TAF performance measurement results for TAFs issued during July 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 965 1026 94% 1009 1057 95% 34 53 NSS
Bathurst CWO 577 623 93% 596 634 94% 25 48 NSS
Big Trout Lake AWOS 705 949 74% 771 989 78% 64 171 37%
Blanc Sablon CWO 660 748 88% 714 802 89% 123 325 38%
Buttonville CWO 852 893 95% 860 895 96% 17 27 NSS
Cartwright CWO 757 814 93% 746 804 93% 58 177 33%
Chapleau CWO 381 383 99% 381 383 99% 10 18 NSS
Charlottetown ATS 793 911 87% 915 989 93% 43 99 43%
Chibougamau-Chapais CWO 404 433 93% 424 442 96% 4 14 NSS
Churchill Falls AWOS 785 867 91% 823 883 93% 30 92 32%
Deer Lake ATS 858 899 95% 944 974 97% 8 25 NSS
Dorval CWO 1589 1590 100% 1598 1598 100% 0 0 NSS
Dryden NCA 868 928 93% 952 973 98% 9 13 NSS
Earlton CWO 416 422 98% 422 427 99% 11 14 NSS
Fredericton NCA 817 918 89% 879 960 92% 33 85 39%
Gander CWO 638 824 77% 894 1016 88% 32 150 21%
Gaspé CWO 831 901 92% 860 911 94% 82 123 67%
Gatineau ATS 420 421 100% 420 421 100% 6 6 NSS
Geraldton CWO 907 1017 89% 933 1045 89% 42 97 43%
Gore Bay NCA 425 438 97% 429 439 98% 9 14 NSS
Halifax ATS 1140 1321 86% 1362 1544 88% 78 284 27%
Hamilton CWO 867 889 97% 897 915 98% 10 15 NSS
Havre St Pierre NCA 745 857 87% 778 893 87% 97 189 51%
Îles de la Madeleine ATS 504 551 91% 523 575 91% 41 145 28%
Inukjuak AWOS/CARS 701 812 86% 774 884 88% 71 144 49%
Ivujivik CARS 132 151 87% 140 154 91% 19 35 NSS
Kapuskasing CWO 937 989 95% 964 1007 96% 52 66 NSS
Kenora ATS 891 953 93% 927 976 95% 7 31 NSS
Kingston ATS 596 601 99% 603 610 99% 4 10 NSS
Kuujjuaq ATS 813 861 94% 883 933 95% 22 49 45%
Kuujjuarapik CWO 677 796 85% 757 901 84% 66 195 34%
La Grande IV AWOS/CWO 236 259 91% 258 273 94% 7 13 NSS
La Grande Rivière ATS 735 821 89% 779 891 87% 40 150 27%
London ATS 900 962 94% 945 988 96% 20 37 NSS
Marathon CWO 146 180 81% 146 180 81% 12 46 NSS
Mary's Harbour AWOS/CWO 488 515 95% 515 551 93% 31 136 23%
Mirabel ATS 883 886 100% 900 901 100% 1 1 NSS
Moncton CWO 815 938 87% 969 1045 93% 33 75 44%
Mont-Joli ATS 803 881 91% 820 899 91% 54 121 45%
Moosonee NCA 417 427 98% 424 430 98% 11 16 NSS
Muskoka NCA 575 595 97% 586 599 98% 12 15 NSS
Nain CWO 382 406 94% 335 370 91% 16 95 17%
Natashquan AWOS 692 810 85% 733 839 87% 77 206 38%
North Bay CWO 925 994 93% 968 1018 95% 29 76 38%
Ottawa CWO 1559 1571 99% 1598 1598 100% 1 1 NSS
Peterborough NCA 577 594 97% 580 594 98% 13 16 NSS
Pickle Lake CWO 419 451 93% 426 453 94% 10 19 NSS
Puvirnituq CARS 166 198 84% 173 210 82% 9 30 NSS
Quaqtaq CARS 90 93 97% 96 103 93% 9 33 NSS
Quebec City ATS 880 956 92% 963 1009 95% 42 63 NSS
Red Lake CWO 637 650 98% 654 664 98% 4 7 NSS
Roberval CWO 631 640 99% 635 646 98% 1 13 NSS
Rouyn-Noranda ATS 914 952 96% 933 969 96% 34 41 NSS
Sable Island AWOS 205 237 86% 258 286 90% 80 274 29%
Saint John ATS 668 805 83% 815 962 85% 76 241 32%
Sarnia NCA 560 567 99% 574 580 99% 3 4 NSS
Sault Ste Marie ATS 804 837 96% 842 867 97% 34 56 NSS
Schefferville AWOS 791 858 92% 840 889 94% 31 69 44%
Sept-Îles ATS 795 850 94% 831 886 94% 42 101 41%
Sherbrooke NCA 500 507 99% 512 515 99% 14 15 NSS
Sioux Lookout ATS 882 944 93% 917 956 96% 10 20 NSS
