Environment Canada warns Calgary to expect 100 mm of rainfall
Posted Jun 28, 2026 10:57 am.
Last Updated Jun 29, 2026 8:48 am.
Calgarians can expect up to 100 millimetres of rain, Environment and Climate Change Canada said in a warning issued for the city Sunday.
The notice, which is still in effect as of Monday, says the rain will range from 50 to 100 mm and is expected to continue before relaxing in the evening — ending by Tuesday morning. As of Monday morning, 30 mm has fallen in the city.
Meteorologists warn water will likely pool on roads in low-lying areas, and fast-moving currents can sweep vehicles away and damage infrastructure.
“Don’t drive through flooded roadways. Watch for washouts near rivers, creeks and culverts,” the notice reads.
Calgary Mayor Jeromy Farkas said late Sunday that there’s no risk of overland flooding, and high streamflow advisories have been issued for the Bow and Elbow rivers.
He adds flow rates are expected to rise through the middle of the week, and into Canada Day on Wednesday.
Calgary Fire Department information officer Alex Kwan says this increase is expected “well beyond thresholds.”
Pathways near rivers may be affected, so the city is warning Calgarians to keep children and pets away from fast-moving water.
Farkas also said over the weekend that river levels are within normal ranges, but are expected to increase “modestly” early in the week.
“We do not anticipate overbank flooding in communities,” his post reads.
“The scale of this event is currently expected to be similar in size to the event in early June, potentially resulting in wet low-lying areas near the river, some pathway closures at underpasses near the river, and possibly a boating advisory.”
Pathways are currently closed, and no boating is currently permitted, according to information on the city’s website.
He says crews are on hand if needed, but any additional emergency responses are not expected.
According to the city, river flows are being managed by the Bow and Elbow Rivers’ reservoirs.
Meanwhile, the forecast for Calgary calls for thunderstorms both on Sunday and Monday, with highs between 15 C and 17 C.
Winds are expected to gust up to 60 kilometres per hour and drop to 40 later on Monday afternoon.
More information on flooding can be found on the city’s website.
