Weather Alerts for Alaska

Recent Locations: Sumter, SC Fairbanks, AK Buckner, KY

1. High Wind Watch for: Kodiak Island Northeast

2. High Wind Watch for: Thompson Pass

3. Special Weather Statement for: City and Borough of Juneau

4. Wind Advisory for: Southern Kenai Mtns; West Prince William Sound & Whittier

5. Wind Advisory for: Upper Tanana Valley

6. Wind Advisory for: Valdez

7. Winter Storm Warning for: Cape Fairweather to Lisianski Strait

8. Winter Storm Warning for: City and Borough of Sitka

9. Winter Storm Warning for: City and Borough of Yakutat

10. Winter Storm Warning for: Northern Denali Borough

11. Winter Storm Warning for: Prince of Wales Island

12. Winter Storm Warning for: Upper Koyukuk Valley

13. Winter Storm Warning for: 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

14. Winter Storm Watch for: Noatak Valley; Kivalina and Red Dog Dock; Lower Kobuk Valley; Baldwin Peninsula

15. Winter Storm Watch for: Northern Seward Peninsula; Shishmaref; Bering Strait Coast; Southern Seward Peninsula Coast; Interior Seward Peninsula

16. Winter Storm Watch for: Western Arctic Coast

17. Winter Weather Advisory for: City and Borough of Juneau

18. Winter Weather Advisory for: Glacier Bay; Eastern Chichagof Island; Admiralty Island

19. Winter Weather Advisory for: Ketchikan Gateway Borough; Annette Island

20. Winter Weather Advisory for: Petersburg Borough; Western Kupreanof and Kuiu Island; City and Borough of Wrangell

Want more detail? Get the Complete 7 Day and Night Detailed Forecast!

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