Flash Flood Warning 5, NWS Salt Lake City, UT

000 
WGUS75 KSLC 150022
FFSSLC

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
617 PM MDT MON JUL 14 2008

UTC025-053-150200-
/O.CON.KSLC.FF.W.0005.000000T0000Z-080715T0200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WASHINGTON UT-KANE UT-
617 PM MDT MON JUL 14 2008

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 800 PM MDT FOR WEST
CENTRAL KANE AND EAST CENTRAL WASHINGTON COUNTIES...

AT 612 PM MDT...REPORTS OF SIGNIFICANT RIVER RISES ON THE HEADWATER 
AREAS OF THE NORTH FORK VIRGIN RIVER WERE REPORTED BY PARK 
OFFICIALS.  ADDITIONALLY...HEAVY RAINFALL CONTINUES OVER THE EAST 
FORK OF THE VIRGIN RIVER AS IT ENTERS THE ZION PARK BOUNDARY FROM 
THE EAST.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY.

FLOODING IS OCCURRING OR IS IMMINENT IN THESE AREAS. IT IS IMPORTANT 
TO KNOW WHERE YOU ARE RELATIVE TO STREAMS...RIVERS...OR CREEKS WHICH 
CAN BECOME KILLERS IN HEAVY RAINS. CAMPERS AND HIKERS SHOULD AVOID 
STREAMS OR CREEKS IN THESE AREAS.

LAT...LON 3727 11317 3736 11319 3735 11284 3724 11282
      3715 11302 3720 11321

$$

MCINERNEY

000 
WGUS75 KSLC 150154
FFSSLC

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
752 PM MDT MON JUL 14 2008

UTC025-053-150202-
/O.EXP.KSLC.FF.W.0005.000000T0000Z-080715T0200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WASHINGTON UT-KANE UT-
752 PM MDT MON JUL 14 2008

...THE FLASH FLOOD WARNING WILL EXPIRE AT 800 PM MDT FOR WEST CENTRAL
KANE AND EAST CENTRAL WASHINGTON COUNTIES...

FLOOD WATERS THAT COURSED THROUGH THE NORTH FORK OF THE VIRGIN RIVER 
HAVE SUBSIDED.  HOWEVER...BE CAREFUL AS WATERWAYS IN THIS AREA WILL 
CONTINUE TO DEWATER THROUGH THE NIGHTTIME HOURS.  USE CAUTION WHEN 
MOVING THROUGH THESE AREAS FOR THE REMAINDER OF THE EVENING.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE 
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS 
SAFELY.

LAT...LON 3727 11317 3736 11319 3735 11284 3724 11282
      3715 11302 3720 11321

$$

MCINERNEY

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
330 PM MDT MON JUL 14 2008

.SYNOPSIS...WITH HIGH PRESSURE ALOFT...SUBTROPICAL MOISTURE AND WEAK
DISTURBANCES WILL MOVE NORTHWARD...AFFECTING SOUTHERN UTAH TONIGHT
AND MUCH OF THE REGION DURING THE TUESDAY THROUGH THURSDAY PERIOD.

&&

.DISCUSSION...BAND OF MID AND HIGH CLOUDINESS REMAINS ACROSS CENTRAL
UTAH THIS AFTERNOON.  MUCH DEEPER MOISTURE REMAINS IN PLACE OVER
SOUTHERN UTAH...WHERE CONVECTION HAS BEEN INCREASING IN AREAL
COVERAGE AND INTENSITY PAST COUPLE OF HOURS.

AS PROGGED...MOISTURE AND INSTABILITY AXIS REMAINS IN PLACE FROM
NORTHERN LAKE POWELL REGION TO GRAND STAIRCASE TO THE PINE
MOUNTAINS...WITH CONVECTIVE ACTIVITY FOCUSED IN THIS AREA.  WITH
VERY WEAK FLOW THROUGH THE MID LEVELS...THUNDERSTORMS WILL SHOW
LITTLE MOVEMENT THROUGH THE EVENING HOURS.  HEAVY RAIN REMAINS THE
PRIMARY CONCERN FROM THESE THUNDERSTORMS.

PATTERN CHANGES ON TUESDAY AS A SYSTEM OVER CALIFORNIA WILL LIFT
NORTHEAST WHILE A WAVE IN THE WESTERLIES SLIDES ACROSS THE NORTHERN
PORTION OF THE REGION.  GFS AND NAM HAVE CONTINUED TO INDICATE SOME
STRENGTHENING OF A DEVELOPING SOUTHWEST FLOW...DRAWING MOISTURE
NORTHWARD AND EASTWARD.  WITH INCREASING MOISTURE AND
INSTABILITY...ISOLATED TO SCATTERED THUNDERSTORM ACTIVITY EXPECTED
ACROSS ALL BUT NORTHEAST CORNER OF FORECAST AREA BY TUESDAY EVENING.
WITH INCREASING SHEAR...COULD SEE A COUPLE OF SEVERE THUNDERSTORMS
ACROSS NORTHWEST DESERTS.  HEAVY RAIN WILL CONTINUE TO BE THE
PRIMARY CONCERN ACROSS SOUTHERN UTAH AS DEEP MOISTURE REMAINS IN
PLACE.  SIMILAR STORY INDICATED FOR WEDNESDAY...THOUGH DRY AIR
ADVECTING INTO NORTHWEST CORNER MAY LIMIT CONVECTION THERE.

