FPCN39 CWLW 291500 SMOKE CONTROL FORECAST FOR BC AND YUKON ISSUED BY THE MOUNTAIN WEATHER SERVICE OFFICE OF ENVIRONMENT CANADA AT 7:00 AM PST WEDNESDAY 29 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 13/POOR 259 22 21/POOR 431 14 53/FAIR 581 18 KAMLOOPS 13/POOR 382 19 40/FAIR 626 16 28/POOR 582 20 OKANAGAN 19/POOR 518 18 33/POOR 723 12 38/FAIR 605 17 CASTLEGAR 18/POOR 659 5 22/POOR 686 12 38/FAIR 945 11 CRANBROOK 31/POOR 1135 13 50/FAIR 1353 15 50/FAIR 1337 18 REVELSTOKE 22/POOR 616 12 50/FAIR 838 16 12/POOR 479 13 FORECAST UPPER WINDS FOR WEDNESDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m PENTICTON 0 0 W 26 W 37 CRANBROOK W 13 W 46 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 25/POOR 692 20 12/POOR 555 16 15/POOR 604 19 100 MILE 13/POOR 964 28 82/GOOD 1357 21 13/POOR 981 14 WILLIAMS LK 13/POOR 960 27 14/POOR 977 13 12/POOR 957 14 PUNTZI MNT 16/POOR 955 28 22/POOR 1018 22 19/POOR 997 18 PR. GEORGE 16/POOR 708 20 14/POOR 721 20 13/POOR 723 21 BURNS LAKE 25/POOR 833 32 16/POOR 753 22 13/POOR 739 19 SMITHERS 98/GOOD 999 30 16/POOR 562 23 12/POOR 534 21 FORECAST UPPER WINDS FOR WEDNESDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m PR. GEORGE W 61 W 83 SMITHERS SW 76 W 107 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 42 22/POOR 446 9 65/GOOD 759 8 FT STJOHN 78/GOOD 1013 44 15/POOR 719 35 68/GOOD 1171 20 WHITEHORSE 100/GOOD 1791 30 84/GOOD 991 20 15/POOR 842 4 DAWSON 100/GOOD 989 28 67/GOOD 698 22 12/POOR 371 5 WATSON LAKE 17/POOR 739 40 17/POOR 730 35 100/GOOD 1785 8 FORECAST UPPER WINDS FOR WEDNESDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m DEASE LAKE W 41 W 63 WATSON LAKE W 48 W 43 WHITEHORSE SW 46 SW 67 MAYO W 28 SW 35 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 16/POOR 137 11 20/POOR 303 6 19/POOR 120 13 FRASER VLY 13/POOR 94 13 23/POOR 447 5 14/POOR 105 11 SRN VRISL 13/POOR 75 8 15/POOR 245 2 14/POOR 69 5 CNTRL VRISL 14/POOR 118 6 19/POOR 337 2 18/POOR 174 9 NRN VRISL 16/POOR 89 14 17/POOR 147 8 12/POOR 48 9 TERRACE 25/POOR 428 14 13/POOR 245 13 12/POOR 252 12 STEWART 29/POOR 200 20 16/POOR 83 21 12/POOR 33 17 FORECAST UPPER WINDS FOR WEDNESDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m VANCOUVER S 9. W 22 W 33 SANDSPIT W 53 W 74 W 87 PORT HARDY S 20 W 33 W 52 VENTILATION GUIDELINES: 0-33.....POOR 34-54.....FAIR 55-100.....GOOD. VENTILATION INDICES NORMALLY DROP TO POOR AFTER SUNSET END/MWSO $$$$^^