FPCN39 CWLW 041330 SMOKE CONTROL FORECAST FOR BC AND YUKON ISSUED BY THE MOUNTAIN WEATHER CENTRE OF ENVIRONMENT CANADA AT 7:00 AM PDT SATURDAY 4 AUGUST 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. 04-August-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 60/GOOD 15 1041 99/GOOD 30 1545 54/FAIR 15 904 KAMLOOPS 31/POOR 12 702 99/GOOD 22 2090 47/FAIR 10 1161 OKANAGAN 51/FAIR 14 1128 97/GOOD 16 2330 86/GOOD 13 2241 CASTLEGAR 46/FAIR 12 1164 91/GOOD 12 2695 99/GOOD 16 2552 CRANBROOK 12/POOR 9 1002 99/GOOD 25 2289 99/GOOD 20 2662 REVELSTOKE 18/POOR 9 619 75/GOOD 10 2243 31/POOR 5 1320 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m PENTICTON 0 0 SW 22 S 37 CRANBROOK SW 26 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 33/POOR 10 1023 99/GOOD 19 2477 99/GOOD 23 2297 100 MILE 46/FAIR 25 1257 99/GOOD 22 2864 75/GOOD 22 1747 WILLIAMS LAKE 33/POOR 17 1219 99/GOOD 18 3190 99/GOOD 25 2447 PUNTZI MTN 18/POOR 19 997 99/GOOD 22 2639 90/GOOD 18 2340 PRINCE GEORGE 49/FAIR 25 1043 89/GOOD 13 2630 90/GOOD 17 2200 BURNS LAKE 47/FAIR 15 1098 65/GOOD 10 1945 74/GOOD 13 1882 SMITHERS 61/GOOD 19 1181 60/GOOD 11 1623 65/GOOD 11 1792 MCBRIDE 29/POOR 16 974 72/GOOD 13 2009 78/GOOD 15 1999 CLEARWATER 31/POOR 16 668 85/GOOD 15 1929 64/GOOD 14 1359 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m PR. GEORGE SW 52 S 50 SMITHERS SW 37 SW 17 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 12/POOR 9 436 38/FAIR 5 1557 57/GOOD 11 1409 FT ST JOHN 35/FAIR 12 1137 99/GOOD 23 2206 99/GOOD 41 2379 WHITEHORSE 40/FAIR 16 1111 60/GOOD 10 1933 67/GOOD 14 1743 DAWSON 22/POOR 12 573 99/GOOD 14 2780 99/GOOD 21 2602 WATSON LAKE 22/POOR 6 1108 65/GOOD 10 2090 36/FAIR 5 1771 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m DEASE LAKE 0 0 0 0 WATSON LAKE 0 0 SE 13 WHITEHORSE NE 19 NE 17 MAYO 0 0 0 0 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 28/POOR 7 540 69/GOOD 16 952 45/FAIR 18 436 FRASER VALLEY 29/POOR 5 824 74/GOOD 14 1306 59/GOOD 13 971 SRN VAN ISLD 18/POOR 7 253 66/GOOD 12 1219 19/POOR 12 173 CNTRL VAN ISLD 43/FAIR 16 472 78/GOOD 16 1224 46/FAIR 18 471 NRN VAN ISLD 25/POOR 26 142 83/GOOD 24 922 21/POOR 37 81 TERRACE 45/FAIR 11 909 57/GOOD 10 1337 41/FAIR 13 742 STEWART 27/POOR 7 495 63/GOOD 12 1107 36/FAIR 8 687 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m VANCOUVER S 35 SW 41 SW 37 SANDSPIT S 31 S 39 S 33 PORT HARDY S 20 S 17 SE 9 VENTILATION GUIDELINES: POOR: 0-33 FAIR: 34-54 GOOD: 55-100 VENTILATION INDICES NORMALLY DROP TO POOR AFTER SUNSET. END/