Weather Alerts for Colorado

Recent Locations: Sioux Falls, SD Grant, OK Arvada, CO

Current Alerts for Arvada, CO: Red Flag Warning

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: Kit Carson County; Cheyenne; Dundy

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: 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; Elbert/Central and East Douglas Counties Above 6000 Feet; 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; Southeast Elbert County Below 6000 Feet/South Lincoln County; Logan County; Washington County; Sedgwick County; Phillips County

6. Red Flag Warning for: Northern El Paso County Including Monument and Black Forest; Southern El Paso County Including Fort Carson and Colorado Springs; Otero County Including La Junta and Western Comanche Grasslands; Eastern Las Animas County Including Pinon Canyon

7. Red Flag Warning for: Pueblo County Including Pueblo; Huerfano County Including Walsenburg; Western Las Animas County Including Trinidad and Thatcher

8. Red Flag Warning for: Yuma

9. Winter Storm Warning for: Elkhead and Park Mountains

10. Winter Storm Warning for: South and East Jackson/Larimer/North and Northeast Grand/Northwest Boulder Counties Above 9000 Feet

11. Winter Storm Warning for: West Jackson and West Grand Counties Above 9000 Feet

12. Winter Weather Advisory for: Gore and Elk Mountains/Central Mountain Valleys; Flat Tops

13. 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

14. Winter Weather Advisory for: Western Mosquito Range/East Lake County Above 11000 Ft; Eastern Sawatch Mountains above 11000 Ft

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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 Altostratus Clouds?

Home - Education - Cloud Types - Altostratus Clouds

Next Topic: Cirrocumulus Clouds

Altostratus clouds form at mid to high-level altitudes (between 2 and 7 km) and are created by a warm, stable air mass which causes water vapor to condense as it rise through the atmosphere. Usually altostratus clouds are featureless sheets characterized by a uniform color.

In some cases, wind punching through the cloud formation may give it a waved appearance, called altostratus undulatus. Altostratus clouds are commonly seen with other cloud formations accompanying them.

Next Topic: Cirrocumulus Clouds

Weather Topic: What are Cirrostratus Clouds?

Home - Education - Cloud Types - Cirrostratus Clouds

Next Topic: Cirrus Clouds

Cirrostratus clouds are high, thin clouds that form above 20,000 feet and are made mostly of ice crystals. They sometimes look like giant feathers, horse tails, or curls of hair in the sky. These clouds are pushed by the jet stream and can move at high speeds reaching 100 mph.

What do they indicate?
They indicate that a precipitation is likely within 24 hours.

Next Topic: Cirrus Clouds