FPCN39 CWLW 171330 SMOKE CONTROL FORECAST FOR BC AND YUKON ISSUED BY THE MOUNTAIN WEATHER CENTRE OF ENVIRONMENT CANADA AT 7:00 AM PDT TUESDAY 17 APRIL 2001 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. 17-April-2001 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 27/POOR 19 412 61/GOOD 18 915 84/GOOD 13 1942 KAMLOOPS 51/FAIR 16 930 99/GOOD 26 2189 99/GOOD 21 2916 OKANAGAN 64/GOOD 18 1202 99/GOOD 23 2419 99/GOOD 17 2555 CASTLEGAR 27/POOR 21 664 92/GOOD 18 1987 96/GOOD 13 2743 CRANBROOK 31/POOR 20 1152 99/GOOD 22 2805 99/GOOD 18 2662 REVELSTOKE 42/FAIR 21 773 71/GOOD 14 1598 66/GOOD 11 1734 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m PENTICTON SW 11 SW 31 SW 63 CRANBROOK S 20 SW 57 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 71/GOOD 31 1063 99/GOOD 30 3618 99/GOOD 23 2765 100 MILE 56/GOOD 20 1481 99/GOOD 36 3117 99/GOOD 20 3068 WILLIAMS LAKE 61/GOOD 24 1465 99/GOOD 32 3412 99/GOOD 20 3014 PUNTZI MTN 15/POOR 21 965 99/GOOD 32 3147 99/GOOD 19 2977 PRINCE GEORGE 79/GOOD 30 1352 99/GOOD 31 3734 99/GOOD 23 2617 BURNS LAKE 34/FAIR 17 839 99/GOOD 25 2084 99/GOOD 24 2530 SMITHERS 14/POOR 13 591 59/GOOD 21 1084 94/GOOD 17 2182 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m PR. GEORGE S 44 S 33 SMITHERS SE 26 S 30 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 18/POOR 17 481 60/GOOD 13 1308 49/FAIR 25 731 FT ST JOHN 18/POOR 20 780 72/GOOD 19 1562 99/GOOD 36 2542 WHITEHORSE 11/POOR 4 773 61/GOOD 9 2086 61/GOOD 17 1434 DAWSON 19/POOR 15 500 71/GOOD 9 2158 55/GOOD 22 847 WATSON LAKE 14/POOR 12 759 55/GOOD 19 1253 64/GOOD 15 1596 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m DEASE LAKE SE 20 SE 17 WATSON LAKE SE 24 SE 31 WHITEHORSE SE 24 S 31 MAYO SE 24 S 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 42/FAIR 30 235 73/GOOD 26 658 40/FAIR 8 813 FRASER VALLEY 50/FAIR 28 382 85/GOOD 24 1002 47/FAIR 7 1238 SRN VAN ISLD 15/POOR 28 57 74/GOOD 26 692 39/FAIR 5 619 CNTRL VAN ISLD 18/POOR 24 93 87/GOOD 26 937 36/FAIR 5 1129 NRN VAN ISLD 46/FAIR 24 353 91/GOOD 30 899 69/GOOD 10 1566 TERRACE 25/POOR 11 500 58/GOOD 11 1263 83/GOOD 12 2031 STEWART 20/POOR 12 183 69/GOOD 15 1028 34/FAIR 13 399 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m VANCOUVER S 41 SW 54 S 59 SANDSPIT S 59 S 70 S 65 PORT HARDY SW 11 S 17 SE 22 VENTILLATION GUIDLINES: POOR: 0-33 FAIR: 34-54 GOOD: 55-100 VENTILATION INDICES NORMALLY DROP TO POOR AFTER SUNSET. END/GF