566
FNUS75 KSLC 182106
FWSSLC
SPOT FORECAST FOR D4 PILES...US FOREST SERVICE
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
206 PM MST TUE NOV 18 2025
FORECAST IS BASED ON IGNITION TIME OF 0700 MST ON NOVEMBER 19.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
A STORM SYSTEM WILL LINGER OVER THE DESERT SOUTHWEST THROUGH
WEDNESDAY, BRINGING PERIODS OF SNOWFALL OVER THE BURN AREA. WHEN
ALL IS SAID AND DONE, ANYWHERE FROM 5 TO 10 INCHES OF SNOWFALL ARE
EXPECTED AROUND 10000FT. WHILE THIS STORM SYSTEM WILL LINGER OVER
THE REGION, CLEARING INDEX WILL REMAIN QUITE LOW DUE TO LIMITED
MIXING HEIGHTS AND RELATIVELY WEAK TRANSPORT WINDS WITHIN THE
MIXED LAYER. THIS IS EXPECTED TO BE THE TREND OVER THE NEXT
SEVERAL DAYS AS THE CENTER OF ANOTHER STORM SYSTEM WILL PASS WELL
TO THE SOUTH OF THE BURN AREA WITH HIGH PRESSURE BUILDING INTO THE
REGION THEREAFTER. THUS, CLEARING INDEX IS EXPECTED TO REMAIN
WELL BELOW 500 DUE TO RELATIVELY WEAK WINDS AND LIMITED MIXING
HEIGHTS. THE NEXT POTENTIAL FOR CLEARING ABOVE 500 WILL ARRIVE BY
AROUND MID-WEEK NEXT WEEK AS A DEEPER STORM SYSTEM MAY PUSH INTO
THE REGION.
WEDNESDAY
SKY/WEATHER.........MOSTLY CLOUDY (75-85 PERCENT CLOUD COVER). SNOW
LIKELY, INTERMITTENT THROUGH THE DAY.
CWR.................55 PERCENT.
CHANCE OF PCPN......70 PERCENT.
CHANCE OF LIGHTNING.5 PERCENT.
MAX TEMPERATURE.....31-33.
MIN HUMIDITY........99-100 PERCENT.
WIND (20 FT)........SOUTH TO SOUTHEAST WINDS 5-9 MPH.
MIXING HEIGHT.......1200 FT AGL.
CLIMATOLOGY......20-30TH PERCENTILE.
TRANSPORT WINDS.....SOUTHEAST AROUND 10 TO 15 MPH.
CLEARING INDEX......250.
WEDNESDAY NIGHT
SKY/WEATHER.........MOSTLY CLOUDY (70-80 PERCENT CLOUD COVER). SNOW
LIKELY IN THE EVENING, THEN CHANCE OF SNOW LATE
IN THE EVENING.
CWR.................40 PERCENT.
CHANCE OF PCPN......60 PERCENT.
CHANCE OF LIGHTNING.5 PERCENT.
MIN TEMPERATURE.....20-22.
MAX HUMIDITY........100 PERCENT.
WIND (20 FT)........SOUTHEAST WINDS 5-7 MPH.
MIXING HEIGHT.......200 FT AGL.
TRANSPORT WINDS.....SOUTHEAST 14 TO 16 MPH.
THURSDAY
SKY/WEATHER.........MOSTLY CLOUDY (80-90 PERCENT CLOUD COVER). SNOW
LIKELY IN THE MORNING, THEN SNOW SHOWERS LIKELY
AND SLIGHT CHANCE OF THUNDERSTORMS IN THE
AFTERNOON.
CWR.................45 PERCENT.
CHANCE OF PCPN......60 PERCENT.
CHANCE OF LIGHTNING.10 PERCENT.
MAX TEMPERATURE.....30-32.
MIN HUMIDITY........100 PERCENT.
WIND (20 FT)........EAST WINDS 5-7 MPH BECOMING SOUTHWEST 3-7 MPH
LATE IN THE AFTERNOON.
MIXING HEIGHT.......1700 FT AGL.
CLIMATOLOGY......20-30TH PERCENTILE.
TRANSPORT WINDS.....NORTHEAST AROUND 8 MPH.
CLEARING INDEX......190.
FORECASTER...WEBBER
REQUESTED BY...SHANE WOOLSEY
TYPE OF REQUEST...PRESCRIBED
.TAG 2526317.0/SLC
.DELDT 11/18/25
.FORMATTERVERSION 2.0.0
.EMAIL SHANE.WOOLSEY@USDA.GOV
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