2 FPCN39 CWLW 111434 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 11 AUGUST 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 9 24 600 0 85 31 1250 15 KAMLOOPS KEL 9 22 600 0 80 31 1400 15 OKANAGAN KEL 9 22 600 0 80 31 1400 15 CASTLEGAR GEG 22 24 750 5 40 33 1050 10 CRANBROOK GEG 9 22 950 8 63 31 1850 8 REVELSTOKE KEL 9 18 500 0 37 24 800 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 PENTICTON SW 15 SW 25 SW 35 CRANBROOK SW 15 SW 40 INVERSION HT BREAKTHRU TEMP KELOWNA 1230 m 32 C SPOKANE 1520 m 32 C TODAY'S VENTING: BECOMING GOOD THIS AFTERNOON AS COLD FRONT SWINGS THROUGH AND WINDS STRENGTHEN. LOCALLY FAIR DEEPER VALLEYS EASTERN INTERIOR. VENTING FOR MONDAY: GOOD VENTING OUTLOOK TUESDAY THRU THURSDAY: GOOD TUESDAY. DETERIORATING TO FAIR WEDNESDAY WITH LIGHT WINDS. GOOD THURSDAY. 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 17 950 6 63 24 1950 10 PR. GEORGE P.G. 13 15 800 3 72 22 1500 15 SMITHERS ANN 36 13 750 15 100 18 2000 18 WELLS GRAY P.G. 9 16 1000 6 63 24 2100 6 FT NLSN F.N. 9 15 400 0 100 24 3400 10 FT STJOHN F.N. 9 16 700 13 100 22 3700 11 *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 SW 25 SW 30 SMITHERS SW 25 SW 35 INVERSION HT BREAKTHRU TEMP PR. GEORGE 1500 m 32 C FT. NELSON 1470 m 32 C TODAY'S VENTING: BECOMING GOOD THIS AFTERNOON AS COLD FRONT SWINGS THROUGH AND WINDS STRENGTHEN. VENTING FOR MONDAY: GOOD VENTING OUTLOOK TUESDAY THRU THURSDAY: DETERIORATING TO FAIR TUESDAY AND WEDNESDAY AS RIDGE SETTLES IN. GOOD THURSDAY AS WINDS STRENGTHEN WITH NEXT FRONT. COAST UPPER ***** MORNING ****** ***** AFTERNOON **** AIR VI Tmp MXG HT Wnd VI Tmp MXG HT Wnd (mASL) (kt) (mASL) (kt) VANCOUVER QUIL 88 20 1050 14 93 24 1150 14 FRASER VLY QUIL 80 18 950 12 86 23 1100 12 SRN VRISL QUIL 81 18 950 12 86 22 1050 12 CNTRL VRISL QUIL 80 17 950 12 85 21 1050 12 NRN VRISL HRDY 38 15 350 10 53 18 550 10 TERRACE ANN 89 17 900 20 100 21 2000 20 STEWART ANN 25 15 200 10 100 21 1400 15 *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 SW 20 SW 25 SW 35 PORT HARDY SW 15 SW 20 SW 25 SANDSPIT SW 30 SW 35 SW 40 INVERSION HT BREAKTHRU TEMP QUILLAYUTE 1490 m 33 C PORT HARDY 1470 m 33 C ANNETTE 1520 m 33 C TODAY'S VENTING: GOOD LOCALLY FAIR UNDER MARINE INVERSION OUTER COASTS. VENTING FOR MONDAY: GOOD VENTING OUTLOOK TUESDAY THRU THURSDAY: GOOD TUESDAY DETERIORATING TO FAIR WEDNESDAY IMPROVING TO GOOD THURSDAY. 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: 29:40:04 This session: 00:01:18 --------Total Usage time: 29:41:22 Today's usage time: 00:05:17 This month's usage time: 01:00:35 ----This account expires: 12/31/96