A rainfall warning has been issued for Calgary on Sunday, with Environment Canada predicting up to 100 millimetres of rain. The heavy downpour is expected to begin early Sunday morning and continue through the day, raising concerns about localized flooding and hazardous driving conditions.
Details of the Warning
The warning covers the city of Calgary and surrounding areas. Meteorologists anticipate rainfall rates of 20 to 30 mm per hour at times, which could overwhelm drainage systems. Residents are advised to avoid low-lying areas and to secure loose objects that could be swept away by runoff.
Environment Canada warns that heavy rain can cause flash floods and water pooling on roads. Drivers should reduce speed and watch for standing water. The agency also reminds the public never to drive through flooded streets, as water depth can be deceptive.
Potential Impacts
The predicted 100 mm is close to the average monthly rainfall for June in Calgary, which is about 120 mm. This single event could bring nearly a month's worth of rain in one day. The city's infrastructure, including storm drains and rivers, may be strained.
According to a city spokesperson, crews are on standby to respond to any flooding reports. Sandbags are available at several fire stations for residents who need them. The city also advises checking sump pumps and clearing eavestroughs to prevent basement flooding.
Storms and Flooding in Recent Days
This warning follows a series of storms that have affected southern Alberta. Earlier in the week, a severe thunderstorm brought hail and strong winds to parts of the region. The ground is already saturated in some areas, increasing the risk of runoff and flash flooding.
Residents are encouraged to monitor local weather updates and to sign up for emergency alerts. The rainfall is expected to taper off by Sunday evening, but showers may linger into Monday.
