FPCN39 CWLW 041339 SMOKE CONTROL FORECAST FOR BC AND YUKON ISSUED BY THE MOUNTAIN WEATHER CENTRE OF ENVIRONMENT CANADA AT 7:00 AM PDT WEDNESDAY 4 APRIL 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-April-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 12/POOR 6 329 53/FAIR 9 1350 56/GOOD 14 1008 KAMLOOPS 30/POOR 12 685 71/GOOD 10 1978 89/GOOD 18 1746 OKANAGAN 22/POOR 12 657 63/GOOD 9 1921 82/GOOD 14 1951 CASTLEGAR 55/GOOD 14 1250 35/FAIR 3 2219 73/GOOD 10 2177 CRANBROOK 54/FAIR 17 1534 47/FAIR 6 2320 68/GOOD 12 2201 REVELSTOKE 26/POOR 13 695 43/FAIR 6 1665 63/GOOD 11 1640 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m PENTICTON 0 0 NE 20 NE 20 CRANBROOK E 15 E 37 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 19/POOR 16 657 79/GOOD 17 1716 40/FAIR 17 925 100 MILE 26/POOR 17 1134 85/GOOD 14 2558 83/GOOD 21 1963 WILLIAMS LAKE 18/POOR 13 1075 73/GOOD 11 2479 56/GOOD 15 1670 PUNTZI MTN 21/POOR 23 1012 92/GOOD 20 2236 56/GOOD 14 1682 PRINCE GEORGE 19/POOR 22 778 94/GOOD 19 2168 60/GOOD 18 1361 BURNS LAKE 20/POOR 27 619 62/GOOD 21 1158 60/GOOD 12 1547 SMITHERS 14/POOR 25 562 60/GOOD 20 1122 65/GOOD 9 2060 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m PR. GEORGE SW 28 SW 19 SMITHERS SW 46 SW 44 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 15 446 91/GOOD 18 1824 36/FAIR 5 1459 FT ST JOHN 24/POOR 30 790 99/GOOD 33 1644 50/FAIR 12 1453 WHITEHORSE 29/POOR 29 836 68/GOOD 23 1347 63/GOOD 11 1896 DAWSON 35/FAIR 28 557 58/GOOD 19 971 32/POOR 8 938 WATSON LAKE 28/POOR 21 871 99/GOOD 27 2234 77/GOOD 9 2769 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m DEASE LAKE SW 56 SW 94 WATSON LAKE SW 63 W 93 WHITEHORSE SW 52 SW 80 MAYO SW 50 W 54 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 22/POOR 15 168 21/POOR 5 449 27/POOR 8 442 FRASER VALLEY 19/POOR 15 181 59/GOOD 10 1249 31/POOR 5 951 SRN VAN ISLD 13/POOR 5 171 24/POOR 7 430 17/POOR 5 323 CNTRL VAN ISLD 14/POOR 8 143 41/FAIR 6 1156 48/FAIR 15 597 NRN VAN ISLD 13/POOR 10 103 57/GOOD 14 831 31/POOR 13 354 TERRACE 20/POOR 21 313 32/POOR 19 463 51/FAIR 8 1374 STEWART 34/FAIR 21 251 24/POOR 18 161 25/POOR 8 381 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m VANCOUVER E 26 E 15 NE 30 SANDSPIT SW 15 W 9 0 0 PORT HARDY SW 41 SW 41 SW 46 VENTILLATION GUIDLINES: POOR: 0-33 FAIR: 34-54 GOOD: 55-100 VENTILATION INDICES NORMALLY DROP TO POOR AFTER SUNSET. END/