TAF performance measurement results for TAFs issued during April 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 700 816 86% 808 900 90% 69 130 54%
Bathurst CWO 504 575 88% 523 607 86% 33 128 26%
Big Trout Lake AWOS 718 817 88% 756 829 91% 37 77 49%
Blanc Sablon CWO 691 777 89% 726 825 88% 82 252 33%
Buttonville CWO 781 864 90% 804 875 92% 49 131 38%
Cartwright CWO 715 815 88% 713 811 88% 65 195 33%
Chapleau CWO 329 381 86% 329 381 86% 27 105 26%
Charlottetown ATS 647 758 85% 784 873 90% 90 165 55%
Chibougamau-Chapais CWO 310 353 88% 344 378 91% 33 88 38%
Churchill Falls AWOS 686 781 88% 717 806 89% 67 170 39%
Deer Lake ATS 822 862 95% 905 920 98% 46 54 NSS
Dorval CWO 1450 1517 96% 1588 1605 99% 20 35 NSS
Dryden NCA 660 705 94% 714 752 95% 21 43 NSS
Earlton CWO 300 339 88% 323 368 88% 11 54 21%
Fredericton NCA 647 730 89% 791 852 93% 69 133 52%
Gander CWO 630 752 84% 913 962 95% 42 84 50%
Gaspé CWO 682 747 91% 709 766 92% 67 177 38%
Gatineau ATS 389 416 93% 393 418 94% 11 38 NSS
Geraldton CWO 758 802 95% 765 806 95% 18 129 14%
Gore Bay NCA 295 314 94% 306 331 92% 16 35 NSS
Halifax ATS 1011 1144 88% 1199 1383 87% 70 454 15%
Hamilton CWO 727 870 84% 812 921 88% 44 181 24%
Havre St Pierre NCA 700 821 85% 733 879 83% 63 189 33%
Îles de la Madeleine ATS 421 463 91% 441 493 89% 32 161 20%
Inukjuak AWOS/CARS 586 729 80% 633 761 83% 52 170 31%
Ivujivik CARS 143 163 87% 161 174 93% 15 32 NSS
Kapuskasing CWO 641 719 89% 673 738 91% 31 161 19%
Kenora ATS 688 755 91% 712 795 90% 34 145 24%
Kingston ATS 560 588 95% 617 631 98% 13 16 NSS
Kuujjuaq ATS 746 800 93% 854 866 99% 4 7 NSS
Kuujjuarapik CWO 698 804 87% 730 829 88% 52 158 33%
La Grande IV AWOS/CWO 169 199 85% 182 207 88% 15 50 NSS
La Grande Rivière ATS 711 793 90% 740 815 91% 49 121 41%
London ATS 779 892 87% 892 977 91% 32 101 32%
Marathon CWO 149 165 90% 149 165 90% 4 37 NSS
Mary's Harbour AWOS/CWO 455 504 90% 470 524 90% 41 134 31%
Mirabel ATS 737 839 88% 901 970 93% 26 64 41%
Moncton CWO 726 870 83% 992 1037 96% 27 61 44%
Mont-Joli ATS 761 820 93% 790 845 93% 49 114 43%
Moosonee NCA 363 389 93% 382 404 94% 17 50 NSS
Muskoka NCA 511 577 89% 551 605 91% 41 65 63%
Nain CWO 379 404 94% 367 386 95% 15 53 NSS
Natashquan AWOS 664 750 89% 705 810 87% 46 190 24%
North Bay CWO 680 796 85% 771 902 85% 73 225 32%
Ottawa CWO 1391 1470 95% 1589 1621 98% 30 58 NSS
Peterborough NCA 554 588 94% 579 603 96% 38 66 NSS
Pickle Lake CWO 347 353 98% 348 353 98% 15 29 NSS
Puvirnituq CARS 145 167 87% 158 177 89% 2 14 NSS
Quaqtaq CARS 147 165 89% 149 167 89% 8 13 NSS
Quebec City ATS 709 795 89% 810 866 93% 67 122 55%
Red Lake CWO 507 556 91% 530 568 93% 37 86 43%
Roberval CWO 521 558 93% 532 574 93% 12 58 20%
Rouyn-Noranda ATS 608 695 87% 649 769 84% 62 237 26%
Sable Island AWOS 299 352 85% 331 402 82% 38 169 22%
Saint John ATS 598 684 87% 748 813 92% 72 227 32%
Sarnia NCA 567 587 97% 610 618 99% 20 25 NSS
Sault Ste Marie ATS 670 772 87% 789 878 90% 72 137 52%
Schefferville AWOS 667 789 85% 747 845 88% 67 179 38%
Sept-Îles ATS 646 758 85% 736 844 87% 57 163 35%
Sherbrooke NCA 414 454 91% 444 482 92% 54 74 NSS
Sioux Lookout ATS 685 717 96% 698 735 95% 37 92 41%
