TAF performance measurement results for TAFs issued during August 2011
Canadian Meteorological Aviation Centre/East (Montreal)
Station VFR Category Above IFR Alternate Category Below IFR Alternate Category
Station Station Type Correct Forecasts (hours) Total Forecasts (hours) VFR Reliability Index Correct Forecasts (hours) Total Forecasts (hours) Alternate Reliability Index False Alarms (hours) Total Forecasts (hours) *Below Alternate False Alarm Ratio
Baie Comeau NCA 813 971 84% 945 1078 88% 85 148 58%
Bathurst CWO 556 632 88% 585 664 88% 36 102 35%
Big Trout Lake AWOS 687 815 84% 711 819 87% 33 78 43%
Blanc Sablon CWO 712 807 88% 776 896 87% 95 307 31%
Buttonville CWO 903 964 94% 940 973 97% 28 40 NSS
Cartwright CWO 802 850 94% 790 840 94% 87 142 61%
Chapleau CWO 423 426 99% 423 426 99% 5 7 NSS
Charlottetown ATS 748 877 85% 877 956 92% 48 98 49%
Chibougamau-Chapais CWO 427 465 92% 446 478 93% 24 36 NSS
Churchill Falls AWOS 724 827 88% 772 849 91% 50 105 48%
Deer Lake ATS 851 923 92% 919 969 95% 19 49 38%
Dorval CWO 1618 1628 99% 1680 1680 100% 0 0 NSS
Dryden NCA 902 939 96% 930 962 97% 9 19 NSS
Earlton CWO 414 442 94% 437 452 97% 13 20 NSS
Fredericton NCA 722 843 86% 922 971 95% 54 91 59%
Gander CWO 650 749 87% 876 936 94% 79 162 49%
Gaspé CWO 690 769 90% 723 806 90% 49 192 26%
Gatineau ATS 429 439 98% 430 440 98% 5 6 NSS
Geraldton CWO 836 902 93% 870 929 94% 17 44 39%
Gore Bay NCA 404 422 96% 418 428 98% 10 16 NSS
Halifax ATS 999 1245 80% 1332 1593 84% 135 377 36%
Hamilton CWO 873 930 94% 917 962 95% 21 42 NSS
Havre St Pierre NCA 722 891 81% 798 944 85% 164 310 53%
Îles de la Madeleine ATS 509 579 88% 577 619 93% 16 64 25%
Inukjuak AWOS/CARS 576 776 74% 687 895 77% 107 405 26%
Ivujivik CARS 93 123 76% 108 149 72% 12 50 25%
Kapuskasing CWO 890 928 96% 909 937 97% 33 42 NSS
Kenora ATS 882 914 96% 903 933 97% 12 17 NSS
Kingston ATS 586 601 98% 610 618 99% 1 2 NSS
Kuujjuaq ATS 787 845 93% 881 893 99% 13 26 NSS
Kuujjuarapik CWO 742 848 87% 871 994 88% 129 309 42%
La Grande IV AWOS/CWO 203 221 92% 224 236 95% 16 29 NSS
La Grande Rivière ATS 765 896 85% 823 966 85% 77 240 32%
London ATS 913 1009 91% 979 1042 94% 27 56 48%
Marathon CWO 193 203 95% 193 203 95% 3 10 NSS
Mary's Harbour AWOS/CWO 610 717 85% 650 738 88% 36 87 42%
Mirabel ATS 899 980 92% 1010 1033 98% 3 6 NSS
Moncton CWO 789 882 89% 1008 1032 98% 33 41 NSS
Mont-Joli ATS 873 991 88% 909 1029 88% 58 172 34%
Moosonee NCA 387 401 97% 403 415 97% 9 17 NSS
Muskoka NCA 578 598 97% 587 603 97% 9 14 NSS
Nain CWO 348 362 96% 277 302 92% 60 204 29%
