606  
FXUS65 KSLC 072050  
AFDSLC  
 
AREA FORECAST DISCUSSION  
NATIONAL WEATHER SERVICE SALT LAKE CITY UT  
250 PM MDT MON JUL 7 2025  
   
SYNOPSIS  
HIGH PRESSURE CONTINUES TO BUILD OVER THE SOUTHWEST  
THROUGH MIDWEEK. DRY CONDITIONS AND INCREASINGLY HOT TEMPERATURES  
WILL DEVELOP BY MIDWEEK. HOT, DRY, AND WINDY CONDITIONS MAY YIELD  
SOME FIRE WEATHER DANGER WEDNESDAY ACROSS PORTIONS OF CENTRAL AND  
SOUTHERN UTAH. ON THURSDAY, A WEAKENING TROUGH WILL CLIP THE AREA  
BRINGING TEMPERATURES BACK TO NEAR NORMAL THROUGH FRIDAY, THOUGH  
UNSEASONABLY HOT TEMPERATURES WILL RETURN BY THE WEEKEND.  
 
 
   
SHORT TERM (THROUGH 12Z/6AM WEDNESDAY)  
CURRENTLY, SKIES REMAIN  
MOSTLY CLEAR ACROSS THE MAJORITY OF THE CWA WITH THE EXCEPTION OF  
OROGRAPHIC LIFT OCCURRING OVER OUR TYPICAL MOUNTAIN SPOTS. AN  
ISOLATED SHOWER OR TWO IS POSSIBLE ACROSS OUR CENTRAL AND SOUTHERN  
HIGH TERRAIN AS WELL AS THE UINTAS THIS AFTERNOON, THOUGH RIDGING  
ALOFT RESULTING IN STRONG SUBSIDENCE WITH DRY AIR PUSHING INTO  
THE AREA SHOULD GREATLY LIMIT COVERAGE THIS AFTERNOON WITH POPS  
LIMITED TO 10%.  
 
RIDGING WILL CONTINUE TO BUILD TOMORROW AND WITH THE INCREASE IN  
HEIGHTS, WE ARE EXPECTED TO SEE ANOTHER DAY WITH TEMPERATURES 5-10  
DEGREES ABOVE NORMAL ACROSS THE MAJORITY OF THE FORECAST AREA. LOWER  
ELEVATIONS WILL SEE TEMPERATURES MAKE A RUN FOR THE TRIPLE DIGITS,  
INCLUDING THE MAJORITY OF THE WASATCH FRONT. ADDITIONALLY, LOWER  
WASHINGTON COUNTY WILL SEE TEMPERATURES BREAK INTO THE MID 100S,  
PERHAPS MAKING A RUN AT 110 NEAR ST. GEORGE. CONDITIONS ARE EXPECTED  
TO REMAIN QUITE DRY ONCE AGAIN AS STRONGER SUBSIDENCE TAKES HOLD  
WHICH SHOULD SERVE TO LIMIT EVEN OROGRAPHICALLY FORCED SHOWERS OTHER  
THAN LIGHT CUMULUS FORMING ALONG RIDGES. BE SURE TO DRINK PLENTY OF  
WATER AND DRESS ACCORDINGLY IF OUTSIDE TOMORROW!  
   
LONG TERM (AFTER 12Z/6AM WEDNESDAY), ISSUED 325 AM MDT  
 
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  
WEATHER REMAINS QUIET WITH VFR CONDITIONS  
PREVAILING, AND A FEW DAYTIME CUMULUS DEVELOPING AROUND 10 KFT. WIND  
MAGNITUDES GENERALLY REMAIN LESS THAN 15 KTS, FOLLOWING A TYPICAL  
DIURNAL PATTERN WITH NW WINDS BECOMING SSE BETWEEN ~03-05Z TUE, AND  
BACK NW ~18-20Z THEREAFTER.  
   
REST OF UTAH AND SOUTHWEST WYOMING  
TAF PERIOD ONCE AGAIN EXPECTED  
TO REMAIN VFR, WITH SOME SCT CUMULUS DEVELOPING OFF AREA TERRAIN  
ALONG WITH AN ISOLATED SHOWER OR TWO. AREA TERMINALS WILL ALSO SEE A  
WARMING TREND CONTINUE. WIND DIRECTIONS EXPECTED TO FOLLOW A TYPICAL  
DIURNAL CYCLE, WITH LIGHT MAGNITUDES GENERALLY LESS THAN 15 KTS, AND  
A FEW GUSTS TO AROUND 20-25 KTS AT MORE EXPOSED OR TYPICALLY GUSTY  
TERMINALS.  
 
