FPCN39 CWLW 071400 SMOKE CONTROL FORECAST FOR BC AND YUKON ISSUED BY THE MOUNTAIN WEATHER CENTRE OF ENVIRONMENT CANADA AT 7:00 AM PDT THURSDAY 7 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 744 18 100/GOOD 885 21 100/GOOD 1754 16 KAMLOOPS 34/FAIR 549 21 100/GOOD 1075 31 100/GOOD 2091 18 OKANAGAN 46/FAIR 715 19 100/GOOD 1745 23 100/GOOD 2189 22 CASTLEGAR 29/POOR 719 13 100/GOOD 1553 21 100/GOOD 1173 16 CRANBROOK 32/POOR 1175 14 100/GOOD 2164 27 31/POOR 1088 19 REVELSTOKE 48/FAIR 779 14 100/GOOD 1701 19 100/GOOD 1365 12 FORECAST UPPER WINDS FOR THURSDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m PENTICTON 0 0 NW 22 NW 31 CRANBROOK W 11 NW 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 66/GOOD 972 25 31/POOR 683 16 100/GOOD 1786 21 100 MILE 18/POOR 1001 29 100/GOOD 1507 30 100/GOOD 2160 22 WILLIAMS LK 15/POOR 991 25 19/POOR 1039 16 100/GOOD 2259 21 PUNTZI MNT 29/POOR 1026 28 100/GOOD 2022 29 100/GOOD 2497 26 PR. GEORGE 35/FAIR 879 28 45/FAIR 944 17 100/GOOD 1866 24 BURNS LAKE 100/GOOD 1485 22 100/GOOD 1791 25 100/GOOD 2058 26 SMITHERS 100/GOOD 1195 19 100/GOOD 1468 16 100/GOOD 1707 24 FORECAST UPPER WINDS FOR THURSDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m PR. GEORGE W 31 W 43 SMITHERS SW 56 W 63 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 17/POOR 495 16 84/GOOD 1510 9 100/GOOD 1465 23 FT STJOHN 20/POOR 768 33 100/GOOD 1951 25 100/GOOD 2323 25 WHITEHORSE 85/GOOD 1181 22 100/GOOD 1626 17 100/GOOD 1741 12 DAWSON 99/GOOD 830 25 100/GOOD 1361 28 97/GOOD 1246 15 WATSON LAKE 32/POOR 899 17 100/GOOD 2036 9 100/GOOD 1974 25 FORECAST UPPER WINDS FOR THURSDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m DEASE LAKE S 43 SW 72 WATSON LAKE SW 41 SW 50 WHITEHORSE S 54 SW 98 MAYO S 43 S 48 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 24/POOR 159 14 44/FAIR 279 35 100/GOOD 1025 30 FRASER VLY 12/POOR 85 9 78/GOOD 637 27 100/GOOD 992 21 SRN VRISL 19/POOR 116 13 23/POOR 99 28 99/GOOD 612 27 CNTRL VRISL 23/POOR 158 14 45/FAIR 279 20 100/GOOD 1241 20 NRN VRISL 46/FAIR 246 28 54/FAIR 273 31 100/GOOD 947 22 TERRACE 60/GOOD 634 18 53/FAIR 648 13 100/GOOD 1304 16 STEWART 52/FAIR 378 14 38/FAIR 363 10 91/GOOD 640 15 FORECAST UPPER WINDS FOR THURSDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m VANCOUVER NW 12 NW 17 NW 31 SANDSPIT SW 61 SW 69 SW 78 PORT HARDY NW 14 NW 41 NW 50 VENTILATION GUIDELINES: 0-33.....POOR 34-54.....FAIR 55-100.....GOOD. VENTILATION INDICES NORMALLY DROP TO POOR AFTER SUNSET END/MTNWC $$$$^^