Weather Alert in Colorado
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 Wall Clouds?
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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
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Wall clouds can be very large, and in the Northern Hemisphere they generally
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Weather Topic: What are Altostratus Clouds?
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Altostratus clouds form at mid to high-level altitudes
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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.
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