FPCN39 CWLW 181430 SMOKE CONTROL FORECAST FOR BC AND YUKON ISSUED BY THE MOUNTAIN WEATHER CENTRE OF ENVIRONMENT CANADA AT 7:00 AM PST TUESDAY 18 DECEMBER 2001 FOR TODAY. MIXING HEIGHTS IN METRES ABOVE SEA LEVEL. AVERAGE WINDS IN KM/H. SUBTRACT 20 FROM THE VENTILATION INDEX IN VALLEYS IF THE MIXING HEIGHT IS BELOW THE HEIGHT OF LOCAL MOUNTAINS OR HILLS. 18-December-2001 SOUTHERN INTERIOR TODAY TOMORROW 7:00 AM 4:00 PM 4:00 PM VI WND MXG HT VI WND MXG HT VI WND MXG HT KM/H M KM/H M KM/H M FRASER CANYON 51/FAIR 23 633 19/POOR 22 313 46/FAIR 13 852 KAMLOOPS 41/FAIR 28 586 40/FAIR 32 547 44/FAIR 17 780 OKANAGAN 50/FAIR 30 756 50/FAIR 30 756 42/FAIR 11 1095 CASTLEGAR 24/POOR 22 627 23/POOR 19 631 32/POOR 9 1001 CRANBROOK 21/POOR 13 1113 48/FAIR 19 1387 59/GOOD 15 1732 REVELSTOKE 36/FAIR 20 717 19/POOR 21 533 25/POOR 10 745 GOLDEN 40/FAIR 16 1191 16/POOR 18 858 14/POOR 16 837 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m PENTICTON S 9 S 83 S 89 CRANBROOK SW 35 SW 56 CENTRAL INTERIOR TODAY TOMORROW 7:00 AM 4:00 PM 4:00 PM VI WND MXG HT VI WND MXG HT VI WND MXG HT KM/H M KM/H M KM/H M QUESNEL 61/GOOD 44 825 57/GOOD 37 845 30/POOR 22 729 100 MILE 67/GOOD 41 1296 59/GOOD 39 1240 32/POOR 17 1204 WILLIAMS LAKE 60/GOOD 40 1242 54/FAIR 34 1240 24/POOR 19 1086 PUNTZI MTN 25/POOR 38 990 21/POOR 26 994 37/FAIR 26 1135 PRINCE GEORGE 31/POOR 41 800 58/GOOD 38 991 22/POOR 28 781 BURNS LAKE 35/FAIR 28 902 17/POOR 28 766 31/POOR 25 889 SMITHERS 42/FAIR 25 799 17/POOR 20 594 16/POOR 20 584 MCBRIDE 47/FAIR 29 1013 55/GOOD 30 1080 49/FAIR 18 1214 CLEARWATER 45/FAIR 26 696 15/POOR 26 439 39/FAIR 14 842 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m PR. GEORGE S 85 SW 91 SMITHERS S 50 S 59 NORTHERN BC/YUKON TODAY TOMORROW 7:00 AM 4:00 PM 4:00 PM VI WND MXG HT VI WND MXG HT VI WND MXG HT KM/H M KM/H M KM/H M FORT NELSON 12/POOR 19 406 11/POOR 6 429 12/POOR 24 407 FT ST JOHN 12/POOR 18 725 17/POOR 29 744 12/POOR 35 711 WHITEHORSE 12/POOR 20 730 10/POOR 10 716 12/POOR 26 722 DAWSON 10/POOR 24 376 9/POOR 8 373 13/POOR 40 387 WATSON LAKE 11/POOR 6 746 10/POOR 11 705 9/POOR 8 697 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m DEASE LAKE S 52 SW 35 WATSON LAKE SW 48 SW 43 WHITEHORSE S 33 S 37 MAYO 0 0 SW 11 COAST TODAY TOMORROW 7:00 AM 4:00 PM 4:00 PM VI WND MXG HT VI WND MXG HT VI WND MXG HT KM/H M KM/H M KM/H M VANCOUVER 87/GOOD 54 441 88/GOOD 49 502 22/POOR 11 227 FRASER VALLEY 30/POOR 33 181 48/FAIR 43 258 14/POOR 16 117 SQUAMISH 53/FAIR 26 438 34/FAIR 25 252 21/POOR 6 426 SRN VAN ISLD 88/GOOD 50 508 90/GOOD 51 519 29/POOR 11 383 CNTRL VAN ISLD 84/GOOD 48 482 83/GOOD 43 524 36/FAIR 13 453 NRN VAN ISLD 56/GOOD 53 224 78/GOOD 38 522 11/POOR 23 36 TERRACE 59/GOOD 25 692 44/FAIR 25 517 25/POOR 17 393 STEWART 21/POOR 21 115 14/POOR 21 48 10/POOR 19 17 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m VANCOUVER S 100 S 100 SW 109 SANDSPIT S 63 S 69 S 76 PORT HARDY N 26 NW 19 SE 11 VENTILATION GUIDELINES: POOR: 0-33 FAIR: 34-54 GOOD: 55-100 VENTILATION INDICES NORMALLY DROP TO POOR AFTER SUNSET. END/MtnWC