Flash Flood Warning 6, NWS Salt Lake City, UT

000 
WGUS75 KSLC 032133
FFSSLC

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
311 PM MDT FRI JUN 3 2005

UTC015-017-025-037-039-041-055-040115-
SAN JUAN UT-GARFIELD UT-WAYNE UT-EMERY UT-SEVIER UT-SANPETE UT-
KANE UT-
330 PM MDT FRI JUN 3 2005

...A FLASH FLOOD WARNING CONTINUES UNTIL 715 PM MDT FOR NORTHEASTERN
KANE...SOUTHEASTERN SANPETE...EASTERN SEVIER...SOUTHERN EMERY...
WAYNE...EASTERN GARFIELD AND WEST CENTRAL SAN JUAN COUNTIES...

HEAVY RUNOFF FROM LAST NIGHTS RAINFALL IS CURRENTLY FLOWING THROUGH 
SLOT CANYONS...DRY WASHES...SMALL STREAMS AND RIVERS IN THE WARNING
AREA. THE SAN RAFAEL RIVER NEAR GREEN RIVER IS FLOWING AT 1723 CFS. 
PRIOR TO THE RAINFALL THE RIVER WAS AT 900 CFS. DEER CREEK NEAR 
BOULDER IS FLOWING AT 208 CFS...AND PRIOR TO THE RAINFALL WAS AT 15 
CFS. THESE RISES ARE INDICATIVE OF MANY WATERWAYS IN THE AREA.

ADDITIONALLY...A MUDSLIDE HAS CLOSED STATE ROAD 14 ABOVE CEDAR CITY. 
THE MUDSLIDE HAS DIVERTED COAL CREEK...WHICH PEAKED AT OVER 1367 CFS 
DUE MAINLY FROM RAINFALL...INTO STATE ROAD 14 AND ERODED ENOUGH 
MATERIAL TO CLOSE THE ROAD. FLOOD FLOW ON COAL CREEK IS 1500 CFS. 
THIS RECENT HIGH FLOW IS THE PEAK FLOW FOR THIS YEAR.

THE STORM RUNOFF IN THE WARNING AREA WILL FLOW AT HIGH LEVELS 
THROUGHOUT THE EVENING HOURS. IT IS POSSIBLE THAT SOME OF THE LONGER 
WATERWAYS WILL REMAIN AT VERY HIGH LEVELS THROUGHOUT THE NIGHT.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE
UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS
SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

FLOODING IS OCCURRING OR IS IMMINENT. 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.

LAT...LON 3763 11171 3709 11094 3861 10987 3900 11071
      3912 11137 3878 11173

$$

MCINERNEY

000 
WGUS75 KSLC 040116
FFSSLC

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
715 PM MDT FRI JUN 3 2005

UTC015-017-025-037-039-041-055-040400-
SAN JUAN UT-GARFIELD UT-WAYNE UT-EMERY UT-SEVIER UT-SANPETE UT-
KANE UT-
715 PM MDT FRI JUN 3 2005

...FLASH FLOOD WARNING HAS EXPIRED...

THE NATIONAL WEATHER SERVICE HAS ALLOWED THE FLASH FLOOD WARNING FOR 
PORTIONS OF SOUTHERN UTAH TO EXPIRE. FLOW WITHIN SMALLER CREEKS AND 
SLOT CANYONS HAS CRESTED AND WILL SLOWLY SUBSIDE OVERNIGHT. THE 
FLOW IN THE LARGER RIVERS AND CREEKS SUCH AS MUDDY CREEK...THE SAN 
RAFAEL RIVER AND ESCALANTE RIVER WILL REMAIN HIGH THROUGH THIS 
EVENING THEN BEGIN TO SUBSIDE AFTER MIDNIGHT.

USE CAUTION TRAVELING TONIGHT OR RECREATING NEAR THESE RIVERS AND 
CREEKS  AND THROUGHOUT THE BACKCOUNTRY OF SOUTHERN UTAH. ROADS MAY 
STILL BE IMPASSABLE FROM TODAYS FLOODING AND NORMALLY DRY WASHES MAY 
STILL HAVE FLOWING WATER OR EVEN BE IMPASSABLE THROUGH TONIGHT.

$$

GIBSON

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
1055 AM MDT FRI JUN 3 2005

.SYNOPSIS...AN UPPER LEVEL TROUGH OVER THE GREAT BASIN WILL PIVOT
EAST TODAY AND TONIGHT....FOLLOWED BY A HIGH PRESSURE RIDGE FOR THE
WEEKEND.

&&

.DISCUSSION...THE UPPER LEVEL TROUGH AXIS RESPONSIBLE FOR THE COOL
AND WET WEATHER OVER MAINLY THE CENTRAL AND SOUTHEAST BASICALLY
DISSECTS THE STATE AT THIS TIME.  W/V IMAGERY CLEARLY SHOWS THE
CENTER OF THE LOW TO BE JUST WEST OF HANKSVILLE...AND MOVING EAST.
THE FRONTAL BOUNDARY ASSOCIATED WITH THIS TROUGH HAS PUSHED ITS WAY
THROUGH MOST OF THE STATE.  DYNAMICS MOVING THROUGH THIS BOUNDARY
WERE RESPONSIBLE FOR SOME HEAVY RAINFALL AMOUNTS IN THE SOUTH
OVERNIGHT...SEE SLCPNSSLC FOR THE LATEST STORM TOTALS.  STILL PLENTY
OF PRECIP LEFT WITH THIS WAVE AS IT CONTINUES TO MOVE EAST TODAY.
EXTENSIVE COMMA HEAD COVERS MOST OF CENTRAL AND EASTERN UTAH WITH
SOME EMBEDDED LIGHTNING STRIKES.

