Partly Sunny Saturday
Saturday, November 25, 2006
Good day to get outside decorations up if you haven't already. More wet weather tomorrow and Monday. It is looking like the incoming weather system will track to our north, bad news for snow as south winds will blow. Cold air to our north will be held at bay until the storm moves east on Monday. Then cold air filters in but little moisture., This can all change if the track changes so it will be as usual an hour by hour forecast. Stay tuned. The NWS is using that magic 500 feet forecast for snow Sunday night and Monday. Most of us live way below that.
Two Day Snow Totals . . . .
PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE PORTLAND OR
SNOWFALL TOTALS FOR THE CASCADES OF NORTH AND CENTRAL
OREGON FROM 11-22-06 4 PM TO 11-24-06 9 PM PST...
SNOWFALL TOTALS...
OREGON
WHITE RIVER ................. 46
TIMBERLINE LODGE ............ 33
GOVERNMENT CAMP ............. 26
MOUNT HOOD MEADOWS .......... 27
TOMBSTONE ................... 12
SANTIAM PASS ................ 11
WILLAMETTE PASS ............. 12
BLUE BOX PASS................ 37
WARM SPRINGS JUNCTION........ 11
SPECIAL WEATHER STATEMENT
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SEATTLE WA
517 AM PST SAT NOV 25 2006
WAZ001-503>512-514>517-261330-
SAN JUAN COUNTY-WESTERN WHATCOM COUNTY-SOUTHWEST INTERIOR-
EAST PUGET SOUND LOWLANDS-WESTERN SKAGIT COUNTY-EVERETT AND VICINITY-
SEATTLE/BREMERTON AREA-TACOMA AREA-ADMIRALTY INLET AREA-
HOOD CANAL AREA-LOWER CHEHALIS VALLEY AREA-
EASTERN STRAIT OF JUAN DE FUCA-WESTERN STRAIT OF JUAN DE FUCA-
NORTH COAST-CENTRAL COAST-
517 AM PST SAT NOV 25 2006
...SIGNIFICANT SNOW POSSIBLE FOR THE LOWLANDS LATE TONIGHT AND
SUNDAY..
COLD AIR IS IN PLACE OVER SOUTHERN CANADA WITH A COUPLE OF PACIFIC
SYSTEMS FORECAST TO MOVE THROUGH WESTERN WASHINGTON THIS WEEKEND.
MODELS DIFFER DRAMATICALLY ON THE TRACK OF THESE SYSTEMS WITH SOME
SUGGESTING RAIN WHILE OTHERS SUGGEST SIGNIFICANT SNOW.
THE FIRST THREAT OF SNOW APPEARS TO BE TONIGHT. AREAS NORTH OF
SEATTLE COULD SEE SOME ACCUMULATIONS AS A WEAK FRONT MOVES
THROUGH. ACCUMULATIONS...IF ANY...WOULD BE LIGHT.
A STRONGER SYSTEM IS EXPECTED TO AFFECT THE AREA BEGINNING EARLY SUNDAY.
THE LOCATION OF WHERE THE SURFACE LOW ASSOCIATED WITH THIS SYSTEM
MOVES INLAND WILL DETERMINE WHICH IF ANY LOCATIONS GET SNOW.
CURRENT COMPUTER MODEL SOLUTIONS BRING THE LOW INLAND ALONG THE
CENTRAL COAST WITH THE LOW MOVING JUST TO THE NORTH OF SEATTLE ON
SUNDAY. WITH THIS SCENARIO...ITS POSSIBLE THAT LOCATIONS AS FAR
SOUTH AS SEATTLE COULD SEE SOME SNOW. IF THE LOW TRACK FURTHER
SOUTH THIS WOULD PULL COLD AIR DOWN FROM THE NORTH AND COULD LEAD
TO SIGNIFICANT ACCUMULATIONS OVER THE LOWLANDS. IF THE LOW TRACKS
FURTHER TO THE NORTH THIS WILL KEEP THE COLD AIR BOTTLED UP OVER
SOUTHERN BRITISH COLUMBIA WITH THE CHANCES FOR SIGNIFICANT SNOW
WILL BE CONFINED TO THE NORTHWEST INTERIOR.
AT THIS TIME IT APPEARS LIKELY THAT SOME AREAS WILL SEE SNOW.