 
   
FIRE WEATHER  
HIGH PRESSURE EXTENDING FROM THE DESERT SOUTHWEST INTO  
THE FOUR CORNERS REGION WILL RESULT IN A CONTINUATION OF HOT AND  
DRY CONDITIONS ACROSS UTAH. DESPITE THE STRONG RIDGE, JUST ENOUGH  
MOISTURE REMAINS PRESENT FOR THE DEVELOPMENT OF ONE OR TWO WIDELY  
ISOLATED SHOWERS OFF OF THE HIGH TERRAIN DURING THE DAYTIME. SOME  
GUSTY ERRATIC OUTFLOW WINDS WOULD BE POSSIBLE IN THE VICINITY OF  
ANY ACTIVITY THAT DOES FORM. ASIDE FROM THE HIGH PRESSURE, AN AREA  
OF LOW PRESSURE REMAINS SEMI-STATIONARY OFF THE CALIFORNIA COAST  
MONDAY AND TUESDAY, RESULTING IN MODEST ENHANCEMENT TO  
SOUTHWESTERLY FLOW ATOP THE REGION, AND IN TURN SOME GUSTS IN THE  
15-30 MPH RANGE. AS SUCH, WILL SEE SOME LOCALLY ELEVATED TO  
CRITICAL FIRE WEATHER CONDITIONS FOR BRIEF PERIODS WHEN THE WIND  
PICKS UP.  
 
THE AREA OF LOW PRESSURE EVENTUALLY STARTS TO COME ASHORE,  
PUSHING THROUGH THE GREAT BASIN WEDNESDAY. AHEAD OF AN ASSOCIATED  
FRONTAL BOUNDARY, THIS WILL RESULT IN THE ENHANCEMENT OF LOW LEVEL  
WINDS THROUGH THE DAY. THIS WILL YIELD AFTERNOON SOUTHWESTERLY  
WIND GUSTS PUSHING MORE INTO THE 25-35 MPH, WHICH IN COMBINATION  
WITH THE ALREADY VERY LOW RELATIVE HUMIDITY VALUES WILL RESULT IN  
AN EXPANSION OF CRITICAL FIRE WEATHER CONDITIONS. AS SUCH, HAVE  
ISSUED A FIRE WEATHER WATCH FROM WESTERN TO CENTRAL TO SOUTHERN  
UTAH. ASIDE FROM THE GUSTY CONDITIONS, FORECAST MODELS CONTINUE TO  
SUGGEST SOME ISOLATED TO SCATTERED HIGH BASED CONVECTION MAY  
DEVELOP OFF THE HIGH TERRAIN DURING THE DAY, SUBSEQUENTLY DRIFTING  
EAST. GUSTY ERRATIC OUTFLOW WINDS WOULD BE THE PRIMARY THREAT  
WITH ANYTHING THAT DOES DEVELOP. THE FRONT IS THEN EXPECTED TO  
PASS LATE WEDNESDAY EVENING OVERNIGHT INTO EARLY THURSDAY. A FEW  
SHOWERS MAY ACCOMPANY THE FRONT, BUT THE PASSAGE IS LARGELY  
EXPECTED TO BE DRY, MORE MARKED BY A WIND SHIFT MORE WEST TO  
NORTHWESTERLY. WINDS WILL RELAX SOME THEREAFTER, WITH SLIGHTLY  
COOLER TEMPERATURES EXPECTED ACROSS CENTRAL AND NORTHERN UTAH  
THURSDAY AND FRIDAY. CONDITIONS ONCE AGAIN WARM THEREAFTER INTO  
THE WEEKEND.  
 
 
   
SLC WATCHES/WARNINGS/ADVISORIES  
 
UT...FIRE WEATHER WATCH FROM WEDNESDAY AFTERNOON THROUGH WEDNESDAY  
EVENING FOR UTZ492-493-495>498.  
 
WY...NONE.  
 
 
 
 
SHORT TERM...WORSTER  
LONG TERM...MAHAN  
AVIATION...WARTHEN  
FIRE WEATHER...WARTHEN  
 
FOR MORE INFORMATION FROM NOAA'S NATIONAL WEATHER SERVICE VISIT...  
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