Natashquan AWOS 726 911 80% 802 963 83% 137 285 48%
North Bay CWO 827 865 96% 863 893 97% 26 39 NSS
Ottawa CWO 1548 1577 98% 1626 1638 99% 4 7 NSS
Peterborough NCA 582 615 95% 597 617 97% 22 35 NSS
Pickle Lake CWO 390 402 97% 394 405 97% 5 17 NSS
Puvirnituq CARS 120 147 81% 152 176 86% 25 49 NSS
Quaqtaq CARS 68 84 81% 77 96 80% 17 78 21%
Quebec City ATS 956 1038 92% 1077 1105 97% 45 57 NSS
Red Lake CWO 605 632 96% 622 645 97% 10 20 NSS
Roberval CWO 610 623 98% 623 636 98% 7 11 NSS
Rouyn-Noranda ATS 815 871 93% 836 885 94% 33 64 51%
Sable Island AWOS 215 285 76% 269 326 83% 105 283 37%
Saint John ATS 518 604 86% 751 840 89% 69 323 21%
Sarnia NCA 601 608 99% 615 617 100% 4 4 NSS
Sault Ste Marie ATS 884 929 95% 923 956 97% 36 64 NSS
Schefferville AWOS 828 899 92% 890 940 95% 39 67 59%
Sept-Îles ATS 597 765 78% 773 917 84% 134 279 48%
Sherbrooke NCA 453 482 94% 471 498 95% 22 35 NSS
Sioux Lookout ATS 901 931 97% 920 944 97% 15 23 NSS
St Anthony NCA 688 821 84% 786 906 87% 118 329 36%
St Catharines ATS 231 231 100% 231 231 100% 0 0 NSS
St Hubert NCA 927 951 97% 987 991 100% 12 12 NSS
St John's CWO 538 677 80% 816 929 88% 98 397 25%
Stephenville CWO 885 904 98% 917 932 98% 29 41 NSS
Sudbury CWO 784 822 95% 808 835 97% 16 30 NSS
Sydney CWO 523 654 80% 647 792 82% 92 328 28%
Tasiujaq CARS 156 160 98% 164 167 98% 8 12 NSS
Thunder Bay ATS/AA 793 838 95% 806 849 95% 5 28 NSS
Timmins ATS 846 868 97% 888 900 99% 8 13 NSS
Toronto City Centre NCA 900 938 96% 941 957 98% 6 11 NSS
Toronto LBPI CWO 1577 1627 97% 1666 1672 100% 2 3 NSS
Val-d'Or AWOS/ATS 851 924 92% 943 981 96% 25 40 NSS
Wabush ATS 892 933 96% 998 1013 99% 16 23 NSS
Waskaganish CARS 67 67 99% 71 71 100% 8 11 NSS
Waterloo/Wellington NCA 604 648 93% 651 669 97% 13 23 NSS
Wawa CWO 263 285 92% 258 282 92% 12 18 NSS
Wiarton CWO 442 468 95% 455 470 97% 6 10 NSS
Windsor CWO 904 911 99% 940 941 100% 8 8 NSS
Yarmouth CWO 486 634 77% 573 742 77% 183 562 33%
Canadian Meteorological Aviation Centre/West (Edmonton)
Station VFR Category Above IFR Alternate Category Below IFR Alternate Category
Station Station Type Correct Forecasts (hours) Total Forecasts (hours) Reliability Index Correct Forecasts (hours) Total Forecasts (hours) Alternate Reliability Index Incorrect Forecasts (hours) Total Forecasts (hours) *Below Alternate False Alarm Ratio
Abbotsford CWO 792 801 99% 802 806 99% 1 4 NSS
Arctic Bay AWS 131 131 100% **N/A N/A N/A N/A N/A N/A
Arviat AWOS/CARS 649 778 83% 690 807 86% 110 299 37%
Baker Lake CARS 855 908 94% 906 944 96% 26 34 NSS
