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 Mammatus Clouds?
Home - Education - Cloud Types - Mammatus Clouds
Next Topic: Nimbostratus Clouds
A mammatus cloud is a cloud with a unique feature which resembles
a web of pouches hanging along the base of the cloud.
In the United States, mammatus clouds tend to form in the warmer months, commonly
in the Midwest and eastern regions.
While they usually form at the bottom of a cumulonimbis cloud, they can also form
under altostratus, altocumulus, stratocumulus, and cirrus clouds. Mammatus clouds
warn that severe weather is close.
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Weather Topic: What is Precipitation?
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Next Topic: Rain
Precipitation can refer to many different forms of water that
may fall from clouds. Precipitation occurs after a cloud has become saturated to
the point where its water particles are more dense than the air below the cloud.
In most cases, precipitation will reach the ground, but it is not uncommon for
precipitation to evaporate before it reaches the earth's surface.
When precipitation evaporates before it contacts the ground it is called Virga.
Graupel, hail, sleet, rain, drizzle, and snow are forms of precipitation, but fog
and mist are not considered precipitation because the water vapor which
constitutes them isn't dense enough to fall to the ground.
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