Weather Alert in California

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Severe Thunderstorm Warning issued August 25 at 2:42PM PDT until August 25 at 3:15PM PDT by NWS Phoenix AZ

AREAS AFFECTED: Imperial, CA

DESCRIPTION: SVRPSR The National Weather Service in Phoenix has issued a * Severe Thunderstorm Warning for... West central Imperial County in southeastern California... * Until 315 PM PDT. * At 242 PM PDT, a severe thunderstorm was located near Ocotillo Wells, or 9 miles southeast of Hwy 78 Between Borrego Springs Rd And Ocotillo Wells, moving northwest at 20 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. * Locations impacted include... Fish Creek Wash. This includes the following highways... CA Route 78 between mile markers 1 and 13. CA Route 86 between mile markers 34 and 52.

INSTRUCTION: For your protection move to an interior room on the lowest floor of a building.

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Weather Topic: What are Cumulonimbus Clouds?

Home - Education - Cloud Types - Cumulonimbus Clouds

Cumulonimbus Clouds Next Topic: Cumulus Clouds

The final form taken by a growing cumulus cloud is the cumulonimbus cloud, which is very tall and dense. The tower of a cumulonimbus cloud can soar 23 km into the atmosphere, although most commonly they stop growing at an altitude of 6 km.

Even small cumulonimbus clouds appear very large in comparison to other cloud types. They can signal the approach of stormy weather, such as thunderstorms or blizzards.

Next Topic: Cumulus Clouds

Weather Topic: What is Drizzle?

Home - Education - Precipitation - Drizzle

Drizzle Next Topic: Evaporation

Drizzle is precipitation in the form of water droplets which are smaller than raindrops.

Drizzle is characterized by fine, gently falling droplets and typically does not impact human habitation in a negative way. The exception to this is freezing drizzle, a condition where drizzle freezes immediately upon reaching earth's surface. Freezing drizzle is still less dangerous than freezing rain, but can potentially result in hazardous road conditions.

Next Topic: Evaporation

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