| TAF Amendment Response Time | ||||||||
| Scenariot: NC_CRITERIA Month: April Year: 2017 Target: ≥ 90% | ||||||||
| 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 |
| Attawapiskat | 17 | 11 | 0 | 4 | 2 | 11 | 87% | 8 |
| Baie Comeau | 47 | 31 | 3 | 13 | 0 | 12 | 89% | 13 |
| Bathurst | 30 | 26 | 0 | 4 | 0 | 14 | 87% | 25 |
| Big Trout Lake | 37 | 18 | 3 | 16 | 0 | 14 | 78% | 14 |
| Blanc Sablon | 32 | 30 | 2 | 0 | 0 | 17 | 75% | 17 |
| Buttonville | 31 | 22 | 2 | 6 | 1 | 22 | 67% | 25 |
| Cartwright | 24 | 22 | 1 | 1 | 0 | 19 | 75% | 6 |
| Chapleau | 9 | 5 | 1 | 3 | 0 | 22 | 78% | 6 |
| Charlottetown | 24 | 14 | 2 | 5 | 3 | 16 | 81% | 11 |
| Chibougamau-Chapais | 20 | 16 | 0 | 4 | 0 | 11 | 85% | 8 |
| Churchill Falls | 49 | 18 | 3 | 27 | 1 | 15 | 81% | 10 |
| Deer Lake | 23 | 19 | 0 | 4 | 0 | 21 | 83% | 9 |
| Dorval | 14 | 11 | 2 | 1 | 0 | 14 | 86% | 14 |
| Dryden | 23 | 14 | 1 | 8 | 0 | 12 | 78% | 14 |
| Earlton | 9 | 8 | 0 | 1 | 0 | 13 | 89% | 6 |
| Fort Severn | 20 | 13 | 0 | 7 | 0 | 11 | 95% | 7 |
| Fredericton | 63 | 27 | 0 | 34 | 2 | 14 | 84% | 22 |
| Gander | 52 | 37 | 6 | 7 | 2 | 15 | 84% | 24 |
| Gaspé | 36 | 33 | 1 | 2 | 0 | 17 | 78% | 19 |
| Gatineau | 11 | 10 | 0 | 0 | 1 | 22 | 80% | 9 |
| Geraldton | 50 | 39 | 3 | 5 | 3 | 19 | 81% | 13 |
| Gore Bay | 14 | 7 | 0 | 7 | 0 | 18 | 79% | 12 |
| Halifax | 31 | 20 | 2 | 9 | 0 | 18 | 81% | 17 |
| Hamilton | 38 | 23 | 5 | 9 | 1 | 25 | 70% | 42 |
| Havre St Pierre | 32 | 19 | 3 | 10 | 0 | 12 | 91% | 15 |
| Îles de la Madeleine | 18 | 17 | 0 | 1 | 0 | 12 | 83% | 12 |
| Inukjuak | 80 | 39 | 2 | 38 | 1 | 14 | 85% | 22 |
| Ivujivik | 5 | 5 | 0 | 0 | 0 | 23 | 60% | 8 |
| Kapuskasing | 35 | 30 | 1 | 4 | 0 | 15 | 89% | 10 |
| Kenora | 16 | 14 | 1 | 1 | 0 | 19 | 81% | 5 |
| Kingston | 13 | 10 | 1 | 2 | 0 | 17 | 69% | 8 |
| Kuujjuaq | 28 | 25 | 1 | 1 | 1 | 12 | 89% | 19 |
| Kuujjuarapik | 48 | 27 | 3 | 14 | 4 | 12 | 84% | 20 |
| La Grande IV | 26 | 13 | 0 | 13 | 0 | 10 | 88% | 11 |
| La Grande Rivière | 33 | 24 | 3 | 6 | 0 | 17 | 82% | 20 |
| London | 38 | 30 | 2 | 5 | 1 | 17 | 73% | 29 |
| Marathon | 7 | 7 | 0 | 0 | 0 | 15 | 86% | 5 |
