FPCN39 CWLW 121330 SMOKE CONTROL FORECAST FOR BC AND YUKON ISSUED BY THE MOUNTAIN WEATHER CENTRE OF ENVIRONMENT CANADA AT 7:00 AM PDT THURSDAY 12 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. 12-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 13 277 76/GOOD 10 2044 84/GOOD 17 1550 KAMLOOPS 14/POOR 7 468 99/GOOD 14 2959 99/GOOD 24 2268 OKANAGAN 11/POOR 3 571 93/GOOD 11 2937 99/GOOD 20 2263 CASTLEGAR 49/FAIR 10 1367 87/GOOD 9 3158 88/GOOD 17 1947 CRANBROOK 41/FAIR 11 1547 62/GOOD 9 2344 83/GOOD 20 2011 REVELSTOKE 26/POOR 13 700 58/GOOD 5 2711 63/GOOD 12 1526 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m PENTICTON 0 0 0 0 0 0 CRANBROOK 0 0 S 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 20/POOR 18 662 82/GOOD 10 2664 54/GOOD 7 2025 100 MILE 19/POOR 19 1038 93/GOOD 11 3420 78/GOOD 15 2223 WILLIAMS LAKE 24/POOR 16 1119 70/GOOD 7 3220 68/GOOD 13 2106 PUNTZI MTN 17/POOR 19 987 82/GOOD 13 2553 75/GOOD 21 1760 PRINCE GEORGE 25/POOR 22 830 74/GOOD 8 2881 61/GOOD 8 2252 BURNS LAKE 19/POOR 20 642 66/GOOD 10 1986 88/GOOD 19 1820 SMITHERS 20/POOR 18 643 40/FAIR 7 1437 65/GOOD 12 1687 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m PR. GEORGE S 28 SW 17 SMITHERS S 28 S 33 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 12/POOR 3 556 63/GOOD 8 2015 18/POOR 1 2134 FT ST JOHN 22/POOR 16 843 74/GOOD 10 2452 26/POOR 2 2361 WHITEHORSE 58/GOOD 18 1334 56/GOOD 11 1688 70/GOOD 10 2288 DAWSON 31/POOR 22 570 18/POOR 4 773 28/POOR 8 831 WATSON LAKE 13/POOR 10 764 34/FAIR 4 1957 60/GOOD 9 2053 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m DEASE LAKE S 26 S 39 WATSON LAKE SW 31 S 31 WHITEHORSE S 31 S 48 MAYO S 41 S 39 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 14 171 58/GOOD 17 685 55/GOOD 10 1047 FRASER VALLEY 15/POOR 18 122 68/GOOD 11 1410 88/GOOD 17 1485 SRN VAN ISLD 30/POOR 19 239 63/GOOD 10 1319 85/GOOD 16 1442 CNTRL VAN ISLD 25/POOR 19 181 60/GOOD 14 877 65/GOOD 10 1409 NRN VAN ISLD 36/FAIR 14 414 79/GOOD 25 817 60/GOOD 9 1384 TERRACE 37/FAIR 14 627 19/POOR 5 609 50/FAIR 6 1709 STEWART 15/POOR 15 78 15/POOR 6 202 15/POOR 3 391 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m VANCOUVER S 17 S 20 S 15 SANDSPIT S 24 S 30 SW 22 PORT HARDY W 33 W 20 S 19 VENTILLATION GUIDLINES: POOR: 0-33 FAIR: 34-54 GOOD: 55-100 VENTILATION INDICES NORMALLY DROP TO POOR AFTER SUNSET. END/DSL/CC