674
FXUS65 KSLC 120424
AFDSLC
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
1024 PM MDT SAT JUL 11 2026
KEY MESSAGES
- THE HEAT WAVE OVER THE AREA WILL PEAK ON SUNDAY, WITH MANY
DAILY, MONTHLY, AND ALL-TIME RECORDS BEING CHALLENGED,
PARTICULARLY OVER NORTHERN PORTIONS OF THE AREA.
- TEMPERATURES WILL GRADUALLY BECOME LESS HOT DURING THE UPCOMING
WEEK AS MONSOONAL MOISTURE MOVES INTO THE AREA. THIS WILL
INCREASE THE THREAT OF PRECIPITATION AND THUS FLASH FLOODING,
PARTICULARLY OVER SOUTHERN UTAH, FOR MUCH OF NEXT WEEK.
DISCUSSION
A STRONG RIDGE PARKED OVER UTAH AND SOUTHWEST
WYOMING IS BRINGING DRY AND VERY HOT CONDITIONS. MAXES AVERAGED UP
TO 10F ABOVE SEASONAL NORMALS, WHICH MEANS MOST VALLEYS GOT CLOSE
TO OR EXCEEDED 100F FOR THEIR HIGH TEMPERATURE TODAY. THOUGH THE
RIDGE WILL SHIFT EAST TOMORROW, SOME ADDITIONAL HOT AIR WILL
CONTINUE TO ADVECT IN, WITH GUIDANCE INDICATING 700 MB TEMPS IN
THE +20 TO +22C RANGE DURING THE AFTERNOON, AMONG THE HIGHEST
700MB TEMPERATURES THAT HAVE BEEN OBSERVED OVER THE AREA.
PREDICTABLY, THIS WILL LIKELY LEAD TO MANY DAILY RECORDS BEING
BROKEN, PARTICULARLY OVER NORTHERN PORTIONS OF THE AREA WHERE THE
AIRMASS IS MOST ABNORMALLY WARM. LOCATIONS LIKE LOGAN AND EVANSTON
HAVE A 60-75 PERCENT CHANCE OF EXCEEDING THEIR ALL-TIME RECORD
HIGH TEMPERATURES. THERE IS A LOWER CHANCE OF THIS HAPPENING IN
FARTHER SOUTH LOCATIONS LIKE SALT LAKE CITY AND PARK CITY, MORE
LIKE A 10-30 PERCENT CHANCE. STILL, TEMPERATURES THIS HIGH WILL
BRING AN INCREASED THREAT OF HEAT RELATED ILLNESS TO MOST VALLEY
AND MOUNTAIN VALLEY LOCATIONS ACROSS THE AREA, AND EXTREME HEAT
WARNINGS REMAIN IN EFFECT.
FOR MONDAY, THE EXTREME HEAT WARNINGS WILL CONTINUE FOR NORTHERN
PORTIONS OF THE AREA. MONSOONAL MOISTURE WILL START TO ADVECT
NORTHWARD SUNDAY EVENING, AND THIS INCREASE IN MOISTURE WILL
IMPACT TEMPERATURE MORE SIGNIFICANTLY OVER SOUTHERN UTAH. THOUGH
NORTHERN UTAH WILL BE A BIT LESS HOT, THE HEIGHTENED THREAT OF
HEAT RELATED ILLNESS REMAINS. THE RETURN OF MOISTURE WILL ALSO
BRING INCREASING COVERAGE OF SHOWERS AND THUNDERSTORMS THROUGH THE
FIRST PART OF THE WEEK. THIS IS MOSTLY GOOD NEWS FOR THE WILDFIRE
SITUATION ACROSS THE STATE, BUT WILL BRING AN INCREASED THREAT OF
FLASH FLOODING, PARTICULARLY TO SOUTHERN UTAH. THOUGH THE FLOW
WILL MOST LIKELY BECOME LIGHT FOR THE MIDDLE AND LATTER PART OF
THE WEEK, LIMITING THE ADVECTION OF ADDITIONAL MOISTURE, THE DEEP
MOISTURE ALREADY OVER THE AREA WILL REMAIN IN PLACE, WITH HIGH
CONFIDENCE IT WILL STAY IN PLACE FOR THE REMAINDER OF THE UPCOMING
WEEK.
AVIATION, ISSUED 552 PM MDT SAT JUL 11 2026
KSLC...VFR CONDITIONS PREVAIL OVER THE KSLC TERMINAL THROUGH THE
VALID TAF PERIOD ALONGSIDE LIGHT, DIURNALLY DRIVEN WINDS. CLEAR
SKIES WILL PERSIST THROUGH THE EVENING, WITH A FEW HIGH LEVEL CLOUDS
INCREASING OVERNIGHT. NORTHWESTERLY WINDS WILL TRANSITION BACK TO A
SOUTHEASTERLY WIND AFTER SUNDOWN, REMAINING IN PLACE THROUGH THE
OVERNIGHT HOURS.
REST OF UTAH AND SOUTHWEST WYOMING...VFR CONDITIONS WILL PREVAIL
THROUGH THE TAF PERIOD AREAWIDE. AREAS OF HIGH-BASED SHOWERS FORMING
ALONG THE HIGHEST TERRAIN IN SOUTHERN, CENTRAL, AND NORTHEASTERN
UTAH WILL DISSIPATE AFTER SUNDOWN, LEADING TO LARGELY CLEAR SKIES
OVERNIGHT. WINDS WILL REMAIN TERRAIN DRIVEN AT ALL TERMINALS
THROUGH THE EVENING AND OVERNIGHT HOURS.
FIRE WEATHER
HIGH PRESSURE CENTERED OVER UTAH WILL BRING DRY
AND VERY HOT CONDITIONS THROUGH SUNDAY, WITH THE RECORD WARMTH
LINGERING OVER NORTHERN UTAH FOR MONDAY. BY SUNDAY NIGHT,
MONSOONAL MOISTURE WILL START TO ADVECT NORTHWARD INTO SOUTHERN
UTAH, WITH THE FLOW OF MOISTURE CONTINUING THROUGH THE MIDDLE OF
THE WEEK. THIS WILL BRING LESS HOT TEMPERATURES, INCREASING
RELATIVE HUMIDITY VALUES, BETTER OVERNIGHT RECOVERIES, AND AN
INCREASING CHANCE OF WETTING RAINS. THIS WILL, HOWEVER, BRING A
HEIGHTENED THREAT OF FLASH FLOODING FOR MUCH OF THE REMAINDER OF
THE WEEK, PARTICULARLY OVER SOUTHERN UTAH.
SLC WATCHES/WARNINGS/ADVISORIES
UT...EXTREME HEAT WARNING UNTIL 6 AM MDT TUESDAY FOR UTZ101>108-114-
116-118>121.
EXTREME HEAT WARNING UNTIL 6 AM MDT MONDAY FOR UTZ115-122-
128>131.
WY...EXTREME HEAT WARNING UNTIL 9 PM MDT MONDAY FOR WYZ021.
PUBLIC...TRAPHAGAN
AVIATION...WEBBER
FIRE WEATHER...TRAPHAGAN
FOR MORE INFORMATION FROM NOAA'S NATIONAL WEATHER SERVICE VISIT...
HTTP://WEATHER.GOV/SALTLAKECITY
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page