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Heat Wave Expands to the East Coast; Flash Flooding Likely in the Central Plains into the Midwest; Severe Thunderstorms in the Northeast

Dangerous, prolonged heat is ongoing in the Mid-South to Mid-Mississippi Valley and heat expands into the Northeast for a brief period today. Widely scattered instances of flash flooding due to heavy rains are forecast from northeast Kansas to much of Indiana. Scattered strong to severe thunderstorms are possible across parts of New England, northern Mid-Atlantic, and North Dakota. Read More >

On November 11, 1911, the day started out unseasonably mild across much of the Midwest with readings in the 60s. Unknown to essentially everyone, a major storm system with a very strong arctic cold front would sweep through during the afternoon hours bringing damaging winds, severe thunderstorms, tornadoes, and unprecedented temperature falls. The sudden temperature change caught people by surprise, especially hunters who had left that morning wearing only light clothing. The temperature drop from the afternoon of November 11th, to sunrise on November 12th was 60 to nearly 70 degrees. A temperature drop of 30 to 40 degrees occurred in one hour with the passage of the arctic front. However, across southern Missouri the temperature drop occurred in as little as 15 to 30 minutes.

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Image courtesy of Jim Lee, NWS Des Moines
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