SULLIVAN – As an expected 50,000 delegates and attendees make their way around downtown Milwaukee for the Republican National Convention this morning, they will have to contend with both high heat and humidity during the day and severe weather this evening.
The National Weather Service says a first round of storms will dissipate as it moves across western Wisconsin during the late morning and early afternoon. However, a second round of thunderstorms around 6:00pm could carry a better chance for high winds and hail.

High temperatures Monday are expected to reach around 90 degrees, with heat index values in the upper 90s to around 100 degrees. The CDC offers these tips to avoid heat exhaustion or heat stroke:
- Stay in air conditioning. When possible, stay in air conditioning on hot days. If you don’t have air conditioning, head to a library, shopping mall, and other public spaces to keep cool.
- Check on loved ones. Extreme heat can affect anyone of any age, including youth and adults. Be sure to check on older friends and neighbors who live alone and don’t have air conditioning.
- Avoid the hottest part of the day. If you have to be outside, stick to the cooler morning and evening hours. Wear light, loose clothing and take frequent, air conditioned breaks.
- Beware of hot cars. Never leave a person or a pet in a parked car, even for a short time. On an 80 degree day, the temperature inside a car can reach 100 degrees in less than 10 minutes.
- Stay hydrated. Drink plenty of water on hot days. Avoid alcohol and heavy meals. If you must be outdoors, drink a quart of fluid every hour or so. You can alternate water with a sports-type drink. Skip the caffeine and alcohol since they increase urination and dehydration.
Stay tuned to WTMJ this evening for complete Fleet Farm Storm Team coverage on-air and online.