Watershed Conditions Statements

April 29, 2019 - Unlike the Ottawa River Watershed which is currently experiencing historic high water conditions, the water levels and flows in the Rideau Valley Watershed are declining and approaching seasonal levels in all waterways except for Bobs Lake and Christie Lake. The current forecast indicates between 35 mm and 50 mm of rain could fall later this week.  This rainfall will have limited impact within the watershed except for Bobs Lake and Christie Lake where levels will likely increase.  Parks Canada staff are closely monitoring the water levels in these lakes, and operations at the Bolingbroke Dam will…
April 27, 2019 — Rideau Valley Conservation Authority (RVCA), in conjunction with the Mississippi Valley Conservation Authority (MVCA) and South Nation Conservation (SNC) is maintaining the FLOOD WARNING issued on April 19, 2019 for the areas under our jurisdiction along the Ottawa River. The most recent model outputs from the Ottawa River Regulation Committee (ORRC) indicate that the previous estimates for peak levels remain unchanged at this time. All flood-prone areas along the Ottawa River from Lac Coulonge down to the Montreal Archipelago are at risk. Peak water levels across many areas of the Ottawa River will exceed those experienced in…
April 25, 2019 — Rideau Valley Conservation Authority (RVCA), in conjunction with the Mississippi Valley Conservation Authority (MVCA) and South Nation Conservation (SNC) is maintaining the FLOOD WARNING issued on April 19, 2019 for the areas under our jurisdiction along the Ottawa River. Significant rainfall has fallen over the Ottawa River basin since Thursday, April 18, 2019. There is additional rainfall amounts of 25 to 50 mm forecast over the next 24 to 36 hours. All flood-prone areas along the Ottawa River from Lac Coulonge down to the Montreal Archipelago are at risk. Peak water levels across many areas of the…
April 23, 2019 — The Rideau Valley Conservation Authority (RVCA), in conjunction with Mississippi Valley Conservation Authority (MVCA) and South Nation Conservation Authority (SNC) is maintaining our FLOOD WARNING issued on April 19, 2019 for the areas under our jurisdiction along the Ottawa River. Significant rainfall has fallen over the Ottawa River basin since Thursday, April 18, 2019.  Warmer than forecasted temperatures were received Sunday and Monday. Additional rainfall of 15 to 50 mm is anticipated today and tomorrow in northern and central areas of the Ottawa River basin. Saturated soils, warm temperatures and precipitation received continues to increase snowmelt in the Ottawa…
April 23, 2019 – Rainfall amounts close to 50 mm fell over much of the Rideau Valley Watershed between last Thursday through Saturday.  This rain resulted in increased water levels and flows across the watershed over the Easter weekend.  Conditions have now stabilized and water levels and flows are declining in all areas.  The current forecast is calling for 10 to 20 mm of rain starting this evening and into Wednesday.  The forecasted rain is not expected to significantly increase water levels or flows. At this time, a FLOOD WATCH is being issued for properties around Bob’s Lake and Christie…
APRIL 21, 2019 OTTAWA RIVER FROM ARNPRIOR TO L'ORIGINAL — The Rideau Valley Conservation Authority (RVCA), in conjunction with the Mississippi Valley Conservation Authority (MVCA) and South Nation Conservation (SNC) is maintaining our FLOOD WARNING issued on April 19, 2019 for the areas under our jurisdiction along the Ottawa River. The latest model run for the Ottawa River indicates that some areas of the Ottawa River are expected to peak today while others will be closer to the end of the week. There is additional rain expected over the northern portion of the watershed that could impact levels and flows later in the…
APRIL 19, 2019 OTTAWA RIVER FROM ARNPRIOR TO L'ORIGINAL — The Rideau Valley Conservation Authority (RVCA), in conjunction with the Mississippi Valley Conservation Authority (MVCA) and South Nation Conservation Authorities (SNC) is issuing a FLOOD WARNING for the areas under our jurisdiction along the Ottawa River.   Significant rainfall (20 to 40 mm) has fallen over the Ottawa River basin since Thursday and an additional 20 to 35 mm of rain is expected by Saturday evening.  The current snowpack throughout much of the Ottawa River basin remains at twice its normal depth for this time of the year. Soils are saturated and warm…
APRIL 18, 2019 OTTAWA RIVER FROM ARNPRIOR TO HAWKESBURY — Rideau Valley Conservation Authority (RVCA) in conjunction with the Mississippi Valley (MVCA) and South Nation Conservation Authorities (SNC) is issuing an update FLOOD WATCH for the areas under our jurisdiction along the Ottawa River.   The Ottawa River Regulating Committee warns that levels and flows on the Ottawa River from Lac Coulonge down to the Montreal region are expected to rise extremely rapidly starting this Friday due to forecast rainfall and snowmelt runoff. Major flood levels are expected to be exceeded over the weekend. Later on, flows and levels similar…
