Severe Thunderstorm Warning 18, NWS Salt Lake City, UT

066 
WWUS55 KSLC 070346
SVSSLC

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
946 PM MDT WED AUG 6 2014

UTC045-070354-
/O.CAN.KSLC.SV.W.0018.000000T0000Z-140807T0400Z/
TOOELE UT-

946 PM MDT WED AUG 6 2014

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL TOOELE COUNTY IS
CANCELLED...
    
THE SEVERE THUNDERSTORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF 
THE WARNED AREA. THEREFORE THE WARNING HAS BEEN CANCELLED.

LAT...LON 4053 11216 4064 11218 4069 11208 4056 11202
TIME...MOT...LOC 0344Z 231DEG 24KT 4059 11207 

$$

UTC035-070400-
/O.CON.KSLC.SV.W.0018.000000T0000Z-140807T0400Z/
SALT LAKE UT-
946 PM MDT WED AUG 6 2014

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1000 PM MDT
FOR WEST CENTRAL SALT LAKE COUNTY...

AT 944 PM MDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE
OF PRODUCING QUARTER SIZE HAIL AND DAMAGING WINDS IN EXCESS OF 60 
MPH. THIS STORM WAS LOCATED NEAR COPPERTON...OR 8 MILES SOUTHWEST OF 
WEST VALLEY CITY...MOVING NORTHEAST AT 25 MPH.

LOCATIONS IMPACTED INCLUDE...
WEST VALLEY CITY...WEST JORDAN...SOUTH JORDAN...MAGNA...OQUIRRH AND
COPPERTON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS...DESTRUCTIVE HAIL...
DEADLY LIGHTNING AND VERY HEAVY RAIN. FOR YOUR PROTECTION MOVE TO AN
INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. HEAVY
RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE INTO AREAS WHERE WATER
COVERS THE ROAD.

SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS IN EXCESS OF 60 MPH
AND/OR LARGE HAIL AT LEAST ONE INCH IN DIAMETER. FOR YOUR
PROTECTION...MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSINESS.


&&

LAT...LON 4053 11216 4064 11218 4069 11208 4056 11202
TIME...MOT...LOC 0344Z 231DEG 24KT 4059 11207 

$$

GM

125 
WWUS55 KSLC 070358
SVSSLC

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
958 PM MDT WED AUG 6 2014

UTC035-070405-
/O.EXP.KSLC.SV.W.0018.000000T0000Z-140807T0400Z/
SALT LAKE UT-
958 PM MDT WED AUG 6 2014

...THE SEVERE THUNDERSTORM WARNING FOR WEST CENTRAL SALT LAKE COUNTY
WILL EXPIRE AT 1000 PM MDT...
                
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY.
THEREFORE THE WARNING WILL BE ALLOWED TO EXPIRE. HOWEVER GUSTY WINDS
UP TO 50 MPH ARE STILL POSSIBLE WITH THIS THUNDERSTORM.

LAT...LON 4053 11216 4064 11218 4069 11208 4056 11202
TIME...MOT...LOC 0354Z 231DEG 24KT 4059 11207 

$$

GM

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
429 PM MDT WED AUG 6 2014

.SYNOPSIS...AN UPPER LOW OVER NORTHEASTERN NEVADA WILL MOVE SLOWLY
EAST ACROSS NORTHERN UTAH TODAY THROUGH THURSDAY NIGHT. A DRYING
TREND WILL DEVELOP FRIDAY AND CONTINUE INTO SATURDAY. MOISTURE
WILL START TO SPREAD BACK NORTH INTO THE AREA LATE IN THE WEEKEND.

&&

.DISCUSSION...SHOWERS AND THUNDERSTORMS HAVE DEVELOPED ACROSS
NORTHERN UTAH THIS AFTERNOON...THOUGH COVERAGE IS MUCH LESS
WIDESPREAD THAN IT HAS BEEN THE PAST TWO DAYS. THERE WAS QUITE A
BIT OF EXCITEMENT EARLIER THIS AFTERNOON WHEN A SURFACE BOUNDARY
MOVED INTO THE SALT LAKE VALLEY AND SPURRED CONVECTION. WITH DEEP
MOISTURE...STORMS PRODUCED HEAVY RAIN AND CAUSED SOME STREET
FLOODING IN THE SALT LAKE VALLEY. STORMS WILL CONTINUE ACROSS
CENTRAL AND NORTHERN UTAH INTO THIS EVENING. COVERAGE WILL BE THE
MOST WIDESPREAD ACROSS NORTHWEST UTAH WHERE MOISTURE IS
DEEPEST...AND DYNAMICS ARE BEST DUE TO A CIRCULATION CENTER SLOWLY
TRACKING INTO NORTHWEST UTAH. ACROSS NORTHERN UTAH...EXPECT THAT
STORMS WILL CONTINUE INTO THE OVERNIGHT HOURS AS THE UPPER LOW
TRACKS EASTWARD ACROSS THE STATE.

THE CONVECTION ACROSS CENTRAL UTAH IS MORE OF THE DIURNAL
TYPE...AND WILL DISSIPATE WITH SUNSET.

TOMORROW WILL BE COOL AND UNSETTLED ACROSS NORTHERN UTAH...WITH
HIGH TEMPERATURES IN THE MID TO UPPER 70S AS THE 700MB FRONT MOVES
THROUGH NORTHERN UTAH. SHOWERS WILL BECOME MORE WIDESPREAD THROUGH
THE MORNING AND INTO EARLY AFTERNOON AS THE 500MB COLD POOL MOVES
OVERHEAD.

