Winter Weather Advisory

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE PENDLETON OR
243 PM PDT TUE MAY 21 2013

...LATE SPRING STORM TO BRING SNOW TO THE BLUE MOUNTAINS TONIGHT...

.A UNSEASONABLY COLD LOW PRESSURE SYSTEM WILL REMAIN OVER THE AREA
TONIGHT AND OVER THE NEXT FEW DAYS. THIS SYSTEM IS COLD ENOUGH FOR
SNOW TO FALL AT ELEVATIONS ABOVE 300O FEET WITH ACCUMULATING SNOW
ABOVE 4000 FEET TONIGHT.

ORZ502-503-WAZ030-220600-
/O.NEW.KPDT.WW.Y.0014.130522T0400Z-130522T1700Z/
NORTHERN BLUE MOUNTAINS OF OREGON-
SOUTHERN BLUE MOUNTAINS OF OREGON-
NORTHWEST BLUE MOUNTAINS OF WASHINGTON-
INCLUDING THE CITIES OF...TOLLGATE...SKI BLUEWOOD RESORT
243 PM PDT TUE MAY 21 2013

...WINTER WEATHER ADVISORY IN EFFECT FROM 9 PM THIS EVENING TO
10 AM PDT WEDNESDAY ABOVE 4000 FEET...

THE NATIONAL WEATHER SERVICE IN PENDLETON HAS ISSUED A WINTER
WEATHER ADVISORY ABOVE 4000 FEET FOR SNOW WHICH IS IN EFFECT FROM
9 PM THIS EVENING TO 10 AM PDT WEDNESDAY.

* SNOW ACCUMULATIONS: 2-4 INCHES ABOVE 4000 FEET WITH UP TO 2
  INCHES POSSIBLE AT LOCATIONS BETWEEN 3000 AND 4000 FEET.

* ELEVATION: ABOVE 4000 FEET.

* TIMING: SNOW SHOWERS WILL DEVELOP OVERNIGHT WITH ACCUMULATING
  SNOW DURING THE EARLY MORNING HOURS.

* LOCATIONS INCLUDE: SKI BLUEWOOD RESORT...TOLLGATE

* WINDS: SOUTH WIND 10 TO 15 MPH

* IMPACTS: INTERSTATE 84 AND OREGON HIGHWAY 204 WILL HAVE SNOW IN
  PLACES AND MAY BECOME SLIPPERY BY MORNING.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY IS ISSUED WHEN SNOW IS OCCURRING OR IS
EXPECTED TO DEVELOP AND ACCUMULATE. TRAVEL MAY BE
HAZARDOUS...ESPECIALLY ON BRIDGES...OVERPASSES...AND SECONDARY
ROADS. MOTORISTS ARE URGED TO USE EXTREME CAUTION...AND SLOW DOWN
TO ADJUST FOR RAPIDLY CHANGING DRIVING CONDITIONS AND REDUCED
VISIBILITIES. FOR ADDITIONAL WEATHER INFORMATION...CHECK OUR WEB
SITE AT WWW.WEATHER.GOV/PENDLETON.


&&

$$

Wind Advisory

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MEDFORD OR
928 AM PDT TUE MAY 21 2013

...FREEZING TEMPERATURES POSSIBLE WEDNESDAY MORNING...

.AN UNSEASONABLY COLD UPPER LEVEL LOW PRESSURE SYSTEM WILL MOVE
INTO THE AREA ON TUESDAY. TUESDAY NIGHT THROUGH WEDNESDAY MORNING
ANY PARTIAL CLEARING WOULD ALLOW TEMPERATURES TO FALL TO OR BELOW
FREEZING IN AND NEAR THE SHASTA VALLEY. BELOW FREEZING
TEMPERATURES ARE EXPECTED IN THE KLAMATH AND TULELAKE AREAS AS
WELL.

CAZ085-ORZ030-031-220030-
/O.CON.KMFR.WI.Y.0010.130521T1900Z-130522T0300Z/
MODOC COUNTY-
NORTHERN AND EASTERN KLAMATH COUNTY AND WESTERN LAKE COUNTY-
CENTRAL AND EASTERN LAKE COUNTY-
928 AM PDT TUE MAY 21 2013

...WIND ADVISORY REMAINS IN EFFECT UNTIL 8 PM PDT THIS EVENING...

A WIND ADVISORY REMAINS IN EFFECT UNTIL 8 PM PDT THIS EVENING.

