234
FNUS51 KPBZ 270507
FWFPBZ
FIRE WEATHER PLANNING FORECAST
NATIONAL WEATHER SERVICE PITTSBURGH PA
107 AM EDT WED MAY 27 2026
DISCUSSION
A STALLED FRONTAL BOUNDARY WILL REMAIN OVER THE UPPER OH VALLEY
REGION TODAY. THIS WILL BE A FOCAL POINT FOR CONVECTION TO DEVELOP
AND CONTINUE THROUGH THE MORNING AND INTO THE COMING DAY. EXPECT
SHOWERS AND THUNDERSTORMS DEVELOPING ALONG I-70 AND SLOWLY
CREEPING NORTH THROUGH THE DAY. FLOODING RAINFALL IS POSSIBLE. A
PERIOD OF DRY WEATHER IS EXPECTED BEGINNING THURSDAY AND LASTING
INTO THE WEEKEND.
OHZ039-272015-
TUSCARAWAS-
INCLUDING THE CITIES OF NEW PHILADELPHIA AND DOVER
107 AM EDT WED MAY 27 2026
TODAY TONIGHT THU
CLOUD COVER MCLDY PCLDY MCLEAR
PRECIP TYPE TSTMS NONE NONE
CHANCE PRECIP (%) 50 0 0
CHANCE OF THUNDER (%) 20 0 0
TEMP (24H TREND) 77 (-4) 55 (-5) 74
RH % (24H TREND) 62 (+5) 84 (-11) 45
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR N 7
PRECIP AMOUNT 0.08 0.00 0.00
PRECIP DURATION 2
PRECIP BEGIN 6 AM
PRECIP END 5 PM
MIXING HGT(M-AGL/MSL) 790 1700
MIXING HGT(FT-AGL/MSL)2580 5580
TRANSPORT WND (MPH) NW 6 N 17
VENT RATE (KT-FT) 12900 83700
CATEGORY DAY 2 4
INVERSION 69F/10AM 7PM 62F/9AM
DISPERSION 2 4
MAX ADI EARLY 10 POOR 4 VERY POOR 71 GOOD
MAX ADI LATE 19 GEN POOR 4 VERY POOR 105 VERY GOOD
MAX LVORI EARLY 6 5 4
MAX LVORI LATE 4 5 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ040-272015-
CARROLL-
INCLUDING THE CITIES OF CARROLLTON AND MALVERN
107 AM EDT WED MAY 27 2026
TODAY TONIGHT THU
CLOUD COVER MCLDY PCLDY MCLEAR
PRECIP TYPE TSTMS NONE NONE
CHANCE PRECIP (%) 40 0 0
CHANCE OF THUNDER (%) 20 0 0
TEMP (24H TREND) 77 (-4) 55 (-4) 73
RH % (24H TREND) 59 (+5) 83 (-13) 44
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR N 5
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR N 9
PRECIP AMOUNT 0.04 0.00 0.00
PRECIP DURATION 2
PRECIP BEGIN 6 AM
PRECIP END 3 PM
MIXING HGT(M-AGL/MSL) 880 1610
MIXING HGT(FT-AGL/MSL)2880 5290
TRANSPORT WND (MPH) W 7 N 17
VENT RATE (KT-FT) 17280 79350
CATEGORY DAY 2 4
INVERSION 69F/10AM 7PM 62F/9AM
DISPERSION 2 4
MAX ADI EARLY 9 POOR 5 VERY POOR 75 GOOD
MAX ADI LATE 25 FAIR 5 VERY POOR 87 GOOD
MAX LVORI EARLY 6 4 4
MAX LVORI LATE 4 4 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ041-272015-
COLUMBIANA-
INCLUDING THE CITIES OF EAST LIVERPOOL, SALEM, AND COLUMBIANA
107 AM EDT WED MAY 27 2026
TODAY TONIGHT THU
CLOUD COVER MCLDY PCLDY MCLEAR
PRECIP TYPE SHOWERS NONE NONE
CHANCE PRECIP (%) 20 0 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 79 (-3) 54 (-5) 73
RH % (24H TREND) 55 (+4) 81 (-12) 42
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR N 9
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION 1
PRECIP BEGIN 6 AM
PRECIP END 1 PM
MIXING HGT(M-AGL/MSL) 1070 1610
MIXING HGT(FT-AGL/MSL)3520 5280
TRANSPORT WND (MPH) NW 9 N 18
VENT RATE (KT-FT) 28160 84480
CATEGORY DAY 3 4
INVERSION 70F/10AM 7PM 61F/9AM
DISPERSION 3 4
MAX ADI EARLY 10 POOR 7 POOR 81 GOOD
MAX ADI LATE 38 FAIR 5 VERY POOR 96 GOOD
MAX LVORI EARLY 5 3 4
MAX LVORI LATE 3 4 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ048-272015-
COSHOCTON-
INCLUDING THE CITY OF COSHOCTON
107 AM EDT WED MAY 27 2026
TODAY TONIGHT THU
CLOUD COVER MCLDY PCLDY MCLEAR
PRECIP TYPE TSTMS NONE NONE
CHANCE PRECIP (%) 70 0 0
CHANCE OF THUNDER (%) 30 0 0
TEMP (24H TREND) 77 (-4) 55 (-5) 74
RH % (24H TREND) 64 (+3) 87 (-12) 45
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR N 7
PRECIP AMOUNT 0.12 0.00 0.00
PRECIP DURATION 4
PRECIP BEGIN 6 AM
PRECIP END 5 PM
MIXING HGT(M-AGL/MSL) 670 1660
MIXING HGT(FT-AGL/MSL)2210 5430
TRANSPORT WND (MPH) NE 6 N 17
VENT RATE (KT-FT) 11050 81450
CATEGORY DAY 2 4
INVERSION 69F/10AM 7PM 62F/9AM
DISPERSION 2 4
MAX ADI EARLY 11 POOR 4 VERY POOR 66 GOOD
MAX ADI LATE 17 GEN POOR 4 VERY POOR 105 VERY GOOD
MAX LVORI EARLY 7 5 5
MAX LVORI LATE 4 5 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ049-272015-
HARRISON-
INCLUDING THE CITY OF CADIZ
107 AM EDT WED MAY 27 2026
TODAY TONIGHT THU
CLOUD COVER MCLDY PCLDY MCLEAR
PRECIP TYPE TSTMS NONE NONE
CHANCE PRECIP (%) 70 0 0
CHANCE OF THUNDER (%) 30 0 0
TEMP (24H TREND) 77 (-4) 55 (-5) 75
RH % (24H TREND) 64 (+10) 88 (-11) 42
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR N 7
PRECIP AMOUNT 0.12 0.00 0.00
PRECIP DURATION 4
PRECIP BEGIN 6 AM
PRECIP END 6 PM
MIXING HGT(M-AGL/MSL) 730 1780
MIXING HGT(FT-AGL/MSL)2390 5840
TRANSPORT WND (MPH) NW 7 N 17
VENT RATE (KT-FT) 14340 87600