St Anthony NCA 649 786 83% 712 860 83% 130 333 39%
St Catharines ATS 201 202 99% 203 203 100% 1 1 NSS
St Hubert NCA 875 890 98% 891 899 99% 7 8 NSS
St John's CWO 592 724 82% 918 1004 91% 116 327 35%
Stephenville CWO 848 911 93% 931 984 95% 49 103 47%
Sudbury CWO 867 898 97% 890 910 98% 12 34 NSS
Sydney CWO 615 732 84% 745 867 86% 74 278 27%
Tasiujaq CARS 144 145 99% 146 147 99% 0 0 NSS
Thunder Bay ATS/AA 800 865 93% 848 907 94% 21 60 34%
Timmins ATS 859 895 96% 905 931 97% 9 16 NSS
Toronto City Centre NCA 794 807 98% 807 817 99% 8 11 NSS
Toronto LBPI CWO 1594 1635 98% 1658 1661 100% 6 7 NSS
Val-d'Or AWOS/ATS 882 937 94% 944 971 97% 18 24 NSS
Wabush ATS 811 853 95% 874 897 97% 13 21 NSS
Waskaganish CARS 93 93 100% 98 98 100% 2 2 NSS
Waterloo/Wellington NCA 607 617 98% 624 631 99% 7 13 NSS
Wawa CWO 201 238 84% 198 233 85% 16 68 24%
Wiarton CWO 386 398 97% 388 399 97% 10 18 NSS
Windsor CWO 883 895 99% 904 911 99% 11 13 NSS
Yarmouth CWO 532 604 88% 582 679 86% 106 440 24%
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 823 872 94% 856 883 97% 3 7 NSS
Arctic Bay AWS 110 115 96% 118 118 100% **N/A N/A N/A
Arviat AWOS/CARS 781 886 88% 796 906 88% 54 183 30%
Baker Lake CARS 833 850 98% 834 853 98% 12 38 NSS
Bella Bella AWOS 377 464 81% 289 426 68% 38 136 28%
Brandon ATS 912 954 96% 941 968 97% 11 33 NSS
Buffalo Narrows CWO 390 421 93% 393 423 93% 6 23 NSS
Burwash AWOS/CARS 809 817 99% 694 742 94% 56 86 65%
Calgary Intl CWO 1677 1704 98% 1758 1758 100% 0 0 NSS
Cambridge Bay CARS 734 780 94% 771 815 95% 37 63 NSS
Campbell River ATS 368 381 96% 387 391 99% 2 9 NSS
Cape Dorset AWOS/CARS 755 841 90% 758 841 90% 38 106 36%
Castlegar ATS 414 414 100% 406 407 100% 8 9 NSS
Churchill ATS/AA 788 884 89% 828 962 86% 35 137 25%
Clyde River AWOS/CARS 410 582 70% 433 608 71% 71 424 17%
Coral Harbour CARS 842 862 98% 846 868 98% 7 13 NSS
Cranbrook ATS 835 839 99% 839 840 100% 0 0 NSS
Dauphin NCA 893 897 100% 901 904 100% 6 7 NSS
Dawson City CARS 414 418 99% 395 409 96% 12 21 NSS
Dawson Creek NCA 439 455 97% 445 457 97% 11 16 NSS
Deline CARS 137 143 96% 137 143 96% 6 14 NSS
Edmonton Intl CWO 1670 1745 96% 1835 1838 100% 2 2 NSS
Edmonton Muni AWOS 1034 1113 93% 1149 1191 96% 21 29 NSS
Eureka CWO 406 406 100% 406 406 100% 0 0 NSS
Faro CARS 380 383 99% 361 370 98% 15 17 NSS
Fort Chipewyan NCA 206 208 99% 207 208 100% 5 5 NSS
Fort Good Hope CARS 146 151 97% 150 153 99% 6 9 NSS
Fort McMurray AWOS 890 952 93% 959 994 96% 10 30 NSS
Fort McPherson CARS 149 151 99% 149 151 99% 0 4 NSS
Fort Nelson ATS 833 862 97% 868 878 99% 2 9 NSS
Fort Simpson CARS 756 811 93% 776 822 94% 23 51 NSS
Fort Smith CARS 883 920 96% 899 925 97% 12 24 NSS
Fort St John ATS 839 884 95% 884 910 97% 7 26 NSS
Gillam CWO 974 1038 94% 1023 1068 96% 20 49 NSS
Gjoa Haven AWOS/CARS 737 789 93% 754 806 94% 23 42 NSS
Grande Prairie ATS 845 870 97% 889 910 98% 1 10 NSS
Hall Beach AWOS/CARS 770 797 97% 777 806 96% 18 39 NSS
Hay River CARS 804 864 93% 857 887 97% 19 26 NSS
High Level ATS 853 913 93% 871 932 93% 12 46 27%
Holman CARS 157 160 98% 158 163 97% 5 7 NSS
Igloolik CARS 162 171 95% 163 171 95% 16 23 NSS
Inuvik ATS/AA 777 846 92% 848 895 95% 12 36 NSS
