Weather Alert in California
Flood Advisory issued February 18 at 1:33AM PST until February 18 at 6:00AM PST by NWS Los Angeles/Oxnard CA
AREAS AFFECTED: Los Angeles, CA
DESCRIPTION: * WHAT...Flooding caused by excessive rainfall is expected. * WHERE...A portion of southwest California, including the following county, A portion of Northern Los Angeles. * WHEN...Until 600 AM PST. * IMPACTS...Minor flooding in low-lying and poor drainage areas. Rock and mud slides possible. Minor debris flows possible. * ADDITIONAL DETAILS... - At 132 AM PST, Doppler radar indicated heavy showers across the region. Activity will continue through the pre-dawn hours of Wednesday. Minor flooding is ongoing or expected to begin shortly in the advisory area, and continue through the overnight hours. Rock and mud slides possible. Minor debris flows possible. - Some locations that will experience flooding include... Lake Los Angeles, Acton, Wrightwood, Palmdale, Pearblossom, Llano, Littlerock, Lake Palmdale, Valyermo, Desert View Highlands, Angeles Crest Highway between Mount Waterman and Wrightwood, Castaic Lake, Highway 138 between Llano and the San Bernardino County line, Big Pines, Pyramid Lake and Interstate 5 over the Grapevine. And burn scars across the Flood Advisory area. - http://www.weather.gov/safety/flood
INSTRUCTION: Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles.
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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
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
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