FPCN39 CWLW 241331 SMOKE CONTROL FORECAST FOR BC AND YUKON ISSUED BY THE MOUNTAIN WEATHER CENTRE OF ENVIRONMENT CANADA AT 7:00 AM PDT TUESDAY 24 JULY 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. 24-July-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 12 1339 79/GOOD 9 2424 69/GOOD 9 1923 KAMLOOPS 66/GOOD 19 1090 99/GOOD 16 2300 66/GOOD 5 1965 OKANAGAN 59/GOOD 16 1190 99/GOOD 17 2393 87/GOOD 12 2456 CASTLEGAR 22/POOR 11 723 96/GOOD 15 2457 89/GOOD 12 2569 CRANBROOK 21/POOR 9 1184 99/GOOD 22 2586 99/GOOD 16 3017 REVELSTOKE 34/FAIR 9 1001 86/GOOD 16 1892 37/FAIR 4 1898 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m PENTICTON 0 0 NW 30 W 30 CRANBROOK SW 26 SW 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 83/GOOD 22 1528 88/GOOD 13 2402 60/GOOD 8 2055 100 MILE 79/GOOD 24 1756 99/GOOD 18 2754 74/GOOD 10 2670 WILLIAMS LAKE 90/GOOD 22 2094 89/GOOD 13 2871 64/GOOD 8 2619 PUNTZI MTN 94/GOOD 22 2183 99/GOOD 19 2997 80/GOOD 10 2942 PRINCE GEORGE 72/GOOD 25 1355 96/GOOD 18 2300 82/GOOD 14 2207 BURNS LAKE 87/GOOD 23 1571 99/GOOD 23 2187 96/GOOD 18 2179 SMITHERS 78/GOOD 18 1599 99/GOOD 21 1988 89/GOOD 17 1981 MCBRIDE 51/FAIR 11 1588 76/GOOD 13 2152 68/GOOD 10 2223 CLEARWATER 59/GOOD 16 1134 95/GOOD 17 2080 64/GOOD 8 2102 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m PR. GEORGE NW 28 W 30 SMITHERS NW 28 NW 37 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 64/GOOD 29 849 41/FAIR 18 759 45/FAIR 11 1085 FT ST JOHN 75/GOOD 24 1443 87/GOOD 19 1959 99/GOOD 18 2461 WHITEHORSE 60/GOOD 14 1559 86/GOOD 21 1821 65/GOOD 15 1632 DAWSON 29/POOR 8 859 53/FAIR 20 862 96/GOOD 15 2315 WATSON LAKE 54/GOOD 30 1032 78/GOOD 19 1698 65/GOOD 15 1607 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m DEASE LAKE W 35 NW 26 WATSON LAKE NW 59 N 50 WHITEHORSE W 33 W 24 MAYO 0 0 SE 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 45/FAIR 23 337 64/GOOD 18 416 67/GOOD 7 486 FRASER VALLEY 28/POOR 15 311 56/GOOD 13 889 60/GOOD 13 1004 SRN VAN ISLD 46/FAIR 25 343 60/GOOD 7 302 67/GOOD 11 344 CNTRL VAN ISLD 68/GOOD 32 494 56/GOOD 14 804 65/GOOD 3 1066 NRN VAN ISLD 48/FAIR 30 308 91/GOOD 35 763 94/GOOD 32 890 TERRACE 47/FAIR 9 1149 71/GOOD 12 1572 65/GOOD 11 1475 STEWART 46/FAIR 10 797 72/GOOD 13 753 52/FAIR 13 756 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m VANCOUVER W 20 W 28 W 35 SANDSPIT N 44 NW 41 NW 46 PORT HARDY NW 35 NW 35 NW 44 VENTILATION GUIDELINES: POOR: 0-33 FAIR: 34-54 GOOD: 55-100 VENTILATION INDICES NORMALLY DROP TO POOR AFTER SUNSET. END/LEC