Weather Alert in California

Recent Locations: Vallejo, CA  

Flood Watch issued March 13 at 1:29PM PDT until March 13 at 6:00PM PDT by NWS San Diego CA

AREAS AFFECTED: San Diego County Coastal Areas; San Bernardino and Riverside County Valleys-The Inland Empire; San Diego County Inland Valleys; San Bernardino County Mountains; Riverside County Mountains; Santa Ana Mountains and Foothills; San Diego County Mountains; Orange County Coastal; Orange County Inland

DESCRIPTION: * WHAT...Flooding caused by excessive rainfall is possible. * WHERE...A portion of Southwest California, including the following areas, Orange County Coastal Areas, Orange County Inland Areas, Riverside County Mountains, San Bernardino County Mountains, San Bernardino and Riverside County Valleys-The Inland Empire, San Diego County Coastal Areas, San Diego County Mountains, San Diego County Valleys and Santa Ana Mountains and Foothills. * WHEN...Until 6 PM PDT this evening. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Debris flow are possible near recent burn scars. Areas of flooding possible in the mountains below the snow level. * ADDITIONAL DETAILS... - Lingering isolated showers and thunderstorms will continue through the evening with hourly rain rates locally near 0.40" inches per hour. This watch includes the following burn scars: Bridge, Line, and Airport. - https://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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Current U.S. National Radar--Current

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North America Water Vapor (Moisture)

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Weather Topic: What are Stratocumulus Clouds?

Home - Education - Cloud Types - Stratocumulus Clouds

Stratocumulus Clouds Next Topic: Stratus Clouds

Stratocumulus clouds are similar to altocumulus clouds in their fluffy appearance, but have a slightly darker shade due to their additional mass.

A good way to distinguish the two cloud types is to hold your hand out and measure the size of an individual cloud; if it is the size of your thumb it is generally an altocumulus cloud, if it is the size of your hand it is generally a stratocumulus cloud.

It is uncommon for stratocumulus clouds to produce precipitation, but if they do it is usually a light rain or snow.

Next Topic: Stratus Clouds

Weather Topic: What are Wall Clouds?

Home - Education - Cloud Types - Wall Clouds

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