Flash Flood Warning 20, NWS Salt Lake City, UT

615 
WGUS75 KSLC 111716
FFSSLC

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
1116 AM MDT THU JUN 11 2015

UTC025-111725-
/O.CAN.KSLC.FF.W.0020.000000T0000Z-150611T1930Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
KANE UT-
1116 AM MDT THU JUN 11 2015

...THE FLASH FLOOD WARNING FOR SOUTH CENTRAL KANE COUNTY IS
CANCELLED...

THE HEAVY RAIN HAS ENDED...AND FLOODING IS NO LONGER EXPECTED TO 
POSE A THREAT. HOWEVER...SEVERAL ROADS IN THE AREA HAVE BEEN DAMAGED 
AND CURRENTLY IMPASSABLE.  

PLEASE CONTINUE TO HEED ALL ROAD CLOSURES.

LAT...LON 3725 11180 3711 11155 3701 11148 3701 11165
      3706 11182 3718 11189 3726 11189

$$

MCINERNEY

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
320 AM MDT THU JUN 11 2015

.SYNOPSIS...A PACIFIC LOW PRESSURE SYSTEM WILL CROSS THE GREAT
BASIN TODAY...AND INTERACT WITH TROPICAL MOISTURE ALREADY IN
PLACE. MOISTURE WILL LINGER INTO THE DAY FRIDAY...BEFORE HIGH
PRESSURE DEVELOPS THIS WEEKEND.

&&

.DISCUSSION...WATER VAPOR LOOP SHOWS A CLOSED LOW NEAR LAS
VEGAS. AMDAR 400-250MB WIND OBSERVATIONS SHOW A 75-110KT
SOUTHWESTERLY JET FROM SOUTHERN CALIFORNIA INTO THE FOUR CORNERS
REGION. GOES/GPS/RAP/00Z SLC RAOB INDICATE THE PRECIPITABLE WATER
VALUE RANGES BETWEEN 0.75"-1.0".

COMBINATION OF DYNAMICS...MOISTURE AND INSTABILITY WILL CONTINUE TO
SUPPORT FAIRLY WIDESPREAD SHOWERS AND STORMS THROUGH THE DAY. WITH
DEWPOINTS WELL INTO THE 50S...AND MODEL SOUNDINGS INDICATING A
MODERATELY THICK WARM CLOUD LAYER...EXPECT STRONGER ACTIVITY TO
SUPPORT HEAVY RAINFALL. HAVE EXPANDED THE FLASH FLOOD WATCH INTO
RICHFIELD AND CEDAR CITY AS DEFORMATION AXIS ALIGNS IN THESE AREAS
BEFORE WASHING OUT LATER IN THE DAY.

FRIDAY THROUGH THE WEEKEND...WHILE THE MAIN CLOSED LOW PROPAGATES
WELL DOWN STREAM THERE IS PLENTY OF MOISTURE AND INSTABILITY TO
SUPPORT MORE DIURNAL CONVECTION ALONG AND DOWNSTREAM OF THE
MOUNTAINS. ADDITIONALLY...SOME MODELS INDICATE A TROUGH OR
DEFORMATION AXIS LINGERS OVER SOUTHERN UTAH. HAVE BUMPED UP POPS IN
THESE AREAS.

LARGE SCALE PATTERN BECOMES MORE ZONAL NEXT WEEK...WITH A WAVE
CROSSING OVER NORTHERN UTAH MONDAY BRINGING ANOTHER CHANCE FOR
CONVECTION.

TEMPERATURES WARM BEGINNING THIS WEEKEND WITH THE STORM SYSTEM
MOVING DOWNSTREAM. A SIGNIFICANT DRYING TREND WITH INCREASINGLY GUSTY
SOUTHWEST WINDS IS EXPECTED FOR THE MIDDLE OF NEXT WEEK.

&&

.AVIATION...SOUTHERLY WINDS ARE EXPECTED TO CONTINUE AT THE SLC
TERMINAL THROUGH THE MORNING...SHIFTING TO THE NORTHWEST BETWEEN 16-
18Z. SHOWERS AND THUNDERSTORMS ARE EXPECTED ACROSS NORTHERN UTAH
THIS AFTERNOON AND INTO THIS EVENING. THE HIGHEST THREAT FOR THE SLC
TERMINAL WILL BE BETWEEN 18-00Z. GUSTY AND ERRATIC WINDS WILL BE THE
BIGGEST THREAT...ALONG WITH HEAVY RAINFALL.

&&

.FIRE WEATHER...FAIRLY WIDESPREAD CONVECTION WITH A HIGH CHANCE OF A
WETTING RAIN DUE TO THE TROPICAL MOISTURE IN PLACE THROUGH FRIDAY.
THE PROSPECTS FOR THUNDERSTORMS WILL THIN THIS WEEKEND. A QUICK-
MOVING STORM SYSTEM WILL BRING ANOTHER ROUND OF STORMS ACROSS THE
NORTH MONDAY.

SEASONAL TEMPERATURES THROUGH FRIDAY...WILL TREND MUCH WARMER THIS
WEEKEND AND NEXT WEEK. HUMIDITY WILL TREND DRIER BEGINNING THIS
WEEKEND...BECOMING QUITE DRY WEDNESDAY AND THURSDAY AS A GUSTY
SOUTHWEST FLOW DEVELOPS. MANY AREAS WILL LIKELY SEE CRITICAL FIRE
WEATHER CONDITIONS DURING THIS PERIOD THOUGH FUELS ARE OF COURSE
REPORTED AS NOT CRITICAL AT THIS TIME.

&&

.SLC WATCHES/WARNINGS/ADVISORIES...
UT...FLASH FLOOD WATCH THROUGH THIS EVENING FOR UTZ010-012>014-016-
     019>021-517-518.

WY...NONE.
&&

PUBLIC/FIRE WEATHER...ROGOWSKI
AVIATION...KRUSE

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
335 AM MDT THU JUN 11 2015

UTZ001>016-019>021-517-518-WYZ021-121300-
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-
335 AM MDT THU JUN 11 2015

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 TO DEVELOP THROUGH THE
DAY AND INTO THE NIGHTTIME HOURS. DUE TO THE TROPICAL MOISTURE
THAT HAS SPREAD INTO THE AREA...HEAVY RAIN CAN BE EXPECTED WITH
SOME OF THE STORMS...POTENTIALLY LEADING TO FLASH FLOODING.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

LINGERING MOISTURE WILL CONTINUE TO PRODUCE ISOLATED TO SCATTERED
SHOWERS AND THUNDERSTORMS THROUGH THE WEEKEND...ALTHOUGH THEY WILL
BECOME INCREASINGLY CONFINED TO THE SOUTHERN AND EASTERN PORTIONS
OF THE OUTLOOK AREA AS DRIER AIR GRADUALLY SPREADS INTO NORTHWEST
UTAH. NORTHERN UTAH WILL SEE ADDITIONAL STORM ACTIVITY MONDAY.
TEMPERATURES WILL CLIMB INTO THE 90S AND LOW 100S ACROSS THE
REGION BY NEXT WEEK.

.SPOTTER INFORMATION STATEMENT...

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

ROGOWSKI

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