| Mary's Harbour | 23 | 14 | 0 | 8 | 1 | 9 | 95% | 6 |
| Mirabel | 29 | 21 | 2 | 4 | 2 | 16 | 74% | 15 |
| Moncton | 37 | 32 | 2 | 3 | 0 | 16 | 70% | 10 |
| Mont-Joli | 28 | 23 | 1 | 4 | 0 | 19 | 68% | 16 |
| Moosonee | 36 | 21 | 2 | 13 | 0 | 15 | 75% | 15 |
| Muskoka | 32 | 14 | 0 | 17 | 1 | 14 | 77% | 18 |
| Muskrat Dam | 18 | 8 | 0 | 9 | 1 | 11 | 88% | 7 |
| Nain | 5 | 4 | 0 | 1 | 0 | 24 | 80% | 4 |
| Natashquan | 54 | 31 | 4 | 19 | 0 | 14 | 81% | 20 |
| North Bay | 41 | 30 | 2 | 8 | 1 | 17 | 68% | 19 |
| Ottawa | 25 | 15 | 5 | 5 | 0 | 22 | 64% | 16 |
| Peterborough | 14 | 8 | 1 | 3 | 2 | 19 | 83% | 16 |
| Pickle Lake | 9 | 7 | 0 | 2 | 0 | 19 | 56% | 2 |
| Puvirnituq | 73 | 38 | 4 | 28 | 3 | 20 | 61% | 9 |
| Quaqtaq | 8 | 7 | 0 | 1 | 0 | 9 | 100% | 6 |
| Quebec City | 43 | 33 | 4 | 6 | 0 | 17 | 79% | 17 |
| Red Lake | 13 | 12 | 0 | 1 | 0 | 11 | 92% | 4 |
| Roberval | 27 | 19 | 1 | 6 | 1 | 17 | 85% | 17 |
| Sable Island | 26 | 15 | 1 | 8 | 2 | 11 | 83% | 21 |
| Saint John | 41 | 37 | 1 | 2 | 1 | 14 | 82% | 21 |
| Sandy Lake | 8 | 4 | 0 | 3 | 1 | 16 | 86% | 4 |
| Sarnia | 22 | 13 | 0 | 9 | 0 | 17 | 73% | 17 |
| Sault Ste Marie | 37 | 29 | 2 | 6 | 0 | 16 | 81% | 18 |
| Schefferville | 43 | 22 | 1 | 20 | 0 | 14 | 86% | 11 |
| Sept-Îles | 51 | 36 | 2 | 8 | 5 | 12 | 85% | 18 |
| Sherbrooke | 20 | 10 | 1 | 9 | 0 | 15 | 70% | 10 |
| Sioux Lookout | 19 | 16 | 0 | 3 | 0 | 18 | 68% | 7 |
| St Anthony | 44 | 22 | 6 | 15 | 1 | 18 | 74% | 15 |
| St Catharines | 8 | 6 | 1 | 1 | 0 | 21 | 88% | 12 |
| St Hubert | 50 | 22 | 4 | 24 | 0 | 16 | 76% | 17 |
| St John's | 60 | 54 | 2 | 4 | 0 | 15 | 83% | 27 |
| Stephenville | 19 | 18 | 0 | 1 | 0 | 24 | 53% | 15 |
| Sudbury | 32 | 28 | 1 | 2 | 1 | 18 | 71% | 12 |
| Sydney | 29 | 27 | 2 | 0 | 0 | 16 | 86% | 15 |
| Tasiujaq | 1 | 1 | 0 | 0 | 0 | 12 | 100% | 3 |
| Thunder Bay | 27 | 24 | 0 | 1 | 2 | 14 | 92% | 15 |
| Timmins | 31 | 24 | 1 | 6 | 0 | 17 | 81% | 13 |
| Toronto City Centre | 22 | 16 | 1 | 4 | 1 | 18 | 62% | 21 |
| Toronto LBPI | 14 | 11 | 2 | 1 | 0 | 15 | 86% | 36 |
| Trois rivieres | 41 | 20 | 0 | 19 | 2 | 15 | 77% | 10 |
