Flash Flood Warning 40, NWS Salt Lake City, UT

000 
WGUS75 KSLC 191808
FFSSLC

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
1159 AM MDT FRI AUG 19 2005

UTC025-191900-
KANE UT-
1159 AM MDT FRI AUG 19 2005

...A FLASH FLOOD WARNING CONTINUES UNTIL 100 PM MDT FOR CENTRAL KANE
COUNTY...

AT 1152 AM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE INTENSE RAINFALL OVER THE WARNING AREA. 

THE MOST INTENT RAINFALL HAS MOVED OUT OF THE CENTRAL KANE COUNTY 
AREA...HOWEVER...ADDITIONAL RAINFALL IS EXPECTED AND WILL CONTRIBUTE 
TO THE HIGH FLOWS. FLOOD WATERS ARE EXPECTED TO CONTINUE THROUGH THE 
LOWER PARIA RIVER SYSTEM UNTIL LATER THIS AFTERNOON.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS
SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE.

LAT...LON 3700 11232 3700 11161 3734 11162 3733 11232

$$

MCINERNEY

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
320 AM MDT FRI AUG 19 2005

.SYNOPSIS...A WEAK UPPER LEVEL DISTURBANCE WILL MOVE ACROSS SOUTHERN
UTAH THIS AFTERNOON. HIGH PRESSURE WILL BUILD ACROSS THE REGION OVER
THE WEEKEND RESULTING IN A GRADUAL WARMING TREND.

&&

.DISCUSSION...EARLY MORNING WATER VAPOR IMAGERY AND OBJECTIVE UPPER
AIR ANALYSIS SHOW MEAN LONGWAVE TROUGH...ANCHORED AROUND UPPER LOW
CENTERED OVER SASKATCHEWAN...GRADUALLY TRANSLATING EASTWARD AWAY
FROM THE REGION WITH TRAILING MID LEVEL TROUGH AXIS EXTENDING BACK
INTO NORTHERN NV. 700MB BAROCLINIC ZONE REMAINS IN PLACE ACROSS
NORTHERN UT WITH ASSOCIATED SURFACE TROUGH/WIND SHIFT ROUGHLY ALONG
A VERNAL TO NEPHI LINE. RESIDUAL MOISTURE MAY ALLOW FOR A FEW
SHOWERS/THUNDERSTORMS TO DEVELOP IN THE VICINITY OF THIS RESIDUAL
BOUNDARY THIS AFTERNOON AND EVENING. MEANWHILE CLOSED CIRCULATION
WHICH WAS OFF CA COAST YESTERDAY CONTINUES TO SHEAR EAST TOWARDS THE
LOWER CO RIVER VALLEY. THIS FEATURE WILL CONTINUE TO TRANSLATE
EASTWARD TODAY AND WILL LIKELY INDUCE SCATTERED CONVECTION ACROSS
SOUTHERN UT THIS AFTERNOON. HOWEVER MOISTURE WILL REMAIN LIMITED
OVER THIS AREA AS GOES PW IMAGERY CONTINUES TO SHOW VALUES LESS THAN
.5 INCHES ACROSS SOUTHERN UT...WITH DEEPER MOISTURE REMAINING
FURTHER SOUTH OVER CENTRAL/SOUTHERN AZ.

AS MEAN TROUGH POSITION CONTINUES TO TRANSLATE EASTWARD TOWARDS THE
GREAT LAKES REGION...MID/UPPER RIDGE CURRENTLY ALONG PACIFIC COAST
IS PROGGED TO BUILD/AMPLIFY ACROSS THE REGION OVER THE WEEKEND. THIS
WILL ALLOW FOR A WARMING TREND THROUGH THE WEEKEND AND INTO EARLY
NEXT WEEK ACROSS THE FORECAST AREA. HOWEVER GFS/NAM INDICATE
MOISTURE WILL REMAIN SOMEWHAT LIMITED ACROSS THE FORECAST AREA
THROUGH THE WEEKEND (PW VALUES GENERALLY BELOW .75 INCHES) BUT
SUFFICIENT FOR AFTERNOON/EVENING CONVECTION PRIMARILY OVER HIGHER
TERRAIN. ANOTHER TROUGH IS FORECAST TO DEVELOP OVER THE PACIFIC
NORTHWEST MONDAY INTO TUESDAY...WHICH MAY IMPACT NORTHERN UT WITH
SLIGHTLY COOLER TEMPS BY MIDWEEK.

&&

.AVIATION...NONE. SEE SLCTAFSLC.

&&

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

&&

SEAMAN

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
605 AM MDT FRI AUG 19 2005

UTZ001>021-WYZ021-201200-
CACHE VALLEY/UTAH PORTION-CASTLE COUNTRY-
CENTRAL AND SOUTHWEST MOUNTAINS-
GLEN CANYON RECREATION AREA/LAKE POWELL-
GREAT SALT LAKE DESERT AND MOUNTAINS-HENRY MOUNTAINS-
NORTHERN WASATCH FRONT-SALT LAKE AND TOOELE VALLEYS-SAN RAFAEL SWELL-
SANPETE/SEVIER VALLEYS-SOUTH CENTRAL UTAH-SOUTHERN WASATCH FRONT-
SOUTHWEST UTAH-SOUTHWEST WYOMING-UTAHS DIXIE AND ZION NATIONAL PARK-
WASATCH MOUNTAIN VALLEYS-WASATCH MOUNTAINS I-80 NORTH-
WASATCH MOUNTAINS SOUTH OF I-80-WASATCH PLATEAU/BOOK CLIFFS-
WEST CENTRAL UTAH-WESTERN UINTA BASIN-WESTERN UINTA MOUNTAINS-
605 AM MDT FRI AUG 19 2005

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

.DAY ONE... TODAY

SCATTERED SHOWERS AND THUNDERSTORMS WILL BE POSSIBLE OVER THE
HIGHER TERRAIN OF UTAH AND FAR SOUTHWESTERN WYOMING THIS AFTERNOON
AND EVENING...WITH ISOLATED STORMS POSSIBLE OVER THE LOWER
ELEVATIONS.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

SCATTERED AFTERNOON AND EVENING THUNDERSTORMS WILL BE POSSIBLE OVER
THE MOUNTAINS THROUGH TUESDAY...WITH ISOLATED STORMS AFFECTING
ADJACENT VALLEY LOCATIONS.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.