There are six host cities (Miami, Houston, Dallas, Monterrey, Kansas Metropolis and Atlanta) the place the WBGT may feasibly attain at the least 32C (90F) through the afternoon which might be thought of as excessive warmth stress the place the physique actually struggles to maintain itself cool.
To scale back these dangers, matches are usually scheduled outdoors the most popular a part of the day, with many kick-offs going down within the late afternoon or night. Scotland’s group C sport in opposition to Brazil in Miami, for instance, may have a kick-off time of 18:00 ET (23:00 BST).
Some venues, together with stadiums in Houston and Dallas, even have retractable roofs and local weather management to average situations.
Summer season heatwaves are additionally a typical incidence in North America and Mexico the place temperatures can rise 10C (18F) or extra above common, probably pushing situations into rather more difficult territory for each gamers and followers.
In New York for instance, the situation of this 12 months’s World Cup remaining on 19 July at 15:00 ET (20:00 BST), a typical heatwave may lead to air temperatures within the mid-30sC (mid 90F) and WBGT of round 30C (86F) resulting in excessive warmth stress.
