Weather Alert in California
Special Weather Statement issued August 23 at 10:40AM PDT by NWS Los Angeles/Oxnard CA
AREAS AFFECTED: Western San Gabriel Mountains and Highway 14 Corridor; Eastern San Gabriel Mountains; Western Antelope Valley Foothills; Eastern Antelope Valley Foothills; Antelope Valley
DESCRIPTION: At 1040 AM PDT, Doppler radar was tracking a cluster of strong thunderstorms was developing from near Llano to Saddleback Butte, moving northwest at 20 mph. HAZARD...Erratic wind gusts of 40 to 50 mph. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and powerlines, produce blowing dust with low visibilities, as well as blow around unsecured objects. This strong thunderstorm will be near... Lake Los Angeles and Llano around 1040 AM PDT. Palmdale around 1050 AM PDT. Lancaster around 1110 AM PDT. Other locations impacted by this storm include Valyermo, Big Pines, Falling Springs, Angeles Crest Highway between Mount Waterman and Wrightwood, and Highway 138 between Llano and the San Bernardino County line.
INSTRUCTION: If outdoors, consider seeking shelter inside a building until the storm passes. Frequent cloud to ground lightning is occurring with this storm. Lightning can strike 10 miles away from a thunderstorm. Seek a safe shelter inside a building or vehicle. This storm may intensify. Continue to monitor the situation through local media sources and the National Weather Service.
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Weather Topic: What are Nimbostratus Clouds?
Home - Education - Cloud Types - Nimbostratus Clouds
Next Topic: Precipitation
A nimbostratus cloud is similar to a stratus cloud in its formless,
smooth appearance. However, a nimbostratus cloud is darker than a stratus cloud,
because it is thicker.
Unlike a stratus cloud, a nimbostratus cloud typically brings with it the threat
of moderate to heavy precipitation. In some cases, the precipitation may evaporate
before reaching the ground, a phenomenon known as virga.
Next Topic: Precipitation
Weather Topic: What is Rain?
Home - Education - Precipitation - Rain
Next Topic: Shelf Clouds
Precipitation in the form of water droplets is called rain.
Rain generally has a tendency to fall with less intensity over a greater period
of time, and when rainfall is more severe it is usually less sustained.
Rain is the most common form of precipitation and happens with greater frequency
depending on the season and regional influences. Cities have been shown to have
an observable effect on rainfall, due to an effect called the urban heat island.
Compared to upwind, monthly rainfall between twenty and forty miles downwind of
cities is 30% greater.
Next Topic: Shelf Clouds
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