Weather Alerts for California
1. Extreme Heat Warning for: Western Siskiyou County; Central Siskiyou County
2. Flash Flood Warning for: San Diego, CA
3. Flash Flood Warning for: San Diego, CA
4. Flood Advisory for: Fresno, CA
5. Flood Advisory for: Fresno, CA
6. Flood Advisory for: Kern, CA
7. Flood Advisory for: Kern, CA
8. Flood Advisory for: Madera, CA; Mariposa, CA
9. Flood Advisory for: Riverside, CA
10. Flood Advisory for: Riverside, CA
11. Flood Advisory for: San Diego, CA
12. Flood Advisory for: Sierra, CA
13. Flood Watch for: Lassen-Eastern Plumas-Eastern Sierra Counties; Greater Lake Tahoe Area; Mono; Mineral and Southern Lyon Counties; Greater Lake Tahoe Area; Greater Reno-Carson City-Minden Area
14. Flood Watch for: Yosemite NP outside of the valley; Yosemite Valley; San Joaquin River Canyon; Upper San Joaquin River; Kaiser to Rodgers Ridge; Kings Canyon NP; Grant Grove Area; Sequoia NP; South End of the Upper Sierra
15. Red Flag Warning for: Trinity
16. Red Flag Warning for: Western Klamath National Forest; Central Siskiyou County Including Shasta Valley; Shasta-Trinity National Forest in Siskiyou County; Siskiyou County from the Cascade Mountains East and South to Mt Shasta; Modoc County Except for the Surprise Valley; Umpqua National Forest; Western Rogue Basin including the Illinois Valley; Siskiyou Mountains; Eastern Rogue Valley; Southern Oregon Cascades; Klamath Basin and the Fremont-Winema National Forest; South Central Oregon Desert including the BLM Land in Eastern Lake and Western Harney Counties
17. Red Flag Warning for: Western Klamath National Forest; Central Siskiyou County Including Shasta Valley; Shasta-Trinity National Forest in Siskiyou County; Siskiyou County from the Cascade Mountains East and South to Mt Shasta; Modoc County Except for the Surprise Valley; Umpqua National Forest; Western Rogue Basin including the Illinois Valley; Siskiyou Mountains; Eastern Rogue Valley; Southern Oregon Cascades; Klamath Basin and the Fremont-Winema National Forest; South Central Oregon Desert including the BLM Land in Eastern Lake and Western Harney Counties
18. Severe Thunderstorm Warning for: Imperial, CA
19. Severe Thunderstorm Warning for: Imperial, CA
20. Severe Thunderstorm Warning for: Riverside, CA
21. Severe Thunderstorm Warning for: San Diego, CA
22. Special Weather Statement for: Greater Lake Tahoe Area
23. Special Weather Statement for: Kaiser to Rodgers Ridge; Kings Canyon NP
24. Special Weather Statement for: Lassen-Eastern Plumas-Eastern Sierra Counties
25. Special Weather Statement for: San Bernardino and Riverside County Valleys-The Inland Empire; San Bernardino County Mountains; Riverside County Mountains; Coachella Valley; San Gorgonio Pass Near Banning
26. Special Weather Statement for: Southern Trinity
27. Special Weather Statement for: West Slope Northern Sierra Nevada
28. Special Weather Statement for: Western San Gabriel Mountains and Highway 14 Corridor; Eastern San Gabriel Mountains; Western Antelope Valley Foothills; Eastern Antelope Valley Foothills; Antelope Valley
29. Special Weather Statement for: Yosemite NP outside of the valley
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North America Water Vapor (Moisture)
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Weather Topic: What are Cumulonimbus Clouds?
Home - Education - Cloud Types - 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
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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