TAF performance measurement results for NAV CANADA
Forecast Type: BOTH  Issue Time: 0000-2359Z  Hours into TAF:1-6   Month: May  Year: 2017
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
Attawapiskat NCA 179 208 86% 203 222 91% 24 41 NSS
Baie Comeau NCA 811 856 95% 910 946 96% 45 69 NSS
Bathurst NCH 485 539 90% 497 568 87% 17 201 9%
Big Trout Lake NCA 609 674 90% 653 699 94% 59 94 63%
Blanc Sablon NCH 715 822 87% 766 864 89% 122 203 60%
Buttonville NCH 729 812 90% 753 842 89% 33 177 19%
Cartwright NCH 563 660 85% 592 674 88% 116 375 31%
Chapleau NCH 327 369 89% 338 372 91% 24 69 34%
Charlottetown NCH 593 740 80% 759 863 88% 77 191 40%
Chibougamau-Chapais NCH 343 366 94% 362 389 93% 43 90 NSS
Churchill Falls NCA 714 788 91% 761 815 93% 85 148 57%
Deer Lake NCH 749 803 93% 888 904 98% 17 22 NSS
Dorval NCH 1506 1549 97% 1624 1631 100% 4 5 NSS
Dryden NCA 778 813 96% 836 852 98% 32 40 NSS
Earlton NCA 377 392 96% 394 404 97% 29 39 NSS
Fort Severn NCA 165 193 86% 208 231 90% 30 59 NSS
Fredericton NCA 738 811 91% 887 931 95% 43 68 NSS
Gander NCH 494 610 81% 715 860 83% 119 384 31%
Gaspé NCH 661 708 93% 709 766 93% 144 290 50%
Gatineau NCH 341 367 93% 368 387 95% 15 31 NSS
Geraldton NCH 744 867 86% 804 914 88% 41 122 34%
Gore Bay NCA 355 385 92% 374 398 94% 16 26 NSS
Halifax NCH 994 1125 88% 1269 1426 89% 103 407 25%
Hamilton NCH 772 829 93% 812 866 94% 31 128 24%
Havre St Pierre NCA 755 802 94% 779 827 94% 70 169 41%
Îles de la Madeleine NCH 432 494 87% 463 532 87% 55 171 32%
Inukjuak NCA 726 813 89% 767 845 91% 57 140 41%
Ivujivik NCH 131 151 87% 165 167 99% 21 22 NSS
Kapuskasing NCH 759 854 89% 788 876 90% 34 128 27%
Kenora NCH 781 825 95% 810 848 95% 40 75 NSS
Kingston NCH 556 582 95% 603 624 97% 26 50 NSS
Kuujjuaq NCH 752 791 95% 835 849 98% 10 16 NSS
Kuujjuarapik NCA 713 801 89% 723 802 90% 58 213 27%
La Grande IV NCA 188 207 91% 196 211 93% 8 13 NSS
La Grande Rivière NCH 712 794 90% 766 841 91% 50 124 40%
London NCH 784 842 93% 870 916 95% 58 95 61%
Marathon NCH 157 170 92% 157 170 92% 18 49 NSS
Mary's Harbour NCA 385 484 79% 395 496 80% 77 297 26%
Mirabel NCH 733 809 91% 906 924 98% 21 33 NSS
Moncton NCH 642 776 83% 963 1005 96% 52 87 60%
Mont-Joli NCH 774 855 91% 801 875 92% 75 233 32%
Moosonee NCA 752 840 90% 810 868 93% 86 166 52%
Muskoka NCA 568 582 98% 588 599 98% 23 53 NSS
Muskrat Dam NCA 343 397 87% 375 425 88% 20 44 NSS
Nain NCH 330 338 97% 295 303 97% 55 136 41%
Natashquan NCA 715 803 89% 749 823 91% 79 223 36%
North Bay NCA/NCH 695 808 86% 823 888 93% 60 130 46%