St Anthony NCA 706 850 83% 779 933 84% 73 206 36%
St Catharines ATS 208 240 87% 221 250 88% 12 37 NSS
St Hubert NCA 790 838 94% 849 870 98% 21 56 NSS
St John's CWO 652 763 85% 903 976 93% 55 132 41%
Stephenville CWO 798 875 91% 905 955 95% 45 78 58%
Sudbury CWO 638 713 89% 716 796 90% 55 205 27%
Sydney CWO 643 726 89% 792 853 93% 98 213 46%
Tasiujaq CARS 93 97 96% 93 97 96% 3 7 NSS
Thunder Bay ATS/AA 711 760 94% 782 815 96% 24 68 36%
Timmins ATS 639 735 87% 732 868 84% 37 127 29%
Toronto City Centre NCA 788 873 90% 860 932 92% 66 140 47%
Toronto LBPI CWO 1397 1479 94% 1576 1631 97% 29 65 44%
Val-d'Or AWOS/ATS 576 676 85% 681 814 84% 36 183 20%
Wabush ATS 710 789 90% 778 844 92% 53 112 48%
Waskaganish CARS 100 107 94% 107 113 95% 0 13 NSS
Waterloo/Wellington NCA 582 658 88% 652 697 93% 14 43 NSS
Wawa CWO 186 206 90% 176 197 89% 27 55 NSS
Wiarton CWO 370 427 87% 388 436 89% 25 59 43%
Windsor CWO 819 889 92% 914 964 95% 55 118 47%
Yarmouth CWO 559 624 90% 601 693 87% 39 394 10%
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 855 881 97% 888 901 99% 7 9 NSS
Arctic Bay AWS 111 114 97% 114 114 100% 0 0 NSS
Arviat AWOS/CARS 671 806 83% 711 827 86% 102 175 58%
Baker Lake CARS 780 842 93% 804 854 94% 82 139 59%
Bella Bella AWOS 452 511 89% 376 472 80% 53 104 51%
Brandon ATS 732 807 91% 762 836 91% 78 198 39%
Buffalo Narrows CWO 370 374 99% 370 374 99% 6 8 NSS
Burwash AWOS/CARS 794 838 95% 711 787 90% 52 86 61%
Calgary Intl CWO 1350 1473 92% 1560 1608 97% 17 47 37%
Cambridge Bay CARS 695 831 84% 820 910 90% 73 129 56%
Campbell River ATS 373 397 94% 406 408 100% 3 4 NSS
Cape Dorset AWOS/CARS 509 767 66% 542 776 70% 143 334 43%
Castlegar ATS 416 418 100% 359 374 96% 30 55 NSS
Churchill ATS/AA 851 951 89% 933 989 94% 21 42 50%
Clyde River AWOS/CARS 727 785 93% 730 787 93% 43 55 NSS
Coral Harbour CARS 748 811 92% 752 813 92% 53 93 57%
Cranbrook ATS 790 844 94% 812 867 94% 16 42 39%
Dauphin NCA 770 811 95% 800 832 96% 26 87 30%
Dawson City CARS 176 178 99% 169 177 95% 1 3 NSS
Dawson Creek NCA 385 416 92% 387 416 93% 12 27 NSS
Deline CARS 148 157 95% 150 159 94% 9 15 NSS
Edmonton Intl CWO 1430 1469 97% 1487 1523 98% 12 25 NSS
Edmonton Muni AWOS 741 774 96% 783 806 97% 11 25 NSS
Eureka CWO 391 402 97% 391 402 97% 5 10 NSS
Faro CARS 176 176 100% 175 176 100% 4 4 NSS
Fort Chipewyan AWOS 194 195 99% 195 195 100% 2 2 NSS
Fort Good Hope CARS 127 144 88% 128 144 89% 7 13 NSS
Fort McMurray AWOS 800 858 93% 833 871 96% 15 29 NSS
Fort McPherson CARS 144 145 99% 144 145 99% 3 3 NSS
Fort Nelson ATS 777 807 96% 799 821 97% 13 22 NSS
Fort Simpson CARS 762 775 98% 778 784 99% 9 10 NSS
Fort Smith CARS 807 833 97% 837 847 99% 6 9 NSS
Fort St John ATS 722 783 92% 743 800 93% 19 47 40%
Gillam CWO 825 861 96% 852 883 96% 10 26 NSS
Gjoa Haven AWOS/CARS 493 693 71% 552 721 77% 84 219 38%
Grande Prairie ATS 753 766 98% 779 788 99% 15 28 NSS
Hall Beach AWOS/CARS 779 812 96% 803 827 97% 36 44 NSS
Hay River CARS 789 853 93% 820 875 94% 18 39 46%
High Level ATS 781 825 95% 790 834 95% 3 17 NSS
Holman CARS 161 184 88% 165 184 90% 9 14 NSS
Igloolik CARS 230 240 96% 237 240 99% 4 4 NSS
