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Arlington, WA

Current Radar Forecast Warnings
NWS: Winter Storm Warning
42.1°F / 5.6°C
Overcast
Windchill: 42°F / 6°C
Humidity: 87%
Dew Point: 38°F / 4°C
Wind: SSE at 0.0 mph / 0.0 km/h
Wind Gust: 6.0 mph / 9.7 km/h
Pressure: 29.83 in / 1010.0 hPa (Rising)
Visibility: 10.0 miles / 16.1 kilometers
Clouds: Overcast (OVC) : 3300 ft / 1005 m
Yesterday's Maximum: 51.8°F / 11.0°C
Yesterday's Minimum: 42.3°F / 5.7°C
UV: 0 out of 16
Sunrise:7:24 AM PST
Sunset:4:23 PM PST
Moon Rise:11:36 AM PST
Moon Set:8:41 PM PST
Moon Phase Waxing Crescent
Marine Forecast
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METAR KAWO 220135Z AUTO 14012G19KT 10SM OVC033 07/03 A2980 RMK AO1
As of: 5:41 PM PST on November 21, 2009
Observed at: Rainbow Springs, Granite Falls, WA

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Forecast

Current Radar Forecast Warnings
Tomorrow is forecast to be nearly the same temperature as today.
Winter Storm Warning in effect until 1 PM PST Sunday...
Tonight
Breezy. Heavy snow or rain. Snow level 2000 feet rising to 3000 feet late. Snow accumulation of 10 to 20 inches. Southeast wind in the passes 15 to 25 mph.
Sunday
Heavy snow turning to showers midday. Snow level 3000 feet early falling to 2000 feet midday. Snow accumulations 6 to 12 inches. Total snow accumulation 15 to 30 inches. West wind in the passes 20 to 30 mph with gusts to 50 mph early...easing to 15 to 20 mph midday.
Sunday Night
Cloudy with a chance of showers. Snow level 2000 feet. West wind in the passes 10 to 15 mph.
Monday
Rain or snow likely. Snow level 3500 feet. Afternoon pass temperatures in the lower 30s. Light wind becoming southeast near 10 mph in the afternoon.
Monday Night
Rain or snow likely. Snow level 5000 feet. Light wind.
Tuesday
Mostly cloudy with a chance of rain and snow. Snow level 5500 feet. Afternoon pass temperatures in the mid 30s.
Tuesday Night and Wednesday
Mostly cloudy with a chance of rain and snow. Snow level 5500 feet.
Wednesday Night through Saturday
Rain and snow likely. Snow level 4000 feet.
As of: 3:30 PM PST on November 21, 2009

Scientific Forecaster Discussion

Warnings & Notices

Current Radar Forecast Warnings

Winter Storm Warning

Expires 1:00 PM PST on November 22, 2009
Statement as of 3:07 PM PST on November 21, 2009

... Winter Storm Warning remains in effect until 1 PM PST Sunday...

A Winter Storm Warning remains in effect until 1 PM PST Sunday.

A vigorous Pacific frontal system will bring very heavy snowfall
to the Cascades through midday Sunday. Snowfall totals will
likely be in the range of one foot to two and a half feet. The
heaviest periods of snow will be tonight with 10 to 20 inches
expected.

The snow level will rise to 3000 feet tonight... then fall to 2000
feet on Sunday as snowfall tapers off.

Precautionary/preparedness actions...

A Winter Storm Warning means significant amounts of snow...
sleet... and ice are expected or occurring. Strong winds are also
possible. This will make travel hazardous or impossible. If you
plan to travel into the Cascades be prepared for hazardous
driving conditions... long delays... and Road closures.





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