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 >

This photo of large hail was taken by Spokane 16, Bob Lutz, in Otis Orchards on the afternoon of June 10th, 2003 after the passage of a severe thunderstorm. These ice balls ranged in size from 1 inch to 1 1/2 inches in diameter, or from quarter size to walnut size. A severe thunderstorm produces hail of at least 3/4 inch.

Large Hailstones