2 FPCN39 CWLW 011533 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 PST SUNDAY 1 DECEMBER 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 55 2 650 15 100 0 2000 15 KAMLOOPS KEL 30 2 650 12 100 0 2000 15 OKANAGAN KEL 19 0 650 8 95 0 2000 10 CASTLEGAR SPOK 9 0 750 5 95 0 2000 10 CRANBROOK SPOK 9 -2 750 0 80 0 2000 10 REVELSTOKE KEL 12 0 650 4 92 0 2000 8 *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 W 13 W 26 NW 54 CRANBROOK W 22 W 59 TODAY'S VENTING: GOOD. VENTING FOR MONDAY: POOR TO FAIR. 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. 10 0 950 5 100 0 1600 12 PR. GEORGE P.G. 10 -1 700 5 85 0 1600 10 SMITHERS P.G. 9 -2 700 2 72 0 1600 8 WELLS GRAY P.G. 10 1 1000 7 100 0 1600 15 FT NLSN F.N. 18 -7 600 2 45 0 1100 5 FT STJOHN F.N. 48 -6 600 10 72 0 1100 10 *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 43 NW 41 SMITHERS W 31 W 41 TODAY'S VENTING: FAIR TO GOOD. VENTING FOR MONDAY: POOR TO FAIR. COAST UPPER ***** MORNING ****** ***** AFTERNOON **** AIR VI Tmp MXG HT Wnd VI Tmp MXG HT Wnd (mASL) (kt) (mASL) (kt) VANCOUVER QUIL 80 7 950 15 100 8 950 20 FRASER VLY QUIL 80 7 950 15 100 8 950 20 SRN VRISL QUIL 80 7 900 15 100 8 950 20 CNTRL VRISL QUIL 80 6 950 15 100 8 950 20 NRN VRISL HRDY 72 5 950 13 100 7 950 20 TERRACE ANT 10 0 250 5 30 1 250 10 STEWART ANT 9 2 150 5 22 1 150 10 *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 W 46 NW 63 NW 69 PORT HARDY W 28 W 43 W 54 SANDSPIT S 56 S 63 S 70 TODAY'S VENTING: GOOD EXCEPT POOR IN THE NORTH. VENTING FOR MONDAY: FAIR TO GOOD. VENTILATION GUIDELINES: 0-33.....POOR 34-54.....FAIR 55-100.....GOOD. VENTILATION INDICES NORMALLY DROP TO POOR AFTER SUNSET. END/mwso/tal -------------------------------------------------- Special Industry Related Information -------------------------------------------------- 1 - Smoke Forecast, Coast 2 - Smoke Forecast, Interior Q - Return to Previous menu -------------------------------------------------- l Previous usage time: 38:39:58 This session: 00:01:23 --------Total Usage time: 38:41:21 Today's usage time: 00:04:03 This month's usage time: 00:04:03 ----This account expires: 12/31/96