| Val-d'Or | 49 | 38 | 3 | 8 | 0 | 16 | 84% | 20 |
| Wabush | 24 | 12 | 2 | 10 | 0 | 22 | 75% | 7 |
| Waskaganish | 3 | 3 | 0 | 0 | 0 | 10 | 100% | 1 |
| Waterloo/Wellington | 31 | 14 | 2 | 15 | 0 | 17 | 81% | 33 |
| Wawa | 5 | 5 | 0 | 0 | 0 | 13 | 80% | 6 |
| Wiarton | 12 | 12 | 0 | 0 | 0 | 21 | 58% | 8 |
| Windsor | 14 | 9 | 1 | 0 | 4 | 14 | 70% | 25 |
| Yarmouth | 37 | 28 | 5 | 3 | 1 | 21 | 67% | 17 |
| 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 | 22 | 14 | 3 | 5 | 0 | 16 | 73% | 6 |
| Arctic Bay | 1 | 1 | 0 | 0 | 0 | 16 | 100% | 1 |
| Arviat | 38 | 22 | 4 | 11 | 1 | 18 | 78% | 13 |
| Baker Lake | 28 | 17 | 2 | 7 | 2 | 25 | 58% | 16 |
| Bella Bella | 30 | 9 | 0 | 21 | 0 | 11 | 93% | 10 |
| Brandon | 14 | 10 | 2 | 2 | 0 | 11 | 93% | 5 |
| Buffalo Narrows | 13 | 10 | 1 | 1 | 1 | 16 | 67% | 5 |
| Burwash | 12 | 7 | 0 | 5 | 0 | 17 | 67% | 7 |
| Calgary Intl | 35 | 26 | 6 | 3 | 0 | 12 | 83% | 31 |
| Cambridge Bay | 27 | 23 | 2 | 2 | 0 | 16 | 85% | 22 |
| Campbell River | 18 | 12 | 1 | 5 | 0 | 21 | 61% | 2 |
| Cape Dorset | 63 | 29 | 6 | 26 | 2 | 18 | 72% | 21 |
| Castlegar | 8 | 6 | 1 | 1 | 0 | 15 | 75% | 5 |
| Churchill | 31 | 29 | 0 | 2 | 0 | 13 | 87% | 9 |
| Clyde River | 45 | 31 | 1 | 11 | 2 | 15 | 74% | 16 |
| Coral Harbour | 27 | 19 | 1 | 5 | 2 | 24 | 68% | 10 |
| Cranbrook | 5 | 3 | 1 | 1 | 0 | 16 | 80% | 8 |
| Deline | 6 | 4 | 0 | 2 | 0 | 8 | 83% | 5 |
| Dauphin | 24 | 10 | 2 | 12 | 0 | 16 | 79% | 7 |
| Dawson City | 3 | 3 | 0 | 0 | 0 | 2 | 100% | 1 |
| Dawson Creek | 17 | 5 | 1 | 10 | 1 | 11 | 88% | 3 |
| Dease Lake | 8 | 2 | 0 | 5 | 1 | 10 | 86% | 2 |
| Edmonton Intl | 47 | 35 | 6 | 6 | 0 | 11 | 91% | 26 |
| Edmonton Villeneuve | 64 | 41 | 6 | 17 | 0 | 12 | 83% | 18 |
| Estevan | 8 | 8 | 0 | 0 | 0 | 12 | 88% | 5 |
| Eureka | 6 | 5 | 0 | 0 | 1 | 14 | 80% | 2 |
| Faro | 2 | 1 | 0 | 0 | 1 | 18 | 100% | 1 |
| Fort Chipewyan | 21 | 8 | 1 | 12 | 0 | 14 | 90% | 3 |
| Fort Good Hope | 8 | 7 | 1 | 0 | 0 | 14 | 75% | 5 |
| Fort McMurray | 28 | 17 | 1 | 9 | 1 | 13 | 81% | 5 |
| Fort McPherson | 1 | 0 | 0 | 1 | 0 | 71 | 0% | 9 |
