711
FNUS51 KPBZ 180644
FWFPBZ
FIRE WEATHER PLANNING FORECAST
NATIONAL WEATHER SERVICE PITTSBURGH PA
244 AM EDT MON MAY 18 2026
DISCUSSION
RELATIVE HUMIDITY LEVELS SHOULD DROP INTO THE 35 TO 45 PERCENT
RANGE BOTH THIS AFTERNOON AND TUESDAY AFTERNOON, WITH HIGHER
LEVELS THE REST OF THE WEEK. SOME GUSTS INTO THE 15 TO 20 KNOT
RANGE ARE POSSIBLE THIS AFTERNOON, ESPECIALLY NEAR AND NORTHWEST
OF PITTSBURGH, WITH SLIGHTLY STRONGER GUSTS TO AROUND 20 KNOTS ON
TUESDAY. THAT SAID, FIRE CONCERNS REMAIN LOW.
OHZ039-182015-
TUSCARAWAS-
INCLUDING THE CITIES OF NEW PHILADELPHIA AND DOVER
244 AM EDT MON MAY 18 2026
TODAY TONIGHT TUE
CLOUD COVER MCLEAR PCLDY PCLDY
PRECIP TYPE NONE NONE TSTMS
CHANCE PRECIP (%) 0 0 30
CHANCE OF THUNDER (%) 0 0 20
TEMP (24H TREND) 89 (+5) 67 (+5) 88
RH % (24H TREND) 38 (-14) 77 (-7) 42
WIND 20FT/EARLY(MPH) S 6 SW 6 G18 SW 9 G21
WIND 20FT/LATE(MPH) SW 10 G19 S 5 SW 13 G23
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION 0
PRECIP BEGIN 2 PM
PRECIP END CONTINUING
MIXING HGT(M-AGL/MSL) 2220 1750
MIXING HGT(FT-AGL/MSL)7270 5730
TRANSPORT WND (MPH) SW 26 SW 24
VENT RATE (KT-FT) 167210 120330
CATEGORY DAY 5 5
INVERSION 73F/9AM 8PM 70F/8AM
DISPERSION 5 5
MAX ADI EARLY 91 GOOD 15 GEN POOR 87 GOOD
MAX ADI LATE 132 VERY GOOD8 POOR 107 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.
OHZ040-182015-
CARROLL-
INCLUDING THE CITIES OF CARROLLTON AND MALVERN
244 AM EDT MON MAY 18 2026
TODAY TONIGHT TUE
CLOUD COVER MCLEAR PCLDY PCLDY
PRECIP TYPE NONE NONE TSTMS
CHANCE PRECIP (%) 0 0 30
CHANCE OF THUNDER (%) 0 0 30
TEMP (24H TREND) 88 (+5) 67 (+5) 88
RH % (24H TREND) 38 (-17) 74 (-9) 41
WIND 20FT/EARLY(MPH) SW 7 SW 6 G17 SW 9 G21
WIND 20FT/LATE(MPH) SW 11 G19 S 6 SW 14 G23
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION 1
PRECIP BEGIN 1 PM
PRECIP END CONTINUING
MIXING HGT(M-AGL/MSL) 2180 1700
MIXING HGT(FT-AGL/MSL)7160 5570
TRANSPORT WND (MPH) SW 26 SW 23
VENT RATE (KT-FT) 164680 111400
CATEGORY DAY 5 5
INVERSION 73F/9AM 8PM 70F/8AM
DISPERSION 5 5
MAX ADI EARLY 69 GOOD 15 GEN POOR 82 GOOD
MAX ADI LATE 126 VERY GOOD8 POOR 98 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.
OHZ041-182015-
COLUMBIANA-
INCLUDING THE CITIES OF EAST LIVERPOOL, SALEM, AND COLUMBIANA
244 AM EDT MON MAY 18 2026
TODAY TONIGHT TUE
CLOUD COVER MCLEAR PCLDY PCLDY
PRECIP TYPE NONE NONE TSTMS
CHANCE PRECIP (%) 0 0 30
CHANCE OF THUNDER (%) 0 0 30
TEMP (24H TREND) 88 (+4) 67 (+6) 88
RH % (24H TREND) 40 (-12) 75 (-14) 42
WIND 20FT/EARLY(MPH) S 6 SW 6 G17 SW 9 G21
WIND 20FT/LATE(MPH) SW 10 G18 S 5 SW 13 G23
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION 1
PRECIP BEGIN 1 PM
PRECIP END CONTINUING
MIXING HGT(M-AGL/MSL) 2160 1660
MIXING HGT(FT-AGL/MSL)7080 5460
TRANSPORT WND (MPH) SW 25 SW 23
VENT RATE (KT-FT) 155760 109200
CATEGORY DAY 5 5
INVERSION 73F/9AM 8PM 71F/8AM
DISPERSION 5 5
MAX ADI EARLY 71 GOOD 14 GEN POOR 66 GOOD
MAX ADI LATE 124 VERY GOOD8 POOR 95 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.
OHZ048-182015-
COSHOCTON-
INCLUDING THE CITY OF COSHOCTON
244 AM EDT MON MAY 18 2026
TODAY TONIGHT TUE
CLOUD COVER MCLEAR PCLDY PCLDY
PRECIP TYPE NONE NONE TSTMS
CHANCE PRECIP (%) 0 0 40
CHANCE OF THUNDER (%) 0 0 30
TEMP (24H TREND) 89 (+5) 67 (+5) 88
RH % (24H TREND) 37 (-12) 78 (-3) 43
WIND 20FT/EARLY(MPH) S 5 SW 5 G17 SW 7 G20
WIND 20FT/LATE(MPH) SW 9 G18 LGT/VAR SW 12 G21
PRECIP AMOUNT 0.00 0.00 0.01
PRECIP DURATION 1
PRECIP BEGIN 1 PM
PRECIP END CONTINUING
MIXING HGT(M-AGL/MSL) 2200 1660
MIXING HGT(FT-AGL/MSL)7220 5450
TRANSPORT WND (MPH) SW 29 SW 25
VENT RATE (KT-FT) 180500 119900
CATEGORY DAY 5 5
INVERSION 72F/9AM 8PM 70F/8AM
DISPERSION 5 5
MAX ADI EARLY 98 GOOD 16 GEN POOR 89 GOOD
MAX ADI LATE 166 VERY GOOD8 POOR 98 GOOD
MAX LVORI EARLY 4 3 3
MAX LVORI LATE 1 3 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ049-182015-
HARRISON-
INCLUDING THE CITY OF CADIZ
244 AM EDT MON MAY 18 2026
TODAY TONIGHT TUE
CLOUD COVER MCLEAR PCLDY MCLEAR
PRECIP TYPE NONE NONE TSTMS
CHANCE PRECIP (%) 0 0 20
CHANCE OF THUNDER (%) 0 0 20
TEMP (24H TREND) 89 (+5) 67 (+7) 88
RH % (24H TREND) 38 (-15) 77 (-19) 40
WIND 20FT/EARLY(MPH) S 6 SW 6 G18 SW 9 G21
WIND 20FT/LATE(MPH) SW 10 G19 S 5 SW 12 G23
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION 0
PRECIP BEGIN 2 PM
PRECIP END CONTINUING
MIXING HGT(M-AGL/MSL) 2190 1820
MIXING HGT(FT-AGL/MSL)7180 5960
TRANSPORT WND (MPH) SW 25 SW 24
VENT RATE (KT-FT) 157960 125160
CATEGORY DAY 5 5
INVERSION 73F/9AM 8PM 70F/8AM
DISPERSION 5 5
MAX ADI EARLY 78 GOOD 15 GEN POOR 84 GOOD
MAX ADI LATE 126 VERY GOOD8 POOR 107 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.
