Weather Alert in California

Current Alerts for Los Angeles International Airport, CA: Special Weather Statement

Red Flag Warning issued July 29 at 12:56PM PDT until July 30 at 11:00PM PDT by NWS Eureka CA

AREAS AFFECTED: Lower Middle Klamath; Trinity

DESCRIPTION: ...RED FLAG WARNING FOR ABUNDANT LIGHTNING ON DRY FUELS FOR FIRE WEATHER ZONES 283 AND 204 WEDNESDAY AFTERNOON AND EVENING... The National Weather Service in Eureka has issued a Red Flag Warning for abundant lightning on dry fuels, which is in effect from 2 PM to 11 PM PDT Wednesday. The Fire Weather Watch is no longer in effect. * THUNDERSTORMS...Scattered wet and dry thunderstorms across northern Trinity, northeast Humboldt and eastern Del Norte Counties Wednesday afternoon and evening. * OUTFLOW WINDS...Gusts from 30 to 50 mph up to 25 miles outside from thunderstorm centers possible. * IMPACTS...Abundant lightning on dry fuels resulting in the potential for numerous fire starts.

INSTRUCTION: A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior.

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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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