E-Newsletter dsfsfa An update from MBP March 18, 2022
mbbeef.ca
Province Releases March Flood Outlook (March 17, 2022 Province of Manitoba News Release)
Manitoba’s Hydrologic Forecast Centre has released its second 2022 spring flood outlook. The risk of major flooding on the Red River and tributaries remains high flood preparation activities are underway. Though significant high water activity is expected in southern Manitoba, flood water levels are expected to remain below community flood protection levels with water levels to be influenced by the rate of snowmelt and future snow and rain accumulation. There is also a risk of moderate flooding on the Assiniboine and Souris rivers and tributaries. The risk of flooding in the Interlake region and northern Manitoba is low, with the risk of lakes flooding due to spring run-off remaining low, except for the Whiteshell Lakes area, which has a potential for moderate flooding. With normal weather, water levels similar to 2020 are expected on the Red River. With the use of the Red River Floodway and the Portage Diversion, water levels at James Avenue in Winnipeg could reach 19.5 feet with unfavourable weather. The Portage Diversion may be operated to prevent ice jamming on the Assiniboine River east of Portage la Prairie to control river levels in the city of Winnipeg and areas along the Assiniboine River downstream of Portage la Prairie. Updated flood information will be shared next week. Executive Summary From the Outlook
The March Outlook Report prepared by the Hydrologic Forecast Centre (HFC) of Manitoba Transportation and Infrastructure reports the risk of moderate to major spring flooding in most southern Manitoba basins remains high. Water levels are expected to remain below dikes and community flood protection levels at all locations. The risk of flooding could change depending on weather conditions between now and the spring melt. Due to above normal to extremely above normal winter precipitation to mid-March, the Red River and its tributaries, including the Roseau, Rat and Pembina Rivers are at a high risk of moderate to major flooding. Due to below normal soil moisture at freeze-up and normal to well above normal winter precipitation, there is high risk of moderate flooding in the Assiniboine River and its tributaries including Souris River basin, and in the eastern region, including the Whiteshell Lakes area. The risk of spring flooding is low for Interlake and northern Manitoba regions. Most of the major lakes are below normal levels for this time of the year and within or very close to their operating ranges heading into the spring runoff. The risk of flooding for most lakes is low. Most lakes are expected to be within their desirable ranges after the spring runoff. The March Outlook Report in its entirety can be found at: www.gov.mb.ca/mit/floodinfo/pdf/2022/march_2022 _flood_outlook_report.pdf. More information about flooding and how to prepare for an emergency situation is available at www.gov.mb.ca/flooding.