Weather Alerts for Alaska

Recent Locations: Long Island, ME Cuttyhunk, MA Copper Center, AK

1. Blizzard Warning for: St Lawrence Island

2. Flood Advisory for: SW Kenai Peninsula

3. High Surf Advisory for: SW Kenai Peninsula

4. Special Weather Statement for: Delta Junction; Tanana Flats; Eielson AFB and Salcha; Goldstream Valley and Nenana Hills; Fairbanks Metro Area; Nenana; Northern Denali Borough

5. Special Weather Statement for: Northern Seward Peninsula; Upper Kobuk Valleys; Shishmaref; Bering Strait Coast; Southern Seward Peninsula Coast; Interior Seward Peninsula; Lower Koyukuk Valley

6. Special Weather Statement for: South Slopes Of The Eastern Brooks Range; South Slopes Of The Central Brooks Range; Upper Koyukuk Valley; Yukon Flats

7. Special Weather Statement for: Thompson Pass

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

9. Wind Advisory for: Municipality of Skagway

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

11. Winter Storm Warning for: Eastern Norton Sound and Nulato Hills

12. Winter Storm Warning for: Lower Yukon and Innoko Valleys; Upper Kuskokwim Valley

13. Winter Storm Warning for: Middle Yukon Valley

14. Winter Storm Warning for: Yukon Delta Coast; Lower Yukon River

15. Winter Weather Advisory for: Dalton Highway Summits

16. Winter Weather Advisory for: Northern Copper Valley; Northern Susitna Valley

17. Winter Weather Advisory for: Shishmaref; Bering Strait Coast

18. Winter Weather Advisory for: Southern Denali Borough

19. Winter Weather Advisory for: White Mountains and High Terrain South of the Yukon River; Upper Chena River Valley; Chatanika River Valley; Two Rivers; Central Interior

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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 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