677
FNUS75 KSLC 241035
FWSSLC
SPOT FORECAST FOR RIGGS
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
435 AM MDT MON SEP 24 2018
DISCUSSION
THE COLD FRONT WHICH MOVED ACROSS NORTHERN UTAH LAST EVENING
WILL SAG SLOWLY INTO THE SOUTHERN MOUNTAINS TODAY. THERE IS JUST ENOUGH
MOISTURE AND CONVERGENCE ASSOCIATED WITH THIS COLD FRONT THAT I CAN NOT
RULE OUT AN ISOLATED SHOWER OR THUNDERSTORM THIS AFTERNOON.
OTHERWISE, EXPECT WINDS TO BE SOMEWHAT OF CHALLENGE TODAY WITH TERRAIN
INFLUENCES POSSIBLY BECOMING AN ISSUE. THE SURFACE GRADIENT WOULD TYPICALLY
SUPPORT A NORTHERLY COMPONENT, BUT THE WINDS ALOFT ARE WESTERLY. I BELIEVE
THE NORTHWEST TO NORTH WINDS MAY BE DOMINANT AT LIGHT SPEEDS THIS MORNING, BUT
BY 1100-1200 THE WEST SOUTHWEST WINDS WILL TAKE CHARGE AND GRADUALLY BECOME
WEST NORTHWEST BY LATE THIS AFTERNOON.
TODAY
SKY/WEATHER.........SUNNY (20-30 PERCENT CLOUD COVER) THEN BECOMING
PARTLY CLOUDY (30-40 PERCENT CLOUD COVER). ISOLATED
SHOWERS AND THUNDERSTORMS AFTER 1200.
CHANCE OF PCPN......10 PERCENT.
CWR.................0 PERCENT.
LAL.................1.
MAX TEMPERATURE.....74-76.
MIN HUMIDITY........23-25%.
WIND (20 FT)........NORTHWEST TO NORTH AT 4-8 MPH BECOMING 9-13 MPH IN THE
MIDDAY TO EARLY AFTERNOON HOURS.
HAINES INDEX........3 ..VERY LOW.
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR (5-15 PERCENT CLOUD COVER).
CHANCE OF PCPN......0 PERCENT.
CWR.................0 PERCENT.
LAL.................1.
MIN TEMPERATURE.....AROUND 50.
MAX HUMIDITY........43-45%.
WIND (20 FT)........WEST WINDS 8-12 MPH.
HAINES INDEX........3 ..VERY LOW.
TUESDAY
SKY/WEATHER.........SUNNY (5-15 PERCENT CLOUD COVER).
CHANCE OF PCPN......0 PERCENT.
CWR.................0 PERCENT.
LAL.................1.
MAX TEMPERATURE.....73-75.
MIN HUMIDITY........19-21%.
WIND (20 FT)........NORTHWEST WINDS 6-8 MPH BECOMING NORTH 2-4 MPH
IN THE AFTERNOON. MAY HAVE A BRIEF PERIOD OF UPSLOPE
SOUTHEAST WINDS BETWEEN 1000 AND 1200.
HAINES INDEX........3 ..VERY LOW.
FORECAST DAYS 3 THROUGH 5
WEDNESDAY
CLEAR. LOWS IN THE LOWER 40S. HIGHS IN THE MID 70S. NORTH WINDS
AROUND 11 MPH.
THURSDAY
CLEAR. LOWS IN THE MID 40S. HIGHS IN THE MID 70S. NORTHWEST WINDS
AROUND 8 MPH.
FRIDAY
MOSTLY CLEAR. LOWS IN THE MID 40S. HIGHS IN THE MID 70S. WEST
WINDS AROUND 10 MPH.
FORECASTER...STRUTHWOLF
REQUESTED BY...KIM SOPER
TYPE OF REQUEST...WILDFIRE
.TAG 1815070.28/SLC
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