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If you are not a subscriber yet, enter basic when asked to login. 2 FPCN39 CWLW 261430 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 MONDAY 26 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 12 20 500 1 70 28 1450 9 KAMLOOPS KEL 18 24 700 3 42 34 1450 3 OKANAGAN KEL 12 22 600 1 40 33 1400 3 CASTLEGAR GEG 16 23 750 3 48 34 1350 5 CRANBROOK GEG 9 23 950 9 100 35 3950 11 REVELSTOKE KEL 10 20 550 1 34 30 1250 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 MONDAY AFTERNOON (WINDS IN KM/H): 900m 1800m 2700m PENTICTON VR 5 E 9 VR 5 CRANBROOK VR 5 E 9 INVERSION HT BREAKTHRU TEMP KELOWNA 1830 m 38 C SPOKANE 1010 m 33 C TODAY'S VENTING: GENERALLY ONLY FAIR UNDER STRONG INVERSION AND LIGHT WINDS. BRIEFLY GOOD IN FRASER CANYON AND EAST KOOTENAYS WHEN ELEVATED INVERSION BREAKS THIS AFTERNOON. VENTING FOR TUESDAY: FAIR VENTING OUTLOOK WEDNESDAY THRU FRIDAY: DETERIORATING TO POOR WEDNESDAY AND THURSDAY IMPROVING TO FAIR FRIDAY WITH FRESHENING WINDS. 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 19 950 10 100 28 2950 14 PR. GEORGE P.G. 16 17 800 6 59 25 1500 8 SMITHERS ANN 54 15 1300 8 100 25 3500 14 WELLS GRAY P.G. 9 19 1000 10 100 29 3000 14 FT NLSN F.N. 40 17 700 10 100 24 2550 14 FT STJOHN F.N. 68 19 1350 12 100 24 3700 16 *SUBTRACT 20 FROM THE VENTILATION INDEX IN VALLEYS IF THE MIXING HEIGHT IS BELOW THE HEIGHT OF THE LOCAL HILLS. FORECAST UPPER WINDS FOR MONDAY AFTERNOON (WINDS IN KM/H): 900m 1800m 2700m PR. GEORGE SW 17 W 33 SMITHERS SW 15 SW 33 INVERSION HT BREAKTHRU TEMP PR. GEORGE 1530 m 26 C FT. NELSON 1310 m 21 C TODAY'S VENTING: BECOMING GOOD BY AFTERNOON ONCE INVERSION BREAKS. VENTING FOR TUESDAY: FAIR VENTING OUTLOOK WEDNESDAY THRU FRIDAY: FAIR WEDNESDAY AND THURSDAY IMPROVING TO GOOD FRIDAY AS WINDS FRESHEN. COAST UPPER ***** MORNING ****** ***** AFTERNOON **** AIR VI Tmp MXG HT Wnd VI Tmp MXG HT Wnd (mASL) (kt) (mASL) (kt) VANCOUVER QUIL 19 19 350 4 24 23 450 4 FRASER VLY QUIL 20 23 450 3 36 33 900 4 SRN VRISL QUIL 19 21 350 3 30 28 700 4 CNTRL VRISL QUIL 19 22 400 3 34 31 800 4 NRN VRISL HRDY 2 11 80 2 35 15 380 10 TERRACE ANN 64 18 1300 7 100 25 3200 13 STEWART ANN 45 18 850 5 100 25 3000 12 *SUBTRACT 20 FROM THE VENTILATION INDEX IN VALLEYS IF THE MIXING HEIGHT IS BELOW THE HEIGHT OF THE LOCAL HILLS. FORECAST UPPER WINDS FOR MONDAY AFTERNOON (WINDS IN KM/H): 900m 1800m 2700m VANCOUVER VR 5 SE 9 S 19 PORT HARDY E 9 VR 5 S 19 SANDSPIT VR 5 SW 19 SW 33 INVERSION HT BREAKTHRU TEMP QUILLAYUTE 1010 m 35 C PORT HARDY 1770 m 35 C ANNETTE 1670 m 24 C TODAY'S VENTING: GOOD NORTH DIMINISHING TO POOR SOUTH UNDER DEEP INVERSIONS AND LIGHT WINDS. VENTING FOR TUESDAY: FAIR. VENTING OUTLOOK WEDNESDAY THRU FRIDAY: GOOD NORTH THROUGHOUT. FAIR SOUTH IMPROVING TO GOOD BY FRIDAY AS WINDS FRESHEN. 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: 30:56:26 This session: 00:01:19 --------Total Usage time: 30:57:45 Today's usage time: 00:05:15 This month's usage time: 02:16:58 ----This account expires: 12/31/96