Weather Alerts for Idaho
1. Air Quality Alert for: Clearwater, ID; Idaho, ID
2. Air Quality Alert for: Latah, ID; Lewis, ID; Nez Perce, ID
3. Air Quality Alert for: Lewis, ID; Nez Perce, ID
4. Air Quality Alert for: Orofino/Grangeville Region
5. Air Quality Alert for: Teton, ID
6. Flash Flood Watch for: West Central Mountains; Lower Treasure Valley; Boise Mountains; Upper Treasure Valley; Southwest Highlands; Western Magic Valley; Camas Prairie; Owyhee Mountains; Southern Twin Falls County; Upper Weiser River; Baker County; Malheur County; Oregon Lower Treasure Valley
7. Flood Watch for: Idaho, ID; Lemhi, ID
8. Flood Watch for: Sawtooth/Stanley Basin
9. Flood Watch for: Shoshone/Lava Beds; Arco/Mud Lake Desert; Upper Snake River Plain; Lower Snake River Plain; Eastern Magic Valley; Southern Hills/Albion Mountains; Raft River Region; Marsh and Arbon Highlands; Franklin/Eastern Oneida Region; Bear River Range; Bear Lake Valley; Blackfoot Mountains; Caribou Range; Big Hole Mountains; Teton Valley; Centennial Mountains/Island Park; Beaverhead/Lemhi Highlands; Lost River Valleys; Lost River Range; Challis/Pahsimeroi Valleys; Frank Church Wilderness; Sun Valley Region; Big Lost Highlands/Copper Basin; Wood River Foothills
10. Hydrologic Outlook for: Clearwater, ID; Deer Lodge, MT; Granite, MT; Mineral, MT; Missoula, MT; Powell, MT; Silver Bow, MT
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North America Water Vapor (Moisture)
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Weather Topic: What is Sleet?
Home - Education - Precipitation - Sleet
Next Topic: Snow
Sleet is a form of precipitation in which small ice pellets are the primary
components. These ice pellets are smaller and more translucent than hailstones,
and harder than graupel. Sleet is caused by specific atmospheric conditions and
therefore typically doesn't last for extended periods of time.
The condition which leads to sleet formation requires a warmer body of air to be
wedged in between two sub-freezing bodies of air. When snow falls through a warmer
layer of air it melts, and as it falls through the next sub-freezing body of air
it freezes again, forming ice pellets known as sleet. In some cases, water
droplets don't have time to freeze before reaching the surface and the result is
freezing rain.
Next Topic: Snow
Weather Topic: What are Stratocumulus Clouds?
Home - Education - Cloud Types - Stratocumulus Clouds
Next Topic: Stratus Clouds
Stratocumulus clouds are similar to altocumulus clouds in their
fluffy appearance, but have a slightly darker shade due to their additional mass.
A good way to distinguish the two cloud types is to hold your hand out and measure
the size of an individual cloud; if it is the size of your thumb it is generally
an altocumulus cloud, if it is the size of your hand it is generally a
stratocumulus cloud.
It is uncommon for stratocumulus clouds to produce precipitation, but if they do
it is usually a light rain or snow.
Next Topic: Stratus Clouds
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