A “pneumonia front” is expected to zip down the lake late in the day and will cause temps to tumble in the early evening hours, especially along the immediate shoreline.  The cooldown will be more muted inland. A pneumonia front is a lake enhanced cold front that brings big temperature drops.  The decrease in temps be as much as 20-30 degrees in an hour. Officially, for a front to be considered a pneumonia front, the temp has to drop at least 16 degrees in one hour. 

SEVERE STORM THREATS FOR THE NEXT 12-48 HOURS

6 TO 14 DAY TEMPERATURE OUTLOOK

Here’s some signs any really chilly days might be behind us