Weather Alert in California
Heat Advisory issued August 30 at 6:06AM PDT until September 2 at 6:00PM PDT by NWS Los Angeles/Oxnard CA
AREAS AFFECTED: Santa Clarita Valley; Lake Casitas; Ojai Valley; Central Ventura County Valleys; Los Angeles County Inland Coast including Downtown Los Angeles; Western Santa Monica Mountains Recreational Area; Eastern Santa Monica Mountains Recreational Area; Calabasas and Agoura Hills; Western San Fernando Valley; Eastern San Fernando Valley; Southeastern Ventura County Valleys; Santa Susana Mountains; Southern Ventura County Mountains; Interstate 5 Corridor; Western San Gabriel Mountains and Highway 14 Corridor; Los Angeles County San Gabriel Valley
DESCRIPTION: * WHAT...Hot daytime conditions with high temperatures of 96 to 106 degrees common, and warm overnight conditions. * WHERE...Coastal valleys and lower mountains of Los Angeles and Ventura Counties, as well as the Los Angeles County Inland Coastal Plain which includes Downtown Los Angeles. * WHEN...From 10 AM Monday to 6 PM PDT Tuesday. * IMPACTS...There is a high risk for heat illness for sensitive populations including the very young, the very old, those without air conditioning, and those active outdoors. * ADDITIONAL DETAILS...This advisory may need to be extended through Wednesday.
INSTRUCTION: Limit strenuous outdoor activities (like hiking) to the early morning hours. Stay in air conditioned spaces during the heat of the day. Check up on relatives and neighbors.
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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
Weather Topic: What are Altostratus Clouds?
Home - Education - Cloud Types - Altostratus Clouds
Next Topic: Cirrocumulus Clouds
Altostratus clouds form at mid to high-level altitudes
(between 2 and 7 km) and are created by a warm, stable air mass which causes
water vapor
to condense as it rise through the atmosphere. Usually altostratus clouds are
featureless sheets characterized by a uniform color.
In some cases, wind punching through the cloud formation may give it a waved
appearance, called altostratus undulatus. Altostratus clouds
are commonly seen with other cloud formations accompanying them.
Next Topic: Cirrocumulus Clouds
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