Weather Alert in California
Red Flag Warning issued September 1 at 12:04PM PDT until September 2 at 8:00PM PDT by NWS Eureka CA
AREAS AFFECTED: Lower Middle Klamath; Trinity
DESCRIPTION: ...ISOLATED DRY THUNDERSTORMS TUESDAY AFTERNOON AND EARLY EVENING... .Isolated dry thunderstorms are possible over the interior Tuesday afternoon and into early evening. Threats include erratic gusty winds and lightning. Lightning on dry fuels may lead to new fire starts. In addition, gusty winds combined with hot temperatures and low relative humidity will also produce near critical fire weather conditions. Existing fires and any new fireS will have the potential to spread rapidly. The National Weather Service in Eureka has issued a Red Flag Warning, which is in effect from 1 PM to 8 PM PDT Tuesday. The Fire Weather Watch is no longer in effect. * THUNDERSTORMS...Isolated dry storms over high terrain in the afternoon and early evening hours. * OUTFLOW WINDS...Gusty and erratic outflow winds over 40 mph possible. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. * Additional Impacts...Hot, dry weather and breezy winds will increase the fire danger even in areas away from thunderstorms.
INSTRUCTION: A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior.
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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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