FPCN39 CWLW 071400 SMOKE CONTROL FORECAST FOR COASTAL BC AND THE INTERIOR INCLUDING THE NORTHEAST ISSUED BY THE MOUNTAIN WEATHER SERVICE OFFICE OF ENVIRONMENT CANADA AT 7:00 AM PDT THURSDAY 7 OCTOBER 1999 FOR TODAY. VENTILATION INDICES AND MIXING HEIGHTS. MIXING HEIGHTS IN METRES ABOVE STATION 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 23/POOR 147 20 100/GOOD 864 16 100/GOOD 480 19 KAMLOOPS 25/POOR 152 19 90/GOOD 815 19 100/GOOD 866 27 OKANAGAN 16/POOR 60 15 55/GOOD 640 13 100/GOOD 663 17 CASTLEGAR 12/POOR 22 2 55/GOOD 845 9 100/GOOD 988 20 CRANBROOK 14/POOR 60 11 100/GOOD 1175 14 100/GOOD 1217 29 REVELSTOKE 17/POOR 109 11 61/GOOD 751 10 100/GOOD 862 16 FORCAST UPPER WINDS FOR THURSDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m PENTICTON 0 0 W 17 W 28 CRANBROOK W 11 W 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 15/POOR 60 10 63/GOOD 403 23 100/GOOD 1562 20 100 MILE 20/POOR 155 8 100/GOOD 1035 23 100/GOOD 1341 19 WILLIAMS LK 20/POOR 131 3 100/GOOD 1059 19 100/GOOD 1652 19 PUNTZI MNT 20/POOR 103 15 100/GOOD 1427 30 100/GOOD 2111 30 PR. GEORGE 20/POOR 106 11 87/GOOD 685 12 100/GOOD 1288 24 BURNS LAKE 15/POOR 55 22 73/GOOD 815 23 100/GOOD 1240 27 SMITHERS 13/POOR 33 19 69/GOOD 843 19 100/GOOD 1010 22 FORCAST UPPER WINDS FOR THURSDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m PR. GEORGE SW 35 SW 43 SMITHERS SW 46 SW 74 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 15/POOR 70 11 45/FAIR 800 20 100/GOOD 662 28 FT STJOHN 22/POOR 152 16 93/GOOD 532 26 100/GOOD 2219 36 WHITEHORSE 100/GOOD 418 33 100/GOOD 726 32 100/GOOD 1013 39 DAWSON 100/GOOD 542 35 100/GOOD 910 40 100/GOOD 871 24 WATSON LAKE 62/GOOD 324 27 73/GOOD 306 23 100/GOOD 1433 36 FORCAST UPPER WINDS FOR THURSDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m DEASE LAKE S 26 SW 52 WATSON LAKE S 28 SW 41 WHITEHORSE S 30 S 46 MAYO SE 26 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 13/POOR 30 12 52/FAIR 248 10 62/GOOD 130 27 FRASER VLY 23/POOR 147 20 50/FAIR 864 16 100/GOOD 480 25 SRN VRISL 13/POOR 29 8 53/FAIR 166 17 60/GOOD 550 22 CNTRL VRISL 13/POOR 31 5 43/FAIR 489 18 100/GOOD 782 20 NRN VRISL 15/POOR 61 12 44/FAIR 96 31 87/GOOD 669 25 TERRACE 100/GOOD 471 21 100/GOOD 609 28 94/GOOD 599 17 STEWART 52/FAIR 274 20 55/GOOD 244 14 60/GOOD 340 18 FORCAST UPPER WINDS FOR THURSDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m VANCOUVER S 18 SW 28 SW 35 SANDSPIT S 57 SW 59 SW 54 PORT HARDY S 51 S 63 SW 69 VENTILATION GUIDELINES: 0-33.....POOR 34-54.....FAIR 55-100.....GOOD. VENTILATION INDICES NORMALLY DROP TO POOR AFTER SUNSET END/MWSO $$$$^^