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Heavy Rainfall in South Texas and Hawaii; Below Average Temperatures for Much of the East

Heavy rainfall is expected in extreme southern Texas and parts of the Hawaiian Islands into Monday. Flash-flood watches are effect for both areas. Temperatures from the Great Lakes to the southern Plains and through much of the eastern U.S. are expected to be below to well below average. Air stagnation concerns are likely across interior portions of the Northwest through Monday. Read More >

Overview

A few clusters of thunderstorms developed Sunday afternoon and quickly became severe across southeast South Dakota, and continued along the I-90 corridor into southwest Minnesota during the evenings hours. These scattered strong to severe storms produced large hail up to golf ball size, and localized heavy rain to over 2 inches.

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