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Oregon, Lower Columbia

Special Statement

Statement as of 3:25 PM PST on February 22, 2017

Expires 6:30 PM EST on February 23, 2017


... Low snow levels through early next week...

A cool and unstable air mass will linger over the region for the
next several days. Low elevation temperatures will hover in the
lower to middle 30s each night. Most accumulating snow will
remain around 1,000 feet or higher. However, some showers may
bring visible snow down to sea level for most of the next several
days. The best chance for brief low level accumulations will be
during the overnight and early daylight hours when ground
temperatures are coldest. Any accumulations will be short-lived
and should melt within a couple hours. Above 1,000 feet, 1 to 2
inches of accumulation are possible each day. This would impact
many Coast Range passes along with the Cascade foothills and the
highest terrain of the Portland and Vancouver Metro area.

Friday appears to have the best potential for accumulating snow as
a compact upper low will slide south along the coast centered
about 200 miles offshore. Weather models are currently keeping
most precipitation along the Coast Range and westward. However,
a couple are hinting at potential for a brief snow band to form
over the north Willamette Valley and lower Columbia River area,
including the Metro area around the time of the morning commute.
The range of possible accumulation amounts at elevations close to
sea level are mostly less than a half inch, however, one model
indicates 1 to 2 inches ending around 10 am.

Those traveling over the next several days should stay up to date
with the latest forecasts and especially for Friday as details
evolve.


Jbonk


325 PM PST Wed Feb 22 2017

... Low snow levels through early next week...

A cool and unstable air mass will linger over the region for the
next several days. Low elevation temperatures will hover in the
lower to middle 30s each night. Most accumulating snow will
remain around 1,000 feet or higher. However, some showers may
bring visible snow down to sea level for most of the next several
days. The best chance for brief low level accumulations will be
during the overnight and early daylight hours when ground
temperatures are coldest. Any accumulations will be short-lived
and should melt within a couple hours. Above 1,000 feet, 1 to 2
inches of accumulation are possible each day. This would impact
many Coast Range passes along with the Cascade foothills and the
highest terrain of the Portland and Vancouver Metro area.

Friday appears to have the best potential for accumulating snow as
a compact upper low will slide south along the coast centered
about 200 miles offshore. Weather models are currently keeping
most precipitation along the Coast Range and westward. However,
a couple are hinting at potential for a brief snow band to form
over the north Willamette Valley and lower Columbia River area,
including the Metro area around the time of the morning commute.
The range of possible accumulation amounts at elevations close to
sea level are mostly less than a half inch, however, one model
indicates 1 to 2 inches ending around 10 am.

Those traveling over the next several days should stay up to date
with the latest forecasts and especially for Friday as details
evolve.


Jbonk

Weather Severe Map
Alaska - Wind Advisory , Winter Weather Advisory , Winter Storm Warning , Blizzard Warning , Wind Chill Advisory , Special Statement
Arizona - Wind Advisory
Arkansas - Dense Fog Advisory
American Samoa - Flash Flood Watch
California - Areal Flood Warning , Areal Flood Warning , Flood Warning , Flood Warning, Areal Flood Warning , Areal Flood Advisory , High Surf Advisory , Flash Flood Watch , Wind Advisory , Winter Storm Watch, Winter Weather Advisory , Winter Weather Advisory , Winter Storm Watch , Special Statement, Hydrologic Statement , Air Quality Alert , Hydrologic Statement
Colorado - Winter Weather Advisory , Fire Weather Warning , Fire Weather Watch , Public Information Statement
Florida - Flood Warning
Hawaii - Special Statement
Idaho - Areal Flood Warning , Flood Warning , Areal Flood Warning , Areal Flood Advisory , Areal Flood Advisory, Flood Watch , Winter Weather Advisory , Winter Storm Warning
Iowa - Flood Warning , Winter Storm Watch , Blizzard Watch
Kansas - Fire Weather Warning , Fire Weather Watch
Louisiana - Dense Fog Advisory
Michigan - Special Statement
Minnesota - Flood Warning , Winter Storm Watch , Blizzard Watch
Mississippi - Dense Fog Advisory
Montana - Areal Flood Warning , Areal Flood Watch , Winter Weather Advisory , Winter Storm Warning
Nebraska - Winter Storm Warning , Winter Storm Watch , Blizzard Watch , Winter Weather Advisory
Nevada - Flood Warning , Winter Weather Advisory
New Mexico - Wind Advisory, High Wind Watch , High Wind Watch , Wind Advisory , High Wind Watch, Wind Advisory , High Wind Warning , Fire Weather Warning
New York - Dense Fog Advisory
North Dakota - Flood Warning
Oklahoma - High Wind Watch , Fire Weather Warning , Fire Weather Watch
Oregon - Flood Warning , Winter Storm Watch, Winter Weather Advisory , Winter Weather Advisory , Special Statement
South Dakota - Flood Warning, Areal Flood Warning , Blizzard Watch , Winter Storm Watch , Winter Storm Warning
Texas - Flood Warning , High Wind Watch , Wind Advisory , High Wind Warning , Fire Weather Warning , Fire Weather Warning, Fire Weather Watch , Fire Weather Watch
Utah - Winter Weather Advisory
Washington - Special Statement
Wisconsin - Flood Warning , Winter Storm Watch , Special Statement
Wyoming - Areal Flood Warning , Winter Storm Warning , Winter Weather Advisory , Blizzard Warning , Special Statement

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