037
FXUS65 KSLC 241014
AFDSLC
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
414 AM MDT THU APR 24 2025
SYNOPSIS
AN ACTIVE WEATHER PERIOD WILL REMAIN IN PLACE ACROSS
THE REGION THROUGH AT LEAST EARLY NEXT WEEK AS A COLD, LATE SEASON
TROUGH AIMS TO MOVE THROUGH THE WESTERN U.S. OVER THE WEEKEND.
SHORT TERM (THROUGH 12Z / 6AM SATURDAY)
AS OF 0330, SATELLITE
IMAGERY DEPICTS A SHORTWAVE TROUGH TRANSLATING ACROSS SOUTH-
CENTRAL IDAHO WITH A BROKEN CLOUD SHIELD AND ISOLATED SHOWERS
EXTENDING INTO NORTHERN/ CENTRAL UTAH AND SOUTHWEST WYOMING. THIS
FEATURE WILL SLOWLY DEPART THE NORTHERN REGION THROUGH THE
AFTERNOON, HOWEVER, A LINGERING DIFFUSE NEAR SURFACE FRONTAL
BOUNDARY WILL HELP TO FOCUS CONTINUED ISOLATED SHOWERS THROUGH
THE REMAINDER OF THE MORNING HOURS, WITH COVERAGE BECOMING MORE
SCATTERED BY THE AFTERNOON. THIS FOCUS REGION FOR SHOWERS IS
GENERALLY EXPECTED TO EXTEND FROM ABOUT WESTERN JUAB COUNTY
NORTHEAST THROUGH UINTA COUNTY. ADDITIONAL STRONG AFTERNOON
HEATING PAIRED WITH LOWER LEVEL MOISTURE AND COOLER MID-LEVEL
TEMPERATURES WILL HELP A FEW OF THESE SHOWERS DEVELOP INTO
THUNDERSTORMS. WOULD ANTICIPATE LITTLE THREAT OF SEVERE WEATHER
MECHANISMS TO MAINTAIN/ BUILD STRONG STORMS WILL BE LACKING
TODAY.
TEMPERATURE-WISE, THE WEAK SURFACE COLD FRONT WILL HAVE MORE OF AN
INFLUENCE ACROSS THE NORTHERN AND WESTERN AREAS IN THE CWA THAN
THE SOUTHERN AND EASTERN AREAS. FOR THE NORTHERN AND WESTERN
AREAS, COOLING TEMPERATURES BY UPWARDS OF 5 DEGREES ARE EXPECTED
ALONG THE WASATCH FRONT AND CACHE VALLEY, WHEREAS THE CEDAR CITY,
ST. GEORGE, AND PRICE AREAS WILL ONLY SEE TEMPERATURES ABOUT 1-3
DEGREES COOLER. STILL... QUITE A PLEASANT DAY FOR TEMPERATURES
ACROSS THE REGION, WITH VIRTUALLY NO CHANCE FOR PRECIPITATION
SOUTH OF THE I-70 CORRIDOR.
TRANSIENT RIDGING BUILDS INTO THE REGION LATE TODAY, HELPING TO
SUBSIDE ANY LINGERING SHOWER ACTIVITY ACROSS THE NORTHERN AREA.
DEEP SOUTHERLY FLOW DEVELOPS AS THIS TRANSIENT SHORTWAVE RIDGE
BUILDS INTO THE AREA AND A DEEPER OFFSHORE LOW DEVELOPS, ADVECTING
A WARMER AIRMASS ACROSS THE FORECAST AREA... PARTICULARLY ACROSS
NORTHERN UTAH AND SOUTHWEST WYOMING. FOR SOUTHERN UTAH, VERY
MINIMAL (IF ANY) WARMING WILL BE EXPECTED WHILE NORTHERN UTAH/
SOUTHWEST WY WILL WARM BY 5-8 DEGREES AS COMPARED TO TODAY.
