FPCN39 CWLW 071330 SMOKE CONTROL FORECAST FOR BC AND YUKON ISSUED BY THE MOUNTAIN WEATHER CENTRE OF ENVIRONMENT CANADA AT 7:00 AM PDT TUESDAY 7 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. 07-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 21/POOR 5 692 71/GOOD 10 1828 91/GOOD 20 1524 KAMLOOPS 20/POOR 5 775 99/GOOD 20 2091 75/GOOD 13 1727 OKANAGAN 28/POOR 6 1080 76/GOOD 12 1992 82/GOOD 18 1645 CASTLEGAR 24/POOR 12 727 83/GOOD 15 1950 99/GOOD 20 2093 CRANBROOK 16/POOR 8 1091 99/GOOD 17 2850 99/GOOD 20 3074 REVELSTOKE 33/FAIR 9 979 99/GOOD 20 2007 94/GOOD 18 2001 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m PENTICTON 0 0 W 22 SW 41 CRANBROOK W 22 W 41 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 26/POOR 6 1079 79/GOOD 11 2335 66/GOOD 10 1986 100 MILE 17/POOR 6 1191 86/GOOD 14 2607 81/GOOD 15 2311 WILLIAMS LAKE 17/POOR 6 1195 76/GOOD 12 2453 70/GOOD 11 2377 PUNTZI MTN 13/POOR 4 1084 58/GOOD 8 2343 72/GOOD 12 2298 PRINCE GEORGE 24/POOR 6 1154 93/GOOD 15 2509 71/GOOD 11 2157 BURNS LAKE 20/POOR 6 899 89/GOOD 14 2325 62/GOOD 9 1957 SMITHERS 23/POOR 6 968 80/GOOD 13 2084 58/GOOD 9 1797 MCBRIDE 18/POOR 6 994 69/GOOD 10 2263 58/GOOD 9 2010 CLEARWATER 15/POOR 7 547 77/GOOD 11 2102 71/GOOD 11 1855 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m PR. GEORGE NW 19 W 20 SMITHERS NW 17 NW 9 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 20/POOR 10 579 99/GOOD 26 2054 99/GOOD 20 2090 FT ST JOHN 49/FAIR 20 1133 99/GOOD 28 2570 99/GOOD 20 2624 WHITEHORSE 28/POOR 10 1079 98/GOOD 19 2309 71/GOOD 10 2324 DAWSON 32/POOR 10 834 99/GOOD 24 1998 93/GOOD 16 2070 WATSON LAKE 19/POOR 8 926 90/GOOD 22 1852 99/GOOD 22 2417 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m DEASE LAKE NW 37 NW 26 WATSON LAKE NW 43 NW 31 WHITEHORSE NW 35 NW 31 MAYO NW 44 NW 54 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 11 154 52/FAIR 20 478 56/GOOD 24 451 FRASER VALLEY 16/POOR 6 258 53/FAIR 11 966 57/GOOD 13 910 SRN VAN ISLD 12/POOR 5 121 50/FAIR 15 622 50/FAIR 22 430 CNTRL VAN ISLD 27/POOR 18 213 52/FAIR 12 840 58/GOOD 19 622 NRN VAN ISLD 15/POOR 8 150 71/GOOD 20 838 58/GOOD 19 622 TERRACE 18/POOR 6 490 50/FAIR 6 1745 62/GOOD 10 1488 STEWART 34/FAIR 9 558 38/FAIR 11 557 30/POOR 8 537 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m VANCOUVER 0 0 SW 17 W 35 SANDSPIT 0 0 S 15 SW 20 PORT HARDY SE 17 E 19 E 13 VENTILATION GUIDELINES: POOR: 0-33 FAIR: 34-54 GOOD: 55-100 VENTILATION INDICES NORMALLY DROP TO POOR AFTER SUNSET. END/WJW