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FPCN39 CWLW 111534
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 PST MONDAY 11 NOVEMBER 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 10 550 0 37 12 850 3
KAMLOOPS KEL 9 6 350 0 19 7 500 0
OKANAGAN KEL 9 7 500 0 27 9 650 3
CASTLEGAR GEG 19 6 850 3 30 7 850 3
CRANBROOK GEG 9 2 950 5 19 4 950 5
REVELSTOKE KEL 9 4 450 0 19 5 450 0
*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 SW 17 W 41
CRANBROOK VR 5 W 37
TODAY'S VENTING: POOR TO FAIR
VENTING FOR TUESDAY: POOR
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. 34 -2 1200 11 39 0 1250 11
PR. GEORGE P.G. 44 -4 1050 11 47 -2 1100 11
SMITHERS ANN 9 -1 500 22 19 0 500 22
WELLS GRAY P.G. 25 -4 1150 11 33 -1 1250 11
FT NLSN F.N. 13 -18 500 3 24 -15 600 7
FT STJOHN F.N. 9 -12 700 13 19 -11 700 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 MONDAY AFTERNOON (WINDS IN KM/H):
900m 1800m 2700m
PR. GEORGE S 24 S 24
SMITHERS SE 35 S 24
TODAY'S VENTING: POOR TO FAIR
VENTING FOR TUESDAY: POOR
COAST
UPPER ***** MORNING ****** ***** AFTERNOON ****
AIR VI Tmp MXG HT Wnd VI Tmp MXG HT Wnd
(mASL) (kt) (mASL) (kt)
VANCOUVER QUIL 9 10 100 8 11 12 100 8
FRASER VLY QUIL 13 13 100 7 14 14 150 7
SRN VRISL QUIL 12 11 50 6 16 13 100 7
CNTRL VRISL QUIL 9 8 50 6 19 10 50 6
NRN VRISL HRDY 24 12 100 15 41 13 250 15
TERRACE ANN 9 2 200 18 50 3 1500 18
STEWART ANN 9 2 0 12 45 3 1400 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 S 30 S 41 SW 52
PORT HARDY S 54 S 67 S 70
SANDSPIT S 63 S 57 S 59
TODAY'S VENTING: POOR TO FAIR
VENTING FOR TUESDAY: POOR
VENTILATION GUIDELINES:
0-33.....POOR
34-54.....FAIR
55-100.....GOOD.
VENTILATION INDICES NORMALLY DROP TO POOR AFTER SUNSET.
END/..
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