Tuesday, August 03, 2010

Tropical humidity

Lightning continues to light the night sky in Montreal at this hour. Radar is showing more thunderstorms moving across eastern Ontario and into the western edge of the metro region. A severe thunderstorm watch remains in effect and should be allowed to expire shortly as the last of the storms begin to move southeast away from the region and dissipate. Earlier today nearly 30mm of rain fell in a very short period of time during rush hour across the metro region, but no flooding was reported. Environment Canada has yet to confirm if the funnel cloud north of the city in St. Eustache actually touched ground. It was observed around 4pm.

Currently we have a thunderstorm in Montreal. When I stepped outdoors a few minutes ago, it reminded me of the Outer Banks of North Carolina. We are sitting at a warm 22C with a dew point of 21C and a dripping wet relative humidity of 94%. This is producing a 10pm heat index of 31C or 88F. More showers and storms with muggy hot weather can be expected on Wednesday.

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