Severe Weather in the Plains; Heavy Rainfall in the Northern Plains, Tennessee Valley and Southeast

Numerous severe thunderstorms with a potential for 60-80 mph winds, along with tornadoes (some strong), and large to very large hail are expected across the northern and central Plains through tonight. Heavy to excessive rainfall may bring a flooding threat to parts of North Dakota and Minnesota, and from the Ohio Valley to the Southeast through tonight. Read More >

Radar images from April 13th, 2006. Click on images for larger view.
WSR-88D radar reflectivity images of the Iowa City tornadic supercell thunderstorm at 624, 629 and 633 pm. The scale is on the left in each figure. Warmer colors indicate higher intensity and cooler colors indicate lesser intensities.	WSR-88D radar velocity images of the Iowa City tornadic supercell thunderstorm at 624, 629 and 633 pm. The scale is on the left in each figure. Green shades indicate motion toward the radar and red shades indicate motion away from the radar. The radar is located to the east (right) on the image. A counter clockwise circulation (called a mesocyclone) is apparent just south of Iowa City at 633 pm where the green (toward the radar) and red (away from the radar) are adjacent to each other.

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Severe Weather in the Plains; Heavy Rainfall in the Northern Plains, Tennessee Valley and Southeast

NWS Quad Cities Radar April 13, 2006