CATEGORY DAY 2 4
INVERSION 69F/10AM 7PM 62F/9AM
DISPERSION 2 4
MAX ADI EARLY 9 POOR 5 VERY POOR 72 GOOD
MAX ADI LATE 19 GEN POOR 4 VERY POOR 100 GOOD
MAX LVORI EARLY 6 5 5
MAX LVORI LATE 4 5 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ050-272015-
JEFFERSON OH-
INCLUDING THE CITY OF STEUBENVILLE
107 AM EDT WED MAY 27 2026
TODAY TONIGHT THU
CLOUD COVER MCLDY PCLDY MCLEAR
PRECIP TYPE TSTMS NONE NONE
CHANCE PRECIP (%) 60 0 0
CHANCE OF THUNDER (%) 20 0 0
TEMP (24H TREND) 77 (-4) 55 (-5) 74
RH % (24H TREND) 60 (+6) 84 (-15) 40
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR N 8
PRECIP AMOUNT 0.13 0.00 0.00
PRECIP DURATION 2
PRECIP BEGIN 6 AM
PRECIP END 6 PM
MIXING HGT(M-AGL/MSL) 790 1730
MIXING HGT(FT-AGL/MSL)2600 5690
TRANSPORT WND (MPH) NW 7 N 17
VENT RATE (KT-FT) 15600 85350
CATEGORY DAY 2 4
INVERSION 69F/10AM 7PM 62F/9AM
DISPERSION 2 4
MAX ADI EARLY 11 POOR 5 VERY POOR 73 GOOD
MAX ADI LATE 22 FAIR 4 VERY POOR 109 VERY GOOD
MAX LVORI EARLY 6 4 4
MAX LVORI LATE 4 5 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ057-272015-
MUSKINGUM-
INCLUDING THE CITY OF ZANESVILLE
107 AM EDT WED MAY 27 2026
TODAY TONIGHT THU
CLOUD COVER MCLDY PCLDY MCLEAR
PRECIP TYPE TSTMS NONE NONE
CHANCE PRECIP (%) 90 0 0
CHANCE OF THUNDER (%) 40 0 0
TEMP (24H TREND) 77 (-4) 55 (-5) 76
RH % (24H TREND) 69 (+8) 93 (-7) 46
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR N 6
PRECIP AMOUNT 0.35 0.00 0.00
PRECIP DURATION 5
PRECIP BEGIN 6 AM
PRECIP END 6 PM
MIXING HGT(M-AGL/MSL) 630 1710
MIXING HGT(FT-AGL/MSL)2080 5620
TRANSPORT WND (MPH) N 6 N 16
VENT RATE (KT-FT) 10400 78680
CATEGORY DAY 1 4
INVERSION 69F/10AM 7PM 63F/9AM
DISPERSION 1 4
MAX ADI EARLY 10 POOR 3 VERY POOR 54 GEN GOOD
MAX ADI LATE 22 FAIR 4 VERY POOR 104 VERY GOOD
MAX LVORI EARLY 8 6 5
MAX LVORI LATE 4 6 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ058-272015-
GUERNSEY-
INCLUDING THE CITY OF CAMBRIDGE
107 AM EDT WED MAY 27 2026
TODAY TONIGHT THU
CLOUD COVER MCLDY PCLDY MCLEAR
PRECIP TYPE TSTMS NONE NONE
CHANCE PRECIP (%) 80 0 0
CHANCE OF THUNDER (%) 40 0 0
TEMP (24H TREND) 77 (-5) 55 (-5) 76
RH % (24H TREND) 68 (+10) 92 (-7) 43
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR N 7
PRECIP AMOUNT 0.24 0.00 0.00
PRECIP DURATION 6
PRECIP BEGIN 6 AM
PRECIP END 6 PM
MIXING HGT(M-AGL/MSL) 720 1910
MIXING HGT(FT-AGL/MSL)2360 6260
TRANSPORT WND (MPH) N 8 N 16
VENT RATE (KT-FT) 16520 87640
CATEGORY DAY 2 4
INVERSION 70F/10AM 7PM 63F/9AM
DISPERSION 2 4
MAX ADI EARLY 10 POOR 3 VERY POOR 67 GOOD
MAX ADI LATE 24 FAIR 4 VERY POOR 106 VERY GOOD
MAX LVORI EARLY 7 5 5
MAX LVORI LATE 4 6 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ059-272015-
BELMONT-
INCLUDING THE CITIES OF MARTINS FERRY AND ST. CLAIRSVILLE
107 AM EDT WED MAY 27 2026
TODAY TONIGHT THU
CLOUD COVER MCLDY PCLDY MCLEAR
PRECIP TYPE TSTMS NONE NONE
CHANCE PRECIP (%) 80 0 0
CHANCE OF THUNDER (%) 40 0 0
TEMP (24H TREND) 77 (-4) 55 (-6) 76
RH % (24H TREND) 69 (+10) 93 (-5) 43
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR N 7
PRECIP AMOUNT 0.35 0.00 0.00
PRECIP DURATION 5
PRECIP BEGIN 6 AM
PRECIP END 6 PM
MIXING HGT(M-AGL/MSL) 750 1800
MIXING HGT(FT-AGL/MSL)2450 5900
TRANSPORT WND (MPH) N 8 N 16
VENT RATE (KT-FT) 17150 82600
CATEGORY DAY 2 4
INVERSION 69F/10AM 7PM 63F/9AM
DISPERSION 2 4
MAX ADI EARLY 11 POOR 4 VERY POOR 65 GOOD
MAX ADI LATE 24 FAIR 4 VERY POOR 108 VERY GOOD
MAX LVORI EARLY 7 6 5
MAX LVORI LATE 5 6 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ068-272015-
NOBLE-
INCLUDING THE CITY OF CALDWELL
107 AM EDT WED MAY 27 2026
TODAY TONIGHT THU
CLOUD COVER MCLDY PCLDY MCLEAR
PRECIP TYPE TSTMS TSTMS NONE
CHANCE PRECIP (%) 90 40 0
CHANCE OF THUNDER (%) 50 40 0
TEMP (24H TREND) 77 (-4) 56 (-4) 77
RH % (24H TREND) 74 (+13) 96 (-4) 45
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR N 6
PRECIP AMOUNT 0.45 0.02 0.00
PRECIP DURATION 7 1
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 10 PM
MIXING HGT(M-AGL/MSL) 730 2010
MIXING HGT(FT-AGL/MSL)2390 6600
TRANSPORT WND (MPH) N 7 N 16
VENT RATE (KT-FT) 14340 92400
CATEGORY DAY 2 4
INVERSION 69F/10AM 7PM 63F/9AM
DISPERSION 2 4
MAX ADI EARLY 11 POOR 3 VERY POOR 64 GOOD
MAX ADI LATE 25 FAIR 3 VERY POOR 113 VERY GOOD
MAX LVORI EARLY 9 6 6
MAX LVORI LATE 5 7 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
OHZ069-272015-
MONROE-
INCLUDING THE CITY OF WOODSFIELD
107 AM EDT WED MAY 27 2026
TODAY TONIGHT THU
