FPCN39 CWLW 151500 SMOKE CONTROL FORECAST FOR BC AND YUKON ISSUED BY THE MOUNTAIN WEATHER SERVICE OFFICE OF ENVIRONMENT CANADA AT 7:00 AM PST WEDNESDAY 15 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 51/FAIR 613 28 100/GOOD 645 29 22/POOR 324 22 KAMLOOPS 51/FAIR 613 28 79/GOOD 644 35 51/FAIR 613 28 OKANAGAN 51/FAIR 613 28 64/GOOD 628 29 100/GOOD 1040 26 CASTLEGAR 17/POOR 575 22 17/POOR 575 22 85/GOOD 950 19 CRANBROOK 54/FAIR 1284 17 15/POOR 991 26 55/GOOD 1162 24 REVELSTOKE 22/POOR 566 22 22/POOR 566 22 12/POOR 456 19 FORECAST UPPER WINDS FOR WEDNESDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m PENTICTON S 9. SW 22 W 61 CRANBROOK SW 17 SW 52 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 17/POOR 603 36 17/POOR 603 36 13/POOR 564 17 100 MILE 29/POOR 1061 36 29/POOR 1061 36 16/POOR 1003 21 WILLIAMS LK 16/POOR 989 35 16/POOR 989 35 15/POOR 983 24 PUNTZI MNT 23/POOR 1024 18 100/GOOD 1715 42 16/POOR 951 32 PR. GEORGE 15/POOR 729 34 15/POOR 729 34 14/POOR 717 28 BURNS LAKE 15/POOR 740 25 100/GOOD 1096 37 15/POOR 740 25 SMITHERS 22/POOR 615 30 22/POOR 615 30 24/POOR 606 31 FORECAST UPPER WINDS FOR WEDNESDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m PR. GEORGE SW 26 SW 33 SMITHERS SW 19 SW 41 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 13/POOR 417 10 28/POOR 672 9 27/POOR 650 12 FT STJOHN 22/POOR 878 12 19/POOR 878 8 29/POOR 795 36 WHITEHORSE 51/FAIR 996 26 20/POOR 791 21 14/POOR 731 27 DAWSON 17/POOR 423 30 13/POOR 382 31 12/POOR 380 13 WATSON LAKE 33/POOR 949 15 40/FAIR 921 23 12/POOR 713 15 FORECAST UPPER WINDS FOR WEDNESDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m DEASE LAKE SE 17 S 20 WATSON LAKE SE 17 SW 24 WHITEHORSE S 26 S 30 MAYO SE 20 S 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 19/POOR 62 35 13/POOR 15 27 12/POOR 11 17 FRASER VLY 27/POOR 179 32 13/POOR 81 33 12/POOR 71 23 SRN VRISL 15/POOR 46 36 12/POOR 26 35 12/POOR 25 27 CNTRL VRISL 17/POOR 79 28 21/POOR 107 28 50/FAIR 328 16 NRN VRISL 21/POOR 89 31 13/POOR 38 35 13/POOR 39 30 TERRACE 38/FAIR 428 24 38/FAIR 428 24 17/POOR 286 20 STEWART 13/POOR 46 20 13/POOR 46 20 36/FAIR 203 21 FORECAST UPPER WINDS FOR WEDNESDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m VANCOUVER SW 25 SW 43 W 52 SANDSPIT W 11 W 31 W 61 PORT HARDY SW 37 SW 41 W 54 VENTILATION GUIDELINES: 0-33.....POOR 34-54.....FAIR 55-100.....GOOD. VENTILATION INDICES NORMALLY DROP TO POOR AFTER SUNSET END/MWSO $$$$^^