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Snow possible by Monday

Sara McManamy-Johnson sjohnson@lebanondemocrat.com • Dec 17, 2015 at 5:35 PM

Wilson County could see winter weather into Monday night.

“The weather service is now looking at a third round of winter weather, which could impact us Monday night,” said Capt. Steve Spencer of Wilson Emergency Management Agency.

Although Friday brought more than four inches of rain by mid-afternoon, with forecasters warning of ice accumulations of around one-tenth of an inch, Spencer said the county would likely see a brief reprieve Saturday.

“Saturday we will likely see a break in precipitation with redevelopment Saturday night into Sunday morning,” said Spencer. “Travel Sunday morning could be hazardous until temperatures warm above freezing during the day Sunday.”

He said flooding would probably not be an issue, aside from localized creek flooding, because of the predicted break in precipitation.

But the break may not last long.

“Forecast models are unsure, but the thinking is, areas east of I-65 could see snow develop Monday night with a possible 1 to 2 inches,” said Spencer. “The weather service will likely update this forecast between now and Monday.”

Spencer said the weather system is caused by a “temperature inversion.”

“At the 5,000-foot level is a train of warm, moist air feeding our precipitation and arctic air at the 2,000-foot level, freezing that precipitation,” said Spencer. “This is why most of us heard thunder [Thursday night]; the upper atmosphere was having a good, old fashion thunderstorm overnight, but the rain it produced was falling though artic air to reach us.”

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