Bella Bella AWOS 386 462 84% 328 450 73% 32 117 27%
Brandon ATS 834 841 99% 835 842 99% 5 9 NSS
Buffalo Narrows CWO 444 456 97% 446 456 98% 13 18 NSS
Burwash AWOS/CARS 846 852 99% 753 804 94% 33 54 NSS
Calgary Intl CWO 1622 1631 99% 1656 1656 100% 0 0 NSS
Cambridge Bay CARS 747 931 80% 845 1003 84% 47 125 38%
Campbell River ATS 383 383 100% 383 383 100% 0 0 NSS
Cape Dorset AWOS/CARS 390 507 77% 395 512 77% 80 502 16%
Castlegar ATS 398 398 100% 398 398 100% 1 1 NSS
Churchill ATS/AA 813 905 90% 941 1046 90% 49 171 29%
Clyde River AWOS/CARS 372 554 67% 397 577 69% 117 471 25%
Coral Harbour CARS 597 718 83% 657 772 85% 44 169 26%
Cranbrook ATS 839 839 100% 839 839 100% 0 0 NSS
Dauphin NCA 856 858 100% 858 860 100% 7 7 NSS
Dawson City CARS 384 389 99% 359 380 95% 15 28 NSS
Dawson Creek NCA 380 384 99% 380 384 99% 0 2 NSS
Deline CARS 147 153 96% 147 153 96% 5 10 NSS
Edmonton Intl CWO 1585 1587 100% 1603 1603 100% 2 2 NSS
Edmonton Muni AWOS 888 898 99% 910 911 100% 4 4 NSS
Eureka CWO 405 405 100% 406 406 100% 0 0 NSS
Faro CARS 375 380 99% 357 365 98% 23 27 NSS
Fort Chipewyan NCA 194 207 94% 199 209 95% 15 21 NSS
Fort Good Hope CARS 151 173 87% 157 174 90% 5 13 NSS
Fort McMurray AWOS 913 958 95% 952 978 97% 16 26 NSS
Fort McPherson CARS 132 136 97% 135 138 98% 2 5 NSS
Fort Nelson ATS 847 880 96% 857 887 97% 7 20 NSS
Fort Simpson CARS 844 887 95% 869 907 96% 27 36 NSS
Fort Smith CARS 803 858 94% 818 870 94% 15 58 26%
Fort St John ATS 775 786 99% 775 786 99% 0 10 NSS
Gillam CWO 1049 1113 94% 1102 1158 95% 32 58 56%
Gjoa Haven AWOS/CARS 702 844 83% 770 878 88% 80 148 54%
Grande Prairie ATS 836 837 100% 840 840 100% 0 0 NSS
Hall Beach AWOS/CARS 677 800 85% 712 822 87% 94 186 50%
Hay River CARS 792 826 96% 821 847 97% 11 21 NSS
High Level ATS 861 902 95% 889 924 96% 16 26 NSS
Holman CARS 156 165 94% 156 169 92% 6 20 NSS
Igloolik CARS 166 208 80% 171 212 81% 17 29 NSS
Inuvik ATS/AA 693 845 82% 895 973 92% 52 96 54%
Iqaluit ATS/AA 649 768 85% 802 905 89% 87 168 52%
Island Lake CWO 909 926 98% 946 959 99% 20 31 NSS
Kamloops ATS 817 817 100% 817 817 100% 0 0 NSS
Kelowna NCA 794 795 100% 794 795 100% 0 0 NSS
Kugaaruk CARS 177 187 95% 188 195 97% 22 29 NSS
Kugluktuk CARS 779 913 85% 815 938 87% 65 102 64%
La Ronge ATS 877 891 98% 887 896 99% 9 14 NSS
Lethbridge ATS/AWOS 932 942 99% 947 953 99% 0 1 NSS
Lloydminster ATS/NCA 857 864 99% 860 865 99% 13 14 NSS
Lutselk'e CARS 142 143 99% 142 143 99% 9 10 NSS
Lynn Lake NCA 901 942 96% 921 961 96% 19 40 NSS
Mackenzie NCA 593 599 99% 593 599 99% 3 9 NSS
Masset CWO 185 194 96% 192 197 97% 8 11 NSS