OHZ050-182015-
JEFFERSON OH-
INCLUDING THE CITY OF STEUBENVILLE
244 AM EDT MON MAY 18 2026
TODAY TONIGHT TUE
CLOUD COVER MCLEAR PCLDY MCLEAR
PRECIP TYPE NONE NONE TSTMS
CHANCE PRECIP (%) 0 0 20
CHANCE OF THUNDER (%) 0 0 20
TEMP (24H TREND) 89 (+6) 67 (+6) 88
RH % (24H TREND) 38 (-12) 76 (-18) 39
WIND 20FT/EARLY(MPH) S 6 SW 6 G17 SW 9 G20
WIND 20FT/LATE(MPH) SW 10 G19 S 5 SW 12 G22
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION 0
PRECIP BEGIN 2 PM
PRECIP END CONTINUING
MIXING HGT(M-AGL/MSL) 2150 1860
MIXING HGT(FT-AGL/MSL)7070 6090
TRANSPORT WND (MPH) SW 25 SW 25
VENT RATE (KT-FT) 155540 133980
CATEGORY DAY 5 5
INVERSION 73F/9AM 8PM 74F/9AM
DISPERSION 5 5
MAX ADI EARLY 82 GOOD 15 GEN POOR 78 GOOD
MAX ADI LATE 123 VERY GOOD8 POOR 111 VERY GOOD
MAX LVORI EARLY 4 3 3
MAX LVORI LATE 1 3 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ057-182015-
MUSKINGUM-
INCLUDING THE CITY OF ZANESVILLE
244 AM EDT MON MAY 18 2026
TODAY TONIGHT TUE
CLOUD COVER MCLEAR PCLDY PCLDY
PRECIP TYPE NONE NONE TSTMS
CHANCE PRECIP (%) 0 0 30
CHANCE OF THUNDER (%) 0 0 20
TEMP (24H TREND) 90 (+5) 67 (+5) 89
RH % (24H TREND) 36 (-12) 79 (-3) 41
WIND 20FT/EARLY(MPH) S 5 SW 5 G18 SW 7 G20
WIND 20FT/LATE(MPH) SW 9 G19 LGT/VAR SW 11 G21
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION 0
PRECIP BEGIN 2 PM
PRECIP END CONTINUING
MIXING HGT(M-AGL/MSL) 2180 1790
MIXING HGT(FT-AGL/MSL)7160 5880
TRANSPORT WND (MPH) SW 25 SW 25
VENT RATE (KT-FT) 157520 129360
CATEGORY DAY 5 5
INVERSION 73F/9AM 8PM 71F/8AM
DISPERSION 5 5
MAX ADI EARLY 99 GOOD 15 GEN POOR 89 GOOD
MAX ADI LATE 154 VERY GOOD8 POOR 109 VERY GOOD
MAX LVORI EARLY 4 3 3
MAX LVORI LATE 1 3 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ058-182015-
GUERNSEY-
INCLUDING THE CITY OF CAMBRIDGE
244 AM EDT MON MAY 18 2026
TODAY TONIGHT TUE
CLOUD COVER MCLEAR PCLDY MCLEAR
PRECIP TYPE NONE NONE TSTMS
CHANCE PRECIP (%) 0 0 20
CHANCE OF THUNDER (%) 0 0 20
TEMP (24H TREND) 90 (+5) 66 (+5) 89
RH % (24H TREND) 36 (-14) 80 (-6) 41
WIND 20FT/EARLY(MPH) S 5 SW 5 G17 SW 7 G20
WIND 20FT/LATE(MPH) SW 9 G18 LGT/VAR SW 11 G21
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION 0
PRECIP BEGIN 2 PM
PRECIP END CONTINUING
MIXING HGT(M-AGL/MSL) 2240 1920
MIXING HGT(FT-AGL/MSL)7360 6290
TRANSPORT WND (MPH) SW 25 SW 24
VENT RATE (KT-FT) 161920 132090
CATEGORY DAY 5 5
INVERSION 73F/9AM 8PM 70F/8AM
DISPERSION 5 5
MAX ADI EARLY 89 GOOD 15 GEN POOR 83 GOOD
MAX ADI LATE 184 VERY GOOD7 POOR 110 VERY GOOD
MAX LVORI EARLY 4 3 3
MAX LVORI LATE 1 3 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ059-182015-
BELMONT-
INCLUDING THE CITIES OF MARTINS FERRY AND ST. CLAIRSVILLE
244 AM EDT MON MAY 18 2026
TODAY TONIGHT TUE
CLOUD COVER MCLEAR PCLDY MCLEAR
PRECIP TYPE NONE NONE NONE
CHANCE PRECIP (%) 0 0 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 89 (+4) 66 (+5) 88
RH % (24H TREND) 39 (-13) 81 (-11) 40
WIND 20FT/EARLY(MPH) SW 6 SW 6 G17 SW 9 G21
WIND 20FT/LATE(MPH) SW 9 G19 S 5 SW 11 G22
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION
PRECIP BEGIN
PRECIP END
MIXING HGT(M-AGL/MSL) 2130 1960
MIXING HGT(FT-AGL/MSL)6980 6420
TRANSPORT WND (MPH) SW 24 SW 24
VENT RATE (KT-FT) 146580 134820
CATEGORY DAY 5 5
INVERSION 73F/9AM 8PM 73F/9AM
DISPERSION 5 5
MAX ADI EARLY 74 GOOD 14 GEN POOR 78 GOOD
MAX ADI LATE 128 VERY GOOD9 POOR 109 VERY GOOD
MAX LVORI EARLY 4 3 4
MAX LVORI LATE 1 3 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ068-182015-
NOBLE-
INCLUDING THE CITY OF CALDWELL
244 AM EDT MON MAY 18 2026
TODAY TONIGHT TUE
CLOUD COVER CLEAR PCLDY PCLDY
PRECIP TYPE NONE NONE NONE
CHANCE PRECIP (%) 0 0 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 90 (+4) 66 (+6) 89
RH % (24H TREND) 37 (-14) 83 (-10) 40
WIND 20FT/EARLY(MPH) S 5 LGT/VAR SW 7 G19
WIND 20FT/LATE(MPH) SW 9 G18 LGT/VAR SW 10 G20
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION
PRECIP BEGIN
PRECIP END
MIXING HGT(M-AGL/MSL) 2260 2040
MIXING HGT(FT-AGL/MSL)7430 6700
TRANSPORT WND (MPH) SW 24 SW 25
VENT RATE (KT-FT) 156030 147400
CATEGORY DAY 5 5
INVERSION 71F/9AM 8PM 73F/9AM
DISPERSION 5 5
MAX ADI EARLY 67 GOOD 15 GEN POOR 86 GOOD
MAX ADI LATE 186 VERY GOOD8 POOR 107 VERY GOOD
MAX LVORI EARLY 4 3 4
MAX LVORI LATE 1 4 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ069-182015-
MONROE-
