FPCN39 CWLW 041500 SMOKE CONTROL FORECAST FOR BC AND YUKON ISSUED BY THE MOUNTAIN WEATHER SERVICE OFFICE OF ENVIRONMENT CANADA AT 7:00 AM PST TUESDAY 4 JANUARY 2000 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 100/GOOD 755 30 100/GOOD 293 22 85/GOOD 986 12 KAMLOOPS 100/GOOD 474 31 100/GOOD 693 30 85/GOOD 1154 11 OKANAGAN 100/GOOD 729 36 100/GOOD 1132 31 85/GOOD 1153 10 CASTLEGAR 100/GOOD 827 23 100/GOOD 763 28 85/GOOD 1477 15 CRANBROOK 61/GOOD 1247 21 100/GOOD 1265 32 85/GOOD 2077 22 REVELSTOKE 100/GOOD 814 22 100/GOOD 689 22 85/GOOD 514 15 FORECAST UPPER WINDS FOR TUESDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m PENTICTON W 20 W 30 W60 CRANBROOK W 20 W 30 W60 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 100/GOOD 585 34 100/GOOD 568 32 60/GOOD 584 21 100 MILE 100/GOOD 991 37 100/GOOD 1341 28 60/GOOD 1502 12 WILLIAMS LK 100/GOOD 962 32 100/GOOD 981 26 60/GOOD 1129 17 PUNTZI MNT 100/GOOD 1052 42 100/GOOD 919 31 60/GOOD 1198 19 PR. GEORGE 100/GOOD 735 32 100/GOOD 703 36 60/GOOD 714 25 BURNS LAKE 100/GOOD 871 22 100/GOOD 737 35 60/GOOD 783 26 SMITHERS 100/GOOD 640 19 100/GOOD 552 28 60/GOOD 542 23 FORECAST UPPER WINDS FOR TUESDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m PR. GEORGE W 20 W 40 W60 SMITHERS W 20 W 40 W60 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 441 5 23/POOR 619 9 12/POOR 412 2 FT STJOHN 33/POOR 909 19 25/POOR 866 18 33/POOR 824 40 WHITEHORSE 12/POOR 734 17 12/POOR 715 18 12/POOR 708 21 DAWSON 12/POOR 381 25 12/POOR 377 29 13/POOR 394 29 WATSON LAKE 12/POOR 702 14 12/POOR 692 12 12/POOR 693 18 FORECAST UPPER WINDS FOR TUESDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m DEASE LAKE W 30 W 60 WATSON LAKE W 17 W 30 WHITEHORSE SW 30 W 50 MAYO SE 30 S 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 100/GOOD 166 43 100/GOOD 23 38 16/POOR 95 3 FRASER VLY 100/GOOD 315 40 100/GOOD 123 29 22/POOR 263 11 SRN VRISL 100/GOOD 593 41 100/GOOD 101 34 26/POOR 209 8 CNTRL VRISL 100/GOOD 373 35 100/GOOD 44 31 53/FAIR 508 7 NRN VRISL 97/GOOD 429 43 100/GOOD 228 33 53/FAIR 48 24 TERRACE 100/GOOD 422 17 100/GOOD 270 19 53/FAIR 260 23 STEWART 100/GOOD 196 15 100/GOOD 52 19 53/FAIR 69 24 FORECAST UPPER WINDS FOR TUESDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m VANCOUVER W50 W50 SANDSPIT W50 W50 PORT HARDY W50 W50 VENTILATION GUIDELINES: 0-33.....POOR 34-54.....FAIR 55-100.....GOOD. VENTILATION INDICES NORMALLY DROP TO POOR AFTER SUNSET END/ $$$$^^