Flash Flood Warning 58, NWS Salt Lake City, UT

755 
WGUS75 KSLC 150156
FFSSLC

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
756 PM MDT MON SEP 14 2015

UTC053-150203-
/O.EXP.KSLC.FF.W.0058.000000T0000Z-150915T0200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WASHINGTON UT-
756 PM MDT MON SEP 14 2015

...THE FLASH FLOOD WARNING FOR EAST CENTRAL WASHINGTON COUNTY WILL
EXPIRE AT 800 PM MDT...

FLASH FLOODING IN THE DRAINAGE IS EXPECTED TO DECREASE... 
HOWEVER...ADDITIONAL THUNDERSTORMS ARE MOVING THROUGH THE NORTH 
CREEK DRAINAGE.  THIS AMOUNT OF ADDITIONAL PRECIPITATION MAY CAUSE 
RIVERS AND STREAMS TO REMAIN AT ELEVATED LEVELS THROUGHOUT THE 
EVENING AND NIGHTTIME HOURS.

IF YOU ANTICIPATE ON TRAVELING THROUGH THIS AREA...PLEASE BE AWARE 
OF HEIGHTENED RIVER LEVELS.



LAT...LON 3740 11307 3732 11297 3717 11310 3720 11320
      3720 11330 3738 11324

$$

MCINERNEY

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
339 PM MDT MON SEP 14 2015

.SYNOPSIS...A COOL AND UNSETTLED PATTERN WILL CONTINUE THROUGH
MIDWEEK.

&&

.DISCUSSION...AN ACTIVE FALL PATTERN WILL IMPACT UTAH FOR THE NEXT
SEVERAL DAYS. THE SYNOPTIC PATTERN AT 500MB FEATURES SOUTHWESTERLY
FLOW OVER THE WESTERN U.S. IN ADVANCE OF A LONGWAVE TROUGH
APPROACHING THE COAST. A FEW WEAK SHORTWAVES EMBEDDED WITHIN THE
FLOW HAVE SPARKED SCATTERED SHOWERS AND A FEW THUNDERSTORMS OVER THE
CWA TODAY. THIS ACTIVITY WILL CONTINUE INTO THE EVENING AND
OVERNIGHT WITH SHOWERS MORE LIKELY ACROSS THE NORTH AND IN AREAS
TYPICALLY FAVORED UNDER SOUTHWESTERLY FLOW.

TUESDAY...A MORE VIGOROUS SHORTWAVE PRESSES ONSHORE INTO NORTHERN
CALIFORNIA LEADING TO INCREASING DIVERGENCE ALOFT AND FRONTOGENESIS
AT LOWER LEVELS OVER THE GREAT BASIN. THE FRONTAL BOUNDARY THAT
DEVELOPS OVER NEVADA WILL WEAKEN AS IT SAGS INTO NORTHWESTERN UTAH
BY MIDDAY...BUT WILL STILL ACT TO FOCUS PRECIPITATION ACROSS THE
NORTHWESTERN THIRD OF THE STATE BY TOMORROW AFTERNOON. TEMPERATURES
WILL BE SIGNIFICANTLY COOLER BEHIND THE FRONT AND DEPENDING ON ITS
PROGRESSION...DAYTIME HIGHS ACROSS THE NORTH COULD OCCUR IN THE
MORNING BEFORE AFTERNOON SHOWERS FILL IN. AS THE SHORTWAVE DIGS OVER
THE GREAT BASIN TUESDAY NIGHT...THE BOUNDARY WILL TEMPORARILY LIFT
NORTH WITH PRECIPITATION DIMINISHING ALONG THE SOUTHERN WASATCH
FRONT.

ON WEDNESDAY...THE PRIMARY SHORTWAVE LIFTS THROUGH THE NORTHERN CWA
DRIVING THE FRONTAL BOUNDARY SOUTH AGAIN...LEADING TO RENEWED
PRECIPITATION ALONG THE WASATCH FRONT DURING THE LATE MORNING AND
AFTERNOON. THIS ACTIVITY WILL DIMINISH QUICKLY DURING THE EVENING AS
THE TROUGH BEINGS LIFTING RAPIDLY TO OUR NORTHEAST. MODELS THEN
DISAGREE ON WHETHER A WEAK SHORTWAVE WILL IMPACT THE NORTHERN THIRD
OF THE CWA ON THURSDAY AFTERNOON...BUT THE COVERAGE AND INTENSITY OF
SHOWERS SHOULD BE RATHER LOW EVEN IF THIS TURNS OUT TO BE THE CASE.

FRIDAY INTO THE WEEKEND...ALTHOUGH A BROAD TROUGH IS EXPECTED TO
LINGER OVER THE WEST...HEIGHTS WILL BE GRADUALLY RISING THROUGHOUT
THE PERIOD. THIS WILL LEAD TO CLEARING SKIES AND TEMPERATURES
WARMING BACK TO NEAR NORMAL...ALLOWING FOR A VERY PLEASANT EARLY
FALL WEEKEND.

&&

.AVIATION...SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS WILL
RETURN TO THE KSLC TERMINAL BETWEEN 2230-2300Z AND CONTINUE THROUGH
ABOUT 02Z. WINDS ARE EXPECTED TO BECOME SOUTHERLY BETWEEN 2230 AND
2300Z AS WELL. GUSTY SOUTHERLY WINDS WILL PREVAIL TONIGHT BUT COULD
BE DISRUPTED AT TIMES BY SHOWERS AND THUNDERSTORMS. CIGS LIKELY TO
REMAIN ABOVE 070BKN BUT COULD TEMPORARILY LOWER IN SHOWERS AND
THUNDERSTORMS.

