Essex Region Conservation Authority (ERCA) is the recognized authority for watershed information updates. They have developed a series of escalating precautionary public messages to advise residents of potential or imminent flooding conditions.

 Watershed Conditions/Safety Bulletin
 Factors could be dangerous, but flooding is not expected.
 Flood Outlook
 Early notice of flooding potential based on weather forecasts.
 Flood Watch
Potential for flooding within specific watercourses or municipalities. Municipalities, EMS and landowners in flood-prone areas should be prepared.
 Flood Warning
 Flooding is imminent or is occurring in specific watercourses or municipalities.

Flood Watch - July 16, 2021

The Essex Region Conservation Authority advises that due to the predicted heavy rainfall today and overnight to tomorrow morning, a Flood Watch is in effect for the Essex Region. Rainfall is expected to be roughly 25-35mm, with some areas receiving up to 50mm. Rainfall rates could reach up to 10-15mm per hour in the heavier downpours. The existing wet ground conditions from the rainfall received in the last couple of days, in conjunction with the elevated lake levels, increases the risk of accumulation of standing water in low lying areas throughout the Essex Region, especially adjacent to and within floodplain areas of all major waterways and shoreline areas. Areas with poor drainage may be impacted by this rainfall event. The Flood Watch will remain in affect until noon tomorrow July 17, 2021.

People are encouraged to take extra caution to avoid areas where flooding is occurring as well as rivers, streams, and shoreline areas during significant rainfall and wind events. The combination of slippery banks, waves, waves overtopping shoreline structures, and fast moving water can be dangerous. Standing water can also present its own unseen hazards. Children, pets, and livestock should be kept away from flowing or
standing water and shoreline areas.

Watershed Conditions Statement - July 8, 2021 (Updated)

The Essex Region Conservation Authority advises that due to the forecasted rainfall this afternoon and evening, there is a concern for the accumulation of standing water in low lying areas throughout the Essex Region, especially adjacent to and within floodplain areas of all major waterways and shoreline areas. Rainfall is expected be roughly 20 mm with some areas receiving up to 40 mm with localized downpours. This amount and duration of rainfall falls below Flood Watch thresholds; however, due to the combination of existing wet ground conditions, high lake levels and forecasted rainfall, a Watershed Conditions Statement will remain in effect until 10:00 am tomorrow July 9, 2021.

People are encouraged to take extra caution to avoid areas where flooding is occurring as well as rivers, streams, and shoreline areas during significant rainfall and wind events. The combination of slippery banks, waves, waves overtopping shoreline structures, and fast moving water can be dangerous. Standing water can also present its own unseen hazards. Children, pets, and livestock should be kept away from flowing or
standing water and shoreline areas.

Watershed Conditions Statement - July 8, 2021

The Essex Region Conservation Authority advises that due to the forecasted rainfall, there is a concern for the accumulation of standing water in low lying areas throughout the Essex Region, especially adjacent to and within floodplain areas of all major waterways and shoreline areas. Rainfall is expected be roughly 35-40 mm with some areas receiving up to 50 mm with localized downpours. Forecasts are currently suggesting that storms are more likely to affect the southern portion of the County, however, conditions can change rapidly with the quick formation of thunderstorms across the region. This amount and duration of rainfall falls below Flood Watch thresholds; however, due to the combination of high lake levels and forecasted rainfall, a Watershed Conditions Statement will remain in effect until noon on July 8, 2021.

Flood Watch - June 25, 2021

The Essex Region Conservation Authority advises that new forecasts are predicting rainfall today of roughly 40mm with isolated areas having the potential to reach 60mm of rain with multiple thunderstorms. There is a concern for the accumulation of standing water in low lying areas throughout the Essex Region, especially adjacent to and within floodplain areas of all major waterways and shoreline areas.  Forecasts continue to indicate the possibility of reaching up to an additional 20 mm of rainfall tomorrow. The Flood Watch will remain in effect until noon Sunday June 27, 2021.

People are encouraged to take extra caution to avoid areas where flooding is occurring as well as rivers, streams, and shoreline areas during significant rainfall and wind events. The combination of slippery banks, waves, waves overtopping shoreline structures, and fast moving water can be dangerous. Standing water can also present its own unseen hazards. Children, pets, and livestock should be kept away from flowing or
standing water and shoreline areas.

