Tuesday, July 10, 2012

Alberta, Canada, heat wave prompts warnings to stay in cool settings and limit outdoor activity - @CBCNews

Another hot day on tap today for Alberta, where high temperatures have strained the electrical grid and resulted in some rolling blackouts, is prompting warnings to stay in cool settings and limit outdoor activity.

In Edmonton, temperatures are expected to soar to 32 C. With the humidity, it is expected to feel closer to 35 C.

Calgary is expected to reach a high of 30 C.

Humidex advisories have been issued for east-central Alberta and southern Saskatchewan, where elevated humidity will give humidex values of 40 degrees or more.

"It is advised to stay in an air-conditioned place or seek shade when possible, drink plenty of water and limit physical outdoor activity," Environment Canada said in a special weather statement.

On Wednesday, there will be slightly less humidity in the air but it will still feel like the mid-30s, according to CBC meteorologist Johanna Wagstaffe.

Heavy power demand

On Monday, Edmonton, Calgary, Red Deer and Lethbridge were hit by rolling blackouts because of heavy load on the power grid caused by the first heat wave of the summer. The province experienced 30-minute rolling outages

The Alberta Electric System Operator (AESO) said demand on the province's electrical system was pushed to record highs..

The unprecedented demand prompted utility operators to ask Albertans to:

  • Shut off lights and electrical appliances that aren't needed.
  • Minimize air conditioner use
  • Not run dishwashers, washers and dryers.

Dozens of daily temperature records fell Monday across British Columbia, Alberta, Saskatchewan and the Northwest Territories. Even Vancouver was at its hottest this year at 25 C, Wagstaffe said.