689
FNUS75 KSLC 152324
FWSSLC
SPOT FORECAST FOR WILLARD PEAK FIRE...FORESTRY, FIRE, AND STATE LANDS
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
524 PM MDT FRI AUG 15 2025
FORECAST IS BASED ON FORECAST START TIME OF 1800 MDT ON AUGUST 15.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
MIDLEVEL MOISTURE WILL REMAIN IN PLACE INTO TOMORROW,
MAINTAINING A CHANCE OF SHOWERS AND THUNDERSTORMS OVER NORTHERN
UTAH. FOR THE BURN SITE ITSELF, SHOWERS AND THUNDERSTORMS ARE
UNLIKELY FOR THE REST OF THE EVENING AND OVERNIGHT, BUT CANNOT
COMPLETELY RULE IT OUT. CHANCES INCREASE JUST SLIGHTLY TOMORROW,
WITH THE MOST FAVORABLE TIMEFRAME BEING 1400-2000. HOWEVER,
WETTING RAIN CHANCES REMAIN FAIRLY LOW, WITH GUSTY AND ERRATIC
OUTFLOW WINDS THE MAIN THREAT.
OUTSIDE OF SHOWERS AND THUNDERSTORMS, WINDS WILL MAINTAIN A
DIURNAL TREND WITH UPSLOPE/UPVALLEY DAYTIME WINDS AND
DOWNSLOPE/DOWNVALLEY NIGHTTIME WINDS. HOWEVER, WINDS MAY SEE AN
UPTICK FOR A FEW HOURS THIS EVENING FROM THE EAST-SOUTHEAST DUE TO
EXPECTED HIGHER SURFACE PRESSURE FROM SHOWERS OVER SOUTHERN AND
EASTERN UTAH. TOMORROW, DAYTIME WINDS ARE EXPECTED TO BE A BIT
STRONGER THAN WINDS TODAY. LOOKING AHEAD INTO SUNDAY AND MONDAY,
EXPECT CONDITIONS TO TREND WARMER AND DRIER WITH VERY LITTLE TO NO
CHANCE OF SHOWERS. DAYTIME SOUTHWEST WINDS LOOK TO BE SLIGHTLY
ENHANCED, SIMILAR TO TOMORROW.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (50-60 PERCENT CLOUD COVER).
ISOLATED SHOWERS AND THUNDERSTORMS EARLY IN THE
EVENING.
CWR.................5 PERCENT.
CHANCE OF PCPN......15 PERCENT.
CHANCE OF LIGHTNING.10 PERCENT.
MIN TEMPERATURE.....66-69.
MAX HUMIDITY........42-45 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS 5-10 MPH BECOMING EAST-SOUTHEAST
6-12 MPH WITH GUSTS UP TO 20 MPH AFTER 2100, THEN
BECOMING EAST-NORTHEAST 5-10 MPH AFTER MIDNIGHT.
GUSTY AND ERRATIC WINDS EXPECTED NEAR ANY SHOWERS
AND THUNDERSTORMS EARLY IN THE EVENING.
MIXING HEIGHT.......1000 FT AGL.
TRANSPORT WINDS.....SOUTHWEST AROUND 12 MPH BECOMING SOUTHEAST AROUND
16 MPH OVERNIGHT.
SATURDAY
SKY/WEATHER.........MOSTLY SUNNY (15-25 PERCENT CLOUD COVER).
ISOLATED SHOWERS AND THUNDERSTORMS LATE IN THE
AFTERNOON.
CWR.................5 PERCENT.
CHANCE OF PCPN......20 PERCENT.
CHANCE OF LIGHTNING.10 PERCENT.
MAX TEMPERATURE.....87-90.
MIN HUMIDITY........22-25 PERCENT.
WIND (20 FT)........EAST WINDS 3-6 MPH BECOMING SOUTHWEST 5-10 MPH AFTER
0900, INCREASING TO 6-12 MPH WITH GUSTS TO AROUND 18
MPH IN THE AFTERNOON. GUSTY AND ERRATIC
WINDS EXPECTED NEAR THUNDERSTORMS LATE IN THE
AFTERNOON.
MIXING HEIGHT.......11400 FT AGL.
CLIMATOLOGY......70-80TH PERCENTILE.
TRANSPORT WINDS.....SOUTHWEST AROUND 20 MPH.
SATURDAY NIGHT
SKY/WEATHER.........MOSTLY CLEAR (20-30 PERCENT CLOUD COVER).
ISOLATED SHOWERS AND THUNDERSTORMS EARLY IN THE
EVENING.
CWR.................5 PERCENT.
CHANCE OF PCPN......20 PERCENT.
CHANCE OF LIGHTNING.10 PERCENT.
MIN TEMPERATURE.....65-68.
MAX HUMIDITY........39-42 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS 5-10 MPH TURNING EAST-NORTHEAST
AFTER 2100. GUSTY AND ERRATIC WINDS EXPECTED NEAR
ANY SHOWERS AND THUNDERSTORMS EARLY IN THE EVENING.
MIXING HEIGHT.......900 FT AGL.
TRANSPORT WINDS.....SOUTHWEST AROUND 16 MPH BECOMING SOUTHEAST
AROUND 14 MPH OVERNIGHT.
FORECASTER...CHENG
REQUESTED BY...MORGAN MENDENHALL
TYPE OF REQUEST...WILDFIRE
.TAG 2519909.2/SLC
.DELDT 08/15/25
.FORMATTERVERSION 2.0.0
.EMAIL MORGAN.MENDENHALL@UTAH.GOV
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