Winona Parks & Recreation has implemented the following guidelines to deal with extreme heat at all youth practices, games and events. This policy is designed to provide participants with a standard for safe play in situations of extreme heat.
The two values that the WPR will take into account when modifying or canceling activities are air temperature and relative humidity. The combination of these two elements reflects the heat index. We will rely on the heat index reading that is updated hourly by the National Weather Service at https://www.weather.gov/
WPR observes four heat index zones based on recommended guidelines published by the American College of Sports Medicine (ACSM) for participation in sports activities during periods of extreme heat. Because the heat index does not take into account wind and direct sunlight, two degrees will be added to the stated heat index on sunny and still days. Likewise, two degrees will be subtracted on cloudy and windy days.
Heat Index Up to 89°
- Play impact: No game change recommended.
- Precaution: Observe players for signs of heat reactions. Coaches should substitute more frequently and observe players on the sideline. Players should be encouraged to remove helmets and drink extra water
Heat Index 90°-99°
- Play impact: Reduce play by one minute per quarter or 10 minutes per game.
- Precaution: In this range, staff are encouraged to take extra steps to protect their players by making sure they remain hydrated and by encouraging frequent substitution during games and practices. Players should remove helmets during water breaks. In addition, players should pour water on their heads and/or apply cold, wet towels to their necks in addition to drinking plenty of water.
Heat Index 100° - 104°
- Play impact: Activity time will be reduced by 15 minutes.
- Precautions: Players should remove helmets during water breaks. In addition, players should pour water on their heads and/or apply cold, wet towels to their necks in addition to drinking plenty of water. In addition, players and their parents should be reminded that players need to consume addition water after the game.
Heat Index 105°+
- Play impact: Activities will be canceled until the heat index returns to 105° or below.
- Notification will be delivered through the rainout line (507) 457-8220 and by email.
Note - During the course of the day, the heat index will rise and fall depending upon the time of day, amount of wind, cloud cover, etc. The above program modifications could also change throughout the course of the day, especially on a weekend. For example, a 1pm game on Saturday could be played under the 100°-104° guidelines and a 4pm game could be played under the 90°-99° guidelines.
Understand that the above are merely guidelines. It is the responsibility of parents to make the ultimate decision as to the participation of their child in activities when heat may be a factor, taking into consideration the age and physical condition of their child. Parents also have the ultimate responsibility to inform their child about the dangers of heat and need for protection, including sunscreen and proper hydration.

