Flood Watch: Grand River watershed
Warm weather and rain raise risk of flooding
Cambridge - The warm temperatures that moved into the watershed earlier this week have melted much of the remaining snow. Flows in water courses across the watershed have increased in response to runoff from snowmelt.
The seven day weather forecast calls for double digit day time high temperatures and overnight temperatures at or above zero degrees to continue for the next seven days. This will melt any remaining snow. A total of 15 to 25 mm of rain is forecast to move into the Grand River watershed this evening and into tomorrow.
Flooding of low lying areas that typically flood can be expected over the next few days. However, major flooding of roads or structures is not anticipated at this time. Whether more serious flooding occurs will depend on the amount of rainfall over the next 48 hours. Conditions are being monitored closely.
The GRCA’s major reservoirs are being used to reduce downstream flooding and are being filled to their spring operating levels. This year, reservoirs are being filled a little earlier than is typical due to the loss of the snow pack and earlier than normal spring conditions.
This message will remain in effect until noon on Friday, March 11, 2016. Updated flood messages will be issued as conditions develop.
The public is reminded to exercise extreme caution around rivers, streams and water bodies. Any remaining ice cover will be severely eroded due to rain and thaw, and riverbanks will be icy and wet. While air temperatures may be well above normal, water temperatures are still just above freezing. Anyone going into the water could fall victim to hypothermia within minutes, losing feeling in arms and legs and then becoming unconscious. Safety information for parents and children is available in the GRCA’s River Safety Rules booklet.