WINTER WEATHER ADVISORY
Issue Date: 319 AM PST TUE DEC 15 2009
Expiration: 1000 AM PST TUE DEC 15 2009

...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 10 AM PST THIS
MORNING FOR THE WESTERN COLUMBIA RIVER GORGE...
THE WINTER WEATHER ADVISORY FOR FREEZING RAIN AND SNOW IS NOW IN
EFFECT UNTIL 10 AM PST THIS MORNING.
* FROM CASCADE LOCKS EASTWARD SNOW WILL CHANGE OVER TO FREEZING
RAIN THIS MORNING...AND EVENTUALLY TO RAIN BY LATE MORNING.
* WEST OF CASCADE LOCKS PRECIPITATION WILL REMAIN PRIMARILY
RAIN...ALTHOUGH ISOLATED PATCHES OF FREEZING RAIN ARE POSSIBLE
THROUGH 7 AM.
* ADDITIONAL SNOW ACCUMULATION OF 1 TO 2 INCHES IS POSSIBLE THIS
MORNING FROM CASCADE LOCKS EAST. ICE ACCUMULATIONS ARE EXPECTED
TO BE LESS THAN 1/4 INCH.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
AND FREEZING RAIN WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE
PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE
CAUTION WHILE DRIVING.
$$

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.
$$
BACKCOUNTRY TRAVELERS SHOULD BE AWARE THAT ELEVATION AND
GEOGRAPHIC DISTINCTIONS ARE APPROXIMATE AND THAT A TRANSITION
ZONE BETWEEN DANGERS EXISTS.  REMEMBER THERE ARE AVALANCHE SAFE
AREAS IN THE MOUNTAINS DURING ALL LEVELS OF AVALANCHE DANGER.
CONTACT LOCAL AUTHORITIES IN YOUR AREA OF INTEREST FOR FURTHER
INFORMATION.
NWAC WEATHER DATA AND FORECASTS ARE ALSO AVAILABLE BY CALLING
206-526-6677 FOR WASHINGTON, 503-808-2400 FOR THE MT HOOD AREA,
OR BY VISITING OUR WEB SITE AT WWW.NWAC.US.
FERBER/NORTHWEST WEATHER AND AVALANCHE CENTER
$$

HAZARDOUS WEATHER OUTLOOK
Issue Date: 606 AM PST MON DEC 14 2009
Expiration: 615 AM PST TUE DEC 15 2009

Expires:200912151415;;
FLUS46 KPQR 141405
HWOPQR
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE PORTLAND OR
605 AM PST MON DEC 14 2009
ORZ001>014-WAZ019>023-039-040-151415-
NORTH OREGON COAST-CENTRAL OREGON COAST-
COAST RANGE OF NORTHWEST OREGON-
CENTRAL COAST RANGE OF WESTERN OREGON-LOWER COLUMBIA-
GREATER PORTLAND METRO AREA-CENTRAL WILLAMETTE VALLEY-
SOUTH WILLAMETTE VALLEY-WESTERN COLUMBIA RIVER GORGE-
NORTHERN OREGON CASCADE FOOTHILLS-NORTHERN OREGON CASCADES-
CASCADE FOOTHILLS IN LANE COUNTY-CASCADES IN LANE COUNTY-
UPPER HOOD RIVER VALLEY-SOUTH WASHINGTON CASCADES-WILLAPA HILLS-
SOUTH WASHINGTON COAST-I-5 CORRIDOR IN COWLITZ COUNTY-
GREATER VANCOUVER AREA-SOUTH WASHINGTON CASCADE FOOTHILLS-
605 AM PST MON DEC 14 2009
THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHWEST
OREGON AND SOUTHWEST WASHINGTON.
.DAY ONE...TODAY AND TONIGHT
A STRONG PACIFIC FRONTAL SYSTEM WILL BRING A VARIETY OF HAZARDOUS
WEATHER THIS AFTERNOON THROUGH TONIGHT. ALONG THE OREGON COAST
SOUTHERLY WINDS WILL GUST TO 60 TO 70 MPH ALONG EXPOSED BEACHES
AND HEADLANDS. HEAVY SNOW WILL FALL IN THE CASCADES WITH A MIX OF
RAIN..FREEZING RAIN AND SNOW POSSIBLE IN THE GORGE.
.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY
STRONG WINDS POSSIBLE ALONG THE COAST AGAIN TUESDAY AFTERNOON AND
EVENING. ADDITIONAL FRONTAL SYSTEMS WILL MOVE INLAND THROUGH THE
WEEK WITH THE POTENTIAL FOR MORE WIND AND RAIN.
.SPOTTER INFORMATION STATEMENT...
WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.
$$

