FPCN39 CWLW 171330 SMOKE CONTROL FORECAST FOR BC AND YUKON ISSUED BY THE MOUNTAIN WEATHER CENTRE OF ENVIRONMENT CANADA AT 7:00 AM PDT FRIDAY 17 AUGUST 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. 17-August-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 35/FAIR 15 581 89/GOOD 16 1795 99/GOOD 16 2211 KAMLOOPS 31/POOR 14 651 99/GOOD 21 2098 99/GOOD 20 2964 OKANAGAN 17/POOR 8 646 89/GOOD 10 2935 99/GOOD 19 2765 CASTLEGAR 18/POOR 17 599 99/GOOD 18 3789 99/GOOD 14 2912 CRANBROOK 31/POOR 16 1207 99/GOOD 23 4275 99/GOOD 23 3566 REVELSTOKE 24/POOR 21 580 88/GOOD 3 3330 99/GOOD 14 2653 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m PENTICTON 0 0 S 24 S 56 CRANBROOK S 22 SW 22 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 25/POOR 13 785 78/GOOD 9 2658 99/GOOD 17 2527 100 MILE 18/POOR 8 1152 99/GOOD 16 3189 87/GOOD 13 2761 WILLIAMS LAKE 23/POOR 14 1130 75/GOOD 10 2706 85/GOOD 13 2674 PUNTZI MTN 25/POOR 15 1118 99/GOOD 21 3154 99/GOOD 19 3106 PRINCE GEORGE 36/FAIR 22 943 78/GOOD 12 2280 99/GOOD 19 2637 BURNS LAKE 48/FAIR 25 890 99/GOOD 18 2854 99/GOOD 21 2420 SMITHERS 54/GOOD 17 1126 94/GOOD 15 2389 95/GOOD 16 2291 MCBRIDE 25/POOR 22 872 99/GOOD 14 3307 80/GOOD 12 1258 CLEARWATER 15/POOR 10 506 97/GOOD 15 2372 93/GOOD 12 2654 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m PR. GEORGE S 33 S 61 SMITHERS SW 20 S 28 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 16/POOR 10 508 81/GOOD 22 1312 98/GOOD 14 2548 FT ST JOHN 25/POOR 21 837 88/GOOD 4 2849 99/GOOD 24 2209 WHITEHORSE 40/FAIR 18 1068 61/GOOD 6 2808 69/GOOD 11 1068 DAWSON 13/POOR 8 456 67/GOOD 9 2002 82/GOOD 13 1996 WATSON LAKE 21/POOR 19 805 71/GOOD 17 1649 90/GOOD 14 1344 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m DEASE LAKE E 9 S 17 WATSON LAKE W 11 SW 28 WHITEHORSE SW 26 S 24 MAYO W 28 SW 41 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 22/POOR 7 355 18/POOR 5 349 44/FAIR 10 760 FRASER VALLEY 26/POOR 7 539 53/FAIR 13 818 77/GOOD 15 1318 SRN VAN ISLD 28/POOR 15 262 28/POOR 13 305 42/FAIR 15 488 CNTRL VAN ISLD 19/POOR 9 230 30/POOR 5 862 43/FAIR 7 1051 NRN VAN ISLD 30/POOR 23 204 68/GOOD 15 1025 52/FAIR 12 825 TERRACE 42/FAIR 9 979 83/GOOD 13 1867 60/GOOD 10 1440 STEWART 35/FAIR 9 587 38/FAIR 10 610 46/FAIR 10 801 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m VANCOUVER S 11 SW 22 S 44 SANDSPIT SW 20 S 31 S 46 PORT HARDY S 31 S 24 SE 30 VENTILATION GUIDELINES: POOR: 0-33 FAIR: 34-54 GOOD: 55-100 VENTILATION INDICES NORMALLY DROP TO POOR AFTER SUNSET. END/LEC