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Hazardous Weather Outlook

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SPOKANE WA
324 PM PST FRI DEC 19 2014

WAZ042-202330-
EAST SLOPES NORTHERN CASCADES-
324 PM PST FRI DEC 19 2014

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTH CENTRAL
WASHINGTON.

.DAY ONE...THIS AFTERNOON AND TONIGHT

LIGHT SNOW WILL INCREASE LATE TONIGHT.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

A ROBUST AND WET PACIFIC STORM SYSTEM WILL BRING MODERATE TO
LOCALLY HEAVY SNOW TO THE MOUNTAINS...WITH MODERATE SNOW POSSIBLE
IN THE VALLEYS. CONFIDENCE IS HIGH IN THE MOUNTAINS AND
SIGNIFICANT TRAVEL IMPACTS ARE EXPECTED. A SECOND STORM SYSTEM
WILL BRING THE POTENTIAL FOR MODERATE MOUNTAIN SNOWS WITHIN THE
TUESDAY NIGHT THROUGH WEDNESDAY NIGHT TIME-FRAME. THERE IS LOW TO
MODERATE CONFIDENCE REGARDING THE DETAILS OF THE CHRISTMAS EVE
STORM.


$$



Winter Weather Advisory

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SPOKANE WA
313 PM PST FRI DEC 19 2014

WAZ042-201400-
/O.NEW.KOTX.WW.Y.0032.141220T1200Z-141221T0700Z/
EAST SLOPES NORTHERN CASCADES-
INCLUDING THE FOLLOWING LOCATIONS...LEAVENWORTH...MAZAMA...
TWISP...WINTHROP...STEHEKIN...CONCONULLY...BLEWETT PASS...
LOUP LOUP PASS
313 PM PST FRI DEC 19 2014

...WINTER WEATHER ADVISORY IN EFFECT FROM 4 AM TO 11 PM PST
SATURDAY...

THE NATIONAL WEATHER SERVICE IN SPOKANE HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT FROM 4 AM TO 11 PM
PST SATURDAY.

* LOCATIONS...LEAVENWORTH...MAZAMA...TWISP...WINTHROP...
  STEHEKIN...CONCONULLY...BLEWETT PASS...LOUP LOUP PASS.

* SNOW ACCUMULATIONS...4 TO 9 INCHES OF SNOW IN THE VALLEYS AND IN
  THE MOUNTAINS 8 TO 16 INCHES. LOCALLY HEAVIER AMOUNTS ARE
  EXPECTED NEAR THE CREST NORTH OF LAKE CHELAN.

* TIMING...THE SNOW WILL BEGIN TO FALL BY EARLY SATURDAY MORNING
  AND CONTINUE AT TIMES THROUGH SATURDAY NIGHT. THE SNOW WILL
  BEGIN TO TAPER OFF LATE SATURDAY NIGHT...HOWEVER ADDITIONAL SNOW
  SHOWERS ARE STILL EXPECTED OVER THE HIGHER MOUNTAINS THROUGH
  MOST OF SUNDAY.

* IMPACTS...THE SNOW WILL RESULT IN POTENTIALLY HAZARDOUS TRAVEL
  CONDITIONS. THIS WILL IMPACT MOST OF THE MOUNTAINS PASSES...INCLUDING
  HIGHWAY 2 OVER STEVENS PASS AS WELL BLEWETT PASS.

* SNOW LEVEL...INITIALLY ON THE VALLEY FLOORS...BUT STEADILY
  RISING TO 4000 FEET OR HIGHER SOUTH OF LAKE CHELAN AND UP TO
  2500-3000 FEET NORTH OF LAKE CHELAN.

* WEB PAGE: FOR A DETAILED VIEW OF THE HAZARD AREA VISIT
  HTTP://WWW.WRH.NOAA.GOV/WRH/WHV/?WFO=OTX.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW
COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE
DRIVING.

&&

$$



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Page last modified: May 16, 2007
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