INCLUDING THE CITY OF WOODSFIELD
244 AM EDT MON MAY 18 2026
TODAY TONIGHT TUE
CLOUD COVER CLEAR PCLDY PCLDY
PRECIP TYPE NONE NONE NONE
CHANCE PRECIP (%) 0 0 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 90 (+4) 66 (+5) 89
RH % (24H TREND) 37 (-14) 82 (-9) 40
WIND 20FT/EARLY(MPH) LGT/VAR SW 5 G17 SW 6 G20
WIND 20FT/LATE(MPH) SW 8 G18 LGT/VAR SW 10 G21
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION
PRECIP BEGIN
PRECIP END
MIXING HGT(M-AGL/MSL) 2240 2160
MIXING HGT(FT-AGL/MSL)7340 7090
TRANSPORT WND (MPH) SW 23 SW 22
VENT RATE (KT-FT) 146800 134710
CATEGORY DAY 5 5
INVERSION 72F/9AM 8PM 72F/9AM
DISPERSION 5 5
MAX ADI EARLY 66 GOOD 15 GEN POOR 94 GOOD
MAX ADI LATE 174 VERY GOOD6 VERY POOR 127 VERY GOOD
MAX LVORI EARLY 4 3 4
MAX LVORI LATE 1 3 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ007-182015-
MERCER-
INCLUDING THE CITIES OF SHARON, HERMITAGE, AND GROVE CITY
244 AM EDT MON MAY 18 2026
TODAY TONIGHT TUE
CLOUD COVER MCLEAR PCLDY PCLDY
PRECIP TYPE NONE NONE TSTMS
CHANCE PRECIP (%) 0 0 30
CHANCE OF THUNDER (%) 0 0 30
TEMP (24H TREND) 88 (+4) 66 (+4) 87
RH % (24H TREND) 43 (-10) 79 (-5) 45
WIND 20FT/EARLY(MPH) S 6 SW 6 G17 SW 8 G19
WIND 20FT/LATE(MPH) SW 10 G19 S 5 SW 13 G23
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION 1
PRECIP BEGIN 12 PM
PRECIP END CONTINUING
MIXING HGT(M-AGL/MSL) 1860 1360
MIXING HGT(FT-AGL/MSL)6090 4470
TRANSPORT WND (MPH) SW 23 SW 23
VENT RATE (KT-FT) 121800 89400
CATEGORY DAY 5 4
INVERSION 78F/10AM 8PM 75F/9AM
DISPERSION 5 4
MAX ADI EARLY 53 GEN GOOD 12 POOR 54 GEN GOOD
MAX ADI LATE 103 VERY GOOD8 POOR 88 GOOD
MAX LVORI EARLY 4 3 3
MAX LVORI LATE 1 3 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ008-182015-
VENANGO-
INCLUDING THE CITIES OF OIL CITY AND FRANKLIN
244 AM EDT MON MAY 18 2026
TODAY TONIGHT TUE
CLOUD COVER MCLEAR PCLDY PCLDY
PRECIP TYPE NONE NONE TSTMS
CHANCE PRECIP (%) 0 0 30
CHANCE OF THUNDER (%) 0 0 20
TEMP (24H TREND) 88 (+5) 65 (+5) 87
RH % (24H TREND) 43 (-6) 79 (-6) 45
WIND 20FT/EARLY(MPH) S 5 SW 5 SW 7 G18
WIND 20FT/LATE(MPH) SW 9 G18 LGT/VAR SW 10 G22
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION 1
PRECIP BEGIN 12 PM
PRECIP END CONTINUING
MIXING HGT(M-AGL/MSL) 1980 1610
MIXING HGT(FT-AGL/MSL)6500 5290
TRANSPORT WND (MPH) SW 23 SW 24
VENT RATE (KT-FT) 130000 111090
CATEGORY DAY 5 5
INVERSION 72F/9AM 8PM 73F/9AM
DISPERSION 5 5
MAX ADI EARLY 64 GOOD 13 GEN POOR 64 GOOD
MAX ADI LATE 163 VERY GOOD8 POOR 90 GOOD
MAX LVORI EARLY 4 3 3
MAX LVORI LATE 1 4 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ009-182015-
FOREST-
INCLUDING THE CITY OF TIONESTA
244 AM EDT MON MAY 18 2026
TODAY TONIGHT TUE
CLOUD COVER MCLEAR PCLDY PCLDY
PRECIP TYPE NONE NONE TSTMS
CHANCE PRECIP (%) 0 0 20
CHANCE OF THUNDER (%) 0 0 20
TEMP (24H TREND) 88 (+6) 65 (+5) 86
RH % (24H TREND) 40 (-8) 78 (-9) 43
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR SW 5 G18
WIND 20FT/LATE(MPH) SW 7 G18 LGT/VAR SW 9 G21
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION 1
PRECIP BEGIN 1 PM
PRECIP END CONTINUING
MIXING HGT(M-AGL/MSL) 1960 1670
MIXING HGT(FT-AGL/MSL)6420 5470
TRANSPORT WND (MPH) SW 22 SW 24
VENT RATE (KT-FT) 121980 114870
CATEGORY DAY 5 5
INVERSION 77F/10AM 8PM 69F/8AM
DISPERSION 5 5
MAX ADI EARLY 66 GOOD 13 GEN POOR 92 GOOD
MAX ADI LATE 157 VERY GOOD6 VERY POOR 145 VERY GOOD
MAX LVORI EARLY 4 3 3
MAX LVORI LATE 1 4 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ013-182015-
LAWRENCE-
INCLUDING THE CITIES OF NEW CASTLE AND ELLWOOD CITY
244 AM EDT MON MAY 18 2026
TODAY TONIGHT TUE
CLOUD COVER MCLEAR PCLDY PCLDY
PRECIP TYPE NONE NONE TSTMS
CHANCE PRECIP (%) 0 0 30
CHANCE OF THUNDER (%) 0 0 30
TEMP (24H TREND) 89 (+4) 66 (+5) 89
RH % (24H TREND) 42 (-9) 78 (-7) 43
WIND 20FT/EARLY(MPH) S 5 SW 5 SW 7 G18
WIND 20FT/LATE(MPH) SW 9 G17 LGT/VAR SW 12 G21
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION 1
PRECIP BEGIN 12 PM
PRECIP END CONTINUING
MIXING HGT(M-AGL/MSL) 2040 1460
MIXING HGT(FT-AGL/MSL)6700 4780
TRANSPORT WND (MPH) SW 24 SW 22
VENT RATE (KT-FT) 140700 90820
CATEGORY DAY 5 4
INVERSION 78F/10AM 8PM 75F/9AM
DISPERSION 5 4
MAX ADI EARLY 54 GEN GOOD 12 POOR 58 GEN GOOD
MAX ADI LATE 134 VERY GOOD8 POOR 80 GOOD
MAX LVORI EARLY 4 3 3
MAX LVORI LATE 1 3 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ014-182015-
