Weather Alert in Oregon
Red Flag Warning issued July 4 at 12:49AM MDT until July 4 at 11:00PM MDT by NWS Boise ID
AREAS AFFECTED: Burns BLM; Southern Grasslands; Central Canyonlands; Northwestern Vale BLM
DESCRIPTION: ...RED FLAG WARNING FOR SCATTERED LIGHTNING THIS EVENING...AND AGAIN EARLY FRIDAY MORNING THROUGH LATE FRIDAY EVENING IN SOUTHEAST OREGON... .Scattered thunderstorms will increase early this morning in southeast Oregon. Several rounds of thunderstorms are likely through late this evening. Gusty outflow winds and lightning, combined with low humidity this afternoon, will continue to cause critical fire weather conditions. * AFFECTED AREA...In Oregon, Fire Weather Zones 670 Burns BLM, 672 Southern Grasslands, 673 Central Canyonlands and 674 Northwestern Vale BLM. * TIMING...Until 11 PM MDT /10 PM PDT/ this evening. * WINDS... * RELATIVE HUMIDITY... * IMPACTS...Any fire that develops will catch and spread quickly. Outdoor burning is not recommended. * THUNDERSTORMS...Scattered. * OUTFLOW WINDS...Isolated gusts up to 50 mph.
INSTRUCTION: A Red Flag Warning means that critical fire weather conditions are either occurring now, or will occur shortly.
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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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