FPCN39 CWLW 191500 SMOKE CONTROL FORECAST FOR BC AND YUKON ISSUED BY THE MOUNTAIN WEATHER SERVICE OFFICE OF ENVIRONMENT CANADA AT 7:00 AM PST SUNDAY 19 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 26/POOR 527 7 17/POOR 303 23 21/POOR 387 15 KAMLOOPS 26/POOR 623 8 15/POOR 434 7 58/POOR 419 14 OKANAGAN 33/POOR 873 14 21/POOR 574 12 59/POOR 542 15 CASTLEGAR 15/POOR 557 14 22/POOR 858 6 40/POOR 684 17 CRANBROOK 16/POOR 1018 19 38/FAIR 1484 10 40/POOR 707 21 REVELSTOKE 14/POOR 511 13 21/POOR 679 7 41/POOR 762 14 FORECAST UPPER WINDS FOR SUNDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m PENTICTON NW 16 NW 43 NW 67 CRANBROOK NW 24 NW 61 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 728 14 17/POOR 622 18 12/POOR 558 16 100 MILE 16/POOR 1148 2 17/POOR 1023 9 26/POOR 775 13 WILLIAMS LK 18/POOR 1125 6 16/POOR 1012 11 13/POOR 990 13 PUNTZI MNT 64/GOOD 1380 14 55/FAIR 1118 38 13/POOR 934 30 PR. GEORGE 21/POOR 841 12 17/POOR 773 18 12/POOR 698 26 BURNS LAKE 40/POOR 1226 24 53/FAIR 1062 33 14/POOR 742 34 SMITHERS 40/POOR 1064 25 60/FAIR 1039 35 14/POOR 547 37 FORECAST UPPER WINDS FOR SUNDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m PR. GEORGE NW 41 NW 56 SMITHERS N 17 N 33 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 415 10 17/POOR 457 12 13/POOR 404 29 FT STJOHN 17/POOR 759 20 15/POOR 754 17 13/POOR 710 44 WHITEHORSE 67/FAIR 944 34 13/POOR 723 26 12/POOR 708 44 DAWSON 21/POOR 584 40 20/POOR 438 31 29/POOR 442 37 WATSON LAKE 16/POOR 768 16 12/POOR 709 5 17/POOR 728 46 FORECAST UPPER WINDS FOR SUNDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m DEASE LAKE W 24 W 46 WATSON LAKE W 37 W 54 WHITEHORSE SW 44 SW 54 MAYO S 30 SW 43 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 40/FAIR 318 32 31/POOR 282 14 18/POOR 244 6 FRASER VLY 29/POOR 298 18 21/POOR 302 5 23/POOR 481 5 SRN VRISL 20/POOR 423 7 28/POOR 254 11 16/POOR 281 5 CNTRL VRISL 40/FAIR 523 14 27/POOR 266 12 18/POOR 246 4 NRN VRISL 100/GOOD 519 30 18/POOR 118 10 30/POOR 298 10 TERRACE 100/GOOD 844 18 56/GOOD 526 22 13/POOR 251 27 STEWART 100/GOOD 615 24 63/GOOD 295 28 24/POOR 121 30 FORECAST UPPER WINDS FOR SUNDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m VANCOUVER NW 27 NW 33 NW 63 SANDSPIT SE 33 S 22 W 41 PORT HARDY N 22 N 35 NW 65 VENTILATION GUIDELINES: 0-33.....POOR 34-54.....FAIR 55-100.....GOOD. VENTILATION INDICES NORMALLY DROP TO POOR AFTER SUNSET END/ $$$$^^