| TAF amendment response time results for August 2012 | ||||||||
| Canadian Meteorological Aviation Centre/East (Montreal) | ||||||||
| Station | Number of observations not covered by current TAF | Number responded to by an amended TAF | Number responded to by next regular TAF | Number where weather changed back to match TAF | Number where weather and TAF remained inconsistent | Average response time in minutes | Percentage of TAF responses within 20 minutes | Number of proactive amendments |
| Baie Comeau | 41 | 26 | 1 | 14 | 0 | 16 | 70% | 24 |
| Bathurst | 24 | 15 | 2 | 7 | 0 | 20 | 71% | 24 |
| Big Trout Lake | 25 | 18 | 1 | 6 | 0 | 11 | 95% | 14 |
| Blanc Sablon | 29 | 25 | 0 | 4 | 0 | 20 | 72% | 23 |
| Buttonville | 15 | 10 | 2 | 3 | 0 | 22 | 67% | 19 |
| Cartwright | 26 | 21 | 0 | 5 | 0 | 14 | 76% | 19 |
| Chapleau | 11 | 9 | 0 | 2 | 0 | 12 | 100% | 6 |
| Charlottetown | 27 | 17 | 3 | 7 | 0 | 35 | 80% | 15 |
| Chibougamau-Chapais | 15 | 8 | 1 | 6 | 0 | 9 | 89% | 13 |
| Churchill Falls | 48 | 15 | 3 | 30 | 0 | 10 | 72% | 8 |
| Deer Lake | 32 | 24 | 1 | 7 | 0 | 19 | 60% | 13 |
| Dorval | 6 | 3 | 1 | 2 | 0 | 12 | 100% | 16 |
| Dryden | 25 | 12 | 1 | 12 | 0 | 13 | 62% | 18 |
| Earlton | 12 | 5 | 0 | 7 | 0 | 17 | 100% | 12 |
| Fredericton | 37 | 18 | 3 | 16 | 0 | 13 | 86% | 22 |
| Gander | 47 | 41 | 2 | 4 | 0 | 18 | 67% | 16 |
| Gaspé | 20 | 17 | 2 | 1 | 0 | 16 | 74% | 24 |
| Gatineau | 7 | 6 | 1 | 0 | 0 | 11 | 86% | 19 |
| Geraldton | 20 | 17 | 1 | 2 | 0 | 16 | 67% | 20 |
| Gore Bay | 4 | 1 | 0 | 3 | 0 | 5 | 100% | 3 |
| Halifax | 57 | 46 | 8 | 3 | 0 | 14 | 80% | 22 |
| Hamilton | 14 | 11 | 1 | 2 | 0 | 17 | 75% | 25 |
| Havre St Pierre | 61 | 37 | 3 | 21 | 0 | 14 | 68% | 21 |
| Îles de la Madeleine | 18 | 15 | 0 | 3 | 0 | 16 | 67% | 7 |
| Inukjuak | 57 | 36 | 0 | 20 | 1 | 16 | 75% | 18 |
| Ivujivik | 16 | 15 | 0 | 1 | 0 | 20 | 67% | 8 |
| Kapuskasing | 21 | 18 | 0 | 3 | 0 | 16 | 72% | 28 |
| Kenora | 12 | 8 | 1 | 3 | 0 | 9 | 89% | 20 |
| Kingston | 8 | 4 | 1 | 3 | 0 | 12 | 100% | 11 |
| Kuujjuaq | 21 | 20 | 1 | 0 | 0 | 13 | 81% | 8 |
| Kuujjuarapik | 51 | 38 | 6 | 7 | 0 | 18 | 68% | 21 |
