Weather Alert in Washington
Flood Warning issued March 19 at 3:29AM PDT until March 19 at 5:18PM PDT by NWS Seattle WA
AREAS AFFECTED: Snohomish, WA
DESCRIPTION: ...The Flood Warning continues for the following rivers in Washington... Snohomish River Near Monroe affecting Snohomish County. Snoqualmie River Near Snoqualmie Falls affecting King County. ...The Flood Warning is extended for the following rivers in Washington... Tolt River Above Carnation affecting King County. Snoqualmie River Near Carnation affecting King County. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Snohomish River near Monroe. * WHEN...Until late this afternoon. * IMPACTS...At 15.0 feet, the Snohomish River will cause minor flooding of low pasture lands and several roads near the river. A stage of 15 feet at this location corresponds to Phase 2 in the Snohomish County Flood Warning System. * ADDITIONAL DETAILS... - At 2:15 AM PDT Thursday the stage was 15.0 feet. - Flood stage is 15.0 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 2:15 AM PDT Thursday was 15.0 feet. - Forecast...The river is cresting around 15.0 feet early this morning. The river will begin receding later this morning and continue to recede overnight. - http://www.weather.gov/safety/flood
INSTRUCTION: Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Motorists should not attempt to drive around barricades or drive cars through flooded areas. Additional information is available at www.weather.gov. The next statement will be issued by this morning at 1130 AM PDT.
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Weather Topic: What is Sleet?
Home - Education - Precipitation - Sleet
Next Topic: Snow
Sleet is a form of precipitation in which small ice pellets are the primary
components. These ice pellets are smaller and more translucent than hailstones,
and harder than graupel. Sleet is caused by specific atmospheric conditions and
therefore typically doesn't last for extended periods of time.
The condition which leads to sleet formation requires a warmer body of air to be
wedged in between two sub-freezing bodies of air. When snow falls through a warmer
layer of air it melts, and as it falls through the next sub-freezing body of air
it freezes again, forming ice pellets known as sleet. In some cases, water
droplets don't have time to freeze before reaching the surface and the result is
freezing rain.
Next Topic: Snow
Weather Topic: What are Stratocumulus Clouds?
Home - Education - Cloud Types - Stratocumulus Clouds
Next Topic: Stratus Clouds
Stratocumulus clouds are similar to altocumulus clouds in their
fluffy appearance, but have a slightly darker shade due to their additional mass.
A good way to distinguish the two cloud types is to hold your hand out and measure
the size of an individual cloud; if it is the size of your thumb it is generally
an altocumulus cloud, if it is the size of your hand it is generally a
stratocumulus cloud.
It is uncommon for stratocumulus clouds to produce precipitation, but if they do
it is usually a light rain or snow.
Next Topic: Stratus Clouds
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