CLOUD COVER MCLDY PCLDY MCLEAR
PRECIP TYPE TSTMS TSTMS NONE
CHANCE PRECIP (%) 90 40 0
CHANCE OF THUNDER (%) 50 40 0
TEMP (24H TREND) 77 (-4) 57 (-5) 77
RH % (24H TREND) 75 (+12) 93 (-7) 45
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR N 6
PRECIP AMOUNT 0.53 0.02 0.00
PRECIP DURATION 8 1
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 10 PM
MIXING HGT(M-AGL/MSL) 750 2040
MIXING HGT(FT-AGL/MSL)2460 6700
TRANSPORT WND (MPH) N 8 N 16
VENT RATE (KT-FT) 17220 93800
CATEGORY DAY 2 4
INVERSION 69F/10AM 7PM 63F/9AM
DISPERSION 2 4
MAX ADI EARLY 12 POOR 3 VERY POOR 66 GOOD
MAX ADI LATE 23 FAIR 3 VERY POOR 113 VERY GOOD
MAX LVORI EARLY 7 6 6
MAX LVORI LATE 5 6 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ007-272015-
MERCER-
INCLUDING THE CITIES OF SHARON, HERMITAGE, AND GROVE CITY
107 AM EDT WED MAY 27 2026
TODAY TONIGHT THU
CLOUD COVER PCLDY PCLDY MCLEAR
PRECIP TYPE NONE NONE NONE
CHANCE PRECIP (%) 0 0 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 81 (-1) 53 (-4) 72
RH % (24H TREND) 50 (+12) 81 (-9) 45
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR N 5
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR N 9 G17
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION
PRECIP BEGIN
PRECIP END
MIXING HGT(M-AGL/MSL) 1280 1590
MIXING HGT(FT-AGL/MSL)4210 5210
TRANSPORT WND (MPH) NW 10 N 18
VENT RATE (KT-FT) 37890 83360
CATEGORY DAY 3 4
INVERSION 69F/9AM 7PM 61F/9AM
DISPERSION 3 4
MAX ADI EARLY 21 FAIR 9 POOR 92 GOOD
MAX ADI LATE 55 GEN GOOD 5 VERY POOR 92 GOOD
MAX LVORI EARLY 5 3 4
MAX LVORI LATE 2 4 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ008-272015-
VENANGO-
INCLUDING THE CITIES OF OIL CITY AND FRANKLIN
107 AM EDT WED MAY 27 2026
TODAY TONIGHT THU
CLOUD COVER PCLDY PCLDY MCLEAR
PRECIP TYPE NONE NONE NONE
CHANCE PRECIP (%) 0 0 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 81 (-1) 52 (-4) 72
RH % (24H TREND) 47 (+7) 80 (-9) 43
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR N 7
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION
PRECIP BEGIN
PRECIP END
MIXING HGT(M-AGL/MSL) 1410 1640
MIXING HGT(FT-AGL/MSL)4620 5390
TRANSPORT WND (MPH) NW 12 N 18
VENT RATE (KT-FT) 46200 86240
CATEGORY DAY 3 4
INVERSION 68F/9AM 8PM 57F/8AM
DISPERSION 3 4
MAX ADI EARLY 27 FAIR 8 POOR 99 GOOD
MAX ADI LATE 64 GOOD 5 VERY POOR 110 VERY GOOD
MAX LVORI EARLY 5 3 4
MAX LVORI LATE 1 5 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ009-272015-
FOREST-
INCLUDING THE CITY OF TIONESTA
107 AM EDT WED MAY 27 2026
TODAY TONIGHT THU
CLOUD COVER PCLDY PCLDY MCLEAR
PRECIP TYPE NONE NONE NONE
CHANCE PRECIP (%) 0 0 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 82 (0) 51 (-4) 71
RH % (24H TREND) 43 (+3) 81 (-7) 39
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR N 6
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION
PRECIP BEGIN
PRECIP END
MIXING HGT(M-AGL/MSL) 1550 1760
MIXING HGT(FT-AGL/MSL)5100 5770
TRANSPORT WND (MPH) NW 13 N 18
VENT RATE (KT-FT) 56100 92320
CATEGORY DAY 4 4
INVERSION 68F/9AM 8PM 56F/8AM
DISPERSION 4 4
MAX ADI EARLY 31 FAIR 9 POOR 99 GOOD
MAX ADI LATE 78 GOOD 5 VERY POOR 117 VERY GOOD
MAX LVORI EARLY 5 3 4
MAX LVORI LATE 1 4 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ013-272015-
LAWRENCE-
INCLUDING THE CITIES OF NEW CASTLE AND ELLWOOD CITY
107 AM EDT WED MAY 27 2026
TODAY TONIGHT THU
CLOUD COVER MCLDY PCLDY MCLEAR
PRECIP TYPE NONE NONE NONE
CHANCE PRECIP (%) 0 0 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 81 (-2) 53 (-5) 74
RH % (24H TREND) 51 (+4) 82 (-11) 42
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR N 8
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION
PRECIP BEGIN
PRECIP END
MIXING HGT(M-AGL/MSL) 1230 1590
MIXING HGT(FT-AGL/MSL)4040 5210
TRANSPORT WND (MPH) NW 10 N 18
VENT RATE (KT-FT) 36360 83360
CATEGORY DAY 3 4
INVERSION 72F/10AM 7PM 62F/9AM
DISPERSION 3 4
MAX ADI EARLY 16 GEN POOR 8 POOR 95 GOOD
MAX ADI LATE 50 GEN GOOD 5 VERY POOR 108 VERY GOOD
MAX LVORI EARLY 6 3 4
MAX LVORI LATE 3 4 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ014-272015-
BUTLER-
INCLUDING THE CITY OF BUTLER
107 AM EDT WED MAY 27 2026
TODAY TONIGHT THU
CLOUD COVER MCLDY PCLDY MCLEAR
PRECIP TYPE NONE NONE NONE
CHANCE PRECIP (%) 0 0 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 80 (-2) 53 (-5) 74
RH % (24H TREND) 54 (+1) 85 (-9) 44
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR N 8
