National Weather Service United States Department of Commerce

Cold Front Dropping South Across the Western U.S.; Watching Threat for Tornadoes and Flooding in the South

A cold front will push south across the Western U.S. into Tuesday with mountain snow and areas of gusty to high winds. An area of low pressure will form along this front on Tuesday and bring a potential for severe thunderstorms with tornadoes and excessive rainfall in the lower to mid Mississippi River Valley. To the north, heavy snow is possible in parts of the upper Midwest. Read More >


Fast Facts:

  • A brief tornado occurred from a quickly intensifying storm over Waukegan, IL early on Tuesday evening, September 3.
  • The tornado was rated an EF-1 on the Enhanced Fujita scale with maximum winds of 90 mph.
  • Damage included a flipped car with one injury, minor damage to commercial buildings, and several trees downed.
  • The threat for possible severe weather on Tuesday had been noted in NWS products and graphics since Sunday. Coverage of storms on Tuesday evening was very limited, in fact between 5 and 9 p.m. that was the only storm in all of northern Illinois.
Waukegan Tornado
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Additional recaps can be found on the NWS Chicago Past Events Page
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