FPCN39 CWLW 261332 SMOKE CONTROL FORECAST FOR BC AND YUKON ISSUED BY THE MOUNTAIN WEATHER CENTRE OF ENVIRONMENT CANADA AT 7:00 AM PDT THURSDAY 26 APRIL 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. 26-April-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 15/POOR 18 286 89/GOOD 18 1611 72/GOOD 17 1204 KAMLOOPS 13/POOR 8 448 99/GOOD 21 2003 99/GOOD 23 2076 OKANAGAN 20/POOR 19 565 99/GOOD 17 2354 92/GOOD 16 2121 CASTLEGAR 16/POOR 14 586 71/GOOD 9 2295 61/GOOD 7 2295 CRANBROOK 10/POOR 6 968 75/GOOD 9 2939 82/GOOD 14 2443 REVELSTOKE 22/POOR 16 592 66/GOOD 10 1874 79/GOOD 11 2243 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m PENTICTON 0 0 S 41 SW 43 CRANBROOK SW 24 W 37 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 35/FAIR 13 944 99/GOOD 23 2720 99/GOOD 24 2456 100 MILE 24/POOR 20 1086 99/GOOD 22 2602 99/GOOD 24 2555 WILLIAMS LAKE 24/POOR 16 1118 99/GOOD 20 2654 99/GOOD 25 2920 PUNTZI MTN 18/POOR 11 1058 99/GOOD 29 2703 99/GOOD 24 2791 PRINCE GEORGE 39/FAIR 12 1202 99/GOOD 24 2945 99/GOOD 21 2975 BURNS LAKE 26/POOR 17 733 73/GOOD 17 1533 94/GOOD 20 1943 SMITHERS 26/POOR 20 682 75/GOOD 18 1523 82/GOOD 17 1761 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m PR. GEORGE SW 33 SW 31 SMITHERS SW 28 S 31 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 33/FAIR 20 627 99/GOOD 16 2484 99/GOOD 23 3100 FT ST JOHN 17/POOR 10 849 95/GOOD 18 2288 99/GOOD 21 3175 WHITEHORSE 45/FAIR 16 1184 99/GOOD 23 2187 99/GOOD 23 2391 DAWSON 9/POOR 2 412 96/GOOD 12 2777 48/FAIR 18 845 WATSON LAKE 16/POOR 6 900 99/GOOD 25 2244 99/GOOD 23 2503 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m DEASE LAKE S 15 S 22 WATSON LAKE W 9 0 0 WHITEHORSE S 19 S 43 MAYO 0 0 SW 9 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 12/POOR 15 33 56/GOOD 12 902 65/GOOD 14 1002 FRASER VALLEY 14/POOR 14 129 59/GOOD 12 1051 68/GOOD 15 1058 SRN VAN ISLD 10/POOR 13 38 56/GOOD 12 919 78/GOOD 19 1019 CNTRL VAN ISLD 10/POOR 11 45 56/GOOD 12 924 63/GOOD 13 1024 NRN VAN ISLD 25/POOR 20 177 87/GOOD 30 808 78/GOOD 19 1022 TERRACE 24/POOR 17 380 48/FAIR 18 697 64/GOOD 15 1117 STEWART 22/POOR 20 126 16/POOR 18 78 69/GOOD 17 907 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m VANCOUVER S 19 SW 37 SW 54 SANDSPIT S 43 S 43 SW 57 PORT HARDY S 48 S 48 S 54 VENTILLATION GUIDLINES: POOR: 0-33 FAIR: 34-54 GOOD: 55-100 VENTILATION INDICES NORMALLY DROP TO POOR AFTER SUNSET. END/