Weather Alerts for California
1. Air Quality Alert for: Riverside County Mountains; Coachella Valley; San Gorgonio Pass Near Banning
2. Fire Weather Watch for: Lower Middle Klamath; Hoopa; Van Duzen/Mad River; W Mendocino NF/E Mendocino Unit; Trinity
3. Fire Weather Watch for: Western Klamath National Forest; Central Siskiyou County Including Shasta Valley; Siskiyou County from the Cascade Mountains East and South to Mt Shasta
4. Red Flag Warning for: Eastern Portion of Shasta/Trinity NF; Burney Basin and Northeast Plateau in Shasta County Including Northwest Lassen NF north of Lassen NP; Southeast Edge Shasta/Trinity NF and Western Portions of Tehama/Glenn RU; Eastern Mendocino NF
5. Red Flag Warning for: Lower Middle Klamath; Hoopa; Van Duzen/Mad River; W Mendocino NF/E Mendocino Unit; Trinity
6. Red Flag Warning for: Northern Sierra Foothills from 1000 to 3000 Ft. Includes Nevada-Yuba-Placer RU and Anador-Eldorado RU; Northern Sierra Including Lassen NP and Plumas and Lassen NF/S West of the Sierra Crest - West of Evans Peak/Grizzly Peak/Beckworth Peak
7. Red Flag Warning for: Western Klamath National Forest; Central Siskiyou County Including Shasta Valley; Siskiyou County from the Cascade Mountains East and South to Mt Shasta
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Weather Topic: What is Freezing Rain?
Home - Education - Precipitation - Freezing Rain
Next Topic: Graupel
Freezing rain is a condition where precipitation which has fallen in the form of
water droplets reaches temperatures which are below freezing and freezes upon
coming into contact
with surface objects. The result of this precipitation is a glaze of ice which
can be damaging to plants and man-made structures. A severe onset of freezing
rain which results in a very thick glaze of ice is known as an ice storm.
Next Topic: Graupel
Weather Topic: What is Hail?
Home - Education - Precipitation - Hail
Next Topic: Hole Punch Clouds
Hail is a form of precipitation which is recognized by large solid balls or
clumps of ice. Hail is created by thunderstorm clouds with strong updrafts of wind.
As the hailstones remain in the updraft, ice is deposited onto them until their
weight becomes heavy enough for them to fall to the earth's surface.
Hail storms can cause significant damage to crops, aircrafts, and man-made structures,
despite the fact that the duration is usually less than ten minutes.
Next Topic: Hole Punch Clouds
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