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If you are not a subscriber yet, enter basic when asked to login. 2 FPCN39 CWLW 261437 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 FRIDAY 26 JULY 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 29 26 900 3 94 36 3200 5 KAMLOOPS KEL 24 24 850 3 94 33 3350 5 OKANAGAN KEL 15 22 650 2 94 32 3350 5 CASTLEGAR GEG 20 23 800 4 62 32 2250 4 CRANBROOK GEG 9 20 950 7 89 30 3950 5 REVELSTOKE KEL 13 21 650 2 94 31 3450 5 *SUBTRACT 20 FROM THE VENTILATION INDEX IN VALLEYS IF THE MIXING HEIGHT IS BELOW THE HEIGHT OF THE LOCAL HILLS. FORECAST UPPER WINDS FOR FRIDAY AFTERNOON (WINDS IN KM/H): 900m 1800m 2700m PENTICTON L/V L/V SW 15 CRANBROOK L/V W 15 INVERSION HT BREAKTHRU TEMP KELOWNA 1350 m 31 C SPOKANE 1140 m 29 C TODAY'S VENTING: POOR UNTIL MID AFTERNOON THEN GOOD AS INVERSION BREAKS. VENTING FOR SATURDAY: FAIR. VENTING OUTLOOK SUNDAY THRU TUESDAY: FAIR TO POOR SUNDAY UNDER RIDGE IMPROVING TO GOOD BY TUESDAY AS FRONT MOVES INLAND AND WINDS STRENGTHEN. 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 18 950 8 100 28 3950 9 PR. GEORGE P.G. 34 18 950 10 100 28 3700 9 SMITHERS P.G. 47 20 1070 5 100 29 2910 10 WELLS GRAY P.G. 35 18 1350 8 100 29 4000 9 FT NLSN F.N. 41 20 770 10 100 26 2230 10 FT STJOHN F.N. 16 18 700 10 68 22 2100 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 FRIDAY AFTERNOON (WINDS IN KM/H): 900m 1800m 2700m PR. GEORGE L/V NW 11 SMITHERS L/V SW 15 INVERSION HT BREAKTHRU TEMP PR. GEORGE 1100 m 22 C FT. NELSON 770 m 22 C TODAY'S VENTING: FAIR IMPROVING TO GOOD BY AFTERNOON. VENTING FOR SATURDAY: FAIR TO GOOD. VENTING OUTLOOK SUNDAY THRU TUESDAY: FAIR TO POOR SUNDAY AND MONDAY UNDER RIDGE THEN IMPROVING TO GOOD TUESDAY AS FRONT MOVES INLAND AND WINDS STRENGTHEN. COAST UPPER ***** MORNING ****** ***** AFTERNOON **** AIR VI Tmp MXG HT Wnd VI Tmp MXG HT Wnd (mASL) (kt) (mASL) (kt) VANCOUVER QUIL 47 24 650 8 49 25 660 8 FRASER VLY QUIL 14 23 500 1 45 32 1450 3 SRN VRISL QUIL 13 21 400 1 43 28 800 5 CNTRL VRISL HRDY 35 23 610 5 63 32 1470 5 NRN VRISL HRDY 47 14 350 13 60 17 500 13 TERRACE P.G. 64 22 950 10 67 27 1020 10 STEWART P.G. 40 18 700 5 74 25 960 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 FRIDAY AFTERNOON (WINDS IN KM/H): 900m 1800m 2700m VANCOUVER L/V L/V SW 11 PORT HARDY NW 24 NW 13 L/V SANDSPIT NW 19 NW 13 SW 19 INVERSION HT BREAKTHRU TEMP QUILLAYUTE 770 m 29 C PORT HARDY 1690 m 32 C ANNETTE MISG m NA C TODAY'S VENTING: FAIR LOCALLY POOR INNER SOUTH COAST DUE STAGNATION UNDER RIDGE OTHERWISE FAIR IMPROVING TO GOOD IN THE AFTERNOON AS WINDS FRESHEN. VENTING FOR SATURDAY: FAIR VENTING OUTLOOK SUNDAY THRU TUESDAY: FAIR SUNDAY UNDER MARINE INVERSION THEN IMPROVING TO GOOD MONDAY AND TUESDAY AS FRONT PUSHES INLAND AND AIRMASS DESTABILIZES. 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: 28:13:04 This session: 00:01:21 --------Total Usage time: 28:14:25 Today's usage time: 00:05:20 This month's usage time: 02:07:10 ----This account expires: 12/31/96