Weather Alert in California
Flood Watch issued March 12 at 2:53AM PDT until March 13 at 6:00PM PDT by NWS Los Angeles/Oxnard CA
AREAS AFFECTED: Catalina and Santa Barbara Islands; Santa Clarita Valley; Santa Barbara County Southwestern Coast; Santa Barbara County Southeastern Coast; Santa Ynez Mountains Western Range; Santa Ynez Mountains Eastern Range; Ventura County Beaches; Ventura County Inland Coast; Lake Casitas; Ojai Valley; Central Ventura County Valleys; Malibu Coast; Los Angeles County Beaches; Palos Verdes Hills; 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; Interstate 5 Corridor; Western San Gabriel Mountains and Highway 14 Corridor; Eastern San Gabriel Mountains; Los Angeles County San Gabriel Valley
DESCRIPTION: * WHAT...Flash flooding and debris flows caused by excessive rainfall are possible. * WHERE...Much of Los Angeles and Ventura Counties (below 5,000 to 6,000 feet), and the Santa Barbara County South Coast including the Santa Ynez Range. Higher concern for recent burn scars within the watch area. * WHEN...From this evening through Thursday afternoon. * IMPACTS...Potential for heavy rain over the burn scars may trigger hazardous and damaging flooding and debris flows. Flooding may also occur in poor drainage and urban areas. * ADDITIONAL DETAILS... - Peak rates of 0.5 to 0.75 inch/hr are possible, with a 10 to 20 percent chance rates of 1.0+ inch/hr (due to thunderstorms or heavy showers). - http://www.weather.gov/safety/flood
INSTRUCTION: You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop.
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North America Water Vapor (Moisture)
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Weather Topic: What are Cirrostratus Clouds?
Home - Education - Cloud Types - Cirrostratus Clouds
Next Topic: Cirrus Clouds
Cirrostratus clouds are high, thin clouds that form above
20,000 feet and are made mostly of ice crystals. They sometimes look like giant
feathers, horse tails, or curls of hair in the sky.
These clouds are pushed by the jet stream and can move at high speeds reaching
100 mph.
What do they indicate?
They indicate that a precipitation is likely within 24 hours.
Next Topic: Cirrus Clouds
Weather Topic: What is Condensation?
Home - Education - Precipitation - Condensation
Next Topic: Contrails
Condensation is the process which creates clouds, and therefore
it is a crucial process in the water cycle.
Condensation is the change of matter from a state of gas into a state of liquid,
and it happens because water molecules release heat into the atmosphere and
become organized into a more closely packed structure, what we might see as
water droplets.
Water is always present in the air around us as a vapor, but it's too small for
us to see. When water undergoes the process of condensation it becomes organized
into visible water droplets. You've probably seen condensation happen before on the
surface of a cold drink!
Next Topic: Contrails