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION
PRECIP BEGIN
PRECIP END
MIXING HGT(M-AGL/MSL) 1290 1750
MIXING HGT(FT-AGL/MSL)4220 5750
TRANSPORT WND (MPH) NW 10 N 18
VENT RATE (KT-FT) 37980 92000
CATEGORY DAY 3 4
INVERSION 68F/9AM 8PM 61F/9AM
DISPERSION 3 4
MAX ADI EARLY 16 GEN POOR 7 POOR 107 VERY GOOD
MAX ADI LATE 50 GEN GOOD 4 VERY POOR 114 VERY GOOD
MAX LVORI EARLY 6 4 4
MAX LVORI LATE 3 5 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ015-272015-
CLARION-
INCLUDING THE CITY OF CLARION
107 AM EDT WED MAY 27 2026
TODAY TONIGHT THU
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE NONE NONE NONE
CHANCE PRECIP (%) 0 0 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 81 (-1) 53 (-4) 72
RH % (24H TREND) 47 (-2) 82 (-9) 40
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR N 8
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION
PRECIP BEGIN
PRECIP END
MIXING HGT(M-AGL/MSL) 1470 1860
MIXING HGT(FT-AGL/MSL)4830 6100
TRANSPORT WND (MPH) NW 12 N 18
VENT RATE (KT-FT) 48300 97600
CATEGORY DAY 3 4
INVERSION 68F/9AM 8PM 57F/8AM
DISPERSION 3 4
MAX ADI EARLY 21 FAIR 9 POOR 108 VERY GOOD
MAX ADI LATE 63 GOOD 5 VERY POOR 122 VERY GOOD
MAX LVORI EARLY 6 3 4
MAX LVORI LATE 1 5 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ016-272015-
JEFFERSON PA-
INCLUDING THE CITIES OF PUNXSUTAWNEY AND BROOKVILLE
107 AM EDT WED MAY 27 2026
TODAY TONIGHT THU
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE NONE NONE NONE
CHANCE PRECIP (%) 0 0 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 80 (0) 53 (-5) 71
RH % (24H TREND) 47 (-4) 81 (-10) 39
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) W 5 LGT/VAR N 8 G17
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION
PRECIP BEGIN
PRECIP END
MIXING HGT(M-AGL/MSL) 1500 1920
MIXING HGT(FT-AGL/MSL)4930 6310
TRANSPORT WND (MPH) NW 13 N 18
VENT RATE (KT-FT) 54230 100960
CATEGORY DAY 4 4
INVERSION 68F/9AM 8PM 57F/8AM
DISPERSION 4 4
MAX ADI EARLY 25 FAIR 9 POOR 112 VERY GOOD
MAX ADI LATE 72 GOOD 4 VERY POOR 121 VERY GOOD
MAX LVORI EARLY 5 3 4
MAX LVORI LATE 2 4 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ020-272015-
BEAVER-
INCLUDING THE CITIES OF ALIQUIPPA, BEAVER FALLS, AMBRIDGE,
AND MONACA
107 AM EDT WED MAY 27 2026
TODAY TONIGHT THU
CLOUD COVER MCLDY PCLDY MCLEAR
PRECIP TYPE TSTMS NONE NONE
CHANCE PRECIP (%) 30 0 0
CHANCE OF THUNDER (%) 20 0 0
TEMP (24H TREND) 80 (-3) 55 (-6) 74
RH % (24H TREND) 55 (+5) 82 (-9) 41
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR N 7
PRECIP AMOUNT 0.03 0.00 0.00
PRECIP DURATION 1
PRECIP BEGIN 6 AM
PRECIP END 12 PM
MIXING HGT(M-AGL/MSL) 1050 1700
MIXING HGT(FT-AGL/MSL)3450 5570
TRANSPORT WND (MPH) W 8 N 18
VENT RATE (KT-FT) 24150 89120
CATEGORY DAY 3 4
INVERSION 70F/10AM 7PM 62F/9AM
DISPERSION 3 4
MAX ADI EARLY 13 GEN POOR 5 VERY POOR 90 GOOD
MAX ADI LATE 35 FAIR 4 VERY POOR 110 VERY GOOD
MAX LVORI EARLY 6 3 4
MAX LVORI LATE 4 5 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ021-272015-
ALLEGHENY-
INCLUDING THE CITY OF PITTSBURGH METRO AREA
107 AM EDT WED MAY 27 2026
TODAY TONIGHT THU
CLOUD COVER MCLDY PCLDY MCLEAR
PRECIP TYPE TSTMS NONE NONE
CHANCE PRECIP (%) 50 0 0
CHANCE OF THUNDER (%) 20 0 0
TEMP (24H TREND) 78 (-4) 56 (-5) 75
RH % (24H TREND) 62 (+6) 87 (-7) 43
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR N 9
PRECIP AMOUNT 0.13 0.00 0.00
PRECIP DURATION 2
PRECIP BEGIN 6 AM
PRECIP END 5 PM
MIXING HGT(M-AGL/MSL) 860 1820
MIXING HGT(FT-AGL/MSL)2820 5970
TRANSPORT WND (MPH) W 8 N 18
VENT RATE (KT-FT) 19740 95520
CATEGORY DAY 2 4
INVERSION 70F/10AM 7PM 62F/9AM
DISPERSION 2 4
MAX ADI EARLY 11 POOR 5 VERY POOR 93 GOOD
MAX ADI LATE 27 FAIR 4 VERY POOR 111 VERY GOOD
MAX LVORI EARLY 6 4 4
MAX LVORI LATE 4 5 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ022-272015-
ARMSTRONG-
INCLUDING THE CITIES OF KITTANNING AND FORD CITY
107 AM EDT WED MAY 27 2026
TODAY TONIGHT THU
CLOUD COVER MCLDY PCLDY MCLEAR
PRECIP TYPE SHOWERS NONE NONE
CHANCE PRECIP (%) 20 0 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 80 (-2) 53 (-6) 74
RH % (24H TREND) 55 (-3) 88 (-7) 43
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR N 8
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION 1
PRECIP BEGIN 6 AM
PRECIP END 11 AM
MIXING HGT(M-AGL/MSL) 1230 1910
MIXING HGT(FT-AGL/MSL)4020 6270
TRANSPORT WND (MPH) W 10 N 17
VENT RATE (KT-FT) 36180 94050
CATEGORY DAY 3 4
INVERSION 68F/9AM 7PM 61F/9AM
DISPERSION 3 4
