Thunderstorms, Heavy Rain Possible

***Stay tuned to WISN for the latest on heavy rain and severe weather chances!***

With a warm and very humid Saturday across the region, thunderstorms are developing as of this writing.  Thunderstorms and rain will push across southern Wisconsin from Saturday afternoon right through the evening hours before tapering to showers and ending overnight.

With high dew points, and the possibility of thunderstorms moving over the same locations, the threat for heavy rain exists.  1″-2″ of rain could fall in a short time period within the strongest thunderstorms.  Also, strong winds and hail could accompany some thunderstorm cells.  You can track them with our interactive radar.

www.wisn.com/irad

As the first thunderstorms developed this afternoon a quick funnel was spotted by several individuals in Sun Prairie, WI.  This picture is courtesy of R. Wotjak.  The funnel only lasted for a short time and did not touch the ground to produce a tornado.

And one more picture comes from J. Hodgson of Sun Prairie.

For our area, I think the greatest concern is heavy rain.  Below is the rainfall forecast from our in-house high resolution computer model.  Use this as guidance as to how much rain MAY fall the next 36 hours.  Lesser amounts of rain should fall around Fond du Lac and Sheboygan, with heavier totals near the WI/IL border.

While one or two strong to severe storms can not be ruled out in southeast Wisconsin, the widespread severe weather threat should stay just to our south.  Here is the latest update(3 p.m.) from the Storm Prediction Center.  The green line which is close to the WI/IL border represents a slight risk of severe weather, mainly hail or strong winds.

If you have a storm related photo or report please send it to WISN.  Storm photos can be posted to the U-Local section of our website, or email them to jdnelson@hearst.com  I would also love to see your rainfall totals so I can show some on WISN 12 News.

You can also keep up-to-date with our updates on Facebook at WeatherWatch 12 and on Twitter at WISN12News.

Look for more updates as the day/evening progresses and watch WISN 12 News for the latest radar updates!

Jeremy Nelson

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4 Responses

  1. What time do you think the rain will wrap up tonight in Pewaukee? How much should we expect?

    • Lori,

      Rainfall amounts are going to vary since we are dealing with t-storms. Most of the rain ends by midnight or so. Totals will be from 0.25″ to over 1.50″. Jeremy

  2. Hi Jeremy, i would like to mention that we had 1.8″ of rain in the Town of Raymond in central Racine County

    • Kevin,

      I’ll try to mention your total…just put the graphic together. I’m also adding a list to the blog. Thanks!

      Jeremy

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