FPCN39 CWLW 281500 SMOKE CONTROL FORECAST FOR BC AND YUKON ISSUED BY THE MOUNTAIN WEATHER SERVICE OFFICE OF ENVIRONMENT CANADA AT 7:00 AM PST TUESDAY 28 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 257 22 20/POOR 372 22 29/POOR 530 13 KAMLOOPS 12/POOR 380 2 15/POOR 494 6 50/FAIR 983 19 OKANAGAN 19/POOR 515 22 19/POOR 553 21 50/FAIR 976 15 CASTLEGAR 12/POOR 522 4 22/POOR 792 10 50/FAIR 924 17 CRANBROOK 14/POOR 992 5 23/POOR 1164 13 50/FAIR 1278 21 REVELSTOKE 14/POOR 490 14 20/POOR 659 15 50/FAIR 837 16 FORECAST UPPER WINDS FOR TUESDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m PENTICTON 0 0 W 28 W 30 CRANBROOK W 13 NW 33 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 17/POOR 599 23 21/POOR 664 26 13/POOR 563 18 100 MILE 16/POOR 996 12 17/POOR 1042 19 23/POOR 1014 18 WILLIAMS LK 14/POOR 981 13 18/POOR 1062 18 12/POOR 947 14 PUNTZI MNT 13/POOR 936 21 18/POOR 1001 33 52/FAIR 1213 18 PR. GEORGE 15/POOR 736 26 19/POOR 778 33 17/POOR 740 26 BURNS LAKE 15/POOR 759 30 25/POOR 810 37 32/POOR 874 27 SMITHERS 13/POOR 549 30 17/POOR 576 37 20/POOR 612 28 FORECAST UPPER WINDS FOR TUESDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m PR. GEORGE W 39 W 63 SMITHERS W 56 W 70 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 393 21 12/POOR 389 27 16/POOR 411 17 FT STJOHN 15/POOR 722 40 13/POOR 706 43 15/POOR 716 37 WHITEHORSE 21/POOR 762 27 17/POOR 748 28 60/GOOD 938 17 DAWSON 35/FAIR 537 11 13/POOR 396 25 62/GOOD 705 15 WATSON LAKE 13/POOR 711 17 12/POOR 695 32 13/POOR 700 31 FORECAST UPPER WINDS FOR TUESDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m DEASE LAKE SW 63 W 115 WATSON LAKE W 61 W 85 WHITEHORSE SW 54 SW 85 MAYO SW 59 W 76 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 16/POOR 58 19 14/POOR 54 10 18/POOR 230 7 FRASER VLY 14/POOR 102 13 14/POOR 124 7 24/POOR 405 10 SRN VRISL 13/POOR 61 8 12/POOR 79 1 19/POOR 314 2 CNTRL VRISL 14/POOR 70 12 16/POOR 168 6 25/POOR 341 5 NRN VRISL 14/POOR 59 18 24/POOR 154 13 51/FAIR 483 19 TERRACE 13/POOR 253 22 34/FAIR 408 25 27/POOR 429 14 STEWART 39/FAIR 219 23 15/POOR 68 25 13/POOR 35 21 FORECAST UPPER WINDS FOR TUESDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m VANCOUVER SE 9. SW 19 SW 24 SANDSPIT SW 29 SW 41 SW 50 PORT HARDY SE 12 SW 11 SW 28 VENTILATION GUIDELINES: 0-33.....POOR 34-54.....FAIR 55-100.....GOOD. VENTILATION INDICES NORMALLY DROP TO POOR AFTER SUNSET END/MWSO $$$$^^