| La Grande IV | 18 | 10 | 2 | 6 | 0 | 20 | 33% | 8 |
| La Grande Rivière | 45 | 38 | 4 | 3 | 0 | 19 | 69% | 19 |
| London | 21 | 11 | 2 | 8 | 0 | 25 | 77% | 22 |
| Marathon | 9 | 9 | 0 | 0 | 0 | 15 | 78% | 4 |
| Mary's Harbour | 35 | 17 | 1 | 17 | 0 | 11 | 78% | 18 |
| Mirabel | 15 | 11 | 2 | 2 | 0 | 23 | 77% | 22 |
| Moncton | 22 | 17 | 1 | 4 | 0 | 11 | 94% | 19 |
| Mont-Joli | 26 | 21 | 3 | 2 | 0 | 22 | 42% | 17 |
| Moosonee | 31 | 11 | 0 | 20 | 0 | 10 | 100% | 18 |
| Muskoka | 20 | 8 | 0 | 12 | 0 | 9 | 75% | 10 |
| Nain | 16 | 14 | 1 | 1 | 0 | 16 | 60% | 8 |
| Natashquan | 25 | 13 | 0 | 12 | 0 | 11 | 92% | 13 |
| North Bay | 41 | 33 | 2 | 6 | 0 | 14 | 74% | 18 |
| Ottawa | 16 | 8 | 2 | 6 | 0 | 18 | 70% | 20 |
| Peterborough | 22 | 10 | 0 | 12 | 0 | 12 | 80% | 11 |
| Pickle Lake | 12 | 11 | 1 | 0 | 0 | 15 | 92% | 12 |
| Puvirnituq | 5 | 5 | 0 | 0 | 0 | 16 | 80% | 3 |
| Quaqtaq | 17 | 15 | 0 | 2 | 0 | 14 | 87% | 13 |
| Quebec City | 28 | 22 | 3 | 3 | 0 | 13 | 68% | 22 |
| Red Lake | 9 | 7 | 0 | 2 | 0 | 21 | 57% | 12 |
| Roberval | 8 | 5 | 0 | 3 | 0 | 13 | 100% | 12 |
| Rouyn-Noranda | 16 | 11 | 2 | 3 | 0 | 20 | 85% | 27 |
| Sable Island | 37 | 20 | 1 | 16 | 0 | 15 | 76% | 19 |
| Saint John | 58 | 38 | 5 | 13 | 2 | 21 | 70% | 22 |
| Sarnia | 13 | 3 | 0 | 10 | 0 | 5 | 100% | 16 |
| Sault Ste Marie | 26 | 14 | 2 | 10 | 0 | 24 | 75% | 22 |
| Schefferville | 21 | 5 | 0 | 16 | 0 | 17 | 40% | 2 |
| Sept-Îles | 30 | 27 | 2 | 1 | 0 | 15 | 83% | 25 |
| Sherbrooke | 5 | 3 | 0 | 2 | 0 | 4 | 100% | 14 |
| Sioux Lookout | 15 | 11 | 0 | 4 | 0 | 15 | 73% | 26 |
| St Anthony | 46 | 21 | 3 | 22 | 0 | 15 | 62% | 16 |
| St Catharines | 6 | 5 | 0 | 1 | 0 | 7 | 100% | 6 |
| St Hubert | 22 | 8 | 2 | 12 | 0 | 16 | 30% | 25 |
| St John's | 38 | 33 | 1 | 4 | 0 | 17 | 53% | 33 |
| Stephenville | 19 | 17 | 1 | 1 | 0 | 16 | 67% | 16 |
| Sudbury | 29 | 22 | 0 | 7 | 0 | 14 | 77% | 19 |
| Sydney | 45 | 32 | 3 | 10 | 0 | 16 | 71% | 20 |
| Tasiujaq | 1 | 1 | 0 | 0 | 0 | 3 | 100% | 5 |
| Thunder Bay | 7 | 6 | 0 | 1 | 0 | 8 | 100% | 18 |
| Timmins | 28 | 21 | 1 | 6 | 0 | 12 | 91% | 26 |
| Toronto City Centre | 20 | 3 | 0 | 17 | 0 | 11 | 100% | 20 |