BUTLER-
INCLUDING THE CITY OF BUTLER
244 AM EDT MON MAY 18 2026
TODAY TONIGHT TUE
CLOUD COVER MCLEAR PCLDY PCLDY
PRECIP TYPE NONE NONE TSTMS
CHANCE PRECIP (%) 0 0 20
CHANCE OF THUNDER (%) 0 0 20
TEMP (24H TREND) 89 (+5) 66 (+6) 87
RH % (24H TREND) 44 (-10) 82 (-6) 46
WIND 20FT/EARLY(MPH) LGT/VAR SW 5 SW 7 G17
WIND 20FT/LATE(MPH) SW 9 LGT/VAR SW 11 G20
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION 1
PRECIP BEGIN 1 PM
PRECIP END CONTINUING
MIXING HGT(M-AGL/MSL) 2080 1730
MIXING HGT(FT-AGL/MSL)6820 5680
TRANSPORT WND (MPH) SW 23 SW 23
VENT RATE (KT-FT) 136400 113600
CATEGORY DAY 5 5
INVERSION 78F/10AM 8PM 74F/9AM
DISPERSION 5 5
MAX ADI EARLY 60 GEN GOOD 12 POOR 60 GEN GOOD
MAX ADI LATE 147 VERY GOOD8 POOR 99 GOOD
MAX LVORI EARLY 4 3 4
MAX LVORI LATE 1 4 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ015-182015-
CLARION-
INCLUDING THE CITY OF CLARION
244 AM EDT MON MAY 18 2026
TODAY TONIGHT TUE
CLOUD COVER MCLEAR PCLDY PCLDY
PRECIP TYPE NONE NONE TSTMS
CHANCE PRECIP (%) 0 0 20
CHANCE OF THUNDER (%) 0 0 20
TEMP (24H TREND) 88 (+5) 65 (+5) 87
RH % (24H TREND) 41 (-7) 81 (-6) 44
WIND 20FT/EARLY(MPH) LGT/VAR SW 5 SW 6 G18
WIND 20FT/LATE(MPH) SW 8 G17 LGT/VAR SW 10 G21
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION 1
PRECIP BEGIN 1 PM
PRECIP END CONTINUING
MIXING HGT(M-AGL/MSL) 2050 1630
MIXING HGT(FT-AGL/MSL)6730 5350
TRANSPORT WND (MPH) SW 22 SW 22
VENT RATE (KT-FT) 127870 101650
CATEGORY DAY 5 5
INVERSION 77F/10AM 8PM 73F/9AM
DISPERSION 5 5
MAX ADI EARLY 57 GEN GOOD 12 POOR 64 GOOD
MAX ADI LATE 155 VERY GOOD8 POOR 94 GOOD
MAX LVORI EARLY 4 3 4
MAX LVORI LATE 1 4 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ016-182015-
JEFFERSON PA-
INCLUDING THE CITIES OF PUNXSUTAWNEY AND BROOKVILLE
244 AM EDT MON MAY 18 2026
TODAY TONIGHT TUE
CLOUD COVER MCLEAR PCLDY PCLDY
PRECIP TYPE NONE NONE TSTMS
CHANCE PRECIP (%) 0 0 20
CHANCE OF THUNDER (%) 0 0 20
TEMP (24H TREND) 88 (+7) 65 (+4) 86
RH % (24H TREND) 41 (-7) 80 (-5) 41
WIND 20FT/EARLY(MPH) LGT/VAR SW 5 SW 7 G19
WIND 20FT/LATE(MPH) SW 9 G17 LGT/VAR SW 11 G22
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION 0
PRECIP BEGIN 2 PM
PRECIP END CONTINUING
MIXING HGT(M-AGL/MSL) 1970 1960
MIXING HGT(FT-AGL/MSL)6460 6440
TRANSPORT WND (MPH) SW 22 SW 23
VENT RATE (KT-FT) 122740 128800
CATEGORY DAY 5 5
INVERSION 77F/10AM 8PM 73F/9AM
DISPERSION 5 5
MAX ADI EARLY 56 GEN GOOD 13 GEN POOR 71 GOOD
MAX ADI LATE 155 VERY GOOD8 POOR 107 VERY GOOD
MAX LVORI EARLY 4 3 3
MAX LVORI LATE 1 3 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ020-182015-
BEAVER-
INCLUDING THE CITIES OF ALIQUIPPA, BEAVER FALLS, AMBRIDGE,
AND MONACA
244 AM EDT MON MAY 18 2026
TODAY TONIGHT TUE
CLOUD COVER MCLEAR PCLDY PCLDY
PRECIP TYPE NONE NONE TSTMS
CHANCE PRECIP (%) 0 0 20
CHANCE OF THUNDER (%) 0 0 20
TEMP (24H TREND) 89 (+4) 67 (+5) 88
RH % (24H TREND) 39 (-12) 77 (-10) 41
WIND 20FT/EARLY(MPH) LGT/VAR SW 5 SW 7 G18
WIND 20FT/LATE(MPH) SW 9 G17 LGT/VAR SW 11 G21
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION 0
PRECIP BEGIN 2 PM
PRECIP END CONTINUING
MIXING HGT(M-AGL/MSL) 2180 1780
MIXING HGT(FT-AGL/MSL)7160 5830
TRANSPORT WND (MPH) SW 24 SW 24
VENT RATE (KT-FT) 150360 122430
CATEGORY DAY 5 5
INVERSION 74F/9AM 8PM 75F/9AM
DISPERSION 5 5
MAX ADI EARLY 77 GOOD 13 GEN POOR 67 GOOD
MAX ADI LATE 161 VERY GOOD7 POOR 103 VERY GOOD
MAX LVORI EARLY 4 3 3
MAX LVORI LATE 1 3 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ021-182015-
ALLEGHENY-
INCLUDING THE CITY OF PITTSBURGH METRO AREA
244 AM EDT MON MAY 18 2026
TODAY TONIGHT TUE
CLOUD COVER MCLEAR PCLDY PCLDY
PRECIP TYPE NONE NONE NONE
CHANCE PRECIP (%) 0 0 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 90 (+5) 67 (+5) 89
RH % (24H TREND) 40 (-10) 81 (-6) 40
WIND 20FT/EARLY(MPH) S 5 SW 6 SW 8 G18
WIND 20FT/LATE(MPH) SW 10 S 5 SW 13 G22
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION
PRECIP BEGIN
PRECIP END
MIXING HGT(M-AGL/MSL) 2240 2170
MIXING HGT(FT-AGL/MSL)7340 7130
TRANSPORT WND (MPH) SW 23 SW 24
VENT RATE (KT-FT) 146800 149730
CATEGORY DAY 5 5
INVERSION 73F/9AM 8PM 74F/9AM
DISPERSION 5 5
MAX ADI EARLY 88 GOOD 13 GEN POOR 73 GOOD
MAX ADI LATE 119 VERY GOOD7 POOR 108 VERY GOOD
MAX LVORI EARLY 4 3 3
MAX LVORI LATE 1 3 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ022-182015-
