036
FXUS65 KSLC 140941
AFDSLC
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
341 AM MDT SUN SEP 14 2025
SYNOPSIS
HIGH PRESSURE WILL BRING DRY AND SEASONABLE CONDITIONS
ACROSS UTAH AND SOUTHWEST WYOMING TODAY. A PACIFIC NORTHWEST STORM
SYSTEM WILL GRAZE NORTHERN UTAH SUNDAY NIGHT INTO MONDAY, BRINGING
COOLER TEMPERATURES AND A CHANCE OF LIGHT SHOWERS. DRIER
CONDITIONS ARE EXPECTED TO PREVAIL THEREAFTER.
SHORT TERM (THROUGH 12Z/6AM TUESDAY)
SEEING CLEAR SKIES ACROSS
UTAH AND SOUTHWEST WYOMING THIS MORNING WITH HIGH PRESSURE
CENTERED OVER THE AREA. THE TROUGH THAT HAS BEEN IMPACTING THE
AREA OVER THE PAST FEW DAYS IS FINALLY EXITING TO THE EAST AS
ANOTHER TROUGH MOVES ONSHORE OVER THE PACIFIC NORTHWEST.
CONDITIONS WILL STAY DRY DURING THE DAY TODAY WITH MAXES RUNNING
NEAR TO A FEW DEGREES BELOW NORMAL FOR THIS TIME OF YEAR.
THE PACIFIC NORTHWEST STORM SYSTEM WILL QUICKLY SLIDE INTO IDAHO
THIS AFTERNOON BEFORE GRAZING NORTHERN UTAH TONIGHT INTO MONDAY.
THE PRIMARILY IMPACT FROM THIS WILL BE TO BRING A FRONTAL BOUNDARY
INTO NORTHERN UTAH THAT WILL BRING A 5-7F DECREASE IN MAXES FOR
THE NORTHERN THIRD OR SO OF THE AREA FOR MONDAY. THOUGH MOSTLY
DRY, A FEW ASSOCIATED SHOWERS WILL BE POSSIBLE, PRIMARILY FOR
AREAS NEAR THE UTAH/IDAHO BORDER.
LONG TERM (AFTER 12Z/6AM TUESDAY)
A SHORTWAVE EJECTING TO THE
EAST WILL LEAVE CONDITIONS DRY ON TUESDAY WITH TEMPERATURES NEAR
NORMAL ALONG WITH TEMPERATURES A FEW DEGREES ABOVE NORMAL FURTHER
SOUTH. A RIDGE BUILDS INTO THE AREA ON THE HEELS OF THIS SHORTWAVE
WITH TEMPERATURES GRADUALLY WARMING A FEW DEGREES ABOVE NORMAL
WEDNESDAY AND THURSDAY. TEMPERATURES ACROSS LOWER WASHINGTON COUNTY
WILL BE IN THE UPPER 90S TO NEAR 100 DEGREES.
THE RIDGE STARTS TO BREAK DOWN A BIT LATE IN THE WEEK WITH SOUTHERLY
FLOW ADVECTING MOISTURE BACK INTO THE AREA. THIS WILL HELP TO
DEVELOP DIURNAL CONVECTION THROUGH THE WEEKEND. A TROUGH OFF THE
WEST COAST WILL BRING UPPER LEVEL DIFFLUENCE TO PROVIDE MORE LIFT
FOR CONVECTION ACROSS THE AREA ON SATURDAY. ~56% OF ENSEMBLE MEMBERS
ARE ON THE WETTER SIDE OF THE SOLUTION, WHILE THE REMAINING 44% OF
MEMBERS ARE ON THE DRIER SIDE OF THE SOLUTION SPACE. ADDITIONALLY,
GUIDANCE DOES HINT AT SOME SHORTWAVES EJECTED OUT AHEAD OF THE
PARENT TROUGH OVER THE WEEKEND THAT COULD ENHANCE LIFT AND PROMOTE
MORE CONVECTION. THIS PATTERN WILL FAVOR TEMPERATURES NEAR NORMAL
GIVEN THE ABSENCE OF ANY COOLER CONTINENTAL AIRMASSES.
AVIATION...KSLC
VFR CONDITIONS WILL PERSIST FOR THE KSLC TERMINAL
THROUGH THE PERIOD. DRY CONDITIONS WITH A FEW MID LEVEL CLOUDS WILL
CONTINUE WITH LIGHT AND DIURNALLY DRIVEN WINDS.
REST OF UTAH AND SOUTHWEST WYOMING
VFR CONDITIONS WILL PERSIST
FOR THE ENTIRE AIRSPACE THROUGH THE PERIOD. CONDITIONS WILL REMAIN
DRY WITH A FEW MID LEVEL CLOUDS AND LIGHT DIURNALLY DRIVEN WINDS.
FIRE WEATHER
WEAK HIGH PRESSURE HAS MOVED OVER UTAH THIS MORNING
IN BETWEEN THE EXITING PACIFIC STORM SYSTEM AND A PACIFIC
NORTHWEST STORM SYSTEM THAT IS MOVING ONSHORE. AS A RESULT,
CONDITIONS WILL BE DRY TODAY WITH TEMPERATURES NEAR SEASONAL
NORMALS. THE PACIFIC NORTHWEST STORM SYSTEM WILL GRAZE NORTHERN
UTAH LATE SUNDAY INTO MONDAY, BRINGING A CHANCE OF SHOWERS TO
NORTHERN UTAH AND BRING A SLIGHT COOLDOWN IN TEMPERATURES. DRIER
CONDITIONS WILL THEN PREVAIL FOR MUCH OF THE WEEK BEHIND THE
EXITING STORM SYSTEM, WITH TEMPERATURES STAYING NEAR OR JUST BELOW
NORMAL FOR THIS TIME OF YEAR.
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
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page