Weather Alert in Washington
Winter Weather Advisory issued March 10 at 2:37AM PDT until March 11 at 6:00PM PDT by NWS Seattle WA
AREAS AFFECTED: Cascades of Whatcom and Skagit Counties; Cascades of Snohomish and Northern King Counties
DESCRIPTION: * WHAT...For the Winter Weather Advisory, snow expected. Total snow accumulations between 10 and 20 inches. For the Blizzard Warning, blizzard conditions expected primarily Wednesday evening. Winds gusting as high as 45 mph with additional snow accumulations of 8 to 12 inches. Total snow accumulations between 1 and 3 feet possible. For the Winter Storm Watch, continued heavy snow is possible late Wednesday night through late Friday night. * WHERE...Cascades of Snohomish and Northern King Counties and Cascades of Whatcom and Skagit Counties. * WHEN...For the Winter Weather Advisory, until 6 PM PDT Wednesday. For the Blizzard Warning, from 6 PM Wednesday to 5 AM PDT Thursday. For the Winter Storm Watch, from late Wednesday night through late Friday night. * IMPACTS...Snow-covered roads may make travel conditions difficult to impossible at times through the mountains and cause delays. Temporary road closures possible. Gusty winds may limit visibility at times and down tree branches.
INSTRUCTION: Travel should be restricted to emergencies only. If you must travel, have a winter survival kit with you. If you get stranded, stay with your vehicle. Prepare for possible power outages. Slow down and use caution while traveling. Prepare for possible power outages. Monitor the latest forecasts for updates on this situation.
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Weather Topic: What are Altostratus Clouds?
Home - Education - Cloud Types - Altostratus Clouds
Next Topic: Cirrocumulus Clouds
Altostratus clouds form at mid to high-level altitudes
(between 2 and 7 km) and are created by a warm, stable air mass which causes
water vapor
to condense as it rise through the atmosphere. Usually altostratus clouds are
featureless sheets characterized by a uniform color.
In some cases, wind punching through the cloud formation may give it a waved
appearance, called altostratus undulatus. Altostratus clouds
are commonly seen with other cloud formations accompanying them.
Next Topic: Cirrocumulus Clouds
Weather Topic: What are Cirrostratus Clouds?
Home - Education - Cloud Types - Cirrostratus Clouds
Next Topic: Cirrus Clouds
Cirrostratus clouds are high, thin clouds that form above
20,000 feet and are made mostly of ice crystals. They sometimes look like giant
feathers, horse tails, or curls of hair in the sky.
These clouds are pushed by the jet stream and can move at high speeds reaching
100 mph.
What do they indicate?
They indicate that a precipitation is likely within 24 hours.
Next Topic: Cirrus Clouds
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