Weather Alerts for Washington

Recent Locations: Roslyn, WA

1. Blizzard Warning for: Cascades of Southern King County; Cascades of Pierce and Lewis Counties

2. Blizzard Warning for: Cascades of Whatcom and Skagit Counties; Cascades of Snohomish and Northern King Counties

3. Blizzard Warning for: Olympics

4. Flood Watch for: Mason, WA

5. Hydrologic Outlook for: Grays Harbor, WA; Lewis, WA; Thurston, WA

6. Winter Storm Warning for: Cascades of Whatcom and Skagit Counties; Cascades of Snohomish and Northern King Counties

7. Winter Storm Warning for: South Washington Cascades

8. Winter Storm Warning for: Upper Slopes of the Eastern Washington Cascades Crest

9. Winter Storm Warning for: Western Chelan County

10. Winter Storm Watch for: Cascades of Southern King County; Cascades of Pierce and Lewis Counties

11. Winter Storm Watch for: Cascades of Whatcom and Skagit Counties; Cascades of Snohomish and Northern King Counties

12. Winter Storm Watch for: Olympics

13. Winter Storm Watch for: Western Chelan County

14. Winter Weather Advisory for: Cascades of Southern King County; Cascades of Pierce and Lewis Counties

15. Winter Weather Advisory for: Cascades of Whatcom and Skagit Counties; Cascades of Snohomish and Northern King Counties

16. Winter Weather Advisory for: Foothills and Valleys of Snohomish and Northern King Counties

17. Winter Weather Advisory for: South Washington Cascades

18. Winter Weather Advisory for: Upper Slopes of the Eastern Washington Cascades Crest

19. Winter Weather Advisory for: Western Strait of Juan de Fuca; Lake Crescent Area Including US 101

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Current U.S. National Radar--Current

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National Weather Forecast--Current

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National Weather Forecast for Tomorrow

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North America Water Vapor (Moisture)

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Weather Topic: What are Hole Punch Clouds?

Home - Education - Cloud Types - Hole Punch Clouds

Hole Punch Clouds Next Topic: Mammatus Clouds

A hole punch cloud is an unusual occurrence when a disk-shaped hole appears in a cirrostratus, cirrocumulus, or altocumulus cloud.

When part of the cloud forms ice crystals, water droplets in the surrounding area of the cloud evaporate. The effect of this process produces a large elliptical gap in the cloud. The hole punch cloud formation is rare, but it is not specific to any geographic area.

Other names which have been used to describe this phenomena include fallstreak hole, skypunch, and cloud hole.

Next Topic: Mammatus Clouds

Weather Topic: What are Nimbostratus Clouds?

Home - Education - Cloud Types - Nimbostratus Clouds

Nimbostratus Clouds Next Topic: Precipitation

A nimbostratus cloud is similar to a stratus cloud in its formless, smooth appearance. However, a nimbostratus cloud is darker than a stratus cloud, because it is thicker.

Unlike a stratus cloud, a nimbostratus cloud typically brings with it the threat of moderate to heavy precipitation. In some cases, the precipitation may evaporate before reaching the ground, a phenomenon known as virga.

Next Topic: Precipitation