ARMSTRONG-
INCLUDING THE CITIES OF KITTANNING AND FORD CITY
244 AM EDT MON MAY 18 2026
TODAY TONIGHT TUE
CLOUD COVER MCLEAR PCLDY PCLDY
PRECIP TYPE NONE NONE NONE
CHANCE PRECIP (%) 0 0 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 89 (+5) 65 (+5) 88
RH % (24H TREND) 44 (-7) 84 (-8) 44
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR SW 7 G18
WIND 20FT/LATE(MPH) SW 8 LGT/VAR SW 11 G20
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION
PRECIP BEGIN
PRECIP END
MIXING HGT(M-AGL/MSL) 2020 2080
MIXING HGT(FT-AGL/MSL)6640 6810
TRANSPORT WND (MPH) SW 21 SW 22
VENT RATE (KT-FT) 119520 129390
CATEGORY DAY 5 5
INVERSION 77F/10AM 8PM 74F/9AM
DISPERSION 5 5
MAX ADI EARLY 54 GEN GOOD 12 POOR 66 GOOD
MAX ADI LATE 149 VERY GOOD6 VERY POOR 101 VERY GOOD
MAX LVORI EARLY 4 3 4
MAX LVORI LATE 1 4 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ029-182015-
WASHINGTON-
INCLUDING THE CITIES OF WASHINGTON AND CANONSBURG
244 AM EDT MON MAY 18 2026
TODAY TONIGHT TUE
CLOUD COVER MCLEAR PCLDY PCLDY
PRECIP TYPE NONE NONE NONE
CHANCE PRECIP (%) 0 0 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 89 (+6) 66 (+5) 88
RH % (24H TREND) 40 (-12) 81 (-6) 42
WIND 20FT/EARLY(MPH) SW 6 SW 6 SW 8 G19
WIND 20FT/LATE(MPH) SW 10 G17 S 5 SW 12 G21
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION
PRECIP BEGIN
PRECIP END
MIXING HGT(M-AGL/MSL) 2130 2140
MIXING HGT(FT-AGL/MSL)6970 7010
TRANSPORT WND (MPH) SW 22 SW 23
VENT RATE (KT-FT) 132430 140200
CATEGORY DAY 5 5
INVERSION 73F/9AM 8PM 74F/9AM
DISPERSION 5 5
MAX ADI EARLY 89 GOOD 13 GEN POOR 76 GOOD
MAX ADI LATE 114 VERY GOOD8 POOR 105 VERY GOOD
MAX LVORI EARLY 4 3 3
MAX LVORI LATE 1 3 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ031-182015-
GREENE-
INCLUDING THE CITY OF WAYNESBURG
244 AM EDT MON MAY 18 2026
TODAY TONIGHT TUE
CLOUD COVER MCLEAR PCLDY PCLDY
PRECIP TYPE NONE NONE NONE
CHANCE PRECIP (%) 0 0 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 89 (+6) 66 (+5) 88
RH % (24H TREND) 42 (-14) 80 (-6) 41
WIND 20FT/EARLY(MPH) SW 5 LGT/VAR SW 7 G18
WIND 20FT/LATE(MPH) SW 8 LGT/VAR SW 10 G20
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION
PRECIP BEGIN
PRECIP END
MIXING HGT(M-AGL/MSL) 2160 2400
MIXING HGT(FT-AGL/MSL)7090 7870
TRANSPORT WND (MPH) SW 21 SW 23
VENT RATE (KT-FT) 127620 157400
CATEGORY DAY 5 5
INVERSION 73F/9AM 8PM 74F/9AM
DISPERSION 5 5
MAX ADI EARLY 85 GOOD 12 POOR 89 GOOD
MAX ADI LATE 154 VERY GOOD8 POOR 113 VERY GOOD
MAX LVORI EARLY 4 3 3
MAX LVORI LATE 1 3 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ073-182015-
WESTMORELAND-
INCLUDING THE CITIES OF MURRYSVILLE, GREENSBURG, NEW KENSINGTON,
LOWER BURRELL, LATROBE, AND MONESSEN
244 AM EDT MON MAY 18 2026
TODAY TONIGHT TUE
CLOUD COVER MCLEAR PCLDY PCLDY
PRECIP TYPE NONE NONE NONE
CHANCE PRECIP (%) 0 0 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 89 (+5) 66 (+5) 88
RH % (24H TREND) 44 (-9) 83 (-6) 42
WIND 20FT/EARLY(MPH) SW 5 S 5 SW 9 G19
WIND 20FT/LATE(MPH) SW 9 LGT/VAR SW 13 G21
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION
PRECIP BEGIN
PRECIP END
MIXING HGT(M-AGL/MSL) 1980 2050
MIXING HGT(FT-AGL/MSL)6510 6720
TRANSPORT WND (MPH) SW 20 SW 22
VENT RATE (KT-FT) 110670 127680
CATEGORY DAY 5 5
INVERSION 73F/9AM 8PM 74F/9AM
DISPERSION 5 5
MAX ADI EARLY 47 GEN GOOD 11 POOR 64 GOOD
MAX ADI LATE 112 VERY GOOD7 POOR 101 VERY GOOD
MAX LVORI EARLY 4 3 4
MAX LVORI LATE 1 4 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ074-182015-
HIGHER ELEVATIONS OF WESTMORELAND-
INCLUDING THE CITIES OF LIGONIER AND DONEGAL
244 AM EDT MON MAY 18 2026
TODAY TONIGHT TUE
CLOUD COVER MCLEAR MCLEAR PCLDY
PRECIP TYPE NONE NONE NONE
CHANCE PRECIP (%) 0 0 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 88 (+6) 66 (+4) 87
RH % (24H TREND) 40 (-9) 77 (-5) 40
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR SW 7 G20
WIND 20FT/LATE(MPH) SW 7 LGT/VAR SW 10 G21
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION
PRECIP BEGIN
PRECIP END
MIXING HGT(M-AGL/MSL) 1830 2060
MIXING HGT(FT-AGL/MSL)6000 6750
TRANSPORT WND (MPH) SW 18 SW 22
VENT RATE (KT-FT) 96000 128250
CATEGORY DAY 4 5
INVERSION 74F/9AM 8PM 74F/9AM
DISPERSION 4 5
MAX ADI EARLY 66 GOOD 7 POOR 79 GOOD
MAX ADI LATE 121 VERY GOOD8 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.
