FPCN39 CWLW 201330 SMOKE CONTROL FORECAST FOR BC AND YUKON ISSUED BY THE MOUNTAIN WEATHER CENTRE OF ENVIRONMENT CANADA AT 7:00 AM PDT FRIDAY 20 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. 20-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 18/POOR 9 425 58/GOOD 5 1952 42/FAIR 6 1370 KAMLOOPS 13/POOR 5 491 59/GOOD 7 2014 60/GOOD 13 1283 OKANAGAN 16/POOR 10 585 57/GOOD 6 2313 51/FAIR 8 1642 CASTLEGAR 13/POOR 9 586 59/GOOD 5 2266 47/FAIR 6 1887 CRANBROOK 15/POOR 8 1072 62/GOOD 7 2780 82/GOOD 13 2550 REVELSTOKE 11/POOR 4 546 67/GOOD 8 2290 47/FAIR 7 1606 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m PENTICTON 0 0 0 0 SW 13 CRANBROOK W 9 SW 9 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 25/POOR 15 755 56/GOOD 12 1089 96/GOOD 16 2378 100 MILE 11/POOR 5 1003 89/GOOD 17 2414 78/GOOD 16 2131 WILLIAMS LAKE 14/POOR 9 1033 67/GOOD 14 1982 70/GOOD 15 2004 PUNTZI MTN 16/POOR 15 1002 58/GOOD 15 1511 97/GOOD 15 2881 PRINCE GEORGE 45/FAIR 16 1176 63/GOOD 13 1706 88/GOOD 14 2453 BURNS LAKE 54/FAIR 20 1055 94/GOOD 16 2284 75/GOOD 9 2515 SMITHERS 32/POOR 17 790 83/GOOD 13 2176 78/GOOD 10 2430 MCBRIDE 24/POOR 16 909 40/FAIR 12 937 43/FAIR 7 1761 CLEARWATER 16/POOR 4 702 64/GOOD 9 1882 45/FAIR 8 1374 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m PR. GEORGE N 11 N 15 SMITHERS NE 41 N 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 46/FAIR 27 676 85/GOOD 19 1567 45/FAIR 6 1689 FT ST JOHN 61/GOOD 34 1057 59/GOOD 20 1286 99/GOOD 20 2950 WHITEHORSE 25/POOR 18 879 77/GOOD 12 2257 86/GOOD 15 2268 DAWSON 11/POOR 10 414 99/GOOD 16 2627 95/GOOD 14 2417 WATSON LAKE 12/POOR 13 737 71/GOOD 9 2495 66/GOOD 10 2123 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m DEASE LAKE N 17 N 19 WATSON LAKE N 13 N 15 WHITEHORSE SW 22 SW 22 MAYO SW 26 SW 26 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 14/POOR 5 188 65/GOOD 12 436 49/FAIR 4 354 FRASER VALLEY 10/POOR 2 145 66/GOOD 13 1162 34/FAIR 8 681 SRN VAN ISLD 16/POOR 13 124 57/GOOD 9 417 35/FAIR 4 683 CNTRL VAN ISLD 30/POOR 18 258 59/GOOD 8 1127 39/FAIR 3 622 NRN VAN ISLD 26/POOR 19 198 56/GOOD 23 496 41/FAIR 18 397 TERRACE 27/POOR 14 474 70/GOOD 10 1807 64/GOOD 7 2156 STEWART 24/POOR 19 154 56/GOOD 13 616 43/FAIR 10 721 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m VANCOUVER 0 0 0 0 NE 11 SANDSPIT N 13 N 11 N 24 PORT HARDY N 33 N 30 N 44 VENTILATION GUIDELINES: POOR: 0-33 FAIR: 34-54 GOOD: 55-100 VENTILATION INDICES NORMALLY DROP TO POOR AFTER SUNSET. END/GF