Weather Alert in Utah
Red Flag Warning issued August 13 at 2:29AM MDT until August 13 at 9:00PM MDT by NWS Salt Lake City UT
AREAS AFFECTED: Wasatch Mountains
DESCRIPTION: * AFFECTED AREA...Fire Weather Zone 479 Wasatch Mountains. * WINDS...Today, west 10 to 20 mph with gusts to 30 mph. * RELATIVE HUMIDITY...Today, 10 to 15 percent. * THUNDERSTORMS...Thursday, scattered thunderstorms will form over the higher terrain of Utah during the afternoon through the evening. Given the extended period of very dry conditions with little to no rain, new wildfire starts are likely with any lightning. * OUTFLOW WINDS...Thursday, gusty and erratic outflow winds up to 50 mph are possible with any thunderstorms. * IMPACTS...Critical fire weather conditions are expected. Any new fire starts or existing fires may spread rapidly.
INSTRUCTION: A Red Flag Warning means that critical fire weather conditions are either occurring now...or are imminent. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. A Fire Weather Watch means that there is a potential for critical fire weather conditions. A combination of lightning...dry fuel conditions...and gusty microburst winds may create favorable conditions for new fire starts and extreme fire behavior.
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Weather Topic: What are Stratocumulus Clouds?
Home - Education - Cloud Types - Stratocumulus Clouds
Next Topic: Stratus Clouds
Stratocumulus clouds are similar to altocumulus clouds in their
fluffy appearance, but have a slightly darker shade due to their additional mass.
A good way to distinguish the two cloud types is to hold your hand out and measure
the size of an individual cloud; if it is the size of your thumb it is generally
an altocumulus cloud, if it is the size of your hand it is generally a
stratocumulus cloud.
It is uncommon for stratocumulus clouds to produce precipitation, but if they do
it is usually a light rain or snow.
Next Topic: Stratus Clouds
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
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