559
FXUS65 KSLC 101843
AFDSLC
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
1243 PM MDT MON AUG 10 2026
KEY MESSAGES, ISSUED 1044 PM MDT SUN AUG 9 2026
- A MARGINAL RISK OF EXCESSIVE RAINFALL WILL CONTINUE ACROSS MUCH
OF UTAH THROUGH THE NEXT FIVE DAYS. EXPECT AN INCREASED THREAT
OF FLASH FLOODING, PRIMARILY ACROSS SLOT CANYONS, NORMALLY DRY
WASHES, SLICK ROCK AREAS, AND RECENT BURN SCARS.
DISCUSSION, ISSUED 1044 PM MDT SUN AUG 9 2026
HIGH PRESSURE WILL REMAIN IN A FAVORABLE LOCATION TO
CONTINUE THE ONGOING MONSOON SURGE THROUGH AT LEAST THE NEXT SEVEN
DAYS ACROSS THE BEEHIVE STATE. FIRST THOUGH, ALL REMAINING HEAT
HEADLINES WERE ALLOWED TO EXPIRE EARLIER THIS EVENING.
ANOTHER ROUND OF SHOWERS AND THUNDERSTORMS WITH THE THREAT OF
HEAVY RAINFALL WILL DEVELOP MONDAY AFTERNOON ACROSS MUCH OF THE
REGION. AGAIN, LIKE PREVIOUS DAYS, THE MOST FLOOD PRONE LOCATIONS
WILL CONTINUE TO BE SLOT CANYONS, NORMALLY DRY WASHES, SLICK ROCK
AREAS AS WELL AS RECENT BURN SCARS.
LOOKING AHEAD, THE WEATHER PREDICTION CENTER HAS UTAH OUTLOOKED IN
A MARGINAL RISK FOR FLASH FLOODING THROUGH THE NEXT 5 DAYS...AND
GUIDANCE SUGGESTS THIS MONSOON SURGE SHOULD CONTINUE INTO AT
LEAST NEXT WEEKEND IF NOT EARLY NEXT WEEK.
AVIATION
KSLC...SOUTHERLY WINDS SHIFT OUT OF THE NORTHWEST AFTER 19Z,
REMAINING GENERALLY BREEZY EXCEPT FOR PERIODS OF OUTFLOW WINDS FROM
SHOWERS AND THUNDERSTORMS IN THE VICINITY OF THE TERMINAL BETWEEN 21-
04Z. WIND GUSTS IN EXCESS OF 35 KTS ARE POSSIBLE THROUGH THIS
PERIOD. OTHERWISE, VFR CONDITIONS GENERALLY PREVAIL THROUGH THE
PERIOD, THOUGH A BRIEF REDUCTION TO MVFR VIS COULD BE ACHIEVED UNDER
A CELL PRODUCING HEAVY RAINFALL. DRY CONDITIONS PREVAIL THROUGH THE
REMAINDER OF THE NIGHT WITH LIGHT SOUTHEASTERLY WINDS PERSISTING.
REST OF UTAH AND SOUTHWEST WYOMING...ACROSS NORTHERN UTAH,
ENVIRONMENTAL CONDITIONS ARE FAVORABLE FOR PYROCUMULONIMBUS
DEVELOPMENT ON THE ROCKY CANYON FIRE NEAR EAST CANYON RESERVOIR LATE
THIS AFTERNOON, BUT IS HEAVILY DEPENDENT ON FIRE ACTIVITY REMAINING
HIGH. OTHERWISE, WIDELY SCATTERED SHOWERS AND THUNDERSTORMS
DEVELOPING THIS AFTERNOON WILL MOVE NORTHEAST THROUGH THE EVENING,
CAPABLE OF PRODUCING GUSTY AND ERRATIC OUTFLOW WINDS TO 40 KTS FOR
NEARLY ALL REGIONAL TERMINALS. VFR CONDITIONS GENERALLY PREVAIL FOR
MOST TERMINALS, THOUGH MVFR VIS MAY DEVELOP BRIEFLY UNDER HEAVY
RAINFALL. OUTSIDE OF OUTFLOWS, WINDS REMAIN GENERALLY LIGHT AND
DIURNALLY DRIVEN THROUGH THE TAF PERIOD.
FIRE WEATHER, ISSUED 1214 PM MDT MON AUG 10 2026
THE MONSOON PATTERN REMAINS IN PLACE FOR THE REMAINDER
OF THE WEEK. THIS MOISTURE WILL PRIMARILY BE FOCUSED ACROSS THE
SOUTHERN 2/3RDS OF THE AREA THROUGH MIDWEEK BEFORE A TROUGH MOVING
IN FROM THE WEST HELPS TO DEVELOP MORE CONVECTION ACROSS THE NORTH
THURSDAY AND FRIDAY. TEMPERATURES WILL ALSO DECREASE BY 10-15 DEGREES
BY THE END OF THE WEEK. NOCTURNAL CONVECTION WILL BE POSSIBLE THROUGH
THE WEEK, BUT DETAILS WILL LIKELY REMAIN UNCERTAIN ON WHERE AND WHEN
UNTIL THE DAY OF ANY NOCTURNAL ACTIVITY AS THESE FEATURES ARE USUALLY
BASED ON HOW THE CONVECTION EVOLVES DURING THE DAY.
THIS TROUGH WILL BRING SLIGHTLY DRIER AIR TO THE REGION FOR THIS
WEEKEND WHICH WILL REDUCE THE FLASH FLOODING PROBABILITIES. IT WILL ALSO
SLIGHTLY INCREASE SOUTHWESTERLY WINDS THURSDAY AND FRIDAY, BUT THE
MAGNITUDE OF THESE WINDS CURRENTLY LOOK TO REMAIN BELOW 30 MPH.
SLC WATCHES/WARNINGS/ADVISORIES
UT...NONE.
WY...RED FLAG WARNING UNTIL 9 PM MDT THIS EVENING FOR WYZ277.
PUBLIC...
AVIATION...WHITLAM
FIRE WEATHER...MAHAN
FOR MORE INFORMATION FROM NOAA'S NATIONAL WEATHER SERVICE VISIT...
HTTP://WEATHER.GOV/SALTLAKECITY
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