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Strong to marginally severe thunderstorms producing heavy rain possible ahead of hot weekend

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CHEYENNE, Wyo. — Southeast Wyoming will see a marginal risk for strong to severe thunderstorms capable of producing heavy rain today and Thursday ahead of what will be a hot, sunny weekend, the National Weather Service in Cheyenne said.

Showers this morning are likely to continue through noon, after which the chance for a thunderstorm increases to 70%. Precipitation is expected to total about one-tenth of an inch, except for higher possible amounts during heavy-rain thunderstorms, the weather service said.

When it’s not raining, skies will be partly cloudy as the high nears 82, according to the forecast.

Rain chances will remain around 40% heading into tonight, with showers and thunderstorms mainly occurring before midnight. The low is forecast at 56 degrees.

(National Weather Service Cheyenne graphic)

Shower chances ramp back up to 60% Thursday afternoon after a mostly sunny morning. Thunderstorms will be likely between noon and 3 p.m. as the high nears 81, according to the forecast. Rain chances diminish into the evening hours to just 20%, with any storms expected before midnight. The rest of the night will be mostly clear as the low falls to 57.

Friday presents a 30% chance for showers and thunderstorms in the afternoon, although the day is expected to be mostly sunny with a high near 87. Mostly clear skies will persist through the night with a low of 59.

With high pressure building over the Rockies, Saturday and Sunday are shaping up to be sunny and hot as the high approaches 94 degrees each day, according to the forecast. A dry cold front should approach the area Sunday evening, providing some — albeit not much — relief from the heat, the weather service said.

“May be dealing with fire weather issues Sunday as ridge gets flattened some with a low pressure system tracking across Montana,” meteorologists said in the forecast discussion.

Monsoonal moisture may return to the area Monday, dropping temperatures back into the mid-80s and increasing precipitation chances.


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