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If you are not a subscriber yet, enter basic when asked to login. 2 FPCN39 CWLW 151446 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 SUNDAY 15 SEPTEMBER 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 24 14 500 5 56 17 1050 7 KAMLOOPS KEL 37 14 800 7 70 17 1300 9 OKANAGAN KEL 37 14 800 7 70 17 1300 9 CASTLEGAR GEG 23 14 800 5 35 16 1050 5 CRANBROOK GEG 10 10 950 10 100 16 2350 28 REVELSTOKE KEL 23 12 650 7 45 14 1050 7 *SUBTRACT 20 FROM THE VENTILATION INDEX IN VALLEYS IF THE MIXING HEIGHT IS BELOW THE HEIGHT OF THE LOCAL HILLS. FORECAST UPPER WINDS FOR SUNDAY AFTERNOON (WINDS IN KM/H): 900m 1800m 2700m PENTICTON SW 9 W 15 W 24 CRANBROOK SW 15 SW 35 INVERSION HT BREAKTHRU TEMP KELOWNA 1420 m 18 C SPOKANE 1390 m 16 C TODAY'S VENTING: BECOMING GENERALLY GOOD BY AFTERNOON DUE INSTABILITY BUT REMAINING ONLY FAIR ARROW LAKES AREA DUE LIGHTER WINDS. VENTING FOR MONDAY: GOOD VENTING OUTLOOK TUESDAY THRU THURSDAY: DETERIORATING TO FAIR TUESDAY AND TO POOR WEDNESDAY AND THURSDAY UNDER BUILDING RIDGE. 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. 9 11 940 3 100 16 2350 14 PR. GEORGE P.G. 36 11 950 11 100 16 2650 14 SMITHERS ANN 30 8 750 10 100 16 2500 29 WELLS GRAY P.G. 9 11 1000 2 100 13 2100 14 FT NLSN F.N. 38 12 750 9 52 14 1000 9 FT STJOHN F.N. 9 10 700 8 78 17 2550 6 *SUBTRACT 20 FROM THE VENTILATION INDEX IN VALLEYS IF THE MIXING HEIGHT IS BELOW THE HEIGHT OF THE LOCAL HILLS. FORECAST UPPER WINDS FOR SUNDAY AFTERNOON (WINDS IN KM/H): 900m 1800m 2700m PR. GEORGE W 9 VR 5 SMITHERS S 9 S 5 INVERSION HT BREAKTHRU TEMP PR. GEORGE 1000 m 12 C FT. NELSON 1210 m 15 C TODAY'S VENTING: BECOMING GOOD BY MIDDAY AS STRONG WINDS MIX DOWN TO SURFACE. LOCALLY FAIR UNDER ELEVATED INVERSION NORTHEAST BC. VENTING FOR MONDAY: FAIR TO GOOD VENTING OUTLOOK TUESDAY THRU THURSDAY: DETERIORATING TO POOR TUESDAY UNDER RIDGE OF HIGH PRESSURE. IMPROVING TO GOOD WEDNESDAY. BACK TO FAIR THURSDAY AS RIDGE REBUILDS. COAST UPPER ***** MORNING ****** ***** AFTERNOON **** AIR VI Tmp MXG HT Wnd VI Tmp MXG HT Wnd (mASL) (kt) (mASL) (kt) VANCOUVER QUIL 87 14 950 15 100 17 1750 16 FRASER VLY QUIL 77 14 900 12 100 17 1650 15 SRN VRISL QUIL 74 14 800 12 100 17 1500 15 CNTRL VRISL QUIL 50 13 550 10 99 16 1250 14 NRN VRISL HRDY 28 10 200 10 55 15 1200 6 TERRACE ANN 10 8 200 23 100 14 1800 28 STEWART ANN 9 10 0 13 100 14 1200 24 *SUBTRACT 20 FROM THE VENTILATION INDEX IN VALLEYS IF THE MIXING HEIGHT IS BELOW THE HEIGHT OF THE LOCAL HILLS. FORECAST UPPER WINDS FOR SUNDAY AFTERNOON (WINDS IN KM/H): 900m 1800m 2700m VANCOUVER S 22 S 26 SW 26 PORT HARDY SW 20 SW 20 SW 22 SANDSPIT VR 5 VR 5 SW 9 INVERSION HT BREAKTHRU TEMP QUILLAYUTE 60 m 12 C PORT HARDY 670 m 14 C ANNETTE 80 m 13 C TODAY'S VENTING: GOOD OVERALL. LOCALLY FAIR NORTHERN VANCOUVER ISLAND AND CENTRAL COAST DUE ELEVATED INVERSION AND LIGHTER WINDS. VENTING FOR MONDAY: GOOD VENTING OUTLOOK TUESDAY THRU THURSDAY: GOOD NORTH. DETERIORATING TO FAIR WEDNESDAY AND THURSDAY UNDER BUILDING RIDGE. VENTILATION GUIDELINES: 0-33.....POOR 34-54.....FAIR 55-100.....GOOD. VENTILATION INDICES NORMALLY DROP TO POOR AFTER SUNSET. END/KAL -------------------------------------------------- Special Industry Related Information -------------------------------------------------- 1 - Smoke Forecast, Coast 2 - Smoke Forecast, Interior Q - Return to Previous menu -------------------------------------------------- l Previous usage time: 32:32:42 This session: 00:01:18 --------Total Usage time: 32:34:00 Today's usage time: 00:03:57 This month's usage time: 01:09:59 ----This account expires: 12/31/96