Weather Alert in Colorado
Flash Flood Warning issued August 26 at 6:45PM MDT until August 26 at 8:00PM MDT by NWS Grand Junction CO
AREAS AFFECTED: Montrose, CO; San Juan, UT
DESCRIPTION: FFWGJT The National Weather Service in Grand Junction has extended the * Flash Flood Warning for... The Deer Creek Burn Scar in... West Central Montrose County in west central Colorado... Northeastern San Juan County in southeastern Utah... * Until 800 PM MDT. * At 645 PM MDT, Doppler radar indicated thunderstorms producing heavy rain over the Deer Creek Burn Scar. Between 0.3 and 0.8 inches of rain have fallen. The expected rainfall rate is 0.2 to 0.5 inches in 1 hour. Additional rainfall amounts of 0.2 to 0.4 inches are possible in the warned area. Flash flooding is ongoing or expected to begin shortly. Excessive rainfall over the burn scar will result in debris flow moving through the La Sal Creek and Twomile Creek Basins. 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 Deer Creek Burn Scar. SOURCE...Radar. IMPACT...Life threatening flash flooding of areas in and around the Deer Creek Burn Scar. * Some locations that will experience flash flooding include... La Sal. This includes the following streams and drainages... Ice Lake Creek, Sal Creek, La and West Paradox Creek.
INSTRUCTION: This is a life threatening situation. Heavy rainfall will cause extensive and severe flash flooding of creeks...streams...and ditches in the Deer Creek 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 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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