| Toronto LBPI | 9 | 6 | 1 | 2 | 0 | 21 | 57% | 20 |
| Val-d'Or | 37 | 20 | 2 | 15 | 0 | 19 | 64% | 27 |
| Wabush | 17 | 15 | 0 | 2 | 0 | 17 | 80% | 12 |
| Waskaganish | 2 | 2 | 0 | 0 | 0 | 5 | 100% | 3 |
| Waterloo/Wellington | 35 | 14 | 1 | 20 | 0 | 13 | 73% | 17 |
| Wawa | 8 | 6 | 0 | 2 | 0 | 10 | 100% | 8 |
| Wiarton | 5 | 5 | 0 | 0 | 0 | 26 | 20% | 6 |
| Windsor | 11 | 8 | 0 | 3 | 0 | 15 | 100% | 16 |
| Yarmouth | 82 | 59 | 7 | 16 | 0 | 20 | 59% | 34 |
| Canadian Meteorological Aviation Centre/West (Edmonton) | ||||||||
| Station | Number of observations not covered by current TAF | Number responded to by an amended TAF | Number responded to by next regular TAF | Number where weather changed back to match TAF | Number where weather and TAF remained inconsistent | Average response time in minutes | Percentage of TAF responses within 20 minutes | Number of proactive amendments |
| Abbotsford | 5 | 5 | 0 | 0 | 0 | 8 | 100% | 8 |
| Arctic Bay | 5 | 4 | 0 | 1 | 0 | 11 | 100% | 8 |
| Arviat | 12 | 9 | 1 | 2 | 0 | 24 | 90% | 5 |
| Baker Lake | 10 | 9 | 0 | 1 | 0 | 11 | 78% | 4 |
| Bella Bella | 42 | 16 | 1 | 25 | 0 | 9 | 76% | 14 |
| Brandon | 10 | 9 | 0 | 1 | 0 | 6 | 100% | 19 |
| Buffalo Narrows | 10 | 6 | 1 | 2 | 1 | 18 | 86% | 12 |
| Burwash | 13 | 8 | 1 | 4 | 0 | 10 | 89% | 10 |
| Calgary Intl | 8 | 4 | 2 | 2 | 0 | 7 | 100% | 33 |
| Cambridge Bay | 32 | 32 | 0 | 0 | 0 | 8 | 91% | 18 |
| Campbell River | 3 | 2 | 0 | 1 | 0 | 12 | 100% | 0 |
| Cape Dorset | 34 | 19 | 6 | 9 | 0 | 18 | 80% | 16 |
| Castlegar | 1 | 1 | 0 | 0 | 0 | 7 | 100% | 2 |
| Churchill | 21 | 16 | 1 | 3 | 1 | 14 | 100% | 19 |
| Clyde River | 36 | 25 | 1 | 10 | 0 | 14 | 81% | 15 |
| Coral Harbour | 22 | 19 | 2 | 1 | 0 | 9 | 95% | 6 |
| Cranbrook | 1 | 1 | 0 | 0 | 0 | 5 | 100% | 9 |
| Deline | 1 | 0 | 1 | 0 | 0 | 4 | 100% | 1 |
| Dauphin | 40 | 8 | 2 | 21 | 9 | 25 | 60% | 15 |
| Dawson City | 29 | 7 | 2 | 9 | 11 | 65 | 67% | 2 |
| Dawson Creek | 9 | 2 | 0 | 7 | 0 | 13 | 100% | 7 |
| Dease Lake | 3 | 3 | 0 | 0 | 0 | 9 | 100% | 0 |
| Edmonton Intl | 12 | 4 | 1 | 7 | 0 | 33 | 60% | 25 |