* WINDS...WEST 25 TO 35 MPH WITH GUST TO 40 TO 55 MPH.

* TIMING...THIS AFTERNOON INTO THIS EVENING.

* LOCATIONS INCLUDE: THE HIGHEST ELEVATIONS OF LAKE...KLAMATH...
   AND MODOC COUNTIES...AND THE AREA AROUND SUMMER LAKE.

* IMPACTS...THE STRONGEST WINDS ARE EXPECTED ALONG HIGHWAY 31
  BETWEEN PAISLEY AND SILVER LAKE...AS WELL AS PORTIONS OF
  HIGHWAYS 140 AND 395 IN SOUTHEAST OREGON...AND HIGHWAY 299
  IN NORTHEAST CALIFORNIA.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY MEANS THAT WINDS OF 35 MPH ARE EXPECTED WITH
HIGHER GUSTS POSSIBLE. WINDS THIS STRONG CAN MAKE DRIVING
DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA
CAUTION.

&&

$$


CC

Special Weather Statement

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MISSOULA MT
527 PM MDT TUE MAY 21 2013

IDZ005>007-220015-
NORTHERN CLEARWATER MOUNTAINS-OROFINO/GRANGEVILLE REGION-SOUTHERN
CLEARWATER MOUNTAINS-
427 PM PDT TUE MAY 21 2013

...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL CLEARWATER AND NORTHERN
IDAHO COUNTIES UNTIL 515 PM PDT...

AT 418 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
STRONG THUNDERSTORM 10 MILES NORTHEAST OF KOOSKIA...OR 11 MILES EAST
OF KAMIAH...MOVING NORTHEAST AT 35 MPH.

WIND GUSTS UP TO 40 MPH ARE EXPECTED WITH THIS STORM.

LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...WEIPPE...PIERCE...
MUSSELSHELL...JAYPE AND CARDIFF.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF THREATENING WEATHER APPROACHES YOUR AREA...GO INDOORS AND STAY
AWAY FROM WINDOWS. IF YOU ARE CAUGHT OUTSIDE...MOVE TO A WELL
PROTECTED AREA.

&&

LAT...LON 4680 11570 4664 11507 4612 11558 4627 11603
TIME...MOT...LOC 2327Z 210DEG 31KT 4628 11574

$$

ZUMPFE

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MEDFORD OR
413 PM PDT TUE MAY 21 2013

CAZ080>085-ORZ021>031-220900-
WESTERN SISKIYOU COUNTY-CENTRAL SISKIYOU COUNTY-
SOUTH CENTRAL SISKIYOU COUNTY-
NORTH CENTRAL AND SOUTHEAST SISKIYOU COUNTY-
NORTHEAST SISKIYOU AND NORTHWEST MODOC COUNTIES-MODOC COUNTY-
SOUTH CENTRAL OREGON COAST-CURRY COUNTY COAST-
CENTRAL DOUGLAS COUNTY-EASTERN CURRY COUNTY AND JOSEPHINE COUNTY-
EASTERN DOUGLAS COUNTY FOOTHILLS-JACKSON COUNTY-
SOUTH CENTRAL OREGON CASCADES-
SISKIYOU MOUNTAINS AND SOUTHERN OREGON CASCADES-KLAMATH BASIN-
NORTHERN AND EASTERN KLAMATH COUNTY AND WESTERN LAKE COUNTY-
CENTRAL AND EASTERN LAKE COUNTY-
INCLUDING THE CITIES OF...ETNA...FORT JONES...GREENVIEW...YREKA...
WEED...MOUNT SHASTA...DUNSMUIR...MCCLOUD...TENNANT...TULELAKE...
DORRIS...ALTURAS...COOS BAY...NORTH BEND...REEDSPORT...BANDON...
PORT ORFORD...COQUILLE...BROOKINGS...HARBOR...GOLD BEACH...
DRAIN...ELKTON...ROSEBURG...SUTHERLIN...GREEN...MYRTLE CREEK...
CANYONVILLE...GLENDALE...GRANTS PASS...CAVE JUNCTION...
STEAMBOAT...TOKETEE FALLS...MEDFORD...ASHLAND...CRATER LAKE...
CRESCENT LAKE...DIAMOND LAKE...UNION CREEK...HOWARD PRAIRIE...
SISKIYOU SUMMIT...ALTAMONT...KLAMATH FALLS...BEATTY...BLY...
CHEMULT...CRESCENT...GILCHRIST...SPRAGUE RIVER...LAKEVIEW
413 PM PDT TUE MAY 21 2013

