FPCN39 CWLW 091500 SMOKE CONTROL FORECAST FOR BC AND YUKON ISSUED BY THE MOUNTAIN WEATHER SERVICE OFFICE OF ENVIRONMENT CANADA AT 7:00 AM PST THURSDAY 9 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 40/FAIR 514 20 60/GOOD 580 18 68/GOOD 570 25 KAMLOOPS 29/POOR 541 29 79/GOOD 711 20 72/GOOD 782 21 OKANAGAN 56/GOOD 768 32 100/GOOD 874 22 92/GOOD 1022 19 CASTLEGAR 15/POOR 579 19 49/FAIR 799 12 71/GOOD 1169 15 CRANBROOK 23/POOR 1094 18 43/FAIR 1296 13 100/GOOD 2028 20 REVELSTOKE 12/POOR 463 20 30/POOR 627 14 78/GOOD 954 13 FORECAST UPPER WINDS FOR THURSDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m PENTICTON SE 11 S 22 SW 41 CRANBROOK SW 9 SW 31 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 80/GOOD 850 38 100/GOOD 1200 25 14/POOR 574 29 100 MILE 30/POOR 1098 38 82/GOOD 1246 26 45/FAIR 1239 27 WILLIAMS LK 50/FAIR 1131 34 100/GOOD 1400 23 17/POOR 999 28 PUNTZI MNT 14/POOR 942 26 53/FAIR 1208 27 14/POOR 934 37 PR. GEORGE 80/GOOD 1708 38 100/GOOD 1800 31 12/POOR 704 30 BURNS LAKE 76/GOOD 1700 30 100/GOOD 1800 27 12/POOR 731 19 SMITHERS 75/GOOD 1600 25 100/GOOD 1800 24 12/POOR 534 15 FORECAST UPPER WINDS FOR THURSDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m PR. GEORGE S 59 S 52 SMITHERS S 54 S 106 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 413 8 19/POOR 533 16 13/POOR 424 8 FT STJOHN 13/POOR 721 28 32/POOR 843 29 15/POOR 727 27 WHITEHORSE 13/POOR 729 12 15/POOR 787 23 13/POOR 738 19 DAWSON 12/POOR 413 25 16/POOR 418 8 12/POOR 377 29 WATSON LAKE 12/POOR 709 20 14/POOR 764 2 12/POOR 716 13 FORECAST UPPER WINDS FOR THURSDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m DEASE LAKE SE 31 S 61 WATSON LAKE SE 46 SE 54 WHITEHORSE SE 35 SE 44 MAYO SE 30 S 35 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 63/GOOD 1245 43 100/GOOD 1500 18 34/FAIR 132 32 FRASER VLY 65/GOOD 1254 30 90/GOOD 1400 18 17/POOR 127 26 SRN VRISL 60/GOOD 1105 30 100/GOOD 1500 25 17/POOR 55 26 CNTRL VRISL 65/GOOD 1176 24 100/GOOD 1331 21 21/POOR 91 23 NRN VRISL 78/GOOD 406 23 100/GOOD 1200 26 17/POOR 69 29 TERRACE 18/POOR 308 17 65/GOOD 800 16 13/POOR 253 20 STEWART 15/GOOD 117 13 84/GOOD 511 17 14/POOR 53 15 FORECAST UPPER WINDS FOR THURSDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m VANCOUVER SE 57 S 76 S 61 SANDSPIT S 40 S 44 S 44 PORT HARDY S 81 S 100 S 93 VENTILATION GUIDELINES: 0-33.....POOR 34-54.....FAIR 55-100.....GOOD. VENTILATION INDICES NORMALLY DROP TO POOR AFTER SUNSET END/ $$$$^^