HOWEVER...MODELS REMAIN INCONSISTENT WITH THE TRACK OF THE LOW AND
DETAILS ARE IMPOSSIBLE TO PIN DOWN AT THIS POINT.
STAY INFORMED OF THE LATEST FORECAST BY LISTENING TO NOAA WEATHER
RADIO OR LOCAL NEWS SOURCES.
SPECIAL WEATHER STATEMENT
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PORTLAND OR
1210 PM PST SAT NOV 25 2006
ORZ003>008-010-012-WAZ020-022-039-040-262300-
COAST RANGE OF NORTHWEST OREGON-
CENTRAL COAST RANGE OF WESTERN OREGON-LOWER COLUMBIA-
GREATER PORTLAND METRO AREA-CENTRAL WILLAMETTE VALLEY-
SOUTH WILLAMETTE VALLEY-NORTHERN OREGON CASCADE FOOTHILLS-
CASCADE FOOTHILLS IN LANE COUNTY-WILLAPA HILLS-I-
5 CORRIDOR IN COWLITZ COUNTY-GREATER VANCOUVER AREA-
SOUTH WASHINGTON CASCADE FOOTHILLS-
INCLUDING THE CITIES OF...VERNONIA...JEWELL...TRASK..
GRANDE RONDE...TIDEWATER...SWISSHOME...ST. HELENS...CLATSKANIE..
HILLSBORO...PORTLAND...OREGON CITY...GRESHAM...SALEM..
MCMINNVILLE...DALLAS...EUGENE...CORVALLIS...ALBANY...SANDY..
SILVER FALLS STATE PARK...SWEET HOME...VIDA...LOWELL..
COTTAGE GROVE...FRANCES...RYDERWOOD...LONGVIEW...KELSO..
CASTLE ROCK...VANCOUVER...BATTLE GROUND...WASHOUGAL...TOUTLE..
ARIEL...COUGAR
1210 PM PST SAT NOV 25 2006
...SNOW LEVELS LOWERING CONSIDERABLY OVER THE SOUTHWEST
WASHINGTON AND NORTHWEST OREGON LOWLANDS SUNDAY NIGHT AND MONDAY..
THE COLDEST AIR OF THE SEASON WILL INVADE SOUTHWEST WASHINGTON AND
NORTHWEST OREGON SUNDAY NIGHT AND MONDAY...IN THE WAKE OF A STRONG
STORM SYSTEM THAT MOVES THROUGH ON SUNDAY.
THE SNOW LEVEL MAY BRIEFLY DROP RATHER TO LOW ELEVATIONS IN
MAINLY THE SOUTHWEST WASHINGTON INTERIOR AHEAD OF THE STRONG
SYSTEM SUNDAY. BUT THEN SNOW LEVELS COULD EASILY FALL TO BELOW
1000 FEET LATE SUNDAY NIGHT AND MONDAY...AND POSSIBLY BELOW 500
FEET.
THE SURFACE LOW FROM THE SYSTEM ON SUNDAY IS NOW FORECAST TO
MOVE INTO EASTERN WASHINGTON ON MONDAY...AND THIS WILL CREATE AN
ONSHORE FLOW OVER SOUTHWEST WASHINGTON AND NORTHWEST OREGON. THIS
MAY MAKE IT HARDER FOR THE SNOW LEVEL TO REACH THE VALLEY FLOORS
ON MONDAY...THOUGH THE AIR MAY BE COLD ENOUGH IN SOUTHWEST
WASHINGTON AND NEAR PORTLAND THAT THE SNOW LEVEL MAY REACH THE
SURFACE AT TIMES MONDAY.
BE SURE TO TAKE ANY PRECAUTIONS TO PREPARE FOR THE UPCOMING COLD
WEATHER...SUCH AS PROTECTING WATER PIPES OR ANY REMAINING TENDER
PLANTS.
CONTINUE TO LISTEN TO NOAA WEATHER RADIO OR YOUR FAVORITE
WEATHER NEWS SOURCE FOR UPDATES ON THIS DEVELOPING WEATHER EVENT.
So there you go, I have passed along these special weather statements from Portland and Seattle concerning the incoming weather systems. It is still a toss up whether we will get any snowfall but I would think we would before all is said and done on Tuesday. The local weather geeks are going crazy. So, any bets?
-- posted by Pat Timm @ 12:29 PM,
