Weather Alert in California
Red Flag Warning issued June 20 at 9:48PM PDT until June 22 at 5:00AM PDT by NWS Hanford CA
AREAS AFFECTED: West Side Hills; San Joaquin Valley
DESCRIPTION: ...RED FLAG WARNING IN EFFECT FOR THE MOJAVE SLOPES AND DESERT, THE WEST HILLS AND WESTERN PORTIONS OF THE SAN JOAQUIN VALLEY... * AFFECTED AREA...West Side Hills and the San Joaquin Valley. * WIND...Northwestly 15 to 20 mph with gusts to 35 mph. * HUMIDITY...Minimum RH values down to 10 to 20 percent. * HIGHEST THREAT...Across the West Hills and the Western portionsof the San Joaquin Valley. * 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 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
Weather Topic: What are Wall Clouds?
Home - Education - Cloud Types - Wall Clouds
Next Topic: Altocumulus Clouds
A wall cloud forms underneath the base of a cumulonimbus cloud,
and can be a hotbed for deadly tornadoes.
Wall clouds are formed by air flowing into the cumulonimbus clouds, which can
result in the wall cloud descending from the base of the cumulonimbus cloud, or
rising fractus clouds which join to the base of the storm cloud as the wall cloud
takes shape.
Wall clouds can be very large, and in the Northern Hemisphere they generally
form at the southern edge of cumulonimbus clouds.
Next Topic: Altocumulus Clouds
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