472
FXUS65 KSLC 062332
AFDSLC
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
532 PM MDT THU AUG 6 2026
KEY MESSAGES, ISSUED 249 PM MDT THU AUG 6 2026
- DANGEROUS HEAT WILL IMPACT MUCH OF THE STATE THROUGH SATURDAY
ACROSS SOUTHERN UTAH, SUNDAY THE REMAINDER OF THE UTAH. THOSE
WITHOUT ACCESS TO COOLING OR PROPER HYDRATION WILL BE MOST AT
RISK FOR HEAT- RELATED ILLNESS. WITH TEMPERATURES REMAINING
ELEVATED OVERNIGHT, THERE WILL BE LITTLE RECOVERY. HEAT STRESS
IS CUMULATIVE.
- CRITICAL FIRE WEATHER CONDITIONS WILL DEVELOP ACROSS SOUTHERN
UTAH SATURDAY AS WIDELY SCATTERED THUNDERSTORMS DEVELOP AFTER A
LONG DURATION PERIOD OF VERY DRY, VERY HOT CONDITIONS. THIS WILL
SPREAD NORTH AND EAST ACROSS MUCH OF THE REMAINDER OF SOUTHERN
UTAH SUNDAY.
- A MARGINAL RISK OF EXCESSIVE RAINFALL HAS BEEN OUTLOOKED ACROSS
SOUTHERN UTAH SATURDAY, SHIFTING NORTH AND EAST SUNDAY.
DISCUSSION, ISSUED 249 PM MDT THU AUG 6 2026
HIGH PRESSURE WILL GRADUALLY SHIFT EAST OVER THE
NEXT SEVERAL DAYS...ALLOWING FOR AN INFLUX OF MOISTURE AROUND THE
WEST SIDE OF THE RIDGE. WHILE INITIALLY, THUNDERSTORMS MAY BE
SOMEWHAT HIGH-BASED, A QUICK PROGRESSION TO HEAVY RAINFALL IS
EXPECTED SATURDAY. THIS MAY ALSO BRING AN INCREASED RISK OF FLASH
FLOODING, WITH WPC OUTLOOKING PORTIONS OF SOUTHERN UTAH IN A
MARGINAL RISK FOR EXCESSIVE RAINFALL AS EARLY AS SATURDAY,
SHIFTING TO MUCH OF THE STATE SUNDAY.
THERE ISN'T MUCH INDICATION THIS PATTERN WILL BREAK DOWN IN THE
NEXT 7-10 DAYS. THE STRONGEST THUNDERSTORMS AND HEAVIEST RAIN WILL
LIKELY BE TIED TO SUBTLE SHORTWAVE TROUGHS OR MCVS EMBEDDED IN
THE FLOW. SOMETHING THAT WILL NEED TO BE MONITORED MOVING FORWARD.
THROUGH SATURDAY ACROSS SOUTHERN UTAH AND SUNDAY ACROSS THE
REMAINDER OF UTAH, EXTREME HEAT WARNINGS AND HEAT ADVISORIES
REMAIN IN EFFECT. NO CHANGES WERE MADE TO THESE PRODUCTS WITH THIS
PACKAGE. A REMINDER, WITH LOW TEMPERATURES REMAINING ELEVATED,
THERE WILL BE LITTLE RECOVERY FOR THOSE WITHOUT ADEQUATE COOLING
OR HYDRATION. HEAT STRESS IS CUMULATIVE AND THE THREAT OF HEAT-
RELATED ILLNESS WILL INCREASE WITH TIME.
FIRE WEATHER WATCHES MAY BE NEEDED FOR THE INCREASING THREAT OF
CONVECTION BY SATURDAY. SEE THE FIRE WEATHER DISCUSSION FOR MORE
DETAILS.
