National Weather Service United States Department of Commerce

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 >

Weather History Archive

Weather History - June 20th

June 20th, 1957:

An F2 tornado moved ENE from near Rockham to near Athol and Ashton. The storm destroyed a mobile home near the start of the path, killing one person. Four barns were damaged, and one house was unroofed.

Also on this day, an F5 tornado cut a swath through Fargo, North Dakota, killing 10 and injuring at least 103 people. The tornado was the northernmost confirmed F5 until the Elie, Manitoba tornado on June 22nd, 2007.

June 20th, 1989:

A meteorological "hot flash" hit Pierre. Descending air from collapsing thunderstorms caused the temperature to warm from 86 degrees at midnight to 96 at 1 a.m. and 104 at 2 a.m. Pierre's record high for the date was 105 degrees in 1974.