958
FXUS65 KSLC 041125
AFDSLC
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
425 AM MST TUE NOV 4 2025
SYNOPSIS
MILD TEMPERATURES AND DRY CONDITIONS ARE EXPECTED ACROSS
THE REGION THROUGH MIDWEEK. SOUTHWESTERLY FLOW WILL INCREASE ON
WEDNESDAY AHEAD OF A SERIES OF WEAK SYSTEMS WHICH WILL IMPACT
NORTHERN UTAH AND SOUTHWEST WYOMING THURSDAY INTO SATURDAY.
STRONG HIGH PRESSURE WILL BUILD IN BY EARLY NEXT WEEK.
DISCUSSION
A MILD WEST-SOUTHWESTERLY FLOW ALOFT WILL REMAIN IN
PLACE OVER UTAH TODAY. A TROUGH MOVING BY WELL TO THE NORTH WILL
BRING SOME MID AND HIGH CLOUDS TO MAINLY NORTHERN UTAH THROUGH THE
DAY, OTHERWISE, EXPECT FAIRLY BENIGN WEATHER. AFTERNOON MAX
TEMPERATURES OF 6-12 DEGREES CAN BE EXPECTED ACROSS THE AREA TODAY.
SOUTHWESTERLY FLOW WILL INCREASE TOMORROW AHEAD OF THE NEXT
APPROACHING TROUGH. MOST GLOBAL DETERMINISTICS CONTINUE TO SHOW A
SOUTHERLY SURFACE PRESSURE GRADIENT ALONG WITH H7 WINDS 40-45 KT
ACROSS WEST-CENTRAL AND SOUTHWEST UTAH. THE NBM CONTINUES TO
MAINTAIN A 30-45% CHANCE OF REACHING WIND ADVISORY CRITERIA (45 MPH
GUSTS) ACROSS A SMALL AREA OF WESTERN MILLARD AND BEAVER COUNTIES.
THE HREF DOES NOT MIX AS MUCH OF THE STRONGER WINDS DOWN INTO THE
VALLEYS, BUT WIDESPREAD 35-40 MPH GUSTS ARE LIKELY. AS SUCH, HOLDING
OFF ON ANY WIND HIGHLIGHTS AT THIS TIME, BUT SOMETHING TO CONTINUE
TO MONITOR. HOWEVER, ENOUGH MIXING WILL OCCUR TO LIKELY BRING A BIT
OF A WARMING TREND TO AT LEAST PORTIONS OF WESTERN AND NORTHERN
UTAH. THE NBM HAS A 60% PERCENT CHANCE FOR SLC TO REACH 70F ON
WEDNESDAY AND A 24% CHANCE OF REACHING 72F.
THE TROUGH WILL TREND WEAKER BEFORE CROSSING NORTHERN UTAH LATE
WEDNESDAY NIGHT INTO THURSDAY. WHILE TEMPERATURES WILL TREND COOLER
(BACK DOWN TO NEAR TO SLIGHTLY ABOVE CLIMO), PRECIPITATION WILL NOT
BE VERY SIGNIFICANT AND LIMITED TO NORTHERN UTAH AND SOUTHWEST
WYOMING. HOWEVER, THE NBM HAS TRENDED A BIT HIGHER, THOUGH THE MEAN
VALUES REMAIN UNDER 0.33 INCHES EXCEPT IN THE BEAR RIVER RANGE WHERE
AMOUNTS ARE A BIT HIGHER. SNOW LEVELS WILL REMAIN WELL OFF THE
VALLEY FLOORS AT AROUND 7-7.5 KFT.
A BREAK IN THE WEATHER IS EXPECTED LATE THURSDAY INTO FRIDAY
AFTERNOON BEFORE ANOTHER SHORTWAVE TROUGH DROPS IN FROM THE
NORTHWEST AND GRAZES SOUTHWEST WYOMING. THIS MAY BRING ANOTHER ROUND
OF PRECIPITATION TO THE NORTH, BUT CURRENTLY, AMOUNTS ARE TRENDING A
BIT LESS THAN FOR THE WEDNESDAY NIGHT THROUGH THURSDAY STORM.
SLIGHTLY COOLER BUT NEAR SEASONAL TEMPERATURES ARE EXPECTED FOR
SATURDAY BEFORE TEMPERATURES SLOWLY REBOUND THROUGH THE EARLY PART
OF NEXT WEEK AS STRONG HIGH PRESSURE DEVELOPS OVER THE AREA. THERE
IS STRONG MODEL CONSENSUS ON A STRONG RIDGE; QUESTION IS WHEN IT
WILL BREAK DOWN, BUT THAT IS A QUESTION FOR ANOTHER DAY, AS IT LOOKS
LIKE IT WILL BE BEYOND THE 7-DAY FORECAST PERIOD.
AVIATION...KSLC
SOUTHEASTERLY WINDS WILL CONTINUE THROUGH THE
MORNING, GUSTING TO AROUND 20KTS AT TIMES AFTER ~15Z. WINDS WILL
THEN SHIFT TO NORTHWESTERLY AROUND 20-21Z. VFR CONDITIONS WILL
PREVAIL WITH FEW-SCT HIGH CLOUDS.
REST OF UTAH AND SOUTHWEST WYOMING
MOST AREAS WILL SEE LARGELY
LIGHT AND TERRAIN-DRIVEN WINDS THROUGH THE MORNING, WITH
SOUTHWESTERLY GUSTS TO AROUND 20KTS PICKING UP DURING THE AFTERNOON
AFTER ~18Z. VFR CONDITIONS WILL PREVAIL WITH FEW-SCT HIGH CLOUDS.
SLC WATCHES/WARNINGS/ADVISORIES
UT...NONE.
WY...NONE.
CHENG/CUNNINGHAM
FOR MORE INFORMATION FROM NOAA'S NATIONAL WEATHER SERVICE VISIT...
HTTP://WEATHER.GOV/SALTLAKECITY
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