National Weather Service United States Department of Commerce

Extreme Heat and Tropical Storm Bertha Impacts

Dangerous heat will expand from the Gulf Coast into the Southern Plains and Desert Southwest through week's end. Additional extreme heat impacting the Pacific Northwest will shift to the northern Plains by the weekend. Tropical Storm Bertha is expected to continue to impact portions of the northern Gulf Coast from the western Florida Panhandle to southeastern Louisiana through tonight. Read More >

Overview

Fast Facts:

  • A tropical-like air mass that was extremely rare for October results in a period of very heavy rainfall late Wednesday evening into very early Thursday morning, primarily between 11 PM and 2 AM.
  • The area that saw training...or multiple showers and storms...was DuPage into central Cook County, including the immediate north side of Chicago, where over 2 inches of rain fell.
  • This resulted in flash flooding, especially under viaducts, including those under Lake Shore Drive which resulted in the closure of the major road for nearly two hours.
  • The likelihood of heavy rain and the potential for flooding within the region during this period had been mentioned in the forecast since the weekend.
Summary Graphic
Event Summary
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Additional recaps can be found on the NWS Chicago Past Events Page
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