Ottawa NCH 1281 1412 91% 1584 1630 97% 31 44 NSS
Peterborough NCA 565 584 97% 587 604 97% 36 69 NSS
Pickle Lake NCH 375 388 97% 384 395 97% 11 29 NSS
Puvirnituq NCA 710 788 90% 756 828 91% 35 107 33%
Quaqtaq NCH 78 104 75% 96 123 78% 8 18 NSS
Quebec City NCH 831 889 93% 958 987 97% 30 48 NSS
Red Lake NCH 577 596 97% 621 622 100% 5 5 NSS
Roberval NCH 564 632 89% 608 653 93% 18 27 NSS
Rouyn-Noranda NCH 732 883 83% 844 963 88% 61 139 44%
Sable Island NCA 196 252 78% 206 256 80% 49 291 17%
Saint John NCH 599 693 86% 876 934 94% 91 150 61%
Sandy Lake NCA 360 390 92% 375 404 93% 16 37 NSS
Sarnia NCA 582 606 96% 630 639 99% 29 34 NSS
Sault Ste Marie NCH 757 838 90% 869 916 95% 28 63 45%
Schefferville NCA 688 790 87% 739 829 89% 91 190 48%
Sept-Îles NCH 711 759 94% 779 842 92% 67 170 40%
Sherbrooke NCA 445 456 97% 458 465 99% 7 9 NSS
Sioux Lookout NCH 785 834 94% 823 856 96% 30 55 NSS
St Anthony NCA 528 690 77% 566 735 77% 132 499 27%
St Catharines NCH 221 229 97% 222 230 96% 9 24 NSS
St Hubert NCA 850 879 97% 895 906 99% 16 31 NSS
St John's NCH 473 595 79% 722 934 77% 115 403 28%
Stephenville NCH 765 800 96% 828 855 97% 41 65 NSS
Sudbury NCH 749 843 89% 859 900 95% 24 101 24%
Sydney NCH 486 542 90% 558 660 85% 79 457 17%
Tasiujaq NCH 128 150 86% 135 154 87% 4 10 NSS
Thunder Bay NCH 830 864 96% 894 920 97% 43 66 NSS
Timmins NCH 713 823 87% 827 895 92% 51 107 48%
Toronto City Centre NCA 790 833 95% 898 935 96% 32 55 NSS
Toronto LBPI NCH 1478 1563 95% 1657 1722 96% 33 66 51%
Trois rivieres NCA 799 854 94% 834 883 94% 30 81 37%
Val-d'Or NCA/NCH 774 868 89% 943 996 95% 36 75 48%
Wabush NCA/NCH 723 761 95% 835 842 99% 32 44 NSS
Waskaganish NCH 98 108 91% 108 121 89% 5 25 NSS
Waterloo/Wellington NCA 782 826 95% 854 895 95% 39 82 48%
Wawa NCH 170 180 94% 172 180 95% 34 80 NSS
Wiarton NCH 333 359 93% 353 372 95% 19 34 NSS
Windsor NCH 866 904 96% 949 963 99% 38 42 NSS
Yarmouth NCH 587 683 86% 708 795 89% 128 362 35%
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 False Alarm (hours) Total Forecasts (hours) *Below Alternate False Alarm Ratio
Abbotsford NCH 799 834 96% 830 849 98% 11 15 NSS
Arctic Bay NCH N/A N/A N/A N/A N/A N/A N/A N/A NSS
Arviat NCA/NCH 600 701 86% 654 779 84% 62 288 21%
Baker Lake NCH 728 836 87% 819 927 88% 85 242 35%
Bella Bella NCA 382 425 90% 302 359 84% 70 158 45%
Brandon NCH 846 854 99% 859 859 100% 0 0 NSS
Buffalo Narrows NCH 410 411 100% 416 417 100% 11 11 NSS
Burwash NCA/NCH 789 811 97% 731 772 95% 33 57 NSS
