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Flash Flooding Likely into Tonight for Portions of Kansas and Missouri; Heat Wave Expands to the East Coast; Tropical Storm Krosa Forms Near the Marianas.

Flash flooding likely in northeast Kansas & Missouri into tonight. Widespread extreme heat will develop and persist across much of the Southeast this weekend & next week. Tropical Storm Krosa has formed and will continue to cause heavy rain across Guam & the CNMI through Saturday. Severe storms with flooding rains expected into tonight for portions of the Midwest. Read More >

Overview

Severe storms with tornadoes, large hail, damaging straight-line winds, heavy rain, and flash flooding moved across northeastern Wyoming and western South Dakota during the afternoon and evening of July 3, 2019. Tornadoes were reported near both Allen, South Dakota, and southwest of Dewey, South Dakota (located across the border in Wyoming). The lightning map to the right shows that there were concentrated areas of cloud-to-ground lightning flashes in both of those areas.

24-h CG lightning ending 6 am July 4th, 2019
24-hour cloud-to-ground lightning from 6 am July 4 to 6 am July 5, 2019
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