816
FXUS65 KSLC 071746
AFDSLC
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
1145 AM MDT FRI AUG 7 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 1050 PM MDT THU AUG 6 2026
FORECAST REMAINS ON TRACK FOR AN AREA OF HIGH
PRESSURE TO BUILD EASTWARD INTO THE REGION OVER THE NEXT FEW DAYS,
BRINGING INCREASING HEAT AREAWIDE WITH AN INFLUX OF MOISTURE TO
FOLLOW. ACROSS UTAH AND SOUTHWEST WYOMING, THE INCREASING
TEMPERATURE TREND IS EXPECTED TO PEAK ON FRIDAY/ SATURDAY, WITH
TEMPERATURES SLOWLY DECREASING THROUGH THE WEEKEND AND INTO EARLY
NEXT WEEK. ALONG THE WASATCH FRONT AND REMAINDER OF THE I-15
CORRIDOR THROUGH CEDAR CITY, HIGH TEMPERATURES WILL BE BACK INTO
THE UPPER-90S (CEDAR CITY AREA) AND THE LOW-100S IN THE SALT LAKE
CITY, OGDEN, AND PROVO AREA. BY NOON ON FRIDAY, A SERIES OF HEAT
ADVISORIES AND EXTREME HEAT WARNINGS WILL GO INTO EFFECT ACROSS
NORTHERN UTAH, WITH EXISTING WARNINGS AND ADVISORIES IN SOUTHERN
UTAH REMAINING IN EFFECT.
MID-LEVEL MOISTURE WILL REMAIN IN PLACE ACROSS THE SOUTHERN HALF
OF UTAH, AS WAS THE CASE TODAY. AS WAS EVIDENT WITH TODAY, HIGH-
BASED SHOWERS AND THUNDERSTORMS WILL BRING POTENTIAL FOR STRONG
OUTFLOW WINDS IN EXCESS OF 40-45 MPH. WITH MID-LEVEL MOISTURE
SPREADING A SKOSH FARTHER NORTHWARD, WOULD ANTICIPATE COVERAGE OF
THESE SHOWERS TO EXTEND INTO MILLARD COUNTY FRIDAY AFTERNOON.
THOUGH A MAJORITY OF THESE SHOWERS AND THUNDERSTORMS WILL BE
LARGELY DRY, LITTLE STEERING FLOW IN THE LOWER TO MIDDLE PORTIONS
OF THE ATMOSPHERE WILL ALLOW FOR SLOW MOVING STORMS, THUS BRINGING
POTENTIAL FOR ISOLATED HEAVY RAINFALL IN NEAR-STATIONARY STORMS.
WHILE THE THREAT OF FLASH FLOODING IN THE TYPICAL AREAS IS QUITE
LOW, IT IS NOT ZERO.
THE LOWER LEVELS OF THE ATMOSPHERE WILL REMAIN FAIRLY DRY THROUGH
THE WEEKEND UNTIL THE CENTER OF THE HIGH PRESSURE POSITIONS ITSELF
OVER THE FOUR CORNERS REGION, WHICH WILL HELP TO ADVECT AN INFLUX
OF LOWER LEVEL MOISTURE INTO THE FORECAST AREA. GIVEN THE CURRENT
MODEL GUIDANCE, WOULD ANTICIPATE THIS TO OCCUR AROUND THE MID-WEEK
TIMEFRAME (WEDNESDAY/ THURSDAY), WITH HIGH-BASED LARGELY DRY
SHOWERS AND THUNDERSTORMS EACH AFTERNOON UNTIL THEN. THIS PATTERN
LOOKS TO REMAIN SOLIDLY IN PLACE THEREAFTER.
AVIATION
KSLC...WINDS WILL BE LIGHT AND VARIABLE OVER THE NEXT HOUR OR SO,
BECOMING STRONGER OUT OF THE NORTHWEST BETWEEN 1830-1900Z. A
TRANSITION BACK TO SOUTHEASTERLY DRAINAGE WINDS IS EXPECTED AROUND
03-04Z, HOWEVER WINDS MAY ALSO BE LIGHT AND VARIABLE DURING THE
OVERNIGHT HOURS. VFR CONDITIONS WILL PREVAIL MOST OF THE TIME,
THOUGH WILDFIRE SMOKE MAY CAUSE SLANTWISE VIS REDUCTIONS BRIEFLY
INTO MVFR, PARTICULARLY AROUND SUNRISE/SUNSET.
REST OF UTAH AND SOUTHWEST WYOMING...SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS WILL DEVELOP AFTER 18-19Z ACROSS PRIMARILY
SOUTHWESTERN UTAH SOUTH OF KDTA AND WEST OF KBCE, THOUGH SOME STORMS
MAY REACH NORTHWARD INTO UTAH COUNTY, POTENTIALLY IMPACTING KPVU
THIS AFTERNOON. STORMS WILL BE CAPABLE OF PRODUCING GUSTY OUTFLOW
WINDS UP TO 40KTS (UP TO 30-35KTS FURTHER NORTH). OTHERWISE, WINDS
WILL FOLLOW TYPICAL DIURNAL TRENDS. VFR CONDITIONS WILL LARGELY
PREVAIL, HOWEVER WILDFIRE SMOKE MAY CAUSE SLANTWISE VIS REDUCTIONS
BRIEFLY INTO MVFR (OR LOWER VERY CLOSE TO LOCAL WILDFIRES).
FIRE WEATHER, ISSUED 1040 AM MDT FRI AUG 7 2026
WIDELY SCATTERED THUNDERSTORMS WILL DEVELOP ACROSS
SOUTHWESTERN UTAH THIS AFTERNOON AND EVENING. GIVEN VERY DRY AND
VERY HOT ANTECEDENT CONDITIONS, ISSUED A RED FLAG WARNING FOR ZONES
495 AND 496 FOR THIS AFTERNOON AND EVENING. CONVECTIVE COVERAGE
WILL TREND LOWER FOR SATURDAY...BEFORE INCREASING ONCE AGAIN ON
SUNDAY ACROSS MUCH OF THE HIGHER TERRAIN OF UTAH. THIS TREND WILL
CONTINUE INTO THE NEXT WORKWEEK.
SLC WATCHES/WARNINGS/ADVISORIES
UT...EXTREME HEAT WARNING UNTIL MIDNIGHT MDT SUNDAY NIGHT FOR UTZ101-
102-104-105-115-120-121.
HEAT ADVISORY UNTIL MIDNIGHT MDT SUNDAY NIGHT FOR UTZ103-106-107-
114-116.
HEAT ADVISORY UNTIL 9 PM MDT SATURDAY FOR UTZ118-119-122-126-127.
RED FLAG WARNING UNTIL 9 PM MDT THIS EVENING FOR UTZ495-496.
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...WEBBER
AVIATION...CUNNINGHAM
FIRE WEATHER...KRUSE
FOR MORE INFORMATION FROM NOAA'S NATIONAL WEATHER SERVICE VISIT...
HTTP://WEATHER.GOV/SALTLAKECITY
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