FPCN39 CWLW 211400 SMOKE CONTROL FORECAST FOR BC AND YUKON ISSUED BY THE MOUNTAIN WEATHER CENTRE OF ENVIRONMENT CANADA AT 7:00 AM PDT THURSDAY 21 SEPTEMBER 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 1309 21 100/GOOD 1895 18 83/GOOD 1402 7 KAMLOOPS 100/GOOD 1369 24 100/GOOD 2202 20 68/GOOD 1614 6 OKANAGAN 100/GOOD 1446 22 100/GOOD 2551 20 98/GOOD 1765 10 CASTLEGAR 100/GOOD 1772 17 100/GOOD 2588 14 100/GOOD 2376 7 CRANBROOK 100/GOOD 2269 22 100/GOOD 2785 19 100/GOOD 2693 6 REVELSTOKE 100/GOOD 1486 19 100/GOOD 2303 14 85/GOOD 1869 6 FORECAST UPPER WINDS FOR THURSDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m PENTICTON 0 0 SW 19 W 41 CRANBROOK 0 0 W 26 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 100/GOOD 1389 25 100/GOOD 1942 20 65/GOOD 1572 7 100 MILE 100/GOOD 1771 20 100/GOOD 2671 19 59/GOOD 2114 7 WILLIAMS LK 100/GOOD 1665 23 100/GOOD 2577 19 49/FAIR 2018 4 PUNTZI MNT 100/GOOD 1806 23 100/GOOD 2158 18 40/FAIR 1838 2 PR. GEORGE 100/GOOD 1771 24 100/GOOD 2177 17 100/GOOD 1722 12 BURNS LAKE 100/GOOD 1467 21 100/GOOD 2015 12 90/GOOD 1542 13 SMITHERS 100/GOOD 1208 19 99/GOOD 1817 8 81/GOOD 1289 12 FORECAST UPPER WINDS FOR THURSDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m PR. GEORGE NW 19 NW 19 SMITHERS N 19 NW 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 16/POOR 475 13 100/GOOD 2057 9 100/GOOD 1271 20 FT STJOHN 36/FAIR 999 14 96/GOOD 2504 6 100/GOOD 1685 21 WHITEHORSE 24/POOR 837 15 81/GOOD 1229 16 46/FAIR 902 31 DAWSON 22/POOR 481 16 30/POOR 574 16 18/POOR 427 21 WATSON LAKE 15/POOR 770 5 84/GOOD 1534 9 100/GOOD 1457 25 FORECAST UPPER WINDS FOR THURSDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m DEASE LAKE N 20 N 33 WATSON LAKE N 35 NW 41 WHITEHORSE N 22 NW 35 MAYO NW 15 NW 33 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 49/FAIR 202 20 100/GOOD 711 27 53/FAIR 693 9 FRASER VLY 29/POOR 199 28 100/GOOD 1341 27 100/GOOD 1264 11 SRN VRISL 23/POOR 108 25 90/GOOD 378 30 53/FAIR 512 9 CNTRL VRISL 24/POOR 146 18 100/GOOD 1080 18 95/GOOD 902 6 NRN VRISL 16/POOR 85 18 23/POOR 140 15 35/FAIR 847 10 TERRACE 91/GOOD 745 17 100/GOOD 1426 10 36/FAIR 952 4 STEWART 40/FAIR 310 13 28/POOR 451 5 35/FAIR 339 11 FORECAST UPPER WINDS FOR THURSDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m VANCOUVER W 18 W 37 W 50 SANDSPIT NW 38 NW 44 NW 63 PORT HARDY W 35 NW 57 NW 74 VENTILATION GUIDELINES: 0-33.....POOR 34-54.....FAIR 55-100.....GOOD. VENTILATION INDICES NORMALLY DROP TO POOR AFTER SUNSET END/LM $$$$^^