FPCN39 CWLW 051500 SMOKE CONTROL FORECAST FOR BC AND YUKON ISSUED BY THE MOUNTAIN WEATHER SERVICE OFFICE OF ENVIRONMENT CANADA AT 7:00 AM PST SUNDAY 5 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 80/GOOD 903 39 65/GOOD 675 24 36/FAIR 429 20 KAMLOOPS 75/GOOD 986 25 53/FAIR 733 24 33/POOR 518 26 OKANAGAN 62/GOOD 813 26 79/GOOD 1112 23 61/GOOD 798 26 CASTLEGAR 40/FAIR 848 18 42/FAIR 1045 12 45/FAIR 846 21 CRANBROOK 21/POOR 1058 14 61/GOOD 1556 18 42/FAIR 1187 29 REVELSTOKE 45/FAIR 867 17 50/FAIR 942 16 40/FAIR 798 17 FORECAST UPPER WINDS FOR SUNDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m PENTICTON S 12 S 30 SW 59 CRANBROOK SW 11 SW 41 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 19/POOR 626 20 51/FAIR 887 30 39/FAIR 807 24 100 MILE 19/POOR 1023 27 35/FAIR 1135 29 100/GOOD 1397 24 WILLIAMS LK 16/POOR 994 17 50/FAIR 1267 29 53/FAIR 1356 23 PUNTZI MNT 13/POOR 936 26 78/GOOD 1605 28 72/GOOD 1595 25 PR. GEORGE 21/POOR 785 28 64/GOOD 1131 31 39/FAIR 901 29 BURNS LAKE 15/POOR 756 28 34/FAIR 900 30 31/POOR 874 29 SMITHERS 14/POOR 566 20 14/POOR 552 26 14/POOR 555 26 FORECAST UPPER WINDS FOR SUNDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m PR. GEORGE S 40 SW 50 SMITHERS SW 46 SW 61 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 392 32 12/POOR 390 12 12/POOR 395 20 FT STJOHN 39/FAIR 917 42 48/FAIR 1006 30 50/FAIR 911 44 WHITEHORSE 13/POOR 732 19 39/FAIR 961 24 40/FAIR 933 29 DAWSON 12/POOR 379 14 12/POOR 373 24 12/POOR 385 16 WATSON LAKE 12/POOR 703 3 12/POOR 712 15 12/POOR 719 10 FORECAST UPPER WINDS FOR SUNDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m DEASE LAKE W 20 SW 41 WATSON LAKE W 35 W 39 WHITEHORSE SW 31 SW 39 MAYO W 13 W 20 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 22/POOR 79 19 42/FAIR 233 42 28/POOR 221 23 FRASER VLY 20/POOR 162 24 48/FAIR 370 28 43/FAIR 382 20 SRN VRISL 38/FAIR 291 20 52/FAIR 371 32 39/FAIR 298 21 CNTRL VRISL 31/FAIR 270 17 70/GOOD 459 30 57/GOOD 437 29 NRN VRISL 26/POOR 148 22 68/GOOD 344 50 64/GOOD 432 37 TERRACE 18/POOR 302 18 12/POOR 227 24 15/POOR 263 18 STEWART 12/POOR 33 21 14/POOR 40 21 24/POOR 134 18 FORECAST UPPER WINDS FOR SUNDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m VANCOUVER S 24 S 39 SW 41 SANDSPIT SW 37 SW 44 SW 43 PORT HARDY S 35 SW 48 SW 57 VENTILATION GUIDELINES: 0-33.....POOR 34-54.....FAIR 55-100.....GOOD. VENTILATION INDICES NORMALLY DROP TO POOR AFTER SUNSET END/MWSO $$$$^^