The current forecast is calling for rainfall amounts of 50 to 65 mm, with possibly more, from Thursday to Saturday across the Rideau Valley Watershed which will cause water levels and flows to increase above current conditions throughout the watershed.  Flood conditions are expected start on Friday or Saturday in many areas depending on where the rainfall occurs and total amounts received.  Some specific areas of concern are highlighted below. A FLOOD WARNING is being issued for the following areas: Properties around Bob’s Lake, Christie Lake and Tay River in the upper Rideau Valley Watershed. In these areas, the water…
APRIL 17, 2019: OTTAWA RIVER FROM ARNPRIOR TO HAWKESBURY — Rideau Valley Conservation Authority (RVCA) in conjunction with the Mississippi Valley Conservation Authority (MVCA), South Nation Conservation Authorities (SNC) and Ministry of Natural Resources & Forestry (MNRF) Kemptville District, cautions residents along the Ottawa River that water levels are expected to increase significantly over the weekend and into next week. Levels are not expected to reach those observed at the height of the flood in 2017 at this time. The Ottawa River Regulation Planning Board has stated, “With significant rainfall forecasted later this week, levels will exceed minor flood levels…
April 15, 2019 – The heavy rainfall on Sunday and Monday, with amounts up to 40 mm, is causing the water levels to increase in all waterways across the Rideau Valley Watershed.  The areas most affected include: Properties around Bob’s Lake, Christie Lake, Tay River and Wolfe Lake in the upper Rideau Valley Watershed. In these areas, the water levels are approaching flood levels.  Parks Canada staff are closely monitoring the water levels in Bobs Lake and Christie Lake, and operations at the Bolingbroke Dam will take place as required, to balance the levels in Bobs Lake and Christie Lake. …
April 11, 2019 – The current weather forecast is calling for up to 30 mm of rain between Friday and Monday, and then more rain later next week.  This anticipated rain, plus meltwater from the remaining snow pack, will increase the water levels in Bob’s Lake, Christie Lake, Tay River and Wolfe Lake.  The water levels in the three lakes and the Tay River are currently above average and increasing because of snowmelt runoff.  Waterfront property owners in these areas should be prepared for possible flooding in the upcoming days.  Parks Canada staff are closely monitoring the water levels in…
April 8,2019 – With below seasonal temperature and no significant precipitation over the past several days, water levels and flows continue to decline slowly across most areas of the Rideau Valley Watershed.  The water level/flow decline is expected to continue this week based on the current weather forecast of only single digit high temperatures and the possibility of rain on Friday.  At this time most of the snow in our watershed has already melted but some snow/ice does remain near trees or shaded areas.  Contrary to the above, water levels and flows in Bob’s Lake and Christie Lake, located in…
April 3, 2019 -- With limited precipitation and below seasonal temperatures so far this week, water levels and flows have somewhat stabilized across the Rideau Valley Watershed since last weekend.  The flood warning issued over the weekend is now over for the areas listed below; however, a flood watch is still in effect for these areas.   With snow still on the ground in some areas, combined with forecasted warmer temperatures and precipitation later this week, increased water levels and flows in all waterways in the Rideau Valley Watershed are still expected in the days to come. Areas currently under a…
March 31, 2019 – Significant precipitation this weekend combined with runoff from melting snow has increased water levels and flows in all waterways in the Rideau Valley Watershed.  Although no significant precipitation is expected during the next few days, water levels and flows will likely continue to stay high in most areas due to on-going runoff from melting snow. The areas that are currently experiencing flooding conditions, or will be very soon, include: The smaller creeks and streams in the lower Rideau Valley Watershed, including the low-lying roads and waterfront properties adjacent to the Jock River (near Richmond) and Stevens Creek…
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Contact Us

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

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

Email:
info@rvca.ca

Hours:

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

Member of: conservation ontario