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Displaying items by tag: rideau

January 10, 2020 – Environment Canada is forecasting significant precipitation in the form of rain or drizzle, freezing rain, ice pellets and snow starting Friday and continuing into Sunday with the greatest precipitation amounts on Saturday. There remains a considerable amount of uncertainty on exact precipitation amounts and what form it will take, however, rainfall amounts of between 50 and 75 mm are possible throughout the Rideau Valley watershed. 

Although no significant flooding is anticipated, water levels and flows are expected to increase in all waterways in the Rideau Valley Watershed. Depending on how much rain falls, residents who are adjacent to the smaller creeks and streams are advised to keep a close watch on water levels and flows and should take the necessary precautions to protect their property, such as:

  • Ensuring sump pump is clear, in good working condition and has a backwater valve
  • Ensuring easy access to a portable backup generator and pump

With the expected increase in water levels and flows in the coming days, ice cover on lakes, ditches, local streams and rivers will be unstable. Extreme caution should be exercised by everyone when near local waterbodies. Parents should inform their children of the risks and provide appropriate supervision.

This watershed conditions statement is in effect until Tuesday January 14, 2020 at 5 PM or until an update has been issued.


"Rideau Valley Conservation Authority is a partnership of municipalities within the Rideau Valley watershed created under the Conservation Authorities Act to deliver a range of programs in watershed management and natural resource conservation."

RVCA Watershed Conditions Statements:

  • Water Safety – High flows, unstable banks, melting ice or other factors that could be dangerous for recreational users such as anglers, canoeists, hikers, children, pets, etc. Flooding is not expected.
  • Flood Outlook – Early notice of the potential for flooding based on weather forecasts, calling for heavy rain, snow melt, high winds or other conditions that could lead to high runoff, cause ice jams and/or lakeshore flooding or erosion.
  • Flood Watch – Flooding is possible in specific watercourses or municipalities. Municipalities, emergency services and individuals in flood prone areas should prepare.
  • Flood Warning – Flooding is imminent or already occurring in specific watercourses or municipalities.

January 14, 2020 – With high water levels and fast flows all across the Rideau Valley Watershed, the ice cover (where present) on lakes, ditches, local streams and rivers will be unstable. Extreme caution should be exercised by everyone when near local waterbodies. Parents should inform their children of the risks and provide appropriate supervision.

On average, 50mm of rain fell across the Rideau Valley Watershed last Saturday before the temperature dropped to below freezing, resulting in significantly elevated water levels and flows in all waterways. The smaller creeks and waterways were impacted the most with ‘bankfull’ conditions observed in some areas, although the water levels are now stable or receding.

Although the flow in the Rideau River, our largest river, peaked at four times its average flow for this time of year at the Carleton University gauge, the flow increase did not result in any observed ‘bankfull’ conditions along the river. With the exception of tomorrow, the weather forecast is indicating below zero temperatures for the next several days so water levels and flows are expected to decline.

Please note that the RVCA does not monitor ice conditions. The RVCA’s Flood Forecasting and Warning team will continue monitoring weather, snowpack, water level and flow conditions and issue updates as required.

This watershed conditions statement is in effect until Monday January 20, 2020 at 5 PM or until an update has been issued.


"Rideau Valley Conservation Authority is a partnership of municipalities within the Rideau Valley watershed created under the Conservation Authorities Act to deliver a range of programs in watershed management and natural resource conservation."

 

RVCA Watershed Conditions Statements:

  • Water Safety – High flows, unstable banks, melting ice or other factors that could be dangerous for recreational users such as anglers, canoeists, hikers, children, pets, etc. Flooding is not expected.
  • Flood Outlook – Early notice of the potential for flooding based on weather forecasts, calling for heavy rain, snow melt, high winds or other conditions that could lead to high runoff, cause ice jams and/or lakeshore flooding or erosion.
  • Flood Watch – Flooding is possible in specific watercourses or municipalities. Municipalities, emergency services and individuals in flood prone areas should prepare.
  • Flood Warning – Flooding is imminent or already occurring in specific watercourses or municipalities.

March 9, 2020 (WCS – R03/2020) — The winter of 2019-20 has been warmer than average with near-average snowfall amounts. On January 11, about 50 mm of rain fell across the Rideau Valley Watershed, resulting in temporarily elevated water levels and flows in all waterways, and a noticeable ice layer within the snowpack. Current conditions at several RVCA and Parks Canada snow course sites are indicating above average water content amounts in the snow for this time of year.

The current short-term forecast indicates daytime high temperatures above zero and below zero conditions at night with precipitation expected tomorrow (up to 15 mm) and Friday (up to 20 mm). This forecast is favourable for ongoing snow melting. If the temperatures and precipitation come as forecast, much of the snow is expected to melt which will make water levels and flows rise over the coming weeks. This gradual process would result in average flooding this spring across the Rideau Valley watershed with inundation limited to low lying areas along all waterways. However, any significant rain events greater than 25 mm and/or significant temperature increases could influence actual flood conditions as we move through March and into April.