In addition, the Essex Region Conservation Authority advises that, due to the forecasted wind conditions beginning this morning and lasting until noon Sunday, June 27, 2021, a Shoreline Conditions Statement is in effect for the Lake Erie shoreline. Lake levels remain elevated even with levels having dropped over the past few months as a result of lower water supply and seasonal decline. Winds are currently moderate out of the south. Forecasts indicate winds are expected to increase throughout the day until they reach 35 km/hr, with gusts up to 45 km/hr, by this
afternoon. Winds will continue to come out of the south, however, will begin to decrease to 25-30 km/hr by tomorrow and last until mid day Sunday. The combination of elevated lake levels and predicted wind conditions are below ERCA Flood Watch thresholds; however, there remains some risk of flooding and accelerated nearshore erosion along the Lake Erie shoreline including south Pelee Island as a result of the increased wave activity. The forecasted conditions are expected to dissipate by 12:00pm on Sunday June 27, 2021.

Flood Warning - May 28, 2021

The Essex Region Conservation Authority advises that a Flood Warning is in effect with flooding occurring in the following locations:

  • Lake Erie shoreline in the Municipality of Leamington, specifically between Mersea Road 2 and Fox Run Road. This section of roadway is completely inundated and impassable. This area should be avoided.
  • Lake Erie shoreline in the Municipality of Leamington, specifically sections of Marentette Beach Road and East Beach Road north of the Road 1 Dyke. There are sections of roadway under water with some adjacent private lands flooded.
  • Lake Erie shoreline and Cedar Creek area in the Town of Kingsville. The area along Heritage Road (County Road 50) west of Cedar Creek Bridge has some localized ponding along sections of the pavement with the roadway being low-lying combined with wave spray, rainfall, elevated water level in Cedar Creek. Cedar Creek water levels are elevated and there is a high risk of flooding in private lands and low lying sections of roadway between Conservation Blvd. and Ford Road.
  • Pelee Island, specifically North Shore Road and East Shore Road.

Strong northeast winds have caused water levels to rise in the western basin of Lake Erie. The increased water levels coupled with waves overtopping shoreline structures has caused water to begin flooding low lying areas identified above.

Water levels in major tributaries along Lake Erie and the Detroit River (i.e. Canard River) are elevated causing a high risk of flooding on low lying roadways such as South Riverview Drive and Canard Drive.

Areas across the region have also experienced roughly 15-20 mm of rainfall that has exacerbated flooding in some areas. Conditions are expected to worsen throughout today with forecasts indicating strong winds and waves lasting through today and potentially until later Saturday evening.

People should avoid areas where flooding is occurring, especially unnecessary traffic as water flowing over roadways can leave drivers unaware of hazards below the surface of the water (debris, sections of road washouts, edge of pavement location). This Flood Warning will be updated as required and will remain in effect until Sunday, May 30.

The previously issued Flood Watch remains in effect for all other areas not currently experiencing flooding (see below). 

Flood Watch - May 28, 2021

The Essex Region Conservation Authority advises that, due to the predicted wind conditions indicating strong winds out of the east and northeast, a Flood Watch is in effect for the following areas:

  • Lake Erie shoreline including Pelee Island
  • Lake St. Clair shoreline from Windsor to Belle River
  • Detroit River shoreline

Wind speeds are predicted to reach speeds around 40 km/hr in the early hours of Friday morning, with further increases through the day reaching speeds around 50 km/hr and higher by early afternoon. Gusts are forecasted to be anywhere from 50 to 70 km/hr over open water. These conditions may last through the majority of Saturday, May 29, with winds predicted to dissipate by Saturday evening.

With these forecasted conditions, there is a potential for waves to build up over 2 metres in Lake Erie and up to 1.0 metre in Lake St. Clair. Areas subjected to direct wave impact can sustain accelerated erosion and damage to breakwall structures. Any waves overtopping and splashing can cause shoreline areas to flood. A primary area of concern for direct wave attack and potential flooding is the shoreline area between Wheatley Harbour and Point Pelee National Park, in the Municipality. In addition to waves, there is a potential for water levels to increase in the western basin with a strong northeast wind. This may cause water levels to increase substantially up the Detroit River as well. Low lying areas with gravity storm sewer systems may see water backup through roadway catch basins if water levels raise high enough in the western basin.

Watershed Conditions Statement - April 8, 2021

The Essex Region Conservation Authority advises that, due to the potential for rainfall up to 25 mm over an 8 hour period in combination with elevated lake levels, there is a concern for the accumulation of standing water in low lying areas and floodplains, specifically across the western municipalities of Essex County (Amherstburg, Essex, LaSalle, Windsor and Tecumseh). The elevated lake levels have caused major tributaries to hold lake water in the downstream reaches, which can have some affected on local drainage systems. The is the potential for thunderstorms to track across the western portion of the County bringing anywhere between 20 and 30 mm of rainfall. This falls below Flood Watch thresholds; however, due to the combination of high lake levels and rainfall, a Watershed Conditions Statement will remain in effect this evening though Friday.

To check flood warning status, visit: essexregionconservation.ca/flood-status