PAZ075-182015-
FAYETTE-
INCLUDING THE CITY OF UNIONTOWN
244 AM EDT MON MAY 18 2026
TODAY TONIGHT TUE
CLOUD COVER MCLEAR PCLDY PCLDY
PRECIP TYPE NONE NONE NONE
CHANCE PRECIP (%) 0 0 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 89 (+6) 66 (+5) 88
RH % (24H TREND) 43 (-11) 81 (-3) 41
WIND 20FT/EARLY(MPH) SW 5 LGT/VAR SW 7 G17
WIND 20FT/LATE(MPH) SW 8 LGT/VAR SW 10 G19
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION
PRECIP BEGIN
PRECIP END
MIXING HGT(M-AGL/MSL) 1960 2310
MIXING HGT(FT-AGL/MSL)6440 7570
TRANSPORT WND (MPH) SW 18 SW 21
VENT RATE (KT-FT) 103040 136260
CATEGORY DAY 4 5
INVERSION 74F/9AM 8PM 74F/9AM
DISPERSION 4 5
MAX ADI EARLY 61 GOOD 9 POOR 79 GOOD
MAX ADI LATE 125 VERY GOOD7 POOR 103 VERY GOOD
MAX LVORI EARLY 4 3 3
MAX LVORI LATE 1 4 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ076-182015-
HIGHER ELEVATIONS OF FAYETTE-
INCLUDING THE CITIES OF CHAMPION AND OHIOPYLE
244 AM EDT MON MAY 18 2026
TODAY TONIGHT TUE
CLOUD COVER MCLEAR MCLEAR PCLDY
PRECIP TYPE NONE NONE NONE
CHANCE PRECIP (%) 0 0 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 87 (+6) 65 (+4) 87
RH % (24H TREND) 42 (-8) 75 (-6) 40
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR SW 5 G17
WIND 20FT/LATE(MPH) SW 5 LGT/VAR SW 8 G18
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION
PRECIP BEGIN
PRECIP END
MIXING HGT(M-AGL/MSL) 1770 2470
MIXING HGT(FT-AGL/MSL)5800 8120
TRANSPORT WND (MPH) SW 18 SW 21
VENT RATE (KT-FT) 92800 146160
CATEGORY DAY 4 5
INVERSION 74F/9AM 8PM 74F/9AM
DISPERSION 4 5
MAX ADI EARLY 63 GOOD 7 POOR 100 GOOD
MAX ADI LATE 117 VERY GOOD5 VERY POOR 169 VERY GOOD
MAX LVORI EARLY 4 3 3
MAX LVORI LATE 1 3 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ077-182015-
INDIANA-
INCLUDING THE CITY OF INDIANA
244 AM EDT MON MAY 18 2026
TODAY TONIGHT TUE
CLOUD COVER CLEAR PCLDY PCLDY
PRECIP TYPE NONE NONE NONE
CHANCE PRECIP (%) 0 0 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 89 (+6) 65 (+5) 88
RH % (24H TREND) 42 (-8) 82 (-7) 43
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR SW 7 G19
WIND 20FT/LATE(MPH) SW 8 LGT/VAR SW 11 G22
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION
PRECIP BEGIN
PRECIP END
MIXING HGT(M-AGL/MSL) 1890 2180
MIXING HGT(FT-AGL/MSL)6200 7170
TRANSPORT WND (MPH) SW 21 SW 22
VENT RATE (KT-FT) 111600 136230
CATEGORY DAY 5 5
INVERSION 73F/9AM 8PM 73F/9AM
DISPERSION 5 5
MAX ADI EARLY 54 GEN GOOD 11 POOR 67 GOOD
MAX ADI LATE 138 VERY GOOD8 POOR 108 VERY GOOD
MAX LVORI EARLY 4 3 3
MAX LVORI LATE 1 4 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ078-182015-
HIGHER ELEVATIONS OF INDIANA-
INCLUDING THE CITY OF ARMAGH
244 AM EDT MON MAY 18 2026
TODAY TONIGHT TUE
CLOUD COVER CLEAR MCLEAR PCLDY
PRECIP TYPE NONE NONE NONE
CHANCE PRECIP (%) 0 0 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 87 (+5) 66 (+5) 86
RH % (24H TREND) 41 (-7) 80 (-7) 42
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR SW 7 G20
WIND 20FT/LATE(MPH) SW 8 LGT/VAR SW 11 G22
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION
PRECIP BEGIN
PRECIP END
MIXING HGT(M-AGL/MSL) 1870 2180
MIXING HGT(FT-AGL/MSL)6140 7150
TRANSPORT WND (MPH) SW 20 SW 22
VENT RATE (KT-FT) 104380 135850
CATEGORY DAY 5 5
INVERSION 73F/9AM 8PM 73F/9AM
DISPERSION 5 5
MAX ADI EARLY 67 GOOD 11 POOR 75 GOOD
MAX ADI LATE 131 VERY GOOD8 POOR 107 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.
WVZ001-182015-
HANCOCK-
INCLUDING THE CITY OF WEIRTON
244 AM EDT MON MAY 18 2026
TODAY TONIGHT TUE
CLOUD COVER MCLEAR PCLDY PCLDY
PRECIP TYPE NONE NONE TSTMS
CHANCE PRECIP (%) 0 0 20
CHANCE OF THUNDER (%) 0 0 20
TEMP (24H TREND) 89 (+4) 68 (+7) 88
RH % (24H TREND) 37 (-12) 75 (-15) 39
WIND 20FT/EARLY(MPH) S 5 SW 6 SW 7 G18
WIND 20FT/LATE(MPH) SW 9 G17 LGT/VAR SW 11 G21
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION 0
PRECIP BEGIN 2 PM
PRECIP END CONTINUING
MIXING HGT(M-AGL/MSL) 2180 1820
MIXING HGT(FT-AGL/MSL)7150 5970
TRANSPORT WND (MPH) SW 25 SW 24
VENT RATE (KT-FT) 157300 125370
CATEGORY DAY 5 5
INVERSION 73F/9AM 8PM 74F/9AM
DISPERSION 5 5
MAX ADI EARLY 85 GOOD 15 GEN POOR 77 GOOD
MAX ADI LATE 174 VERY GOOD7 POOR 107 VERY GOOD
MAX LVORI EARLY 4 3 3
MAX LVORI LATE 1 3 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ002-182015-
BROOKE-
INCLUDING THE CITIES OF FOLLANSBEE AND WELLSBURG
244 AM EDT MON MAY 18 2026
TODAY TONIGHT TUE
CLOUD COVER MCLEAR PCLDY MCLEAR
PRECIP TYPE NONE NONE NONE
CHANCE PRECIP (%) 0 0 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 90 (+7) 68 (+5) 88
RH % (24H TREND) 37 (-13) 75 (-10) 39
WIND 20FT/EARLY(MPH) S 5 SW 6 SW 8 G19
WIND 20FT/LATE(MPH) SW 9 G17 S 5 SW 12 G21
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION
PRECIP BEGIN
PRECIP END
MIXING HGT(M-AGL/MSL) 2110 1840
MIXING HGT(FT-AGL/MSL)6930 6050
