Weather Alerts for Maine

Recent Locations: Ocean View, DE Dexter, ME Atkinson, NE

Current Alerts for Dexter, ME: Winter Storm Warning Winter Storm Watch

1. Coastal Flood Watch for: Coastal York; Coastal Rockingham

2. Winter Storm Warning for: Androscoggin; Kennebec

3. Winter Storm Warning for: Central Interior Cumberland; Southern Carroll; Merrimack; Belknap

4. Winter Storm Warning for: Interior Waldo; Sagadahoc; Lincoln; Knox; Coastal Waldo

5. Winter Storm Warning for: Interior York; Coastal York; Coastal Cumberland; Strafford; Cheshire; Eastern Hillsborough; Interior Rockingham; Western And Central Hillsborough

6. Winter Storm Warning for: Southern Penobscot; Interior Hancock; Central Washington; Coastal Hancock; Coastal Washington; Northern Washington

7. Winter Storm Watch for: Southeast Aroostook; Central Penobscot; Southern Piscataquis

8. Winter Weather Advisory for: Southern Oxford; Southern Franklin; Southern Somerset; Interior Cumberland Highlands; Northern Carroll; Sullivan

Want more detail? Get the Complete 7 Day and Night Detailed Forecast!

Current U.S. National Radar--Current

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National Weather Forecast--Current

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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