FPCN39 CWLW 301330 SMOKE CONTROL FORECAST FOR BC AND YUKON ISSUED BY THE MOUNTAIN WEATHER CENTRE OF ENVIRONMENT CANADA AT 7:00 AM PDT MONDAY 30 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. 30-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 89/GOOD 22 1365 81/GOOD 22 1164 99/GOOD 19 1905 KAMLOOPS 99/GOOD 21 1932 99/GOOD 34 1859 99/GOOD 25 2477 OKANAGAN 99/GOOD 22 1967 99/GOOD 26 1903 99/GOOD 26 2525 CASTLEGAR 89/GOOD 19 1815 64/GOOD 19 1209 99/GOOD 18 2564 CRANBROOK 92/GOOD 22 2148 79/GOOD 25 1726 99/GOOD 20 3166 REVELSTOKE 78/GOOD 14 1806 68/GOOD 14 1502 78/GOOD 16 1632 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m PENTICTON 0 0 SW 35 SW 69 CRANBROOK SW 41 W 69 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 24 2314 99/GOOD 21 2172 99/GOOD 29 1849 100 MILE 99/GOOD 23 2649 99/GOOD 30 2096 99/GOOD 29 2527 WILLIAMS LAKE 99/GOOD 22 2824 99/GOOD 26 2391 99/GOOD 29 2952 PUNTZI MTN 94/GOOD 24 2075 99/GOOD 27 2636 99/GOOD 35 3210 PRINCE GEORGE 99/GOOD 29 2807 99/GOOD 21 2858 99/GOOD 30 2348 BURNS LAKE 85/GOOD 25 1465 99/GOOD 25 2454 99/GOOD 29 2281 SMITHERS 67/GOOD 18 1327 99/GOOD 20 2249 99/GOOD 22 1975 MCBRIDE 99/GOOD 17 2683 72/GOOD 10 2402 78/GOOD 17 1866 CLEARWATER 92/GOOD 18 1869 64/GOOD 19 1107 99/GOOD 20 2259 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m PR. GEORGE SW 43 SW 46 SMITHERS SW 52 SW 50 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 35/FAIR 21 635 94/GOOD 9 3503 99/GOOD 21 3545 FT ST JOHN 97/GOOD 31 1651 99/GOOD 21 3798 99/GOOD 28 3623 WHITEHORSE 47/FAIR 15 1247 92/GOOD 12 2938 99/GOOD 32 2900 DAWSON 16/POOR 8 531 90/GOOD 12 2510 99/GOOD 22 2795 WATSON LAKE 24/POOR 10 982 79/GOOD 10 2671 99/GOOD 27 3351 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m DEASE LAKE S 41 S 30 WATSON LAKE W 22 S 17 WHITEHORSE S 24 S 20 MAYO SE 13 SE 11 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 33 504 76/GOOD 36 514 91/GOOD 34 770 FRASER VALLEY 52/FAIR 22 501 63/GOOD 27 548 93/GOOD 24 1185 SRN VAN ISLD 49/FAIR 23 400 84/GOOD 37 622 75/GOOD 31 356 CNTRL VAN ISLD 53/FAIR 22 476 87/GOOD 31 785 86/GOOD 27 887 NRN VAN ISLD 53/FAIR 23 449 99/GOOD 35 977 79/GOOD 33 622 TERRACE 47/FAIR 17 701 62/GOOD 16 1019 83/GOOD 17 1481 STEWART 33/FAIR 16 310 59/GOOD 12 983 66/GOOD 16 902 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m VANCOUVER SW 52 SW 63 SW 57 SANDSPIT SW 56 SW 57 SW 56 PORT HARDY SW 54 SW 52 SW 54 VENTILLATION GUIDLINES: POOR: 0-33 FAIR: 34-54 GOOD: 55-100 VENTILATION INDICES NORMALLY DROP TO POOR AFTER SUNSET. END/GF