Weather Alerts for Colorado
1. Avalanche Warning for: Elkhead and Park Mountains; West Jackson and West Grand Counties Above 9000 Feet; South and East Jackson/Larimer/North and Northeast Grand/Northwest Boulder Counties Above 9000 Feet
2. Fire Weather Watch for: Fremont County Including Canon City/Howard/Texas Creek
3. Fire Weather Watch for: Larimer County Below 6000 Feet/Northwest Weld County; Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County; North Douglas County Below 6000 Feet/Denver/West Adams and Arapahoe Counties/East Broomfield County; Northeast Weld County; Central and South Weld County; Morgan County; Central and East Adams and Arapahoe Counties; North and Northeast Elbert County Below 6000 Feet/North Lincoln County; Logan County; Washington County; Sedgwick County; Phillips County
4. Fire Weather Watch for: Pueblo County Including Pueblo; Huerfano County Including Walsenburg; Western Las Animas County Including Trinidad and Thatcher
5. Red Flag Warning for: Elbert/Central and East Douglas Counties Above 6000 Feet; Southeast Elbert County Below 6000 Feet/South Lincoln County
6. Red Flag Warning for: Larimer County Below 6000 Feet/Northwest Weld County; Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County; North Douglas County Below 6000 Feet/Denver/West Adams and Arapahoe Counties/East Broomfield County; Northeast Weld County; Central and South Weld County; Morgan County; Central and East Adams and Arapahoe Counties; North and Northeast Elbert County Below 6000 Feet/North Lincoln County; Logan County; Washington County; Sedgwick County; Phillips County
7. Red Flag Warning for: Northern El Paso County Including Monument and Black Forest; Southern El Paso County Including Fort Carson and Colorado Springs; Crowley County Including Ordway; Otero County Including La Junta and Western Comanche Grasslands; Eastern Las Animas County Including Pinon Canyon
8. Red Flag Warning for: Pueblo County Including Pueblo; Huerfano County Including Walsenburg; Western Las Animas County Including Trinidad and Thatcher
9. Red Flag Warning for: Yuma; Kit Carson County; Cheyenne; Cheyenne; Sherman; Dundy; Hitchcock; Red Willow
10. Winter Storm Warning for: Elkhead and Park Mountains
11. Winter Storm Warning for: South and East Jackson/Larimer/North and Northeast Grand/Northwest Boulder Counties Above 9000 Feet
12. Winter Storm Warning for: West Jackson and West Grand Counties Above 9000 Feet
13. Winter Weather Advisory for: Gore and Elk Mountains/Central Mountain Valleys; Flat Tops
14. Winter Weather Advisory for: South and Southeast Grand/West Central and Southwest Boulder/Gilpin/Clear Creek/Summit/North and West Park Counties Above 9000 Feet
15. Winter Weather Advisory for: Western Mosquito Range/East Lake County Above 11000 Ft; Eastern Sawatch Mountains above 11000 Ft
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Weather Topic: What are Shelf Clouds?
Home - Education - Cloud Types - 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
Weather Topic: What is Snow?
Home - Education - Precipitation - Snow
Next Topic: Stratocumulus Clouds
Snow is precipitation taking the form of ice crystals. Each ice crystal, or snowflake,
has unique characteristics, but all of them grow in a hexagonal structure.
Snowfall can last for sustained periods of time and result in significant buildup
of snow on the ground.
On the earth's surface, snow starts out light and powdery, but as it begins to melt
it tends to become more granular, producing small bits of ice which have the consistency of
sand. After several cycles of melting and freezing, snow can become very dense
and ice-like, commonly known as snow pack.
Next Topic: Stratocumulus Clouds
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