Weather Alert in Colorado
Flood Advisory issued August 24 at 2:36PM MDT until August 24 at 5:45PM MDT by NWS Grand Junction CO
AREAS AFFECTED: Delta, CO; Montrose, CO
DESCRIPTION: * WHAT...Arroyo and small stream flooding caused by excessive rainfall is expected. * WHERE...A portion of west central Colorado, including the following counties, Delta and Montrose. * WHEN...Until 545 PM MDT. * IMPACTS...Rises in small streams and normally dry arroyos. * ADDITIONAL DETAILS... - At 236 PM MDT, Doppler radar indicated heavy rain due to thunderstorms along over the Rubideau Creek and Criswell Creek drainages. This may cause downstream arroyo and small stream flooding. Between 0.5 and 1 inch of rain has fallen. - This includes the following streams and drainages... Rubideau and Criswell Creeks and nearby drainages. Additional rainfall amounts of 0.3 to 0.6 inches are expected over the area. This additional rain will result in minor flooding. - Some locations that will experience flooding include... Areas near the Rubideau Creek drainage - http://www.weather.gov/safety/flood
INSTRUCTION: Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Remain alert for flooding even in locations not receiving rain. Arroyos, streams, and rivers can become raging currents in a matter of minutes, even from distant rainfall.
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Weather Topic: What is Graupel?
Home - Education - Precipitation - Graupel
Next Topic: Hail
Graupel is a form of precipitation that is created by atmospheric conditions
which cause supercooled water droplets to contact snow crystals and freeze to
their surface.
Sometimes known as soft hail or snow pellets, graupel is delicate and easily
destroyed by touch. Whereas hail usually falls during severe weather, graupel
doesn't require such conditions to form, and can form in mild precipitation
similar to situations which produce snowfall.
Next Topic: Hail
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
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