MODELS PUT THE TROUGH AXIS OVER THE UTAH-COLORADO LINE BY 00Z SO
EXPECT GRADUAL CLEARING AND LOWER POPS TO MAKE THEIR WAY AT LEAST
INTO CENTRAL UTAH BY THIS AFTERNOON.  WENT AHEAD AND BUMPED POPS UP
OVER THE EAST GIVEN THE SOLID CLOUD COVER AND GOOD LIFT WRAPPING
AROUND THE SYSTEM.  ALSO LOWERED MAX TEMPERATURES IN THE EAST.
MOISTURE WILL WRAP AROUND IN NORTHWEST FLOW ALONG THE SOUTHWEST I-15
CORRIDOR...WHICH MAY SLOW ANY CLEARING UP AGAINST THE WEST SLOPES OF
THE MOUNTAINS.

FOR WEST AND NORTH...BACK EDGE OF CLOUD SHIELD IS ON A LINE FROM
SOUTHWEST WYOMING...THEN INTO SOUTHWEST UTAH.  STILL SOME SLIGHTLY
UNSTABLE AIR OVER THIS AREA SO...ALTHOUGH THE CLOUD COVER HAS BEEN
LESSONED ALONG THE WASATCH FRONT...LEFT ISOLATED TRW- IN THE
FORECAST TO ACCOUNT FOR THE POSSIBILITY SOME AFTERNOON BUBBLES
MAINLY MOVING OFF THE HIGHER TERRAIN.

WARMER AND DRIER RECOVERY STILL ON TAP FOR THE WEEKEND IN BETWEEN
SYSTEMS...THEN BROAD UPPER LEVEL TROUGH PARKS OVER THE AREA FOR A
NEXT WEEK.  GFS BRINGS THE FRONT THROUGH THE NORTH DURING THE DAY
MONDAY AND IT BECOMES STATIONARY THERE THROUGH AT LEAST MIDWEEK.
THIS WILL PRODUCE WET AND COOL WEATHER OVER THE AT LEAST THE
NORTHERN HALF OF UTAH DURING THIS TIME AS RIPPLES IN THE WESTERLIES
RIDE OVER THIS BOUNDARY.  THE BOUNDARY THEN WASHES OUT IN SOUTHERLY
FLOW BY THE END OF THE WEEK WHEN THE WESTERN TROUGH DEEPENS AND
CLOSES OFF OVER THE DESERT SOUTHWEST.

UPDATED FORECAST TO INCREASE POPS AND LOWER TEMPS IN THE
SOUTHEAST...AND BRUSH UP THE SKY COVER IN THE NORTHWEST QUARTER OF
THE STATE.

&&

.HYDRO...HEAVY RAIN OVERNIGHT RESULTED IN A SIGNIFICANT RISE ON THE
SEVIER AT HATCH.  THIS RAIN LIKELY CAUSED TRIBUTARY RISES AS WELL.
LATEST FLOOD WARNING DETAILS THE SPECIFIC NUMBERS.  WITH SOME WRAP
AROUND PRECIP STILL OVER THE AREA...WILL CONTINUE TO MONITOR SMALL
STREAMS AND CREEKS ACROSS SOUTHERN UTAH FOR POTENTIAL FLOODING THIS
AFTERNOON.  HAVE LET THE FLOOD WATCH IN THE NORTH EXPIRE DUE TO
REDUCED SNOWPACK AND COOLER TEMPERATURES.

&&

.AVIATION...NONE...SEE SLCTAFSLC.

&&

.SLC WATCHES/WARNINGS/ADVISORIES...
UT...FLOOD WARNING SEVIER RIVER FROM HEADWATERS TO AURORA.
WY...NONE.

JACKSON

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
950 AM MDT FRI JUN 3 2005

UTZ001>021-WYZ021-041200-
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-
950 AM MDT FRI JUN 3 2005

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

.DAY ONE... TODAY

A FLOOD WARNING CONTINUES FOR THE SEVIER RIVER BETWEEN HATCH AND
PIUTE RESERVOIR. SEE THE LATEST STATEMENTS FOR DETAILS.

.DAYS TWO THROUGH SEVEN... SATURDAY THROUGH THURSDAY

ANOTHER PACIFIC STORM WILL MOVE IN THE WEST COAST ON SUNDAY...
WITH MODERATE TO STRONG SOUTHERLY WINDS DEVELOPING ACROSS MUCH OF
WESTERN UTAH. MUCH COOLER AIR WILL MOVE INTO THE STATE MONDAY
AFTERNOON INTO TUESDAY. ADDITIONAL PRECIPITATION IS EXPECTED
MONDAY AND TUESDAY ACROSS NORTHERN UTAH.

WINDY CONDITIONS AND LOW HUMIDITY WILL INCREASE FIRE WEATHER DANGER
IN SOUTHWEST UTAH FROM SUNDAY INTO TUESDAY.

AOT