National Weather Service United States Department of Commerce

Tracking Severe Thunderstorms and Excessive Rainfall in the Southern U.S.; Winter Storm Possible in the Northern U.S.

A storm system moving across Texas will bring a few severe thunderstorms capable of large hail into this evening across parts of west Texas. Heavy to excessive rainfall may bring flooding into tonight from west Texas into northern Texas before shifting into the lower Mississippi Valley through Monday. A winter storm may impact the northern Plains and Upper Midwest late Monday through Tuesday. Read More >

Fast Facts:

  • Shortly after 2 PM on Sunday, August 28th, strong to severe thunderstorms rolled across portions of northern Illinois. 
  • These storms were aided by a "Mesoscale Convective Vortex", which is a term referring to an area of low pressure aloft that is reinforced or augmented by earlier convection. 
  • These thunderstorms produced scattered wind damage, with somewhat more concentrated swaths of damage and heavy rainfall occurring across central DeKalb County. 
  • Storms exited the region through the mid evening hours, though another round of severe storms was experienced across part of the region the next day, Monday, August 29th. 
Image
Summary of severe weather and heavy rain reports
nws logo Media use of NWS Web News Stories is encouraged!
Please acknowledge the NWS as the source of any news information accessed from this site.


Additional recaps can be found on the NWS Chicago Past Events Page
nws logo