WINTER STORM WARNING
Issue Date: 349 AM PST MON DEC 14 2009
Expiration: 1000 AM PST TUE DEC 15 2009

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM PST EARLY
THIS MORNING FOR THE SOUTH WASHINGTON AND THE NORTH OREGON
CASCADES FROM MOUNT JEFFERSON NORTHWARD...
...WINTER STORM WARNING IN EFFECT FROM 4 PM THIS AFTERNOON TO 10
AM PST TUESDAY FOR THE SOUTH WASHINGTON AND THE NORTH OREGON
CASCADES...
THE NATIONAL WEATHER SERVICE IN PORTLAND HAS ISSUED A WINTER
STORM WARNING FOR HEAVY SNOW...WHICH IS IN EFFECT FROM 4 PM THIS
AFTERNOON TO 10 AM PST TUESDAY. THE WINTER STORM WATCH IS NO
LONGER IN EFFECT. A WINTER WEATHER ADVISORY REMAINS IN EFFECT
UNTIL 6 AM PST EARLY THIS MORNING.
* SNOW SHOWERS WILL CONTINUE THROUGH THE EARLY MORNING HOURS THEN
TAPER OFF AROUND SUNRISE. SNOW WILL BEGIN FALLING AGAIN THIS
AFTERNOON AROUND 4 PM. SNOWFALL WILL BECOME HEAVY AROUND 8 PM
IN THE EVENING AND CONTINUE THROUGH TUESDAY MORNING.
* SNOW ACCUMULATIONS OF 4 TO 8 INCHES ARE POSSIBLE FROM MOUNT
JEFFERSON NORTHWARD THROUGH THIS MORNING. AN ADDITIONAL 12 TO 18
INCHES OF SNOW WILL FALL BETWEEN 4 PM THIS AFTERNOON AND TUESDAY
MORNING.
* THE SNOW LEVELS BETWEEN 500 AND 1000 FEET THIS MORNING WILL
INCREASE TO 1500 FT NORTH AND 2000 FT SOUTH THIS AFTERNOON. SNOW
LEVELS WILL RISE TO 4000 FT IN THE NORTH AND 500O FT IN THE
SOUTH ON TUESDAY.
* STRONG SOUTH TO SOUTHWEST WINDS OF 30 TO 40 MPH MAY CAUSE
BLOWING AND DRIFTING SNOW TONIGHT AND TUESDAY. GUSTS OF 50 TO
60 MPH ARE POSSIBLE ON EXPOSED RIDGES AND PEAKS.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING.  SIGNIFICANT AMOUNTS OF
SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN
AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...
FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY.
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.
$$

WINTER STORM WATCH
Issue Date: 626 PM PST SUN DEC 13 2009
Expiration: 300 PM PST TUE DEC 15 2009

...WINTER STORM WATCH IN EFFECT FROM MONDAY AFTERNOON THROUGH
TUESDAY AFTERNOON FOR THE WESTERN COLUMBIA RIVER GORGE AND THE
UPPER HOOD RIVER VALLEY...
THE NATIONAL WEATHER SERVICE IN PORTLAND HAS ISSUED A WINTER
STORM WATCH FOR SNOW AND FREEZING RAIN...WHICH IS IN EFFECT FROM
MONDAY AFTERNOON THROUGH TUESDAY AFTERNOON.
* RAIN...SNOW OR FREEZING RAIN WILL BEGIN FALLING LATE MONDAY AND
TURN TO MOSTLY SNOW AND FREEZING RAIN MONDAY NIGHT...THEN MOSTLY
FREEZING RAIN TUESDAY MORNING...AND THEN DECREASE.
* TOTAL SNOW ACCUMULATION OF 2 TO 4 INCHES IS POSSIBLE...WITH THE
GREATEST ACCUMULATIONS NEAR HOOD RIVER AND CASCADE LOCKS BEFORE
THE CHANGE TO MOSTLY FREEZING RAIN.
* EAST WINDS OF 15 TO 25 MPH WITH GUSTS TO 35 MPH MAY CAUSE LOCAL
BLOWING SNOW MONDAY NIGHT.
* TRAVEL THROUGH THE WESTERN COLUMBIA RIVER GORGE MAY BE VERY
DIFFICULT MONDAY NIGHT AND TUESDAY DUE TO THE EXPECTED ICY
CONDITIONS.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A WINTER STORM WATCH MEANS THERE IS A POTENTIAL FOR SIGNIFICANT
SNOW...SLEET...OR ICE ACCUMULATIONS THAT MAY IMPACT TRAVEL.
CONTINUE TO MONITOR THE LATEST FORECASTS.
$$
FOR ADDITIONAL WEATHER INFORMATION...VISIT OUR WEB SITE AT
WWW.WEATHER.GOV/PORTLAND