Severe thunderstorms are likely today across the northern Plains and into the upper Mississippi Valley. Gusty winds and dry conditions will result in widespread critical fire weather through Saturday across parts of the Four Corners region and the Great Basin. A significant and dangerous heat wave will expand from the Central U.S. into the Eastern U.S this weekend through much of next week. Read More >
Showers and thunderstorms tracked through Southern Wisconsin during the morning of Saturday, July 18th and again during the afternoon.
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Saturday Morning Line of Thunderstorms Radar Reflectivity 4:00 am - 7:30 am |
Saturday Morning Line of Thunderstorms Radar Velocity (bright colors associated with strongest wind speeds) 5:03 am - 7:32 am |
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Saturday Afternoon Line of Thunderstorms Radar Reflectivity 12:33 pm - 3:59 pm |
Saturday Afternoon Line of Thunderstorms Radar Velocity (bright colors associated with strongest wind speeds) 1:06 pm - 3:33 pm |
There were many reports of straight-lined wind damage. However, NWS storm survey results indicate a tornado caused some damage in East Central Rock County into West Central Walworth County from 2:40 to 2:50 pm. This is between Janesville and Elkhorn. It was determined to be an EF-1 tornado with winds up to 100 mph. It was about 50 yards wide with a path of about 5 miles. There were two main areas of EF-1 damage with farm field damage in between.
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| Barn Damaged in the Avalon/Johnstown area in Rock County | |
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| A shed collapsed in far western Walworth County, just north of Darien | |
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| Storm Relative Velocity- The bright red (outbound) and green (inbound) within the black circle identify rotation. This area coincides with reports of tornado damage. |
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| Brian Kerkman sent this picture along indicating he captured the tornado as it touched down. It's a little tough to see the condensation funnel against the dark backdrop, but it's there! |
| Tornado Path |
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This tornado brings the statewide tornado count for 2015 up to 12 tornadoes; 3 EF-1s and 9 EF-0s. Since 2001, Wisconsin averages approximately 26 tornadoes statewide annually.
National Weather Service
Milwaukee/Sullivan
-Cronce
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