Weather Alerts for Oregon

Recent Locations: La Moille, IL Sisters, OR Colfax, IN

1. Beach Hazards Statement for: Clatsop County Coast; Tillamook County Coast; Central Coast of Oregon; South Washington Coast

2. Dense Fog Advisory for: Central Oregon

3. Dense Fog Advisory for: Foothills of the Northern Blue Mountains of Oregon

4. Dense Fog Advisory for: Foothills of the Southern Blue Mountains of Oregon

5. Dense Fog Advisory for: North Central Oregon

6. Freeze Watch for: South Central Oregon Coast; Curry County Coast

7. Winter Storm Warning for: Central Douglas County

8. Winter Storm Warning for: Eastern Curry County and Josephine County

9. Winter Storm Warning for: Jackson County

10. Winter Weather Advisory for: Central Douglas County

11. Winter Weather Advisory for: East Slopes of the Oregon Cascades

12. Winter Weather Advisory for: Eastern Curry County and Josephine County

13. Winter Weather Advisory for: Eastern Douglas County Foothills; South Central Oregon Cascades; Siskiyou Mountains and Southern Oregon Cascades

14. Winter Weather Advisory for: Jackson County

15. Winter Weather Advisory for: North Oregon Cascades; Cascades of Marion and Linn Counties; Cascades of Lane County; South Washington Cascades

16. Winter Weather Advisory for: North Oregon Coast Range; Central Oregon Coast Range; Clackamas County Cascade Foothills; Cascade Foothills of Marion and Linn Counties; Lane County Cascade Foothills; Willapa Hills; South Washington Cascade Foothills

17. Winter Weather Advisory for: Northern Blue Mountains of Oregon; Northwest Blue Mountains

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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 are Cumulonimbus Clouds?

Home - Education - Cloud Types - Cumulonimbus Clouds

Cumulonimbus Clouds Next Topic: Cumulus Clouds

The final form taken by a growing cumulus cloud is the cumulonimbus cloud, which is very tall and dense. The tower of a cumulonimbus cloud can soar 23 km into the atmosphere, although most commonly they stop growing at an altitude of 6 km.

Even small cumulonimbus clouds appear very large in comparison to other cloud types. They can signal the approach of stormy weather, such as thunderstorms or blizzards.

Next Topic: Cumulus Clouds

Weather Topic: What is Drizzle?

Home - Education - Precipitation - Drizzle

Drizzle Next Topic: Evaporation

Drizzle is precipitation in the form of water droplets which are smaller than raindrops.

Drizzle is characterized by fine, gently falling droplets and typically does not impact human habitation in a negative way. The exception to this is freezing drizzle, a condition where drizzle freezes immediately upon reaching earth's surface. Freezing drizzle is still less dangerous than freezing rain, but can potentially result in hazardous road conditions.

Next Topic: Evaporation