Winnipeg Free Press - PRINT EDITION

Slow thaw foils forecast

Flood season pushed into May

  • Print

The water is coming, that much we know for sure. Now it's just a matter of when and how much.

And the slowness of the spring thaw has left the answer to that key question as clear as Red River mud.

"It's not taking a lot of the snow out," Emergency Measures Organization Minister Steve Ashton said of the slow melt at Friday's flood outlook briefing. "There's a lot of snow that's still out there in rural Manitoba that's not really impacted by even what's taken place now."

The forecast now calls for colder weather to continue into the next month with the spring thaw to finally take hold sometime in the first week of April.

It's the pace of that melt and how much more snow or rain falls, on both sides of the border, that will determine the extent of spring flooding in the Red River Valley, the Assiniboine River and other rivers and streams in southern Manitoba.

In North Dakota, the National Weather Service on Friday raised its spring flood forecast by a foot due to rain and snow that fell on the state earlier this week.

Because of that, Manitoba's flood forecasters are now predicting, with average weather, that flooding in the Red River Valley will be "slightly higher" (1.3 feet to 2.3 feet) than in 2009, the fourth-worst flood on record. If we get hit by bad weather over the next three weeks, flood levels could approach what was seen during the 1997 Flood of The Century when much of the valley was under water.

"It's not only precipitation," provincial flood forecaster Phillip Mutulu said. "It's also how fast that snow is going to melt."

The cold weather will also likely extend flood season into early May with the flood crest to hit Winnipeg likely in late April, about 10 days to two weeks after it passes through Fargo., N.D.

"There's a lot of time ahead," Ashton said. "We have a fairly long window here for flooding. We're going have to watch the weather very closely. It's certainly a significant element right now."

Flooding is also expected along the Souris River, the Pembina River and the Fisher River, the degree depending on weather and rate of the spring thaw.

"We are clearly looking at the high potential for flood," Ashton said. "That's why we're in a high state of alert and prepared."

One thing not expected to be a factor this year is river ice jams. Crews have finished smashing more than 30 kilometres of ice north of Selkirk to the mouth of Lake Winnipeg to ease the flow of ice and floodwater in to Netley Marsh. Cutting is now taking place on the Whitemud River and the Icelandic River at Riverton. Work is also taking place on the Brokenhead River, the Portage Diversion and soon on the Fisher River and Assiniboine River near Glenboro.

More than 230 pieces of heavy machinery are continuing work on a new 112-km clay dike on the Assiniboine River between Portage la Prairie and Elie. It will be finished before the river crests in mid-to-late April.

bruce.owen@freepress.mb.ca

Republished from the Winnipeg Free Press print edition March 26, 2011 A8

Fact Check

Fact Check

Have you found an error, or know of something we’ve missed in one of our stories?
Please use the form below and let us know.

* Required
  • Please post the headline of the story or the title of the video with the error.

  • Please post exactly what was wrong with the story.

  • Please indicate your source for the correct information.

  • Yes

    No

  • This will only be used to contact you if we have a question about your submission, it will not be used to identify you or be published.

  • Cancel

Having problems with the form?

Contact Us Directly
  • Print

You can comment on most stories on winnipegfreepress.com. You can also agree or disagree with other comments. All you need to do is be a Winnipeg Free Press print or e-edition subscriber to join the conversation and give your feedback.

You can comment on most stories on winnipegfreepress.com. You can also agree or disagree with other comments. All you need to do is be a Winnipeg Free Press print or e-edition subscriber to join the conversation and give your feedback.

Have Your Say

New to commenting? Check out our Frequently Asked Questions.

Have Your Say

Comments are open to Winnipeg Free Press print or e-edition subscribers only. why?

Have Your Say

Comments are open to Winnipeg Free Press Subscribers only. why?

The Winnipeg Free Press does not necessarily endorse any of the views posted. By submitting your comment, you agree to our Terms and Conditions. These terms were revised effective April 16, 2010.

letters

Make text: Larger | Smaller

LATEST VIDEO

Mayor Bowman reacts to Caspian investigation

View more like this

Photo Store Gallery

  • A baby Red Panda in her area at the Zoo. International Red Panda Day is Saturday September 15th and the Assiniboine Park Zoo will be celebrating in a big way! The Zoo is home to three red pandas - Rufus, Rouge and their cub who was born on June 30 of this year. The female cub has yet to be named and the Assiniboine Park Zoo is asking the community to help. September 14, 2012  BORIS MINKEVICH / WINNIPEG FREE PRESS
  • Winnipeg’s best friend the dragon fly takes a break at English Gardens in Assiniboine Park Wednesday- A dragon fly can eat  food equal to its own weight in 30 minutes-Standup photo- June 13, 2012   (JOE BRYKSA / WINNIPEG FREE PRESS)

View More Gallery Photos

Poll

Will you watch The Interview?

View Results

View Related Story

Ads by Google