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Lala Approaching Hawaii; Flash Flooding Risks; Excessive Heat

Lala, may become a hurricane, is expected to impact Hawaii this weekend. Heavy rainfall, strong winds, dangerous surf and localized flooding are expected. Heavy rainfall and flash flooding concerns from the mid-Mississippi Valley, Ohio Valley into the central Appalachians continues, with the threat shifting toward the mid-Atlantic later this weekend. Record heat continues for areas of the South. Read More >

Overview

A strong storm system moved through the central U.S. on March 28, 2020. This brought a strong warm front northward into northeast Iowa and far southwest Wisconsin. Thunderstorms formed during the afternoon hours north of the warm front and brought many reports of small hail covering the ground. In the late afternoon and early evening, storms formed near the warm front and produced brief tornadoes which caused damage in Oelwein, Iowa, near Maynard, Iowa, and north of Potosi, Wisconsin.

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Radar Loop of the Tornado-producing Time Frame
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