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WEATHER U: Heat warnings - whether or not

Summer is here and the “livin” is easy!   Judy LeBlanc-Brennan came across this happy group of people floating down the Margaree River in Cape Breton.  Lupins always add a splash of colour in July and the brightly coloured inner tubes complimented this perfect summer scene.
Summer is here and the “livin” is easy! Judy LeBlanc-Brennan came across this happy group of people floating down the Margaree River in Cape Breton. Lupins always add a splash of colour in July and the brightly coloured inner tubes complimented this perfect summer scene. - Contributed

We wait for this all winter – sun and heat. While I realize not everyone is a fan of this sultry summer weather, there’s not much we can do to change it. Instead, we can learn to use the proper terminology while enjoying an ice cream cone. (I will, anyway.)

high temperatures will be near record-setting and the humidity will make it feel even warmer. Every time the temperature soars, people start asking about warnings. So far this summer, heat warnings have been on and off for various corners of the region.

When it comes to heat warnings, there are two categories: those triggered by very warm air temperatures and those brought on by very high humidity levels.

As far as the criteria for issuing any type of warning, you’ll find regional variations. In the case of heat warnings, it stands to reason that the temperature threshold would not be the same in central Alberta as it would be in central Labrador.

Heat warnings are issued when the following conditions are forecast:

NEW BRUNSWICK:

Two consecutive days with daytime highs at or above 30 C and overnight lows of 18 C or warmer;

or

Two or more consecutive days with a humidex reading of 36 C or more.

NOVA SCOTIA:

Two consecutive days with daytime highs at or above 29 C and overnight lows of 16 C or warmer;

or

Two or more consecutive days with a humidex reading of 36 C or more.

PRINCE EDWARD ISLAND:

Two consecutive days with daytime highs at or above 27 C and overnight lows of 18 C or warmer;

or

Two or more consecutive days with a humidex reading of 35 C or more.

NEWFOUNDLAND AND LABRADOR

Two consecutive days with daytime highs at or above 26 C and overnight lows of 15 C or warmer;

or

Two or more consecutive days with a humidex reading of 34 C or more.

Stay cool and hydrated and be especially vigilant around the very young and the elderly; keep an eye on your pets too!

Do your best to enjoy the summer! In less than six months, we’ll be sharpening our skates for a twirl on a frozen pond.



Cindy Day is the chief meteorologist for SaltWire Network.

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