| Fort Nelson | 17 | 14 | 1 | 2 | 0 | 14 | 82% | 3 |
| Fort Simpson | 9 | 7 | 2 | 0 | 0 | 12 | 78% | 7 |
| Fort Smith | 5 | 2 | 0 | 2 | 1 | 30 | 75% | 0 |
| Fort St John | 16 | 14 | 1 | 1 | 0 | 14 | 81% | 5 |
| Gillam | 22 | 19 | 2 | 1 | 0 | 19 | 77% | 7 |
| Gjoa Haven | 45 | 27 | 5 | 13 | 0 | 16 | 64% | 27 |
| Grande Prairie | 25 | 24 | 0 | 1 | 0 | 17 | 76% | 13 |
| Hall Beach | 67 | 47 | 9 | 11 | 0 | 16 | 67% | 12 |
| Hay River | 4 | 3 | 0 | 1 | 0 | 17 | 75% | 2 |
| High Level | 11 | 8 | 0 | 2 | 1 | 15 | 90% | 2 |
| Holman | 7 | 6 | 0 | 0 | 1 | 14 | 83% | 2 |
| Igloolik | 11 | 8 | 0 | 3 | 0 | 11 | 91% | 10 |
| Inuvik | 19 | 16 | 1 | 2 | 0 | 13 | 74% | 10 |
| Iqaluit | 33 | 29 | 1 | 2 | 1 | 15 | 72% | 11 |
| Island Lake | 15 | 13 | 2 | 0 | 0 | 15 | 80% | 12 |
| Kamloops | 2 | 1 | 0 | 1 | 0 | 31 | 50% | 4 |
| Kelowna | 22 | 11 | 0 | 11 | 0 | 12 | 86% | 4 |
| Key Lake | 4 | 3 | 0 | 1 | 0 | 17 | 75% | 3 |
| Kugaaruk | 4 | 3 | 1 | 0 | 0 | 7 | 100% | 14 |
| Kugluktuk | 25 | 12 | 8 | 3 | 2 | 31 | 65% | 22 |
| La Ronge | 9 | 9 | 0 | 0 | 0 | 11 | 89% | 3 |
| Lethbridge | 32 | 26 | 2 | 4 | 0 | 10 | 91% | 15 |
| Lloydminster | 46 | 32 | 4 | 9 | 1 | 14 | 84% | 20 |
| Lutselk'e | 0 | 0 | 0 | 0 | 0 | N/A | N/A | 8 |
| Lynn Lake | 12 | 9 | 1 | 2 | 0 | 11 | 100% | 7 |
| Mackenzie | 17 | 8 | 2 | 6 | 1 | 16 | 69% | 1 |
| Masset | 16 | 9 | 0 | 6 | 1 | 13 | 80% | 3 |
| Mayo | 5 | 5 | 0 | 0 | 0 | 10 | 80% | 3 |
| Medicine Hat | 19 | 15 | 1 | 3 | 0 | 10 | 89% | 18 |
| Nanaimo | 13 | 11 | 0 | 1 | 1 | 9 | 92% | 2 |
| Norman Wells | 7 | 7 | 0 | 0 | 0 | 10 | 86% | 3 |
| North Battleford | 28 | 16 | 1 | 11 | 0 | 11 | 86% | 18 |
| Norway House | 36 | 20 | 1 | 12 | 3 | 10 | 91% | 6 |
| Old Crow | 4 | 3 | 1 | 0 | 0 | 16 | 75% | 7 |
| Pangnirtung | 2 | 2 | 0 | 0 | 0 | 38 | 50% | 1 |
| Paulatuk | 3 | 1 | 1 | 1 | 0 | 32 | 67% | 13 |
| Peace River | 20 | 19 | 1 | 0 | 0 | 10 | 85% | 10 |
| Penticton | 6 | 6 | 0 | 0 | 0 | 10 | 100% | 10 |
| Pond Inlet | 34 | 19 | 1 | 14 | 0 | 18 | 79% | 7 |
| Port Hardy | 9 | 6 | 1 | 2 | 0 | 27 | 56% | 8 |
| Prince Albert | 21 | 18 | 1 | 2 | 0 | 15 | 86% | 5 |
| Prince George | 29 | 18 | 1 | 9 | 1 | 12 | 86% | 11 |
