FPCN39 CWLW 211330 SMOKE CONTROL FORECAST FOR BC AND YUKON ISSUED BY THE MOUNTAIN WEATHER CENTRE OF ENVIRONMENT CANADA AT 7:00 AM PDT MONDAY 21 MAY 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. 21-May-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 33/FAIR 18 496 71/GOOD 12 1569 87/GOOD 18 1557 KAMLOOPS 41/FAIR 16 758 73/GOOD 10 2030 90/GOOD 20 1632 OKANAGAN 38/FAIR 13 909 65/GOOD 9 2011 88/GOOD 17 1904 CASTLEGAR 32/POOR 11 913 76/GOOD 11 2167 71/GOOD 13 1741 CRANBROOK 41/FAIR 15 1389 95/GOOD 17 2631 98/GOOD 20 2450 REVELSTOKE 33/FAIR 14 793 70/GOOD 11 1891 89/GOOD 16 1998 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m PENTICTON 0 0 NW 17 NW 35 CRANBROOK NW 22 NW 26 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 62/GOOD 15 1402 61/GOOD 7 2329 66/GOOD 12 1745 100 MILE 50/FAIR 14 1599 59/GOOD 7 2612 98/GOOD 21 2388 WILLIAMS LAKE 53/FAIR 17 1526 70/GOOD 9 2674 73/GOOD 21 1752 PUNTZI MTN 60/GOOD 25 1400 99/GOOD 26 2400 99/GOOD 29 2757 PRINCE GEORGE 70/GOOD 18 1559 33/POOR 4 1871 72/GOOD 17 1675 BURNS LAKE 68/GOOD 20 1288 94/GOOD 19 2005 99/GOOD 28 2204 SMITHERS 59/GOOD 19 1144 57/GOOD 12 1446 98/GOOD 21 1973 MCBRIDE 60/GOOD 17 1435 70/GOOD 14 1870 79/GOOD 15 2050 CLEARWATER 58/GOOD 17 1080 77/GOOD 12 1961 99/GOOD 20 1982 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m PR. GEORGE W 39 W 43 SMITHERS SW 70 W 54 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 18 614 99/GOOD 15 2471 99/GOOD 34 3428 FT ST JOHN 89/GOOD 25 1695 99/GOOD 31 2353 99/GOOD 40 2857 WHITEHORSE 71/GOOD 18 1611 99/GOOD 25 2404 99/GOOD 23 2745 DAWSON 38/FAIR 29 579 99/GOOD 17 2777 85/GOOD 14 1996 WATSON LAKE 68/GOOD 15 1699 99/GOOD 21 2485 99/GOOD 34 3087 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m DEASE LAKE SW 50 SW 67 WATSON LAKE SW 41 W 30 WHITEHORSE S 39 S 50 MAYO S 24 SE 35 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 12/POOR 4 150 16/POOR 5 250 21/POOR 8 287 FRASER VALLEY 13/POOR 4 260 33/FAIR 8 667 35/FAIR 7 824 SRN VAN ISLD 10/POOR 3 107 12/POOR 3 219 15/POOR 4 271 CNTRL VAN ISLD 12/POOR 3 181 23/POOR 4 697 21/POOR 3 775 NRN VAN ISLD 30/POOR 19 239 33/FAIR 11 468 52/FAIR 16 622 TERRACE 26/POOR 5 856 33/POOR 5 1157 76/GOOD 15 1443 STEWART 18/POOR 19 95 17/POOR 15 100 60/GOOD 16 756 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m VANCOUVER 0 0 NW 22 NW 41 SANDSPIT SW 20 W 31 W 52 PORT HARDY SW 41 SW 54 SW 74 VENTILLATION GUIDLINES: POOR: 0-33 FAIR: 34-54 GOOD: 55-100 VENTILATION INDICES NORMALLY DROP TO POOR AFTER SUNSET. END/DSL