONE TSTMS SHOWERS
CHANCE PRECIP (%) 0 30 20
CHANCE OF THUNDER (%) 0 20 0
TEMP (24H TREND) 69 (+14) 54 (+16) 77
RH % (24H TREND) 44 (+14) 75 (+2) 31
WIND 20FT/EARLY(MPH) SW 5 G18 SW 6 G18 SW 8 G22
WIND 20FT/LATE(MPH) SW 9 G20 SW 6 G18 SW 10 G22
PRECIP AMOUNT 0.00 0.12 0.00
PRECIP DURATION 1 0
PRECIP BEGIN 6 PM 2 PM
PRECIP END 1 AM CONTINUING
MIXING HGT(M-AGL/MSL) 1580 2340
MIXING HGT(FT-AGL/MSL)5170 7680
TRANSPORT WND (MPH) W 24 SW 29
VENT RATE (KT-FT) 108570 192000
CATEGORY DAY 5 5
INVERSION 47F/8AM 8PM 55F/6AM
DISPERSION 5 5
MAX ADI EARLY 93 GOOD 28 FAIR 181 VERY GOOD
MAX ADI LATE 134 VERY GOOD8 POOR 198 VERY GOOD
MAX LVORI EARLY 3 3 3
MAX LVORI LATE 1 3 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ514-042030-
EASTERN TUCKER-
INCLUDING THE CITIES OF DAVIS, THOMAS, AND CANAAN VALLEY
1220 AM EDT MON MAY 4 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE NONE TSTMS SHOWERS
CHANCE PRECIP (%) 0 30 20
CHANCE OF THUNDER (%) 0 20 0
TEMP (24H TREND) 67 (+17) 51 (+16) 74
RH % (24H TREND) 49 (+13) 77 (+3) 34
WIND 20FT/EARLY(MPH) SW 7 G23 SW 8 G23 SW 10 G27
WIND 20FT/LATE(MPH) W 9 G24 SW 8 G24 SW 10 G26
PRECIP AMOUNT 0.00 0.11 0.00
PRECIP DURATION 1 0
PRECIP BEGIN 6 PM 2 PM
PRECIP END 2 AM CONTINUING
MIXING HGT(M-AGL/MSL) 1470 2390
MIXING HGT(FT-AGL/MSL)4820 7850
TRANSPORT WND (MPH) W 25 SW 30
VENT RATE (KT-FT) 106040 204100
CATEGORY DAY 5 5
INVERSION 49F/9AM 8PM 56F/8AM
DISPERSION 5 5
MAX ADI EARLY 76 GOOD 30 FAIR 127 VERY GOOD
MAX ADI LATE 105 VERY GOOD14 GEN POOR 184 VERY GOOD
MAX LVORI EARLY 3 3 3
MAX LVORI LATE 1 3 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
FORECAST FOR DAYS 3 THROUGH 7
WEDNESDAY
SHOWERS. LOWS IN THE LOWER 50S. HIGHS AROUND 60.
NORTH WINDS AROUND 5 MPH.
THURSDAY
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN THE
LOWER 40S. HIGHS IN THE MID 50S. NORTH WINDS AROUND 5 MPH.
FRIDAY
PARTLY CLOUDY. A CHANCE OF SHOWERS. LOWS IN THE UPPER
30S. HIGHS IN THE UPPER 50S. WEST WINDS 10 TO 15 MPH.
SATURDAY
MOSTLY CLOUDY. A CHANCE OF SHOWERS. LOWS IN THE MID
40S. HIGHS IN THE LOWER 60S. WEST WINDS 5 TO 10 MPH.
SUNDAY
PARTLY CLOUDY. LOWS IN THE LOWER 40S. HIGHS IN THE
UPPER 60S. WEST WINDS 5 TO 10 MPH.
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