FORECAST UPDATED 10:06 PM WEDNESDAY
A building area of summer-like heat over the Midwest and Great Lakes will keep us warm and humid for the foreseeable future. Around this dome, the contrast between the heat and cooler temperatures to the north likes to develop thunderstorms. Wisconsin will be in the direct path of these thunderstorms tomorrow afternoon into early Friday.
This is a predictable severe weather setup. About as good a chance as we've seen this year. The thunderstorms tomorrow afternoon look to be strong to locally severe. The primary threat being damaging wind gusts and brief flooding rainfall. The entire area is well above average in rainfall. The soil is wet and the tree root structures are loose. This instability could lead to widespread power outages as the stronger storms take down trees tomorrow afternoon.
Partly cloudy and increasingly more humid tonight. The southwest breeze will go calm as low temperatures settle in the upper 50s to low 60s.
Mostly sunny, warm and humid tomorrow morning. The more sunshine we see will directly feed into the increased severe weather threat tomorrow afternoon. Otherwise, increasing clouds through the afternoon will develop showers and thunderstorms later in the day. Any of the thunderstorms could be strong to locally severe. If you have outdoor plans tomorrow, its a good idea to keep one eye on the weather and a plan to seek shelter quickly. Depending upon the cloud cover, highs will be in the low to middle 80s before the thunderstorms.
Looking ahead, the severe weather threat will diminish tomorrow evening. Most likely before midnight. Scattered showers and a few non-severe thunderstorms will linger into Friday. We are in a very humid, unstable airmass. A few additional thunderstorms could develop with the heat tomorrow afternoon with highs in the middle to upper 80s.
MAKE it a GREAT Day!