715
FNUS75 KSLC 150931
FWSSLC
SPOT FORECAST FOR WESTERN ROUGHNECK...USFS
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
331 AM MDT THU OCT 15 2026
FORECAST IS BASED ON IGNITION TIME OF 0600 MDT ON OCTOBER 15.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
CORRECTED TO INCLUDE EXTENDED FORECAST
DISCUSSION
IN THE WAKE OF A DEPARTING LOW PRESSURE SYSTEM, HIGH
PRESSURE BUILDING IN FROM THE NORTH WILL RESULT IN GUSTY EAST WINDS
THROUGH MID AFTERNOON. DESPITE LIMITED MIXING DUE TO THIS BUILDING
HIGH, THESE WINDS WILL BOOST THE CLEARING INDEX ABOVE 500 THIS
AFTERNOON. THIS BUILDING HIGH WILL BRING DRY AND STABLE CONDITIONS
AGAIN FRIDAY, WITH LIGHT TERRAIN-DRIVEN WINDS AND MARGINAL
VENTILATION.
HIGH PRESSURE WILL REMAIN OVERHEAD SATURDAY AND SUNDAY MAINTAINING
DRY, MILD AND FAIRLY STABLE CONDITIONS WITH TERRAIN-DRIVEN WINDS.
A GRADUAL INCREASE IN MIXING OVER THE WEEKEND INTO EARLY NEXT WEEK
WILL RESULT IN IMPROVED VENTILATION BY SUNDAY.
TODAY
SKY/WEATHER.........PARTLY CLOUDY (40-55 PERCENT CLOUD COVER) IN
THE MORNING THEN BECOMING SUNNY (0-10 PERCENT
CLOUD COVER).
CWR.................0 PERCENT.
CHANCE OF PCPN......0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MAX TEMPERATURE.....41-45.
MIN HUMIDITY........53-57 PERCENT.
WIND (20 FT)........EAST 6-12 MPH WITH GUSTS AROUND 20 MPH THROUGH
MID-AFTERNOON, BECOMING NORTHEAST 4-8 MPH
AFTER 1500.
MIXING HEIGHT.......2600 FT AGL (20-30TH PERCENTILE).
TRANSPORT WINDS.....EAST AROUND 20 MPH.
CLEARING INDEX......520.
TONIGHT
SKY/WEATHER.........CLEAR (0-10 PERCENT CLOUD COVER).
CWR.................0 PERCENT.
CHANCE OF PCPN......0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MIN TEMPERATURE.....23-27.
MAX HUMIDITY........59-64 PERCENT.
WIND (20 FT)........DOWNSLOPE/DOWN-DRAINAGE 2-6 MPH.
MIXING HEIGHT.......600 FT AGL.
TRANSPORT WINDS.....DOWN-DRAINAGE 5 MPH.
FRIDAY
SKY/WEATHER.........SUNNY (0-10 PERCENT CLOUD COVER).
CWR.................0 PERCENT.
CHANCE OF PCPN......0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MAX TEMPERATURE.....51-55.
MIN HUMIDITY........33-37 PERCENT.
WIND (20 FT)........NORTH/TERRAIN-DRIVEN 3-7 MPH.
MIXING HEIGHT.......2400 FT AGL (20-30TH PERCENTILE).
TRANSPORT WINDS.....SOUTHEAST AROUND 10 MPH.
CLEARING INDEX......230.
FORECAST DAYS 3 THROUGH 5
SATURDAY
MOSTLY CLEAR. LOWS IN THE MID 20S. HIGHS IN THE MID 50S.
NORTH WINDS AROUND 5 MPH. CLEARING INDEX 350.
SUNDAY
MOSTLY CLEAR. LOWS IN THE MID 20S. HIGHS IN THE LOWER 50S.
NORTH WINDS AROUND 5 MPH. CLEARING INDEX 510.
MONDAY
MOSTLY CLEAR. LOWS IN THE MID 20S. HIGHS IN THE LOWER 50S.
NORTH WINDS AROUND 5 MPH. CLEARING INDEX 560.
FORECASTER...SEAMAN
REQUESTED BY...SHANE MCCORMICK
TYPE OF REQUEST...PRESCRIBED
.TAG 2623712.1/SLC
.DELDT 10/15/26
.FORMATTERVERSION 2.0.0
.EMAIL JUSTIN.ROBINSON@USDA.GOV,THOMAS.HARBOUR@USDA.GOV,SHANE.MCCORMICK@USDA.GOV,RANDALL.DANIELSON@USDA.GOV
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