284
FXUS65 KSLC 060821
AFDSLC
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
221 AM MDT SUN JUL 6 2025
SYNOPSIS
BUILDING HIGH PRESSURE WILL BRING DRY CONDITIONS AND
INCREASINGLY HOT TEMPERATURES THROUGH MIDWEEK. A WEAKENING TROUGH
WILL BRING TEMPERATURES BACK TO NEAR NORMAL BY THURSDAY, WITH
UNSEASONABLY HOT TEMPERATURES RETURNING BY THE UPCOMING WEEKEND.
DISCUSSION
HIGH PRESSURE IS CENTERED OVER THE DESERT SOUTHWEST
THIS MORNING WITH A CLOSED LOW OFF THE CALIFORNIA COAST. THE LOW
HAS A DRY SLOT OUT AHEAD OF IT, WITH LIGHT SOUTHWEST FLOW CONTINUE
TO ADVECT THAT DRY AIR INTO UTAH AND SOUTHWEST WYOMING. AS A
RESULT, SEEING MOSTLY CLEAR AND TRANQUIL CONDITIONS OVER THE AREA.
CONDITIONS TODAY WILL BE SIMILAR TO YESTERDAY WITH TEMPERATURES
NEAR SEASONAL NORMALS. GIVEN SOME WEAK SHORTWAVE ENERGY, THERE IS
A LOW CHANCE OF A FEW AFTERNOON SHOWERS OVER THE UINTAS, WITH
LITTLE MORE THAN SOME CUMULUS ANTICIPATED ELSEWHERE.
THE RIDGE IS EXPECTED TO EXPAND AND AMPLIFY THROUGH TUESDAY,
PUTTING AN INCREASINGLY HOT AIRMASS OVER THE FORECAST AREA. AS A
RESULT, WILL SEE TEMPERATURES STEADILY WARM OVER THE NEXT FEW
DAYS, AVERAGING 10F ABOVE SEASONAL NORMALS BY TUESDAY AFTERNOON.
THIS WILL PUT 100F HIGHS IN PLAY FOR PORTIONS OF THE WASATCH
FRONT, INCLUDING THE SALT LAKE VALLEY, WITH TEMPERATURES
APPROACHING 110F IN ST. GEORGE. THE PACIFIC LOW WILL TRACK SLOWLY
TOWARD THE CALIFORNIA COAST DURING THIS TIME, RESULTING IN SOME
POCKETS OF BREEZY WINDS, PRIMARILY OVER WESTERN UTAH, THAT COULD
INCREASE FIRE DANGER.
THE LOW IS EXPECTED TO WEAKEN RAPIDLY AS IT MOVES ACROSS THE GREAT
BASIN AND THROUGH NORTHERN UTAH TUESDAY NIGHT INTO WEDNESDAY.
ASSOCIATED MOISTURE WITH THE SYSTEM WILL BE LIMITED AT BEST AND
THE PRIMARY IMPACT WILL BE TO BRING TEMPERATURES BACK TO NEAR
NORMAL FOR THIS TIME OF YEAR BY THURSDAY. HOWEVER, MODELS ARE IN
UNUSUALLY GOOD AGREEMENT THAT THE RIDGE WILL REBOUND THEREAFTER,
BRINGING A RETURN TO THE UNSEASONABLY HOT TEMPERATURES BY THE
UPCOMING WEEKEND.
AVIATION...KSLC
VFR CONDITIONS WILL PREVAIL THROUGH THE PERIOD.
WITH A NORTHERLY GRADIENT, LIGHT DRAINAGE WINDS TURN NORTHWESTERLY
BY 16Z.
REST OF UTAH AND SOUTHWEST WYOMING
HIGH PRESSURE WILL BRING VFR
CONDITIONS AND LIGHT WINDS AT ALL TERMINALS ACROSS THE REGION.
FIRE WEATHER
HIGH PRESSURE OVER THE DESERT SOUTHWEST WILL BUILD
OVER UTAH FOR THE FIRST HALF OF THE WEEK, RESULTING IN DRY AND
INCREASINGLY HOT CONDITIONS. HIGH TEMPERATURES ARE EXPECTED TO RUN
UP TO 10F ABOVE SEASONAL NORMALS BY WEDNESDAY. WINDS ARE EXPECTED
TO REMAIN GENERALLY LIGHT, BUT AS A PACIFIC TROUGH EDGES TOWARD
THE CALIFORNIA COAST TUESDAY INTO WEDNESDAY, THERE IS A CHANCE OF
WINDS BECOMING STRONG ENOUGH IN SOME AREAS TO PRODUCE ISOLATED
CRITICAL FIRE WEATHER CONDITIONS, PRIMARILY OVER WESTERN UTAH.
THAT TROUGH IS EXPECTED TO CROSS THE AREA WEDNESDAY INTO THURSDAY
AS IT WEAKENS, PRODUCING LITTLE IN THE WAY OF IMPACTS. THE HOT AND
DRY CONDITIONS WILL THEN CONTINUE FOR THE LATTER HALF OF THE
UPCOMING WEEK.
SLC WATCHES/WARNINGS/ADVISORIES
UT...NONE.
WY...NONE.
PUBLIC/FIRE WEATHER...TRAPHAGAN
AVIATION...SEAMAN
FOR MORE INFORMATION FROM NOAA'S NATIONAL WEATHER SERVICE VISIT...
HTTP://WEATHER.GOV/SALTLAKECITY
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