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 >

Weather History - April 20th

Local and Regional Events:

April 20th, 1966:

Canadian high pressure brought frigid air to the Rockies and northern Plains. Record lows included three below in Scottsbluff, Nebraska, two below in Cheyenne and Casper, Wyoming, two above in Rapid City, 11 above in Fargo, Williston, and Aberdeen, and 15 in Huron.

April 20th, 2007:

Severe thunderstorms moved through parts of central and northeast South Dakota during the afternoon and evening, producing large hail. The most significant hail measured 1.75 inches in diameter and fell 3 miles east of Westport in Brown County.

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Lala Approaching Hawaii; Flash Flooding Risks; Excessive Heat

This Day in Weather History: April 20th