2 FPCN39 CWLW 261533 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 WEDNESDAY 26 FEBRUARY 1997 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 13 5 600 1 24 9 850 2 KAMLOOPS KEL 9 3 600 0 19 6 800 2 OKANAGAN KEL 9 3 600 0 20 7 850 2 CASTLEGAR SPOK 23 4 750 6 49 8 1100 8 CRANBROOK SPOK 9 1 950 11 15 3 1000 11 REVELSTOKE KEL 9 1 450 0 12 4 700 1 *SUBTRACT 20 FROM THE VENTILATION INDEX IN VALLEYS IF THE MIXING HEIGHT IS BELOW THE HEIGHT OF THE LOCAL HILLS. FORECAST UPPER WINDS FOR WEDNESDAY AFTERNOON (WINDS IN KM/H): 900m 1800m 2700m PENTICTON NW 9 NW 19 NW 33 CRANBROOK W 11 W 26 TODAY'S VENTING: POOR VENTING FOR THURSDAY: POOR 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 0 1900 20 100 4 3950 17 PR. GEORGE P.G. 61 0 1250 13 100 3 2100 15 SMITHERS P.G. 27 0 850 6 53 1 1100 10 WELLS GRAY P.G. 100 1 2400 18 100 4 4000 17 FT NLSN F.N. 9 -3 400 0 9 0 450 0 FT STJOHN F.N. 9 -5 700 20 9 -2 700 20 *SUBTRACT 20 FROM THE VENTILATION INDEX IN VALLEYS IF THE MIXING HEIGHT IS BELOW THE HEIGHT OF THE LOCAL HILLS. FORECAST UPPER WINDS FOR WEDNESDAY AFTERNOON (WINDS IN KM/H): 900m 1800m 2700m PR. GEORGE NW 22 N 19 SMITHERS N 19 N 19 TODAY'S VENTING: FAIR. VENTING FOR THURSDAY: POOR COAST UPPER ***** MORNING ****** ***** AFTERNOON **** AIR VI Tmp MXG HT Wnd VI Tmp MXG HT Wnd (mASL) (kt) (mASL) (kt) VANCOUVER QUIL 9 7 100 6 58 9 700 10 FRASER VLY QUIL 9 7 50 6 56 9 650 10 SRN VRISL QUIL 12 7 100 3 42 9 550 7 CNTRL VRISL QUIL 24 7 250 8 42 9 550 7 NRN VRISL HRDY 97 6 850 20 100 8 1500 23 TERRACE ANT 10 1 250 9 10 3 250 9 STEWART ANT 9 4 350 0 9 3 50 0 *SUBTRACT 20 FROM THE VENTILATION INDEX IN VALLEYS IF THE MIXING HEIGHT IS BELOW THE HEIGHT OF THE LOCAL HILLS. FORECAST UPPER WINDS FOR WEDNESDAY AFTERNOON (WINDS IN KM/H): 900m 1800m 2700m VANCOUVER NW 24 NW 31 NW 43 PORT HARDY NW 31 NW 44 NW 50 SANDSPIT NW 13 NW 24 NW 26 TODAY'S VENTING: POOR TO FAIR. VENTING FOR THURSDAY: POOR VENTILATION GUIDELINES: 0-33.....POOR 34-54.....FAIR 55-100.....GOOD. VENTILATION INDICES NORMALLY DROP TO POOR AFTER SUNSET. END/RAM.. -------------------------------------------------- Special Industry Related Information -------------------------------------------------- 1 - Smoke Forecast, Coast 2 - Smoke Forecast, Interior Q - Return to Previous menu -------------------------------------------------- l Previous usage time: 45:34:40 This session: 00:01:19 --------Total Usage time: 45:35:59 Today's usage time: 00:05:14 This month's usage time: 02:10:36 ----This account expires: 12/31/97