638
FXUS65 KSLC 121022
AFDSLC
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
322 AM MST WED NOV 12 2025
SYNOPSIS
HIGH PRESSURE WILL KEEP CONDITIONS DRY AND MILD TODAY.
SOUTHERLY WINDS WILL SLOWLY INCREASE THROUGH FRIDAY AHEAD OF A
PACIFIC STORM SYSTEM THAT WILL IMPACT THE AREA OVER THE WEEKEND.
ANOTHER SYSTEM IS EXPECTED TO FOLLOW FOR EARLY NEXT WEEK.
DISCUSSION
HIGH PRESSURE IS CENTERED OVER UTAH AND SOUTHWEST
WYOMING THIS MORNING, WITH SOME HIGH CLOUDS STREAMING IN DUE TO
SOME WEAK SHORTWAVE ENERGY ROTATING THROUGH THE RIDGE.
TEMPERATURES WILL STAY MILD TODAY WITH MAXES RUNNING UP TO 10F
ABOVE SEASONAL NORMALS.
AS A PACIFIC STORM SYSTEM MOVES TOWARD THE CALIFORNIA COAST, THE
RIDGE AXIS OVER THE AREA WILL SHIFT EAST, MOVING INTO COLORADO BY
LATE AFTERNOON. THIS WILL BRING SOUTHWEST FLOW OVER THE AREA,
WHICH WILL INCREASE TOMORROW INTO FRIDAY AS THE SYSTEM SLOWLY
MAKES ITS WAY TO THE PACIFIC COAST. THOUGH WINDS WILL BE BREEZY,
THIS NO LONGER LOOKS LIKE A STRONG WIND EVENT.
SEEING A SHIFT IN THE GUIDANCE TO A MUCH SLOWER TRACK FOR THE
WEEKEND STORM SYSTEM, AS ALL ENSEMBLE MEMBERS NOW KEEP THE SYSTEM
OFFSHORE ON FRIDAY, WITH IT MOVING ONTO THE SOUTHERN CALIFORNIA
COAST AS A CLOSED LOW ON SATURDAY AND MEANDER EAST TO NORTHEAST ON
SUNDAY, WHICH NOW LOOKS TO BE THE DAY WITH THE HIGHEST PROBABILITY
OF PRECIPITATION. AT THIS POINT, CONFIDENCE DECREASES IN THE
DETAILS SIGNIFICANTLY, WITH SOME GUIDANCE KEEPING THE SYSTEM
PRIMARILY SOUTH OF THE AREA, BUT A LARGE PORTION MOVING IT INTO
UTAH. HOWEVER, THERE IS THE QUESTION OF WHETHER OR NOT THE STORM
WILL SPLIT, AND WHERE THIS WILL HAPPEN IF IT DOES. THE ENSEMBLES,
AS ONE WOULD EXPECT, HAVE A WIDE RANGE OF OPINIONS ON THIS, WHICH
WILL IMPACT THE STRENGTH OF THE SYSTEM AS IT MOVES ACROSS UTAH AND
SOUTHWEST WYOMING. OVERALL, THOUGH, CONFIDENCE IS HIGH ON AT LEAST
SOME IMPACTS FROM THE STORM OVER THE WEEKEND AND THAT GIVEN ITS
PACIFIC ORIGIN, THE STORM SYSTEM WILL BE RELATIVELY WARM IN
NATURE, KEEPING SNOW LEVELS ON THE HIGH SIDE.
BEHIND THAT SYSTEM, ANOTHER PACIFIC SYSTEM LOOKS TO FOLLOW QUICKLY
ON ITS HEELS, BUT THE ENSEMBLE SPREAD ON THE DETAILS IS EVEN HIGH
THAN WITH THE WEEKEND SYSTEM.
AVIATION...KSLC
VFR CONDITIONS PREVAIL AT THE KSLC TERMINAL
TODAY. A PERSISTENT DECK OF HIGH CLOUDS IS EXPECTED TODAY, WITH
INCREASING MID-LEVEL CLOUD COVER THIS AFTERNOON AND EVENING. WINDS
REMAIN GENERALLY LIGHT AGAIN TODAY, WITH SOUTHEASTERLY WINDS THIS
MORNING TRANSITIONING TO THE NORTHWEST AROUND ROUGHLY 19Z.
REST OF UTAH AND SOUTHWEST WYOMING
VFR CONDITIONS PERSIST FOR ALL
REGIONAL TERMINALS THROUGH THE TAF PERIOD. HIGH CLOUDS CONTINUE TO
INCREASE ACROSS THE AIRSPACE TODAY, WITH MID-LEVEL CLOUD COVER
INCREASING THIS AFTERNOON AND EVENING. WINDS REMAIN GENERALLY LIGHT
AND TERRAIN DRIVEN FOR MOST LOCATIONS, EXCEPT SOUTHWEST UTAH
TERMINALS WHERE BREEZY SOUTHWESTERLY WINDS ARE EXPECTED TO DEVELOP
THIS AFTERNOON.
SLC WATCHES/WARNINGS/ADVISORIES
UT...NONE.
WY...NONE.
PUBLIC...TRAPHAGAN
AVIATION...WHITLAM
FOR MORE INFORMATION FROM NOAA'S NATIONAL WEATHER SERVICE VISIT...
HTTP://WEATHER.GOV/SALTLAKECITY
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page