DRIER AIR WILL MOVE INTO THE FORECAST AREA FROM THE SOUTH ON
FRIDAY...BRINGING A DECREASE IN CONVECTION. THE BREAK IN
CONVECTION WILL BE SHORT LIVED...HOWEVER...AS MODELS SUGGEST THAT
MOISTURE RETURNS TO THE FORECAST AREA FROM THE SOUTH ON SUNDAY.

&&

.AVIATION...EXPECT ISOLATED SHOWERS AND THUNDERSTORMS TO FORM ALONG A BOUNDARY
JUST SOUTH OF THE SLC TERMINAL THIS AFTERNOON AND INTO THIS EVENING
ACROSS NORTHERN UTAH. A 20 PERCENT CHANCE OF A THUNDERSTORM DIRECTLY
IMPACTING THE TERMINAL WILL REMAIN THROUGH 02Z. NORTHERLY
WINDS WINDS WILL CONTINUE UNTIL AROUND 03-04Z THEN TURN SOUTHEAST.
OTHERWISE VFR CONDITIONS WILL PREVAIL.

&&

.FIRE WEATHER...THE ABUNDANT MOISTURE FOUND ACROSS FAR NORTHERN UTAH
THIS AFTERNOON WILL REMAIN IN PLACE OR DRIFT SLIGHTLY FURTHER NORTH
THROUGH THE END OF THE WEEK. ACROSS SOUTHERN AND CENTRAL UTAH
SOMEWHAT DRIER AIR SPREADING INTO THAT AREA OF THE STATE WILL SERVE
TO MINIMIZE THE THREAT OF SHOWERS AND THUNDERSTORMS THE NEXT COUPLE
OF DAYS. HUMIDITIES WILL TREND DOWNWARD AS TEMPS SLOWLY CLIMB OVER
THE SOUTHERN HALF OF THE STATE HEADING INTO THE WEEKEND.

A NEW MONSOONAL SURGE MAY RETURN TO THE FIRE DISTRICTS BEGINNING
LATE IN THE UPCOMING WEEKEND. SOUTHERN UTAH COULD SEE A FAIRLY
SUBSTANTIAL INCREASE IN SHOWERS AND STORMS LATE SUNDAY...WITH THE
THREAT FOR PRECIP SPREADING QUICKLY NORTH EARLY IN THE WEEK. WETTING
RAINS...HIGHER HUMIDITIES AND COOLER TEMPS ARE ANTICIPATED FOR NEAR
NEXT WEEK.

&&

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

PUBLIC...HOSENFELD
FIRE WEATHER...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
519 AM MDT WED AUG 6 2014

UTZ001>016-019>021-517-518-WYZ021-071200-
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-
519 AM MDT WED AUG 6 2014

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

.DAY ONE...TODAY AND TONIGHT

SHOWERS AND THUNDERSTORMS WILL ONCE AGAIN DEVELOP ACROSS NORTHERN
PORTIONS OF THE OUTLOOK AREA TODAY INTO TONIGHT. SOME OF THESE
WILL PRODUCE BRIEF HEAVY RAIN. SCATTERED AFTERNOON AND EVENING
THUNDERSTORMS WILL ALSO DEVELOP OVER THE CENTRAL AND NORTHEASTERN
MOUNTAINS.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

SHOWERS AND THUNDERSTORMS WILL BE MORE WIDESPREAD THURSDAY WITH
THE BEST CHANCE ACROSS THE NORTHERN OUTLOOK AREA. THESE COULD
CONTINUE ACROSS THE NORTHEASTERN OUTLOOK AREA INTO FRIDAY.
ISOLATED MOUNTAIN STORMS ARE EXPECTED OVER THE WEEKEND.

MOISTURE WILL INCREASE FROM THE SOUTH AGAIN FOR THE FIRST PART OF
NEXT WEEK BRINGING A RENEWED THREAT OF HEAVY RAIN WITH
THUNDERSTORMS.

.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 ROAD TRAVEL IMPACTS VISIT...
HTTP://WWW.UDOTTRAFFIC.UTAH.GOV/ROADWEATHERFORECAST.ASPX

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
551 PM MDT WED AUG 06 2014

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

0200 PM     HAIL             WEST VALLEY CITY        40.69N 112.01W
08/06/2014  M1.00 INCH       SALT LAKE          UT   TRAINED SPOTTER

0245 PM     HEAVY RAIN       WEST VALLEY CITY        40.69N 112.01W
08/06/2014  M2.01 INCH       SALT LAKE          UT   TRAINED SPOTTER

            2.01 INCHES RECORDED IN 1 HOUR

&&

MPS

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
646 PM MDT WED AUG 6 2014

UTZ005-070115-
GREAT SALT LAKE DESERT AND MOUNTAINS UT-
646 PM MDT WED AUG 6 2014

...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN TOOELE COUNTY UNTIL
715 PM MDT...

AT 644 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 13 MILES SOUTHEAST OF WENDOVER...MOVING NORTHEAST
AT 25 MPH.

HALF INCH HAIL AND WINDS IN EXCESS OF 40 MPH WILL BE POSSIBLE.

THIS STORM WILL CROSS INTERSTATE 80 BETWEEN KNOLLS AND THE
BONNEVILLE SALT FLATS BETWEEN 7-715 PM. IF TRAVELING THIS SECTION OF
INTERSTATE 80 PREPARE FOR STRONG GUSTY CROSSWINDS AND DIMINISHED
VISIBILITY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF THREATENING WEATHER APPROACHES...TAKE SHELTER IN A STURDY
BUILDING.

TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY LEAD
TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.

&&

LAT...LON 4051 11369 4069 11392 4086 11360 4072 11334
TIME...MOT...LOC 0044Z 228DEG 23KT 4066 11380

GM