Weather Alerts for Oregon

Recent Locations: Ruidoso, NM Rulo, NE Saint Paul, OR

Current Alerts for Saint Paul, OR: Winter Weather Advisory

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

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

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

4. Winter Storm Warning for: Central Douglas County

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

6. Winter Storm Warning for: Jackson County

7. Winter Weather Advisory for: Central Douglas County

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

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

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

11. Winter Weather Advisory for: Jackson County

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

13. 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

14. 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 is Precipitation?

Home - Education - 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

Weather Topic: What are Shelf Clouds?

Home - Education - Cloud Types - Shelf Clouds

Shelf Clouds Next Topic: Sleet

A shelf cloud is similar to a wall cloud, but forms at the front of a storm cloud, instead of at the rear, where wall clouds form.

A shelf cloud is caused by a series of events set into motion by the advancing storm; first, cool air settles along the ground where precipitation has just fallen. As the cool air is brought in, the warmer air is displaced, and rises above it, because it is less dense. When the warmer air reaches the bottom of the storm cloud, it begins to cool again, and the resulting condensation is a visible shelf cloud.

Next Topic: Sleet