OHSAA heat guidelines for practices, events


This procedure is to be used until such time as the temperature is below 84 degrees as no combination of heat and humidity at that level will result in a need to curtail activity.

1. Thirty minutes prior to the start of activity, temperature and humidity readings should be taken at the site.

2. The temperature and humidity should be factored into the Heat Index Calculation and Chart and a determination made as to the Heat Index. If schools are utilizing a digital sling psychrometer that calculates the Heat Index, that number may be used to apply to the table.

3. If a reading is determined whereby activity is to be decreased (above 95 degrees Heat Index), then rereadings would be required every thirty minutes to determine if further activity should be eliminated or preventative steps taken, or if an increased level of activity can resume.

4. Using the following table, activity should be altered and/or eliminated based on this Heat Index as determined:

Under 95 degrees Heat Index—

• Optional water breaks every 30 minutes for 10 minutes in duration to allow hydration as a group.

• Have towels with ice for cooling of athletes as needed.

• Watch/monitor athletes carefully for necessary action.

• Re-check temperature and humidity every 30 minutes if temperature rises in order to monitor for increased Heat Index.

95 degrees to 99 degrees Heat Index—

• Water shall always be available and athletes shall be able to take in as much water as they desire.

• Mandatory water breaks every 30 minutes for 10 minutes in duration to allow for hydration as a group.

• Have towels with ice for cooling of athletes as needed.

• Watch/monitor athletes carefully for necessary action.

• Helmets and other equipment should be removed when athlete not directly involved with competition, drill or practice and it is not otherwise required by rule.

Notes: Reduce time of outside activity. Consider postponing practice to later in the day. Re-check temperature and humidity every 30 minutes to monitor for increased Heat Index.

100 degrees (above 99 degrees) to 104 degrees Heat Index—

• Water shall always be available and athletes shall be able to take in as much water as they desire.

• Mandatory water breaks every 30 minutes for 10 minutes in duration to allow hydration as a group.

• Have towels with ice for cooling of athletes as needed.

• Watch/monitor athletes carefully for necessary action.

• Alter uniform by removing items if possible and permissible by rules.

• Allow athletes to change to dry shirts and shorts at defined intervals.

• Reduce time of outside activity as well as indoor activity if air conditioning is unavailable.

• Postpone practice to later in day.

• If helmets or other protective requirement are required to be worn by rule or normal practice, suspend practice or competition immediately.

Note: Re-check temperature and humidity every 30 minutes to monitor for changes in Heat Index.

Above 104 degrees Heat Index—

• Stop all outside activity in practice and/or play, and stop all inside activity if air conditioning is unavailable.

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