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Heat Warning in effect for Niagara

Posted Sep 6th, 2016 in Awareness

Heat Warning in effect for Niagara

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Humidex values expected to reach 40 to 42 degrees

Heat Warning in effect for:

Niagara Falls - Welland - Southern Niagara Region
St. Catharines - Grimsby - Northern Niagara Region

A Heat Warning is in effect for today and Wednesday. Temperatures are forecast to climb into the low thirties today and again Wednesday with humidex values reaching 40 to 42. There may be a few regions where the high temperatures and humidex values will continue into Thursday.

While heat can put everyone at risk from heat illnesses, health risks are greatest for

  • older adults;
  • infants and young children;
  • people with chronic illnesses such as breathing difficulties, heart conditions or psychiatric illnesses;
  • people who work in the heat;
  • people who exercise in the heat;
  • homeless people; and
  • people without access to air conditioning.
Drink plenty of liquids especially water before you feel thirsty to decrease your risk of dehydration. Thirst is not a good indicator of dehydration.

Frequently visit neighbours, friends and older family members, especially those who are chronically ill, to make sure that they are cool and hydrated.

Never leave people or pets in your care inside a parked vehicle or in direct sunlight.

Heat warnings are issued when very high temperature or humidity conditions are expected to pose an elevated risk of heat illnesses, such as heat stroke or heat exhaustion.

Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to or tweet reports to #ONStorm.

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