Weather System Creating the Potential for Localized Flooding
July 27, 2015 – The Water Security Agency is advising the public of a severe weather system with significant rainfall that is expected over the next 48 hours.
Rainfall across most of the southern portion of the province is expected to be near 50 mm in most areas. Within this weather system, thunderstorm activity may result in localized areas receiving higher rainfall intensities and accumulations. This has the potential to create localized flooding within these areas.
Rainfall intensities are expected to be highest along the portion of the southern Saskatchewan-Manitoba Border overnight and are the area of greatest concern.
At this time, rainfall intensities are expected to be lower in the southwest. Lower rainfall intensities and drier topsoil conditions will allow for significant infiltration in the southwest which will limit runoff to creeks and rivers.
The warmer and drier conditions over the past three months helped to reduce soil moisture conditions and create more wetland storage. The current soil conditions are not the same as those last summer when Saskatchewan experienced significant flooding on the east side of the province. Prior to the 2014 event, most basins were fully saturated. Also, accumulations from this event are not expected to be near the 2014 levels.
At this time with the uncertainty in the rainfall forecast, it is too early to predict the response on larger systems such as the Qu’Appelle and Souris Rivers. The Water Security Agency is in communication with Environment Canada meteorologists who will be providing updates as the system develops.
The Water Security Agency will be monitoring the event as it develops and will publish updates as the information becomes available. For more information on stream flows and lakes levels or to contact the regional offices nearest you visit www.wsask.ca.
The Water Security Agency was created to lead implementation of the 25 Year Saskatchewan Water Security Plan. It will improve water management capacity and service to individuals, businesses and communities across Saskatchewan. The agency brings together all of the major responsibilities related to water quality and quantity.
For more information, contact:
Water Security Agency