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 are Wall Clouds?
Home - Education - Cloud Types - Wall Clouds
Next Topic: Altocumulus Clouds
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
takes shape.
Wall clouds can be very large, and in the Northern Hemisphere they generally
form at the southern edge of cumulonimbus clouds.
Next Topic: Altocumulus Clouds
Weather Topic: What are Altostratus Clouds?
Home - Education - Cloud Types - Altostratus Clouds
Next Topic: Cirrocumulus Clouds
Altostratus clouds form at mid to high-level altitudes
(between 2 and 7 km) and are created by a warm, stable air mass which causes
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.
Next Topic: Cirrocumulus Clouds
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