A FRONT IS MOVING THROUGH THE AREA THIS AFTERNOON AND EVENING.
WIDESPREAD SHOWERS ARE EXPECTED...ESPECIALLY WEST OF THE CASCADES.
SHOWERS MAY CONTAIN SMALL HAIL AND STRONG WINDS. VERY GUSTY WINDS
WILL CONTINUE INTO THE EVENING. BEHIND THE FRONT...A COLD SHOWERY
AIR MASS WILL REMAIN IN PLACE TONIGHT THROUGH WEDNESDAY. ALSO
TEMPERATURES WILL FALL SHARPLY TONIGHT AND WEDNESDAY MORNING.

SNOW LEVELS ARE EXPECTED TO DROP TO AROUND 2600 FEET BY TONIGHT.
COLD SHOWERS WILL BRING 3 TO 6 INCHES OF SNOW TO ALL SOUTHERN
OREGON CASCADE PASSES AND 1 TO 3 INCHES OVER SISKIYOU SUMMIT. SNOW
AMOUNTS OF 3 TO 6 INCHES ARE POSSIBLE ON THE HIGHER PORTIONS OF
BEAR CAMP ROAD. STATE ROUTE 46 TO THE OREGON CAVES MAY ALSO SEE
SEVERAL INCHES OF SNOW. OVERNIGHT SNOW LEVELS MAY DROP BRIEFLY
DOWN TO LOWER PASSES LIKE SEXTON SUMMIT AS WELL. HOWEVER...WITH
THE LONGER DAYS AND HIGHER SUN ANGLES...SOIL AND ROAD TEMPERATURES
ARE QUITE WARM AND SNOW MAY MELT QUICKLY...ESPECIALLY BELOW 3500
FEET ELEVATION.

COLD NIGHTTIME TEMPERATURES WILL BRING BELOW FREEZING TEMPERATURES
EAST OF THE CASCADES TONIGHT AND WEDNESDAY NIGHT. TEMPERATURES IN
PLACES EAST OF THE CASCADES MAY DROP INTO THE MID TO LOWER
20S...POSSIBLY CAUSING UNPROTECTED EXPOSED PIPES TO BURST. WEST OF
THE CASCADES TEMPERATURES ARE EXPECTED TO LOWER IN THE MID 30S FOR
MANY LOCATIONS TONIGHT AND AROUND FREEZING IN THE SHASTA VALLEY.

STAY TUNED TO YOUR LOCAL NATIONAL WEATHER SERVICE FORECASTS FOR
UPDATES AS THE SYSTEM PROGRESSES.

$$

CC/TRW

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SEATTLE WA
456 AM PDT TUE MAY 21 2013

WAZ513-518-519-220030-
OLYMPICS-WEST SLOPES NORTHERN CASCADES AND PASSES-
WEST SLOPES CENTRAL CASCADES AND PASSES-
456 AM PDT TUE MAY 21 2013

...A CHANGE TO COLD AND WET WEATHER IN THE MOUNTAINS WILL START
TODAY AND CONTINUE THROUGH THE WEEK...

COLD AIR WILL MOVE INTO WESTERN WASHINGTON TODAY AND WILL REMAIN
OVER THE AREA THROUGH THE END OF THE WEEK. THE SNOW LEVELS WILL
FALL TO 4500 FEET THIS MORNING AND TO 3500 FEET TONIGHT AND
WEDNESDAY.

SNOW WILL ACCUMULATE AT TIMES AT HIGH ELEVATIONS THIS AFTERNOON
THROUGH WEDNESDAY OR THURSDAY. HIGHER HIGHWAY PASSES THAT HAVE
OPENED FOR THE SUMMER...INCLUDING RAINY PASS AND CHINOOK PASS...
WILL LIKELY GET A FEW TO SEVERAL INCHES OF SNOW. STEVENS AND WHITE
PASSES COULD ALSO GET SOME SNOW. LITTLE OR NO SNOWFALL IS FORECAST
FOR SNOQUALMIE PASS.

HIKERS AND CLIMBERS MAY WANT TO POSTPONE ANY TRIPS INTO THE
MOUNTAINS THIS WEEK...ESPECIALLY AT HIGHER ELEVATIONS. IF YOU
GO...BE PREPARED FOR ACCUMULATING SNOW ABOVE 4000 FEET STARTING
LATER TUESDAY AND CONTINUING THROUGH AT LEAST WEDNESDAY NIGHT.

