National Weather Service United States Department of Commerce

Severe Storms Expected Across Upper Midwest

Strong to severe thunderstorms with damaging winds, large hail, and heavy rain are expected across the Upper Mississippi Valley, which includes the Twin Cities metro area. Meanwhile, heavy rain and thunderstorms may produce flooding across the Mid Mississippi Valley and in the St. Louis metro region. Read More >


Click on the links in the table below in order to access radar imagery for particular storms from the tornado outbreak on May 3, 1999. Radar data from the Twin Lakes, OK radar (KTLX) are available for "Storm A" and "Storm B". Images from the Terminal Doppler Weather Radar (TDWR) for Will Rogers World Airport are also available for "Storm A" as it passed through the Oklahoma City metropolitan area.

Additional Information:

  • Radar loop of the outbreak by Travis Smith of NSSL