FPCN39 CWLW 211330 SMOKE CONTROL FORECAST FOR BC AND YUKON ISSUED BY THE MOUNTAIN WEATHER CENTRE OF ENVIRONMENT CANADA AT 7:00 AM PDT FRIDAY 21 SEPTEMBER 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-September-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 49/FAIR 21 648 97/GOOD 30 1229 40/FAIR 9 943 KAMLOOPS 55/GOOD 20 878 83/GOOD 19 1487 72/GOOD 15 1464 OKANAGAN 49/FAIR 16 1007 72/GOOD 12 1831 66/GOOD 12 1643 CASTLEGAR 15/POOR 13 574 74/GOOD 10 2220 52/FAIR 7 1893 CRANBROOK 10/POOR 6 982 77/GOOD 14 2268 68/GOOD 10 2451 REVELSTOKE 36/FAIR 14 842 46/FAIR 10 1243 22/POOR 7 797 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m PENTICTON 0 0 W 52 W 52 CRANBROOK W 28 W 48 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 61/GOOD 23 1086 76/GOOD 17 1623 30/POOR 26 708 100 MILE 66/GOOD 23 1555 99/GOOD 21 2414 61/GOOD 23 1487 WILLIAMS LAKE 58/GOOD 21 1484 98/GOOD 17 2728 59/GOOD 24 1434 PUNTZI MTN 56/GOOD 24 1360 96/GOOD 23 2185 18/POOR 18 999 PRINCE GEORGE 71/GOOD 26 1315 72/GOOD 18 1611 21/POOR 26 778 BURNS LAKE 33/POOR 21 940 84/GOOD 24 1639 12/POOR 26 736 SMITHERS 30/POOR 17 766 82/GOOD 23 1444 12/POOR 25 545 MCBRIDE 45/FAIR 18 1160 50/FAIR 12 1480 58/GOOD 17 1403 CLEARWATER 50/FAIR 16 966 53/FAIR 13 1164 56/GOOD 14 1178 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m PR. GEORGE SW 43 W 43 SMITHERS SW 59 SW 46 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 20/POOR 24 466 79/GOOD 24 1209 82/GOOD 25 1230 FT ST JOHN 30/POOR 26 856 45/FAIR 12 1332 97/GOOD 24 1934 WHITEHORSE 23/POOR 22 823 66/GOOD 23 1320 77/GOOD 20 1652 DAWSON 41/FAIR 29 603 99/GOOD 25 1918 25/POOR 17 547 WATSON LAKE 39/FAIR 28 909 48/FAIR 28 999 55/GOOD 11 1652 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m DEASE LAKE SE 57 S 48 WATSON LAKE SE 41 SE 43 WHITEHORSE E 35 SE 37 MAYO SE 26 SE 31 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 30/POOR 13 320 22/POOR 20 121 13/POOR 13 64 FRASER VALLEY 21/POOR 16 202 16/POOR 10 193 12/POOR 3 262 SRN VAN ISLD 24/POOR 12 262 19/POOR 15 138 14/POOR 7 154 CNTRL VAN ISLD 39/FAIR 19 352 25/POOR 12 275 30/POOR 12 370 NRN VAN ISLD 12/POOR 23 43 16/POOR 24 72 11/POOR 36 34 TERRACE 22/POOR 22 331 32/POOR 23 420 10/POOR 24 222 STEWART 19/POOR 20 97 14/POOR 23 49 10/POOR 29 11 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m VANCOUVER S 30 SW 43 W 52 SANDSPIT SW 39 SW 41 SW 46 PORT HARDY SW 50 SW 54 SW 41 VENTILATION GUIDELINES: POOR: 0-33 FAIR: 34-54 GOOD: 55-100 VENTILATION INDICES NORMALLY DROP TO POOR AFTER SUNSET. END/