Flash Flood Warning 110, NWS Salt Lake City, UT

566 
WGUS75 KSLC 132339
FFSSLC

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
539 PM MDT FRI SEP 13 2013

UTC007-015-132348-
/O.EXP.KSLC.FF.W.0110.000000T0000Z-130913T2345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CARBON UT-EMERY UT-
539 PM MDT FRI SEP 13 2013

...THE FLASH FLOOD WARNING WILL EXPIRE AT 545 PM MDT FOR NORTHWESTERN
EMERY AND SOUTHWESTERN CARBON COUNTIES...

THE FLASH FLOOD THREAT FOR THE SEELEY BURN SCAR HAS ENDED.

LAT...LON 3944 11126 3970 11125 3971 11124 3971 11093
      3943 11094

$$

ROGOWSKI

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
1123 AM MDT FRI SEP 13 2013

.SYNOPSIS...THE UPPER LEVEL LOW PRESSURE SYSTEM OVER NORTHWEST
TODAY WILL TRACK SLOWLY EAST ACROSS NORTHERN UTAH OVER THE
WEEKEND. THIS LOW WILL EJECT NORTHEAST OUT OF THE STATE SUNDAY
NIGHT. A DRIER AND MORE STABLE WESTERLY FLOW ALOFT WILL FOLLOW
EARLY NEXT WEEK.

&&

.DISCUSSION...THE UPPER LOW CURRENTLY OVER NORTHWEST UTAH IS
ACCORDING TO MORNING SATELLITE IMAGERY GENERATING FAIRLY DEEP
CONVECTION OVER THE NORTHWEST DESERT/SALT FLATS. STRONG LIFT
WORKING ON THE QUITE MOIST/UNSTABLE AIRMASS SHOULD MAINTAIN DEEP
CONVECTION WITH THE LIKELIHOOD OF HEAVY RAIN THROUGH AT LEAST
EARLY THIS EVENING. NO FLOOD PRONE AREAS ARE UNDER ANY OF THE
STRONGER CONVECTION LATE THIS MORNING...THOUGH DO ANTICIPATE THAT
A COUPLE OF BURN SCARS COULD BE IMPACTED THROUGH THIS EVENING.

GOOD HEATING DOWN SOUTH AND A STILL FAIRLY MOIST AIRMASS SHOULD
LEAD A BIT MORE AFTERNOON/EVENING CONVECTION ACROSS
SOUTHERN/CENTRAL UTAH. SOME HINT THAT A VORTICITY LOBE IS ROTATING
SOUTHEAST THROUGH THE SOUTHWEST QUADRANT OF THE LOW OVER CENTRAL
NEVADA AT TIME. THIS DYNAMIC FEATURE SHOULD ADD SOME ORGANIZATION
TO CONVECTION...AND LIKELY GENERATE A FEW HEAVY RAIN PRODUCING
CELLS ACROSS THE SOUTHWEST AND WEST-CENTRAL VALLEYS.

SATURDAY MAY NOT BE SUBSTANTIALLY DIFFERENT IN TERMS OF
CONVECTION AS THE UPPER LOW WILL ONLY DRIFT SLIGHTLY FURTHER EAST
FROM TODAYS POSITION. THE NEXT UPPER TROUGH ROTATING NORTHEAST
THROUGH THE PACIFIC NORTHWEST LATE SUNDAY WILL KICK THE REMNANT OF
THE NORTHERN UTAH UPPER LOW OUT OF THE STATE SUNDAY NIGHT. DRIER
AIR MOVING IN FROM THE WEST WILL BRING ABOUT A MARKED DECREASE IN
CONVECTION BEGINNING EARLY NEXT WEEK.

&&

.AVIATION...LIGHT SOUTHERLY WINDS WILL PREVAIL AT THE SLC TERMINAL
THROUGH 19-20Z. NORTHWEST WINDS SHOULD THEN PREVAIL...ALTHOUGH
THE NORTH WINDS COULD HOLD OFF UNTIL 20Z. THERE IS ALSO A 30 PERCENT
CHANCE OF GUSTY ERRATIC WINDS IN THE LATE AFTERNOON AND EVENING
HOURS WITH PASSING SHOWERS AND THUNDERSTORMS. A 10 PERCENT CHANCE
OF A THUNDERSTORM DIRECTLY IMPACTING THE TERMINAL AND LOWERING
CEILINGS NEAR 7000 FT IS POSSIBLE. OTHERWISE VFR CONDITIONS WILL
PREVAIL THROUGH THE TAF PERIOD.

&&

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

PUBLIC...CONGER
AVIATION...YOUNG

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
515 AM MDT FRI SEP 13 2013

UTZ001>016-019>021-517-518-WYZ021-141200-
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-
515 AM MDT FRI SEP 13 2013

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

.DAY ONE...TODAY AND TONIGHT

SHOWERS AND THUNDERSTORMS WILL CONTINUE AT TIMES ACROSS MUCH OF
THE OUTLOOK AREA TODAY THROUGH TONIGHT.

HEAVY RAIN WILL ACCOMPANY SOME OF THE STORMS AND THIS WILL
CONTINUE TO GENERATE LOCAL FLASH FLOODING THROUGH THIS EVENING.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

SHOWERS AND THUNDERSTORMS WILL CONTINUE ACROSS MOST OF THE
OUTLOOK AREA SATURDAY...ALONG WITH A THREAT OF HEAVY RAIN AND
LOCAL FLASH FLOODING. THE HEAVY RAIN THREAT WILL GRADUALLY SHIFT
INTO THE NORTHERN PORTIONS OF THE AREA DURING THIS TIME...WHILE
IT DECREASES OVER THE SOUTH.

SHOWERS WILL TAPER OFF OVER THE SOUTH LATE IN THE WEEKEND AND
OVER THE NORTH ON MONDAY.

.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)

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