Weather Alerts for Alaska
1. Flood Advisory for: Cordova
2. Flood Advisory for: Lower Matanuska Valley; Southern Susitna Valley; Central Susitna Valley; Northern Susitna Valley
3. Flood Advisory for: Northern Denali Borough
4. Flood Advisory for: Upper Kobuk Valleys
5. Flood Advisory for: Valdez
6. Flood Advisory for: Western Susitna Valley; Central Susitna Valley
7. Flood Warning for: Upper Koyukuk Valley
8. Flood Warning for: Western Susitna Valley; Southern Susitna Valley; Central Susitna Valley
9. Flood Watch for: South Slopes of the Western Brooks Range; Noatak Valley; Upper Kobuk Valleys; Lower Koyukuk Valley; Upper Koyukuk Valley
10. Flood Watch for: Western Susitna Valley; Southern Susitna Valley; Central Susitna Valley; Northern Susitna Valley
11. Heat Advisory for: Prince of Wales Island; Ketchikan Gateway Borough; City of Hyder; Annette Island
12. Hydrologic Outlook for: Kuskokwim Valley West; Kuskokwim Valley East; Interior Kuskokwim Delta; Western Capes; Northern Bristol Bay Coast; Inland Bristol Bay
13. Hydrologic Outlook for: Northern Bristol Bay Coast
14. Hydrologic Outlook for: Northern Denali Borough
15. Hydrologic Outlook for: South Slopes Of The Central Brooks Range; South Slopes of the Western Brooks Range; Noatak Valley; Lower Kobuk Valley; Upper Kobuk Valleys; Lower Koyukuk Valley; Upper Koyukuk Valley
16. Hydrologic Outlook for: South Slopes Of The Central Brooks Range; South Slopes of the Western Brooks Range; Noatak Valley; Lower Kobuk Valley; Upper Kobuk Valleys; Lower Koyukuk Valley; Upper Koyukuk Valley
17. Special Weather Statement for: Northern Copper Valley; Western Copper Valley; Central Copper Valley; Ernestine; Southern Copper Valley
18. Special Weather Statement for: Southern Kachemak Bay; SW Kenai Peninsula; NW Kenai Peninsula
19. Wind Advisory for: Dalton Highway Summits; Yukon Flats; White Mountains and High Terrain South of the Yukon River; Upper Chena River Valley; Tanana Flats; Eielson AFB and Salcha; Goldstream Valley and Nenana Hills; Chatanika River Valley; Two Rivers; Fairbanks Metro Area; Nenana; Central Interior
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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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