DRIVERS CROSSING THE CASCADES SHOULD CONSIDER USING ONE OF THE
LOWER PASSES SUCH AS SNOQUALMIE PASS. ALLOW EXTRA TIME FOR MOUNTAIN
JOURNEYS THIS WEEK.


$$

WEATHER.GOV/SEATTLE

Hazardous Weather Outlook

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SPOKANE WA
311 PM PDT TUE MAY 21 2013

IDZ001-004-WAZ037-221500-
NORTHERN PANHANDLE-CENTRAL PANHANDLE MOUNTAINS-
NORTHEAST MOUNTAINS-
311 PM PDT TUE MAY 21 2013

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTH IDAHO AND
NORTHEAST WASHINGTON.

.DAY ONE...THIS AFTERNOON AND TONIGHT

THUNDERSTORMS ARE EXPECTED TO DEVELOP ALONG A STRONG COLD FRONT
THIS AFTERNOON AND EVENING. THERE IS POTENTIAL THAT A FEW STORMS
COULD PRODUCE BRIEF HEAVY RAIN...SMALL HAIL...AND GUSTY WINDS
AROUND SANDPOINT...BONNERS FERRY...METALINE FALLS...AND CLARK
FORK.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

$$

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SPOKANE WA
311 PM PDT TUE MAY 21 2013

IDZ027-WAZ031-038-042-221500-
LEWIS AND SOUTHERN NEZ PERCE COUNTIES-NORTHEAST BLUE MOUNTAINS-
OKANOGAN HIGHLANDS-EAST SLOPES NORTHERN CASCADES-
311 PM PDT TUE MAY 21 2013

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

.DAY ONE...THIS AFTERNOON AND TONIGHT

SNOW LEVELS WILL RAPIDLY FALL TONIGHT INTO WEDNESDAY MORNING.
SNOW LEVELS WILL FALL AS LOW AS 2500 TO 3000 FEET. WHILE CONFIDENCE
IS LOW THAT LOCATIONS BELOW 4000 FEET WILL RECEIVE ANY
ACCUMULATING SNOW...IT IS ADVISED TO CHECK WITH WASHINGTON AND
IDAHO DEPARTMENT OF TRANSPORTATION FOR LATEST PASS CONDITIONS LATE
TONIGHT INTO WEDNESDAY MORNING.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

$$

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE PENDLETON OR
627 AM PDT TUE MAY 21 2013

ORZ049-050-502-503-505-506-WAZ030-221330-
GRANDE RONDE VALLEY-WALLOWA COUNTY-
NORTHERN BLUE MOUNTAINS OF OREGON-
SOUTHERN BLUE MOUNTAINS OF OREGON-JOHN DAY BASIN-OCHOCO-
JOHN DAY HIGHLANDS-NORTHWEST BLUE MOUNTAINS OF WASHINGTON-
627 AM PDT TUE MAY 21 2013

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL
OREGON...NORTHEAST OREGON AND SOUTHEAST WASHINGTON.

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL
OREGON...NORTH CENTRAL OREGON...NORTHEAST OREGON AND SOUTHEAST
WASHINGTON.

.DAY ONE...TODAY AND TONIGHT

A LARGE UPPER LEVEL LOW PRESSURE SYSTEM WILL DEVELOP RAPIDLY AND
APPROACH THE OREGON COAST THIS AFTERNOON. THE LOW WILL PUSH A COLD
FRONT THROUGH THE EASTERN SECTIONS OF OREGON AND SOUTHEAST
WASHINGTON TODAY. INSTABILITY EAST OF THE COLD FRONT WILL TRIGGER
ISOLATED THUNDERSTORMS THIS AFTERNOON AND THIS EVENING. ANY
THUNDERSTORMS THAT DO OCCUR ARE NOT EXPECTED TO BE STRONG OR
SEVERE.

