Flash Flood Warning 45, NWS Salt Lake City, UT

150 
WGUS75 KSLC 032303
FFSSLC

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
503 PM MDT MON AUG 3 2015

UTC017-025-040100-
/O.CON.KSLC.FF.W.0045.000000T0000Z-150804T0100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
GARFIELD UT-KANE UT-
503 PM MDT MON AUG 3 2015

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 700 PM MDT FOR
SOUTH CENTRAL GARFIELD AND NORTHEASTERN KANE COUNTIES...

AT 500 PM MDT...DOPPLER RADAR CONTINUED TO INDICATE THUNDERSTORMS 
PRODUCING HEAVY RAIN OVER THE ESCALANTE RIVER DRAINAGE. RADAR 
ESTIMATES INDICATE THAT OVER THREE INCHES OF RAIN HAVE ALREADY 
FALLEN.

FLASH FLOODING WILL REMAIN OVER MAINLY RURAL AREAS OF SOUTH CENTRAL 
GARFIELD AND NORTHEASTERN KANE COUNTIES...WITH THE RUNOFF CONTINUING 
DOWN THE ESCALANTE RIVER INTO LAKE POWELL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOVE TO HIGHER GROUND NOW. ACT QUICKLY TO PROTECT YOUR LIFE.

&&

LAT...LON 3784 11102 3755 11099 3737 11092 3734 11095
      3763 11126 3776 11129

$$

LC

193 
WGUS75 KSLC 040052
FFSSLC

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
652 PM MDT MON AUG 3 2015

UTC017-025-040100-
/O.EXP.KSLC.FF.W.0045.000000T0000Z-150804T0100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
GARFIELD UT-KANE UT-
652 PM MDT MON AUG 3 2015

...THE FLASH FLOOD WARNING FOR SOUTH CENTRAL GARFIELD AND
NORTHEASTERN KANE COUNTIES WILL EXPIRE AT 700 PM MDT...

RUNOFF FROM EARLIER PRECIPITATION ALONG THE ESCALANTE RIVER DRAINAGE 
HAS DIMINISHED. RIVER AND STREAM LEVELS WILL CONTINUE TO 
DECREASE...ALTHOUGH FLOWS MAY REMAIN HIGH THROUGH THE EVENING HOURS. 
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 3784 11102 3755 11099 3737 11092 3734 11095
      3763 11126 3776 11129

$$

LC

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
957 AM MDT MON AUG 3 2015

.SYNOPSIS...A LOW PRESSURE SYSTEM WILL SLOWLY THROUGH NORTHERN
UTAH TODAY. A DRIER SOUTHWESTERLY FLOW WILL FOLLOW FOR
MIDWEEK...THOUGH A WEAK UPPER LEVEL DISTURBANCE WILL SCRAPE ACROSS
THE NORTHERN SECTIONS OF THE FORECAST AREA. MOISTURE MAY RETURN
LATE IN THE WEEK.

&&

.DISCUSSION...A MOIST TROUGH IS PUSHING THROUGH NORTHERN UTAH AND
SOUTHWEST WYOMING THIS MORNING...WITH WIDESPREAD STRATIFORM
RAINFALL ACROSS THE AREA. WHILE RAIN RATES HAVE GENERALLY BEEN
LOW...THE RAINFALL HAS BEEN STEADY IN MANY LOCATIONS...WITH TOTALS
OVER THE LAST 12 HOURS GENERALLY 0.2-0.5 INCHES IN MANY NORTHERN
LOCATIONS...AND IN EXCESS OF ONE INCH ACROSS SOME OF THE HIGHER
TERRAIN.

THIS STORM WILL CONTINUE TO LIFT NORTHWARD THROUGH THE DAY...WITH
STEADY RAINFALL LIKELY EXITING THE UTAH/IDAHO BORDER THROUGH THE
EVENING HOURS. AS THIS WAVE SLOWLY CLEARS THE WASATCH FRONT
THROUGH THE AFTERNOON...CONDITIONS BEHIND THE WAVE SHOULD BE
FAIRLY STABLE AND SUBSIDENT...AND THE SUN COULD EVEN COME OUT
DURING THE LATTER HALF OF THE AFTERNOON.

AS FOR THE SOUTHERN HALF OF UTAH...A SIGNIFICANTLY DRIER AIRMASS
HAS MOVED INTO THE AREA BEHIND THE TROUGH...WITH PRECIPITABLE
WATER VALUES DROPPING TO NEAR 0.5 INCHES. THAT SAID...THERE STILL
LOOKS TO BE ENOUGH INSTABILITY TO ALLOW FOR ISOLATED TO WIDELY
SCATTERED SHOWERS TO POP UP THROUGH THE AFTERNOON...ESPECIALLY
ACROSS THE CENTRAL THIRD OF THE STATE.

UPDATED THE FORECAST EARLIER THIS MORNING TO INCREASE POPS AND
REMOVE THE MENTION OF LIGHTNING ACROSS THE NORTH THROUGH THE
MORNING...AS WELL AS FILL IN MENTIONABLE POPS ACROSS THE SOUTH FOR
THE AFTERNOON TO ACCOUNT FOR THE LINGERING INSTABILITY. ALSO
ADDED SOME DETAIL TO THE AFTERNOON HOURS TO ILLUSTRATE THE QUICKLY
DECREASING POPS ACROSS THE WASATCH FRONT THROUGH THE LATER
AFTERNOON HOURS.

&&

.AVIATION...RAIN WILL CONTINUE TO IMPACT THE SLC TERMINAL THROUGH
AT LEAST 18Z...WITH CEILINGS LIKELY REMAINING AROUND 6-7KFT IN
THE STEADY RAINFALL. RAIN SHOULD PUSH NORTH OF THE TERMINAL
BETWEEN 19Z AND 22Z...AND CEILINGS WILL RAISE SIGNIFICANTLY
THROUGH THIS TIME. WINDS ARE EXPECTED TO REMAIN NORTHWESTERLY
THROUGH AT LEAST 01Z...BUT THERE REMAINS A 20 PERCENT CHANCE THAT
WINDS COULD SWITCH BACK TO THE SOUTH BETWEEN 17Z AND 21Z AS THE
LOW PRESSURE SYSTEM REMAINS TO THE NORTH.

&&

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

SCHOENING

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
455 AM MDT MON AUG 3 2015

UTZ001>016-019>021-517-518-WYZ021-041100-
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-
455 AM MDT MON AUG 3 2015

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

.DAY ONE...TODAY AND TONIGHT

A BAND OF RAIN WITH POSSIBLE EMBEDDED THUNDERSTORMS WILL LIFT
SLOWLY NORTHWARD THROUGH THE NORTHERN HALF OF UTAH AND SOUTHWEST
WYOMING AS THE DAY PROGRESSES. A PERIOD OF MODERATE RAINFALL CAN
BE EXPECTED WITH THE CORE OF THE BAND.

SCATTERED SHOWERS AND THUNDERSTORMS ARE EXPECTED TO DEVELOP OVER
SOUTHERN UTAH THIS AFTERNOON.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

ANOTHER SURGE OF MOISTURE WILL BE POSSIBLE FROM LATE FRIDAY INTO
SATURDAY...WITH SHOWERS AND THUNDERSTORMS POSSIBLE.

.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)

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