FPCN39 CWLW 181330 SMOKE CONTROL FORECAST FOR BC AND YUKON ISSUED BY THE MOUNTAIN WEATHER CENTRE OF ENVIRONMENT CANADA AT 7:00 AM PDT WEDNESDAY 18 JULY 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. 18-July-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 57/GOOD 15 970 78/GOOD 15 1511 58/GOOD 9 1506 KAMLOOPS 81/GOOD 24 1200 93/GOOD 19 1797 61/GOOD 9 1718 OKANAGAN 66/GOOD 18 1247 96/GOOD 18 2086 65/GOOD 8 2183 CASTLEGAR 46/FAIR 10 1282 88/GOOD 14 2219 61/GOOD 8 2041 CRANBROOK 63/GOOD 19 1626 99/GOOD 21 2539 94/GOOD 16 2674 REVELSTOKE 50/FAIR 17 981 75/GOOD 15 1643 58/GOOD 9 1705 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m PENTICTON 0 0 W 39 SW 15 CRANBROOK W 39 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 78/GOOD 31 1167 67/GOOD 20 1275 52/FAIR 13 1298 100 MILE 88/GOOD 32 1695 52/FAIR 15 1590 52/FAIR 13 1676 WILLIAMS LAKE 84/GOOD 30 1682 43/FAIR 16 1388 52/FAIR 12 1736 PUNTZI MTN 90/GOOD 28 1815 99/GOOD 25 2421 70/GOOD 15 1971 PRINCE GEORGE 58/GOOD 33 1036 62/GOOD 28 1151 56/GOOD 14 1468 BURNS LAKE 84/GOOD 26 1396 96/GOOD 23 1824 91/GOOD 24 1630 SMITHERS 73/GOOD 22 1299 92/GOOD 22 1737 75/GOOD 16 1647 MCBRIDE 30/POOR 15 1000 38/FAIR 20 1030 44/FAIR 10 1477 CLEARWATER 27/POOR 15 629 43/FAIR 17 826 43/FAIR 10 1128 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m PR. GEORGE NW 48 NW 50 SMITHERS NW 39 N 33 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 23/POOR 27 481 28/POOR 30 502 98/GOOD 32 1332 FT ST JOHN 78/GOOD 31 1311 90/GOOD 19 2042 99/GOOD 33 1651 WHITEHORSE 30/POOR 23 886 67/GOOD 8 2507 68/GOOD 9 2380 DAWSON 21/POOR 18 501 71/GOOD 8 2413 99/GOOD 23 2849 WATSON LAKE 21/POOR 21 797 98/GOOD 17 2467 77/GOOD 10 2588 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m DEASE LAKE N 30 N 26 WATSON LAKE N 19 N 13 WHITEHORSE NW 15 N 17 MAYO W 19 NW 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 27/POOR 7 494 68/GOOD 10 1502 73/GOOD 12 1427 FRASER VALLEY 29/POOR 7 632 82/GOOD 15 1458 82/GOOD 15 1458 SRN VAN ISLD 40/FAIR 19 363 94/GOOD 20 1419 94/GOOD 20 1419 CNTRL VAN ISLD 37/FAIR 15 401 81/GOOD 20 1070 41/FAIR 5 1374 NRN VAN ISLD 31/POOR 9 503 91/GOOD 20 1322 73/GOOD 26 680 TERRACE 44/FAIR 11 905 72/GOOD 14 1390 86/GOOD 14 1865 STEWART 39/FAIR 15 429 52/FAIR 15 642 58/GOOD 15 770 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m VANCOUVER 0 0 SW 17 W 22 SANDSPIT SW 13 W 22 NW 30 PORT HARDY N 20 N 28 N 35 VENTILATION GUIDLINES: POOR: 0-33 FAIR: 34-54 GOOD: 55-100 VENTILATION INDICES NORMALLY DROP TO POOR AFTER SUNSET. END/