TRANSPORT WND (MPH) SW 24 SW 23
VENT RATE (KT-FT) 145530 121000
CATEGORY DAY 5 5
INVERSION 73F/9AM 8PM 74F/9AM
DISPERSION 5 5
MAX ADI EARLY 84 GOOD 14 GEN POOR 79 GOOD
MAX ADI LATE 135 VERY GOOD7 POOR 107 VERY GOOD
MAX LVORI EARLY 4 3 3
MAX LVORI LATE 1 3 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ003-182015-
OHIO-
INCLUDING THE CITY OF WHEELING
244 AM EDT MON MAY 18 2026
TODAY TONIGHT TUE
CLOUD COVER MCLEAR PCLDY PCLDY
PRECIP TYPE NONE NONE NONE
CHANCE PRECIP (%) 0 0 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 89 (+5) 67 (+6) 88
RH % (24H TREND) 38 (-15) 78 (-13) 39
WIND 20FT/EARLY(MPH) S 6 SW 6 SW 8 G19
WIND 20FT/LATE(MPH) SW 9 G17 S 5 SW 12 G21
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION
PRECIP BEGIN
PRECIP END
MIXING HGT(M-AGL/MSL) 2120 2080
MIXING HGT(FT-AGL/MSL)6950 6820
TRANSPORT WND (MPH) SW 23 SW 23
VENT RATE (KT-FT) 139000 136400
CATEGORY DAY 5 5
INVERSION 73F/9AM 8PM 73F/9AM
DISPERSION 5 5
MAX ADI EARLY 79 GOOD 14 GEN POOR 74 GOOD
MAX ADI LATE 157 VERY GOOD8 POOR 110 VERY GOOD
MAX LVORI EARLY 4 3 3
MAX LVORI LATE 1 3 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ004-182015-
MARSHALL-
INCLUDING THE CITY OF MOUNDSVILLE
244 AM EDT MON MAY 18 2026
TODAY TONIGHT TUE
CLOUD COVER CLEAR PCLDY PCLDY
PRECIP TYPE NONE NONE NONE
CHANCE PRECIP (%) 0 0 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 89 (+5) 67 (+5) 88
RH % (24H TREND) 40 (-15) 78 (-6) 41
WIND 20FT/EARLY(MPH) SW 5 SW 5 SW 7 G19
WIND 20FT/LATE(MPH) SW 8 G17 LGT/VAR SW 11 G21
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION
PRECIP BEGIN
PRECIP END
MIXING HGT(M-AGL/MSL) 2190 2350
MIXING HGT(FT-AGL/MSL)7190 7720
TRANSPORT WND (MPH) SW 22 SW 23
VENT RATE (KT-FT) 136610 154400
CATEGORY DAY 5 5
INVERSION 73F/9AM 8PM 73F/9AM
DISPERSION 5 5
MAX ADI EARLY 75 GOOD 14 GEN POOR 85 GOOD
MAX ADI LATE 165 VERY GOOD8 POOR 114 VERY GOOD
MAX LVORI EARLY 4 3 3
MAX LVORI LATE 1 3 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ012-182015-
WETZEL-
INCLUDING THE CITY OF NEW MARTINSVILLE
244 AM EDT MON MAY 18 2026
TODAY TONIGHT TUE
CLOUD COVER CLEAR PCLDY PCLDY
PRECIP TYPE NONE NONE NONE
CHANCE PRECIP (%) 0 0 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 89 (+5) 66 (+4) 88
RH % (24H TREND) 40 (-17) 79 (-2) 40
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR SW 6 G18
WIND 20FT/LATE(MPH) SW 7 G17 LGT/VAR SW 9 G20
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION
PRECIP BEGIN
PRECIP END
MIXING HGT(M-AGL/MSL) 2220 2360
MIXING HGT(FT-AGL/MSL)7290 7760
TRANSPORT WND (MPH) SW 21 SW 22
VENT RATE (KT-FT) 131220 147440
CATEGORY DAY 5 5
INVERSION 73F/9AM 8PM 73F/9AM
DISPERSION 5 5
MAX ADI EARLY 74 GOOD 13 GEN POOR 107 VERY GOOD
MAX ADI LATE 158 VERY GOOD8 POOR 173 VERY GOOD
MAX LVORI EARLY 4 3 3
MAX LVORI LATE 1 3 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ021-182015-
MARION-
INCLUDING THE CITY OF FAIRMONT
244 AM EDT MON MAY 18 2026
TODAY TONIGHT TUE
CLOUD COVER MCLEAR PCLDY PCLDY
PRECIP TYPE NONE NONE TSTMS
CHANCE PRECIP (%) 0 0 20
CHANCE OF THUNDER (%) 0 0 20
TEMP (24H TREND) 89 (+5) 65 (+6) 88
RH % (24H TREND) 42 (-14) 81 (-12) 41
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR SW 5 G17
WIND 20FT/LATE(MPH) SW 7 LGT/VAR SW 9 G19
PRECIP AMOUNT 0.00 0.00 0.01
PRECIP DURATION 0
PRECIP BEGIN 2 PM
PRECIP END CONTINUING
MIXING HGT(M-AGL/MSL) 2180 2410
MIXING HGT(FT-AGL/MSL)7140 7910
TRANSPORT WND (MPH) SW 21 SW 22
VENT RATE (KT-FT) 128520 150290
CATEGORY DAY 5 5
INVERSION 72F/9AM 8PM 73F/9AM
DISPERSION 5 5
MAX ADI EARLY 80 GOOD 8 POOR 109 VERY GOOD
MAX ADI LATE 153 VERY GOOD5 VERY POOR 133 VERY GOOD
MAX LVORI EARLY 4 3 4
MAX LVORI LATE 1 4 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ509-182015-
MONONGALIA-
INCLUDING THE CITY OF MORGANTOWN
244 AM EDT MON MAY 18 2026
TODAY TONIGHT TUE
CLOUD COVER MCLEAR PCLDY PCLDY
PRECIP TYPE NONE NONE TSTMS
CHANCE PRECIP (%) 0 0 20
CHANCE OF THUNDER (%) 0 0 20
TEMP (24H TREND) 89 (+6) 66 (+4) 88
RH % (24H TREND) 41 (-15) 79 (-7) 40
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR SW 6 G17
WIND 20FT/LATE(MPH) SW 7 LGT/VAR SW 9 G19
PRECIP AMOUNT 0.00 0.00 0.01
PRECIP DURATION 0
PRECIP BEGIN 2 PM
PRECIP END CONTINUING
MIXING HGT(M-AGL/MSL) 2140 2420
MIXING HGT(FT-AGL/MSL)7010 7950
TRANSPORT WND (MPH) SW 20 SW 22
VENT RATE (KT-FT) 119170 151050
CATEGORY DAY 5 5
INVERSION 73F/9AM 8PM 74F/9AM
DISPERSION 5 5
MAX ADI EARLY 76 GOOD 11 POOR 104 VERY GOOD
MAX ADI LATE 148 VERY GOOD7 POOR 111 VERY GOOD
MAX LVORI EARLY 4 3 3
MAX LVORI LATE 1 3 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ510-182015-
RIDGES OF EASTERN MONONGALIA AND NORTHWESTERN PRESTON-
INCLUDING THE CITY OF COOPERS ROCK
244 AM EDT MON MAY 18 2026
TODAY TONIGHT TUE
CLOUD COVER MCLEAR PCLDY PCLDY
PRECIP TYPE NONE NONE TSTMS
