FPCN39 CWLW 051330 SMOKE CONTROL FORECAST FOR BC AND YUKON ISSUED BY THE MOUNTAIN WEATHER CENTRE OF ENVIRONMENT CANADA AT 7:00 AM PDT THURSDAY 5 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. 05-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 50/FAIR 18 735 60/GOOD 20 841 56/GOOD 9 1422 KAMLOOPS 61/GOOD 20 973 69/GOOD 17 1247 58/GOOD 8 1771 OKANAGAN 58/GOOD 18 1089 64/GOOD 20 1129 62/GOOD 9 1876 CASTLEGAR 29/POOR 12 815 64/GOOD 13 1533 59/GOOD 9 1792 CRANBROOK 41/FAIR 20 1278 69/GOOD 17 1850 57/GOOD 9 2197 REVELSTOKE 35/FAIR 15 794 36/FAIR 10 995 38/FAIR 5 1291 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m PENTICTON 0 0 W 22 W 41 CRANBROOK W 13 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 43/FAIR 20 901 69/GOOD 16 1499 59/GOOD 15 1325 100 MILE 34/FAIR 13 1327 68/GOOD 17 1824 61/GOOD 9 2326 WILLIAMS LAKE 29/POOR 14 1225 56/GOOD 15 1661 63/GOOD 10 2267 PUNTZI MTN 25/POOR 19 1076 55/GOOD 12 1794 57/GOOD 12 1831 PRINCE GEORGE 49/FAIR 22 1094 65/GOOD 10 2082 73/GOOD 16 1740 BURNS LAKE 60/GOOD 12 1554 71/GOOD 10 2160 70/GOOD 24 1207 SMITHERS 59/GOOD 13 1423 68/GOOD 10 2035 61/GOOD 20 1145 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m PR. GEORGE SW 43 W 43 SMITHERS W 31 SW 50 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 34/FAIR 31 547 79/GOOD 11 2165 76/GOOD 16 1517 FT ST JOHN 34/FAIR 34 844 75/GOOD 13 2073 90/GOOD 28 1605 WHITEHORSE 48/FAIR 22 1089 61/GOOD 10 1948 70/GOOD 13 1909 DAWSON 10/POOR 4 903 60/GOOD 10 1820 69/GOOD 17 742 WATSON LAKE 57/GOOD 21 1219 62/GOOD 9 2129 74/GOOD 13 2026 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m DEASE LAKE W 19 W 28 WATSON LAKE W 30 W 15 WHITEHORSE SW 26 SW 31 MAYO SW 9 SW 13 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 18/POOR 5 326 66/GOOD 26 550 62/GOOD 14 929 FRASER VALLEY 13/POOR 18 102 56/GOOD 18 661 58/GOOD 9 1333 SRN VAN ISLD 37/FAIR 12 497 56/GOOD 20 561 60/GOOD 13 944 CNTRL VAN ISLD 31/POOR 11 416 58/GOOD 20 591 63/GOOD 12 1122 NRN VAN ISLD 50/FAIR 21 458 87/GOOD 25 970 99/GOOD 25 1295 TERRACE 47/FAIR 8 1261 70/GOOD 12 1527 61/GOOD 14 1097 STEWART 39/FAIR 8 793 58/GOOD 13 882 66/GOOD 17 847 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m VANCOUVER SW 20 SW 43 SW 59 SANDSPIT SW 33 SW 39 W 41 PORT HARDY W 37 W 39 W 41 VENTILLATION GUIDLINES: POOR: 0-33 FAIR: 34-54 GOOD: 55-100 VENTILATION INDICES NORMALLY DROP TO POOR AFTER SUNSET. END/GF