Weather Alert in Colorado

Recent Locations: Ontario, CA   Des Moines, IA   Arvada, CO  

Flash Flood Warning issued August 25 at 7:22PM MDT until August 25 at 8:45PM MDT by NWS Grand Junction CO

AREAS AFFECTED: Mesa, CO

DESCRIPTION: FFWGJT The National Weather Service in Grand Junction has issued a * Flash Flood Warning for... The Turner Gulch Burn Scar * Until 845 PM MDT. * At 722 PM MDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 0.3 and 0.5 inches of rain have fallen. The expected rainfall rate is 0.7 to 1 inch in 1 hour. Flash flooding is ongoing or expected to begin shortly. Excessive rainfall over the burn scar will result in debris flow moving through the central and eastern basins of the Turner Gulch burn scar. The debris flow can consist of rock, mud, vegetation and other loose materials. HAZARD...Life threatening flash flooding. Thunderstorms producing flash flooding. SOURCE...Radar. IMPACT...Life threatening flash flooding of creeks and streams, urban areas, highways, streets and underpasses. * Some locations that will experience flash flooding include... Turner Gulch burn scar This includes the following streams and drainages... North Lobe Creek, Bear Creek, Cow Creek, Big Dominguez Creek, Ute Creek, Calamity Creek, West Creek, Fair Creek, La, Gill Creek and Beaver Creek.

INSTRUCTION: Move away from recently burned areas. Life-threatening flooding of creeks, roads and normally dry arroyos is likely. The heavy rains will likely trigger rockslides, mudslides and debris flows in steep terrain, especially in and around these areas.

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Weather Topic: What are Cirrus Clouds?

Home - Education - Cloud Types - Cirrus Clouds

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.

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Weather Topic: What are Contrails?

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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

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