AVALANCHE WARNING
Issue Date: 1124 AM PST MON DEC 14 2009
Expiration: 1200 PM PST SUN DEC 20 2009

...AVALANCHE WARNING MONDAY NIGHT AND TUESDAY...
COLD WEATHER THE PAST WEEK GENERALLY CREATED WEAK SURFACE SNOW
LAYERS. A FRONT SHOULD CAUSE INCREASING STRONG WINDS...INCREASING
MODERATE TO HEAVY SNOW AND WARMING TEMPERATURES MONDAY AFTERNOON AND
NIGHT. THIS SHOULD BUILD INCREASING DEEP UNSTABLE LAYERS ON SOME
SLOPES. NATURAL OR TRIGGERED AVALANCHES SHOULD BECOME LIKELY MONDAY
NIGHT AND TO PERSIST TUESDAY MORNING.
ANOTHER FRONT IS CURRENTLY EXPECTED TO CAUSE RENEWED HIGH AVALANCHE
DANGER TUESDAY AFTERNOON AND TUESDAY NIGHT.
THIS STATEMENT WILL BE UPDATED AS CONDITIONS WARRANT. PLEASE VISIT
WWW.NWAC.US FOR DETAILS.
$$
BACKCOUNTRY TRAVELERS SHOULD BE AWARE THAT ELEVATION AND
GEOGRAPHIC DISTINCTIONS ARE APPROXIMATE AND THAT A TRANSITION
ZONE BETWEEN DANGERS EXISTS.  REMEMBER THERE ARE AVALANCHE SAFE
AREAS IN THE MOUNTAINS DURING ALL LEVELS OF AVALANCHE DANGER.
CONTACT LOCAL AUTHORITIES IN YOUR AREA OF INTEREST FOR FURTHER
INFORMATION.
NWAC WEATHER DATA AND FORECASTS ARE ALSO AVAILABLE BY CALLING
206-526-6677 FOR WASHINGTON, 503-808-2400 FOR THE MT HOOD AREA,
OR BY VISITING OUR WEB SITE AT WWW.NWAC.US.
FERBER/NORTHWEST WEATHER AND AVALANCHE CENTER
$$

WINTER STORM WARNING
Issue Date: 418 AM PST MON DEC 14 2009
Expiration: 600 PM PST TUE DEC 15 2009

...WINTER STORM WARNING IN EFFECT FROM 4 PM THIS AFTERNOON TO
6 PM PST TUESDAY...
THE NATIONAL WEATHER SERVICE IN SEATTLE HAS ISSUED A WINTER STORM
WARNING FOR HEAVY SNOW...WHICH IS IN EFFECT FROM 4 PM THIS AFTERNOON
TO 6 PM PST TUESDAY. THE WINTER STORM WATCH IS NO LONGER IN
EFFECT.
* TOTAL SNOWFALL ACCUMULATIONS OF 1 TO 3 FEET ARE ANTICIPATED
LATE THIS AFTERNOON THROUGH TUESDAY AFTERNOON.
* THE SNOW LEVEL WILL START OUT BELOW 1000 FEET TODAY AND RISE TO
AROUND 2000 FT TONIGHT. BY LATE TUESDAY AFTERNOON...THE SNOW
LEVEL WILL GENERALLY BE IN THE 3500 TO 4500 FOOT RANGE. THE
EXCEPTION WILL BE THE PASSES WHERE COLD...EASTERLY FLOW WILL
KEEP THE SNOW LEVEL AT THE SURFACE.
* GUSTY WINDS ARE EXPECTED ACROSS THOSE AREAS EXPOSED TO SOUTH TO
SOUTHWEST WINDS.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A WINTER STORM WARNING FOR HEAVY SNOW MEANS SIGNIFICANT SNOWFALL
IS OCCURRING OR IMMINENT. SIGNIFICANT AMOUNTS OF SNOW WILL MAKE
TRAVEL HAZARDOUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST...KEEP
FLASHLIGHTS...FOOD...WATER...AND BLANKETS IN YOUR VEHICLE IN CASE
OF AN EMERGENCY.
$$

WINTER STORM WATCH
Issue Date: 315 PM PST SUN DEC 13 2009
Expiration: 600 PM PST TUE DEC 15 2009

...WINTER STORM WATCH IN EFFECT FOR THE OLYMPIC AND CASCADES FROM
MONDAY EVENING THROUGH TUESDAY AFTERNOON...
THE NATIONAL WEATHER SERVICE IN SEATTLE HAS ISSUED A WINTER STORM
WATCH...WHICH IS IN EFFECT FROM MONDAY EVENING THROUGH TUESDAY
AFTERNOON.
* TOTAL SNOWFALL ACCUMULATIONS OF 9 TO 16 INCHES OF ANTICIPATED
DURING THE MONDAY NIGHT THROUGH TUESDAY TIME FRAME. HOWEVER
THERE IS THE POSSIBILITY OF LOCAL AMOUNTS UP TO 2
FEET...ESPECIALLY ON THE SOUTHWEST FACING SLOPES OF THE
OLYMPICS.
* THE SNOW SNOW LEVEL WILL START OUT QUITE LOW MONDAY NIGHT OR
GENERALLY BELOW 1000 FEET...EXCEPT IN THE 1500 TO 2500 FOOT
RANGE OVER THE CENTRAL CASCADES. BY LATE TUESDAY AFTERNOON...THE
SNOW LEVEL WILL GENERALLY BE IN THE 3500 TO 4500 FOOT RANGE. THE
EXCEPTION WILL BE THE PASSES WHERE COLD...EASTERLY FLOW WILL
KEEP THE SNOW LEVEL BELOW PASS LEVEL.
* GUSTY WINDS ARE EXPECTED ACROSS THOSE AREAS EXPOSED TO SOUTH
WINDS.
* ALTHOUGH THERE WILL BE SOME SNOW DURING THE DAY MONDAY...THE
MORE SIGNIFICANT SNOW WILL HOLD OFF UNTIL MONDAY NIGHT. A LULL
IN THE ACTIVITY IS EXPECTED LATE MONDAY NIGHT THROUGH TUESDAY
MORNING BUT THE SNOWFALL RATES WILL INCREASE BY TUESDAY
AFTERNOON AS ANOTHER PACIFIC STORMS MOVES INTO THE AREA.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A WINTER STORM WATCH MEANS CONDITIONS ARE FAVORABLE FOR SEVERE
WINTER WEATHER. IF YOU MUST TRAVEL IN THE CASCADES...CARRY AN
EXTRA FLASHLIGHT...FOOD...WATER...AND BLANKETS IN CASE OF
EMERGENCY.
$$
WWW.WEATHER.GOV