Outside of the fact that it will be very warm today, the main story is the chance for severe weather later this evening and tonight. A few strong to severe thunderstorm clusters capable of damaging wind gust and large hail are possible across the Chicagoland area this evening.
Supported by strong frontal forcing, a line of storms extending roughly from northeastern Michigan to southern Iowa is expected to develop along a frontal boundary and move south-southeastward this evening.
High temperatures across the area this afternoon will max out in the mid to upper 80s. This will boost energy values somewhere between 700 and 1,000 J/Kg. Despite the low humidity values, the ample daytime heating combined with a southward advancing cold front will should be efficient enough for strong surface convergence near the front.
As far as timing, thunderstorms are expected to initiate between 4pm and 8pm across Wisconsin before moving southward into northern Illinois. A few storms could warrant the issuance of a weather watch or two across the area if atmospheric conditions supportive of severe storms begin to come together later this evening.
Other at risk for severe weather today across the Great Lakes region includes Flint, Grand Rapids, Milwaukee, and Rockford. Outside of the Great Lakes region, there is a threat for severe weather today across the East Coast. Cities here that could see severe weather includes Baltimore, Washington D.C., Roanoke, Virginia Beach, Raleigh, Charlotte, and Columbia.
The month of May is the deadliest month in terms of lightning.
Things cool off on Wednesday as winds turn off the lake before a significant warm up takes place later this week and weekend.
Tuesday: Partly cloudy and unseasonably warm. Chance for PM showers and thunderstorms. Some could be severe with damaging winds and large hail. Highs in the upper 70s to mid 80s. Winds southwest 5-15 mph becoming north late 5-15 mph.
Wednesday: Mostly sunny and cooler. Cooler near the lake. Highs in the lower 60s to lower 70s. Winds northeast 5-15 mph.
Thursday: Partly cloudy and warmer. Highs in the mid 70s. Winds becoming southwest 5-15 mph.
Friday: Partly cloudy and unseasonably warm. Slight chance for a shower. Highs in the upper 70s to mid 80s. Winds southwest 10-20 mph.
Saturday: Partly cloudy, windy, and unseasonably warm. Highs in the mid to upper 80s. Winds southwest 15-25 mph gusting to 35 mph.
Sunday: Windy, warm, and humid. Chance for showers and thunderstorms. Highs in the mid 80s. Winds southwest 10-20 mph with higher gust.
Monday: Warm, windy, and humid. Chance for showers and thunderstorms. Highs in the upper 70s to lower 80s. Winds southwest 10-20 mph with higher gust becoming northwest 10-20 mph in the afternoon/evening.
8-15 day outlook (Long-range Forecast)
Tuesday May 22: Highs in the 60s.
Wednesday May 23: Highs in the 60s.
Thursday May 24: Highs in the 60s/70s.
Friday May 25: Highs in the 60s.
Saturday May 26: Highs in the 60s.
Sunday May 27: Highs in the 60s/70s.
Monday May 28: Highs in the 70s.
Tuesday May 29: Highs in the 60s/70s.
Wednesday May 30: Highs in the 60s/70s.
Be sure to check out my National Environmental News page for weather/climate related content and other environmental news.
Click on the “Subscribe” button above and enter your e-mail address to receive a free alert to our inbox when a new article is published by the Chicago Weather Examiner and/or the Chicago Snow Report Examiner. Follow us on Twitter! Become a fan of the Facebook page!