Weather Alert in Washington
Flood Warning issued March 19 at 11:26AM PDT until March 22 at 9:34AM PDT by NWS Seattle WA
AREAS AFFECTED: Snohomish, WA
DESCRIPTION: ...The Flood Warning continues for the following rivers in Washington... Snohomish River At Snohomish affecting Snohomish County. ...The Flood Warning is cancelled for the following rivers in Washington... Snohomish River Near Monroe affecting Snohomish County. Skykomish River Near Gold Bar affecting Snohomish County. .Rain will continue today and will increase overnight with 2 to 3 inches expected. Rivers will recede throughout the day before rising again Friday night. * WHAT...Near moderate flooding is occurring and moderate flooding is forecast. * WHERE...Snohomish River at Snohomish. * WHEN...Until late Sunday morning. * IMPACTS...At 27.0 feet, the Snohomish River will flood several roads...including the Snohomish-Monroe highway...and low areas of the lower Snohomish valley that are not protected by levees. A stage of 27 feet on the Snohomish River corresponds roughly to a Phase 2 in the Snohomish County flood program. * ADDITIONAL DETAILS... - At 11:00 AM PDT Thursday the stage was 26.8 feet. - Flood stage is 25.0 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 11:00 AM PDT Thursday was 27.0 feet. - Forecast...The river will fall below flood stage tomorrow morning. It will then rise above flood stage early Saturday morning to 25.8 feet late Saturday morning. It will fall below flood stage again Saturday evening and continue to fall. - http://www.weather.gov/safety/flood
INSTRUCTION: Motorists should not attempt to drive around barricades or drive cars through flooded areas. Caution is urged when walking near riverbanks. Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Additional information is available at www.weather.gov. The next statement will be issued by this afternoon at 1230 PM PDT.
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Weather Topic: What is Graupel?
Home - Education - Precipitation - Graupel
Next Topic: Hail
Graupel is a form of precipitation that is created by atmospheric conditions
which cause supercooled water droplets to contact snow crystals and freeze to
their surface.
Sometimes known as soft hail or snow pellets, graupel is delicate and easily
destroyed by touch. Whereas hail usually falls during severe weather, graupel
doesn't require such conditions to form, and can form in mild precipitation
similar to situations which produce snowfall.
Next Topic: Hail
Weather Topic: What are Hole Punch Clouds?
Home - Education - Cloud Types - Hole Punch Clouds
Next Topic: Mammatus Clouds
A hole punch cloud is an unusual occurrence when a disk-shaped
hole appears in a cirrostratus, cirrocumulus, or altocumulus cloud.
When part of the cloud forms ice crystals, water droplets in the surrounding area
of the cloud evaporate. The effect of this process produces a large elliptical
gap in the cloud. The hole punch cloud formation is rare, but it is not specific
to any geographic area.
Other names which have been used to describe this phenomena include fallstreak hole,
skypunch, and cloud hole.
Next Topic: Mammatus Clouds
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