Weather Alert in Oregon
Flash Flood Warning issued August 3 at 5:27PM PDT until August 3 at 7:45PM PDT by NWS Boise ID
AREAS AFFECTED: Baker, OR; Malheur, OR
DESCRIPTION: At 527 PM PDT /627 PM MDT/, Doppler radar indicated thunderstorms producing heavy rain over the Cow Valley and Durkee Burn Scar. Between 0.5 and 1 inch of rain has fallen. Flash flooding is ongoing or expected to begin shortly. HAZARD...Life threatening flash flooding. Thunderstorms producing flash flooding in and around the Cow Valley and Durkee Burn Scar. SOURCE...Radar. IMPACT...Life threatening flash flooding of areas in and around the Cow Valley and Durkee Burn Scar. Some locations that will experience flash flooding include... Brogan, Huntington, California Mountain, Brogan Hill Summit, Rye Valley, Malheur Reservoir, Brosman Mountain, Lime, Malheur City, Weatherby and Sugarloaf Butte. Spotters near Brogan Hill have reported a debris flow over State Highway 26 just west of Brogan.
INSTRUCTION: This is a life threatening situation. Heavy rainfall will cause extensive and severe flash flooding of creeks...streams...and ditches in the Cow Valley and Durkee 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 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
Weather Topic: What are Cirrostratus Clouds?
Home - Education - Cloud Types - Cirrostratus Clouds
Next Topic: Cirrus Clouds
Cirrostratus clouds are high, thin clouds that form above
20,000 feet and are made mostly of ice crystals. They sometimes look like giant
feathers, horse tails, or curls of hair in the sky.
These clouds are pushed by the jet stream and can move at high speeds reaching
100 mph.
What do they indicate?
They indicate that a precipitation is likely within 24 hours.
Next Topic: Cirrus Clouds
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