FPCN39 CWLW 241500 SMOKE CONTROL FORECAST FOR BC AND YUKON ISSUED BY THE MOUNTAIN WEATHER SERVICE OFFICE OF ENVIRONMENT CANADA AT 7:00 AM PST FRIDAY 24 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 20 13/POOR 295 17 13/POOR 322 7 KAMLOOPS 14/POOR 400 9 17/POOR 508 9 14/POOR 487 7 OKANAGAN 22/POOR 540 24 20/POOR 570 20 17/POOR 547 13 CASTLEGAR 12/POOR 535 3 20/POOR 784 4 15/POOR 656 3 CRANBROOK 12/POOR 972 8 19/POOR 1141 9 15/POOR 1074 4 REVELSTOKE 14/POOR 495 12 17/POOR 630 14 15/POOR 566 9 FORECAST UPPER WINDS FOR FRIDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m PENTICTON 0 0 SW 19 W 17 CRANBROOK W 11 NW 22 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 26/POOR 655 32 21/POOR 652 27 16/POOR 614 27 100 MILE 23/POOR 1037 26 21/POOR 1060 22 16/POOR 1024 18 WILLIAMS LK 19/POOR 1008 26 18/POOR 1048 21 17/POOR 1044 19 PUNTZI MNT 13/POOR 936 16 21/POOR 1022 23 13/POOR 964 15 PR. GEORGE 23/POOR 776 36 18/POOR 758 31 14/POOR 728 30 BURNS LAKE 15/POOR 752 36 26/POOR 837 27 17/POOR 768 33 SMITHERS 14/POOR 557 32 24/POOR 637 28 14/POOR 552 31 FORECAST UPPER WINDS FOR FRIDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m PR. GEORGE SW 31 SW 39 SMITHERS SW 65 SW 67 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 15/POOR 424 26 13/POOR 397 31 21/POOR 499 24 FT STJOHN 18/POOR 743 44 15/POOR 717 44 12/POOR 700 38 WHITEHORSE 100/GOOD 1541 36 36/FAIR 838 26 39/FAIR 837 44 DAWSON 100/GOOD 1253 23 67/GOOD 728 21 50/FAIR 659 20 WATSON LAKE 25/POOR 768 36 14/POOR 711 36 12/POOR 702 23 FORECAST UPPER WINDS FOR FRIDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m DEASE LAKE S 65 SW 89 WATSON LAKE SW 78 SW 91 WHITEHORSE S 78 SW130 MAYO S 50 SW 48 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 49 18 13/POOR 22 7 12/POOR 32 5 FRASER VLY 14/POOR 99 13 13/POOR 92 5 13/POOR 120 6 SRN VRISL 14/POOR 66 10 14/POOR 79 10 15/POOR 81 13 CNTRL VRISL 13/POOR 61 12 14/POOR 121 3 14/POOR 122 10 NRN VRISL 17/POOR 73 30 17/POOR 70 21 13/POOR 66 10 TERRACE 14/POOR 263 27 14/POOR 258 22 14/POOR 260 24 STEWART 14/POOR 52 29 16/POOR 49 25 21/POOR 106 28 FORECAST UPPER WINDS FOR FRIDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m VANCOUVER SE 18 S 24 SW 26 SANDSPIT S 75 S 74 S 81 PORT HARDY S 66 S 59 S 50 VENTILATION GUIDELINES: 0-33.....POOR 34-54.....FAIR 55-100.....GOOD. VENTILATION INDICES NORMALLY DROP TO POOR AFTER SUNSET END/WJW $$$$^^