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If you are not a subscriber yet, enter basic when asked to login. 2 FPCN39 CWLW 271430 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 TUESDAY 27 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 23 550 0 60 30 1220 10 KAMLOOPS KEL 9 23 550 0 53 31 1300 6 OKANAGAN KEL 9 22 550 0 54 32 1400 6 CASTLEGAR GEG 17 23 750 3 69 34 1600 8 CRANBROOK GEG 10 24 940 0 35 32 1300 8 REVELSTOKE KEL 9 21 550 0 54 31 1400 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 TUESDAY AFTERNOON (WINDS IN KM/H): 900m 1800m 2700m PENTICTON VR 5 E 11 SE 19 CRANBROOK E 9 SE 26 INVERSION HT BREAKTHRU TEMP KELOWNA 1620 m 36 C SPOKANE 1460 m 31 C TODAY'S VENTING: BECOMING FAIR BY AFTERNOON AS WINDS FRESHEN BUT REMAINING POOR EASTERN VALLEYS. VENTING FOR WEDNESDAY: FAIR TO GOOD VENTING OUTLOOK THURSDAY THRU SATURDAY: DETERIORATING TO POOR THURSDAY AND FRIDAY IMPROVING TO GOOD SATURDAY. 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 20 940 2 20 28 1100 8 PR. GEORGE P.G. 10 18 980 2 20 26 1300 5 SMITHERS ANN 9 14 500 7 95 24 2050 10 WELLS GRAY P.G. 9 17 1000 2 28 25 1400 5 FT NLSN F.N. 26 16 950 3 40 23 1550 3 FT STJOHN F.N. 26 17 1300 3 100 25 3700 13 *SUBTRACT 20 FROM THE VENTILATION INDEX IN VALLEYS IF THE MIXING HEIGHT IS BELOW THE HEIGHT OF THE LOCAL HILLS. FORECAST UPPER WINDS FOR TUESDAY AFTERNOON (WINDS IN KM/H): 900m 1800m 2700m PR. GEORGE S 30 SW 37 SMITHERS S 30 S 37 INVERSION HT BREAKTHRU TEMP PR. GEORGE 1950 m 30 C FT. NELSON 1650 m 24 C TODAY'S VENTING: OVERALL POOR WITH POCKETS OF GOOD VENTING LEE OF COAST MOUNTAINS AND ROCKIES WHERE DOWNSLOPE WINDS WILL GENERATE SOME MIXING. VENTING FOR WEDNESDAY: FAIR TO POOR. VENTING OUTLOOK THURSDAY THRU SATURDAY: FAIR IMPROVING TO GOOD FRIDAY AND SATURDAY AS WINDS FRESHEN COAST UPPER ***** MORNING ****** ***** AFTERNOON **** AIR VI Tmp MXG HT Wnd VI Tmp MXG HT Wnd (mASL) (kt) (mASL) (kt) VANCOUVER QUIL 70 19 850 12 76 23 950 11 FRASER VLY QUIL 66 20 850 10 76 26 1080 10 SRN VRISL QUIL 41 17 550 7 72 23 950 10 CNTRL VRISL QUIL 67 20 850 10 73 24 1000 10 NRN VRISL HRDY 17 14 200 5 34 17 350 8 TERRACE ANN 22 17 400 7 79 24 1500 8 STEWART ANN 15 16 200 3 59 24 1150 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 TUESDAY AFTERNOON (WINDS IN KM/H): 900m 1800m 2700m VANCOUVER SW 13 VR 5 S 19 PORT HARDY S 26 S 43 S 48 SANDSPIT S 35 S 44 S 57 INVERSION HT BREAKTHRU TEMP QUILLAYUTE 1400 m 34 C PORT HARDY 1920 m 37 C ANNETTE 2130 m 30 C TODAY'S VENTING: FAIR CENTRAL COAST AND NORTHERN VANCOUVER ISLAND UNDER STRONG INVERSION OTHERWISE BECOMING GOOD AS WINDS FRESHEN. VENTING FOR WEDNESDAY: FAIR TO GOOD. VENTING OUTLOOK THURSDAY THRU SATURDAY: DETERIORATING TO FAIR THURSDAY IMPROVING TO GOOD FRIDAY AND SATURDAY. 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: 31:01:41 This session: 00:01:18 --------Total Usage time: 31:02:59 Today's usage time: 00:05:14 This month's usage time: 02:22:12 ----This account expires: 12/31/96