533
FNUS71 KPBZ 181752
FWSPBZ
SPOT FORECAST FOR WALNUT FIRE...DCNR
NATIONAL WEATHER SERVICE PITTSBURGH PA
152 PM EDT THU JUN 18 2026
FORECAST IS BASED ON FORECAST START TIME OF 1400 EDT ON JUNE 18.
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
WIND GUSTS WILL RANGE BETWEEN 35 TO 45MPH THIS AFTERNOON FROM THE WEST
WITH A PASSING LOW PRESSURE SYSTEM. MINRH VALUES WILL LIKELY RANGE BETWEEN
40 TO 60 PERCENT WITH REMNANT MOISTURE. WIND GUSTS WILL LIKELY DECREASE
BELOW 35 MPH BETWEEN 5PM AND 7PM THIS EVENING.
FORECASTER: HEFFERAN
REST OF TODAY
SKY/WEATHER.........MOSTLY SUNNY (35-45 PERCENT) THEN BECOMING
MOSTLY CLOUDY (75-85 PERCENT) THEN BECOMING
MOSTLY SUNNY (35-45 PERCENT). SLIGHT CHANCE OF
SHOWERS LATE IN THE AFTERNOON.
CHANCE OF PCPN......20 PERCENT.
CHANCE OF THUNDER...9 PERCENT.
MAX TEMPERATURE.....AROUND 76.
MIN HUMIDITY........51 PERCENT.
WIND (20 FT)........WEST WINDS 15 TO 17 MPH WITH GUSTS TO AROUND 26
MPH.
MIXING HEIGHT.......5600 FT AGL.
TRANSPORT WINDS.....WEST 33 TO 38 MPH.
LVORI...............1.
ADI.................122 EARLY IN THE MORNING INCREASING TO 165 IN
THE AFTERNOON.
TIME (EDT) 2PM 3PM 4PM 5PM
SKY (%).........42 82 40 44
WEATHER COV..... SCH
WEATHER TYPE.... RW
TSTM COV........
CHC OF PCPN (%).0 10 10 20
CHC OF THDR (%).0 10 10 10
TEMP............76 75 73 72
RH..............51 52 62 63
20 FT WIND DIR..W W W W
20 FT WIND SPD..16 15 15 14
20 FT WIND GUST.26 26 25 24
MIX HGT (KFT)...5.6 5.6 5.0 4.6
TRANSP WIND DIR.W W W W
TRANSP WIND SPD.38 38 36 33
LVORI...........1 1 1 1
ADI.............165 122 147 133
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (55-65 PERCENT) THEN BECOMING
PARTLY CLOUDY (35-45 PERCENT) THEN BECOMING
MOSTLY CLOUDY (45-55 PERCENT) THEN BECOMING
PARTLY CLOUDY (30-40 PERCENT). SLIGHT CHANCE OF
RAIN SHOWERS EARLY IN THE EVENING.
CHANCE OF PCPN......20 PERCENT.
CHANCE OF THUNDER...9 PERCENT.
MIN TEMPERATURE.....AROUND 53.
MAX HUMIDITY........98 PERCENT.
WIND (20 FT)........WEST WINDS 5 TO 14 MPH WITH GUSTS TO AROUND 22
MPH IN THE EVENING AND OVERNIGHT BECOMING
LIGHT.
MIXING HEIGHT.......500 FT AGL.
TRANSPORT WINDS.....WEST 23 TO 28 MPH DECREASING TO AROUND 8 MPH.
LVORI...............6.
ADI.................4 TO 37.
TIME (EDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........56 70 54 29 35 43 47 48 52 46 30 27
WEATHER COV.....SCH
WEATHER TYPE....RW
TSTM COV........
CHC OF PCPN (%).20 10 10 0 0 0 0 0 0 0 0 0
CHC OF THDR (%).10 10 0 0 0 0 0 0 0 0 0 0
TEMP............69 67 65 63 61 59 57 56 55 54 54 53
RH..............67 65 65 69 81 84 89 92 95 97 98 98
20 FT WIND DIR..W W W W W W W W W W W W
20 FT WIND SPD..12 11 9 7 6 6 5 5 4 4 3 3
20 FT WIND GUST.22 20 17 16 14 13 12 10 10 8 8 7
MIX HGT (KFT)...3.5 2.6 0.8 0.6 0.6 0.6 0.6 0.5 0.5 0.5 0.5 0.6
TRANSP WIND DIR.W W W W W W W W W W W W
TRANSP WIND SPD.28 23 18 16 14 13 12 10 10 9 9 8
LVORI...........3 3 3 3 4 4 5 6 6 7 9 9
ADI.............37 31 16 11 9 8 8 7 7 6 4 4
JUNETEENTH
SKY/WEATHER.........MOSTLY SUNNY (25-35 PERCENT).
CHANCE OF PCPN......10 PERCENT.
CHANCE OF THUNDER...6 PERCENT.
MAX TEMPERATURE.....AROUND 74.
MIN HUMIDITY........53 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING WEST 5 TO 12 MPH WITH
GUSTS TO AROUND 18 MPH EARLY IN THE MORNING.
MIXING HEIGHT.......5800 FT AGL.
TRANSPORT WINDS.....WEST 8 TO 16 MPH INCREASING TO 18 TO 22 MPH IN
THE AFTERNOON.
LVORI...............4.
ADI.................8 EARLY IN THE MORNING INCREASING TO 96 IN THE
AFTERNOON.
TIME (EDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........35 40 40 31 10 29 19 34 45 31 30 25
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CHC OF PCPN (%).0 0 0 0 0 0 10 10 10 0 0 0
CHC OF THDR (%).0 0 0 0 0 0 10 10 10 0 0 0
TEMP............53 54 58 61 66 68 70 71 72 72 73 72
RH..............97 97 92 83 69 63 61 58 58 56 53 54
20 FT WIND DIR..W W W W W W W W W W W W
20 FT WIND SPD..4 4 4 5 6 7 8 9 10 10 10 10
20 FT WIND GUST.7 8 8 10 11 13 14 16 17 18 18 18
MIX HGT (KFT)...0.4 0.5 1.2 2.1 3.3 4.1 4.7 5.2 5.3 4.9 5.8 5.5
TRANSP WIND DIR.W W W W W W W W W W W W
TRANSP WIND SPD.8 8 10 12 14 16 16 18 21 21 22 22
LVORI...........6 6 5 4 1 1 1 1 1 1 1 1
ADI.............8 8 15 31 56 79 89 78 88 85 96 94
FORECASTER...SKH
REQUESTED BY...JAKE WHITEHEAD
TYPE OF REQUEST...WILDFIRE
.TAG 2615776.0/PBZ
.DELDT 06/18/26
.FORMATTERVERSION 2.0.0
.EMAIL JAKEWHITEHEAD34@GMAIL.COM
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