Weather Alert in Colorado

Recent Locations: Poolesville, MD Yelm, WA Norwood, CO

Flood Watch issued August 25 at 3:06AM MDT until August 26 at 12:00AM MDT by NWS Pueblo CO

AREAS AFFECTED: Northern Sangre de Cristo Mountains Between 8500 And 11000 Ft; Northern Sangre de Cristo Mountains above 11000 Ft; Southern Sangre De Cristo Mountains Between 7500 and 11000 Ft; Southern Sangre De Cristo Mountains Above 11000 Ft; Western/Central Fremont County Below 8500 Ft; Wet Mountain Valley Below 8500 Ft; Wet Mountains between 6300 and 10000Ft; Wet Mountains above 10000 Ft; Walsenburg Vicinity/Upper Huerfano River Basin Below 7500 Ft

DESCRIPTION: * WHAT...Flash flooding caused by excessive rainfall continues to be possible. * WHERE...Portions of central and southeast Colorado, including the following areas, in central Colorado, Western/Central Fremont County Below 8500 Feet. In southeast Colorado, Northern Sangre de Cristo Mountains Above 11000 Feet, Northern Sangre de Cristo Mountains Between 8500 And 11000 Feet, Southern Sangre de Cristo Mountains Above 11000 Feet, Southern Sangre de Cristo Mountains Between 7500 and 11000 Feet, Walsenburg Vicinity/Upper Huerfano River Basin Below 7500 Feet, Wet Mountain Valley Below 8500 Feet, Wet Mountains Above 10000 Feet and Wet Mountains between 6300 and 10000 Feet. * WHEN...From noon MDT today through this evening. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. * ADDITIONAL DETAILS... - http://www.weather.gov/safety/flood

INSTRUCTION: You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued.

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Weather Topic: What are Cirrus Clouds?

Home - Education - Cloud Types - Cirrus Clouds

Next Topic: Condensation

Cirrus clouds are high-level clouds that occur above 20,000 feet and are composed mainly of ice crystals. They are thin and wispy in appearance.

What do they indicate?
They are often the first sign of an approaching storm.

Next Topic: Condensation

Weather Topic: What are Contrails?

Home - Education - Cloud Types - Contrails

Next Topic: Cumulonimbus Clouds

A contrail is an artificial cloud, created by the passing of an aircraft.

Contrails form because water vapor in the exhaust of aircraft engines is suspended in the air under certain temperatures and humidity conditions. These contrails are called exhaust contrails.

Another type of contrail can form due to a temporary reduction in air pressure moving over the plane's surface, causing condensation. These are called aerodynamic contrails.

When you can see your breath on a cold day, it is also because of condensation. The reason contrails last longer than the condensation from your breath is because the water in contrails freezes into ice particles.

Next Topic: Cumulonimbus Clouds