MAX ADI EARLY 16 GEN POOR 7 POOR 108 VERY GOOD
MAX ADI LATE 48 GEN GOOD 4 VERY POOR 124 VERY GOOD
MAX LVORI EARLY 6 4 5
MAX LVORI LATE 3 5 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ029-272015-
WASHINGTON-
INCLUDING THE CITIES OF WASHINGTON AND CANONSBURG
107 AM EDT WED MAY 27 2026
TODAY TONIGHT THU
CLOUD COVER MCLDY PCLDY MCLEAR
PRECIP TYPE TSTMS NONE NONE
CHANCE PRECIP (%) 70 0 0
CHANCE OF THUNDER (%) 40 0 0
TEMP (24H TREND) 76 (-4) 55 (-6) 74
RH % (24H TREND) 67 (+7) 90 (-6) 44
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR N 8
PRECIP AMOUNT 0.43 0.00 0.00
PRECIP DURATION 4
PRECIP BEGIN 6 AM
PRECIP END 6 PM
MIXING HGT(M-AGL/MSL) 800 1890
MIXING HGT(FT-AGL/MSL)2640 6200
TRANSPORT WND (MPH) NW 8 N 18
VENT RATE (KT-FT) 18480 99200
CATEGORY DAY 2 4
INVERSION 69F/10AM 7PM 62F/9AM
DISPERSION 2 4
MAX ADI EARLY 12 POOR 4 VERY POOR 74 GOOD
MAX ADI LATE 24 FAIR 4 VERY POOR 107 VERY GOOD
MAX LVORI EARLY 6 5 5
MAX LVORI LATE 5 6 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ031-272015-
GREENE-
INCLUDING THE CITY OF WAYNESBURG
107 AM EDT WED MAY 27 2026
TODAY TONIGHT THU
CLOUD COVER MCLDY PCLDY MCLEAR
PRECIP TYPE TSTMS TSTMS NONE
CHANCE PRECIP (%) 90 40 0
CHANCE OF THUNDER (%) 40 30 0
TEMP (24H TREND) 75 (-4) 56 (-6) 74
RH % (24H TREND) 75 (+7) 92 (-7) 49
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR N 6
PRECIP AMOUNT 0.42 0.02 0.00
PRECIP DURATION 7 1
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 1 AM
MIXING HGT(M-AGL/MSL) 750 1940
MIXING HGT(FT-AGL/MSL)2450 6360
TRANSPORT WND (MPH) NW 7 N 17
VENT RATE (KT-FT) 14700 95400
CATEGORY DAY 2 4
INVERSION 69F/10AM 7PM 63F/9AM
DISPERSION 2 4
MAX ADI EARLY 14 GEN POOR 3 VERY POOR 70 GOOD
MAX ADI LATE 19 GEN POOR 3 VERY POOR 119 VERY GOOD
MAX LVORI EARLY 6 5 5
MAX LVORI LATE 5 6 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ073-272015-
WESTMORELAND-
INCLUDING THE CITIES OF MURRYSVILLE, GREENSBURG, NEW KENSINGTON,
LOWER BURRELL, LATROBE, AND MONESSEN
107 AM EDT WED MAY 27 2026
TODAY TONIGHT THU
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE TSTMS NONE NONE
CHANCE PRECIP (%) 60 0 0
CHANCE OF THUNDER (%) 20 0 0
TEMP (24H TREND) 77 (-4) 55 (-6) 74
RH % (24H TREND) 65 (+1) 94 (-5) 44
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR N 9
PRECIP AMOUNT 0.28 0.00 0.00
PRECIP DURATION 2
PRECIP BEGIN 6 AM
PRECIP END 6 PM
MIXING HGT(M-AGL/MSL) 870 2000
MIXING HGT(FT-AGL/MSL)2840 6550
TRANSPORT WND (MPH) W 9 N 18
VENT RATE (KT-FT) 22720 104800
CATEGORY DAY 2 5
INVERSION 69F/10AM 7PM 62F/9AM
DISPERSION 2 5
MAX ADI EARLY 12 POOR 5 VERY POOR 87 GOOD
MAX ADI LATE 27 FAIR 3 VERY POOR 102 VERY GOOD
MAX LVORI EARLY 7 5 6
MAX LVORI LATE 4 6 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ074-272015-
HIGHER ELEVATIONS OF WESTMORELAND-
INCLUDING THE CITIES OF LIGONIER AND DONEGAL
107 AM EDT WED MAY 27 2026
TODAY TONIGHT THU
CLOUD COVER MCLDY PCLDY MCLEAR
PRECIP TYPE TSTMS NONE NONE
CHANCE PRECIP (%) 60 0 0
CHANCE OF THUNDER (%) 20 0 0
TEMP (24H TREND) 77 (-2) 55 (-6) 75
RH % (24H TREND) 61 (-4) 91 (-4) 41
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR NW 7 G17
PRECIP AMOUNT 0.36 0.00 0.00
PRECIP DURATION 3
PRECIP BEGIN 6 AM
PRECIP END 6 PM
MIXING HGT(M-AGL/MSL) 720 2040
MIXING HGT(FT-AGL/MSL)2360 6690
TRANSPORT WND (MPH) NW 9 N 20
VENT RATE (KT-FT) 18880 113730
CATEGORY DAY 2 5
INVERSION 67F/9AM 7PM 61F/9AM
DISPERSION 2 5
MAX ADI EARLY 12 POOR 4 VERY POOR 95 GOOD
MAX ADI LATE 26 FAIR 4 VERY POOR 142 VERY GOOD
MAX LVORI EARLY 6 5 5
MAX LVORI LATE 4 6 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ075-272015-
FAYETTE-
INCLUDING THE CITY OF UNIONTOWN
107 AM EDT WED MAY 27 2026
TODAY TONIGHT THU
CLOUD COVER MCLDY PCLDY MCLEAR
PRECIP TYPE TSTMS TSTMS NONE
CHANCE PRECIP (%) 90 30 0
CHANCE OF THUNDER (%) 40 30 0
TEMP (24H TREND) 76 (-4) 56 (-6) 74
RH % (24H TREND) 72 (+6) 94 (-5) 47
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR N 7
PRECIP AMOUNT 0.55 0.01 0.00
PRECIP DURATION 6 1
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 1 AM
MIXING HGT(M-AGL/MSL) 620 1930
MIXING HGT(FT-AGL/MSL)2020 6320
TRANSPORT WND (MPH) NW 7 N 17
VENT RATE (KT-FT) 12120 94800
CATEGORY DAY 1 4
INVERSION 69F/10AM 6PM 63F/9AM
DISPERSION 1 4
MAX ADI EARLY 12 POOR 3 VERY POOR 61 GOOD
MAX ADI LATE 16 GEN POOR 3 VERY POOR 119 VERY GOOD
MAX LVORI EARLY 6 5 6
MAX LVORI LATE 4 7 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ076-272015-
