Weather Alert in California

Current Alerts for San Marcos, CA: High Surf Advisory Wind Advisory
Winter Weather Advisory

High Wind Warning issued February 17 at 2:52AM PST until February 18 at 6:00AM PST by NWS Los Angeles/Oxnard CA

AREAS AFFECTED: Antelope Valley

DESCRIPTION: * WHAT...For the Wind Advisory, southwest winds 25 to 30 mph with gusts up to 50 mph expected. For the High Wind Warning, southwest winds 25 to 35 mph with gusts up to 65 mph expected. * WHERE...Antelope Valley. * WHEN...For the Wind Advisory, from 3 PM this afternoon to 10 PM PST this evening. For the High Wind Warning, from 10 PM this evening to 6 AM PST Wednesday. * IMPACTS...Damaging winds could blow down trees and power lines. Widespread power outages are possible. Travel will be difficult, especially for high profile vehicles. Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.

INSTRUCTION: Remain in the lower levels of your home during the windstorm, and avoid windows. Watch for falling debris and tree limbs. Use caution if you must drive. Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution.

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Weather Topic: What are Nimbostratus Clouds?

Home - Education - Cloud Types - Nimbostratus Clouds

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.

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Weather Topic: What is Rain?

Home - Education - Precipitation - Rain

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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