Weather Alert in Idaho
Red Flag Warning issued July 7 at 1:30PM MDT until July 9 at 9:00PM MDT by NWS Missoula MT
AREAS AFFECTED: Palouse/Nezperce Reservation/Hells Canyon Region
DESCRIPTION: The National Weather Service in Missoula has issued a Red Flag Warning for wind and low relative humidity, which is in effect from 11 AM to 8 PM PDT Wednesday. * AFFECTED AREA...Fire Zone 102 Palouse/Hells Canyon. * TIMING...From 11 AM to 8 PM PDT Wednesday. * WINDS...West 10 to 20 mph with gusts around 30 mph. Stronger outflow gusts possible from thunderstorms. * RELATIVE HUMIDITY...15-20 percent. * IMPACTS...The combination of low humidity with west gusting up to 30 mph along with isolated thunderstorm outflow winds may result in critical fire weather conditions, increasing the risk for new and existing fires to spread quickly.
INSTRUCTION: A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly.
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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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