FPCN39 CWLW 201330 SMOKE CONTROL FORECAST FOR BC AND YUKON ISSUED BY THE MOUNTAIN WEATHER CENTRE OF ENVIRONMENT CANADA AT 7:00 AM PDT MONDAY 20 AUGUST 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-August-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 41/FAIR 9 962 96/GOOD 16 2062 62/GOOD 17 974 KAMLOOPS 41/FAIR 7 1308 99/GOOD 18 2791 91/GOOD 21 1581 OKANAGAN 48/FAIR 11 1223 99/GOOD 15 3053 80/GOOD 15 1807 CASTLEGAR 25/POOR 9 844 99/GOOD 15 3293 91/GOOD 13 2528 CRANBROOK 13/POOR 1 1676 99/GOOD 20 3674 99/GOOD 22 3209 REVELSTOKE 43/FAIR 7 1463 99/GOOD 13 3032 56/GOOD 8 1785 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m PENTICTON 0 0 W 19 SW 26 CRANBROOK W 19 SW 22 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 47/FAIR 11 1303 75/GOOD 11 2154 99/GOOD 28 1830 100 MILE 25/POOR 3 1949 84/GOOD 10 3152 99/GOOD 34 2366 WILLIAMS LAKE 30/POOR 4 1960 65/GOOD 8 2661 99/GOOD 29 2503 PUNTZI MTN 31/POOR 6 1652 99/GOOD 20 2916 99/GOOD 25 2156 PRINCE GEORGE 50/FAIR 18 1198 79/GOOD 12 2313 87/GOOD 23 1736 BURNS LAKE 62/GOOD 18 1258 91/GOOD 16 2173 68/GOOD 21 1260 SMITHERS 50/FAIR 13 1226 80/GOOD 13 2088 78/GOOD 19 1542 MCBRIDE 49/FAIR 8 1839 69/GOOD 9 2419 79/GOOD 15 2039 CLEARWATER 18/POOR 2 1240 79/GOOD 9 2610 80/GOOD 18 1525 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m PR. GEORGE W 20 W 22 SMITHERS SW 28 S 15 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 35/FAIR 30 555 99/GOOD 13 2864 66/GOOD 13 1476 FT ST JOHN 60/GOOD 28 1126 99/GOOD 22 3351 99/GOOD 15 2782 WHITEHORSE 74/GOOD 19 1628 93/GOOD 17 2302 99/GOOD 24 2177 DAWSON 50/FAIR 16 933 87/GOOD 12 2351 85/GOOD 10 2629 WATSON LAKE 60/GOOD 24 1200 70/GOOD 7 2947 96/GOOD 24 1899 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m DEASE LAKE SW 15 SW 22 WATSON LAKE W 15 SW 13 WHITEHORSE S 33 S 26 MAYO S 26 SE 24 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 4 108 58/GOOD 12 959 59/GOOD 48 248 FRASER VALLEY 15/POOR 8 188 73/GOOD 14 1282 36/FAIR 29 247 SRN VAN ISLD 23/POOR 15 192 66/GOOD 18 804 46/FAIR 34 251 CNTRL VAN ISLD 18/POOR 12 157 56/GOOD 11 1018 49/FAIR 29 332 NRN VAN ISLD 27/POOR 9 415 73/GOOD 22 797 45/FAIR 23 354 TERRACE 47/FAIR 10 1046 64/GOOD 14 1175 65/GOOD 13 1273 STEWART 32/POOR 10 457 61/GOOD 14 893 38/FAIR 12 503 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m VANCOUVER 0 0 W 13 W 24 SANDSPIT SW 11 SW 13 W 19 PORT HARDY S 30 S 26 SW 24 VENTILATION GUIDELINES: POOR: 0-33 FAIR: 34-54 GOOD: 55-100 VENTILATION INDICES NORMALLY DROP TO POOR AFTER SUNSET. END/GF