FPCN39 CWLW 011500 SMOKE CONTROL FORECAST FOR BC AND YUKON ISSUED BY THE MOUNTAIN WEATHER SERVICE OFFICE OF ENVIRONMENT CANADA AT 7:00 AM PST WEDNESDAY 1 DECEMBER 1999 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 36/FAIR 492 9 61/GOOD 588 34 67/GOOD 1373 16 KAMLOOPS 14/POOR 404 11 51/FAIR 894 26 63/GOOD 1368 30 OKANAGAN 33/POOR 656 15 51/FAIR 1000 20 65/GOOD 1469 27 CASTLEGAR 27/POOR 761 10 52/FAIR 1031 15 61/GOOD 1583 16 CRANBROOK 28/POOR 1192 13 54/FAIR 1105 19 62/GOOD 1134 15 REVELSTOKE 16/POOR 531 6 53/FAIR 968 15 63/GOOD 1299 19 FORECAST UPPER WINDS FOR WEDNESDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m PENTICTON 0 0 W 17 W 33 CRANBROOK W 19 W 54 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 16/POOR 610 20 54/FAIR 1012 25 64/GOOD 927 11 100 MILE 19/POOR 1028 18 49/FAIR 991 23 63/GOOD 958 22 WILLIAMS LK 13/POOR 973 18 54/FAIR 1011 32 63/GOOD 965 14 PUNTZI MNT 26/POOR 1053 22 54/FAIR 933 30 61/GOOD 1004 20 PR. GEORGE 17/POOR 770 20 50/FAIR 963 31 62/GOOD 1023 14 BURNS LAKE 23/POOR 822 24 53/FAIR 753 29 52/FAIR 1029 22 SMITHERS 28/POOR 672 23 54/FAIR 557 24 51/FAIR 1013 20 FORECAST UPPER WINDS FOR WEDNESDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m PR. GEORGE W 41 W 41 SMITHERS SW 35 W 39 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 12/POOR 407 9 18/POOR 515 11 18/POOR 571 5 FT STJOHN 13/POOR 721 30 15/POOR 745 23 12/POOR 707 31 WHITEHORSE 36/FAIR 862 34 13/POOR 726 28 13/POOR 719 35 DAWSON 33/FAIR 611 34 23/POOR 453 34 15/POOR 411 8 WATSON LAKE 20/POOR 807 17 30/POOR 807 37 12/POOR 704 19 FORECAST UPPER WINDS FOR WEDNESDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m DEASE LAKE W 22 W 39 WATSON LAKE W 33 W 44 WHITEHORSE SW 39 W 69 MAYO 0 0 SW 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 23/POOR 249 8 41/FAIR 176 51 43/FAIR 284 42 FRASER VLY 16/POOR 200 9 44/FAIR 315 34 42/FAIR 400 26 SRN VRISL 21/POOR 279 7 53/FAIR 368 37 47/FAIR 243 28 CNTRL VRISL 27/POOR 350 9 54/FAIR 106 34 53/FAIR 561 27 NRN VRISL 63/GOOD 309 28 60/GOOD 582 34 54/FAIR 458 27 TERRACE 59/GOOD 560 22 64/GOOD 963 24 33/POOR 475 13 STEWART 17/POOR 70 24 52/FAIR 728 18 16/POOR 62 18 FORECAST UPPER WINDS FOR WEDNESDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m VANCOUVER S 11 SW 19 SW 28 SANDSPIT SW 27 SW 30 SW 31 PORT HARDY 0 0 SW 15 SW 24 VENTILATION GUIDELINES: 0-33.....POOR 34-54.....FAIR 55-100.....GOOD. VENTILATION INDICES NORMALLY DROP TO POOR AFTER SUNSET END/MWSO $$$$^^