Severe Thunderstorm Warning 42, NWS Salt Lake City, UT

000 
WWUS55 KSLC 042116
SVSSLC

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
316 PM MDT SAT JUL 4 2009

UTC021-042145-
/O.CON.KSLC.SV.W.0042.000000T0000Z-090704T2145Z/
IRON UT-
316 PM MDT SAT JUL 4 2009

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 345 PM MDT
FOR CENTRAL IRON COUNTY...

AT 313 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS
LOCATED OVER CENTRAL IRON COUNTY...OR ABOUT 17 MILES NORTHWEST OF
CEDAR CITY...MOVING NORTHEAST AT 10 MPH.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  RURAL CENTRAL IRON COUNTY AROUND 330 PM MDT

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

LAT...LON 3774 11315 3784 11342 3813 11332 3801 11278
TIME...MOT...LOC 2115Z 211DEG 7KT 3785 11328

$$

CRK

000 
WWUS55 KSLC 042135
SVSSLC

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
335 PM MDT SAT JUL 4 2009

UTC021-042146-
/O.EXP.KSLC.SV.W.0042.000000T0000Z-090704T2145Z/
IRON UT-
335 PM MDT SAT JUL 4 2009

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL IRON COUNTY WILL
EXPIRE AT 345 PM MDT...

THE STORM HAS WEAKENED AND IS NO LONGER SEVERE. THEREFORE THE WARNING
HAS BEEN ALLOWED TO EXPIRE.

LAT...LON 3774 11315 3784 11342 3813 11332 3801 11278
TIME...MOT...LOC 2136Z 211DEG 7KT 3789 11325

$$

CRK

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
907 AM MDT SAT JUL 4 2009

.SYNOPSIS...WEAK DISTURBANCES WILL PASS OVER NORTHERN UTAH TODAY.
A DRIER AIRMASS WILL GRADUALLY SPREAD BACK INTO THE AREA FROM THE
WEST SUNDAY INTO NEXT WEEK.

&&

.DISCUSSION...ANOTHER SERIES OF DISTURBANCES WILL MOVE ACROSS THE
REGION TODAY INTO TONIGHT. PRECIPITABLE WATER VALUES HAVE FALLEN A
BIT SINCE YESTERDAY...WITH THE 12Z SOUNDING NEAR 0.95 INCHES. THIS
MORNINGS SOUNDING ALSO INDICATED AROUND 1200 J/KG OF CAPE WITH
LITTLE INHIBITION. EFFECTIVE SHEAR VALUES NEAR 30KTS ARE OCCURRING
ACROSS NORTHERN UTAH THIS MORNING AND THIS SHOULD CONTINUE INTO
THE AFTERNOON.

WITH THE COMBINATION OF MOISTURE...LIFT...INSTABILITY...AND SHEAR
EXPECT MORE ABUNDANT CONVECTION ACROSS THE NORTHERN HALF OF UTAH
THAN OCCURRED YESTERDAY. MAIN THREATS WILL CONTINUE TO BE SMALL
HAIL AND GUSTY WINDS IN ANY STORMS THAT MANAGE TO BECOME
ORGANIZED. HEAVY RAINFALL IS ALSO A POSSIBILITY TODAY...EVEN IN THE
SOUTH WHERE STORM MOTIONS WILL BE SLUGGISH. ANYONE VENTURING INTO
SLOT CANYONS OR DRY WASHES TODAY SHOULD CONTINUE TO MONITOR
WEATHER CONDITIONS.

HIGH PRESSURE WILL BUILD INTO THE AREA FOR SUNDAY...WITH
CONVECTION EXPECTED TO REMAIN ASSOCIATED WITH THE HIGHER TERRAIN
FOR THE END OF THE WEEKEND. HIGH PRESSURE WILL REMAIN IN PLACE FOR
MUCH OF THE NEXT WEEK...WITH 700MB TEMPERATURES REACHING NEAR 20C
BY FRIDAY. IF THIS VERIFIED...SALT LAKE CITY WOULD SEE
TEMPERATURES REACHING ABOVE 100F.

&&

.AVIATION...A WEAK WEATHER DISTURBANCE CURRENTLY NEAR THE NW UT/NV
BORDER AT MID-MORNING HAS SPREAD AN AREA OF LIGHT SHOWERS EAST TO
NEAR THE KSLC TERMINAL. CEILINGS THIS MORNING WILL GENERALLY REMAIN
ABOVE 10KFT...THOUGH BRIEFLY DROP TO NEAR 7KFT IN HEAVIER SHOWERS.

THUNDERSTORMS WILL MOVE NEAR THE TERMINAL AFTER 18Z. THE BEST THREAT
FOR STORMS WILL BE BETWEEN 19-01Z. LIGHT W-NW WINDS WILL DEVELOP
AFTER 19Z...WITH GUSTY AND ERRATIC WINDS ASSOCIATED WITH
THUNDERSTORMS.

&&

.FIRE WEATHER...ABUNDANT MOISTURE REMAINS OVER ALL BUT THE EXTREME
SW PORTION OF UTAH THIS MORNING. THE BEST THREAT FOR SHOWERS/STORMS
AND WETTING RAINS WILL REMAIN OVER NRN UTAH WHERE THE AIRMASS SHOWS
THE GREATEST INSTABILITY. THUNDERSTORMS OVER E/CNTRL THROUGH S/CNTRL
UTAH LOOKS TO BE ISOLATED IN COVERAGE WITH A MINIMAL THREAT FOR
WETTING RAINS. SOUTHWEST UTAH LOOKS TO BE DRY TODAY.

DRIER AIR WILL CONTINUE TO PRESS EAST ACROSS THE STATE TONIGHT AND
SUNDAY. LINGERING SHOWERS/STORMS POSSIBLE OVER THE NORTHEAST PORTION
OF THE STATE...WITH WARMER TEMPS AND LOW RH VALUES ACROSS THE REMAIN
OF THE STATE.

&&

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

&&

KRUSE/CONGER

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
246 AM MDT SAT JUL 4 2009

UTZ001>016-019>021-517-518-WYZ021-051200-
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-
246 AM MDT SAT JUL 4 2009

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

.DAY ONE...TODAY AND TONIGHT

ISOLATED TO SCATTERED AFTERNOON AND EVENING THUNDERSTORMS WILL BE
CAPABLE OF PRODUCING LOCALLY DAMAGING WINDS ACROSS THE STATE...AS
WELL AS LARGE HAIL PARTICULARLY ACROSS NORTHERN UTAH. LOCALLY
HEAVY RAINFALL IS ALSO EXPECTED WITH THE STRONGER STORMS.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

THE AIRMASS WILL THEN GRADUALLY DRY SUNDAY AND INTO EARLY NEXT
WEEK. GUSTY SOUTHERLY WINDS COULD DEVELOP BY MID WEEK...ESPECIALLY
ACROSS WESTERN AND SOUTH CENTRAL UTAH...POTENTIALLY AFFECTING WIND
SENSITIVE OPERATIONS.

SUMMER HEAT MAY BUILD INTO THE REGION AS EARLY AS FRIDAY.

.SPOTTER INFORMATION STATEMENT...

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

ROGOWSKI

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