Weather Alert in Washington
Extreme Heat Warning issued September 1 at 11:40AM PDT until September 4 at 8:00PM PDT by NWS Spokane WA
AREAS AFFECTED: Moses Lake Area
DESCRIPTION: * WHAT...For the Heat Advisory, high temperatures 92 to 99 degrees. For the Extreme Heat Warning, dangerously hot conditions with high temperatures 95 to 104 degrees. * WHERE...Quincy, Moses Lake, Othello, and Ephrata. * WHEN...For the Heat Advisory, until 11 AM PDT Tuesday. For the Extreme Heat Warning, from 11 AM Tuesday to 8 PM PDT Thursday. * IMPACTS...Hot temperatures will increase the risk of heat-related illnesses. Heat Risk of this magnitude impacts almost everyone who does not have access to adequate cooling or hydration.
INSTRUCTION: Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.
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Weather Topic: What are Shelf Clouds?
Home - Education - Cloud Types - Shelf Clouds
Next Topic: Sleet
A shelf cloud is similar to a wall cloud, but forms at the front
of a storm cloud, instead of at the rear, where wall clouds form.
A shelf cloud is caused by a series of events set into motion by the advancing
storm; first, cool air settles along the ground where precipitation has just fallen.
As the cool air is brought in, the warmer air is displaced, and rises above it,
because it is less dense. When the warmer air reaches the bottom of the storm cloud,
it begins to cool again, and the resulting condensation is a visible shelf cloud.
Next Topic: Sleet
Weather Topic: What is Snow?
Home - Education - Precipitation - Snow
Next Topic: Stratocumulus Clouds
Snow is precipitation taking the form of ice crystals. Each ice crystal, or snowflake,
has unique characteristics, but all of them grow in a hexagonal structure.
Snowfall can last for sustained periods of time and result in significant buildup
of snow on the ground.
On the earth's surface, snow starts out light and powdery, but as it begins to melt
it tends to become more granular, producing small bits of ice which have the consistency of
sand. After several cycles of melting and freezing, snow can become very dense
and ice-like, commonly known as snow pack.
Next Topic: Stratocumulus Clouds
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