Weather Alert in Wyoming
Red Flag Warning issued August 3 at 2:19AM MDT until August 4 at 8:00PM MDT by NWS Riverton WY
AREAS AFFECTED: Lincoln and Uinta Counties/Lower Elevations; Upper Green River Basin/Rock Springs BLM; Sweetwater County/Rock Springs BLM/Flaming Gorge NRA; East Wind River Mountains/South Shoshone NF; Granite/Green/Ferris/Rattlesnake Mountains; Salt and Wyoming Ranges/West Zone Bridger Teton NF; West Wind River Mountains/East Zone Bridger Teton NF
DESCRIPTION: The National Weather Service in Riverton has issued a Red Flag Warning, which is in effect from noon to 8 PM MDT Monday. * IMPACTS: Low Humidities and Strong Gusty Winds could cause erratic fire behavior. * AFFECTED AREA: In Central WY Fire Zones...288...289. In Southwest WY Fire Zones...277...279. In West Central WY Fire Zones...278...414...416. * COUNTIES AFFECTED: In Central WY...Fremont...Natrona. In Southwest WY...Sweetwater...Uinta. In West Central WY...Lincoln...Sublette. * WIND: Southwest 10 to 20 mph with gusts up to 30 mph. * HUMIDITY: As low as 6 percent.
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 Contrails?
Home - Education - Cloud Types - Contrails
Next Topic: Cumulonimbus Clouds
A contrail is an artificial cloud, created by the passing of an
aircraft.
Contrails form because water vapor in the exhaust of aircraft engines is suspended
in the air under certain temperatures and humidity conditions. These contrails
are called exhaust contrails.
Another type of contrail can form due to a temporary reduction in air pressure
moving over the plane's surface, causing condensation.
These are called aerodynamic contrails.
When you can see your breath on a cold day, it is also because of condensation.
The reason contrails last longer than the condensation from your breath is
because the water in contrails freezes into ice particles.
Next Topic: Cumulonimbus Clouds
Weather Topic: What are Cumulus Clouds?
Home - Education - Cloud Types - Cumulus Clouds
Next Topic: Drizzle
Cumulus clouds are fluffy and textured with rounded tops, and
may have flat bottoms. The border of a cumulus cloud
is clearly defined, and can have the appearance of cotton or cauliflower.
Cumulus clouds form at low altitudes (rarely above 2 km) but can grow very tall,
becoming cumulus congestus and possibly the even taller cumulonimbus clouds.
When cumulus clouds become taller, they have a greater chance of producing precipitation.
Next Topic: Drizzle
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