954
FXUS65 KSLC 101009
AFDSLC
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
309 AM MST SAT JAN 10 2026
KEY MESSAGES
- A VALLEY INVERSION EVENT WILL GET GOING THROUGH THE WEEKEND.
HAZE AND REDUCED AIR QUALITY WILL BE COMMON FOR NORTHERN
VALLEYS, WITH THOSE CONDITIONS LASTING MUCH OR ALL OF NEXT WEEK.
VALLEY INVERSIONS WILL ENHANCE THE RISK FOR FOG AND FREEZING
FOG.
DISCUSSION
SOUTHWEST WYOMING AND UTAH WILL BE UPSTREAM OF HIGH
PRESSURE OVER THE WESTERN U.S. MUCH OF NEXT WEEK. AS THAT RIDGE
HAS TRACKED INLAND, WARMER CONDITIONS AND A SUBSIDENCE INVERSION
HAS CAPPED REMNANT MOISTURE WITH THE RECENT STORM SYSTEM. THAT HAS
COME WITH BROKEN TO OVERCAST STRATUS CLOUDS FOR THE URBAN
CORRIDOR OF NORTHERN UTAH. THE MOISTURE WILL DIMINISH, BUT
RIDGING WILL CONTINUE. A LACK OF SUFFICIENT MIXING WILL ALLOW
VALLEY INVERSIONS TO ESTABLISH THROUGH THE WEEKEND. INCREASING
VALLEY HAZE WILL ALSO COME WITH GREATER CHANCES FOR NORTHERN
VALLEY FOG AND FREEZING FOG, ESPECIALLY FOR PLACES WITH SNOW.
THE UPCOMING WEEK WILL BE INFLUENCED LARGELY BY THE RIDGE TO THE
WEST. MODELS AND ENSEMBLES ARE IN GOOD AGREEMENT ON SEVERAL STORM
SYSTEMS THAT WILL TRACK ALONG THE EASTERN ROCKIES. THESE WILL
BRING INCREASED NORTHERLY FLOW TUESDAY AND AGAIN THURSDAY AND
FRIDAY. IT IS UNCERTAIN IF THERE WILL BE ENOUGH MIXING TO CLEAR OR
ELIMINATE INVERSIONS. ENSEMBLES DO HAVE A SLIGHTLY MORE WESTWARD
TRACK FOR THE THURSDAY AND FRIDAY TROUGH, WHICH WOULD BRING MORE
ENHANCED NORTHERLY FLOW AND BETTER COLD AIR ADVECTION THAN THE
PRIOR ONE. THAT SYSTEM WILL BE MORE LIKELY TO ELIMINATE OR AT
LEAST WEAKEN VALLEY INVERSIONS.
AVIATION...KSLC
A BKN-OVC CLOUD DECK AROUND 4500FT AGL WILL START
TO DISSIPATE AFTER ~14Z OR SO, LIKELY CLEARING UP BY 17Z AT THE
LATEST. OTHERWISE, EXPECT VFR CONDITIONS WITH LIGHT, SOUTHEASTERLY
FLOW TRANSITIONING TO NORTHWESTERLY AROUND 18-19Z.
REST OF UTAH AND SOUTHWEST WYOMING
A LOW-LEVEL CLOUD DECK OVER
AREAS BETWEEN KTVY-KPVU-KFBR-KBMC WILL START TO DISSIPATE AFTER
AROUND 13Z, LIKELY DISSIPATING BY ~17Z IN MOST AREAS. WHILE CIGS AT
MOST SITES ARE STILL VFR, KEVW AND KHCR HAVE DIPPED INTO HIGH-END
MVFR. WINDS WILL REMAIN LIGHT AND TERRAIN-DRIVEN DURING THE VALID
TAF PERIOD (AND LIKELY BEYOND).
SLC WATCHES/WARNINGS/ADVISORIES
UT...NONE.
WY...NONE.
PUBLIC...WILSON
AVIATION...CUNNINGHAM
FOR MORE INFORMATION FROM NOAA'S NATIONAL WEATHER SERVICE VISIT...
HTTP://WEATHER.GOV/SALTLAKECITY
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page