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Notices:

A new set of IDF curves was produced on February 09, 2012 and posted on March 09, 2012. Please read the Whats_New_EC_IDF.pdf file for a list of all of the changes.


OTTAWA MACDONALD-CARTIER INT’L A, HAMILTON A, DEER LAKE A, GANDER INT'L A, ST.JOHN'S A, SASKATOON DIEFENBAKER INT'L A, LONDON INT'L A, SAULT STE. MARIE A, EDMONTON INT'L A, YARMOUTH A, THUNDER BAY A, CHURCHILL A and SMITHERS A weather reporting stations have switched over to new NAV CANADA sensors and reporting tools. Due to some unanticipated data processing issues related to the new data flow, the display of daily data from these stations is not available on our website at present. However, hourly data is now being displayed for the new stations: OTTAWA INT'L, HAMILTON, DEER LAKEGANDER INT'L, ST. JOHN'S INT'L, SASKATOON DIEFENBAKER INT'L, LONDONSAULT STE MARIE, EDMONTON, YARMOUTH, THUNDER BAY, CHURCHILL and SMITHERS.  For more information, please click here and expand the message. Thank you for your patience while we work to fix these current issues.


The Notice Inventory contains a record of all past and current Notices.

The "Weather Winners" Highlights

The Final Top Medal Standings - The cities which placed first most often in all the weather categories. Surprisingly, Yellowknife is the runaway winner here - placing first in 12 weather categories.

Yellowknife - the Overall Weather Champion

Of the 72 weather categories, about 30% were based on year-round weather, and the rest were seasonal --about 25% winter conditions, 20% summer conditions, and 20% other seasons. In true Olympics fashion, of the 100 cities competing, there was one that could lay claim to the most firsts -- Yellowknife! This city placed first in 12 weather categories - you could say it won 12 gold medals out of a possible 72. St. John's NL was second and Thompson MB placed third.

City Gold Silver Bronze Total
Yellowknife NT 12 2 2 16
St. John's NL 6 2 4 12
Thompson MB 1 10 1 12
Gander NL 4 5 1 10
Prince Rupert BC 9 0 0 9
Windsor ON 7 0 1 8
Kamloops BC 2 4 2 8
Chilliwack BC 2 2 4 8
Medicine Hat AB 3 3 1 7
Whitehorse YT 3 1 3 7
Victoria BC 2 2 3 7
Sept-Îles QC 0 3 4 7


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