FPCN39 CWLW 241330 SMOKE CONTROL FORECAST FOR BC AND YUKON ISSUED BY THE MOUNTAIN WEATHER CENTRE OF ENVIRONMENT CANADA AT 7:00 AM PDT TUESDAY 24 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. 24-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 67/GOOD 23 865 76/GOOD 21 1109 84/GOOD 20 1327 KAMLOOPS 77/GOOD 20 1289 99/GOOD 28 1694 92/GOOD 20 1673 OKANAGAN 77/GOOD 22 1313 99/GOOD 25 1870 99/GOOD 23 2002 CASTLEGAR 66/GOOD 14 1505 95/GOOD 18 2080 92/GOOD 18 1988 CRANBROOK 60/GOOD 16 1706 99/GOOD 23 2322 99/GOOD 26 2581 REVELSTOKE 60/GOOD 14 1313 76/GOOD 17 1509 60/GOOD 13 1367 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m PENTICTON SW 11 SW 33 SW 57 CRANBROOK SW 15 W 46 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 89/GOOD 28 1440 99/GOOD 28 2119 57/GOOD 14 1353 100 MILE 86/GOOD 27 1805 99/GOOD 32 2189 25/POOR 7 1369 WILLIAMS LAKE 87/GOOD 27 1823 99/GOOD 31 2647 53/FAIR 13 1696 PUNTZI MTN 72/GOOD 30 1466 99/GOOD 37 2541 50/FAIR 10 1813 PRINCE GEORGE 94/GOOD 30 1614 99/GOOD 25 2250 60/GOOD 13 1637 BURNS LAKE 86/GOOD 28 1379 99/GOOD 31 1643 64/GOOD 12 1668 SMITHERS 65/GOOD 25 1080 93/GOOD 25 1605 63/GOOD 9 1992 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m PR. GEORGE SW 56 SW 59 SMITHERS SW 63 SW 93 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 30/POOR 24 553 99/GOOD 26 2838 99/GOOD 15 2624 FT ST JOHN 44/FAIR 25 995 99/GOOD 39 2507 99/GOOD 16 2772 WHITEHORSE 81/GOOD 20 1741 87/GOOD 15 2305 99/GOOD 20 2478 DAWSON 70/GOOD 26 973 91/GOOD 20 1689 89/GOOD 15 2040 WATSON LAKE 33/POOR 22 906 98/GOOD 14 2843 95/GOOD 16 2484 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m DEASE LAKE S 33 SW 63 WATSON LAKE S 35 SW 31 WHITEHORSE SE 19 SE 24 MAYO SE 17 SE 13 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 41/FAIR 24 279 25/POOR 8 387 24/POOR 8 366 FRASER VALLEY 71/GOOD 24 737 55/GOOD 11 1017 55/GOOD 11 1009 SRN VAN ISLD 22/POOR 13 209 21/POOR 11 220 23/POOR 10 292 CNTRL VAN ISLD 49/FAIR 19 491 41/FAIR 13 539 45/FAIR 9 884 NRN VAN ISLD 16/POOR 42 51 11/POOR 24 34 16/POOR 24 78 TERRACE 52/FAIR 23 642 64/GOOD 22 831 52/FAIR 8 1417 STEWART 19/POOR 18 114 23/POOR 20 142 20/POOR 9 232 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m VANCOUVER SW 30 SW 43 W 63 SANDSPIT S 69 SW 87 SW 91 PORT HARDY SW 69 SW 78 SW 80 VENTILLATION GUIDLINES: POOR: 0-33 FAIR: 34-54 GOOD: 55-100 VENTILATION INDICES NORMALLY DROP TO POOR AFTER SUNSET. END/