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Morning fog will give way to sunny day, then chance for severe thunderstorms


CHEYENNE, Wyo. — It might be hard to get a good view of Cheyenne this morning as heavy fog will limit visibility in some areas, the National Weather Service warns.

A dense fog advisory is in place until 9 a.m. today as visibility drops to less than a mile in some parts. Drivers are reminded to use headlights and leave plenty of distance ahead while traveling.

The fog should lift later this morning, giving way to a partly sunny and then sunny mid-morning and early afternoon. The forecast high is 83 with a south-southwest wind of 10–15 mph shifting northeast in the afternoon, according to the weather service office in Cheyenne.

Into this afternoon, the Storm Prediction Center is forecasting a marginal risk of severe thunderstorm development across southeast Wyoming and the southern Nebraska Panhandle. The National Weather Service in Cheyenne said in its forecast discussion that models are showing isolated storm initiation this afternoon that may transition into a multi-storm cluster by evening, especially across the southern Nebraska Panhandle.

NOAA Storm Prediction Center graphic for Wednesday, July 27, 2022.

“Some of these CAMS also show isolated storms developing north of Cheyenne and moving off to the south-southeast and showing supercellular characteristics,” meteorologists wrote in the forecast discussion. “This will be closely monitored as we continue to have a large public presence in Cheyenne. Storms that do develop will have the potential of producing all modes of severe weather, including an isolated tornado threat.”

The chance for severe thunderstorms is 50% this afternoon, according to the forecast.

Tonight carries a 40% chance for severe thunderstorms before becoming mostly cloudy as the low falls to about 56 degrees.

For more on the forecast, visit the National Weather Service in Cheyenne’s forecast page.