Weather Alert in Wyoming

Recent Locations: Addison, IL   Wessington Springs, SD   Powell, WY  

Red Flag Warning issued August 13 at 7:59PM MDT until August 14 at 8:00PM MDT by NWS Riverton WY

AREAS AFFECTED: Lincoln and Uinta Counties/Lower Elevations; Upper Green River Basin/Rock Springs BLM; Absaroka Mountains/North Shoshone NF; East Wind River Mountains/South Shoshone NF; 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: * AFFECTED AREA: In Central WY Fire Zone....288. In Northwest WY Fire Zones...286...415. In Southwest WY Fire Zone....277. In West Central WY Fire Zones...278...414...416. * COUNTIES AFFECTED: In Central WY...Fremont. In North Central WY...Hot Springs...Park. In Southwest WY...Sweetwater...Teton...Uinta. In West Central WY...Lincoln...Sublette. * IMPACTS: Low Humidities...Above Normal Temperatures...and Gusty West Winds could cause erratic fire behavior. * WIND: West 10 to 20 mph with gusts up to 30 mph. * HUMIDITY: 14 to 19 percent. * TEMPERATURES: Highs 74 to 79 in Zones 286, 288, 414, 415, and 416. Highs 83 to 88 in Zones 277 and 278.

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 Nimbostratus Clouds?

Home - Education - Cloud Types - Nimbostratus Clouds

Nimbostratus Clouds Next Topic: Precipitation

A nimbostratus cloud is similar to a stratus cloud in its formless, smooth appearance. However, a nimbostratus cloud is darker than a stratus cloud, because it is thicker.

Unlike a stratus cloud, a nimbostratus cloud typically brings with it the threat of moderate to heavy precipitation. In some cases, the precipitation may evaporate before reaching the ground, a phenomenon known as virga.

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Weather Topic: What is Rain?

Home - Education - Precipitation - Rain

Rain Next Topic: Shelf Clouds

Precipitation in the form of water droplets is called rain. Rain generally has a tendency to fall with less intensity over a greater period of time, and when rainfall is more severe it is usually less sustained.

Rain is the most common form of precipitation and happens with greater frequency depending on the season and regional influences. Cities have been shown to have an observable effect on rainfall, due to an effect called the urban heat island. Compared to upwind, monthly rainfall between twenty and forty miles downwind of cities is 30% greater.

Next Topic: Shelf Clouds

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