The Long Point Region Conservation Authority monitors precipitation (rain and snow), creek flows, weather forecasts and computer models to determine the potential for flooding on a daily basis. LPRCA staff provides this service to the watershed 24 hours a day, 7 days a week and 365 days a year.
During the winter, snowpack is measured at stations located throughout the watershed to determine the snow water equivalent. Snowpack is the accumulated snow cover on the ground. Snow water equivalent is a measurement of the amount of water contained in the snowpack. It can be considered as the depth of water that would theoretically result if the whole snow pack instantaneously melted.
Snowmelt is a major factor contributing to spring freshet flooding. The quantity of snow is usually expressed in terms of its water equivalent in millimetres (mm). This information is used in flood forecasting and flood risk assessments.
Water Survey of Canada maintains streamflow recording stations located throughout the watershed. These stream gauges are part of a monitoring network, managed by the Ontario Ministry of Natural Resources and Forestry and Environment and Climate Change Canada, on behalf of other interested parties, including conservation authorities. The information from the stream gauge recorders allows staff to monitor the progress of runoff events throughout the watershed to assist with both its flood forecasting and warning and low water response programs.
Water Survey of Canada Water Level Stream Gauges (near real time data):
- Big Otter Creek above Otterville
- Big Otter Creek at Tillsonburg
- Big Otter Creek near Calton
- Big Creek near Kelvin
- Big Creek near Walsingham
- Venison Creek near Walsingham
- Young Creek near Vittoria
- Lynn River at Simcoe
- Nanticoke Creek at Nanticoke
Water Survey of Canada Water Level Stream Gauges (historic levels):
Lake Erie Water Levels: