A cold front will cross the Great Lakes and Northeast U.S. through today with gusty winds and areas of rain showers. A strong atmospheric river is then expected to move into the Northwest by midweek bringing a threat for moderate to heavy rainfall and flooding, gusty winds, and mountain snows for parts of Washington, Oregon, northern California, and the Sierra Nevada. 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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