Flash Flood Warning 15, NWS Salt Lake City, UT

000 
WGUS75 KSLC 312342
FFSSLC

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
539 PM MDT TUE JUL 31 2007

UTC023-039-312349-
SANPETE UT-JUAB UT-
539 PM MDT TUE JUL 31 2007

...THE FLASH FLOOD WARNING HAS BEEN CANCELED FOR EAST CENTRAL JUAB
AND NORTH CENTRAL SANPETE COUNTIES...

RUNOFF FROM EARLIER PRECIPITATION HAS DIMINISHED GREATLY. ALTHOUGH 
DRY WASHES RAN FULL OVER THE SALT CREEK BURN AREA...WATER DID NOT 
FLOW ACROSS STATE ROUTE 132. RAINFALL HAS NOW 
ENDED...THEREFORE...THE FLASH FLOOD WARNING HAS BEEN CANCELED. 
MONITOR NOAA WEATHER RADIO OR LOCAL TELEVISION OR RADIO FOR THE 
LATEST WEATHER INFORMATION.

LAT...LON 3973 11175 3958 11163 3970 11151 3980 11161

$$

CHENG/MCINERNEY

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
954 AM MDT TUE JUL 31 2007

.SYNOPSIS...ABUNDANT MOISTURE OVER SOUTHWEST UTAH WILL SPREAD
NORTHWARD ACROSS THE REGION TODAY. THIS MOISTURE WILL REMAIN IN
PLACE THROUGH THE END OF THE WEEK...RESULTING IN NUMEROUS SHOWERS
AND THUNDERSTORMS EACH DAY.

&&

.DISCUSSION...AMPLE MOISTURE OVER ENTIRE FORECAST AREA TODAY AS
EVIDENCED IN GOES PW IMAGERY...ROOFTOP GPS PW SENSOR AT THE WFO AND
TO A LESSER EXTENT THE SOUNDINGS...WHICH HAVE A DRY BIAS. TREND
FOR THE NEXT FEW DAYS IS FOR MOISTURE TO INCREASE EVEN MORE
ACCORDING TO MODELS.

NO WELL DEFINED SHORT WAVES IN WV IMAGERY AT THIS TIME SO EXPECT
CONVECTION TO FIRE IN SUNNY AREAS WITH TERRAIN ACTING AS THE
CONVERGENCE ZONES.

FLOW ALOFT IS QUITE LIGHT AND LOCALLY HEAVY RAIN WILL LIKELY
PRODUCE SOME FLASH FLOODING OVER THE SOUTHWEST THIS AFTERNOON AND
TONIGHT. FLASH FLOOD WATCH CONTINUES TO LOOK JUSTIFIED.

NO CHANGES TO CURRENT FORECASTS

&&

.AVIATION...THE MAIN CONCERN FOR THE SLC TERMINAL IS THUNDERSTORMS
AFTER 21Z. ISOLATED THUNDERSTORMS ARE EXPECTED TO AFFECT THE
SOUTHERN APPROACH ROUTES AFTER 20Z AND THEN A 30 PERCENT CHANCE OF
AFFECTING THE TERMINAL BY 21 OR 22Z. COVERAGE IS EXPECTED TO
INCREASE THIS EVENING. THE MAIN IMPACT WILL INITIALLY BE GUSTY
ERRATIC WINDS THIS AFTERNOON BUT THEN REDUCED VISIBILITY DUE TO
HEAVY RAIN IS A POSSIBILITY THIS EVENING.

&&

.FIRE WEATHER...MOISTURE WILL CONTINUE TO INCREASE AND SPREAD
NORTHWARD...ALLOWING FOR INCREASED COVERAGE OF SHOWERS AND
THUNDERSTORMS THIS AFTERNOON. THE STORMS SHOULD BE WET...BUT A FEW
DRY LIGHTNING STRIKES CANNOT BE RULED OUT OVER NORTHERN UTAH.
THUNDERSTORMS WILL CONTINUE THROUGH THE REST OF THE WEEK AS AMPLE
MOISTURE WILL REMAIN IN PLACE.