| Edmonton Muni | 15 | 5 | 1 | 9 | 0 | 12 | 100% | 29 |
| Estevan | 3 | 3 | 0 | 0 | 0 | 13 | 67% | 5 |
| Eureka | 0 | 0 | 0 | 0 | 0 | 0 | 0% | 0 |
| Faro | 1 | 0 | 0 | 1 | 0 | 59 | 0% | 2 |
| Fort Chipewyan | 13 | 7 | 0 | 6 | 0 | 6 | 86% | 8 |
| Fort Good Hope | 0 | 0 | 0 | 0 | 0 | 0 | 0% | 0 |
| Fort McPherson | 1 | 1 | 0 | 0 | 0 | 20 | 0% | 0 |
| Fort McMurray | 50 | 13 | 0 | 37 | 0 | 11 | 77% | 14 |
| Fort Nelson | 13 | 4 | 2 | 3 | 4 | 36 | 50% | 12 |
| Fort Simpson | 14 | 11 | 1 | 2 | 0 | 15 | 92% | 7 |
| Fort Smith | 21 | 13 | 2 | 6 | 0 | 22 | 67% | 22 |
| Fort St John | 3 | 3 | 0 | 0 | 0 | 9 | 67% | 6 |
| Gillam | 25 | 17 | 2 | 6 | 0 | 16 | 84% | 16 |
| Gjoa Haven | 40 | 23 | 4 | 12 | 1 | 14 | 89% | 15 |
| Grande Prairie | 6 | 5 | 0 | 1 | 0 | 20 | 100% | 8 |
| Hall Beach | 26 | 20 | 1 | 5 | 0 | 11 | 86% | 21 |
| Hay River | 13 | 7 | 1 | 4 | 1 | 27 | 88% | 9 |
| High Level | 9 | 6 | 1 | 2 | 0 | 10 | 86% | 12 |
| Holman | 1 | 0 | 0 | 1 | 0 | 21 | 0% | 1 |
| Igloolik | 12 | 11 | 0 | 1 | 0 | 10 | 91% | 7 |
| Inuvik | 12 | 11 | 0 | 1 | 0 | 13 | 91% | 9 |
| Iqaluit | 37 | 37 | 0 | 0 | 0 | 10 | 92% | 21 |
| Island Lake | 19 | 16 | 2 | 1 | 0 | 6 | 94% | 13 |
| Kamloops | 1 | 1 | 0 | 0 | 0 | 7 | 100% | 12 |
| Kelowna | 13 | 1 | 0 | 12 | 0 | 18 | 100% | 9 |
| Key Lake | 15 | 11 | 0 | 4 | 0 | 6 | 100% | 9 |
| Kugaaruk | 0 | 0 | 0 | 0 | 0 | 0 | 0% | 2 |
| Kugluktuk | 22 | 17 | 2 | 3 | 0 | 14 | 68% | 16 |
| La Ronge | 5 | 5 | 0 | 0 | 0 | 7 | 100% | 18 |
| Lethbridge | 1 | 1 | 0 | 0 | 0 | 29 | 0% | 21 |
| Lloydminster | 20 | 13 | 2 | 5 | 0 | 18 | 80% | 17 |
| Lutselk'e | 1 | 1 | 0 | 0 | 0 | 5 | 100% | 0 |
| Lynn Lake | 30 | 21 | 0 | 9 | 0 | 9 | 100% | 26 |
| Mackenzie | 2 | 0 | 0 | 2 | 0 | 8 | 0% | 9 |
| Masset | 11 | 9 | 1 | 1 | 0 | 14 | 90% | 4 |
| Mayo | 9 | 4 | 3 | 2 | 0 | 51 | 43% | 3 |
| Medicine Hat | 6 | 4 | 0 | 2 | 0 | 15 | 100% | 12 |
| Nanaimo | 2 | 2 | 0 | 0 | 0 | 5 | 100% | 2 |
| Norman Wells | 10 | 6 | 3 | 1 | 0 | 25 | 67% | 11 |
| North Battleford | 27 | 12 | 0 | 15 | 0 | 10 | 83% | 19 |
| Norway House | 25 | 14 | 1 | 10 | 0 | 7 | 93% | 15 |
| Old Crow | 5 | 5 | 0 | 0 | 0 | 8 | 100% | 6 |
