FPCN39 CWLW 311430
SMOKE CONTROL FORECAST FOR BC AND YUKON ISSUED BY THE MOUNTAIN WEATHER CENTRE OF
ENVIRONMENT CANADA AT 7:00 AM PST THURSDAY 31 JANUARY 2002 FOR TODAY.

MIXING HEIGHTS IN METRES ABOVE SEA LEVEL.  AVERAGE WINDS IN KM/H.
SUBTRACT 20 FROM THE VENTILATION INDEX IN VALLEYS IF THE MIXING
HEIGHT IS BELOW THE HEIGHT OF LOCAL MOUNTAINS OR HILLS.

31-January-2002
SOUTHERN INTERIOR                       TODAY                           TOMORROW
                7:00 AM                 4:00 PM                 4:00 PM
                VI      WND     MXG HT  VI      WND     MXG HT  VI      WND     MXG HT
                        KM/H    M               KM/H    M               KM/H    M
FRASER CANYON   34/FAIR 18      512     56/GOOD 9       1429    59/GOOD 14      1064
KAMLOOPS        13/POOR 15      397     47/FAIR 10      1180    67/GOOD 15      1316
OKANAGAN        18/POOR 15      572     50/FAIR 10      1356    56/GOOD 16      1128
CASTLEGAR       15/POOR 17      563     34/FAIR 10      995     35/FAIR 10      1020
CRANBROOK       10/POOR 5       990     35/FAIR 14      1319    51/FAIR 15      1557
REVELSTOKE      20/POOR 15      581     27/POOR 11      761     17/POOR 9       604
GOLDEN          13/POOR 12      853     33/POOR 11      1224    45/FAIR 12      1435

FORECAST UPPER WINDS FOR THIS AFTERNOON
                900m    1800m   2700m
PENTICTON       0  0    W  46   SW 50
CRANBROOK               W  33   W  43

CENTRAL INTERIOR                        TODAY                           TOMORROW
                7:00 AM                 4:00 PM                 4:00 PM
                VI      WND     MXG HT  VI      WND     MXG HT  VI      WND     MXG HT
                        KM/H    M               KM/H    M               KM/H    M
QUESNEL         11/POOR 8       596     42/FAIR 10      1245    30/POOR 14      836
100 MILE        14/POOR 13      1007    41/FAIR 11      1540    41/FAIR 14      1420
WILLIAMS LAKE   10/POOR 3       990     38/FAIR 12      1440    25/POOR 12      1202
PUNTZI MTN      11/POOR 15      937     20/POOR 13      1072    61/GOOD 18      1600
PRINCE GEORGE   14/POOR 14      760     48/FAIR 12      1391    28/POOR 14      957
BURNS LAKE      16/POOR 15      803     55/GOOD 15      1415    36/FAIR 11      1209
SMITHERS        17/POOR 15      619     60/GOOD 15      1323    25/POOR 14      747
MCBRIDE         17/POOR 10      882     43/FAIR 10      1451    54/FAIR 15      1409
CLEARWATER      14/POOR 10      496     28/POOR 6       996     45/FAIR 11      1087

FORECAST UPPER WINDS FOR THIS AFTERNOON
                900m    1800m   2700m
PR. GEORGE              W  24   SW 39
SMITHERS                SW 52   SW 56

NORTHERN BC/YUKON                       TODAY                           TOMORROW
                7:00 AM                 4:00 PM                 4:00 PM
                VI      WND     MXG HT  VI      WND     MXG HT  VI      WND     MXG HT
                        KM/H    M               KM/H    M               KM/H    M
FORT NELSON     10/POOR 11      403     11/POOR 7       429     11/POOR 4       492
FT ST JOHN      17/POOR 20      773     30/POOR 20      900     36/FAIR 20      969
WHITEHORSE      11/POOR 10      736     16/POOR 8       853     13/POOR 24      734
DAWSON          10/POOR 4       406     10/POOR 3       402     12/POOR 17      400
WATSON LAKE     10/POOR 9       709     10/POOR 5       711     12/POOR 12      732

FORECAST UPPER WINDS FOR THIS AFTERNOON
                900m    1800m   2700m
DEASE LAKE              S  43   SW 44
WATSON LAKE             SW 28   SW 39
WHITEHORSE              S  22   S  26
MAYO                    SW 26   SW 30

COAST                                   TODAY                           TOMORROW
                7:00 AM                 4:00 PM                 4:00 PM
                VI      WND     MXG HT  VI      WND     MXG HT  VI      WND     MXG HT
                        KM/H    M               KM/H    M               KM/H    M
VANCOUVER       12/POOR 17      37      32/POOR 18      252     15/POOR 14      74
FRASER VALLEY   16/POOR 20      122     18/POOR 7       307     14/POOR 10      146
SQUAMISH        20/POOR 13      204     26/POOR 11      352     30/POOR 8       582
SRN VAN ISLD    12/POOR 17      47      23/POOR 11      269     22/POOR 12      231
CNTRL VAN ISLD  15/POOR 18      80      29/POOR 16      274     40/FAIR 13      519
NRN VAN ISLD    17/POOR 19      103     34/FAIR 20      272     10/POOR 19      28
TERRACE         28/POOR 19      407     20/POOR 14      367     17/POOR 18      296
STEWART         16/POOR 18      78      14/POOR 17      58      16/POOR 19      76

FORECAST UPPER WINDS FOR THIS AFTERNOON
                900m    1800m   2700m
VANCOUVER       W  20   SW 37   SW 50
SANDSPIT        SW 41   SW 37   SW 39
PORT HARDY      SW 46   SW 41   SW 41


VENTILATION GUIDELINES:
POOR:   0-33
FAIR:   34-54
GOOD:   55-100
VENTILATION INDICES NORMALLY DROP TO POOR AFTER SUNSET.

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