Severe Thunderstorm Warning 38, NWS Salt Lake City, UT

104 
WWUS55 KSLC 160046
SVSSLC

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
646 PM MDT SUN SEP 15 2013

UTC017-160056-
/O.CAN.KSLC.SV.W.0038.000000T0000Z-130916T0115Z/
GARFIELD UT-
646 PM MDT SUN SEP 15 2013

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL GARFIELD COUNTY IS
CANCELLED...

THE STORM HAS WEAKENED AND IS NO LONGER SEVERE. THEREFORE THE WARNING
HAS BEEN CANCELLED.

LAT...LON 3771 11080 3772 11129 3791 11124 3796 11111
TIME...MOT...LOC 0046Z 312DEG 10KT 3781 11106

$$

ROGOWSKI

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
330 PM MDT SUN SEP 15 2013

.SYNOPSIS...A WEAKENING UPPER LEVEL LOW OVER NORTHERN UTAH WILL MOVE
OFF TO THE NORTHEAST DURING THE AFTERNOON. A DRIER AND WARMER
SOUTHWEST FLOW WILL SPREAD INTO THE AREA FOR MONDAY BEFORE A DRY
COLD FRONT ARRIVES MIDWEEK.

&&

.DISCUSSION...THE UPPER LEVEL LOW THAT HAS BEEN ACROSS THE REGION
FOR DAYS IS SLOWLY DEPARTING THE AREA. THE CENTER OF THE LOW
APPEARS TO BE NEARING THE UTAH/WYOMING BORDER AT THIS TIME. WATER
VAPOR IMAGERY SUGGESTS SEVERAL ADDITIONAL VORT MAXES ARE ROTATING
AROUND THE LOW THIS AFTERNOON. ANTICIPATE ANOTHER ROUND OF
CONVECTION ACROSS MUCH OF EASTERN UTAH MAINLY FROM THE
WASATCH/CENTRAL/SOUTHERN MOUNTAINS AND EAST THIS AFTERNOON.

SEVERAL DAYS OF MUCH DRIER CONDITIONS ARE ON TAP FOR THE
BEGINNING OF THE WEEK AS HIGH PRESSURE BUILDS INTO THE AREA ASIDE
FROM A FEW SHOWERS/THUNDERSTORMS ACROSS THE HIGHER TERRAIN. A
TROUGH WILL CROSS THE PACIFIC NORTHWEST TUESDAY...BRINGING A
LARGELY DRY COLD FRONT TO THE AREA LATER TUESDAY INTO WEDNESDAY.
THIS COLD FRONT IS EXPECTED TO COOL PARTS OF THE STATE 10 TO 15
DEGREES FROM TUESDAYS ABOVE NORMAL TEMPERATURES. PARTS OF THE
URBAN CORRIDOR MAY EVEN REACH THE UPPER 40S FOR THE FIRST TIME IN
A VERY LONG TIME.

HIGH PRESSURE WILL BUILD ACROSS THE AREA AGAIN THURSDAY INTO
FRIDAY...KEEPING FAIRLY DRY CONDITIONS ACROSS THE STATE. A WARMING
TREND CAN BE EXPECTED IN ASSOCIATION WITH THE RIDGE THROUGH THE
END OF THE WEEK. LARGELY DRY CONDITIONS ARE EXPECTED TO CONTINUE
INTO NEXT WEEKEND.

&&

.AVIATION...WINDS AT THE SLC TERMINAL ARE EXPECTED TO SHIFT TO THE
NORTHWEST BY 23Z THIS AFTERNOON...THOUGH THERE IS A 30 PERCENT
CHANCE THAT WINDS WILL STAY SOUTHERLY THROUGH THE DAY. THERE IS
THE POTENTIAL FOR GUSTY AND ERRATIC WINDS DUE TO THUNDERSTORM
OUTFLOW THROUGH 02Z.

&&

.FIRE WEATHER...THE UPPER LOW OVER UTAH/WYOMING BROUGHT
WIDESPREAD AND OFTEN HEAVY RAIN TO UTAH THE PAST SEVERAL DAYS WILL
FINALLY EXIT EAST OUT OF NORTHERN UTAH THIS EVENING. A
SIGNIFICANTLY DRIER...WARMER AND MORE STABLE AIRMASS WILL MOVE IN
ON AN INCREASING STRONG WEST-SOUTHWEST FLOW EARLY IN THE WEEK.
STRONG SOUTHERLY WINDS AND LOW HUMIDITIES ARE EXPECTED TUESDAY
AHEAD OF AN APPROACHING DRY COLD FRONT SCHEDULED TO ARRIVE TUESDAY
NIGHT/WEDNESDAY. HAZARDOUS FIRE WEATHER CONDITIONS ARE NOT
EXPECTED IN ANY OF THE FIRE DISTRICTS AS FUELS REMAIN MOIST FROM
THE RECENT HEAVY RAINS. THE DRY COLD FRONT WILL OFFER UP ONLY
MINIMAL CONVECTION ACROSS FAR NORTHERN UTAH TUESDAY NIGHT/EARLY
WEDNESDAY. MUCH COOLER AIR BEHIND THE FRONT WILL RACE SOUTH ACROSS
ALL FIRE DISTRICTS WEDNESDAY. A MILD SOUTHWEST FLOW ALOFT WILL
REBOUND QUICKLY FOR THE END OF THE WEEK.

&&

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

KRUSE/CONGER/HOSENFELD

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
506 AM MDT SUN SEP 15 2013

UTZ001>016-019>021-517-518-WYZ021-161230-
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-
506 AM MDT SUN SEP 15 2013

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

.DAY ONE...TODAY AND TONIGHT

SHOWERS AND THUNDERSTORMS WILL CONTINUE AT TIMES ACROSS MUCH OF
THE OUTLOOK AREA...BUT MOSTLY ACROSS THE MOUNTAINS AND
EAST...THROUGH EARLY THIS EVENING. LOCALLY HEAVY RAIN WILL
ACCOMPANY SOME OF THE STORMS WHICH COULD CONTINUE TO GENERATE
LOCAL FLASH FLOODING IN PRONE AREAS.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

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