FPCN39 CWLW 041330 SMOKE CONTROL FORECAST FOR BC AND YUKON ISSUED BY THE MOUNTAIN WEATHER CENTRE OF ENVIRONMENT CANADA AT 7:00 AM PDT TUESDAY 4 SEPTEMBER 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. 04-September-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 29/POOR 15 497 95/GOOD 30 1183 74/GOOD 9 2172 KAMLOOPS 26/POOR 11 647 52/FAIR 15 996 99/GOOD 21 2486 OKANAGAN 17/POOR 5 733 50/FAIR 11 1293 99/GOOD 21 2501 CASTLEGAR 29/POOR 15 756 83/GOOD 11 2448 93/GOOD 14 2429 CRANBROOK 36/FAIR 13 1365 99/GOOD 19 2990 99/GOOD 20 3686 REVELSTOKE 14/POOR 8 553 23/POOR 5 983 85/GOOD 15 1960 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m PENTICTON 0 0 W 11 SW 26 CRANBROOK SW 19 SW 44 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 40/FAIR 9 1271 73/GOOD 11 2105 80/GOOD 12 2225 100 MILE 32/POOR 13 1292 75/GOOD 9 2936 99/GOOD 21 2722 WILLIAMS LAKE 45/FAIR 14 1485 62/GOOD 6 3088 88/GOOD 14 2671 PUNTZI MTN 18/POOR 3 1481 70/GOOD 8 2895 74/GOOD 12 2370 PRINCE GEORGE 21/POOR 10 927 57/GOOD 7 2286 94/GOOD 17 2338 BURNS LAKE 49/FAIR 12 1273 54/FAIR 9 1669 90/GOOD 18 1966 SMITHERS 53/FAIR 11 1423 66/GOOD 10 1957 83/GOOD 17 1795 MCBRIDE 21/POOR 4 1310 80/GOOD 9 2998 85/GOOD 14 2368 CLEARWATER 11/POOR 2 579 69/GOOD 11 1801 99/GOOD 18 2253 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m PR. GEORGE W 19 SW 35 SMITHERS SW 44 SW 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 22/POOR 29 466 99/GOOD 21 2135 81/GOOD 18 1544 FT ST JOHN 82/GOOD 32 1363 99/GOOD 27 2724 99/GOOD 25 2821 WHITEHORSE 60/GOOD 21 1277 90/GOOD 20 1988 57/GOOD 23 1183 DAWSON 19/POOR 17 476 99/GOOD 20 2291 65/GOOD 18 1145 WATSON LAKE 67/GOOD 25 1281 86/GOOD 21 1800 85/GOOD 16 2120 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m DEASE LAKE SW 46 W 44 WATSON LAKE W 37 W 22 WHITEHORSE W 24 SW 17 MAYO SW 15 SW 19 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 6 100 37/FAIR 20 283 40/FAIR 13 490 FRASER VALLEY 9/POOR 2 95 42/FAIR 12 629 61/GOOD 14 954 SRN VAN ISLD 13/POOR 9 94 27/POOR 15 247 33/FAIR 14 369 CNTRL VAN ISLD 20/POOR 12 192 54/GOOD 12 890 49/FAIR 9 993 NRN VAN ISLD 10/POOR 4 56 79/GOOD 20 1016 71/GOOD 17 972 TERRACE 50/FAIR 11 1036 49/FAIR 10 1094 57/GOOD 12 1154 STEWART 33/FAIR 12 411 38/FAIR 10 593 42/FAIR 12 593 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m VANCOUVER 0 0 SW 19 SW 31 SANDSPIT 0 0 SW 15 SW 35 PORT HARDY SW 33 SW 30 W 22 VENTILATION GUIDELINES: POOR: 0-33 FAIR: 34-54 GOOD: 55-100 VENTILATION INDICES NORMALLY DROP TO POOR AFTER SUNSET. END/MTNWC