Flash Flood Warning 26, NWS Salt Lake City, UT

000 
WGUS75 KSLC 162146
FFSSLC

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
342 PM MDT THU AUG 16 2007

UTC045-162230-
TOOELE UT-
342 PM MDT THU AUG 16 2007

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 430 PM MDT FOR EAST
CENTRAL TOOELE COUNTY...

AT 336 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATES 
THAT THE HEAVY RAINFALL THAT HAD FALLEN OVER THE KIMBELL BURN HAS 
CEASED.  AS A RESULT...MUD AND WATER THAT HAS FLOWED OUT OF THE BURN 
SCAR OVER STATE ROUTE 136 IS EXPECTED TO STOP BY 430 PM THIS 
EVENING.  UDOT ROAD CREWS WERE DISPATCHED TO THE AREA...AND HAVE 
CLEARED MUD AND DEBRIS FROM STATE ROUTE 136. 

IF YOU ARE TRAVELING ALONG STATE ROUTE 136 NEAR GRANTSVILLE... 
PLEASE USE CAUTION AS THE ROAD MAY HAVE SOME RESIDUAL DEBRIS AND MUD 
ON THE ROAD.

LAT...LON 4065 11264 4060 11250 4073 11247 4074 11255

$$

MCINERNEY

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
1000 AM MDT THU AUG 16 2007

.SYNOPSIS...HIGH PRESSURE TO OUR EAST WILL WEAKEN OVER THE NEXT
COUPLE OF DAYS AS AN UPPER TROUGH MOVES INTO THE PACIFIC NORTHWEST
STATES. THIS WILL BRING AN INCREASING SOUTHWEST FLOW TO UTAH OVER
THE WEEKEND AND A GRADUAL DRYING TREND INTO EARLY NEXT WEEK.

&&

.DISCUSSION...LIGHT SOUTHERLY FLOW BETWEEN THE CENTRAL US HIGH AND
THE OFFSHORE TROF IS OVER UTAH TODAY. A FAIRLY MOIST AIRMASS IS IN
PLACE AREA-WIDE AND BOTH MODELS INDICATE A LOW-MID LEVEL FEATURE
OVER SRN UT THIS MORNING THAT LIFTS THRU CENTRAL/NRN UT LATE TODAY
AND TONIGHT...LIKELY ENHANCING THE CONVECTION.

FLOW VEERS A BIT ON FRI BUT REMAINS MOIST AND NAM FINDS ANOTHER WEAK
SHORT WAVE TO LIFT THRU NRN UT LATE IN THE DAY AND THROUGH THE EVE.
THE FLOW INCREASES SAT AS THE ERN PAC TROF BEGINS TO EDGE INLAND
BUT BOTH MODELS INDICATE THAT ANY DRYING WILL HOLD OFF TIL SUN. SO
WITH THE INCREASING FLOW ALOFT AND RESULTANT INCREASING SPEED
SHEAR...ISOLATED STRONG STORMS COULD OCCUR OVER NRN UT SAT
AFTERNOON.

06Z GFS WAS DRYING OUT THE FORECAST AREA ON SUN AS FLOW CONTINUES TO
VEER TO MORE WESTERLY BUT NEW NAM KEEPS FLOW MORE SWLY AND MOISTURE
IN PLACE.

FOR NOW...THE POTENTIAL INCREASE IN TSTM COVERAGE TODAY WILL BE
MOST LIKELY THIS EVE SO WILL LEAVE FORECASTS AS IS FOR NOW AND WILL
SEE IF ANY COVERAGE CHANGES ARE STILL NEEDED THIS AFTN.

&&

.AVIATION...AN INCREASING SOUTHERLY GRADIENT IS EXPECTED TO DELAY
THE DAILY WIND SHIFT TO THE NORTHWEST AT THE KSLC TERMINAL UNTIL AT
LEAST 21Z TODAY...AND THERE IS A 40 PERCENT CHANCE THAT WINDS WILL
REMAIN SOUTHERLY THROUGHOUT THE DAY. THE CHANCE OF A THUNDERSTORM
DIRECTLY IMPACTING THE SLC TERMINAL IS LESS THAN 10 PERCENT
TODAY...BUT THERE IS A 20 PERCENT CHANCE THAT OUTFLOW FROM NEARBY
THUNDERSTORMS WILL RESULT IN PERIODS OF GUSTY WINDS WITH ERRATIC
DIRECTIONS LATE THIS AFTERNOON.

&&

.FIRE WEATHER...THE HIGH CENTER NEAR THE FOUR CORNERS REGION WILL
KEEP MOISTURE MOVING NORTH OVER THE DISTRICT FOR THE NEXT COUPLE OF
DAYS. SCATTERED AFTERNOON CONVECTION WILL DEVELOP ONCE AGAIN THIS
AFTERNOON...WITH THE GREATEST COVERAGE EXPECTED OVER CENTRAL AND
SOUTHEASTERN UTAH WHERE MOISTURE IS HIGHEST. LOCALLY HEAVY RAINFALL
AND FLASH FLOODING IS POSSIBLE WITH THESE STORMS. WINDS WILL BE
GENERALLY LIGHT AND TERRAIN DRIVEN TODAY...THOUGH GUSTY WINDS MAY
OCCUR IN ASSOCIATION WITH ANY THUNDERSTORMS THAT FORM. THE FLOW
ALOFT IS EXPECTED TO INCREASE TOMORROW AS A TROUGH MOVES ONSHORE
ALONG THE PACIFIC NORTHWEST COAST...CAUSING AN INCREASE IN WINDS
INTO THE WEEKEND. IF HUMIDITIES DROP BELOW 15 PERCENT ON
SATURDAY...A RED FLAG WARNING WOULD BE WARRANTED...HOWEVER ONLY
NORTHWEST UTAH LOOKS TO BE AFFECTED AT THIS TIME.

&&

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

&&

WILENSKY/YOUNG

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
556 AM MDT THU AUG 16 2007

UTZ001>016-019>021-517-518-WYZ021-171200-
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-
556 AM MDT THU AUG 16 2007

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL UTAH...
NORTHERN UTAH...SOUTHERN UTAH...SOUTHWEST UTAH AND SOUTHWEST
WYOMING.

.DAY ONE...TODAY AND TONIGHT

WITH A MOIST AIRMASS IN PLACE...SHOWERS AND THUNDERSTORMS WILL
AGAIN DEVELOP ACROSS THE OUTLOOK AREA TODAY.  THE GREATEST
COVERAGE WILL BE ACROSS SOUTHEASTERN UTAH...WHERE A COUPLE OF
STORMS MAY PRODUCE HEAVY RAINFALL.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

SHOWERS AND THUNDERSTORMS WILL BE SCATTERED ABOUT THE REGION
FRIDAY AND SATURDAY...WITH LOCALLY HEAVY RAINFALL AMOUNTS
POSSIBLE. A FEW STORMS ON SATURDAY MAY BECOME SEVERE.

.SPOTTER INFORMATION STATEMENT...

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

BARJENBRUCH

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