At what WBGT does outdoor practice stop in Mississippi?

Using Georgia's GHSA chart, which matches the MHSAA's practice limits, Sports Safe stops outdoor practice above 92.0°F WBGT.

How long can practice last at each heat level in Mississippi?

Under Georgia's GHSA chart, which matches the MHSAA's practice limits, the practice time limits are: Modify activity, 87.0 to 89.9°F: 2 hours; Severe restriction, 90.0 to 92.0°F: 1 hour. Levels not listed have no time limit stated, and at the top level outdoor practice stops.

Does Sports Safe use the heat chart for Mississippi automatically?

Yes. Sports Safe uses Georgia's GHSA chart, which matches the MHSAA's practice limits, for fields in Mississippi. You can choose a different chart for any field in its settings.

Mississippi MHSAA Heat Policy and WBGT Guidelines

The Mississippi High School Activities Association (MHSAA) requires WBGT readings to modify outdoor practices, and its practice limits match the GHSA chart from Georgia, so Sports Safe uses that chart for Mississippi fields. The lower levels and rest breaks below are Georgia's. Here are the activity limits at each level, and how Sports Safe applies them to your fields.

Outdoor practice stops

Above 92.0°F WBGT

Mississippi WBGT activity chart

Normal activity
Under 82.0°F
Practice limit: None stated
Normal activity. Provide at least 3 separate rest breaks each hour of a minimum of 3 minutes each.
Use discretion
82.0 to 86.9°F
Practice limit: None stated
Use discretion for intense or prolonged exercise; watch at-risk players carefully. 3 rest breaks/hour, 4 min each.
Modify activity
87.0 to 89.9°F
Practice limit: 2 hours
Maximum practice 2 hours. Football restricted to helmet, shoulder pads, and shorts. Provide 4 rest breaks/hour, 4 min each.
Equipment: Football: helmet, shoulder pads, and shorts only; remove all other protective equipment for conditioning.
Severe restriction
90.0 to 92.0°F
Practice limit: 1 hour
Maximum practice 1 hour. No protective equipment, no conditioning. 20 minutes of rest breaks distributed through the hour.
Equipment: No protective equipment. No conditioning activities.
No outdoor workouts
Above 92.0°F
Practice limit: No outdoor practice
No outdoor workouts. Delay practice until a cooler WBGT level is reached.

Mississippi WBGT activity chart
WBGT	Level	Practice limit	What the chart says
Under 82.0°F	Normal activity	None stated	Normal activity. Provide at least 3 separate rest breaks each hour of a minimum of 3 minutes each.
82.0 to 86.9°F	Use discretion	None stated	Use discretion for intense or prolonged exercise; watch at-risk players carefully. 3 rest breaks/hour, 4 min each.
87.0 to 89.9°F	Modify activity	2 hours	Maximum practice 2 hours. Football restricted to helmet, shoulder pads, and shorts. Provide 4 rest breaks/hour, 4 min each. Equipment: Football: helmet, shoulder pads, and shorts only; remove all other protective equipment for conditioning.
90.0 to 92.0°F	Severe restriction	1 hour	Maximum practice 1 hour. No protective equipment, no conditioning. 20 minutes of rest breaks distributed through the hour. Equipment: No protective equipment. No conditioning activities.
Above 92.0°F	No outdoor workouts	No outdoor practice	No outdoor workouts. Delay practice until a cooler WBGT level is reached.

Key points

The MHSAA requires WBGT readings to modify outdoor practices. Its limits match Georgia's chart, so Sports Safe uses that chart for Mississippi fields. The lower levels and rest breaks shown here are Georgia's.
From 87°F WBGT, practice is limited to 2 hours, and football to helmets, shoulder pads, and shorts. From 90°F, practice is limited to 1 hour with no pads. Above 92°F, all outdoor practice stops.
The MHSAA says free smartphone apps that report WBGT can be used for readings, so no dedicated equipment needs to be bought.
A cold tub must be available at all outdoor practices.
The MHSAA's guidance covers practices. Confirm the rules for games with the MHSAA.

Common questions

At what WBGT does outdoor practice stop in Mississippi?: Using Georgia's GHSA chart, which matches the MHSAA's practice limits, Sports Safe stops outdoor practice above 92.0°F WBGT.
How long can practice last at each heat level in Mississippi?: Under Georgia's GHSA chart, which matches the MHSAA's practice limits, the practice time limits are: Modify activity, 87.0 to 89.9°F: 2 hours; Severe restriction, 90.0 to 92.0°F: 1 hour. Levels not listed have no time limit stated, and at the top level outdoor practice stops.
Does Sports Safe use the heat chart for Mississippi automatically?: Yes. Sports Safe uses Georgia's GHSA chart, which matches the MHSAA's practice limits, for fields in Mississippi. You can choose a different chart for any field in its settings.

How Sports Safe uses the Mississippi chart

Sports Safe estimates WBGT for each of your fields from current weather, checks it against this chart, and alerts you when a field moves into a stricter level. On the Organization plan, coaches can keep a timestamped log of meter readings and the actions taken.

An app estimate supports your decisions but is not a WBGT meter. Where your association requires readings from an approved instrument, use one for the reading of record.

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Source

The MHSAA publishes its WBGT table as an image. Sports Safe matched its practice limits to Georgia's chart using the MHSAA's guidance and July 2026 news coverage of the rules, so confirm the details against the MHSAA's table. View the source. Last reviewed October 3, 2026.

Sports Safe is not affiliated with or endorsed by the Mississippi High School Activities Association. Policies change, so always confirm the current rules with your association and follow your school's emergency action plan.