Weather Alert in Colorado
Flash Flood Warning issued August 23 at 4:01PM MDT until August 23 at 4:45PM MDT by NWS Grand Junction CO
AREAS AFFECTED: Mesa, CO
DESCRIPTION: At 401 PM MDT, Doppler radar indicated thunderstorms producing heavy rain over the western portion of the Turner Gulch burn scar and toward Gateway. Between 0.4 and 1.00 inches of rain may have fallen. The expected rainfall rate is 0.7 to 1.5 inches 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 basins on the western end of the burn scar. The debris flow can consist of rock, mud, vegetation and other loose materials. HAZARD...Life threatening flash flooding. Thunderstorms producing flash flooding in and around the Turner Gulch Burn Scar. SOURCE...Radar. IMPACT...Life threatening flash flooding of areas in and around the Turner Gulch Burn Scar. Some locations that will experience flash flooding include... mainly rural areas of Southwestern Mesa County This includes the following streams and drainages... North Fork West Creek, Dolores River, West Creek, Ute Creek, North Lobe Creek, Gill Creek, Maverick Canyon, Cow Creek and Calamity Creek.
INSTRUCTION: This is a life threatening situation. Heavy rainfall will cause extensive and severe flash flooding of creeks...streams...and ditches in the Turner Gulch Burn Scar. Severe debris flows can also be anticipated across roads. Roads and driveways may be washed away in places. If you encounter flood waters...climb to safety.
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Weather Topic: What are Hole Punch Clouds?
Home - Education - Cloud Types - Hole Punch Clouds
Next Topic: Mammatus Clouds
A hole punch cloud is an unusual occurrence when a disk-shaped
hole appears in a cirrostratus, cirrocumulus, or altocumulus cloud.
When part of the cloud forms ice crystals, water droplets in the surrounding area
of the cloud evaporate. The effect of this process produces a large elliptical
gap in the cloud. The hole punch cloud formation is rare, but it is not specific
to any geographic area.
Other names which have been used to describe this phenomena include fallstreak hole,
skypunch, and cloud hole.
Next Topic: Mammatus Clouds
Weather Topic: What are Nimbostratus Clouds?
Home - Education - Cloud Types - Nimbostratus Clouds
Next Topic: Precipitation
A nimbostratus cloud is similar to a stratus cloud in its formless,
smooth appearance. However, a nimbostratus cloud is darker than a stratus cloud,
because it is thicker.
Unlike a stratus cloud, a nimbostratus cloud typically brings with it the threat
of moderate to heavy precipitation. In some cases, the precipitation may evaporate
before reaching the ground, a phenomenon known as virga.
Next Topic: Precipitation
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