904
FNUS75 KSLC 191621
FWSSLC
SPOT FORECAST FOR MILLCREEK PILES RX...USFS
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
1021 AM MDT SUN OCT 19 2025
FORECAST IS BASED ON IGNITION TIME OF 0800 MDT ON OCTOBER 20.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
WINDS WILL BE GUSTY TODAY BUT WILL BECOME LIGHT AND
TERRAIN DRIVEN TOMORROW BEHIND AN EXITING COLD FRONT. THE FRONT
WILL PASS THROUGH OVERNIGHT, BRINGING LITTLE IF ANY PRECIPITATION,
AND ITS MAIN IMPACT WILL BE MUCH COOLER TEMPERATURES TOMORROW
AFTERNOON. TRANSPORT WINDS SHOULD BE JUST ENOUGH TO BRING CLEARING
INDICES TO RIGHT AROUND 500 FOR MONDAY BEFORE THE AIRMASS BECOMES
INCREASINGLY STABLE FOR TUESDAY AND WEDNESDAY, LIMITING MIXING.
MONDAY
SKY/WEATHER.........PARTLY CLOUDY (30-40 PERCENT CLOUD COVER) THEN
BECOMING MOSTLY SUNNY (10-20 PERCENT CLOUD
COVER).
CWR.................0 PERCENT.
CHANCE OF PCPN......0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MAX TEMPERATURE.....36-40.
MIN HUMIDITY........42-46 PERCENT.
WIND (20 FT)........UPSLOPE/UPVALLEY WINDS 3-7 MPH.
MIXING HEIGHT.......2100 FT AGL.
CLIMATOLOGY......20-30TH PERCENTILE.
TRANSPORT WINDS.....WEST WINDS 15-20 MPH.
CLEARING INDEX......550.
MONDAY NIGHT
SKY/WEATHER.........MOSTLY CLEAR (5-15 PERCENT CLOUD COVER).
CWR.................0 PERCENT.
CHANCE OF PCPN......0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MIN TEMPERATURE.....24-28.
MAX HUMIDITY........46-55 PERCENT.
WIND (20 FT)........DOWNSLOPE/DOWNVALLEY WINDS UP TO 5 MPH.
MIXING HEIGHT.......0 FT AGL.
TRANSPORT WINDS.....NORTHWEST WINDS 5-10 MPH.
TUESDAY
SKY/WEATHER.........MOSTLY SUNNY (10-20 PERCENT CLOUD COVER).
CWR.................0 PERCENT.
CHANCE OF PCPN......0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MAX TEMPERATURE.....46-50.
MIN HUMIDITY........24-28 PERCENT.
WIND (20 FT)........UPSLOPE/UPVALLEY WINDS UP TO 5 MPH.
MIXING HEIGHT.......1700 FT AGL.
CLIMATOLOGY......20-30TH PERCENTILE.
TRANSPORT WINDS.....SOUTH WINDS 5-10 MPH.
CLEARING INDEX......110.
FORECASTER...TRAPHAGAN
REQUESTED BY...PETER NOBLE
TYPE OF REQUEST...PRESCRIBED
.TAG 2523895.0/SLC
.DELDT 10/19/25
.FORMATTERVERSION 2.0.0
.EMAIL PETER.NOBLE@USDA.GOV,PENG.BOI@USDA.GOV
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