HIGHER ELEVATIONS OF FAYETTE-
INCLUDING THE CITIES OF CHAMPION AND OHIOPYLE
107 AM EDT WED MAY 27 2026
TODAY TONIGHT THU
CLOUD COVER MCLDY PCLDY MCLEAR
PRECIP TYPE TSTMS TSTMS NONE
CHANCE PRECIP (%) 80 30 0
CHANCE OF THUNDER (%) 40 30 0
TEMP (24H TREND) 74 (-3) 55 (-5) 73
RH % (24H TREND) 69 (-3) 95 (-3) 44
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR NW 6
PRECIP AMOUNT 0.55 0.01 0.00
PRECIP DURATION 7 1
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 1 AM
MIXING HGT(M-AGL/MSL) 580 1960
MIXING HGT(FT-AGL/MSL)1890 6410
TRANSPORT WND (MPH) NW 8 N 18
VENT RATE (KT-FT) 13230 102560
CATEGORY DAY 2 4
INVERSION 66F/10AM 7PM 61F/9AM
DISPERSION 2 4
MAX ADI EARLY 14 GEN POOR 3 VERY POOR 79 GOOD
MAX ADI LATE 19 GEN POOR 3 VERY POOR 129 VERY GOOD
MAX LVORI EARLY 6 5 6
MAX LVORI LATE 4 7 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ077-272015-
INDIANA-
INCLUDING THE CITY OF INDIANA
107 AM EDT WED MAY 27 2026
TODAY TONIGHT THU
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS NONE NONE
CHANCE PRECIP (%) 20 0 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 78 (-2) 54 (-6) 74
RH % (24H TREND) 56 (-5) 90 (-5) 42
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR NW 8 G17
PRECIP AMOUNT 0.02 0.00 0.00
PRECIP DURATION 1
PRECIP BEGIN 6 AM
PRECIP END 5 PM
MIXING HGT(M-AGL/MSL) 1120 1980
MIXING HGT(FT-AGL/MSL)3690 6490
TRANSPORT WND (MPH) W 12 N 18
VENT RATE (KT-FT) 36900 103840
CATEGORY DAY 3 4
INVERSION 67F/9AM 7PM 58F/8AM
DISPERSION 3 4
MAX ADI EARLY 19 GEN POOR 8 POOR 106 VERY GOOD
MAX ADI LATE 46 GEN GOOD 4 VERY POOR 117 VERY GOOD
MAX LVORI EARLY 6 4 5
MAX LVORI LATE 3 6 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
PAZ078-272015-
HIGHER ELEVATIONS OF INDIANA-
INCLUDING THE CITY OF ARMAGH
107 AM EDT WED MAY 27 2026
TODAY TONIGHT THU
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS NONE NONE
CHANCE PRECIP (%) 30 0 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 77 (-2) 55 (-6) 73
RH % (24H TREND) 59 (-4) 90 (-4) 42
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR NW 8 G17
PRECIP AMOUNT 0.04 0.00 0.00
PRECIP DURATION 1
PRECIP BEGIN 6 AM
PRECIP END 1 PM
MIXING HGT(M-AGL/MSL) 930 1940
MIXING HGT(FT-AGL/MSL)3050 6380
TRANSPORT WND (MPH) W 12 N 18
VENT RATE (KT-FT) 30500 102080
CATEGORY DAY 3 4
INVERSION 67F/9AM 7PM 61F/9AM
DISPERSION 3 4
MAX ADI EARLY 18 GEN POOR 7 POOR 104 VERY GOOD
MAX ADI LATE 40 FAIR 4 VERY POOR 123 VERY GOOD
MAX LVORI EARLY 5 4 4
MAX LVORI LATE 3 6 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ001-272015-
HANCOCK-
INCLUDING THE CITY OF WEIRTON
107 AM EDT WED MAY 27 2026
TODAY TONIGHT THU
CLOUD COVER MCLDY PCLDY MCLEAR
PRECIP TYPE TSTMS NONE NONE
CHANCE PRECIP (%) 50 0 0
CHANCE OF THUNDER (%) 20 0 0
TEMP (24H TREND) 77 (-5) 56 (-5) 74
RH % (24H TREND) 58 (+5) 81 (-14) 41
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR N 7
PRECIP AMOUNT 0.06 0.00 0.00
PRECIP DURATION 1
PRECIP BEGIN 6 AM
PRECIP END 4 PM
MIXING HGT(M-AGL/MSL) 900 1720
MIXING HGT(FT-AGL/MSL)2940 5660
TRANSPORT WND (MPH) W 8 N 18
VENT RATE (KT-FT) 20580 90560
CATEGORY DAY 2 4
INVERSION 69F/10AM 7PM 62F/9AM
DISPERSION 2 4
MAX ADI EARLY 10 POOR 5 VERY POOR 81 GOOD
MAX ADI LATE 28 FAIR 4 VERY POOR 116 VERY GOOD
MAX LVORI EARLY 6 4 4
MAX LVORI LATE 4 5 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ002-272015-
BROOKE-
INCLUDING THE CITIES OF FOLLANSBEE AND WELLSBURG
107 AM EDT WED MAY 27 2026
TODAY TONIGHT THU
CLOUD COVER MCLDY PCLDY MCLEAR
PRECIP TYPE TSTMS NONE NONE
CHANCE PRECIP (%) 70 0 0
CHANCE OF THUNDER (%) 30 0 0
TEMP (24H TREND) 77 (-4) 57 (-5) 75
RH % (24H TREND) 63 (+8) 84 (-10) 40
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR N 7
PRECIP AMOUNT 0.31 0.00 0.00
PRECIP DURATION 3
PRECIP BEGIN 6 AM
PRECIP END 6 PM
MIXING HGT(M-AGL/MSL) 760 1770
MIXING HGT(FT-AGL/MSL)2490 5790
TRANSPORT WND (MPH) NW 7 N 17
VENT RATE (KT-FT) 14940 86850
CATEGORY DAY 2 4
INVERSION 69F/10AM 7PM 62F/9AM
DISPERSION 2 4
MAX ADI EARLY 12 POOR 4 VERY POOR 73 GOOD
MAX ADI LATE 21 FAIR 4 VERY POOR 114 VERY GOOD
MAX LVORI EARLY 6 4 4
MAX LVORI LATE 4 5 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ003-272015-
OHIO-
INCLUDING THE CITY OF WHEELING
107 AM EDT WED MAY 27 2026
TODAY TONIGHT THU
CLOUD COVER MCLDY PCLDY MCLEAR
PRECIP TYPE TSTMS TSTMS NONE
CHANCE PRECIP (%) 80 30 0
CHANCE OF THUNDER (%) 40 20 0
TEMP (24H TREND) 76 (-5) 56 (-6) 75
RH % (24H TREND) 69 (+11) 88 (-6) 43
