844
FNUS75 KSLC 240106
FWSSLC
SPOT FORECAST FOR YELLOWPINE PILES RX...USFS
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
706 PM MDT WED SEP 23 2026
FORECAST IS BASED ON IGNITION TIME OF 2000 MDT ON SEPTEMBER 23.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
HIGH PRESSURE BUILDING OVER THE AREA WILL BRING LIGHT,
TERRAIN-DRIVEN WINDS THURSDAY, HOWEVER MIXING IS EXPECTED TO BE
DEEP ENOUGH TO BOOST THE CLEARING INDEX OVER 500. DAYTIME HEATING
WILL ALLOW FOR CUMULUS BUILDUPS ALONG THE RIDGELINES NORTH OF THE
BURN AREA, WITH ANY ISOLATED SHOWER OR THUNDERSTORM ACTIVITY
EXPECTED TO REMAIN NORTH OF THE SITE. AFTER A NIGHT OF GOOD
RECOVERY, RH VALUES WILL REMAIN ELEVATED ABOVE 40% THROUGH THE
MORNING, BEFORE FALLING BELOW 30% AFTER 1300. THIS HIGH WILL MOVE
EAST ON FRIDAY, WITH WESTERLY FLOW ALOFT BRINGING A WARMING AND
DRYING TREND ALONG WITH GOOD MIXING.
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR (15-25 PERCENT CLOUD COVER).
CWR.................0 PERCENT.
CHANCE OF PCPN......0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MIN TEMPERATURE.....44-46.
MAX HUMIDITY........65-75 PERCENT.
WIND (20 FT)........NORTHWEST/DOWN-DRAINAGE 2-6 MPH.
MIXING HEIGHT.......FALLING TO AROUND 600 FT AGL.
TRANSPORT WINDS.....NORTHWEST 5 MPH.
THURSDAY
SKY/WEATHER.........MOSTLY SUNNY (20-30 PERCENT CLOUD COVER) THEN
BECOMING PARTLY CLOUDY (40-50 PERCENT CLOUD
COVER).
CWR.................0 PERCENT.
CHANCE OF PCPN......5 PERCENT.
CHANCE OF LIGHTNING.2 PERCENT.
MAX TEMPERATURE.....AROUND 70.
MIN HUMIDITY........22-27 PERCENT.
WIND (20 FT)........NORTHWEST/DOWN-DRAINAGE 2-5 MPH UNTIL 0900
THEN SHIFTING TO SOUTHEAST/UP-DRAINAGE 3-8 MPH
AFTER 1000.
MIXING HEIGHT.......RISING TO 6000 FT AGL (50TH PERCENTILE).
TRANSPORT WINDS.....NORTHWEST 5 MPH BECOMING SOUTHEAST 8 MPH AFTER
1000.
CLEARING INDEX......550.
THURSDAY NIGHT
SKY/WEATHER.........PARTLY CLOUDY (55-65 PERCENT CLOUD COVER) IN
THE EVENING, THEN BECOMING MOSTLY CLEAR (5-15
PERCENT CLOUD COVER).
CWR.................0 PERCENT.
CHANCE OF PCPN......0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MIN TEMPERATURE.....45-49.
MAX HUMIDITY........45-55 PERCENT.
WIND (20 FT)........SOUTHEAST/UP-DRAINAGE 2-5 MPH EARLY, BECOMING
NORTHWEST 2-5 MPH BY 2000.
MIXING HEIGHT.......FALLING TO AROUND 600 FT AGL.
TRANSPORT WINDS.....NORTHWEST AROUND 5 MPH.
FRIDAY
SKY/WEATHER.........MOSTLY SUNNY (20-30 PERCENT CLOUD COVER).
CWR.................0 PERCENT.
CHANCE OF PCPN......0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MAX TEMPERATURE.....70-73.
MIN HUMIDITY........18-24 PERCENT.
WIND (20 FT)........NORTHWEST/DOWN-DRAINAGE 2-5 MPH UNTIL 0900
THEN SHIFTING TO SOUTHEAST/UP-DRAINAGE 3-8 MPH
AFTER 1000.
MIXING HEIGHT.......RISING TO 8500 FT AGL (60TH PERCENTILE).
TRANSPORT WINDS.....NORTHWEST 5 MPH BECOMING WEST 15 MPH IN THE
AFTERNOON.
CLEARING INDEX......1000+.
FORECASTER...SEAMAN
REQUESTED BY...KANAAN NEALLEY
TYPE OF REQUEST...PRESCRIBED
.TAG 2622238.1/SLC
.DELDT 09/23/26
.FORMATTERVERSION 2.0.0
.EMAIL KANAAN.NEALLEY@USDA.GOV,BRYAN.HUGHES@USDA.GOV,RYAN.CROW@USDA.GOV,JOSEPH.L.WILLIAMS@USDA.GOV
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