MODELS SOLUTIONS DIVERGE HEADING INTO THE WEEKEND AS ECMWF INDICATES
RIDGE BUILDING BACK ACROSS AREA...WHILE GFS FAVORS A NEARLY ZONAL
FLOW ACROSS THE REGION...WITH A SERIES OF WEAK DISTURBANCES MOVING
THROUGH.  OPERATIONAL RUN OF GFS SEEMS TO BE AN OUTLIER FROM MOST OF
THE GFS ENSEMBLE FAMILY MEMBERS...SO ECMWF SOLUTION FAVORED.  ECMWF
DOES INDICATE A PACIFIC WAVE MOVING INTO THE REGION VERY LATE IN THE
FORECAST PERIOD.

&&

.AVIATION...VFR CONDITIONS WILL PREVAIL AT THE SLC TERMINAL THROUGH
THE EVENING UNDER MOSTLY CLEAR SKIES. NORTHWEST WINDS ARE EXPECTED
TO SHIFT TO THE SOUTHEAST BETWEEN 03Z AND 04Z.

&&

.FIRE WEATHER...THE ABUNDANT MOISTURE OVER THE SRN TWO THIRDS OF
UTAH HAS SPAWNED SCATTERED SHOWERS AND THUNDERSTORMS ACROSS THE SRN
TIER OF THE STATE THIS AFTERNOON. THESE SHOWERS AND STORMS HAVE BEEN
CONFINED TO THE HIGHER TERRAIN AND ARE NOT MOVING MUCH. THIS WAS
RESULTING IN WETTING RAINS WITH THE MORE DEVELOPED CONVECTION.

CNTRL UTAH HAS SEEN PLENTY OF CLOUD COVER AND HIGHER RH VALUES...BUT
HAS NOT SEEN SHOWERS AND STORMS KICK OFF AS OF YET THIS AFTERNOON.
MAY SEE ISOLATED STORMS FORM BY EARLY THIS EVENING...BUT DOUBT THEY
WILL PERSIST MUCH INTO THE EVENING. NRN UTAH HAS SEEN A DRY AND
STABLE NW FLOW ALOFT WHICH HAS SHUT DOWN CONVECTION ALTOGETHER THIS
AFTERNOON.

A RETURNING SOUTHERLY FLOW ALOFT WILL DEVELOP ACROSS NV AND WRN UT
TUESDAY. THIS FLOW WILL BRING MOISTURE INTO THE NORTH AND KEEP THE
REMAINDER OF THE STATE MOIST INTO WEDNESDAY. DRIER AIR WILL WORK
INTO NW UTAH THURSDAY...THEN SPREAD SOUTH AND EAST ACROSS THE STATE
BY EARLY IN THE WEEKEND.

&&

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

&&

AVIATION...TRAPHAGAN
FIRE WEATHER...CONGER
PUBLIC...BARJENBRUCH

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
415 AM MDT MON JUL 14 2008

UTZ001>016-019>021-517-518-WYZ021-151130-
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-
415 AM MDT MON JUL 14 2008

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

.DAY ONE...TODAY AND TONIGHT

A MOIST AIRMASS WILL REMAIN OVER SOUTHERN UTAH...ALLOWING FOR
AFTERNOON AND EVENING SHOWERS AND THUNDERSTORMS. SOME OF THESE
STORMS WILL BE CAPABLE OF PRODUCING LOCALLY HEAVY RAIN. LESS
MOISTURE ACROSS CENTRAL UTAH WILL RESULT IN ISOLATED SHOWERS
AND THUNDERSTORMS.

THE AIRMASS OVER NORTHERN UTAH WILL REMAIN DRY WITH PARTLY TO MOSTLY
SUNNY SKIES.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

SUBTROPICAL MOISTURE WILL SPREAD INTO NORTHERN UTAH ON TUESDAY. THIS
IS EXPECTED TO RESULT IN MORE WIDESPREAD COVERAGE OF SHOWERS AND
THUNDERSTORMS ACROSS THE AREA. SOME THUNDERSTORMS COULD HAVE STRONG
WINDS IN THE NORTH AND LOCALLY HEAVY RAIN IN CENTRAL AND SOUTHERN
UTAH. LOCALLY HEAVY RAIN IS ALSO POSSIBLE IN THE NORTH ON WEDNESDAY.
SOME DRYING OF THE AIRMASS IS EXPECTED LATE IN THE WEEK BUT MOISTURE
COULD RETURN NORTHWARD BY SUNDAY.

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

TARDY

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