Weather Alert in California

Recent Locations: Comanche, TX   Port Carbon, PA   Sanger, CA  

Coastal Flood Advisory issued June 26 at 9:42AM PDT until June 27 at 2:00AM PDT by NWS San Francisco CA

AREAS AFFECTED: San Francisco; North Bay Interior Valleys; San Francisco Bay Shoreline

DESCRIPTION: * WHAT...Minor coastal flooding expected during nocturnal high tide. * WHERE...Bayshore locations along the San Francisco Bay and San Pablo Bay. * WHEN...From 11 PM this evening to 2 AM PDT Friday. * IMPACTS...Flooding of lots, parks, and roads with only isolated road closures expected. * ADDITIONAL DETAILS...Low lying areas within the San Francisco Bay Area may see minor coastal flooding as a result during nocturnal high tide. San Francisco high tide is 6.66 ft at 12:38 AM Friday.

INSTRUCTION: If travel is required, allow extra time as some roads may be closed. Do not drive around barricades or through water of unknown depth. Take the necessary actions to protect flood-prone property.

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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

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