FPCN39 CWLW 251500 SMOKE CONTROL FORECAST FOR BC AND YUKON ISSUED BY THE MOUNTAIN WEATHER SERVICE OFFICE OF ENVIRONMENT CANADA AT 7:00 AM PST SATURDAY 25 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 12/POOR 254 0 13/POOR 326 1 12/POOR 288 3 KAMLOOPS 15/POOR 423 7 16/POOR 549 8 15/POOR 489 9 OKANAGAN 17/POOR 559 12 15/POOR 567 6 13/POOR 552 6 CASTLEGAR 14/POOR 554 8 14/POOR 631 3 14/POOR 577 14 CRANBROOK 13/POOR 987 10 16/POOR 1096 8 24/POOR 1112 17 REVELSTOKE 13/POOR 480 4 14/POOR 599 6 12/POOR 542 4 FORECAST UPPER WINDS FOR SATURDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m PENTICTON 0 0 W 24 W 31 CRANBROOK W 11 W 43 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 24/POOR 653 27 25/POOR 693 26 18/POOR 635 23 100 MILE 24/POOR 1078 18 22/POOR 1109 21 16/POOR 1045 16 WILLIAMS LK 24/POOR 1068 17 21/POOR 1106 19 15/POOR 1052 13 PUNTZI MNT 13/POOR 936 15 15/POOR 993 16 12/POOR 970 14 PR. GEORGE 25/POOR 804 29 17/POOR 757 31 20/POOR 774 28 BURNS LAKE 15/POOR 757 25 14/POOR 746 35 13/POOR 740 28 SMITHERS 16/POOR 574 23 14/POOR 551 34 17/POOR 585 28 FORECAST UPPER WINDS FOR SATURDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m PR. GEORGE W 52 W 65 SMITHERS SW 61 W 78 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 388 11 12/POOR 391 23 12/POOR 388 26 FT STJOHN 15/POOR 735 34 13/POOR 708 34 12/POOR 699 40 WHITEHORSE 100/POOR 1296 23 33/POOR 817 44 14/POOR 722 42 DAWSON 59/POOR 684 24 42/FAIR 562 31 12/POOR 374 25 WATSON LAKE 30/POOR 893 18 13/POOR 711 22 12/POOR 698 19 FORECAST UPPER WINDS FOR SATURDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m DEASE LAKE SW 56 W 96 WATSON LAKE W 83 W 119 WHITEHORSE W 54 W 89 MAYO W 41 W 63 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 15/POOR 68 14 12/POOR 24 6 12/POOR 19 7 FRASER VLY 15/POOR 110 12 13/POOR 111 7 13/POOR 95 10 SRN VRISL 16/POOR 130 9 15/POOR 80 11 14/POOR 59 12 CNTRL VRISL 13/POOR 71 6 13/POOR 123 8 13/POOR 105 8 NRN VRISL 14/POOR 63 19 14/POOR 80 15 13/POOR 61 8 TERRACE 14/POOR 269 22 14/POOR 248 25 15/POOR 280 19 STEWART 14/POOR 109 22 21/POOR 105 28 13/POOR 100 24 FORECAST UPPER WINDS FOR SATURDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m VANCOUVER SE 9. W 15 W 28 SANDSPIT SW 55 SW 67 SW 69 PORT HARDY S 27 SW 31 W 46 VENTILATION GUIDELINES: 0-33.....POOR 34-54.....FAIR 55-100.....GOOD. VENTILATION INDICES NORMALLY DROP TO POOR AFTER SUNSET END/GF $$$$^^