FPCN39 CWLW 221331 SMOKE CONTROL FORECAST FOR BC AND YUKON ISSUED BY THE MOUNTAIN WEATHER CENTRE OF ENVIRONMENT CANADA AT 7:00 AM PDT SUNDAY 22 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. 22-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 35/FAIR 15 582 39/FAIR 6 1255 64/GOOD 11 1441 KAMLOOPS 43/FAIR 16 801 81/GOOD 14 1837 65/GOOD 9 1867 OKANAGAN 46/FAIR 16 955 56/GOOD 11 1450 44/FAIR 5 1950 CASTLEGAR 18/POOR 10 669 36/FAIR 7 1269 46/FAIR 5 2119 CRANBROOK 31/POOR 15 1232 44/FAIR 6 2199 72/GOOD 9 2795 REVELSTOKE 25/POOR 6 969 38/FAIR 7 1309 53/FAIR 7 1855 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m PENTICTON 0 0 NW 33 N 26 CRANBROOK W 24 NW 19 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 36/FAIR 22 791 84/GOOD 13 2254 71/GOOD 14 1714 100 MILE 36/FAIR 22 1192 93/GOOD 17 2535 56/GOOD 8 2312 WILLIAMS LAKE 29/POOR 20 1138 82/GOOD 13 2567 60/GOOD 8 2449 PUNTZI MTN 43/FAIR 21 1249 60/GOOD 10 2115 98/GOOD 18 2592 PRINCE GEORGE 27/POOR 18 882 85/GOOD 13 2445 74/GOOD 18 1663 BURNS LAKE 52/FAIR 21 1001 80/GOOD 13 2105 78/GOOD 16 1747 SMITHERS 46/FAIR 17 1000 75/GOOD 13 1887 71/GOOD 15 1608 MCBRIDE 25/POOR 15 940 74/GOOD 9 2656 65/GOOD 11 1979 CLEARWATER 18/POOR 5 735 84/GOOD 12 2242 53/FAIR 8 1637 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m PR. GEORGE N 22 N 31 SMITHERS W 20 W 11 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 16/POOR 14 468 66/GOOD 12 1556 53/FAIR 7 1794 FT ST JOHN 11/POOR 4 779 48/FAIR 4 2807 99/GOOD 26 2837 WHITEHORSE 43/FAIR 18 1106 99/GOOD 20 2494 99/GOOD 20 2291 DAWSON 46/FAIR 15 908 80/GOOD 12 2071 63/GOOD 13 1377 WATSON LAKE 30/POOR 25 852 60/GOOD 8 2210 99/GOOD 26 1871 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m DEASE LAKE 0 0 SW 11 WATSON LAKE NW 11 SW 11 WHITEHORSE SW 26 S 35 MAYO S 30 S 50 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 5 338 41/FAIR 11 622 16/POOR 5 269 FRASER VALLEY 30/POOR 10 466 45/FAIR 10 840 44/FAIR 10 816 SRN VAN ISLD 24/POOR 14 225 45/FAIR 9 870 13/POOR 3 287 CNTRL VAN ISLD 19/POOR 8 262 30/POOR 6 732 13/POOR 1 762 NRN VAN ISLD 27/POOR 10 369 53/FAIR 21 491 51/FAIR 18 536 TERRACE 27/POOR 7 704 60/GOOD 9 1557 51/FAIR 10 1164 STEWART 23/POOR 8 345 42/FAIR 9 790 37/FAIR 11 525 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m VANCOUVER NW 9 NW 19 N 22 SANDSPIT N 19 NW 17 NW 17 PORT HARDY W 13 W 19 SW 19 VENTILATION GUIDELINES: POOR: 0-33 FAIR: 34-54 GOOD: 55-100 VENTILATION INDICES NORMALLY DROP TO POOR AFTER SUNSET. END/