Water levels on lakes and flows in the streams are presently about normal for this time of year. Parks Canada staff who manage the water levels for the Rideau Canal have indicated that the levels will be maintained or lowered in the coming weeks to allow for water storage in the upper watershed lakes as the snowpack continues to melt.

City of Ottawa crews have begun the annual ice removal program on the Rideau River between Rideau Falls and Bronson Avenue. Crews will work to keep the ice from reforming until the spring freshet occurs (for more information: City of Ottawa information at 311). 

With the changing levels that can be expected over the coming weeks, ice cover on lakes, ditches, local streams, and rivers will continue to be unstable. Extreme caution should be exercised by everyone when near local waterbodies. Parents should inform their children of the risks and provide appropriate supervision. 

Residents in flood-prone or low-lying areas, historically susceptible to flooding, should take the necessary precautions to protect their property, such as:

  • Ensuring sump pump is clear, in good working condition and has a backwater valve 
  • Ensuring easy access to a portable backup generator and pump
  • Ensuring downspouts are clear and the outlet is at least 3 metres from the dwelling 
  • Securing items that might float away as flows increase 
  • Removing valuable items from basements or lower floors that could be subject to flooding
  • Keeping emergency phone numbers handy
  • Familiarizing yourself with your municipality’s Emergency Preparedness Plan

This watershed conditions statement is in effect until March 31, 2020, at 5 p.m. and will be updated at that time unless the forecast or conditions change.


"Rideau Valley Conservation Authority is a partnership of municipalities within the Rideau Valley watershed created under the Conservation Authorities Act to deliver a range of programs in watershed management and natural resource conservation."

 RVCA Watershed Conditions Statements:

  • Water Safety – High flows, unstable banks, melting ice or other factors that could be dangerous for recreational users such as anglers, canoeists, hikers, children, pets, etc. Flooding is not expected.
  • Flood Outlook – Early notice of the potential for flooding based on weather forecasts, calling for heavy rain, snow melt, high winds or other conditions that could lead to high runoff, cause ice jams and/or lakeshore flooding or erosion.
  • Flood Watch – Flooding is possible in specific watercourses or municipalities. Municipalities, emergency services and individuals in flood prone areas should prepare.
  • Flood Warning – Flooding is imminent or already occurring in specific watercourses or municipalities.

(WCS-LW - 5/2021)
October 6, 2021 – Watershed conditions in the Rideau Valley Watershed have returned to “Normal’ under the Ontario Low Water Response Program.

With above average rainfall amounts across the watershed over the last month, stream flows and water levels have recovered from the previous low water status and are now above average for this time of year.

Parks Canada continues to closely monitor the water levels throughout the Rideau Canal system inside the Rideau Valley watershed. Water levels in the reservoir lakes, located in the upper reaches of the Rideau Valley watershed, are now near normal for this time of year. Rideau River flows downstream of Big Rideau Lake remain at minimum value. Water levels in the Rideau River below Smiths Falls are within navigable ranges for this time of year.

Conservation Authority staff continue to monitor conditions and communicate with water managers throughout the watershed. Updates to this message will be issued as conditions warrant.

More resources:

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More Information:
Contact: Brian Stratton, RVCA Manager Engineering Services
Rideau Valley Conservation Authority

613-692-6804, 1-800-267-3504 ext. 1141

Rideau Valley Conservation Authority is a partnership of municipalities within the Rideau Valley watershed created under the Conservation Authorities Act to deliver a range of programs in watershed management and natural resource conservation.

RVCA Watershed Conditions Statements:

  • Water Safety – High flows, unstable banks, melting ice or other factors that could be dangerous for recreational users such as anglers, canoeists, hikers, children, pets, etc. Flooding is not expected.
  • Flood Outlook – Early notice of the potential for flooding based on weather forecasts, calling for heavy rain, snow melt, high winds or other conditions that could lead to high runoff, cause ice jams and/or lakeshore flooding or erosion.
  • Flood Watch – Flooding is possible in specific watercourses or municipalities. Municipalities, emergency services and individuals in flood prone areas should prepare.
  • Flood Warning – Flooding is imminent or already occurring in specific watercourses or municipalities.

 

Contact Us

Address:
Rideau Valley Conservation Authority
3889 Rideau Valley Drive
Manotick, Ontario K4M 1A5

Phone:
613-692-3571, 1-800-267-3504

Email:

Hours:

Regular Hours: Monday to Friday, 8:30 a.m. to 4:30 p.m.

Member of: conservation ontario