Iqaluit ATS/AA 777 830 94% 866 908 95% 29 52 NSS
Island Lake CWO 935 1007 93% 1007 1045 96% 19 35 NSS
Kamloops ATS 862 867 99% 850 863 98% 1 5 NSS
Kelowna NCA 865 865 100% 865 865 100% 3 3 NSS
Kugaaruk CARS 191 194 98% 194 196 99% 4 4 NSS
Kugluktuk CARS 759 786 97% 772 797 97% 9 31 NSS
La Ronge ATS 892 933 96% 904 950 95% 29 57 NSS
Lethbridge ATS/AWOS 987 1004 98% 1002 1013 99% 2 4 NSS
Lloydminster ATS/NCA 905 988 92% 945 1015 93% 50 100 51%
Lutselk'e CARS 159 159 100% 159 159 100% 0 0 NSS
Lynn Lake NCA 805 882 91% 839 899 93% 43 79 54%
Mackenzie NCA 638 646 99% 638 646 99% 7 10 NSS
Masset CWO 168 205 82% 197 219 90% 14 29 NSS
Mayo CARS 808 822 98% 769 796 97% 28 37 NSS
Medicine Hat ATS/NCA 887 894 99% 890 895 99% 15 16 NSS
Nanaimo ATS 407 422 96% 408 423 96% 3 11 NSS
Norman Wells ATS 814 833 98% 822 837 98% 15 20 NSS
North Battleford NCA 911 957 95% 944 976 97% 26 48 NSS
Norway House NCA 917 958 96% 957 978 98% 33 37 NSS
Old Crow CARS 400 400 100% 397 397 100% 9 10 NSS
Pangnirtung LWIS/CARS 160 167 96% 117 125 93% 14 51 NSS
Paulatuk CARS 134 142 95% 137 146 93% 8 32 NSS
Peace River ATS 855 945 91% 910 989 92% 23 47 50%
Penticton ATS 823 823 100% 823 823 100% 0 0 NSS
Pond Inlet AWOS/CARS 819 854 96% 819 854 96% 12 37 NSS
Port Hardy ATS 805 887 91% 881 951 93% 45 85 54%
Prince Albert ATS 867 923 94% 928 957 97% 14 29 NSS
Prince George NCA 846 932 91% 894 957 93% 24 52 45%
Prince Rupert NCA 745 869 86% 870 971 90% 56 90 62%
Qikiqtarjuaq AWOS/CARS 579 710 82% 468 589 79% 89 390 23%
Quesnel NCA 490 514 95% 484 511 95% 19 36 NSS
Rae Lake CARS 152 152 100% 152 152 100% 2 2 NSS
Rankin Inlet ATS 785 808 97% 802 826 97% 24 64 NSS
Red Deer ATS 940 994 95% 973 1025 95% 20 44 45%
Regina ATS/AA 963 992 97% 1002 1016 99% 4 7 NSS
Repulse Bay CARS 124 132 94% 128 136 94% 5 7 NSS
Resolute CARS 812 850 96% 835 865 97% 16 48 NSS
Sachs Harbour CARS 56 71 78% 60 77 77% 9 34 NSS
Sandspit NCA 860 906 95% 931 950 98% 10 17 NSS
Saskatoon ATS/AA 936 966 97% 1010 1010 100% 1 1 NSS
Slave Lake NCA 899 921 98% 945 956 99% 8 9 NSS
Smithers ATS/NCA 385 391 98% 385 391 98% 6 9 NSS
Springbank CWO 512 522 98% 532 536 99% 8 10 NSS
Stony Rapids NCA 628 644 97% 637 645 99% 17 20 NSS
Swift Current NCA 446 473 94% 454 478 95% 5 14 NSS
Taloyoak CARS 816 818 100% 820 820 100% 4 4 NSS
Terrace ATS 863 875 99% 902 904 100% 6 6 NSS
Teslin CARS 389 389 100% 321 372 86% 4 18 NSS
The Pas CWO 924 954 97% 943 970 97% 26 34 NSS
Thompson ATS 868 951 91% 977 1024 95% 14 42 34%
Tofino CWO 347 377 92% 353 382 93% 23 57 NSS
Tuktoyaktuk CARS 310 347 89% 322 360 89% 23 91 25%
Vancouver CWO 1582 1613 98% 1620 1620 100% 0 0 NSS
Victoria CWO 816 821 99% 823 823 100% 0 0 NSS
Victoria Harbour ATS 382 403 95% 395 408 97% 2 5 NSS
Watson Lake CARS 834 838 100% 843 843 100% 1 1 NSS
Whitecourt ATS 179 198 90% 190 208 91% 3 18 NSS
Whitehorse ATS 807 812 99% 812 815 100% 2 2 NSS
Williams Lake ATS 866 886 98% 874 892 98% 16 22 NSS
Winnipeg ATS/AA 879 919 96% 948 949 100% 2 3 NSS
Yellowknife ATS 818 835 98% 839 843 99% 5 6 NSS
Yorkton CWO 663 677 98% 678 687 99% 5 6 NSS
*Note: NSS stands for Not Statistically Significant
**Note: N/A stands for Not Applicable