Montgomery County became the first government in the region to declare a "Code Blue" emergency this fall, warning residents Thursday of potentially deadly weather this weekend.
The alert began Thursday night and runs through 9 a.m. Monday, the county said in a statement.
"A Code Blue Cold Weather Declaration is made in Montgomery County when winter conditions pose a threat of serious harm or death to individuals without shelter," the statement said. "A Code Blue is called when the combination of air temperature and wind chill is anticipated to be 20ºF or less." [[405596606, C]]
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NBC10 First Alert chief meteorologist Glenn "Hurricane" Schwartz issued a warning of his own earlier Thursday when he said two "arctic blasts" were incoming for the region.
"When you add in the wind, it will feel close to 10 degrees Friday and Saturday mornings," Schwartz wrote in a blog post.
More information for Montgomery County residents can be found on the county website.