National Weather Service United States Department of Commerce

Dangerous Heat Continues in the Central and Southern U.S.; Severe Weather and Heavy Rain in the Northern Plains

Dangerous, prolonged heat is expected across portions of the Central and Southeast U.S. through July. Scattered severe thunderstorms are expected over parts of the northern Plains into the upper Mississippi Valley today, with damaging winds and large hail as the primary threats. Heavy rainfall could lead to areas of flooding across the northern Plains, Upper Midwest, Southeast and Southwest. Read More >

Overview

Fast Facts:

  • A major storm system impacted a large amount of the U.S., from heavy rain in the mid-Mississippi Valley to Great Lakes, heavy snow in Colorado, Kansas, and Nebraska, severe storms and tornadoes including in Texas, and gusty winds.
  • Multiple periods of moderate to heavy rain, at times occurring with thunder, fell across northern Illinois and northwest Indiana during the weekend of April 29-30.
  • Two-day rain totals of 1.50" to over 5" were observed across the entire area, with the heaviest of 3" to 5+" centered on the Illinois River Valley to Chicago during the afternoon and evening of April 29th.
  • The highest rainfall amounts were 5.42" in Minooka near the Grundy/Will County border, and in central LaSalle County including 5.34" in LaSalle, 4.90" near Ottawa, and 4.74" in Peru. 
  • Chicago (O'Hare) officially recorded 3.27" of rainfall.
  • The rainfall brought localized flooding in numerous locations as well as sharp rises on tributaries of the Illinois River and the Illinois River itself.
  • Gusty winds were observed on Saturday evening, April 29.  The highest gusts were between 40 and 55 mph.
Radar Loop
Radar Loop from Saturday, April 29 - Sunday April, 30
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