FPCN39 CWLW 251400 SMOKE CONTROL FORECAST FOR BC AND YUKON ISSUED BY THE MOUNTAIN WEATHER CENTRE OF ENVIRONMENT CANADA AT 7:00 AM PDT FRIDAY 25 AUGUST 2000 FOR TODAY. VENTILATION INDICES AND MIXING HEIGHTS. MIXING HEIGHTS IN METRES ABOVE SEA LEVEL. AVERAGE WINDS IN KM/HR. SUBTRACT 20 FROM THE VENTILATION INDEX IN VALLEYS IF THE MIXING HEIGHT IS BELOW THE HEIGHT OF THE LOCAL HILLS. SOUTHERN INTERIOR *** TODAY *** *** TOMORROW *** ****** 7:00 AM **** **** 4:00 PM ***** ***** 4:00 PM ***** VI MXG HT Wnd VI MXG HT Wnd VI MXG HT Wnd (m) (km/h) (m) (km/h) (m) (km/h) FRSR CANYON 100/GOOD 883 17 100/GOOD 1305 17 100/GOOD 2124 14 KAMLOOPS 25/POOR 323 10 100/GOOD 1730 23 100/GOOD 2196 9 OKANAGAN 25/POOR 548 10 100/GOOD 2206 13 100/GOOD 2051 19 CASTLEGAR 16/POOR 611 1 100/GOOD 2431 17 100/GOOD 2679 14 CRANBROOK 23/POOR 1098 11 100/GOOD 3132 23 100/GOOD 3474 24 REVELSTOKE 42/FAIR 825 12 100/GOOD 1973 13 79/GOOD 1219 10 FORECAST UPPER WINDS FOR FRIDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m PENTICTON 0 0 W 20 SW 31 CRANBROOK 0 0 W 31 CENTRAL INTERIOR *** TODAY *** *** TOMORROW *** ****** 7:00 AM **** **** 4:00 PM ***** ***** 4:00 PM ***** VI MXG HT Wnd VI MXG HT Wnd VI MXG HT Wnd (m) (km/h) (m) (km/h) (m) (km/h) QUESNEL 26/POOR 682 21 100/GOOD 1987 16 100/GOOD 1627 18 100 MILE 75/GOOD 1353 23 100/GOOD 2604 20 100/GOOD 2894 20 WILLIAMS LK 24/POOR 1072 20 100/GOOD 2687 10 100/GOOD 2466 20 PUNTZI MNT 14/POOR 953 20 100/GOOD 2403 22 100/GOOD 2708 23 PR. GEORGE 40/FAIR 723 18 82/GOOD 1297 17 100/GOOD 1861 24 BURNS LAKE 60/GOOD 1102 24 100/GOOD 2094 25 100/GOOD 1917 22 SMITHERS 53/FAIR 843 21 100/GOOD 1646 20 100/GOOD 1784 19 FORECAST UPPER WINDS FOR FRIDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m PR. GEORGE W 22 SW 30 SMITHERS S 19 SW 30 NORTHERN BC/YUKON *** TODAY *** *** TOMORROW *** ****** 7:00 AM **** **** 4:00 PM ***** ***** 4:00 PM ***** VI MXG HT Wnd VI MXG HT Wnd VI MXG HT Wnd (m) (km/h) (m) (km/h) (m) (km/h) FT NLSN 40/FAIR 582 28 51/FAIR 1106 7 100/GOOD 1457 26 FT STJOHN 37/FAIR 914 21 100/GOOD 2289 24 100/GOOD 2467 23 WHITEHORSE 40/FAIR 1034 13 49/FAIR 1201 13 100/GOOD 2109 12 DAWSON 27/POOR 513 24 100/GOOD 2094 8 100/GOOD 1680 15 WATSON LAKE 50/FAIR 754 24 69/GOOD 1329 15 76/GOOD 1112 21 FORECAST UPPER WINDS FOR FRIDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m DEASE LAKE SE 9 SW 13 WATSON LAKE NW 9 W 13 WHITEHORSE SW 15 S 19 MAYO W 9 W 17 COAST *** TODAY *** *** TOMORROW *** ****** 7:00 AM **** **** 4:00 PM ***** ***** 4:00 PM ***** VI MXG HT Wnd VI MXG HT Wnd VI MXG HT Wnd (m) (km/h) (m) (km/h) (m) (km/h) VANCOUVER 39/FAIR 481 10 36/FAIR 441 10 100/GOOD 935 21 FRASER VLY 36/FAIR 526 8 46/FAIR 660 9 100/GOOD 1320 19 SRN VRISL 42/FAIR 364 15 35/FAIR 282 11 68/GOOD 516 17 CNTRL VRISL 60/GOOD 571 10 65/GOOD 703 9 100/GOOD 1247 14 NRN VRISL 17/POOR 82 23 42/FAIR 292 17 100/GOOD 1099 28 TERRACE 88/GOOD 887 21 76/GOOD 986 25 100/GOOD 1143 12 STEWART 84/GOOD 556 18 77/GOOD 847 25 79/GOOD 620 12 FORECAST UPPER WINDS FOR FRIDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m VANCOUVER 0 0 SW 17 SW 28 SANDSPIT 0 0 SW 19 SW 30 PORT HARDY S 12 S 26 SW 31 VENTILATION GUIDELINES: 0-33.....POOR 34-54.....FAIR 55-100.....GOOD. VENTILATION INDICES NORMALLY DROP TO POOR AFTER SUNSET END/ $$$$^^