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If you are not a subscriber yet, enter basic when asked to login. 2 FPCN39 CWLW 031430 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 SATURDAY 3 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 17 200 6 92 21 2100 8 KAMLOOPS KEL 78 18 1800 7 100 22 3350 10 OKANAGAN KEL 29 17 650 7 100 21 2450 9 CASTLEGAR GEG 55 16 1100 10 100 20 2550 10 CRANBROOK GEG 80 15 2200 9 100 19 3950 10 REVELSTOKE KEL 12 15 500 6 84 18 2000 8 *SUBTRACT 20 FROM THE VENTILATION INDEX IN VALLEYS IF THE MIXING HEIGHT IS BELOW THE HEIGHT OF THE LOCAL HILLS. FORECAST UPPER WINDS FOR SATURDAY AFTERNOON (WINDS IN KM/H): 900m 1800m 2700m PENTICTON NW 15 NW 24 NW 35 CRANBROOK NW 20 NW 57 INVERSION HT BREAKTHRU TEMP KELOWNA 650 m 16 C SPOKANE 1190 m 18 C TODAY'S VENTING: BECOMING GOOD BY AFTERNOON DUE CONVECTIVE INSTABILITY. VENTING FOR SUNDAY: FAIR TO GOOD VENTING OUTLOOK MONDAY THRU WEDNESDAY: GOOD MONDAY AND TUESDAY DETERIORATING TO FAIR WEDNESDAY DUE LIGHT WINDS AND STRONGER MORNING INVERSIONS. 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. 79 13 1450 22 100 16 2200 15 PR. GEORGE P.G. 32 13 1000 9 86 16 1500 15 SMITHERS ANN 82 15 1550 11 89 17 1750 11 WELLS GRAY P.G. 82 13 1550 22 100 17 4000 15 FT NLSN F.N. 9 17 400 4 89 22 1700 10 FT STJOHN F.N. 9 15 700 14 75 19 1750 9 *SUBTRACT 20 FROM THE VENTILATION INDEX IN VALLEYS IF THE MIXING HEIGHT IS BELOW THE HEIGHT OF THE LOCAL HILLS. FORECAST UPPER WINDS FOR SATURDAY AFTERNOON (WINDS IN KM/H): 900m 1800m 2700m PR. GEORGE W 32 NW 39 SMITHERS W 37 W 54 INVERSION HT BREAKTHRU TEMP PR. GEORGE 680 m 14 C FT. NELSON 690 m 20 C TODAY'S VENTING: POOR NORTHEAST BC THIS MORNING UNTIL INVERSION BREAKS OTHERWISE GOOD ALL DISTRICTS. VENTING FOR SUNDAY: GOOD. VENTING OUTLOOK MONDAY THRU WEDNESDAY: GOOD MONDAY AND TUESDAY. DETERIORATING TO FAIR NORTHEAST BC WEDNESDAY UNDER STRONGER INVERSION AND LIGHTER SURFACE WINDS. COAST UPPER ***** MORNING ****** ***** AFTERNOON **** AIR VI Tmp MXG HT Wnd VI Tmp MXG HT Wnd (mASL) (kt) (mASL) (kt) VANCOUVER QUIL 72 17 1300 7 96 21 1950 9 FRASER VLY QUIL 51 16 900 6 90 20 1850 8 SRN VRISL QUIL 62 17 1100 6 86 20 1800 7 CNTRL VRISL QUIL 63 17 1150 6 92 21 1900 8 NRN VRISL HRDY 19 14 400 3 50 17 1150 8 TERRACE ANN 82 17 1450 10 96 21 1800 10 STEWART ANN 65 17 1050 7 91 21 1700 9 *SUBTRACT 20 FROM THE VENTILATION INDEX IN VALLEYS IF THE MIXING HEIGHT IS BELOW THE HEIGHT OF THE LOCAL HILLS. FORECAST UPPER WINDS FOR SATURDAY AFTERNOON (WINDS IN KM/H): 900m 1800m 2700m VANCOUVER SW 26 W 28 NW 37 PORT HARDY SW 15 NW 26 NW 41 SANDSPIT NW 26 NW 37 NW 54 INVERSION HT BREAKTHRU TEMP QUILLAYUTE 70 m 13 C PORT HARDY 110 m 13 C ANNETTE 70 m 13 C TODAY'S VENTING: GOOD EXCEPT LOCALLY FAIR UNDER MARINE INVERSION OUTER COAST. VENTING FOR SUNDAY: GOOD VENTING OUTLOOK MONDAY THRU WEDNESDAY: GOOD MONDAY AND TUESDAY DETERIORATING TO FAIR WEDNESDAY UNDER SHARPER SURFACE INVERSION. 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: 28:57:57 This session: 00:01:19 --------Total Usage time: 28:59:16 Today's usage time: 00:05:17 This month's usage time: 00:18:29 ----This account expires: 12/31/96