FPCN39 CWLW 231330 SMOKE CONTROL FORECAST FOR BC AND YUKON ISSUED BY THE MOUNTAIN WEATHER CENTRE OF ENVIRONMENT CANADA AT 7:00 AM PDT THURSDAY 23 AUGUST 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. 23-August-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 63/GOOD 18 968 79/GOOD 17 1384 72/GOOD 14 1401 KAMLOOPS 75/GOOD 17 1405 99/GOOD 23 2360 99/GOOD 21 2010 OKANAGAN 64/GOOD 18 1204 99/GOOD 16 2698 92/GOOD 13 2505 CASTLEGAR 50/FAIR 12 1241 99/GOOD 19 2497 95/GOOD 13 2696 CRANBROOK 33/FAIR 15 1263 99/GOOD 24 2852 99/GOOD 19 3183 REVELSTOKE 43/FAIR 12 1034 62/GOOD 10 1726 74/GOOD 12 1881 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m PENTICTON 0 0 S 35 SW 46 CRANBROOK SW 37 SW 63 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 28/POOR 18 753 96/GOOD 17 2274 83/GOOD 13 2230 100 MILE 56/GOOD 25 1377 99/GOOD 28 2778 99/GOOD 22 2997 WILLIAMS LAKE 36/FAIR 21 1202 99/GOOD 21 3083 98/GOOD 15 2978 PUNTZI MTN 23/POOR 21 1037 99/GOOD 23 3070 99/GOOD 21 2857 PRINCE GEORGE 32/POOR 22 895 68/GOOD 16 1637 88/GOOD 16 2229 BURNS LAKE 17/POOR 7 769 99/GOOD 20 2445 98/GOOD 19 2159 SMITHERS 31/POOR 5 1388 97/GOOD 14 2657 78/GOOD 14 1894 MCBRIDE 46/FAIR 10 1526 74/GOOD 14 1967 86/GOOD 16 2194 CLEARWATER 55/GOOD 14 1143 97/GOOD 20 1875 84/GOOD 14 1985 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m PR. GEORGE SW 30 S 24 SMITHERS S 35 S 35 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 25/POOR 10 690 39/FAIR 8 1164 64/GOOD 27 882 FT ST JOHN 27/POOR 14 950 99/GOOD 24 2966 99/GOOD 42 2710 WHITEHORSE 38/FAIR 12 1200 62/GOOD 10 1974 70/GOOD 9 2470 DAWSON 18/POOR 16 477 89/GOOD 13 2275 73/GOOD 10 2076 WATSON LAKE 54/FAIR 12 1543 58/GOOD 8 2142 99/GOOD 22 2601 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m DEASE LAKE S 9 SE 9 WATSON LAKE SE 17 S 22 WHITEHORSE S 11 0 0 MAYO E 19 E 24 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 60/GOOD 29 420 66/GOOD 21 682 27/POOR 8 445 FRASER VALLEY 54/FAIR 24 484 56/GOOD 14 838 44/FAIR 8 1006 SRN VAN ISLD 48/FAIR 23 386 61/GOOD 18 719 15/POOR 5 227 CNTRL VAN ISLD 61/GOOD 23 570 72/GOOD 20 856 33/FAIR 8 635 NRN VAN ISLD 17/POOR 21 91 47/FAIR 20 435 47/FAIR 23 382 TERRACE 21/POOR 14 382 63/GOOD 11 1426 60/GOOD 14 1086 STEWART 25/POOR 14 220 43/FAIR 9 821 26/POOR 9 383 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m VANCOUVER S 31 SW 35 SW 54 SANDSPIT S 46 SW 46 S 43 PORT HARDY S 46 S 41 S 31 VENTILATION GUIDELINES: POOR: 0-33 FAIR: 34-54 GOOD: 55-100 VENTILATION INDICES NORMALLY DROP TO POOR AFTER SUNSET. END/