Weather Alert in California

Fire Weather Watch issued July 22 at 10:49PM PDT until July 24 at 11:00PM PDT by NWS Eureka CA

AREAS AFFECTED: Upper Smith; Lower Middle Klamath; Hoopa; Van Duzen/Mad River; Trinity

DESCRIPTION: ...SCATTERED DRY THUNDERSTORMS POSSIBLE THURSDAY AFTERNOON AND EVENING ACROSS THE INTERIOR MOUNTAINS... .Scattered dry thunderstorms are forecast to develop in the Klamath Mountains Thursday afternoon and evening. The highest confidence of storms is in Siskiyou, Northern Humboldt, Eastern Del Norte, and Trinity counties. Some thunder potential also exists in southern Humboldt and in the Yolla Bollys. * AFFECTED AREA...Fire weather zone 203.Fire weather zone 204.Fire weather zone 211.Fire weather zone 212.Fire weather zone 283. This includes Trinity county, northeastern Humboldt and eastern Del Norte counties. * THUNDERSTORMS...Scattered thunderstorms are possible in the afternoon, mostly over the higher terrain. * OUTFLOW WINDS...Gusty and erratic outflow winds up to 40 mph are possible. * IMPACTS...Lightning strikes may start fires.

INSTRUCTION: A Fire Weather Watch means that critical fire weather conditions are forecast to occur. Listen for later forecasts and possible Red Flag Warnings.

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Weather Topic: What are Altocumulus Clouds?

Home - Education - Cloud Types - Altocumulus Clouds

Altocumulus Clouds Next Topic: Altostratus Clouds

Similar to cirrocumulus clouds, altocumulus clouds are characterized by cloud patches. They are distinguished by larger cloudlets than cirrocumulus clouds but are still smaller than stratocumulus clouds.

Altocumulus clouds most commonly form in middle altitudes (between 2 and 5 km) and may resemble, at times, the shape of a flying saucer. These uncommon formations, called altocumulus lenticularis, are created by uplift in the atmosphere and are most often seen in close proximity to mountains.

Next Topic: Altostratus Clouds

Weather Topic: What are Cirrocumulus Clouds?

Home - Education - Cloud Types - Cirrocumulus Clouds

Cirrocumulus Clouds Next Topic: Cirrostratus Clouds

Cirrocumulus clouds form at high altitudes (usually around 5 km) and have distinguishing characteristics displayed in a fine layer of small cloud patches. These small cloud patches are sometimes referred to as "cloudlets" in relation to the whole cloud formation.

Cirrocumulus clouds are formed from ice crystals and water droplets. Often, the water droplets in the cloud freeze into ice crystals and the cloud becomes a cirrostratus cloud. Because of this common occurrence, cirrocumulus cloud formations generally pass rapidly.

Next Topic: Cirrostratus Clouds

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