National Weather Service United States Department of Commerce


A strong cold front moved through the region during the afternoon hours on November 18, 2017. A line of thunderstorms developed just west of our forecast area from Missouri into Illinois and progressed eastward. Damaging winds were the main hazard observed with these storms. However, there were 5 reported tornadoes that briefly touched down as well. The strongest two tornadoes were both rated EF-1. The first occurred in Spencer County, IN in the Reo area while the second touched down in Muhlenberg County, KY south of the community of Bremen. Due to the tightening pressure gradient that existed from deepening low pressure pushing northeast of the region and high pressure over the Plains, strong gradient winds were observed as well. There was a wind advisory in effect for the entire region during the day, with winds gusting upwards of 35 to 50 mph, even outside of thunderstorms.


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