963
FNUS75 KSLC 250111
FWSSLC
SPOT FORECAST FOR COTTONWOOD FIRE...USFS
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
711 PM MDT WED JUN 24 2026
FORECAST IS BASED ON FORECAST START TIME OF 1900 MDT ON JUNE 24.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
..RED FLAG WARNING IN EFFECT UNTIL 11 PM MDT THIS EVENING
...RED FLAG WARNING IN EFFECT FROM NOON FRIDAY TO 3 AM MDT
SUNDAY...
DISCUSSION
ANOTHER ROUND OF SHOWERS WITH ISOLATED THUNDERSTORMS
LOOK TO IMPACT THE BURN AREA BETWEEN 2200 AND 0300 TONIGHT. WHILE
NOT EXPECTING SIGNIFICANT RAINFALL, THERE IS A 35 PERCENT OF
WETTING RAIN. WINDS ARE LIKELY TO SHIFT TO NORTHWEST OR BECOME
ERRATIC WHEN THE SHOWERS ARRIVE. TOMORROW AFTERNOON, EXPECT ANOTHER
ROUND OF SCATTERED SHOWERS AND THUNDERSTORMS TO DEVELOP AGAIN,
MOST LIKELY WITHIN THE 1200-1800 TIMEFRAME. THESE SHOWERS ARE
EXPECTED TO KEEP RELATIVE HUMIDITIES ABOVE 25 PERCENT THROUGH
TOMORROW. THEREAFTER, THE AIRMASS WILL DRY OUT FOR FRIDAY INTO THE
WEEKEND WITH DAYTIME RELATIVE HUMIDITIES DIPPING TO NEAR OR BELOW
15 PERCENT. WITH STRENGTHENING SOUTHWESTERLY WINDS AHEAD OF A COLD
FRONT (EXPECT WIDESPREAD GUSTS IN EXCESS OF 40 MPH), THIS WILL
LEAD TO HIGHER-END CRITICAL FIRE WEATHER CONDITIONS FRIDAY
AFTERNOON THROUGH SATURDAY.
REST OF TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (55-65 PERCENT CLOUD COVER).
RAIN SHOWERS LIKELY AND SLIGHT CHANCE OF
THUNDERSTORMS UNTIL 0300.
CWR.................35 PERCENT.
CHANCE OF PCPN......70 PERCENT.
CHANCE OF LIGHTNING.20 PERCENT.
MIN TEMPERATURE.....47-50.
MAX HUMIDITY........86-89 PERCENT.
WIND (20 FT)........WEST-SOUTHWEST WINDS 12-18 MPH WITH GUSTS TO
AROUND 24 MPH TURNING NORTHWEST AFTER 2200, THEN
DECREASING TO 5-9 MPH AFTER 0300.
GUSTY AND ERRATIC WINDS EXPECTED NEAR SHOWERS
AND THUNDERSTORMS.
MIXING HEIGHT.......600 FT AGL.
TRANSPORT WINDS.....WEST 12 TO 17 MPH.
THURSDAY
SKY/WEATHER.........MOSTLY SUNNY (5-15 PERCENT CLOUD COVER) THEN
BECOMING PARTLY CLOUDY (40-50 PERCENT CLOUD
COVER). CHANCE OF RAIN SHOWERS AND THUNDERSTORMS
IN THE AFTERNOON.
CWR.................15 PERCENT.
CHANCE OF PCPN......30 PERCENT.
CHANCE OF LIGHTNING.25 PERCENT.
MAX TEMPERATURE.....68-71.
MIN HUMIDITY........27-30 PERCENT.
WIND (20 FT)........WEST-SOUTHWEST WINDS 5-10 MPH INCREASING TO 10-16
MPH WITH GUSTS TO 23 MPH AFTER 1100. GUSTY AND
ERRATIC WINDS EXPECTED NEAR SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON.
MIXING HEIGHT.......10700 FT AGL (80-90TH PERCENTILE).
TRANSPORT WINDS.....WEST 15 TO 22 MPH.
THURSDAY NIGHT
SKY/WEATHER.........MOSTLY CLEAR (5-15 PERCENT CLOUD COVER).
CWR.................0 PERCENT.
CHANCE OF PCPN......10 PERCENT UNTIL 2100.
CHANCE OF LIGHTNING.5 PERCENT UNTIL 2100.
MIN TEMPERATURE.....49-52.
MAX HUMIDITY........43-46 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS 8-14 MPH WITH GUSTS TO AROUND
22 MPH DECREASING TO 5-10 MPH AFTER 2200.
MIXING HEIGHT.......600 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 17 TO 22 MPH.
FRIDAY
SKY/WEATHER.........MOSTLY SUNNY (0-10 PERCENT CLOUD COVER).
CWR.................0 PERCENT.
CHANCE OF PCPN......0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MAX TEMPERATURE.....71-74.
MIN HUMIDITY........12-15 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS 15-24 MPH. GUSTS UP TO 38 MPH
INCREASING TO 45 MPH LATE IN THE AFTERNOON.
MIXING HEIGHT.......11200 FT AGL (90-95TH PERCENTILE).
TRANSPORT WINDS.....SOUTHWEST AROUND 22 MPH BECOMING AROUND 35 MPH
IN THE AFTERNOON.
FORECASTER...CHENG
REQUESTED BY...PSCC
TYPE OF REQUEST...WILDFIRE
.TAG 2616158.0/SLC
.DELDT 06/24/26
.FORMATTERVERSION 2.0.0
.EMAIL JUSTIN_SAIZ@FIRENET.GOV,2026.COTTONWOOD.RESOURCES@FIRENET.GOV
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