FPCN39 CWLW 211430 SMOKE CONTROL FORECAST FOR BC AND YUKON ISSUED BY THE MOUNTAIN WEATHER CENTRE OF ENVIRONMENT CANADA AT 7:00 AM PST THURSDAY 21 DECEMBER 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 38/FAIR 495 12 15/POOR 306 13 20/POOR 358 11 KAMLOOPS 47/FAIR 622 19 15/POOR 392 21 28/POOR 573 17 OKANAGAN 30/POOR 583 24 55/GOOD 752 21 36/FAIR 883 18 CASTLEGAR 30/POOR 668 20 36/FAIR 738 18 21/POOR 688 12 CRANBROOK 15/POOR 1024 3 22/POOR 1197 9 24/POOR 1158 11 REVELSTOKE 26/POOR 602 19 27/POOR 645 21 15/POOR 534 14 FORECAST UPPER WINDS FOR THURSDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m PENTICTON SE 9. S 19 S 43 CRANBROOK 0 0 S 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 58/GOOD 806 29 59/GOOD 861 24 36/FAIR 797 17 100 MILE 58/GOOD 1209 29 15/POOR 975 29 39/FAIR 1191 23 WILLIAMS LK 52/FAIR 1195 27 15/POOR 980 26 36/FAIR 1185 22 PUNTZI MNT 29/POOR 1051 19 31/POOR 1066 24 38/FAIR 1221 15 PR. GEORGE 15/POOR 734 21 20/POOR 829 18 15/POOR 752 18 BURNS LAKE 42/FAIR 1002 22 14/POOR 740 29 37/FAIR 928 24 SMITHERS 40/FAIR 818 22 17/POOR 572 28 45/FAIR 782 23 FORECAST UPPER WINDS FOR THURSDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m PR. GEORGE SE 43 SE 50 SMITHERS SE 44 SE 46 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 422 21 15/POOR 504 6 15/POOR 441 23 FT STJOHN 14/POOR 741 17 14/POOR 743 12 47/FAIR 1031 19 WHITEHORSE 14/POOR 759 7 12/POOR 719 14 13/POOR 737 21 DAWSON 12/POOR 382 19 12/POOR 378 10 12/POOR 373 18 WATSON LAKE 12/POOR 702 2 13/POOR 724 7 13/POOR 713 22 FORECAST UPPER WINDS FOR THURSDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m DEASE LAKE E 41 SE 48 WATSON LAKE SE 33 SE 44 WHITEHORSE E 20 E 28 MAYO NE 20 NE 15 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 90/GOOD 311 42 49/FAIR 163 40 12/POOR 11 32 FRASER VLY 35/FAIR 156 26 13/POOR 81 24 12/POOR 70 29 SRN VRISL 100/GOOD 494 30 27/POOR 90 37 12/POOR 25 35 CNTRL VRISL 92/GOOD 372 33 35/FAIR 134 33 12/POOR 45 22 NRN VRISL 100/GOOD 338 52 16/POOR 49 47 13/POOR 48 21 TERRACE 57/GOOD 362 31 42/FAIR 444 23 26/POOR 372 21 STEWART 43/FAIR 237 22 13/POOR 40 30 12/POOR 24 24 FORECAST UPPER WINDS FOR THURSDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m VANCOUVER SE 40 S 50 S 46 SANDSPIT E 44 SE 46 SE 50 PORT HARDY SE 59 S 69 SE 61 VENTILATION GUIDELINES: 0-33.....POOR 34-54.....FAIR 55-100.....GOOD. VENTILATION INDICES NORMALLY DROP TO POOR AFTER SUNSET END/