100 Percent Chance Of Thunderstorms Friday Night Into Saturday

MILWAUKEE, WI — This weekend's weather might provide an extra incentive to stay indoors amid the coronavirus stay-at-home order as multiple rounds of scattered thunderstorms are expected to move into the southeastern Wisconsin area starting Friday night. The storms are expected to last through the weekend.

According to the National Weather Service, scattered thunderstorms are expected Saturday afternoon and early evening. There is a chance for a strong to severe thunderstorm producing large hail or damaging wind gusts. A Slight Risk for severe storms is expected much of southern Wisconsin including Madison and Milwaukee and locations to the south.

Periods of moderate to localized heavy rainfall from tonight into Saturday evening will likely cause several rivers to rise above flood stage over the weekend, weather observers said. There is a chance that one or two of these storms becomes severe, producing hail to 1.5 inches and damaging winds of 60 miles per hour.

Weather At A Glance

Location

There is a better chance for a severe thunderstorm along and south of a line from
Milwaukee to Portage to Spring Green.

Timing and Duration

Mainly between 1 p.m. and 8 p.m. Saturday.

Impacts

Isolated structural damage from large hail and strong winds. Falling tree limbs may cause isolated power outages. Localized rural and urban street flooding.

Certainty and Considerations

Medium confidence on a strong to severe thunderstorm developing Saturday afternoon. Uncertainty remains on amount of instability that will develop after morning showers.

Forecast

Friday Night

Showers, mainly after 9 p.m. Patchy fog after 11 p.m. Low around 40. Northeast wind 5 to 10 miles per hour. Chance of precipitation is 100 percent. New precipitation amounts between a quarter and half of an inch possible.

Saturday

Showers, with thunderstorms also possible after 1 p.m. Patchy fog. High near

55. East wind 10 to 15 miles per hour. Chance of precipitation is 100 percent. New rainfall amounts between a quarter and half of an inch possible.

Saturday Night

Showers and possibly a thunderstorm before 1 a.m., then a chance of showers. Patchy fog before 1 a.m. Low around 43. East wind around 15 miles per hour becoming southwest after midnight. Winds could gust as high as 30 miles per hour. Chance of precipitation is 80 percent. New rainfall amounts between a half and three quarters of an inch possible.