Understanding current conditions is the starting point, and the most critical part, of any weather forecast.
Hundreds of weather stations, ships, and aircraft across Canada, the US, and the rest of the world report readings of temperature, pressure, wind, moisture and precipitation. These reports are received at the CMC, and used to improve our picture of the current state of the atmosphere. The analyses made available four times daily on this page provide the latest snapshots of the state of the atmosphere over Canada and the Northern Hemisphere.
(Northern Hemispheric coverage)†
|Accumulation||Canada†||Eastern Canada†||Western Canada†|
†All times are represented in Coordinated Universal Time (UTC).
Upper Air Analysis
- 250 hPa: Geopotential height, wind velocity
- 500 hPa: Geopotential height, 1000-500 hPa thickness
- 700 hPa: Geopotential height, temperature, dew point depression
- 850 hPa: Geopotential height, temperature
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