Yellow Warning - Severe Thunderstorm

At 4:09 p.m. EDT, Environment Canada meteorologists are tracking a cluster of severe thunderstorms capable of producing strong wind gusts, up to quarter size hail and very heavy rain.

Thunderstorm Location: From areas west of Ottawa, south of Ottawa and just east of Clarence-Rockland.

Motion: Moving slowly eastward to southeastward

Hazards: Wind: damaging (90 - 110 km/h) Hail: up to toonie size (up to 3 cm) Rain: 50-100 mm locally

Discussion: Very heavy rain reported Ottawa city and southward with 66 millimeters record in the last 2 hours at the Ottawa International Airport and there are reports of ponding on roads.

Locations in the Path: Barrhaven, Mooneys Bay Beach, Ottawa, Manotick, Bowesville, Beaconwood, South Gloucester, Enniskerry, Blackburn Hamlet, Greely, Metcalfe, Navan, Kenmore, Russell, Vars, Marionville, Sarsfield, Embrun, Limoges, Hammond, Clarence Creek, Clarence-Rockland, Bourget, Crysler, Casselman

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Some travel delays are likely. Driving conditions will likely be difficult. Local utility outages are likely. Heavy rain may cause flash flooding and significant reductions to visibility. Fast-moving and rapidly rising water can sweep vehicles away and damage infrastructure. There is a risk of injury.