Weather Alerts for Idaho
1. Freeze Warning for: Lower Treasure Valley; Upper Treasure Valley; Western Magic Valley; Oregon Lower Treasure Valley
2. Freeze Warning for: Lower Treasure Valley; Upper Treasure Valley; Western Magic Valley; Oregon Lower Treasure Valley
3. Freeze Watch for: Arco/Mud Lake Desert
4. Freeze Watch for: Shoshone/Lava Beds; Upper Snake River Plain; Lower Snake River Plain; Eastern Magic Valley
5. Wind Advisory for: Arco/Mud Lake Desert
6. Wind Advisory for: Beaverhead/Lemhi Highlands
7. Wind Advisory for: Southwest Highlands; Southern Twin Falls County; Harney County; Malheur County
8. Winter Weather Advisory for: Bear River Range; Centennial Mountains/Island Park
9. Winter Weather Advisory for: Central Panhandle Mountains
10. Winter Weather Advisory for: Frank Church Wilderness; Sawtooth/Stanley Basin; Sun Valley Region; Big Lost Highlands/Copper Basin
11. Winter Weather Advisory for: Northern Clearwater Mountains; Southern Clearwater Mountains
12. Winter Weather Advisory for: Western Lemhi County; Eastern Lemhi County
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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
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 Nimbostratus Clouds?
Home - Education - Cloud Types - 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
Weather Topic: What is Rain?
Home - Education - Precipitation - Rain
Next Topic: Shelf Clouds
Precipitation in the form of water droplets is called rain.
Rain generally has a tendency to fall with less intensity over a greater period
of time, and when rainfall is more severe it is usually less sustained.
Rain is the most common form of precipitation and happens with greater frequency
depending on the season and regional influences. Cities have been shown to have
an observable effect on rainfall, due to an effect called the urban heat island.
Compared to upwind, monthly rainfall between twenty and forty miles downwind of
cities is 30% greater.
Next Topic: Shelf Clouds
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