Weather Alert in Colorado

Recent Locations: Dublin, IN   Nogales, AZ   Rockvale, CO  

Special Weather Statement issued August 2 at 3:06PM MDT by NWS Denver CO

AREAS AFFECTED: 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; Central and South Weld County

DESCRIPTION: At 306 PM MDT, Doppler radar was tracking a line of showers extending from near Windsor to near Thornton, or extending from 8 miles east of Fort Collins to 15 miles north of Denver, moving east at 20 mph. HAZARD...Wind gusts of 50 to 55 mph. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Locations impacted include... Eastern Fort Collins, Greeley, Thornton, Westminster, eastern Longmont, eastern Loveland, Broomfield, northeastern Commerce City, Northglenn, Brighton, Lafayette, Windsor, Evans, Louisville, Erie, Firestone, northern Denver International Airport, Johnstown, Frederick and Fort Lupton.

INSTRUCTION: Monitor the weather situation closely and be alert for threatening weather conditions. If on a near a lake, get out of the water and secure loose items. Boaters can expect strong gusty winds and locally higher waves. Boaters should seek safe harbor immediately.

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Weather Topic: What are Wall Clouds?

Home - Education - Cloud Types - Wall Clouds

Wall Clouds Next Topic: Altocumulus Clouds

A wall cloud forms underneath the base of a cumulonimbus cloud, and can be a hotbed for deadly tornadoes.

Wall clouds are formed by air flowing into the cumulonimbus clouds, which can result in the wall cloud descending from the base of the cumulonimbus cloud, or rising fractus clouds which join to the base of the storm cloud as the wall cloud takes shape.

Wall clouds can be very large, and in the Northern Hemisphere they generally form at the southern edge of cumulonimbus clouds.

Next Topic: Altocumulus Clouds

Weather Topic: What are Altostratus Clouds?

Home - Education - Cloud Types - Altostratus Clouds

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

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