Weather Alerts for Alaska

Recent Locations: Henning, IL Juneau, AK

1. Blizzard Warning for: Central Alaska Peninsula; Chignik; Southern Alaska Peninsula

2. Blizzard Warning for: Northern Alaska Peninsula; Bristol Bay Borough (Naknek and King Salmon); Northern Bristol Bay Coast

3. Blizzard Warning for: Shishmaref; Bering Strait Coast

4. Special Weather Statement for: Municipality of Skagway; Haines Borough and Klukwan; Glacier Bay; Eastern Chichagof Island; Cape Fairweather to Lisianski Strait; City and Borough of Sitka; Admiralty Island; City and Borough of Juneau; Petersburg Borough; Western Kupreanof and Kuiu Island; Prince of Wales Island; City and Borough of Wrangell; Ketchikan Gateway Borough; City of Hyder; Annette Island

5. Wind Advisory for: Municipality of Skagway

6. Winter Storm Warning for: Eastern Alaska Range South of Trims Camp

7. Winter Storm Warning for: SW Kenai Peninsula; NW Kenai Peninsula

8. Winter Weather Advisory for: Anchorage; Anchorage Hillside / Eagle River; Lower Matanuska Valley

9. Winter Weather Advisory for: Cordova

10. Winter Weather Advisory for: Dalton Highway Summits; White Mountains and High Terrain South of the Yukon River; Fortymile Country

11. Winter Weather Advisory for: Delta Junction; Tanana Flats

12. Winter Weather Advisory for: East Turnagain Arm; Portage; Southern Kenai Mtns; Interior Kenai Peninsula; Turnagain Pass; West Prince William Sound & Whittier

13. Winter Weather Advisory for: Eastern Alaska Range North of Trims Camp

14. Winter Weather Advisory for: Eastern Aleutians

15. Winter Weather Advisory for: Inland Bristol Bay; Lake Iliamna / Nila Vena / Nanvarpak

16. Winter Weather Advisory for: Kivalina and Red Dog Dock

17. Winter Weather Advisory for: Municipality of Skagway

18. Winter Weather Advisory for: Northern Denali Borough; Southern Denali Borough

19. Winter Weather Advisory for: Skilak Lake

20. Winter Weather Advisory for: Southern Copper Valley; McCarthy

21. Winter Weather Advisory for: Southern Kachemak Bay

22. Winter Weather Advisory for: Thompson Pass; Ernestine

23. Winter Weather Advisory for: Tyonek

24. Winter Weather Advisory for: Upper Chena River Valley; Eielson AFB and Salcha; Goldstream Valley and Nenana Hills; Chatanika River Valley; Two Rivers; Fairbanks Metro Area; Nenana; Central Interior

25. Winter Weather Advisory for: Western Arctic Coast

26. Winter Weather Advisory for: Western Susitna Valley; Southern Susitna Valley; Central Susitna Valley; Northern Susitna Valley

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Current U.S. National Radar--Current

The Current National Weather Radar is shown below with a UTC Time (subtract 5 hours from UTC to get Eastern Time).

National Weather Forecast--Current

The Current National Weather Forecast and National Weather Map are shown below.

National Weather Forecast for Tomorrow

Tomorrow National Weather Forecast and Tomorrow National Weather Map are show below.

North America Water Vapor (Moisture)

This map shows recent moisture content over North America. Bright and colored areas show high moisture (ie, clouds); brown indicates very little moisture present; black indicates no moisture.

Weather Topic: What are Mammatus Clouds?

Home - Education - Cloud Types - Mammatus Clouds

Mammatus Clouds Next Topic: Nimbostratus Clouds

A mammatus cloud is a cloud with a unique feature which resembles a web of pouches hanging along the base of the cloud.

In the United States, mammatus clouds tend to form in the warmer months, commonly in the Midwest and eastern regions.

While they usually form at the bottom of a cumulonimbis cloud, they can also form under altostratus, altocumulus, stratocumulus, and cirrus clouds. Mammatus clouds warn that severe weather is close.

Next Topic: Nimbostratus Clouds

Weather Topic: What is Precipitation?

Home - Education - Precipitation - Precipitation

Next Topic: Rain

Precipitation can refer to many different forms of water that may fall from clouds. Precipitation occurs after a cloud has become saturated to the point where its water particles are more dense than the air below the cloud.

In most cases, precipitation will reach the ground, but it is not uncommon for precipitation to evaporate before it reaches the earth's surface. When precipitation evaporates before it contacts the ground it is called Virga. Graupel, hail, sleet, rain, drizzle, and snow are forms of precipitation, but fog and mist are not considered precipitation because the water vapor which constitutes them isn't dense enough to fall to the ground.

Next Topic: Rain