Weather Alert in California
Avalanche Warning issued February 24 at 5:44AM PST by NWS Reno NV
AREAS AFFECTED: Greater Lake Tahoe Area; Greater Lake Tahoe Area
DESCRIPTION: AVWREV The following message is transmitted at the request of the U.S. Forest Service Sierra Avalanche Center. BACKCOUNTRY AVALANCHE WARNING IMMEDIATE BROADCAST REQUESTED 05:30 PST Tue Feb 24 2026 The Sierra Avalanche Center in Truckee has issued a BACKCOUNTRY AVALANCHE WARNING for the following areas: NWS Reno NV - NVZ002 (Greater Lake Tahoe)...CAZ072 (Greater Lake Tahoe (CA)) * WHAT...HIGH avalanche danger exists in the backcountry. Large avalanches are expected across backcountry terrain. * WHERE...Central Sierra Nevada Mountains between Yuba Pass (Hwy 49) on the north and Ebbetts Pass (Hwy 4) on the south, including the greater Lake Tahoe area. This applies only to backcountry areas, not to ski areas and highways where avalanche mitigation programs exist. * WHEN...In effect from Tue 05:30 PST to Wed 07:00 PST. * IMPACTS...Significant rain on snow at all elevations will create widespread dangerous avalanche conditions in the mountains. Large avalanches capable of burying or injuring people are very likely in backcountry areas. Avalanches could travel farther downslope than usual and may run into areas traditionally thought of as safe. Natural avalanches are likely, and human-triggered avalanches are very likely. * PRECAUTIONARY / PREPAREDNESS ACTIONS...Very dangerous avalanche conditions exist in the backcountry. Traveling in, near, or below backcountry avalanche terrain is not recommended during HIGH avalanche danger. Consult https://www.sierraavalanchecenter.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.
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Weather Topic: What are Cumulus Clouds?
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Cumulus clouds are fluffy and textured with rounded tops, and
may have flat bottoms. The border of a cumulus cloud
is clearly defined, and can have the appearance of cotton or cauliflower.
Cumulus clouds form at low altitudes (rarely above 2 km) but can grow very tall,
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Weather Topic: What is Evaporation?
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Evaporation is the process which returns water from the earth
back to the atmosphere, and is another crucial process in the water cycle.
Evaporation is the transformation of liquid into gas, and it happens because
molecules are excited by the application of energy and turn into vapor.
In order for water to evaporate it has to be on the surface of a body of water.
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