Weather Alert in Oregon
Red Flag Warning issued July 3 at 10:52PM PDT until July 4 at 8:00AM PDT by NWS Medford OR
AREAS AFFECTED: South Central Oregon Desert including the BLM Land in Eastern Lake and Western Harney Counties
DESCRIPTION: * IMPACTS...Given the long stretch of dry and hot conditions, lightning efficiency will be moderate for new fire starts. Any fires that develop will likely spread rapidly. * AFFECTED AREA...Mostly north of Summer Lake through tonight. Friday afternoon includes areas near Paisley and north. * THUNDERSTORMS...Scattered thunderstorms into early Friday morning. Another round of scattered thunderstorms is expected Friday afternoon. * OUTFLOW WINDS...Gusts up to 45 mph. These outflow winds can travel up to 25 miles away from the thunderstorm that caused it. * ADDITIONAL INFORMATION...Some storms could be dry with gusty outflows. Any overnight storms are more likely to produce significantly less precipitation, or be completely dry. * DETAILED URL...View the hazard area in detail at https://www.wrh.noaa.gov/map/?wfo=mfr
INSTRUCTION: Follow all fire restrictions. You can find your county's emergency sign up form as well as links to fire restrictions at weather.gov/medford/wildfire. One less spark, one less wildfire. Be sure you're signed up for your county's emergency alert system. Familiarize yourself with your emergency plan and make sure you listen to emergency services. Visit ready.gov/plan for more information. A Red Flag Warning is issued when we identify weather conditions that promote rapid spread of fire which may become life- threatening. This does not mean there is a fire. These conditions are either occurring now or will begin soon. It is important to have multiple ways to receive information from authorities.
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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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