Severe Thunderstorm Warning 10, NWS Salt Lake City, UT

145 
WWUS55 KSLC 181947
SVSSLC

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
147 PM MDT MON MAY 18 2015

UTC045-182000-
/O.CON.KSLC.SV.W.0010.000000T0000Z-150518T2000Z/
TOOELE UT-
147 PM MDT MON MAY 18 2015

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 200 PM MDT
FOR NORTHWESTERN TOOELE COUNTY...

AT 146 PM MDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE
OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS 
LOCATED JUST SOUTH OF KNOLLS...OR 34 MILES EAST OF WENDOVER...MOVING 
NORTHWEST AT 25 MPH. NICKEL SIZE HAIL MAY ALSO ACCOMPANY THE 
DAMAGING WINDS. THE STORM WILL CROSS INTERSTATE 80 BY 200 PM.

LOCATIONS IMPACTED INCLUDE...
INTERSTATE 80 WEST OF KNOLLS.

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.

DOPPLER RADAR HAS INDICATED SOME WEAK ROTATION WITHIN THIS STORM.
ALTHOUGH A TORNADO IS NOT IMMEDIATELY LIKELY...IF ONE IS SPOTTED...
ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A STURDY STRUCTURE...
SUCH AS A BASEMENT OR SMALL INTERIOR ROOM.

IF YOU ARE IN THE PATH OF THIS STORM...PREPARE IMMEDIATELY FOR LARGE
HAIL AND DEADLY CLOUD TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE
TO A SHELTER...PREFERABLY INSIDE A STRONG BUILDING AND AWAY FROM
WINDOWS.

IF YOU ARE IN THE PATH OF THIS STORM...PREPARE IMMEDIATELY FOR LARGE
HAIL AND DAMAGING WINDS. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING AND AWAY FROM WINDOWS.

IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...CONTINUOUS CLOUD TO
GROUND LIGHTNING IS OCCURRING WITH THIS STORM.  MOVE INDOORS
IMMEDIATELY! LIGHTNING IS ONE OF NATURES LEADING KILLERS. REMEMBER...
IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY
LIGHTNING.

&&

LAT...LON 4060 11315 4048 11333 4072 11367 4089 11340
TIME...MOT...LOC 1946Z 139DEG 21KT 4065 11337 

$$

MT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
1030 AM MDT MON MAY 18 2015

.SYNOPSIS...A STORM SYSTEM OVER CENTRAL CALIFORNIA THIS MORNING WILL
MOVE INTO UTAH FROM THE SOUTHWEST AND IMPACT THE STATE LATER
TODAY THROUGH TOMORROW. THE NEXT STORM SYSTEM WILL ARRIVE LATE IN
THE WEEK AND IMPACT MUCH OF UTAH THROUGH AT LEAST THE FIRST HALF
OF THE WEEKEND.

&&

.DISCUSSION...AN AMOEBA SHAPED LOW WITH MULTIPLE CENTERS IS OVER
CALIFORNIA AND NEVADA THIS MORNING. ONE OF THE CENTERS...LOBE OF
ENERGY...IS MOVING ACROSS SRN NEVADA THIS MORNING HELPING TO
PRODUCE LIFT OVER SOUTHWEST UTAH. SATELLITE SHOWING COOLING CLOUD
TOPS OVER THIS WITH RADAR FILLING IN AS WELL. HAVE INCREASED POPS
FOR THIS AREA A LITTLE THIS MORNING...ALTHOUGH MOST OF THE RAIN
HAS BEEN ALOFT AND NOT REACHING THE GROUND...WHICH IS DUE TO A
RELATIVELY DRY LOWER LAYER. THIS SHOULD CHANGE AS LATE MORNING
AND DAY PROGRESSES. ALSO THE DYNAMICS WILL INCREASE THIS AFTERNOON
OVER MOST OF THE CWA AS THE FLOW ALOFT BECOMES DIFFLUENT. HAVE
KEPT PREVIOUS FORECAST OF NUMEROUS SHOWERS AND SCATTERED
THUNDERSTORMS ACROSS THE AREA BUT AS ALWAYS THERE WILL BE SOME
AREAS THAT WILL GET MORE ACTIVITY THAN OTHERS BUT TOO HARD TO FIND
THESE SUBTLETIES AT THIS TIME.

DECREASED SKY COVER FOR THIS MORNING OVER THE NORTH AS WELL AS
SHOWER ACTIVITY BUT REST OF PACKAGE LOOKS IN GOOD SHAPE.

&&

.AVIATION...THE SALT LAKE CITY TERMINAL WILL LIKELY BE IMPACTED BY
SCATTERED SHOWERS AND THUNDERSTORMS FORMING OVER NORTHERN UTAH AFTER
18Z. GUSTY ERRATIC WINDS ARE THE MOST LIKELY IMPACT...WITH PERIODS
OF CEILINGS BELOW 7000FT OR BRIEF MVFR CONDITIONS ALSO POSSIBLE WITH
SHOWERS PASSING DIRECTLY OVERHEAD. IN PART DUE TO THESE SHOWERS THE
WIND FORECAST IS RELATIVELY LOW CONFIDENCE...BUT THE MOST LIKELY
SCENARIO IS FOR WINDS TO SWITCH TO THE SOUTH BETWEEN 16Z AND
18Z...AND REMAIN SOUTH THROUGH MUCH OF THE DAY.

&&

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

PUBLIC...STRUTHWOLF
AVIATION...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
302 AM MDT MON MAY 18 2015

UTZ001>016-019>021-517-518-WYZ021-191300-
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-
302 AM MDT MON MAY 18 2015

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

.DAY ONE...TODAY AND TONIGHT

NUMEROUS SHOWERS AND SCATTERED THUNDERSTORMS ARE EXPECTED TODAY
AND TONIGHT. THE STRONGEST ACTIVITY WILL HAVE THE POTENTIAL TO
BRING LOCALLY HEAVY RAINFALL...GUSTY WINDS AND SMALL HAIL. PERIODS
OF ACCUMULATING SNOWFALL CAN BE EXPECTED ABOVE NINE THOUSAND FEET.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

IT WILL REMAIN STORMY TUESDAY...BUT BEGIN TO THIN OUT MID WEEK.

THE NEXT COOL AND WET STORM IS EXPECTED THURSDAY INTO THE HOLIDAY
WEEKEND.

.SPOTTER INFORMATION STATEMENT...

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

ROGOWSKI/WILENSKY

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