Weather Alert in California
Severe Thunderstorm Warning issued July 26 at 3:36PM PDT until July 26 at 4:00PM PDT by NWS Reno NV
AREAS AFFECTED: Plumas, CA
DESCRIPTION: SVRREV The National Weather Service in Reno has issued a * Severe Thunderstorm Warning for... Plumas County in northern California... * Until 400 PM PDT. * At 336 PM PDT, a severe thunderstorm was located near Vinton, or 7 miles west of Chilcoot, moving east at 10 mph. HAZARD...60 mph wind gusts and quarter size hail. SOURCE...Radar indicated. IMPACT...Hail damage to vehicles is expected. Expect wind damage to roofs, siding, fencing and trees. * Locations impacted include... Vinton and Chilcoot-Vinton.
INSTRUCTION: For your protection move to an interior room on the lowest floor of a building.
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Weather Topic: What are Mammatus Clouds?
Home - Education - Cloud Types - Mammatus Clouds
Next Topic: Nimbostratus Clouds
A mammatus cloud is a cloud with a unique feature which resembles
a web of pouches hanging along the base of the cloud.
In the United States, mammatus clouds tend to form in the warmer months, commonly
in the Midwest and eastern regions.
While they usually form at the bottom of a cumulonimbis cloud, they can also form
under altostratus, altocumulus, stratocumulus, and cirrus clouds. Mammatus clouds
warn that severe weather is close.
Next Topic: Nimbostratus Clouds
Weather Topic: What is Precipitation?
Home - Education - Precipitation - Precipitation
Next Topic: Rain
Precipitation can refer to many different forms of water that
may fall from clouds. Precipitation occurs after a cloud has become saturated to
the point where its water particles are more dense than the air below the cloud.
In most cases, precipitation will reach the ground, but it is not uncommon for
precipitation to evaporate before it reaches the earth's surface.
When precipitation evaporates before it contacts the ground it is called Virga.
Graupel, hail, sleet, rain, drizzle, and snow are forms of precipitation, but fog
and mist are not considered precipitation because the water vapor which
constitutes them isn't dense enough to fall to the ground.
Next Topic: Rain
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