FPCN39 CWLW 291330 SMOKE CONTROL FORECAST FOR BC AND YUKON ISSUED BY THE MOUNTAIN WEATHER CENTRE OF ENVIRONMENT CANADA AT 7:00 AM PDT SUNDAY 29 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. 29-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 96/GOOD 23 1501 75/GOOD 25 941 77/GOOD 21 1112 KAMLOOPS 99/GOOD 24 1721 99/GOOD 33 1462 99/GOOD 33 1936 OKANAGAN 91/GOOD 20 1762 90/GOOD 29 1333 99/GOOD 26 2001 CASTLEGAR 81/GOOD 17 1703 78/GOOD 19 1503 88/GOOD 21 1657 CRANBROOK 68/GOOD 19 1735 99/GOOD 24 2491 99/GOOD 24 2419 REVELSTOKE 52/FAIR 12 1252 67/GOOD 19 1219 67/GOOD 17 1308 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m PENTICTON 0 0 SW 30 SW 54 CRANBROOK SW 30 SW 52 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 99/GOOD 29 1899 99/GOOD 27 2490 99/GOOD 22 2677 100 MILE 99/GOOD 29 2377 99/GOOD 36 2609 99/GOOD 23 3612 WILLIAMS LAKE 99/GOOD 27 2403 99/GOOD 31 3170 99/GOOD 25 3407 PUNTZI MTN 99/GOOD 28 2117 99/GOOD 32 3177 99/GOOD 27 2958 PRINCE GEORGE 99/GOOD 30 2107 99/GOOD 25 2940 99/GOOD 27 3185 BURNS LAKE 92/GOOD 28 1507 99/GOOD 28 2473 99/GOOD 26 2711 SMITHERS 85/GOOD 26 1391 98/GOOD 19 2132 99/GOOD 21 2152 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m PR. GEORGE S 65 SW 65 SMITHERS S 69 S 104 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 77/GOOD 22 1236 99/GOOD 14 3324 61/GOOD 4 3533 FT ST JOHN 32/POOR 18 952 99/GOOD 19 2937 99/GOOD 25 3567 WHITEHORSE 46/FAIR 16 1196 99/GOOD 18 2800 89/GOOD 12 2777 DAWSON 28/POOR 5 1094 73/GOOD 7 2814 86/GOOD 13 2158 WATSON LAKE 14/POOR 3 965 99/GOOD 16 2678 81/GOOD 9 2984 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m DEASE LAKE S 35 SE 35 WATSON LAKE 0 0 0 0 WHITEHORSE SE 24 SE 24 MAYO W 17 SW 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 99/GOOD 47 807 99/GOOD 33 1116 76/GOOD 28 655 FRASER VALLEY 76/GOOD 26 756 99/GOOD 30 1366 73/GOOD 24 766 SRN VAN ISLD 99/GOOD 35 904 99/GOOD 33 1169 78/GOOD 31 632 CNTRL VAN ISLD 98/GOOD 34 915 99/GOOD 29 1152 84/GOOD 27 850 NRN VAN ISLD 69/GOOD 43 383 84/GOOD 28 822 89/GOOD 32 807 TERRACE 38/FAIR 23 475 58/GOOD 17 896 84/GOOD 16 1606 STEWART 36/FAIR 25 228 55/GOOD 16 658 76/GOOD 14 1324 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m VANCOUVER S 54 S 67 SW 67 SANDSPIT S 61 SW 67 S 78 PORT HARDY SW 54 SW 54 SW 56 VENTILLATION GUIDLINES: POOR: 0-33 FAIR: 34-54 GOOD: 55-100 VENTILATION INDICES NORMALLY DROP TO POOR AFTER SUNSET. END/GF