114
FXUS65 KSLC 070925
AFDSLC
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
325 AM MDT MON JUL 7 2025
SYNOPSIS
BUILDING HIGH PRESSURE WILL KEEP DRY AND INCREASINGLY
HOT CONDITIONS OVER UTAH AND SOUTHWEST WYOMING THROUGH MIDWEEK. A
WEAKENING TROUGH WILL MOVE ACROSS NORTHERN UTAH LATE WEDNESDAY
INTO THURSDAY, BRINGING TEMPERATURES BACK TO NEAR SEASONAL NORMALS
FOR THURSDAY. ANOTHER WARMING TREND IS ANTICIPATED BY THE UPCOMING
WEEKEND.
SHORT TERM (THROUGH 12Z/6AM WEDNESDAY)
SEEING ANOTHER NIGHT OF
MOSTLY CLEAR SKIES ACROSS UTAH AND SOUTHWEST WYOMING WITH HIGH
PRESSURE IN PLACE OVER THE DESERT SOUTHWEST. THIS RIDGE WILL BUILD
AND AMPLIFY OVER THE NEXT COUPLE OF DAYS, BRINGING INCREASINGLY
HOT TEMPERATURES TO THE REGION. HIGHS TODAY ARE EXPECTED TO BE
AROUND 5F ABOVE SEASONAL NORMALS AND ABOUT 10F ABOVE SEASONAL
NORMALS BY TUESDAY, PUTTING TRIPLE DIGIT TEMPERATURES BACK INTO
PLAY FOR SOME NORTHERN VALLEY LOCATIONS, INCLUDING THE WASATCH
FRONT. CONDITIONS WILL REMAIN DRY, WITH JUST SOME CUMULUS
DEVELOPING OVER THE HIGHER TERRAIN EACH AFTERNOON. AS A CLOSED LOW
OFF THE PACIFIC COAST TRACKS SLOWLY EAST, THERE WILL BE ENOUGH OF
AN INCREASE IN WINDS, PRIMARILY OVER WESTERN UTAH, BY TUESDAY TO
RESULT IN SOME ISOLATED CRITICAL FIRE WEATHER CONDITIONS GIVEN THE
HOT AND DRY AIRMASS.
LONG TERM (AFTER 12Z/6AM WEDNESDAY)
A SHORTWAVE PASSING THROUGH
NORTHERN UTAH ON WEDNESDAY WILL BRING THE ONLY (SMALL) CHANCE FOR
CONVECTION TO THE AREA THROUGH THE PERIOD. AFTER THIS PASSAGE, HIGH
PRESSURE BECOMES CENTERED OVER SOUTHERN CALIFORNIA. THIS POSITIONING
OF THE SUMMER RIDGE IS NOT CONDUCIVE FOR A MONSOON MOISTURE TAP
ACROSS UTAH. HOWEVER, THE SILVER LINING IN THIS LOCATION OF THE
RIDGE IS THAT IT KEEPS A LIGHT WESTERLY/NORTHERLY FLOW ALOFT ACROSS
THE AREA THAT WILL HELP TO LIMIT HOW HOT TEMPERATURES GET.
SOUTHERLY FLOW WILL INCREASE AHEAD OF THE APPROACHING SHORTWAVE.
THIS WILL RESULT IN SOUTHERLY WINDS GUSTING IN THE 20-30 MPH RANGE
ACROSS MUCH OF THE AREA. THESE GUSTY WINDS WILL PAIR WITH RH VALUES
IN THE UPPER SINGLE DIGITS TO LOW TEENS. MID AND UPPER LEVEL
MOISTURE WILL ADVECT INTO THE REGION AS THIS SHORTWAVE PASSES TO THE
NORTH. AS SUCH, THERE REMAINS A SMALL CHANCE FOR SOME CONVECTION ON
WEDNESDAY AFTERNOON/EVENING. FORECAST SOUNDINGS WITH INVERTED V
PROFILES WOULD SUGGEST VERY LITTLE QPF IS POSSIBLE ACROSS VALLEYS,
BUT THERE WILL EXIST THE THREAT FOR SOME MICROBURST WINDS.
ADDITIONALLY, WEDNESDAY WILL MOST LIKELY BE THE HOTTEST DAY OF THE 7
DAY PERIOD AS TEMPERATURES DROP BACK NEAR NORMAL AS NORTHWEST FLOW
BECOMES ESTABLISHED BEHIND THE SHORTWAVE WITH HIGH PRESSURE CENTERED
OVER SOUTHERN CALIFORNIA.
AVIATION...KSLC
VFR CONDITIONS WILL PERSIST FOR THE KSLC TERMINAL
THROUGH THE PERIOD. DRY CONDITIONS WITH CLEAR SKIES WILL CONTINUE AS
WINDS WILL BE LIGHT AND DIURNALLY DRIVEN.
REST OF UTAH AND SOUTHWEST WYOMING
VFR CONDITIONS WILL PERSIST
FOR THE ENTIRE AIRSPACE THROUGH THE PERIOD. DRY CONDITIONS WITH
MOSTLY CLEAR SKIES WILL CONTINUE AS WINDS WILL BE RELATIVELY LIGHT
AND DIURNALLY DRIVEN.
FIRE WEATHER
HIGH PRESSURE REMAINS PARKED OVER THE DESERT
SOUTHWEST THIS MORNING, WHERE IT WILL BUILD OVER THE NEXT FEW
DAYS. CONDITIONS WILL STAY DRY OVER UTAH WITH INCREASINGLY HOT
TEMPERATURES. HIGHS TUESDAY AND WEDNESDAY ARE FORECAST TO AVERAGE
AROUND 10F ABOVE SEASONAL NORMALS. A LOW OFF THE CALIFORNIA COAST
WILL SLOWLY MOVE EASTWARD THROUGH TUESDAY. AS IT APPROACHES, IT
WILL BRING UP WINDS ENOUGH TO PRODUCE VERY ISOLATED CRITICAL FIRE
WEATHER CONDITIONS, PRIMARILY OVER WESTERN UTAH. THIS TROUGH WILL
EVENTUALLY MOVE ACROSS NORTHERN UTAH LATE WEDNESDAY INTO THURSDAY
IN A SIGNIFICANTLY WEAKENED STATE. HOWEVER, WINDS WILL INCREASE
FURTHER WEDNESDAY AS IT APPROACHES, AND WHILE CRITICAL FIRE
WEATHER CONDITIONS ARE EXPECTED TO REMAIN ISOLATED, THEY WILL BE
MORE WIDESPREAD THAN PREVIOUS DAYS. THE TROUGH WILL BE MOSTLY TO
TOTALLY DRY, BUT WILL BRING A NOTABLE DROP IN TEMPERATURES BEHIND
IT. THURSDAY'S HIGHS ARE EXPECTED TO BE BACK TO AROUND NORMAL FOR
THIS TIME OF YEAR BEFORE ANOTHER WARMING TREND COMMENCES FOR THE
UPCOMING WEEKEND.
SLC WATCHES/WARNINGS/ADVISORIES
UT...NONE.
WY...NONE.
SHORT TERM/FIRE WEATHER...TRAPHAGAN
LONG TERM/AVIATION...MAHAN
FOR MORE INFORMATION FROM NOAA'S NATIONAL WEATHER SERVICE VISIT...
HTTP://WEATHER.GOV/SALTLAKECITY
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