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If you are not a subscriber yet, enter basic when asked to login. 2 FPCN39 CWLW 111430 SMOKE CONTROL FORECAST FOR COASTAL BC AND THE INTERIOR INCLUDING THE NORTHEAST ISSUED BY THE MOUNTAIN WEATHER SERVICE OFFICE OF ENVIRONMENT CANADA AT 8:00 AM PDT FRIDAY 11 OCTOBER 1996 FOR TODAY. VENTILATION INDICES (TEMPERATURE) AND MIXING HEIGHTS. MIXING HEIGHTS IN METRES ABOVE SEA LEVEL. AVERAGE WINDS IN KNOTS. SPOT INDICES ARE DETERMINED BY THE ASPECT AND ELEVATION OF THE SITES. COMPARE WINDS, TEMPERATURES AND ELEVATION WITH THE SITES HERE TO DETERMINE THE INDEX IN ANY OTHER AREA. SOUTHERN INTERIOR UPPER ***** MORNING ****** ***** AFTERNOON **** AIR VI Tmp MXG HT Wnd VI Tmp MXG HT Wnd (mASL) (kt) (mASL) (kt) FRSR CANYN KEL 19 15 500 3 80 17 1900 10 KAMLOOPS KEL 14 14 500 3 80 17 2000 10 OKANAGAN KEL 13 13 500 3 80 18 2000 10 CASTLEGAR GEG 31 13 900 6 80 16 2000 10 CRANBROOK GEG 9 12 950 17 45 17 1550 10 REVELSTOKE KEL 10 12 500 3 12 14 550 3 *SUBTRACT 20 FROM THE VENTILATION INDEX IN VALLEYS IF THE MIXING HEIGHT IS BELOW THE HEIGHT OF THE LOCAL HILLS. FORECAST UPPER WINDS FOR FRIDAY AFTERNOON (WINDS IN KM/H): 900m 1800m 2700m PENTICTON VR 5 W 15 W 24 CRANBROOK W 15 W 37 INVERSION HT BREAKTHRU TEMP KELOWNA 650 m 17 C SPOKANE 1800 m 20 C TODAY'S VENTING: THE AIRMASS HAS BECOME UNSTABLE ENOUGH AT LOW LEVELS THAT GOOD VENTING IS EXPECTED FOR A COUPLE HOURS THIS AFTERNOON. HOWEVER, VENTING WILL REMAIN POOR TO FAIR OVER EASTERN SECTIONS. VENTING FOR SATURDAY: POOR TO FAIR. VENTING OUTLOOK SUNDAY THRU TUESDAY: GENERALLY GOOD VENTING IS ANTICIPATED AS A SERIES OF FRONTAL SYSTEMS TRACKS ACROSS THE PROVINCE. CENTRAL INTERIOR/NORTHEAST UPPER ***** MORNING ****** ***** AFTERNOON **** AIR VI Tmp MXG HT Wnd VI Tmp MXG HT Wnd (mASL) (kt) (mASL) (kt) WILLIAMS L P.G. 100 10 2900 23 100 13 3950 23 PR. GEORGE P.G. 42 7 950 15 100 12 3700 21 SMITHERS ANN 42 6 850 11 100 12 3500 12 WELLS GRAY P.G. 100 7 1900 27 100 10 4000 23 FT NLSN F.N. 9 6 400 9 100 10 1550 27 FT STJOHN F.N. 100 11 2550 30 100 15 3700 30 *SUBTRACT 20 FROM THE VENTILATION INDEX IN VALLEYS IF THE MIXING HEIGHT IS BELOW THE HEIGHT OF THE LOCAL HILLS. FORECAST UPPER WINDS FOR FRIDAY AFTERNOON (WINDS IN KM/H): 900m 1800m 2700m PR. GEORGE W 17 W 28 SMITHERS S 15 SW 28 INVERSION HT BREAKTHRU TEMP PR. GEORGE 800 m 8 C FT. NELSON 600 m 7 C TODAY'S VENTING: THE AIRMASS HAS BECOME UNSTABLE AT LOW LEVELS IN THE WAKE OF A COLD FRONT THAT MOVED THROUGH YESTERDAY. GOOD VENTING IS EXPECTED THIS AFTERNOON. VENTING FOR SATURDAY: FAIR TO GOOD. VENTING OUTLOOK SUNDAY THRU TUESDAY: GENERALLY GOOD VENTING IS ANTICIPATED AS A SERIES OF FRONTAL SYSTEMS TRACKS ACROSS THE PROVINCE. COAST UPPER ***** MORNING ****** ***** AFTERNOON **** AIR VI Tmp MXG HT Wnd VI Tmp MXG HT Wnd (mASL) (kt) (mASL) (kt) VANCOUVER QUIL 84 14 850 16 94 16 1100 15 FRASER VLY QUIL 67 14 800 11 84 17 1150 11 SRN VRISL QUIL 58 14 750 9 83 16 1050 11 CNTRL VRISL QUIL 9 13 600 0 82 16 1050 11 NRN VRISL HRDY 9 10 150 0 65 13 1700 5 TERRACE ANN 64 9 900 11 100 12 2100 11 STEWART ANN 10 9 50 3 84 12 1350 9 *SUBTRACT 20 FROM THE VENTILATION INDEX IN VALLEYS IF THE MIXING HEIGHT IS BELOW THE HEIGHT OF THE LOCAL HILLS. FORECAST UPPER WINDS FOR FRIDAY AFTERNOON (WINDS IN KM/H): 900m 1800m 2700m VANCOUVER S 11 SW 15 W 24 PORT HARDY S 28 S 31 S 33 SANDSPIT SE 74 S 69 S 63 INVERSION HT BREAKTHRU TEMP QUILLAYUTE NONE m ## C PORT HARDY 200 m 11 C ANNETTE NONE m ## C TODAY'S VENTING: GOOD. VENTING FOR SATURDAY: GOOD. VENTING OUTLOOK SUNDAY THRU TUESDAY: GENERALLY GOOD VENTING IS ANTICIPATED AS A SERIES OF FRONTAL SYSTEMS TRACKS ACROSS THE PROVINCE. VENTILATION GUIDELINES: 0-33.....POOR 34-54.....FAIR 55-100.....GOOD. VENTILATION INDICES NORMALLY DROP TO POOR AFTER SUNSET. END/JDG -------------------------------------------------- Special Industry Related Information -------------------------------------------------- 1 - Smoke Forecast, Coast 2 - Smoke Forecast, Interior Q - Return to Previous menu -------------------------------------------------- l Previous usage time: 34:37:17 This session: 00:01:20 --------Total Usage time: 34:38:37 Today's usage time: 00:03:58 This month's usage time: 00:52:12 ----This account expires: 12/31/96