FPCN39 CWLW 231430 SMOKE CONTROL FORECAST FOR BC AND YUKON ISSUED BY THE MOUNTAIN WEATHER CENTRE OF ENVIRONMENT CANADA AT 7:00 AM PST THURSDAY 23 NOVEMBER 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 13/POOR 260 27 48/FAIR 543 17 99/GOOD 670 26 KAMLOOPS 18/POOR 422 21 18/POOR 439 16 57/GOOD 619 28 OKANAGAN 27/POOR 554 30 22/POOR 527 25 72/GOOD 836 26 CASTLEGAR 15/POOR 572 10 33/POOR 781 16 33/POOR 823 11 CRANBROOK 13/POOR 989 6 22/POOR 1166 15 84/GOOD 1586 16 REVELSTOKE 18/POOR 535 20 21/POOR 580 17 38/FAIR 741 16 FORECAST UPPER WINDS FOR THURSDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m PENTICTON 0 0 SW 24 SW 44 CRANBROOK SW 19 SW 63 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 13/POOR 572 37 12/POOR 553 19 22/POOR 605 45 100 MILE 15/POOR 974 36 12/POOR 950 23 21/POOR 1007 41 WILLIAMS LK 12/POOR 950 35 12/POOR 948 19 18/POOR 990 42 PUNTZI MNT 13/POOR 933 24 37/FAIR 1108 23 100/GOOD 1440 49 PR. GEORGE 14/POOR 722 39 12/POOR 697 24 17/POOR 730 50 BURNS LAKE 19/POOR 798 35 13/POOR 731 22 42/FAIR 847 46 SMITHERS 73/GOOD 982 34 80/GOOD 1300 18 24/POOR 612 30 FORECAST UPPER WINDS FOR THURSDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m PR. GEORGE W 37 W 43 SMITHERS SW 41 SW 56 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 22/POOR 472 29 13/POOR 400 35 17/POOR 431 24 FT STJOHN 15/POOR 726 38 15/POOR 722 34 14/POOR 714 44 WHITEHORSE 12/POOR 718 2 40/FAIR 810 23 12/POOR 714 22 DAWSON 21/POOR 525 12 21/POOR 507 10 18/POOR 445 24 WATSON LAKE 21/POOR 789 29 33/POOR 785 39 13/POOR 716 24 FORECAST UPPER WINDS FOR THURSDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m DEASE LAKE SW 37 SW 69 WATSON LAKE W 74 W 91 WHITEHORSE SW 33 SW 46 MAYO SW 35 W 52 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 79/GOOD 334 38 40/FAIR 41 18 14/POOR 29 45 FRASER VLY 36/FAIR 205 31 40/FAIR 71 21 42/FAIR 302 28 SRN VRISL 70/GOOD 285 30 40/FAIR 72 24 14/POOR 43 30 CNTRL VRISL 76/GOOD 380 28 40/FAIR 65 11 65/GOOD 313 31 NRN VRISL 34/FAIR 235 31 38/FAIR 272 22 14/POOR 39 51 TERRACE 62/GOOD 636 26 47/FAIR 453 15 24/POOR 356 20 STEWART 77/GOOD 454 27 38/FAIR 200 18 13/POOR 71 11 FORECAST UPPER WINDS FOR THURSDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m VANCOUVER SW 14 W 37 W 43 SANDSPIT SW 50 SW 57 SW 59 PORT HARDY W 31 W 43 W 48 VENTILATION GUIDELINES: 0-33.....POOR 34-54.....FAIR 55-100.....GOOD. VENTILATION INDICES NORMALLY DROP TO POOR AFTER SUNSET END/