&&

.SLC WATCHES/WARNINGS/ADVISORIES...
UT...FLASH FLOOD WATCH UNTIL 9 PM TUESDAY FOR UTZ016-UTZ019-UTZ020-
     UTZ518.

WY...NONE.

&&

PUBLIC...DUNN
AVIATION/FIRE WEATHER...STRUTHWOLF

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

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
357 AM MDT TUE JUL 31 2007

UTZ001>011-014-015-517-WYZ021-011200-
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-SANPETE/SEVIER VALLEYS-WEST CENTRAL UTAH-
CENTRAL MOUNTAINS-SOUTHWEST WYOMING-
357 AM MDT TUE JUL 31 2007

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHERN AND
UTAH ALONG WITH FAR SOUTHWEST WYOMING.

.DAY ONE...TODAY AND TONIGHT

SCATTERED THUNDERSTORMS ARE EXPECTED TO DEVELOP THIS AFTERNOON AND
EVENING ACROSS THE OUTLOOK AREA...AS MOISTURE CONTINUES TO
INCREASE ACROSS THE REGION. HEAVY RAINFALL CAN BE EXPECTED WITH
THE STRONGEST STORMS...WHICH COULD LEAD TO LOCALIZED FLOODING. IN
ADDITION...FREQUENT LIGHTNING AND WIND GUSTS TO 50 MPH WILL ALSO
BE POSSIBLE.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

ABUNDANT MOISTURE WILL REMAIN IN PLACE THROUGH THE REMAINDER OF
THE WEEK...WHICH WILL ALLOW FOR SHOWERS AND THUNDERSTORMS EACH DAY
THROUGH AT LEAST FRIDAY. HEAVY RAIN WILL BE POSSIBLE WITH THE
STRONGEST STORMS...WHICH MAY LEAD TO LOCALIZED FLOODING. IN
ADDITION...GUSTY WINDS AND FREQUENT LIGHTNING CAN ALSO BE EXPECTED.

.SPOTTER INFORMATION STATEMENT...

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

UTZ012-013-016-019>021-518-011200-
CASTLE COUNTRY-SAN RAFAEL SWELL-SOUTHWEST UTAH-
UTAHS DIXIE AND ZION NATIONAL PARK-SOUTH CENTRAL UTAH-
GLEN CANYON RECREATION AREA/LAKE POWELL-SOUTHERN MOUNTAINS-
357 AM MDT TUE JUL 31 2007

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHERN AND
EAST CENTRAL UTAH.

.DAY ONE...TODAY AND TONIGHT

ABUNDANT MOISTURE SPREADING NORTHWARD INTO THE OUTLOOK AREA WILL
ALLOW FOR THUNDERSTORMS REDEVELOPING THIS AFTERNOON AND EVENING.
LOCALLY TORRENTIAL RAINFALL WILL BE POSSIBLE WITH THE STRONGEST
STORMS. THIS MAY RESULT IN FLASH FLOODING...ESPECIALLY ACROSS
AREAS PRONE TO FLOODING SUCH AS SLOT CANYONS AND NORMALLY DRY
WASHES. THE THREAT FOR HEAVY RAINFALL AND ATTENDANT FLASH
FLOODING IS HIGHEST ACROSS SOUTHWEST AND SOUTH CENTRAL UTAH LATE
THIS AFTERNOON AND THIS EVENING.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

MOISTURE WILL REMAIN IN PLACE THROUGH THE UPCOMING WEEKEND...WHICH
WILL ALLOW FOR THE REDEVELOPMENT OF SHOWERS AND THUNDERSTORMS EACH
DAY. LOCALLY TORRENTIAL RAINFALL AND SUBSEQUENT FLASH FLOODING
WILL BE POSSIBLE...ESPECIALLY ACROSS SLOT CANYONS AND NORMALLY DRY
WASHES.

.SPOTTER INFORMATION STATEMENT...

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

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