Tuesday’s image shows dark masses of flooded area around the Red River from Winnipeg south to Grand Forks, ND
NASA’s Earth Observatory said the images were produced using different settings in the sensors to better distinguish the river’s water from its banks.
Heavy snowfall and spring thunderstorms flooded many parts of Manitoba, including the Red River Valley.
Flood warnings are in place for most parts of the Red River north of Emerson near the border, the province said in its latest flood bulletin.
Doyle Piwniuk, Manitoba’s minister responsible for emergency measures, said water levels in some areas along the Red River have already peaked.
“The Red River peak is down at Emerson, peaked at St.-Jean Baptiste and (is) near peaking at Morris,” Piwniuk said Thursday.
The province has issued a surface flood warning for part of southwestern Manitoba and the southeast corner of the province, while a surface flood watch for all of southern Manitoba remains in effect.
A new low-pressure weather system is expected to bring 20 to 40 millimeters of rain from Thursday with the possibility of some areas exceeding 50 millimeters.
Environment and Climate Change Canada has issued special weather statements for several communities in southern Manitoba.
He said heavy rain and thunderstorms were expected in the Winnipeg area and in the western part of the province near Brandon.
“The risks we have with this rain event are obviously exacerbating or worsening surface flooding issues in any area that has flooding issues,” said Alysa Pederson, meteorologist at the weather agency.
“When we have severe storms or thunderstorms that can drop 50 millimeters in a few hours, even in mid-July, it can cause localized flooding. So it won’t be a good situation where there is already a lot of flooding or land problems. »
Pederson added that the combination of heavy rain and high winds means there is concern about further washouts in some areas.
There is also a high risk of ice accumulation on the eastern shore of Lake Manitoba, including areas along Twin Lakes and Lundar beaches, the province said. Strong winds could also raise water levels in flooded areas of the Red River Valley by up to about 30 centimeters.
Parts of Manitoba have recently been hit with heavy snowfall and rain. Most basins in southern Manitoba received 20 to 40 millimeters of rain earlier this week.
Pederson said those amounts are normal for this time of year, but not with the same frequency.
“We don’t usually see that many back-to-back events happening. Usually there are one or two. It’s (the) fourth or fifth week here with another system progressing.
There are 28 municipalities and four First Nations communities that have declared states of emergency, with 2,500 people homeless.
Three municipalities have requested resources to help deal with flooding ahead of the expected rainfall, Piwniuk said.
This report from The Canadian Press was first published on May 12, 2021.
This story was produced with the financial assistance of Meta and the Canadian Press News Fellowship.
Brittany Hobson, The Canadian Press