LINGERING MOISTURE WILL EXIST IN THE LOWER LEVELS, BRINGING
GENERALLY LOW PROBABILITY (25% CHANCE OR LESS) OF SHOWERS
DEVELOPING OVER THE HIGH TERRAIN. BOTTOM LINE... FRIDAY WILL BE
QUITE A PLEASANT DAY FOR THE VALLEYS, BUT IF YOU PLAN ON GOING OUT
INTO THE NORTHERN MOUNTAINS... DON'T BE SURPRISED IF YOU GET A
LITTLE DAMP.
LONG TERM (AFTER 12Z / 6AM SATURDAY)
AN UPPER LEVEL LOW WILL BE
APPROACHING THE PACIFIC COAST SATURDAY MORNING, WITH DEEP
SOUTHWESTERLY FLOW ACROSS THE BEEHIVE STATE. THIS UPPER LEVEL LOW WILL
SLOWLY SHIFT EASTWARD INTO THE GREAT BASIN THROUGH THE WEEKEND AND
GRADUALLY WEAKEN.
THE ASSOCIATED COLD POOL WILL FINALLY MOVE THROUGH THE STATE SUNDAY
INTO MONDAY BRINGING LOWER SNOW LEVELS AND TEMPERATURES AROUND 5
DEGREES BELOW CLIMATOLOGY BY MONDAY. SNOW LEVELS NEAR 7500 FEET OR
SO SUNDAY MORNING WILL FALL TO NEAR 6500-7000 FEET SUNDAY EVENING
INTO MONDAY. EXPECT LIGHT SNOW ACCUMULATIONS FOR THE NORTHERN AND
CENTRAL MOUNTAINS, WITH UP TO 6 INCHES OR SO FOR THE WASATCH AND
WESTERN UINTAS. THOSE WITH OUTDOOR PLANS SUNDAY INTO MONDAY ABOVE
7000 FEET SHOULD BE PREPARED FOR WINTER-LIKE CONDITIONS.
AT LEAST A SHORT PERIOD OF UPPER LEVEL RIDGING WILL MOVE ACROSS THE
GREAT BASIN TUESDAY, FOLLOWED BY ANOTHER WEAK UPPER LEVEL TROUGH
WEDNESDAY. THE OUTLOOK BEYOND THAT PERIOD IN THE DAY 8-10 RANGE
SHOWS AROUND 70% OF THE ENSEMBLE MEMBERS SUPPORTING DEVELOPMENT OF
AN UPPER LEVEL RIDGE ACROSS THE WEST, WHILE AROUND 30% OF THE
MEMBERS CONTINUE A PERIOD OF MEAN RIDGING ACROSS THE WEST.
AVIATION...KSLC
UNSETTLED WEATHER IS EXPECTED TO CONTINUE THROUGH
THE TAF PERIOD. ISOLATED HIGH-BASED SHOWERS AND THUNDERSTORMS MAY
IMPACT THE SLC TERMINAL BETWEEN 18-21Z, BRINGING GUSTY AND ERRATIC
WINDS.
REST OF UTAH AND SOUTHWEST WYOMING
UNSETTLED CONDITIONS WILL
CONTINUE FOR THE NORTHERN HALF OF UTAH AGAIN THIS AFTERNOON AND
EVENING. EXPECT ISOLATED TO WIDELY SCATTERED HIGH-BASED SHOWERS AND
THUNDERSTORMS TO IMPACT TERMINALS FROM ROUGHLY MANTI NORTHWARD FROM
16-02Z. GUSTY AND ERRATIC MICROBURST WINDS WILL BE POSSIBLE.
SLC WATCHES/WARNINGS/ADVISORIES
UT...NONE.
WY...NONE.
WEBBER / KRUSE
FOR MORE INFORMATION FROM NOAA'S NATIONAL WEATHER SERVICE VISIT...
HTTP://WEATHER.GOV/SALTLAKECITY
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