FPCN39 CWLW 011330 SMOKE CONTROL FORECAST FOR BC AND YUKON ISSUED BY THE MOUNTAIN WEATHER CENTRE OF ENVIRONMENT CANADA AT 7:00 AM PDT WEDNESDAY 1 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. 01-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 25/POOR 12 478 50/FAIR 14 882 52/FAIR 15 872 KAMLOOPS 27/POOR 17 546 52/FAIR 13 1100 59/GOOD 18 1004 OKANAGAN 15/POOR 6 653 84/GOOD 18 1691 60/GOOD 11 1570 CASTLEGAR 19/POOR 14 631 76/GOOD 12 2022 89/GOOD 17 1948 CRANBROOK 28/POOR 12 1245 99/GOOD 19 2650 99/GOOD 22 2608 REVELSTOKE 29/POOR 7 995 84/GOOD 13 2169 21/POOR 5 896 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m PENTICTON 0 0 S 31 S 31 CRANBROOK SW 22 SW 20 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 10/POOR 3 608 71/GOOD 18 1445 81/GOOD 15 1910 100 MILE 16/POOR 12 1047 79/GOOD 25 1736 91/GOOD 22 2140 WILLIAMS LAKE 13/POOR 15 994 77/GOOD 20 1889 84/GOOD 16 2323 PUNTZI MTN 27/POOR 15 1144 57/GOOD 12 1834 86/GOOD 15 2468 PRINCE GEORGE 12/POOR 10 751 76/GOOD 20 1614 76/GOOD 16 1845 BURNS LAKE 35/FAIR 11 1033 45/FAIR 15 1054 63/GOOD 10 1870 SMITHERS 26/POOR 8 927 53/FAIR 15 1192 47/FAIR 6 1882 MCBRIDE 30/POOR 14 1021 86/GOOD 15 2270 52/FAIR 12 1537 CLEARWATER 27/POOR 17 599 70/GOOD 17 1319 44/FAIR 15 887 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m PR. GEORGE SW 15 SW 26 SMITHERS S 26 S 33 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 10/POOR 6 419 59/GOOD 8 1865 52/FAIR 17 949 FT ST JOHN 26/POOR 20 861 92/GOOD 13 2766 99/GOOD 24 2478 WHITEHORSE 35/FAIR 7 1450 49/FAIR 8 1799 85/GOOD 15 2219 DAWSON 26/POOR 14 610 86/GOOD 10 2674 77/GOOD 9 2450 WATSON LAKE 13/POOR 8 770 50/FAIR 8 1835 47/FAIR 10 1503 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m DEASE LAKE S 24 S 28 WATSON LAKE S 9 SW 17 WHITEHORSE S 19 S 31 MAYO 0 0 S 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 18/POOR 12 145 33/POOR 10 479 31/POOR 26 169 FRASER VALLEY 10/POOR 5 109 37/FAIR 7 869 12/POOR 15 92 SRN VAN ISLD 11/POOR 5 95 24/POOR 9 341 15/POOR 17 89 CNTRL VAN ISLD 13/POOR 7 120 35/FAIR 12 470 27/POOR 23 178 NRN VAN ISLD 24/POOR 18 187 27/POOR 18 218 20/POOR 9 256 TERRACE 25/POOR 11 493 26/POOR 12 496 37/FAIR 4 1678 STEWART 26/POOR 8 406 28/POOR 9 408 30/POOR 5 813 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m VANCOUVER S 15 S 24 SW 28 SANDSPIT S 39 S 22 SW 28 PORT HARDY S 28 SW 26 SW 24 VENTILATION GUIDELINES: POOR: 0-33 FAIR: 34-54 GOOD: 55-100 VENTILATION INDICES NORMALLY DROP TO POOR AFTER SUNSET. END/PJS