282
FNUS75 KSLC 292111
FWSSLC
SPOT FORECAST FOR BLACK CANYON FIRE...RIST
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
311 PM MDT SAT AUG 29 2026
FORECAST IS BASED ON FORECAST START TIME OF 1800 MDT ON AUGUST 29.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
A MOIST, MONSOONAL PATTERN WILL REMAIN IN PLACE THROUGH
MONDAY, WITH SHOWERS AND THUNDERSTORMS EACH DAY. THIS SHOWER AND
THUNDERSTORM ACTIVITY WILL BE CAPABLE OF HEAVY RAIN, GUSTY ERRATIC WINDS,
FREQUENT LIGHTNING AND HAIL. THROUGH MONDAY, LOOK FOR 0.50" TO 1.00" OF
RAIN, WITH LOCALLY HEAVIER AMOUNTS IN THE HEAVIEST THUNDERSTORM CORES.
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (75-85 PERCENT CLOUD COVER).
ROUNDS OF SHOWERS AND THUNDERSTORMS IN THE EVENING
THEN LIGHTER RAIN SHOWERS THROUGH THE NIGHT WITH A
SLIGHT CHANCE OF THUNDERSTORMS.
CWR.................65 PERCENT.
CHANCE OF PCPN......80 PERCENT.
CHANCE OF LIGHTNING.37 PERCENT.
MIN TEMPERATURE.....44-47.
MAX HUMIDITY........100 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS 7 TO 12 MPH AWAY FROM SHOWERS
AND THUNDERSTORMS, STRONGEST OVER THE NW PORTION
OF THE BURN SCAR. GUSTY AND ERRATIC
WINDS EXPECTED NEAR THUNDERSTORMS. WORST-CASE
SCENARIO GUSTS UP TO 35 MPH DURING THE EVENING.
MIXING HEIGHT.......600 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 10 TO 18 MPH.
SUNDAY
SKY/WEATHER.........PARTLY CLOUDY (60-70 PERCENT CLOUD COVER) THEN
BECOMING MOSTLY CLOUDY (75-85 PERCENT CLOUD
COVER). SLIGHT CHANCE OF THUNDERSTORMS IN THE
MORNING. RAIN SHOWERS LIKELY THROUGH THE DAY.
CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
CWR.................55 PERCENT.
CHANCE OF PCPN......70 PERCENT.
CHANCE OF LIGHTNING.45 PERCENT.
MAX TEMPERATURE.....63-66.
MIN HUMIDITY........54-57 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS 7 TO 12 MPH INCREASING TO
15-25 MPH BY LATE IN THE MORNING. GUSTY AND
ERRATIC WINDS IN AND NEAR THUNDERSTORMS. WORST
CASE SCENARIO GUSTS UP TO 50 MPH IN THE STRONGEST
THUNDERSTORM CELLS.
MIXING HEIGHT.......7800 FT AGL (50-60TH PERCENTILE).
TRANSPORT WINDS.....SOUTHWEST AROUND 23 MPH.
SUNDAY NIGHT
SKY/WEATHER.........PARTLY CLOUDY (50-60 PERCENT CLOUD COVER).
CHANCE OF SHOWERS AND THUNDERSTORMS EARLY IN
THE EVENING.
CWR.................5 PERCENT.
CHANCE OF PCPN......30 PERCENT.
CHANCE OF LIGHTNING.25 PERCENT.
MIN TEMPERATURE.....44-47.
MAX HUMIDITY........89-92 PERCENT.
WIND (20 FT)........WEST TO SOUTHWEST WINDS 15 TO 25 MPH DECREASING TO
5-12 MPH LATE IN THE EVENING ON RIDGETOPS. IN CANYONS,
WINDS BECOMING DOWNSLOPE 3-7 MPH AFTER MIDNIGHT. GUSTY AND ERRATIC WINDS
EXPECTED NEAR THUNDERSTORMS EARLY IN THE
EVENING.
MIXING HEIGHT.......600 FT AGL.
TRANSPORT WINDS.....WEST AROUND 22 MPH BECOMING SOUTHWEST AROUND 9
MPH OVERNIGHT.
MONDAY
SKY/WEATHER.........PARTLY CLOUDY (45-55 PERCENT CLOUD COVER) THEN
BECOMING MOSTLY CLOUDY (85-95 PERCENT CLOUD
COVER). CHANCE OF RAIN SHOWERS IN THE MORNING.
SLIGHT CHANCE OF THUNDERSTORMS LATE IN THE
MORNING, THEN RAIN SHOWERS AND CHANCE OF
THUNDERSTORMS IN THE AFTERNOON.
CWR.................65 PERCENT.
CHANCE OF PCPN......80 PERCENT.
CHANCE OF LIGHTNING.46 PERCENT.
MAX TEMPERATURE.....61-64.
MIN HUMIDITY........55-57 PERCENT.
WIND (20 FT)........DOWNSLOPE WINDS 2 TO 7 MPH IN THE MORNING BECOMING
SOUTHWEST 10-20 MPH IN THE AFTERNOON. ON RIDGETOPS,
SOUTH TO SOUTHWEST WINDS 5-12 MPH INCREASING TO 10-20
MPH IN THE AFTERNOON. GUSTY AND ERRATIC
WINDS EXPECTED NEAR THUNDERSTORMS IN THE LATE
MORNING AND AFTERNOON.
MIXING HEIGHT.......5200 FT AGL (40-50TH PERCENTILE).
TRANSPORT WINDS.....SOUTHWEST 8 TO 10 MPH.
FORECASTER...ADESMET
REQUESTED BY...RUTH KOHLER
TYPE OF REQUEST...WILDFIRE
.TAG 2620895.0/SLC
.DELDT 08/29/26
.FORMATTERVERSION 2.0.0
.EMAIL JEREMY_HRUSKA@FIRENET.GOV,JOHN_PELL@FIRENET.GOV,ANTHONY_COLLINS@FIRENET.GOV,RUTH_KOHLER@USDA.GOV
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