&&

.DISCUSSION...AN UPPER LEVEL TROUGH WILL REMAIN OVER THE WESTERN
U.S. THROUGH MID WEEK. A SERIES OF UPPER LEVEL DISTURBANCES MOVING
THROUGH THE TROUGH WILL BRING A PERIOD OF COOL AND WET WEATHER TO
MUCH OF UTAH THROUGH WEDNESDAY. A FRONTAL BOUNDARY WILL MOVE INTO
FAR NORTHWEST UTAH ON TUESDAY. SOUTH AND EAST OF THIS FRONT
INCREASING SOUTHWEST WINDS CAN BE EXPECTED. WINDS WILL STAY UP
TUESDAY NIGHT AHEAD OF A STRONGER COLD FRONT THAT WILL MOVE
THROUGH NORTHERN UTAH ON WEDNESDAY. VERY GUSTY SOUTH WINDS CAN BE
EXPECTED AHEAD OF THIS FRONT. NUMEROUS SHOWERS AND SCATTERED
THUNDERSTORMS ARE EXPECTED ACROSS NORTHERN UTAH TUESDAY THROUGH
WEDNESDAY WITH MORE SCATTERED COVERAGE ANTICIPATED ACROSS THE
SOUTH. WITH THE COOL AND MOIST CONDITIONS IN PLACE...AFTERNOON
MINIMUM RELATIVE HUMIDITY VALUES WILL RISE SIGNIFICANTLY AND
OVERNIGHT RECOVERIES WILL BE STRONG.

&&

.SLC WATCHES/WARNINGS/ADVISORIES...
UT...NONE.
WY...NONE.
&&

PUBLIC...RUTZ
AVIATION...STRUTHWOLF
FIRE WEATHER...GRAHAM

FOR MORE INFORMATION FROM NOAA/S NATIONAL WEATHER SERVICE VISIT...
HTTP://WEATHER.GOV/SALTLAKECITY (ALL LOWER CASE)

FOR FREQUENTLY ASKED QUESTIONS ABOUT THE AREA FORECAST DISCUSSION
VISIT...
HTTP://WEATHER.GOV/SALTLAKECITY/GENERAL/AFD_FAQS.PHP (ALL LOWER CASE)

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
253 AM MDT MON SEP 14 2015

UTZ001>016-019>021-517-518-WYZ021-151300-
CACHE VALLEY/UTAH PORTION-NORTHERN WASATCH FRONT-
SALT LAKE AND TOOELE VALLEYS-SOUTHERN WASATCH FRONT-
GREAT SALT LAKE DESERT AND MOUNTAINS-WASATCH MOUNTAIN VALLEYS-
WASATCH MOUNTAINS I-80 NORTH-WASATCH MOUNTAINS SOUTH OF I-80-
WESTERN UINTA MOUNTAINS-WASATCH PLATEAU/BOOK CLIFFS-
WESTERN UINTA BASIN-CASTLE COUNTRY-SAN RAFAEL SWELL-
SANPETE/SEVIER VALLEYS-WEST CENTRAL UTAH-SOUTHWEST UTAH-
UTAHS DIXIE AND ZION NATIONAL PARK-SOUTH CENTRAL UTAH-
GLEN CANYON RECREATION AREA/LAKE POWELL-CENTRAL MOUNTAINS-
SOUTHERN MOUNTAINS-SOUTHWEST WYOMING-
253 AM MDT MON SEP 14 2015

THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE WESTERN TWO THIRDS OF
UTAH AND SOUTHWEST WYOMING.

.DAY ONE...TODAY AND TONIGHT

SCATTERED SHOWERS AND THUNDERSTORMS WILL AFFECT THE REGION. SOME
OF THESE STORMS WILL BE CAPABLE OF PRODUCING LOCALLY HEAVY
RAINFALL...ESPECIALLY ACROSS SOUTHERN UTAH THIS AFTERNOON AND
EVENING.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

UNSETTLED AND COOLER WEATHER WILL CONTINUE ACROSS MUCH OF THE
OUTLOOK AREA THROUGH MIDWEEK. THE BEST CHANCE FOR SIGNIFICANT
RAINFALL WILL OCCUR ACROSS THE NORTHERN AND WESTERN OUTLOOK AREA
TUESDAY...THEN MAINLY OVER THE NORTHERN OUTLOOK AREA TUESDAY
NIGHT THROUGH WEDNESDAY. SNOW LEVELS MAY NEAR NINE THOUSAND FEET
WEDNESDAY ACROSS NORTHERN UTAH.

.SPOTTER INFORMATION STATEMENT...

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

ROGOWSKI/SCHOENING

FOR MORE INFORMATION FROM NOAA/S NATIONAL WEATHER SERVICE VISIT...
HTTP://WEATHER.GOV/SALTLAKECITY/ (ALL LOWER CASE)

FOR INFORMATION ON POTENTIAL ROAD TRAVEL IMPACTS VISIT...
HTTP://WWW.UDOTTRAFFIC.UTAH.GOV/ROADWEATHERFORECAST.ASPX

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
320 PM MDT MON SEP 14 2015

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0318 PM     FLASH FLOOD      2 N HILDALE             37.04N 112.97W
09/14/2015                   WASHINGTON         UT   911 CALL CENTER

            FLASH FLOOD AND DEBRIS FLOW ORIGINATING FROM SHORT CREEK
            FLOODED HWY 59 AND SURROUNDING AREAS.

&&

BMCINERN