Flash Flood Warning 63, NWS Salt Lake City, UT

418 
WGUS75 KSLC 152316
FFSSLC

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
516 PM MDT TUE SEP 15 2015

UTC025-053-160115-
/O.CON.KSLC.FF.W.0063.000000T0000Z-150916T0115Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
KANE UT-WASHINGTON UT-
516 PM MDT TUE SEP 15 2015

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 715 PM MDT FOR
SOUTHWESTERN KANE AND SOUTHEASTERN WASHINGTON COUNTIES...

AT 512 PM MDT...LIGHT TO MODERATE RAINFALL CONTINUES OVER THE 
HILDALE DRAINAGE. AS A RESULT...THE THREAT OF FLASH FLOODING 
REMAINS. 
 
ADDITIONALLY...SEARCH AND RESCUE OPERATIONS CONTINUE IN THE DRAINAGE 
THROUGH THE EVENING HOURS AND ARE SUSCEPTIBLE TO HIGHER FLOWS DUE TO 
THUNDERSTORM ACTIVITY.

IT IS EXPECTED THAT FLOWS WILL CONTINUE THROUGH THE EVENING HOURS.
 
SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE... HILDALE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF YOU ARE IN THE HILDALE AREA THROUGH THE EVENING AND NIGHTTIME 
HOURS...PLEASE TAKE PRECAUTIONS TO ENSURE FOR YOUR SAFETY.

&&

LAT...LON 3709 11293 3708 11288 3700 11287 3700 11299
      3704 11300

$$

MCINERNEY

893 
WGUS75 KSLC 160110
FFSSLC

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
710 PM MDT TUE SEP 15 2015

UTC025-053-160116-
/O.EXP.KSLC.FF.W.0063.000000T0000Z-150916T0115Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
KANE UT-WASHINGTON UT-
710 PM MDT TUE SEP 15 2015

...THE FLASH FLOOD WARNING FOR SOUTHWESTERN KANE AND SOUTHEASTERN
WASHINGTON COUNTIES WILL EXPIRE AT 715 PM MDT...

RUNOFF FROM EARLIER PRECIPITATION HAS DIMINISHED GREATLY IN THE 
HILDALE AREA. ADDITIONAL LIGHT SHOWERS ARE EXPECTED THROUGH THIS 
EVENING BUT THE THREAT OF ADDITIONAL FLASH FLOODING HAS ENDED. 
THEREFORE...THE FLASH FLOOD WARNING HAS BEEN ALLOWED TO EXPIRE. 
MONITOR NOAA WEATHER RADIO OR LOCAL TELEVISION OR RADIO FOR THE 
LATEST WEATHER INFORMATION.

LAT...LON 3709 11293 3708 11288 3700 11287 3700 11299
      3704 11300

$$

PW

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
1116 AM MDT TUE SEP 15 2015

.SYNOPSIS...A MOIST AND UNSTABLE SOUTHWEST FLOW ALOFT WILL REMAIN
OVER THE REGION THROUGH MIDWEEK. A DRIER AND MORE STABLE AIR MASS
WILL MOVE INTO UTAH BEHIND THE EXITING UPPER LEVEL TROUGH LATE IN
THE WEEK.

&&

.DISCUSSION...A VERY MOIST AND UNSTABLE AIR MASS REMAINS IN PLACE
AHEAD OF THE UPPER TROUGH POSITIONED OVER THE PACIFIC NORTHWEST
THIS MORNING. A NUMBER OF SHORTWAVES WILL EJECT OUT OF THE MAIN
TROUGH THE NEXT COUPLE OF DAYS...LEADING TO A FAIRLY HIGH THREAT
FOR ADDITIONAL SHOWERS AND STORMS THROUGH AT LEAST EARLY
THURSDAY.

THE COLD FRONT OVER EXTREME NORTHWEST UTAH WILL SAG SOUTHEAST
TODAY...SETTLING INTO CENTRAL UTAH THIS EVENING. SCATTERED
CONVECTION ALONG AND AHEAD OF THIS BOUNDARY WILL REMAIN FAIRLY
STRONG AND ACTIVE ACROSS THE NORTH NEAR THE BEST DYNAMIC/THERMAL
SUPPORT FOR DEEP LIFT. GOOD MOISTURE CONVERGENCE INTO THE FRONT
OVER CENTRAL UTAH COULD RESULT IN MORE PERSIST PRECIP...WITH THE
POTENTIAL FOR A LONGER DURATION RAIN EVENT ALONG AND NORTH OF THE
FRONTAL BOUNDARY.

THE PACIFIC NORTHWEST TROUGH WILL FINALLY EJECT EAST ACROSS THE
NORTHERN ROCKIES/NORTHERN GREAT BASIN WEDNESDAY NIGHT/THURSDAY.
WIDESPREAD PRECIP WILL DEVELOP ACROSS THE NORTH IN ASSOCIATION
WITH THE ADVANCING TROUGH...WITH HEAVY PRECIP REMAINING A
POSSIBILITY IN THE STRONGER CONVECTION. A DRIER AND MORE STABLE
WESTERLY FLOW ALOFT WILL FOLLOW THE TROUGH LATE IN THE WEEK.

&&

.AVIATION...TIMING OF WIND SHIFT AT THE SLC TERMINAL AND VICINITY
THUNDERSTORM ACTIVITY ARE THE BIGGEST FORECAST CHALLENGES FOR TODAY.
CURRENTLY GOING WITH A SHIFT TO NORTHWEST WINDS BETWEEN 18-
20Z...WITH A 40 PERCENT CHANCE OF A MORE WESTERLY SHIFT IN THIS
TIMEFRAME.  INCREASING SHOWERS AND THUNDERSTORMS IGNITING AS EARLY
AS 16Z WILL BRING GUSTY ERRATIC WINDS AND POSSIBLE BRIEF MVFR
CONDITIONS THROUGH AT LEAST 00Z.

&&

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

&&

PUBLIC...CONGER
AVIATION...VERZELLA

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
307 AM MDT TUE SEP 15 2015

UTZ001>016-019>021-517-518-WYZ021-161300-
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-
307 AM MDT TUE SEP 15 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. THE
STRONGEST WILL BE CAPABLE OF PRODUCING LOCALLY HEAVY
RAINFALL AND SMALL HAIL.

GUSTY SOUTHWEST WINDS ARE FORECAST TO DEVELOP ACROSS PORTIONS OF
CENTRAL AND SOUTHERN UTAH THIS AFTERNOON.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

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

GUSTY SOUTHWEST WINDS ARE FORECAST TO DEVELOP ACROSS PORTIONS OF
CENTRAL AND SOUTHERN UTAH WEDNESDAY AFTERNOON.

COLD CONDITIONS ARE EXPECTED FRIDAY MORNING...WITH A HARD FREEZE
POSSIBLE FOR THE WASATCH MOUNTAIN VALLEYS.

.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
223 PM MDT TUE SEP 15 2015

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

0100 PM     FLASH FLOOD      10 NE DUGWAY            40.33N 112.62W
09/15/2015                   TOOELE             UT   EMERGENCY MNGR

            DEBRIS OVER STATE ROUTE 199 AT JOHNSON PASS.

0140 PM     FLOOD            DRAPER                  40.50N 111.86W
09/15/2015                   SALT LAKE          UT   NWS EMPLOYEE

            STREET FLOODING ALONG 12300 SOUTH

&&

MCONGER