Weather Alert in Colorado
Flash Flood Warning issued September 11 at 2:06PM MDT until September 11 at 5:00PM MDT by NWS Grand Junction CO
AREAS AFFECTED: Dolores, CO; Montezuma, CO
DESCRIPTION: FFWGJT The National Weather Service in Grand Junction has issued a * Flash Flood Warning for... The Stoner Mesa burn scar in... Central Dolores County in southwestern Colorado... Northeastern Montezuma County in southwestern Colorado... * Until 500 PM MDT. * At 206 PM MDT, Doppler radar indicated thunderstorms producing heavy rain over the Stoner Mesa Burn Scar. The expected rainfall rate is 1 to 2 inches in 1 hour. Flash flooding is expected to begin shortly. Excessive rainfall over the burn scar will result in debris flow moving through the Stoner Mesa Burn Scar. The debris flow can consist of rock, mud, vegetation and other loose materials. HAZARD...Life threatening flash flooding. Thunderstorms producing flash flooding and debris flows in and around the Stoner Mesa Burn Scar. SOURCE...Radar. IMPACT...Dangerous flash flooding and debris flows are possible in and downstream the Stoner Mesa Burn Scar. * Some locations that will experience flash flooding include... Stoner Creek Drainage, the town of Stoner and CO Hwy 145 This includes the following streams and drainages... Stoner Creek to the Dolores River
INSTRUCTION: This is a dangerous situation. Heavy rainfall will cause extensive flash flooding of creeks...streams...and ditches in the Stoner Mesa Burn Scar. 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. 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 Fractus Clouds?
Home - Education - Cloud Types - Fractus Clouds
Next Topic: Freezing Rain
A fractus cloud (scud) is a fragmented, tattered cloud which has
likely been sheared off of another cloud. They are accessory clouds, meaning they
develop from parent clouds, and are named in a way which describes the original
cloud which contained them.
Fractus clouds which have originated from cumulus clouds are referred to as
cumulus fractus, while fractus clouds which have originated from stratus clouds
are referred to as stratus fractus. Under certain conditions a fractus cloud might
merge with another cloud, or develop into a cumulus cloud, but usually a
fractus cloud seen by itself will dissipate rapidly.
They are often observed on the leading and trailing edges of storm clouds,
and are a display of wind activity.
Next Topic: Freezing Rain
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
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