Flash Flood Warning 2, NWS Salt Lake City, UT

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SALT LAKE CITY
530 AM MST WED FEB 19 1986

...HIGH WIND WARNING FOR WESTERN VALLEYS AND MOUNTAINS OF UTAH TODAY...

A STRONG WEST TO SOUTHWEST FLOW ALOFT CONTINUES OVER THE WESTERN STATES
AND IS CAUSING STRONG GUSTY WINDS IN THE WESTERN VALLEYS AND MOUNTAINS
OF UTAH.. ESPECIALLY THROUGH EAST TO WEST CANYONS OF NORTHERN UTAH.
SUSTAINED WINDS TO 40 MPH WITH GUSTS RANGING FROM 60 TO 70 MPH HAVE BEEN
REPORTED IN THE NORTHERN UTAH  MOUNTAINS AND CONDITIONS ARE FAVORABLE
FOR STRONG GUSTY WINDS ACROSS MOST OF THE MOUNTAINOUS AREAS OF UTAH
TODAY.

MANY WESTERN VALLYES ARE ALSO HAVING STRONG GUSTY WINDS THIS MORNING...
RANGING FROM 30 TO 40 MPH WITH SOME REPORTS OF GUSTS TO 60 MPH.  BY
LATER THIS MORNING MOST WESTERN VALLEYS WILL HAVE SUSTAINED WINDS FROM
30 TO 45 MPH WITH HIGHER GUSTS.  THUS...THIS HIGH WIND WARNING IS BEING
ISSUED FOR WESTERN VALLEYS AND MOUNTAINS OF THE STATE OF UTAH.

PEOPLE DRIVING HIGH PROFILE VEHICLES SHOULD BE AWARE OF THESE STRONG
WINDS...ESPECIALLY WHEN TRAVELING THROUGH THE MOUNTAINS AND ALONG EAST
TO WEST ROADWAYS.

IN ADDITION TO STRONG GUSTY WINDS...THE FLOW ALOFT CONTINUES TO BRING
VERY MOIST AIR OVER UTAH.  THERE WILL BE PERIODS OF RAIN WITH SNOW ABOVE
ABOUT 8000 FEET TODAY.  WITH RAIN FALLING ON ALL READY SATURATED SOILS
THERE MAY BE PROBLEMS ALONG THE WEBER RIVER AGAIN TODAY.

WITH THE SOILS THROUGHOUT NORTHERN UTAH ALREADY SATURATED...THE ADDED
RAINS AND LOWER ELEVATION SNOWMELT WILL ACT AS A TRIGGER FOR MUDSLIDES
AND DEBRIS FLOW IN FAVORED AREAS.  SOME SMALL STREAM AND POOLING OF
WATER IS ALSO POSSIBLE.

AN AVALANCHE WARNING WITH AN "EXTREME" HAZARD STILL EXISTS IN THE
BACK COUNTRY OF THE WASATCH MOUNTAINS FROM SPANISH FORK CANYON TO
THE UTAH/IDAHO BORDER.  THE SNOWPACK IS STILL EXTREMELY UNSTABLE
AND ADDITIONAL WARM RAINS AND HIGH DENSITY SNOW WILL COMPOUND THE
ALREADY SERIOUS SITUATION.

FURTHER STATEMENTS WILL BE ISSUED A#S NEEDED.

GWB 1234Z

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SALT LAKE CITY
700 AM MST WED FEB 19 1986

      ...SMALL STREAM AND URBAN FLOOD STATEMENT....

A STRONG BAND OF RAIN ACTIVITY ASSOCIATED WITH A COLD FRONT IS
CURRENTLY MOVING INTO NORTHWEST UTAH. RAINS IN SOUTHERN IDAHO
AND NORTHERN NEVADA HAVE BEEN MODERATE DURING THE NIGHT. THIS
FRONTAL ZONE OF WEATHER WILL PROGRESS SOUTHWARD ALONG THE WASATCH
FRONT AND WASATCH MOUNTAINS DURING THE MORNING HOURS WITH
PRECIPITATION LIKELY TO CONTINUE INTO THE AFTERNOON.

MODERATE TO LOCALIZED HEAVY RAINS ARE POSSIBLE THROUGH ALL OF
NORTHWEST UTAH AND THE WASATCH MOUNTAINS WILL FURTHER AGGRAVATE
THE FLOODING SCENARIO. THE SOILS ARE SATURATED AND THE ADDITIONAL
RAINFALL WILL COMPOUND THE RUNOFF. THE SNOW LEVEL WILL REMAIN
ABOUT 8000 FEET THIS MORNING LOWERING TO ABOUT 7000 FEET AROUND
NOON. THIS ADDED MOISTURE WILL AGAIN ASSIST IN MELTING THE LOWER
ELEVATION SNOW.

FLOODING IS LIKELY ALONG SMALL STREAM AND IRRIGATION DITCHES WITH
WIDESPREAD POOLING OF WATER IN LOW LYING AREAS. THE COUNTIES WHERE
THIS CONCERN IS THE GREATEST ARE CACHE.. BOX ELDER.. WEBER.. MORGAN
NORTH DAVIS AND WASATCH. BASEMENT FLOODING IS ALSO POSSIBLE WHERE
THE SOILS ARE VERY WET.

THE WEBER RIVER IS NOW WELL BELOW FLOOD STATE AND FLOWING AT 2800
CFS.. FLOOD STAGE IN SOME AREAS ALONG THE WEBER RIVER IS 4200 CFS.
ADDED RAINFALL IN THE HIGHER VALLEYS THAT FEED THE WEBER COULD
INCREASE THE FLOW DRAMATICALLY ON THE WEBER RIVER LATER THIS MORNING
AND AFTERNOON. THIS SITUATION WILL BE MONITORED VERY CLOSELY.

SANDBAGS ARE AVAILABLE FROM COUNTY COMPREHENSIVE EMERGENCY PERSONNEL.
THOSE THAT LIVE IN FLOOD PRONE AREAS OR HAVE HAD FLOODING IN THE
PAST FEW DAYS SHOULD }BE ALERT TO THIS POTENTIAL SERIOUS SITUATION.

FURTHER STATEMENTS WILL BE ISSUED AS NEEDED.

DDH/WJA 1356Z...