FPCN39 CWLW 221500 SMOKE CONTROL FORECAST FOR BC AND YUKON ISSUED BY THE MOUNTAIN WEATHER SERVICE OFFICE OF ENVIRONMENT CANADA AT 7:00 AM PST WEDNESDAY 22 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 15/POOR 275 25 21/POOR 407 13 13/POOR 299 15 KAMLOOPS 13/POOR 382 21 20/POOR 560 9 16/POOR 487 13 OKANAGAN 14/POOR 472 18 20/POOR 678 10 16/POOR 534 22 CASTLEGAR 14/POOR 546 19 25/POOR 738 14 14/POOR 636 3 CRANBROOK 13/POOR 974 14 15/POOR 1067 6 14/POOR 1054 6 REVELSTOKE 12/POOR 473 15 16/POOR 589 11 13/POOR 507 13 FORECAST UPPER WINDS FOR WEDNESDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m PENTICTON N 10 N 31 N 50 CRANBROOK N 17 N 57 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 12/POOR 565 4 16/POOR 682 16 20/POOR 642 30 100 MILE 13/POOR 969 20 15/POOR 1095 4 23/POOR 1068 27 WILLIAMS LK 12/POOR 966 9 14/POOR 1085 6 20/POOR 1077 22 PUNTZI MNT 12/POOR 928 6 14/POOR 1005 7 30/POOR 986 30 PR. GEORGE 12/POOR 712 10 18/POOR 872 9 16/POOR 763 31 BURNS LAKE 12/POOR 731 9 14/POOR 812 12 13/POOR 752 20 SMITHERS 12/POOR 538 9 13/POOR 568 15 13/POOR 563 19 FORECAST UPPER WINDS FOR WEDNESDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m PR. GEORGE NW 31 NW 57 SMITHERS NW 28 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 13/POOR 401 10 16/POOR 450 13 20/POOR 500 19 FT STJOHN 30/POOR 720 36 40/FAIR 800 34 40/FAIR 800 35 WHITEHORSE 25/POOR 755 29 48/FAIR 900 47 40/FAIR 800 43 DAWSON 13/POOR 383 44 17/POOR 400 37 21/POOR 422 23 WATSON LAKE 13/POOR 709 10 30/POOR 750 26 30/POOR 750 26 FORECAST UPPER WINDS FOR WEDNESDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m DEASE LAKE W 52 W 80 WATSON LAKE W 80 W 109 WHITEHORSE SW 78 SW126 MAYO SW 76 SW 87 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 17/POOR 72 11 13/POOR 25 14 12/POOR 20 12 FRASER VLY 17/POOR 125 28 13/POOR 105 19 13/POOR 101 8 SRN VRISL 20/POOR 134 15 15/POOR 71 16 14/POOR 75 8 CNTRL VRISL 13/POOR 68 6 13/POOR 109 8 16/POOR 131 11 NRN VRISL 14/POOR 58 16 13/POOR 62 18 14/POOR 43 33 TERRACE 14/POOR 264 14 12/POOR 300 18 13/POOR 350 26 STEWART 12/POOR 33 17 25/POOR 100 20 30/POOR 120 26 FORECAST UPPER WINDS FOR WEDNESDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m VANCOUVER NE 14 N 24 N 33 SANDSPIT S 14 S 20 SW 26 PORT HARDY SE 9. 0 0 N 17 VENTILATION GUIDELINES: 0-33.....POOR 34-54.....FAIR 55-100.....GOOD. VENTILATION INDICES NORMALLY DROP TO POOR AFTER SUNSET END/WJW $$$$^^