FPCN39 CWLW 311330 SMOKE CONTROL FORECAST FOR BC AND YUKON ISSUED BY THE MOUNTAIN WEATHER CENTRE OF ENVIRONMENT CANADA AT 7:00 AM PDT FRIDAY 31 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. 31-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 63/GOOD 18 958 98/GOOD 23 1539 99/GOOD 23 1731 KAMLOOPS 66/GOOD 20 1051 99/GOOD 29 1896 99/GOOD 33 2258 OKANAGAN 42/FAIR 11 1091 99/GOOD 17 2530 99/GOOD 27 2540 CASTLEGAR 32/POOR 16 781 99/GOOD 18 2939 99/GOOD 21 2583 CRANBROOK 14/POOR 8 1064 99/GOOD 23 3697 99/GOOD 29 2795 REVELSTOKE 41/FAIR 10 1121 73/GOOD 13 1760 99/GOOD 21 2086 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m PENTICTON 0 0 W 41 SW 20 CRANBROOK SW 35 SW 28 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 24/POOR 23 672 99/GOOD 25 2448 99/GOOD 33 2072 100 MILE 53/FAIR 24 1359 99/GOOD 30 2813 99/GOOD 34 2976 WILLIAMS LAKE 24/POOR 24 1060 99/GOOD 26 2983 99/GOOD 31 3006 PUNTZI MTN 38/FAIR 21 1199 99/GOOD 27 2501 99/GOOD 39 2756 PRINCE GEORGE 52/FAIR 28 1037 59/GOOD 18 1344 99/GOOD 34 1965 BURNS LAKE 67/GOOD 23 1172 96/GOOD 22 1883 99/GOOD 42 1484 SMITHERS 50/FAIR 17 1064 84/GOOD 20 1638 57/GOOD 25 970 MCBRIDE 43/FAIR 18 1136 99/GOOD 20 2380 77/GOOD 18 1769 CLEARWATER 39/FAIR 19 723 99/GOOD 21 2024 94/GOOD 20 1801 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m PR. GEORGE SW 26 SW 30 SMITHERS SW 43 SW 54 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 14/POOR 8 486 87/GOOD 16 1889 99/GOOD 23 2117 FT ST JOHN 42/FAIR 20 1038 99/GOOD 30 2696 99/GOOD 41 3140 WHITEHORSE 36/FAIR 17 1024 70/GOOD 12 2011 68/GOOD 10 2203 DAWSON 43/FAIR 22 699 86/GOOD 12 2297 72/GOOD 21 1153 WATSON LAKE 30/POOR 14 987 71/GOOD 9 2490 73/GOOD 11 2228 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m DEASE LAKE S 37 SW 37 WATSON LAKE W 26 SW 26 WHITEHORSE S 39 S 35 MAYO S 20 S 30 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 37/FAIR 13 438 37/FAIR 12 488 66/GOOD 21 684 FRASER VALLEY 35/FAIR 14 433 60/GOOD 13 979 88/GOOD 22 1175 SRN VAN ISLD 40/FAIR 17 395 36/FAIR 15 378 66/GOOD 24 611 CNTRL VAN ISLD 45/FAIR 16 503 69/GOOD 18 881 75/GOOD 23 791 NRN VAN ISLD 28/POOR 18 224 93/GOOD 35 810 69/GOOD 31 522 TERRACE 42/FAIR 13 752 69/GOOD 20 985 80/GOOD 25 1017 STEWART 39/FAIR 13 485 65/GOOD 20 707 90/GOOD 25 507 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m VANCOUVER 0 0 SW 33 SW 48 SANDSPIT SW 24 SW 33 SW 48 PORT HARDY S 39 S 43 SW 43 VENTILATION GUIDELINES: POOR: 0-33 FAIR: 34-54 GOOD: 55-100 VENTILATION INDICES NORMALLY DROP TO POOR AFTER SUNSET. END/