FPCN39 CWLW 181330 SMOKE CONTROL FORECAST FOR BC AND YUKON ISSUED BY THE MOUNTAIN WEATHER CENTRE OF ENVIRONMENT CANADA AT 7:00 AM PDT FRIDAY 18 MAY 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-May-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 71/GOOD 16 1233 84/GOOD 19 1396 99/GOOD 15 2313 KAMLOOPS 89/GOOD 25 1355 99/GOOD 27 2087 99/GOOD 21 2609 OKANAGAN 72/GOOD 16 1502 99/GOOD 23 2035 79/GOOD 16 1680 CASTLEGAR 57/GOOD 13 1344 93/GOOD 17 2102 94/GOOD 20 1903 CRANBROOK 63/GOOD 16 1766 99/GOOD 25 2582 99/GOOD 23 2296 REVELSTOKE 60/GOOD 14 1303 50/FAIR 14 1101 91/GOOD 17 1995 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m PENTICTON 0 0 W 28 W 50 CRANBROOK W 26 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 85/GOOD 18 1806 97/GOOD 15 2538 99/GOOD 26 3267 100 MILE 71/GOOD 14 2097 58/GOOD 10 2088 99/GOOD 27 2896 WILLIAMS LAKE 73/GOOD 16 2009 59/GOOD 9 2247 99/GOOD 24 3300 PUNTZI MTN 77/GOOD 16 2084 77/GOOD 17 2003 99/GOOD 30 3124 PRINCE GEORGE 98/GOOD 25 1912 99/GOOD 23 3014 99/GOOD 32 3039 BURNS LAKE 89/GOOD 23 1621 99/GOOD 16 2534 99/GOOD 30 3047 SMITHERS 74/GOOD 18 1502 71/GOOD 8 2568 99/GOOD 25 2201 MCBRIDE 92/GOOD 17 2310 99/GOOD 17 2685 85/GOOD 17 2077 CLEARWATER 62/GOOD 16 1186 37/FAIR 7 1221 99/GOOD 20 2456 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m PR. GEORGE W 44 W 48 SMITHERS SW 43 W 28 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 53/FAIR 18 942 99/GOOD 17 2472 99/GOOD 20 2074 FT ST JOHN 99/GOOD 37 2144 99/GOOD 32 3751 99/GOOD 26 3564 WHITEHORSE 56/GOOD 17 1349 99/GOOD 16 2872 99/GOOD 22 2136 DAWSON 50/FAIR 17 912 93/GOOD 9 3388 99/GOOD 13 3142 WATSON LAKE 79/GOOD 25 1473 99/GOOD 22 2456 99/GOOD 25 2924 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m DEASE LAKE W 41 W 28 WATSON LAKE NW 33 NW 20 WHITEHORSE W 30 0 0 MAYO SE 15 SE 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 75/GOOD 21 846 62/GOOD 20 638 97/GOOD 35 858 FRASER VALLEY 64/GOOD 15 960 81/GOOD 18 1220 99/GOOD 25 1603 SRN VAN ISLD 65/GOOD 21 684 47/FAIR 20 437 90/GOOD 20 1284 CNTRL VAN ISLD 65/GOOD 19 755 74/GOOD 16 1102 90/GOOD 20 1294 NRN VAN ISLD 49/FAIR 12 748 52/FAIR 31 332 99/GOOD 34 1292 TERRACE 60/GOOD 14 1078 58/GOOD 9 1511 86/GOOD 14 1898 STEWART 38/FAIR 10 594 20/POOR 4 538 55/GOOD 14 762 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m VANCOUVER W 20 W 28 W 54 SANDSPIT SW 33 SW 41 W 65 PORT HARDY SW 28 SW 30 W 37 VENTILLATION GUIDLINES: POOR: 0-33 FAIR: 34-54 GOOD: 55-100 VENTILATION INDICES NORMALLY DROP TO POOR AFTER SUNSET. END/