Calgary Intl NCH 1641 1665 99% 1678 1686 100% 3 7 NSS
Cambridge Bay NCH 641 781 82% 714 852 84% 74 340 22%
Campbell River NCH 397 413 96% 415 428 97% 14 29 NSS
Cape Dorset NCA/NCH 731 823 89% 731 823 89% 74 207 36%
Castlegar NCH 399 399 100% 382 386 99% 7 15 NSS
Churchill NCH 568 678 84% 771 902 85% 108 284 38%
Clyde River NCA/NCH 657 792 83% 716 834 86% 99 228 43%
Coral Harbour NCH 696 776 90% 748 828 90% 65 158 41%
Cranbrook NCH 765 765 100% 766 766 100% 0 0 NSS
Dauphin NCA 849 861 99% 862 868 99% 8 9 NSS
Dawson City NCH 183 183 100% 170 177 96% 4 8 NSS
Dawson Creek NCA 401 403 99% 410 410 100% 1 1 NSS
Dease Lake NCA 371 372 100% 355 360 99% 13 17 NSS
Deline NCH 153 153 100% 155 156 100% 0 0 NSS
Edmonton Intl NCH 1527 1564 98% 1593 1608 99% 1 6 NSS
Edmonton Villeneuve NCA 796 817 97% 824 841 98% 9 13 NSS
Estevan NCH 387 437 89% 412 442 93% 5 11 NSS
Eureka NCH 365 391 93% 389 403 96% 7 28 NSS
Faro NCH 180 180 100% 180 180 100% 0 0 NSS
Fort Chipewyan NCA 559 565 99% 561 566 99% 8 9 NSS
Fort Good Hope NCH 163 176 92% 170 179 95% 3 5 NSS
Fort McMurray NCA 813 833 98% 856 857 100% 10 11 NSS
Fort McPherson NCH 142 146 97% 148 150 98% 4 6 NSS
Fort Nelson NCH 805 832 97% 843 850 99% 1 2 NSS
Fort Simpson NCH 782 801 98% 793 807 98% 12 26 NSS
Fort Smith NCH 791 797 99% 797 800 100% 1 1 NSS
Fort St John NCH 739 780 95% 774 804 96% 7 27 NSS
Gillam NCH 609 743 82% 729 846 86% 93 216 43%
Gjoa Haven NCA/NCH 696 870 80% 773 939 82% 95 219 43%
Grande Prairie NCH 850 856 99% 864 868 100% 9 10 NSS
Hall Beach NCA/NCH 515 685 75% 749 897 83% 107 252 42%
Hay River NCH 788 800 99% 797 803 99% 7 10 NSS
High Level NCA/NCH 749 753 99% 755 758 100% 10 13 NSS
Holman NCH 131 148 89% 142 161 88% 2 17 NSS
Igloolik NCH 72 93 77% 81 104 78% 17 67 NSS
Inuvik NCH 650 766 85% 786 884 89% 49 140 35%
Iqaluit NCH 710 820 87% 813 925 88% 75 178 42%
Island Lake NCH 413 436 95% 429 450 95% 6 24 NSS
Kamloops NCH 794 794 100% 784 789 99% 4 6 NSS
Kelowna NCA 840 843 100% 840 843 100% 3 3 NSS
Key Lake NCA 342 393 87% 380 404 94% 12 40 NSS
Kugaaruk NCH 160 174 92% 166 176 95% 21 25 NSS
Kugluktuk NCH 829 938 88% 863 964 90% 82 192 43%
La Ronge NCH 744 803 93% 767 821 93% 22 72 30%
Lethbridge NCA/NCH 864 865 100% 877 877 100% 2 2 NSS
Lloydminster NCA/NCH 788 874 90% 835 894 93% 12 24 NSS
Lutselk'e NCH 182 183 99% 186 187 99% 3 3 NSS
Lynn Lake NCA 730 807 90% 769 836 92% 41 93 44%
Mackenzie NCA 598 602 99% 601 603 100% 1 2 NSS
Masset NCH 173 193 89% 195 200 97% 20 31 NSS
Mayo NCH 763 763 100% 746 753 99% 8 10 NSS