| Pangnirtung | 11 | 11 | 0 | 0 | 0 | 9 | 82% | 9 |
| Paulatuk | 6 | 5 | 0 | 0 | 1 | 17 | 80% | 8 |
| Peace River | 6 | 4 | 1 | 1 | 0 | 23 | 80% | 7 |
| Penticton | 2 | 1 | 0 | 1 | 0 | 29 | 100% | 6 |
| Pond Inlet | 37 | 22 | 3 | 12 | 0 | 13 | 80% | 13 |
| Port Hardy | 30 | 23 | 2 | 5 | 0 | 12 | 80% | 25 |
| Prince Albert | 21 | 14 | 1 | 6 | 0 | 15 | 100% | 18 |
| Prince George | 7 | 3 | 0 | 4 | 0 | 14 | 67% | 18 |
| Prince Rupert | 48 | 25 | 2 | 21 | 0 | 12 | 85% | 21 |
| Qikiqtarjuaq | 39 | 25 | 2 | 9 | 3 | 14 | 78% | 10 |
| Quesnel | 18 | 9 | 0 | 9 | 0 | 11 | 78% | 15 |
| Rae Lake | 3 | 3 | 0 | 0 | 0 | 8 | 100% | 4 |
| Rankin Inlet | 4 | 2 | 2 | 0 | 0 | 5 | 100% | 7 |
| Red Deer | 17 | 10 | 1 | 6 | 0 | 23 | 82% | 29 |
| Regina | 10 | 8 | 0 | 2 | 0 | 14 | 88% | 16 |
| Repulse Bay | 3 | 2 | 0 | 1 | 0 | 5 | 100% | 3 |
| Resolute | 46 | 38 | 4 | 4 | 0 | 11 | 83% | 20 |
| Sachs Harbour | 15 | 12 | 0 | 3 | 0 | 29 | 83% | 4 |
| Sandspit | 24 | 15 | 1 | 8 | 0 | 16 | 62% | 22 |
| Saskatoon | 3 | 3 | 0 | 0 | 0 | 5 | 100% | 16 |
| Slave Lake | 6 | 2 | 0 | 4 | 0 | 15 | 50% | 10 |
| Smithers | 10 | 4 | 0 | 6 | 0 | 34 | 100% | 5 |
| Springbank | 9 | 8 | 1 | 0 | 0 | 9 | 89% | 13 |
| Stony Rapids | 20 | 7 | 1 | 12 | 0 | 8 | 75% | 29 |
| Swift Current | 11 | 5 | 0 | 6 | 0 | 6 | 100% | 11 |
| Taloyoak | 14 | 12 | 2 | 0 | 0 | 7 | 93% | 5 |
| Terrace | 7 | 6 | 1 | 0 | 0 | 11 | 100% | 11 |
| Teslin | 4 | 2 | 1 | 1 | 0 | 19 | 100% | 7 |
| The Pas | 12 | 10 | 0 | 2 | 0 | 10 | 90% | 14 |
| Thompson | 21 | 15 | 4 | 2 | 0 | 12 | 95% | 20 |
| Tofino | 9 | 6 | 1 | 2 | 0 | 5 | 100% | 14 |
| Tuktoyaktuk | 11 | 9 | 1 | 1 | 0 | 15 | 90% | 8 |
| Vancouver | 3 | 3 | 0 | 0 | 0 | 6 | 100% | 7 |
| Victoria | 1 | 0 | 1 | 0 | 0 | 9 | 100% | 2 |
| Victoria Harbour | 2 | 2 | 0 | 0 | 0 | 4 | 100% | 2 |
| Watson Lake | 2 | 1 | 1 | 0 | 0 | 16 | 50% | 2 |
| Whitecourt | 5 | 4 | 0 | 1 | 0 | 9 | 75% | 5 |
| Whitehorse | 15 | 10 | 0 | 2 | 3 | 19 | 70% | 6 |
| Williams Lake | 6 | 2 | 2 | 2 | 0 | 17 | 75% | 20 |
| Winnipeg | 5 | 5 | 0 | 0 | 0 | 8 | 80% | 18 |
| Yellowknife | 16 | 11 | 2 | 3 | 0 | 19 | 77% | 12 |
| Yorkton | 6 | 3 | 0 | 3 | 0 | 11 | 100% | 8 |