Inuvik ATS/AA 773 874 88% 864 927 93% 44 68 64%
Iqaluit ATS/AA 888 915 97% 945 949 100% 12 13 NSS
Island Lake CWO 755 791 95% 791 821 96% 15 28 NSS
Kamloops ATS 847 850 100% 829 839 99% 6 11 NSS
Kelowna NCA 804 806 100% 804 806 100% 3 4 NSS
Kugaaruk CARS 165 201 82% 166 201 82% 4 14 NSS
Kugluktuk CARS 757 842 90% 770 848 91% 56 92 61%
La Ronge ATS 770 779 99% 775 781 99% 7 8 NSS
Lethbridge ATS/AWOS 760 823 92% 796 861 92% 17 65 27%
Lloydminster ATS/NCA 795 837 95% 815 851 96% 14 33 NSS
Lutselk'e CARS 143 144 99% 143 144 99% 0 0 NSS
Lynn Lake NCA 796 839 95% 817 848 96% 21 31 NSS
Mackenzie NCA 583 593 98% 583 593 98% 13 20 NSS
Masset CWO 400 409 98% 415 415 100% 8 8 NSS
Mayo CARS 748 754 99% 740 751 99% 11 13 NSS
Medicine Hat ATS/NCA 804 878 92% 824 891 92% 36 85 42%
Nanaimo ATS 395 409 97% 403 412 98% 7 9 NSS
Norman Wells ATS 780 815 96% 780 815 96% 29 42 NSS
North Battleford NCA 809 818 99% 819 824 99% 11 14 NSS
Norway House NCA 690 799 86% 721 807 89% 25 95 27%
Old Crow CARS 366 376 97% 365 374 97% 4 8 NSS
Pangnirtung LWIS/CARS 139 140 99% 109 115 95% 17 31 NSS
Paulatuk CARS 143 173 83% 156 184 85% 5 31 NSS
Peace River ATS 737 751 98% 749 764 98% 20 29 NSS
Penticton ATS 804 804 100% 790 792 100% 4 13 NSS
Pond Inlet AWOS/CARS 805 831 97% 805 831 97% 19 25 NSS
Port Hardy ATS 787 794 99% 802 804 100% 6 6 NSS
Prince Albert ATS 736 756 97% 747 766 98% 13 23 NSS
Prince George NCA 816 886 92% 848 898 94% 9 34 27%
Prince Rupert NCA 874 884 99% 893 895 100% 2 2 NSS
Qikiqtarjuaq AWOS/CARS 757 818 93% 687 788 87% 50 88 57%
Quesnel NCA 408 427 96% 407 426 95% 3 10 NSS
Rae Lake CARS 108 113 95% 108 113 95% 4 6 NSS
Rankin Inlet ATS 716 858 83% 809 932 87% 51 141 36%
Red Deer ATS 745 843 88% 795 868 92% 39 88 44%
Regina ATS/AA 851 899 95% 909 952 96% 30 49 NSS
Repulse Bay CARS 130 152 85% 130 152 85% 11 19 NSS
Resolute CARS 722 754 96% 773 797 97% 15 54 NSS
Sachs Harbour CARS 81 101 80% 84 101 83% 1 5 NSS
Sandspit NCA 862 873 99% 889 889 100% 0 0 NSS
Saskatoon ATS/AA 765 790 97% 797 804 99% 4 7 NSS
Slave Lake AWOS 739 771 96% 742 772 96% 19 55 NSS
Smithers ATS/NCA 403 407 99% 403 407 99% 11 16 NSS
Springbank CWO 431 460 94% 474 492 96% 17 37 NSS
Stony Rapids NCA 571 614 93% 579 628 92% 32 69 47%
Swift Current AWOS 423 466 91% 438 475 92% 17 56 29%
Taloyoak CARS 709 764 93% 723 778 93% 33 88 37%
Terrace ATS 845 873 97% 881 902 98% 14 21 NSS
Teslin CARS 183 183 100% 173 181 95% 3 4 NSS
The Pas CWO 795 848 94% 807 849 95% 15 24 NSS
Thompson ATS 776 810 96% 797 823 97% 13 26 NSS
Tofino CWO 336 354 95% 350 363 96% 15 26 NSS
Tuktoyaktuk CARS 386 401 96% 394 405 97% 27 43 NSS
Vancouver CWO 1578 1589 99% 1595 1595 100% 0 0 NSS
Victoria CWO 832 838 99% 848 848 100% 3 4 NSS
Victoria Harbour ATS 392 395 99% 397 400 99% 4 6 NSS
Watson Lake CARS 758 759 100% 761 761 100% 0 0 NSS
Whitecourt ATS 178 181 99% 185 189 98% 5 15 NSS
Whitehorse ATS 763 768 99% 770 774 99% 1 2 NSS
Williams Lake ATS 800 815 98% 801 815 98% 10 13 NSS
Winnipeg ATS/AA 741 810 91% 847 897 94% 11 51 22%
Yellowknife ATS 796 819 97% 823 837 98% 14 22 NSS
Yorkton CWO 562 591 95% 588 610 96% 15 55 NSS
*Note: NSS stands for Not Statistically Significant