Weather Glossary



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New Definitions
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Occluded Front A composite of two fronts, formed as a cold front overtakes a warm or quasi-stationary ...
Omega High A warm high aloft which has become displaced and is on the polarward side of ...
Orographic Lifting Same as Upslope Flow; occurs when air is forced to rise and cool due to ...
Oscillation A shift in position of various high and low pressure systems that in climate terms ...
Outflow Boundary A storm-scale or mesoscale boundary separating thunderstorm-cooled air (outflow) from the surrounding air; similar in ...
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City Weather

Toronto
Light Rain 3°C
Halifax
Scattered Snow Showers -1°C
Quebec
Partly Cloudy -2°C
Ottawa
Mostly Cloudy -3°C
Montreal
Areas of Fog -4°C
Winnipeg
Partly Cloudy -2°C
Calgary
Partly Cloudy 5°C
Yellowknife
Mostly Clear N/A
Saskatoon
Cloudy 2°C
Vancouver
Light Rain 7°C

Last Update: 6:00 AM Mar 25 2017