Extreme heat warning expanded to include most of southern Manitoba, Winnipeg

An extreme heat warning for parts of northern Manitoba has been updated to cover much of the province, includingWinnipeg.

Beginning Thursday and extending through Friday, Saturday and likely Sunday, temperatures of 32 C or hotter are expected, Environment Canada said Thursday. Overnight temperatures are also expected to stay high, providing little relief from the heat.

Over the same time period with respite expected Sundaydaytime highs in northern Manitoba are expected to exceed 29 C, the agency said.Overnight temperatures are expected to stay high in these regions, too.

That's classified as extreme heat in northern Manitoba.

Areas under the warning:

• Arborg Hecla Fisher River Gypsumville Ashern.
• Brandon Neepawa Carberry Treherne.
• City of Winnipeg.
• Dauphin Russell Roblin Winnipegosis.
• Dugald Beausejour Grand Beach.
• Flin Flon Cranberry Portage Snow Lake.
• Grand Rapids Waterhen.
• Island Lake Oxford House Gods Lake.
• Killarney Pilot Mound Manitou.
• Lynn Lake Leaf Rapids Pukatawagan.
• Melita Boissevain Turtle Mountain Provincial Park.
• Minnedosa Riding Mountain National Park.
• Morden Winkler Altona Morris.
• Norway House Cross Lake Wabowden.
• Portage la Prairie Headingley Brunkild Carman.
• Selkirk Gimli Stonewall Woodlands.
• Ste. Rose McCreary Alonsa Gladstone.
• Steinbach St. Adolphe Emerson Vita Richer.
• Swan River Duck Mountain Porcupine Provincial Forest.
• The Pas Wanless Westray Clearwater Lake Prov. Park.
• Thompson Nelson House Split Lake.
• Virden Souris.

Environment Canada says an upper-level ridge of high pressure is expected to reach the area.The humidity will be moderate throughout and the winds light, but the UV index will be high.

Smoke from forest fires in B.C. may also reduce air quality in the area.

Residents and visitors should schedule activities for cooler parts of the day and take breaks from the heat to stay hydrated, Environment Canada says.