Sample Wind Velocity Preparedness Guide

Role of Teachers, Coaches, Intramural Supervisors

Where appropriate, prior to and during outside physical activities, check for wind warnings and cancel and/or make accommodations to activities where winds pose a hazard to students.

Tool that can be used

Anemometer –an instrument for measuring the speed of the wind (handheld model - $100.00).

Actions that Must be Taken

This section outlines actions that must be taken dependent upon the velocity of the wind.

For water activities follow the wind guidelines for participation/cancellation of the governing body of the activity (for example, rowing, sailing), outside activity provider, or school board.

Wind Speeds	Land Effect	Precautions/Actions that Must be Taken
0-19 km/h	Calm to Gentle breez Wind felt on exposed skin Leaves in constant motion	No precautions required Be vigilant for change in weather conditions
20-39 km/h	Breezy Dust and loose paper raised Branches of trees move	Continue outside activity. Teacher to secure items susceptible to being blown around Be vigilant for change in weather conditions
40-49 km/h	Strong Breeze Large branches in motion Umbrella use becomes difficult Empty plastic trash cans tip over	Teacher to take into consideration activity surroundings (for example, trees, unsecure objects ground cover (sand), and equipment being used Secure appropriate items Activity is to stop and/ or moved indoors when effect of wind poses a risk to participants
50-59 km/h	High Winds Whole trees in motion Resistance felt with walking against wind	Avoid outside activities
60 km/h Wind Speeds or Gust of Winds of 90 km/h	Twigs broken from trees Cars veer on road to large branches break off trees, small trees blow over Construction/temporary signs and barricades blow over Damages to tents and canopies	No outdoor activities

Role of Teachers, Coaches, Intramural Supervisors

Tool that can be used

Actions that Must be Taken

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