Medicine Hat NCA/NCH 840 840 100% 842 842 100% 6 6 NSS
Nanaimo NCH 360 394 92% 365 396 92% 3 33 NSS
Norman Wells NCH 785 785 100% 786 786 100% 1 1 NSS
North Battleford NCA 819 842 97% 839 853 98% 9 15 NSS
Norway House NCA 761 825 92% 792 853 93% 40 73 54%
Old Crow NCH 285 286 100% 285 286 100% 5 6 NSS
Pangnirtung NCA/NCH 152 155 98% 96 114 85% 13 59 NSS
Paulatuk NCH 138 146 94% 143 159 90% 17 48 NSS
Peace River NCH 796 815 98% 812 830 98% 13 19 NSS
Penticton NCH 822 822 100% 822 822 100% 1 1 NSS
Pond Inlet NCA/NCH 822 873 94% 865 894 97% 21 28 NSS
Port Hardy NCH 817 877 93% 879 918 96% 21 48 NSS
Prince Albert NCH 811 865 94% 892 906 98% 9 24 NSS
Prince George NCA 874 900 97% 883 907 97% 10 21 NSS
Prince Rupert NCA 805 889 91% 913 956 95% 34 67 51%
Qikiqtarjuaq NCA/NCH 732 931 79% 502 747 67% 84 424 20%
Quesnel NCA 445 465 96% 445 465 96% 7 24 NSS
Rae Lake NCH 144 147 98% 146 148 99% 3 8 NSS
Rankin Inlet NCH 692 773 90% 765 872 88% 63 254 25%
Red Deer NCH 810 844 96% 849 862 99% 6 10 NSS
Regina NCH 852 875 97% 875 889 98% 10 22 NSS
Repulse Bay NCH 96 117 82% 104 123 84% 17 40 NSS
Resolute Bay NCH 675 781 86% 798 883 90% 51 149 34%
Sachs Harbour NCH 93 102 91% 99 113 87% 5 25 NSS
Sandspit NCA 800 844 95% 864 882 98% 7 16 NSS
Saskatoon NCH 913 937 97% 938 948 99% 2 8 NSS
Slave Lake NCA 725 754 96% 743 769 97% 18 31 NSS
Smithers NCA/NCH 391 400 98% 395 403 98% 7 14 NSS
Springbank NCA 481 488 99% 488 498 98% 2 10 NSS
Stony Rapids NCA 860 900 96% 879 911 96% 13 30 NSS
Swift Current NCA 845 924 91% 865 931 93% 13 28 47%
Taloyoak NCH 641 667 96% 664 688 97% 22 33 NSS
Terrace NCH 822 865 95% 755 801 94% 72 106 68%
Teslin NCH 180 180 100% 180 180 100% 0 0 NSS
The Pas NCH 725 827 88% 780 869 90% 28 73 38%
Thompson NCH 710 789 90% 829 908 91% 29 69 43%
Tofino NCH 327 364 90% 330 365 90% 25 61 NSS
Tuktoyaktuk NCH 245 313 78% 269 341 79% 32 142 22%
Vancouver NCH 1497 1502 100% 1543 1543 100% 0 0 NSS
Victoria NCH 808 825 98% 830 840 99% 6 9 NSS
Victoria Harbour NCH 395 400 99% 398 402 99% 7 8 NSS
Watson Lake NCH 749 775 97% 760 780 97% 1 7 NSS
Wekweeti NCA 371 390 95% 372 391 95% 14 41 NSS
Whitecourt NCH 178 179 99% 186 196 95% 13 18 NSS
Whitehorse NCH 794 794 100% 794 794 100% 0 0 NSS
Williams Lake NCH 842 845 100% 844 846 100% 2 10 NSS
Winnipeg NCH 837 849 99% 861 861 100% 0 0 NSS
Yellowknife NCH 794 844 94% 855 867 99% 11 17 NSS
Yorkton NCA 463 463 100% 463 463 100% 0 0 NSS
*Note: NSS stands for Not Statistically Significant
          N/A stands for Not Available