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR N 7
PRECIP AMOUNT 0.41 0.00 0.00
PRECIP DURATION 5 0
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 8 PM
MIXING HGT(M-AGL/MSL) 760 1850
MIXING HGT(FT-AGL/MSL)2480 6080
TRANSPORT WND (MPH) NW 8 N 16
VENT RATE (KT-FT) 17360 85120
CATEGORY DAY 2 4
INVERSION 69F/10AM 7PM 62F/9AM
DISPERSION 2 4
MAX ADI EARLY 10 POOR 3 VERY POOR 69 GOOD
MAX ADI LATE 23 FAIR 4 VERY POOR 108 VERY GOOD
MAX LVORI EARLY 6 5 5
MAX LVORI LATE 5 6 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ004-272015-
MARSHALL-
INCLUDING THE CITY OF MOUNDSVILLE
107 AM EDT WED MAY 27 2026
TODAY TONIGHT THU
CLOUD COVER MCLDY PCLDY MCLEAR
PRECIP TYPE TSTMS TSTMS NONE
CHANCE PRECIP (%) 90 40 0
CHANCE OF THUNDER (%) 40 30 0
TEMP (24H TREND) 77 (-3) 58 (-5) 76
RH % (24H TREND) 74 (+7) 90 (-8) 46
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR N 6
PRECIP AMOUNT 0.45 0.02 0.00
PRECIP DURATION 8 1
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 11 PM
MIXING HGT(M-AGL/MSL) 740 1930
MIXING HGT(FT-AGL/MSL)2430 6340
TRANSPORT WND (MPH) N 7 N 16
VENT RATE (KT-FT) 14580 88760
CATEGORY DAY 2 4
INVERSION 69F/10AM 7PM 63F/9AM
DISPERSION 2 4
MAX ADI EARLY 11 POOR 3 VERY POOR 68 GOOD
MAX ADI LATE 20 GEN POOR 3 VERY POOR 111 VERY GOOD
MAX LVORI EARLY 6 5 5
MAX LVORI LATE 5 6 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ012-272015-
WETZEL-
INCLUDING THE CITY OF NEW MARTINSVILLE
107 AM EDT WED MAY 27 2026
TODAY TONIGHT THU
CLOUD COVER MCLDY PCLDY MCLEAR
PRECIP TYPE TSTMS TSTMS NONE
CHANCE PRECIP (%) 90 50 0
CHANCE OF THUNDER (%) 50 40 0
TEMP (24H TREND) 76 (-2) 58 (-5) 75
RH % (24H TREND) 81 (+9) 94 (-5) 48
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR N 5
PRECIP AMOUNT 0.48 0.05 0.00
PRECIP DURATION 9 1
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 12 AM
MIXING HGT(M-AGL/MSL) 630 2110
MIXING HGT(FT-AGL/MSL)2060 6930
TRANSPORT WND (MPH) NW 7 N 16
VENT RATE (KT-FT) 12360 97020
CATEGORY DAY 1 4
INVERSION 68F/10AM 7PM 63F/9AM
DISPERSION 1 4
MAX ADI EARLY 13 GEN POOR 3 VERY POOR 63 GOOD
MAX ADI LATE 19 GEN POOR 3 VERY POOR 116 VERY GOOD
MAX LVORI EARLY 7 6 6
MAX LVORI LATE 5 6 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ021-272015-
MARION-
INCLUDING THE CITY OF FAIRMONT
107 AM EDT WED MAY 27 2026
TODAY TONIGHT THU
CLOUD COVER MCLDY PCLDY MCLEAR
PRECIP TYPE TSTMS TSTMS NONE
CHANCE PRECIP (%) 90 60 0
CHANCE OF THUNDER (%) 50 40 0
TEMP (24H TREND) 74 (-4) 57 (-5) 75
RH % (24H TREND) 81 (+6) 98 (-2) 49
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR N 6
PRECIP AMOUNT 0.50 0.06 0.00
PRECIP DURATION 10 2
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 1 AM
MIXING HGT(M-AGL/MSL) 590 2180
MIXING HGT(FT-AGL/MSL)1950 7170
TRANSPORT WND (MPH) NW 8 N 16
VENT RATE (KT-FT) 13650 100380
CATEGORY DAY 2 4
INVERSION 67F/9AM 7PM 63F/9AM
DISPERSION 2 4
MAX ADI EARLY 16 GEN POOR 3 VERY POOR 53 GEN GOOD
MAX ADI LATE 20 GEN POOR 3 VERY POOR 125 VERY GOOD
MAX LVORI EARLY 8 6 7
MAX LVORI LATE 5 8 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ509-272015-
MONONGALIA-
INCLUDING THE CITY OF MORGANTOWN
107 AM EDT WED MAY 27 2026
TODAY TONIGHT THU
CLOUD COVER MCLDY PCLDY MCLEAR
PRECIP TYPE TSTMS TSTMS NONE
CHANCE PRECIP (%) 90 50 0
CHANCE OF THUNDER (%) 50 40 0
TEMP (24H TREND) 75 (-4) 58 (-5) 74
RH % (24H TREND) 77 (+8) 94 (-5) 49
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR N 6
PRECIP AMOUNT 0.44 0.03 0.00
PRECIP DURATION 10 1
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 1 AM
MIXING HGT(M-AGL/MSL) 600 2050
MIXING HGT(FT-AGL/MSL)1960 6720
TRANSPORT WND (MPH) NW 7 N 17
VENT RATE (KT-FT) 11760 100800
CATEGORY DAY 1 5
INVERSION 69F/10AM 7PM 63F/9AM
DISPERSION 1 5
MAX ADI EARLY 16 GEN POOR 3 VERY POOR 55 GEN GOOD
MAX ADI LATE 18 GEN POOR 3 VERY POOR 118 VERY GOOD
MAX LVORI EARLY 6 5 6
MAX LVORI LATE 5 6 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ510-272015-
RIDGES OF EASTERN MONONGALIA AND NORTHWESTERN PRESTON-
INCLUDING THE CITY OF COOPERS ROCK
107 AM EDT WED MAY 27 2026
TODAY TONIGHT THU
CLOUD COVER MCLDY PCLDY MCLEAR
PRECIP TYPE TSTMS TSTMS NONE
CHANCE PRECIP (%) 90 50 0
CHANCE OF THUNDER (%) 50 40 0
TEMP (24H TREND) 73 (-3) 57 (-4) 73
RH % (24H TREND) 78 (+4) 98 (-2) 48
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR N 6
PRECIP AMOUNT 0.41 0.03 0.00
PRECIP DURATION 9 1
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 1 AM
MIXING HGT(M-AGL/MSL) 540 2030
