FPCN39 CWLW 201330 SMOKE CONTROL FORECAST FOR BC AND YUKON ISSUED BY THE MOUNTAIN WEATHER CENTRE OF ENVIRONMENT CANADA AT 7:00 AM PDT THURSDAY 20 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. 20-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 18/POOR 10 403 61/GOOD 10 1465 55/GOOD 15 930 KAMLOOPS 29/POOR 12 671 76/GOOD 12 1888 54/FAIR 11 1274 OKANAGAN 17/POOR 10 601 56/GOOD 7 2015 56/GOOD 8 1823 CASTLEGAR 16/POOR 13 595 58/GOOD 7 2133 60/GOOD 7 2244 CRANBROOK 15/POOR 11 1043 70/GOOD 10 2507 76/GOOD 12 2468 REVELSTOKE 14/POOR 9 536 68/GOOD 9 2124 35/FAIR 6 1337 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m PENTICTON 0 0 S 11 SW 28 CRANBROOK 0 0 W 24 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 22/POOR 8 844 66/GOOD 11 1827 28/POOR 23 710 100 MILE 25/POOR 8 1315 83/GOOD 12 2751 26/POOR 24 1076 WILLIAMS LAKE 17/POOR 5 1221 69/GOOD 9 2649 39/FAIR 22 1225 PUNTZI MTN 20/POOR 5 1324 50/FAIR 10 1805 53/FAIR 19 1435 PRINCE GEORGE 17/POOR 10 831 59/GOOD 10 1864 66/GOOD 24 1280 BURNS LAKE 33/POOR 15 1028 62/GOOD 13 1688 41/FAIR 22 1021 SMITHERS 18/POOR 12 659 46/FAIR 10 1323 17/POOR 19 597 MCBRIDE 12/POOR 8 804 52/FAIR 10 1700 41/FAIR 15 1175 CLEARWATER 27/POOR 13 672 83/GOOD 12 2195 52/FAIR 13 1147 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m PR. GEORGE SW 11 W 24 SMITHERS SW 13 S 26 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 14/POOR 11 467 61/GOOD 9 1768 50/FAIR 12 1131 FT ST JOHN 18/POOR 18 791 62/GOOD 7 2532 99/GOOD 21 2355 WHITEHORSE 21/POOR 19 820 80/GOOD 12 2390 92/GOOD 22 1919 DAWSON 34/FAIR 23 592 60/GOOD 13 1308 99/GOOD 21 1857 WATSON LAKE 10/POOR 2 767 39/FAIR 4 2231 57/GOOD 16 1379 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m DEASE LAKE S 26 S 20 WATSON LAKE W 17 SW 20 WHITEHORSE SW 24 S 13 MAYO SE 17 S 20 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 11/POOR 3 125 26/POOR 8 424 40/FAIR 17 377 FRASER VALLEY 12/POOR 6 140 35/FAIR 8 711 30/POOR 6 756 SRN VAN ISLD 11/POOR 4 118 29/POOR 8 519 15/POOR 12 111 CNTRL VAN ISLD 9/POOR 1 100 37/FAIR 8 755 18/POOR 21 106 NRN VAN ISLD 12/POOR 15 63 17/POOR 21 93 10/POOR 22 31 TERRACE 11/POOR 10 258 15/POOR 16 288 10/POOR 23 228 STEWART 14/POOR 12 89 12/POOR 12 54 10/POOR 23 15 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m VANCOUVER 0 0 SW 9 W 26 SANDSPIT S 17 S 20 SW 28 PORT HARDY S 31 S 26 S 28 VENTILATION GUIDELINES: POOR: 0-33 FAIR: 34-54 GOOD: 55-100 VENTILATION INDICES NORMALLY DROP TO POOR AFTER SUNSET. END/RET