Weather Alert in Wyoming
Red Flag Warning issued August 13 at 2:09AM MDT until August 13 at 8:00PM MDT by NWS Riverton WY
AREAS AFFECTED: Salt and Wyoming Ranges/West Zone Bridger Teton NF; North Zone Bridger Teton NF and Grand Teton NP; West Wind River Mountains/East Zone Bridger Teton NF
DESCRIPTION: * IMPACTS: Low Humidities...Very Dry Fuels...Hot Temperatures...and Strong Gusty Winds...and Increasing Thunderstorm Activity could cause erratic fire behavior. * AFFECTED AREA: In Northwest WY Fire Zone....415. In West Central WY Fire Zones...414...416. * COUNTIES AFFECTED: In Central WY...Fremont. In North Central WY...Park. In West Central WY...Lincoln...Sublette...Teton. * WIND: West 10 to 20 mph with gusts up to 35 mph. * THUNDERSTORMS: There is a 20 to 40 percent chance of thunderstorms, with gusty winds and frequent lightning being the main threats. * HUMIDITY: Higher elevations will see RHs around 20 percent, however lower valleys will see RHs around 13 to 17 percent Wednesday afternoon. * TEMPERATURES: Highs in the upper 70s.
INSTRUCTION: A Red Flag Warning means that critical fire weather conditions are either occurring now....or will shortly. A combination of strong winds...low relative humidity...and warm temperatures can contribute to 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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