Severe Thunderstorm Warning 40, NWS Salt Lake City, UT

000 
WWUS55 KSLC 101946
SVSSLC

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
146 PM MDT SUN AUG 10 2008

UTC017-102000-
/O.CON.KSLC.SV.W.0040.000000T0000Z-080810T2000Z/
GARFIELD UT-
146 PM MDT SUN AUG 10 2008

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 200 PM MDT
FOR CENTRAL GARFIELD COUNTY...

AT 142 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING NICKEL SIZE HAIL.
 THIS STORM WAS LOCATED OVER CENTRAL GARFIELD COUNTY...OR ABOUT 32
MILES SOUTHWEST OF HANKSVILLE...MOVING SOUTHEAST AT 12 MPH.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  THE BURR TRAIL IN THE CENTRAL PORTION OF CAPITOL REEF NATIONAL 
PARK AT 145 PM MDT

THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD
TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT 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 NUMBER ONE KILLERS.
REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE
STRUCK BY LIGHTNING.

LAT...LON 3806 11079 3777 11097 3799 11136 3814 11127
TIME...MOT...LOC 1946Z 305DEG 11KT 3798 11105

$$

MT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
1020 AM MDT SUN AUG 10 2008

.SYNOPSIS...WESTERLY FLOW ALOFT WILL BRING DRIER AIR TO THE REGION
TODAY THAT WILL LINGER THROUGH THE FIRST HALF OF THE WEEK. MOISTURE
WILL BEGIN TO RETURN TO THE SOUTH AROUND MID WEEK.

&&

.DISCUSSION...MAINLY CLEAR CONDITIONS ARE OCCURRING ACROSS THE CWA
THIS MORNING. SOME MID-LEVEL INSTABILITY CLOUDINESS WAS NOTED NEAR
THE SALT LAKE CITY AREA THIS MORNING...INDICATED THERE IS REMNANT
INSTABILITY ACROSS THE REGION.

THE LAST PIECE OF A PACIFIC TROUGH THAT HAS BEEN MOVING ACROSS THE
PACIFIC NORTHWEST OVER THE PAST FEW DAYS WILL MOVE THROUGH THE
NORTHERN INTERMOUNTAIN REGION THIS AFTERNOON AND EVENING. DEEP
MOISTURE WILL BE ON THE DECREASE ACROSS NORTHERN UTAH AS THE DAY
WEARS ON. EXPECT CONVECTION TO DEVELOP THIS AFTERNOON ACROSS
NORTHERN UTAH. GUSTY WINDS WILL BE THE MAIN THREAT WITH THESE
THUNDERSTORMS.

ACROSS THE SOUTH...MOISTURE CONTINUES TO DECREASE AS DOES
INSTABILITY. WITH THE TROUGH SO FAR TO THE NORTH...INITIATION OF
CONVECTION WILL LIKELY BE TIED TO TERRAIN TODAY...AT LEAST
INITIALLY. EXPECT A MINIMAL FLASH FLOOD THREAT ACROSS THE SOUTH TODAY.

EVEN DRIER CONDITIONS MOVE INTO THE REGION TOMORROW AND REMAIN
INTO AT LEAST MIDWEEK ACROSS MUCH OF UTAH. WILL WAIT FOR THE 12Z
GLOBAL MODEL SUITE BEFORE ADJUSTING LONG TERM GRIDS.

&&

.AVIATION...WINDS ARE EXPECTED TO REMAIN SOUTHEASTERLY AT THE SLC
TERMINAL UNTIL THE LAKE BREEZE SHIFTS WINDS TO THE NORTHWEST
BETWEEN 19-21Z. THERE IS A 10 PERCENT CHANCE OF THUNDERSTORMS NEAR
THE TERMINAL IN THE AFTERNOON THAT COULD RESULT IN GUSTY...ERRATIC
WINDS. VFR CONDITIONS ARE EXPECTED THROUGHOUT THE AFTERNOON.

&&

.FIRE WEATHER...DEEP SUB-TROPICAL MOISTURE WILL BE SHUNTED EAST OF
UTAH FOR THE NEXT FEW DAYS AS A WEST TO NORTHWEST FLOW TAKES OVER.
ISOLATED STORMS WILL STILL DEVELOP BUT WITH MUCH LESS LIGHTNING
COVERAGE AND RAINFALL AS WAS OBSERVED LAST WEEK. RELATIVE HUMIDITY
WILL BE TRENDING DOWN WITH HAINES INDEX TRENDING UP.

&&

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

&&

PUBLIC...KRUSE
FIRE WEATHER...GIBSON
AVIATION...HOSENFELD

FOR MORE INFORMATION FROM NOAA/S NATIONAL WEATHER SERVICE VISIT...
HTTP://WEATHER.GOV/SALTLAKECITY (ALL LOWER CASE)

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
133 PM MDT SAT AUG 9 2008

UTZ001>016-019>021-517-518-WYZ021-101000-
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-
133 PM MDT SAT AUG 9 2008

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

.DAY ONE...TODAY AND TONIGHT

DEEP MOISTURE REMAINS IN PLACE ACROSS THE EASTERN PORTIONS OF THE
OUTLOOK AREA TODAY WITH DRIER AIR BEGINNING TO SPREAD INTO THE
WEST. SHOWERS AND THUNDERSTORMS WILL ONCE AGAIN DEVELOP OVER MOST OF
THE AREA.

SHOWERS AND THUNDERSTORMS WILL DECREASE THIS EVENING BUT ISOLATED
STORMS COULD CONTINUE OVER THE NORTH OVERNIGHT.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

THE AIRMASS ACROSS THE OUTLOOK AREA ON SUNDAY WILL BE DRIER AND
ONLY ISOLATED THUNDERSTORMS ARE EXPECTED OVER THE NORTHERN AND
EASTERN VALLEYS WHILE STORMS WILL BE SCATTERED OVER THE
MOUNTAINS.

THUNDERSTORM ACTIVITY WILL BE LIMITED TO ISOLATED SMALL STORMS
OVER THE MOUNTAINS BY MONDAY AFTERNOON WITH SIMILAR DRY CONDITIONS
TUESDAY.

MOISTURE MAY START TO SPREAD BACK INTO SOUTHERN UTAH ON WEDNESDAY
AND CREEP NORTH INTO CENTRAL UTAH THROUGH FRIDAY.

.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)