FPCN39 CWLW 101330 SMOKE CONTROL FORECAST FOR BC AND YUKON ISSUED BY THE MOUNTAIN WEATHER CENTRE OF ENVIRONMENT CANADA AT 7:00 AM PDT TUESDAY 10 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. 10-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 35/FAIR 10 758 94/GOOD 14 2226 46/FAIR 6 1540 KAMLOOPS 71/GOOD 17 1294 98/GOOD 20 1880 60/GOOD 10 1571 OKANAGAN 54/GOOD 14 1195 95/GOOD 12 2840 74/GOOD 14 1703 CASTLEGAR 42/FAIR 13 1038 69/GOOD 12 1778 54/FAIR 8 1776 CRANBROOK 53/FAIR 16 1560 99/GOOD 13 3388 83/GOOD 14 2487 REVELSTOKE 39/FAIR 8 1213 99/GOOD 17 2330 51/FAIR 7 1787 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m PENTICTON 0 0 W 17 NW 24 CRANBROOK NW 9 NW 28 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 55/GOOD 19 1094 99/GOOD 29 2546 27/POOR 3 1736 100 MILE 75/GOOD 19 1876 99/GOOD 31 3705 51/FAIR 8 2112 WILLIAMS LAKE 58/GOOD 21 1487 99/GOOD 31 3308 38/FAIR 4 2454 PUNTZI MTN 57/GOOD 19 1505 99/GOOD 32 2826 52/FAIR 10 1865 PRINCE GEORGE 76/GOOD 23 1481 99/GOOD 27 2820 53/FAIR 7 2113 BURNS LAKE 68/GOOD 23 1192 98/GOOD 16 2453 46/FAIR 8 1543 SMITHERS 50/FAIR 22 938 63/GOOD 8 2182 52/FAIR 9 1606 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m PR. GEORGE NE 37 N 30 SMITHERS E 41 NE 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 73/GOOD 23 1126 63/GOOD 7 2270 48/FAIR 10 1233 FT ST JOHN 81/GOOD 31 1368 99/GOOD 21 2386 48/FAIR 10 1545 WHITEHORSE 18/POOR 21 787 81/GOOD 23 1609 78/GOOD 30 1349 DAWSON 18/POOR 17 465 34/FAIR 20 627 56/GOOD 28 760 WATSON LAKE 15/POOR 10 809 58/GOOD 8 2142 56/GOOD 10 1788 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m DEASE LAKE E 22 NE 17 WATSON LAKE 0 0 N 11 WHITEHORSE S 30 SW 17 MAYO S 37 SW 28 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 72/GOOD 21 788 99/GOOD 21 1502 56/GOOD 18 613 FRASER VALLEY 42/FAIR 11 680 67/GOOD 12 1281 70/GOOD 10 1638 SRN VAN ISLD 62/GOOD 20 653 79/GOOD 17 1170 49/FAIR 10 899 CNTRL VAN ISLD 61/GOOD 17 757 89/GOOD 21 1203 35/FAIR 6 897 NRN VAN ISLD 66/GOOD 17 869 87/GOOD 23 1051 53/FAIR 13 790 TERRACE 42/FAIR 19 579 63/GOOD 9 1676 43/FAIR 11 877 STEWART 34/FAIR 22 239 23/POOR 13 213 25/POOR 17 193 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m VANCOUVER NW 24 NW 28 NW 35 SANDSPIT N 24 N 30 NW 48 PORT HARDY NE 22 N 26 N 44 VENTILLATION GUIDLINES: POOR: 0-33 FAIR: 34-54 GOOD: 55-100 VENTILATION INDICES NORMALLY DROP TO POOR AFTER SUNSET. END/