FPCN39 CWLW 281331 SMOKE CONTROL FORECAST FOR BC AND YUKON ISSUED BY THE MOUNTAIN WEATHER CENTRE OF ENVIRONMENT CANADA AT 7:00 AM PDT SATURDAY 28 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. 28-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 40/FAIR 9 936 95/GOOD 17 1899 90/GOOD 24 1283 KAMLOOPS 62/GOOD 14 1265 99/GOOD 28 2298 99/GOOD 32 1760 OKANAGAN 41/FAIR 11 1066 99/GOOD 26 2020 96/GOOD 28 1501 CASTLEGAR 43/FAIR 8 1391 69/GOOD 17 1403 56/GOOD 22 987 CRANBROOK 12/POOR 8 1011 80/GOOD 21 1901 99/GOOD 27 2446 REVELSTOKE 37/FAIR 10 1014 62/GOOD 13 1432 49/FAIR 18 925 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m PENTICTON 0 0 SW 19 S 24 CRANBROOK S 37 S 57 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 63/GOOD 13 1563 91/GOOD 12 2740 99/GOOD 24 2261 100 MILE 75/GOOD 16 2060 94/GOOD 12 3262 99/GOOD 28 2680 WILLIAMS LAKE 51/FAIR 10 1865 70/GOOD 12 2256 99/GOOD 23 2956 PUNTZI MTN 58/GOOD 16 1628 99/GOOD 19 3632 99/GOOD 31 2808 PRINCE GEORGE 75/GOOD 17 1737 99/GOOD 14 3108 99/GOOD 29 2914 BURNS LAKE 57/GOOD 12 1483 99/GOOD 19 3633 99/GOOD 24 2076 SMITHERS 42/FAIR 9 1287 99/GOOD 15 3420 82/GOOD 20 1583 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m PR. GEORGE SW 17 S 37 SMITHERS SW 26 SW 30 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 50/FAIR 23 773 99/GOOD 25 3270 99/GOOD 10 3462 FT ST JOHN 49/FAIR 12 1429 99/GOOD 26 3206 99/GOOD 22 2980 WHITEHORSE 74/GOOD 16 1802 99/GOOD 16 3189 99/GOOD 19 2736 DAWSON 70/GOOD 15 1431 95/GOOD 13 2561 93/GOOD 10 3106 WATSON LAKE 35/FAIR 18 978 99/GOOD 17 3756 99/GOOD 16 3256 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m DEASE LAKE SW 43 SW 22 WATSON LAKE W 22 S 28 WHITEHORSE SW 39 S 44 MAYO SW 44 S 46 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 55/GOOD 14 746 67/GOOD 20 732 63/GOOD 32 413 FRASER VALLEY 47/FAIR 12 756 81/GOOD 18 1204 78/GOOD 32 655 SRN VAN ISLD 44/FAIR 14 551 86/GOOD 26 909 87/GOOD 36 681 CNTRL VAN ISLD 47/FAIR 13 654 86/GOOD 20 1183 95/GOOD 28 1053 NRN VAN ISLD 14/POOR 5 222 99/GOOD 24 1622 67/GOOD 28 545 TERRACE 48/FAIR 8 1281 81/GOOD 11 2080 62/GOOD 17 974 STEWART 27/POOR 9 400 70/GOOD 13 1213 32/POOR 20 234 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m VANCOUVER W 17 SW 22 SW 33 SANDSPIT S 17 SW 17 SW 28 PORT HARDY S 33 S 30 S 30 VENTILLATION GUIDLINES: POOR: 0-33 FAIR: 34-54 GOOD: 55-100 VENTILATION INDICES NORMALLY DROP TO POOR AFTER SUNSET. END/GF