Mayo CARS 773 789 98% 746 766 97% 29 36 NSS
Medicine Hat ATS/NCA 846 853 99% 850 855 99% 1 2 NSS
Nanaimo ATS 386 387 100% 389 389 100% 0 0 NSS
Norman Wells ATS 844 869 97% 844 869 97% 11 17 NSS
North Battleford NCA 907 932 97% 914 938 97% 32 45 NSS
Norway House NCA 832 968 86% 870 984 88% 34 48 71%
Old Crow CARS 400 403 99% 392 398 99% 14 20 NSS
Pangnirtung LWIS/CARS 168 173 97% 124 141 88% 22 48 NSS
Paulatuk CARS 158 175 90% 171 189 90% 6 18 NSS
Peace River ATS 829 844 98% 838 855 98% 4 11 NSS
Penticton ATS 771 771 100% 771 771 100% 0 0 NSS
Pond Inlet AWOS/CARS 783 801 98% 784 801 98% 21 32 NSS
Port Hardy ATS 842 912 92% 889 936 95% 20 45 NSS
Prince Albert ATS 911 941 97% 936 956 98% 10 24 NSS
Prince George NCA 842 876 96% 847 878 96% 14 32 NSS
Prince Rupert NCA 852 966 88% 965 1029 94% 23 40 57%
Qikiqtarjuaq AWOS/CARS 454 648 70% 301 466 65% 119 540 22%
Quesnel NCA 415 472 88% 415 472 88% 9 44 21%
Rae Lake CARS 153 155 99% 160 163 98% 8 15 NSS
Rankin Inlet ATS 646 762 85% 682 809 84% 66 250 27%
Red Deer ATS 872 881 99% 881 890 99% 6 11 NSS
Regina ATS/AA 952 964 99% 974 975 100% 0 0 NSS
Repulse Bay CARS 138 146 95% 140 147 95% 5 17 NSS
Resolute CARS 607 773 79% 759 881 86% 117 216 54%
Sachs Harbour CARS 142 198 72% 149 202 74% 8 32 24%
Sandspit NCA 804 844 95% 852 868 98% 10 13 NSS
Saskatoon ATS/AA 897 905 99% 917 918 100% 3 3 NSS
Slave Lake NCA 815 820 99% 815 820 99% 11 15 NSS
Smithers ATS/NCA 383 385 100% 383 385 100% 6 9 NSS
Springbank CWO 422 432 98% 432 439 98% 5 7 NSS
Stony Rapids NCA 599 650 92% 611 661 92% 44 83 53%
Swift Current NCA 499 540 92% 506 542 93% 6 12 NSS
Taloyoak CARS 820 837 98% 844 853 99% 10 17 NSS
Terrace ATS 796 820 97% 826 839 98% 4 7 NSS
Teslin CARS 413 413 100% 264 337 78% 19 78 24%
The Pas CWO 910 945 96% 922 951 97% 13 22 NSS
Thompson ATS 929 974 95% 985 1014 97% 18 27 NSS
Tofino CWO 300 369 81% 321 389 82% 21 59 35%
Tuktoyaktuk CARS 307 379 81% 335 405 83% 43 94 46%
Vancouver CWO 1574 1590 99% 1597 1598 100% 1 1 NSS
Victoria CWO 811 812 100% 813 813 100% 0 0 NSS
Victoria Harbour ATS 392 394 100% 394 394 100% 1 1 NSS
Watson Lake CARS 783 804 97% 793 808 98% 1 6 NSS
Whitecourt ATS 192 192 100% 192 192 100% 0 0 NSS
Whitehorse ATS 833 841 99% 844 846 100% 5 5 NSS
Williams Lake ATS 816 825 99% 821 828 99% 7 11 NSS
Winnipeg ATS/AA 886 896 99% 902 905 100% 2 3 NSS
Yellowknife ATS 823 851 97% 860 876 98% 13 20 NSS
Yorkton CWO 642 674 95% 652 681 96% 3 13 NSS
*Note: NSS stands for Not Statistically Significant
**Note: N/A stands for Not Applicable