| Qikiqtarjuaq | 44 | 25 | 2 | 15 | 2 | 13 | 88% | 11 |
| Quesnel | 23 | 12 | 0 | 11 | 0 | 9 | 100% | 14 |
| Rae Lake | 3 | 2 | 0 | 1 | 0 | 18 | 67% | 0 |
| Rankin Inlet | 42 | 34 | 3 | 4 | 1 | 22 | 68% | 17 |
| Red Deer | 37 | 32 | 3 | 1 | 1 | 11 | 89% | 15 |
| Regina | 14 | 13 | 1 | 0 | 0 | 12 | 93% | 11 |
| Repulse Bay | 18 | 11 | 0 | 3 | 4 | 15 | 79% | 4 |
| Resolute Bay | 18 | 14 | 1 | 3 | 0 | 15 | 78% | 14 |
| Sachs Harbour | 5 | 5 | 0 | 0 | 0 | 7 | 100% | 8 |
| Sandspit | 45 | 19 | 2 | 24 | 0 | 13 | 80% | 11 |
| Saskatoon | 13 | 11 | 0 | 2 | 0 | 10 | 92% | 7 |
| Slave Lake | 40 | 26 | 2 | 12 | 0 | 14 | 90% | 20 |
| Smithers | 3 | 1 | 0 | 1 | 1 | 6 | 100% | 1 |
| Springbank | 49 | 30 | 2 | 15 | 2 | 9 | 96% | 14 |
| Stony Rapids | 3 | 3 | 0 | 0 | 0 | 15 | 67% | 5 |
| Swift Current | 34 | 21 | 2 | 11 | 0 | 9 | 94% | 19 |
| Taloyoak | 25 | 23 | 1 | 1 | 0 | 19 | 64% | 15 |
| Terrace | 9 | 9 | 0 | 0 | 0 | 21 | 44% | 13 |
| Teslin | 2 | 1 | 0 | 1 | 0 | 19 | 100% | 1 |
| The Pas | 29 | 24 | 5 | 0 | 0 | 9 | 93% | 8 |
| Thompson | 16 | 14 | 1 | 1 | 0 | 16 | 88% | 4 |
| Tofino | 9 | 5 | 0 | 4 | 0 | 15 | 89% | 12 |
| Tuktoyaktuk | 15 | 13 | 2 | 0 | 0 | 19 | 60% | 13 |
| Vancouver | 11 | 7 | 2 | 2 | 0 | 12 | 91% | 8 |
| Victoria | 8 | 7 | 0 | 0 | 1 | 25 | 57% | 4 |
| Victoria Harbour | 6 | 5 | 0 | 1 | 0 | 17 | 83% | 0 |
| Watson Lake | 5 | 5 | 0 | 0 | 0 | 10 | 100% | 1 |
| Wekweeti | 7 | 6 | 0 | 1 | 0 | 10 | 71% | 8 |
| Whitecourt | 15 | 13 | 0 | 2 | 0 | 14 | 80% | 6 |
| Whitehorse | 1 | 1 | 0 | 0 | 0 | 21 | 0% | 1 |
| Williams Lake | 30 | 26 | 1 | 3 | 0 | 15 | 87% | 9 |
| Winnipeg | 19 | 15 | 1 | 3 | 0 | 10 | 95% | 7 |
| Yellowknife | 7 | 7 | 0 | 0 | 0 | 17 | 71% | 6 |
| Note: tThe Scenario indicates the amendment criteria that is used in calculating the amendment response time. The scenario “NC_CRITERIA” uses all the MANAIR (Standards Document) amendment criteria defined in section 2.9 Amended TAFs with the exception of the 2500/6 ceiling and visibility threshold (when actual conditions are better than forecast), Obscurations, and Wind. | ||||||||