MIXING HGT(FT-AGL/MSL)1760 6670
TRANSPORT WND (MPH) W 8 N 17
VENT RATE (KT-FT) 12320 100050
CATEGORY DAY 2 5
INVERSION 67F/10AM 7PM 62F/9AM
DISPERSION 2 5
MAX ADI EARLY 16 GEN POOR 3 VERY POOR 49 GEN GOOD
MAX ADI LATE 19 GEN POOR 3 VERY POOR 120 VERY GOOD
MAX LVORI EARLY 7 6 6
MAX LVORI LATE 5 8 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ511-272015-
PRESTON-
INCLUDING THE CITIES OF KINGWOOD AND BRUCETON MILLS
107 AM EDT WED MAY 27 2026
TODAY TONIGHT THU
CLOUD COVER MCLDY PCLDY MCLEAR
PRECIP TYPE TSTMS TSTMS NONE
CHANCE PRECIP (%) 90 50 0
CHANCE OF THUNDER (%) 50 40 0
TEMP (24H TREND) 73 (-4) 56 (-5) 73
RH % (24H TREND) 75 (0) 98 (-2) 46
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR NW 6
PRECIP AMOUNT 0.46 0.04 0.00
PRECIP DURATION 10 1
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 2 AM
MIXING HGT(M-AGL/MSL) 620 2010
MIXING HGT(FT-AGL/MSL)2030 6610
TRANSPORT WND (MPH) NW 8 N 17
VENT RATE (KT-FT) 14210 99150
CATEGORY DAY 2 5
INVERSION 68F/10AM 7PM 63F/9AM
DISPERSION 2 5
MAX ADI EARLY 18 GEN POOR 4 VERY POOR 64 GOOD
MAX ADI LATE 20 GEN POOR 3 VERY POOR 125 VERY GOOD
MAX LVORI EARLY 7 6 6
MAX LVORI LATE 4 8 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ512-272015-
EASTERN PRESTON-
INCLUDING THE CITIES OF TERRA ALTA, ROWLESBURG, AND HAZELTON
107 AM EDT WED MAY 27 2026
TODAY TONIGHT THU
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE TSTMS TSTMS NONE
CHANCE PRECIP (%) 90 40 0
CHANCE OF THUNDER (%) 50 40 0
TEMP (24H TREND) 72 (-2) 57 (-3) 72
RH % (24H TREND) 76 (-5) 99 (-1) 48
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR NW 6
PRECIP AMOUNT 0.49 0.05 0.00
PRECIP DURATION 10 1
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 2 AM
MIXING HGT(M-AGL/MSL) 590 1960
MIXING HGT(FT-AGL/MSL)1950 6430
TRANSPORT WND (MPH) NW 9 N 18
VENT RATE (KT-FT) 15600 102880
CATEGORY DAY 2 4
INVERSION 65F/10AM 7PM 61F/9AM
DISPERSION 2 4
MAX ADI EARLY 19 GEN POOR 4 VERY POOR 72 GOOD
MAX ADI LATE 21 FAIR 3 VERY POOR 127 VERY GOOD
MAX LVORI EARLY 7 6 7
MAX LVORI LATE 5 8 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ513-272015-
WESTERN TUCKER-
INCLUDING THE CITIES OF PARSONS, HENDRICKS, AND SAINT GEORGE
107 AM EDT WED MAY 27 2026
TODAY TONIGHT THU
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE TSTMS TSTMS NONE
CHANCE PRECIP (%) 90 70 0
CHANCE OF THUNDER (%) 50 40 0
TEMP (24H TREND) 74 (-1) 57 (-4) 74
RH % (24H TREND) 72 (-7) 99 (-1) 44
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR NW 6
PRECIP AMOUNT 0.76 0.16 0.00
PRECIP DURATION 11 3
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 2 AM
MIXING HGT(M-AGL/MSL) 510 2130
MIXING HGT(FT-AGL/MSL)1660 6990
TRANSPORT WND (MPH) W 9 N 18
VENT RATE (KT-FT) 13280 111840
CATEGORY DAY 2 5
INVERSION 65F/9AM 7PM 60F/8AM
DISPERSION 2 5
MAX ADI EARLY 23 FAIR 5 VERY POOR 66 GOOD
MAX ADI LATE 25 FAIR 3 VERY POOR 133 VERY GOOD
MAX LVORI EARLY 7 6 7
MAX LVORI LATE 4 8 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
WVZ514-272015-
EASTERN TUCKER-
INCLUDING THE CITIES OF DAVIS, THOMAS, AND CANAAN VALLEY
107 AM EDT WED MAY 27 2026
TODAY TONIGHT THU
CLOUD COVER MCLDY MCLDY MCLEAR
PRECIP TYPE TSTMS TSTMS NONE
CHANCE PRECIP (%) 90 70 0
CHANCE OF THUNDER (%) 50 40 0
TEMP (24H TREND) 70 (-1) 54 (-4) 71
RH % (24H TREND) 78 (-4) 100 (0) 50
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) W 5 G19 LGT/VAR NW 7 G21
PRECIP AMOUNT 0.54 0.13 0.00
PRECIP DURATION 11 3
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 2 AM
MIXING HGT(M-AGL/MSL) 570 2000
MIXING HGT(FT-AGL/MSL)1880 6550
TRANSPORT WND (MPH) W 15 NW 20
VENT RATE (KT-FT) 24440 111350
CATEGORY DAY 2 5
INVERSION 64F/9AM 8PM 58F/8AM
DISPERSION 2 5
MAX ADI EARLY 29 FAIR 8 POOR 87 GOOD
MAX ADI LATE 33 FAIR 4 VERY POOR 138 VERY GOOD
MAX LVORI EARLY 7 7 7
MAX LVORI LATE 4 7 1
REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.
FORECAST FOR DAYS 3 THROUGH 7
FRIDAY
MOSTLY CLEAR. LOWS IN THE UPPER 40S. HIGHS IN THE MID
70S. LIGHT WINDS.
SATURDAY
MOSTLY CLEAR. LOWS IN THE LOWER 50S. HIGHS IN THE MID
70S. NORTH WINDS AROUND 5 MPH.
SUNDAY
MOSTLY CLEAR. LOWS IN THE UPPER 40S. HIGHS IN THE MID
70S. NORTH WINDS AROUND 5 MPH.
MONDAY
MOSTLY CLEAR. LOWS IN THE LOWER 50S. HIGHS IN THE MID
70S. NORTH WINDS 5 TO 10 MPH.
TUESDAY
MOSTLY CLEAR. LOWS IN THE LOWER 50S. HIGHS IN THE MID
70S. NORTHEAST WINDS 5 TO 10 MPH.
SHALLENBERGER
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