Weather Alerts for Alaska

Recent Locations: Holstein, NE Asotin, WA Mekoryuk, AK

1. Extreme Cold Watch for: Southern Kenai Mtns

2. Extreme Cold Watch for: Sutton / Upper Matanuska Valley; Eureka / Tahneta Pass; West Prince William Sound & Whittier; Northern Copper Valley; Western Copper Valley; Central Copper Valley; Ernestine; Northern Susitna Valley; Southern Copper Valley; Tok Cutoff; McCarthy

3. High Wind Warning for: Southern Kenai Mtns

4. High Wind Warning for: Thompson Pass

5. High Wind Watch for: Kodiak Island Northeast

6. Wind Advisory for: Valdez

7. Winter Storm Warning for: Central Beaufort Sea Coast; Eastern Beaufort Sea Coast; Central Arctic Plains; Central Brooks Range; Romanzof Mountains

8. Winter Storm Warning for: Dalton Highway Summits; White Mountains and High Terrain South of the Yukon River

9. Winter Storm Warning for: Northern Denali Borough

10. Winter Storm Warning for: 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

11. Winter Storm Warning for: Upper Koyukuk Valley

12. Winter Weather Advisory for: Bering Strait Coast

13. Winter Weather Advisory for: Central Copper Valley; Tok Cutoff

14. Winter Weather Advisory for: Glacier Bay; City and Borough of Juneau

15. Winter Weather Advisory for: Kivalina and Red Dog Dock; Baldwin Peninsula

16. Winter Weather Advisory for: Northern Seward Peninsula

17. Winter Weather Advisory for: Petersburg Borough

18. Winter Weather Advisory for: Upper Tanana Valley; Delta Junction; Eastern Alaska Range North of Trims Camp

19. Winter Weather Advisory for: Yukon Flats; Fortymile Country

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 is Evaporation?

Home - Education - Precipitation - Evaporation

Next Topic: Fog

Evaporation is the process which returns water from the earth back to the atmosphere, and is another crucial process in the water cycle.

Evaporation is the transformation of liquid into gas, and it happens because molecules are excited by the application of energy and turn into vapor. In order for water to evaporate it has to be on the surface of a body of water.

Next Topic: Fog

Weather Topic: What are Fractus Clouds?

Home - Education - Cloud Types - Fractus Clouds

Fractus Clouds Next Topic: Freezing Rain

A fractus cloud (scud) is a fragmented, tattered cloud which has likely been sheared off of another cloud. They are accessory clouds, meaning they develop from parent clouds, and are named in a way which describes the original cloud which contained them.

Fractus clouds which have originated from cumulus clouds are referred to as cumulus fractus, while fractus clouds which have originated from stratus clouds are referred to as stratus fractus. Under certain conditions a fractus cloud might merge with another cloud, or develop into a cumulus cloud, but usually a fractus cloud seen by itself will dissipate rapidly.

They are often observed on the leading and trailing edges of storm clouds, and are a display of wind activity.

Next Topic: Freezing Rain