Weather Alert in California
Red Flag Warning issued June 19 at 7:00PM PDT until June 20 at 11:00PM PDT by NWS Hanford CA
AREAS AFFECTED: Kern County Desert
DESCRIPTION: ...RED FLAG WARNING IN EFFECT FOR THE MOJAVE SLOPES AND DESERT... STRONGLY WESTERLY WINDS AND LOW HUMIDITY BELOW 15 PERCENT FOR FIRE WEATHER ZONES 298 AND 299. * AFFECTED AREA...Fire weather zone 299. * WIND...West to Southwest 20 to 30 mph with gusts up to 60 mph. * HUMIDITY...Minimum RH values down to 10 to 20 percent. * HIGHEST THREAT...Close to and along the slopes. * IMPACTS...any fires that develop will likely spread rapidly. Outdoor burning is not recommended.
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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