900
FNUS75 KSLC 140159
FWSSLC
SPOT FORECAST FOR ROCKY CANYON...NUIFC
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
759 PM MDT THU AUG 13 2026
FORECAST IS BASED ON FORECAST START TIME OF 0600 MDT ON AUGUST 14.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
INCREASED MOISTURE WILL REMAIN IN PLACE OVER THE FIRE AREA
ON FRIDAY, HELPING TO MAINTAIN A MODERATED FIRE WEATHER
ENVIRONMENT. THOUGH HUMIDITY WILL REMAIN ELEVATED, DAYTIME MINIMUM
RH VALUES WILL BE AROUND 15 PERCENT LOWER THAN THEY WERE ON
THURSDAY. CLOUDY CONDITIONS ARE EXPECTED TO BE MAINTAINED
THROUGHOUT MUCH OF THE DAY, WITH AREA SHOWERS AND THUNDERSTORMS
DEVELOPING AFTER ABOUT 1200. PASSING STORMS WILL BRING POTENTIAL
FOR OUTFLOW WINDS IN EXCESS OF 25 MPH. OTHERWISE, ANTICIPATE WINDS
TO TRANSITION FROM SLOPE FLOWS IN THE MORNING TO A SOUTHWEST WIND
DURING THE LATE MORNING HOURS, THEN TO A WEST TO NORTHWEST FLOW
AROUND 1500-1600.
FRIDAY
SKY/WEATHER.........PARTLY CLOUDY (60-70 PERCENT CLOUD COVER).
SLIGHT CHANCE OF THUNDERSTORMS IN THE MORNING.
CHANCE OF RAIN SHOWERS THROUGH THE DAY. CHANCE
OF THUNDERSTORMS IN THE AFTERNOON.
CWR.................15 PERCENT.
CHANCE OF PCPN......40 PERCENT.
CHANCE OF LIGHTNING.40 PERCENT.
MAX TEMPERATURE.....LOW ELEVATIONS: 73-76
HIGH ELEVATIONS: 64-67
MIN HUMIDITY........45-55 PERCENT.
WIND (20 FT)........TERRAIN DRIVEN 4-6 MPH BEFORE 1000, THEN BECOMING
SOUTHWEST 10-15 MPH WITH GUSTS UP TO 20-25 MPH,
ESPECIALLY ON EXPOSED UPPER SLOPES AND RIDGES. WINDS
SHIFTING WEST TO NORTHWEST 10-15 MPH WITH GUSTS UP
TO 20 MPH ON RIDGES AFTER 1500-1600.
MIXING HEIGHT.......7000 FT AGL (50-60TH PERCENTILE).
TRANSPORT WINDS.....SOUTHWEST 15 TO 18 MPH.
FRIDAY NIGHT
SKY/WEATHER.........PARTLY CLOUDY (55-65 PERCENT CLOUD COVER).
CHANCE OF SHOWERS AND THUNDERSTORMS BEFORE 2200-2300,
WITH A SLIGHT CHANCE THROUGH 0200.
CWR.................5 PERCENT.
CHANCE OF PCPN......30 PERCENT.
CHANCE OF LIGHTNING.25 PERCENT.
MIN TEMPERATURE.....45-47.
MAX HUMIDITY........95-100 PERCENT IN THE LOWER ELEVATIONS, 75-85 IN THE
UPPER ELEVATIONS.
WIND (20 FT)........NORTHWEST AROUND 10 MPH THROUGH 2100, THEN BECOMING
DOWNSLOPE 4-7 MPH THEREAFTER.
TRANSPORT WINDS.....SOUTHWEST 7 TO 14 MPH.
FORECASTER...WEBBER
REQUESTED BY...MORGAN MENDENHALL
TYPE OF REQUEST...WILDFIRE
.TAG 2619568.1/SLC
.DELDT 08/13/26
.FORMATTERVERSION 2.0.0
.EMAIL MORGANMENDENHALL@UTAH.GOV
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page