CHANCE PRECIP (%) 0 0 20
CHANCE OF THUNDER (%) 0 0 20
TEMP (24H TREND) 87 (+6) 65 (+4) 86
RH % (24H TREND) 43 (-11) 76 (-8) 41
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR SW 5
WIND 20FT/LATE(MPH) SW 6 LGT/VAR SW 8 G18
PRECIP AMOUNT 0.00 0.00 0.03
PRECIP DURATION 0
PRECIP BEGIN 2 PM
PRECIP END CONTINUING
MIXING HGT(M-AGL/MSL) 1810 2500
MIXING HGT(FT-AGL/MSL)5950 8220
TRANSPORT WND (MPH) SW 18 SW 21
VENT RATE (KT-FT) 95200 147960
CATEGORY DAY 4 5
INVERSION 73F/9AM 8PM 73F/9AM
DISPERSION 4 5
MAX ADI EARLY 62 GOOD 7 POOR 100 GOOD
MAX ADI LATE 121 VERY GOOD6 VERY POOR 171 VERY GOOD
MAX LVORI EARLY 4 3 3
MAX LVORI LATE 1 3 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ511-182015-
PRESTON-
INCLUDING THE CITIES OF KINGWOOD AND BRUCETON MILLS
244 AM EDT MON MAY 18 2026
TODAY TONIGHT TUE
CLOUD COVER MCLEAR PCLDY PCLDY
PRECIP TYPE NONE NONE TSTMS
CHANCE PRECIP (%) 0 0 20
CHANCE OF THUNDER (%) 0 0 20
TEMP (24H TREND) 86 (+4) 64 (+5) 85
RH % (24H TREND) 43 (-8) 77 (-16) 40
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) SW 5 LGT/VAR SW 8 G17
PRECIP AMOUNT 0.00 0.00 0.01
PRECIP DURATION 0
PRECIP BEGIN 2 PM
PRECIP END CONTINUING
MIXING HGT(M-AGL/MSL) 1770 2530
MIXING HGT(FT-AGL/MSL)5800 8290
TRANSPORT WND (MPH) SW 17 SW 20
VENT RATE (KT-FT) 87000 140930
CATEGORY DAY 4 5
INVERSION 73F/9AM 8PM 73F/9AM
DISPERSION 4 5
MAX ADI EARLY 61 GOOD 6 VERY POOR 101 VERY GOOD
MAX ADI LATE 119 VERY GOOD5 VERY POOR 162 VERY GOOD
MAX LVORI EARLY 4 3 3
MAX LVORI LATE 1 3 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ512-182015-
EASTERN PRESTON-
INCLUDING THE CITIES OF TERRA ALTA, ROWLESBURG, AND HAZELTON
244 AM EDT MON MAY 18 2026
TODAY TONIGHT TUE
CLOUD COVER MCLEAR PCLDY PCLDY
PRECIP TYPE NONE NONE NONE
CHANCE PRECIP (%) 0 0 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 85 (+5) 64 (+4) 84
RH % (24H TREND) 45 (-8) 75 (-10) 41
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR SW 5 G17
WIND 20FT/LATE(MPH) SW 5 LGT/VAR SW 8 G17
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION
PRECIP BEGIN
PRECIP END
MIXING HGT(M-AGL/MSL) 1690 2410
MIXING HGT(FT-AGL/MSL)5560 7910
TRANSPORT WND (MPH) SW 15 SW 20
VENT RATE (KT-FT) 72280 134470
CATEGORY DAY 4 5
INVERSION 72F/9AM 8PM 72F/9AM
DISPERSION 4 5
MAX ADI EARLY 63 GOOD 6 VERY POOR 102 VERY GOOD
MAX ADI LATE 101 VERY GOOD5 VERY POOR 158 VERY GOOD
MAX LVORI EARLY 4 3 3
MAX LVORI LATE 1 3 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ513-182015-
WESTERN TUCKER-
INCLUDING THE CITIES OF PARSONS, HENDRICKS, AND SAINT GEORGE
244 AM EDT MON MAY 18 2026
TODAY TONIGHT TUE
CLOUD COVER MCLEAR PCLDY PCLDY
PRECIP TYPE TSTMS NONE NONE
CHANCE PRECIP (%) 20 0 0
CHANCE OF THUNDER (%) 20 0 0
TEMP (24H TREND) 86 (+2) 63 (+4) 84
RH % (24H TREND) 44 (-1) 76 (-10) 39
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR SW 8 G17
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION 0
PRECIP BEGIN 2 PM
PRECIP END 6 PM
MIXING HGT(M-AGL/MSL) 1800 2330
MIXING HGT(FT-AGL/MSL)5900 7640
TRANSPORT WND (MPH) SW 13 SW 20
VENT RATE (KT-FT) 64900 129880
CATEGORY DAY 4 5
INVERSION 71F/9AM 8PM 70F/9AM
DISPERSION 4 5
MAX ADI EARLY 67 GOOD 5 VERY POOR 105 VERY GOOD
MAX ADI LATE 88 GOOD 5 VERY POOR 154 VERY GOOD
MAX LVORI EARLY 4 3 3
MAX LVORI LATE 1 3 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ514-182015-
EASTERN TUCKER-
INCLUDING THE CITIES OF DAVIS, THOMAS, AND CANAAN VALLEY
244 AM EDT MON MAY 18 2026
TODAY TONIGHT TUE
CLOUD COVER MCLEAR PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS NONE
CHANCE PRECIP (%) 30 30 0
CHANCE OF THUNDER (%) 30 30 0
TEMP (24H TREND) 83 (+5) 62 (+4) 81
RH % (24H TREND) 46 (-4) 75 (-8) 41
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR W 6 G23
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR W 8 G22
PRECIP AMOUNT 0.01 0.01 0.00
PRECIP DURATION 1 1
PRECIP BEGIN 2 PM CONTINUING
PRECIP END CONTINUING 10 PM
MIXING HGT(M-AGL/MSL) 1780 2290
MIXING HGT(FT-AGL/MSL)5830 7500
TRANSPORT WND (MPH) SW 12 W 21
VENT RATE (KT-FT) 58300 135000
CATEGORY DAY 4 5
INVERSION 70F/9AM 8PM 69F/9AM
DISPERSION 4 5
MAX ADI EARLY 62 GOOD 6 VERY POOR 91 GOOD
MAX ADI LATE 83 GOOD 8 POOR 155 VERY GOOD
MAX LVORI EARLY 4 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 MID 60S. HIGHS IN THE MID 70S.
SOUTHWEST WINDS 5 TO 10 MPH.
THURSDAY
MOSTLY CLOUDY. LOWS IN THE UPPER 40S. HIGHS IN THE
UPPER 60S. NORTH WINDS AROUND 5 MPH.
FRIDAY
MOSTLY CLOUDY. SHOWERS LIKELY. LOWS IN THE LOWER 50S.
HIGHS AROUND 70. SOUTHEAST WINDS 10 TO 15 MPH.
SATURDAY
SHOWERS AND A CHANCE OF THUNDERSTORMS. LOWS IN THE
MID 50S. HIGHS IN THE MID 70S. SOUTH WINDS 15 TO 20 MPH.
SUNDAY
MOSTLY CLOUDY WITH SHOWERS LIKELY. LOWS AROUND 60.
HIGHS IN THE UPPER 70S. SOUTHWEST WINDS 5 TO 10 MPH.
CL
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