Weather Alert in California

Recent Locations: Beacon, NY   Grand Terrace, CA  
Current Alerts for Grand Terrace, CA: Severe Thunderstorm Warning Wind Advisory
Winter Storm Warning

Avalanche Warning issued February 17 at 6:11AM PST by NWS Las Vegas NV

AREAS AFFECTED: Eastern Sierra Slopes of Inyo County

DESCRIPTION: AVWVEF The Eastern Sierra Avalanche Center in Mammoth Lakes has issued a Backcountry Avalanche Warning for the following areas: the Eastern Sierra in Mono County and the Eastern Sierra in Inyo County * WHAT...Eastern Sierra Avalanche Center is issuing an avalanche warning due to High Avalanche Danger. * WHERE...Eastern High Sierra between Bishop Pass and Virginia Lakes. * WHEN...Until 7 AM Wednesday. * IMPACTS...Heavy snowfall and strong winds are rapidly loading a poor snowpack structure creating widespread areas of unstable snow. * PRECAUTIONARY / PREPAREDNESS ACTIONS...Very dangerous avalanche conditions. Travel in avalanche terrain is not recommended. Avalanches may run long distances and can run into mature forests, valley floors, or flat terrain. Consult http://www.esavalanche.org or www.avalanche.org for more detailed information Similar avalanche danger may exist at locations outside the coverage area of this or any avalanche center.

INSTRUCTION: N/A

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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.

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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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