Weather Alerts for Alaska

Recent Locations: Arctic Village, AK  

1. Blizzard Warning for: Pribilof Islands

2. High Wind Watch for: Anchorage

3. Special Weather Statement for: Copper River Basin

4. Special Weather Statement for: East Turnagain Arm

5. Special Weather Statement for: Northeast Prince William Sound

6. Special Weather Statement for: Western Prince William Sound

7. Wind Advisory for: Eastern Alaska Range North of Trims Camp

8. Wind Advisory for: Northern Denali Borough

9. Winter Storm Watch for: Eastern Alaska Range South of Trims Camp

10. Winter Storm Watch for: Eastern Beaufort Sea Coast

11. Winter Storm Watch for: Shishmaref; Bering Strait Coast

12. Winter Storm Watch for: Southern Denali Borough

13. Winter Storm Watch for: Western Arctic Coast

14. Winter Weather Advisory for: Dalton Highway Summits

15. Winter Weather Advisory for: Interior Seward Peninsula

16. Winter Weather Advisory for: Kuskokwim Delta

17. Winter Weather Advisory for: Lower Koyukuk Valley

18. Winter Weather Advisory for: Lower Yukon and Innoko Valleys

19. Winter Weather Advisory for: Middle Yukon Valley

20. Winter Weather Advisory for: Northeast Prince William Sound

21. Winter Weather Advisory for: Northern Seward Peninsula

22. Winter Weather Advisory for: St Lawrence Island

23. Winter Weather Advisory for: Upper Kuskokwim Valley

24. Winter Weather Advisory for: Yukon Delta Coast; Lower Yukon River

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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).

Current U.S. National Radar

National Weather Forecast--Current

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

Today's National Weather Map

National Weather Forecast for Tomorrow

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

Tomorrows National Weather Map

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.

North American Water Vapor Map

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

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