AVIATION
KSLC...A SLIGHT INCREASE IN MID LEVEL MOISTURE AND CLOUDS EXPECTED
FRIDAY AS HIGH PRESSURE SHIFTS, BUT PRECIPITATION CHANCES REMAIN
MINIMAL (LESS THAN 10%). OUTSIDE A SIMILAR CHANCE OF OUTFLOW GUSTS,
WINDS EXPECTED TO REMAIN LIGHT (GENERALLY LESS THAN 10 KTS) WITH
DIRECTION SHIFTS AT TYPICAL DIURNAL TIMES. VFR CONDITIONS
ANTICIPATED TO PREVAIL, WITH POTENTIAL FOR BRIEF MODEST VIS
REDUCTIONS NEAR SUNSET AND SUNRISE DUE TO SUN ANGLE COMBINED WITH
SMOKE.
REST OF UTAH AND SOUTHWEST WYOMING...HIGH PRESSURE WILL BEGIN TO
START SHIFTING SOUTHEAST, ALLOWING A SLIGHT INCREASE IN MOISTURE. AT
NORTHERN TERMINALS THIS WILL LARGELY BE MIDLEVEL, BRINGING AN
INCREASE IN CLOUD COVER ACCORDINGLY. PRECIPITATION AND OUTFLOW
CHANCES REMAIN LOW (10% OR LESS), WITH WINDS OTHERWISE EXPECTED TO
FOLLOW A TYPICAL DIURNAL PATTERN. VFR CONDITIONS ANTICIPATED TO
PREVAIL, WITH POTENTIAL FOR BRIEF PERIODS OF SLIGHT VIS REDUCTIONS
NEAR SUNRISE AND SUNSET DUE TO SMOKE AND SUN ANGLE. AT SOUTHERN
TERMINALS WHERE A BIT MOISTURE IS NOTED, MORE CLOUD COVER WILL BUILD
IN. MANY SOUTHERN TERMINALS WILL SEE AROUND A 10-30% CHANCE OF
AFTERNOON SHOWERS AND THUNDERSTORMS, ALONG WITH GUSTY ERRATIC
OUTFLOW WIND GUSTS. WINDS OTHERWISE WILL FAVOR A DIURNALLY NORMAL
DIRECTION PATTERN.
FIRE WEATHER, ISSUED 249 PM MDT THU AUG 6 2026
HIGH PRESSURE WILL GRADUALLY SHIFT EASTWARD,
DRAWING MID-LEVEL MOISTURE INTO UTAH LATER FRIDAY INTO SATURDAY.
BY SATURDAY AFTERNOON, WIDELY SCATTERED THUNDERSTORMS WILL IMPACT
SOUTHWESTERN UTAH. THIS WILL COMBINE WITH A LONG DURATION OF VERY
HOT, VERY DRY CONDITIONS TO BRING THE THREAT OF CRITICAL FIRE
WEATHER CONDITIONS. AS MOISTURE DRAWS FURTHER NORTH AND EAST, MOST
OF SOUTHERN UTAH WILL SEE A RISK OF WIDELY SCATTERED
THUNDERSTORMS BRINGING THE POTENTIAL CRITICAL FIRE WEATHER
CONDITIONS TO MUCH OF SOUTHERN UTAH SUNDAY.
BY MONDAY, HUMIDITIES WILL CONTINUE TO INCREASE, ESPECIALLY
ACROSS THE HIGHER TERRAIN. THIS MONSOON SURGE WILL CONTINUE
THROUGH AT LEAST MIDWEEK.
SLC WATCHES/WARNINGS/ADVISORIES
UT...EXTREME HEAT WARNING FROM NOON FRIDAY TO MIDNIGHT MDT SUNDAY
NIGHT FOR UTZ101-102-104-105-115-120-121.
HEAT ADVISORY FROM NOON FRIDAY TO MIDNIGHT MDT SUNDAY NIGHT FOR
UTZ103-106-107-114-116.
HEAT ADVISORY UNTIL 9 PM MDT SATURDAY FOR UTZ118-119-122-126-127.
EXTREME HEAT WARNING UNTIL 9 PM MDT SATURDAY FOR UTZ123-124-
128>131.
WY...RED FLAG WARNING UNTIL 9 PM MDT THIS EVENING FOR WYZ277.
PUBLIC...
AVIATION...WARTHEN
FIRE WEATHER...
FOR MORE INFORMATION FROM NOAA'S NATIONAL WEATHER SERVICE VISIT...
HTTP://WEATHER.GOV/SALTLAKECITY
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page