SNOW LEVELS WILL LOWER TO PASS LEVELS, AROUND 2800-3500 FEET, BY
OVERNIGHT INTO WEDNESDAY MORNING IN CENTRAL AND NORTHEAST OREGON
AND IN THE BLUE MOUNTAINS IN SOUTHEAST WASHINGTON. SNOW
ACCUMULATIONS OF 2-3 INCHES ARE EXPECTED BY DAYBREAK WEDNESDAY IN
THE BLUE MOUNTAINS, THE WALLOWA MOUNTAINS, THE ELKHORN MOUNTAINS,
ALONG SUMMIT RIDGE IN EASTERN WALLOWA COUNTY, AND IN THE OCHOCO-
JOHN DAY HIGHLANDS. AN OFF-SEASON SNOW ADVISORY MAY BE NEEDED IN
SOME OF THESE AREAS FOR LATE TONIGHT THROUGH WEDNESDAY MORNING.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

THE AFOREMENTIONED UPPER LOW WILL PERSIST OVER THE PACIFIC
NORTHWEST THROUGH FRIDAY. AS SUCH THE LOW WILL KEEP LINGERING
UNSETTLED WEATHER ACROSS THE REGION WITH PERIODS OF RAIN SHOWERS
AT LOWER ELEVATIONS AND SNOW SHOWERS ABOVE 5000-5500 FEET THROUGH
FRIDAY IN THE MOUNTAINS OF NORTHEAST OREGON. THE LOW WILL BRING A
SLIGHT CHANCE OF THUNDERSTORMS IN THE OCHOCO-JOHN DAY HIGHLANDS
NORTHEASTWARD TO THE BLUE MOUNTAINS AND GRANT COUNTY EASTWARD INTO
IDAHO DURING IN THE AFTERNOON AND EVENING ON THURSDAY AND FRIDAY.

$$

POLAN

Short Term Forecast

SHORT TERM FORECAST
NATIONAL WEATHER SERVICE SPOKANE WA
358 PM PDT TUE MAY 21 2013

IDZ002-003-026-027-WAZ031>033-036-220015-
COEUR D`ALENE AREA-IDAHO PALOUSE-LEWISTON AREA-
LEWIS AND SOUTHERN NEZ PERCE COUNTIES-NORTHEAST BLUE MOUNTAINS-
LOWER GARFIELD AND ASOTIN COUNTIES-WASHINGTON PALOUSE-
SPOKANE AREA-
INCLUDING THE CITIES OF...COEUR D`ALENE...POST FALLS...HAYDEN...
WORLEY...MOSCOW...PLUMMER...POTLATCH...GENESEE...LEWISTON...
LAPWAI...PECK...CULDESAC...GIFFORD...KAMIAH...CRAIGMONT...
NEZPERCE...WINCHESTER...ANATONE...PEOLA...CLARKSTON...POMEROY...
PULLMAN...COLFAX...ROSALIA...LA CROSSE...OAKESDALE...TEKOA...
UNIONTOWN...SPOKANE...CHENEY...DAVENPORT...ROCKFORD
358 PM PDT TUE MAY 21 2013

.NOW...
WINDY CONDITIONS WILL PERSIST UNTIL ABOUT 6 PM IN THE SPOKANE...
COEUR D`ALENE...PULLMAN...MOSCOW...AND LEWISTON AREAS. WINDS OUT
OF THE WEST OR SOUTHWEST WILL BE SUSTAINED BETWEEN 20 AND 25 MPH
WITH GUSTS AS HIGH AS 40 MPH. MOTORISTS SHOULD BE PREPARED FOR
STIFF CROSS WINDS AND LOCALIZED AREAS OF BLOWING DUST. WINDS WILL
LIKELY SUBSIDE EARLY THIS EVENING.

$$

SHORT TERM FORECAST
NATIONAL WEATHER SERVICE BOISE ID
432 PM MDT TUE MAY 21 2013

IDZ012-014-015-029-033-ORZ063-064-220030-
LOWER TREASURE VALLEY ID-UPPER TREASURE VALLEY-
SOUTHWEST HIGHLANDS-OWYHEE MOUNTAINS-UPPER WEISER RIVER-
MALHEUR COUNTY-LOWER TREASURE VALLEY OR-
432 PM MDT TUE MAY 21 2013 /332 PM PDT TUE MAY 21 2013/

.NOW...
EXPECT BLOWING DUST WITH VISIBILITY BELOW 2 MILES AT TIMES ON
INTERSTATE 84 BETWEEN ONTARIO AND CALDWELL THROUGH 530 PM AND
BETWEEN CALDWELL AND BOISE BETWEEN 5 AND 7 PM. WINDS WILL SHIFT
FROM THE SOUTH AT 15 TO 25 MPH TO THE WEST AT 25 TO 35 MPH WITH
LOCAL GUSTS AROUND 45 MPH AS THE FRONT MOVES THROUGH. AT 421 PM
THE FRONT HAD CROSSED ONTARIO OREGON WITH 45 MPH WINDS.

$$