FPCN39 CWLW 311330 SMOKE CONTROL FORECAST FOR BC AND YUKON ISSUED BY THE MOUNTAIN WEATHER CENTRE OF ENVIRONMENT CANADA AT 7:00 AM PDT THURSDAY 31 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. 31-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 31/POOR 14 545 99/GOOD 21 1830 51/FAIR 16 815 KAMLOOPS 45/FAIR 16 821 99/GOOD 26 2124 99/GOOD 22 1802 OKANAGAN 30/POOR 9 925 99/GOOD 25 1949 59/GOOD 11 1537 CASTLEGAR 28/POOR 7 1014 75/GOOD 13 1864 99/GOOD 21 2444 CRANBROOK 47/FAIR 12 1626 94/GOOD 16 2674 99/GOOD 29 2745 REVELSTOKE 46/FAIR 8 1443 74/GOOD 13 1786 64/GOOD 11 1669 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m PENTICTON 0 0 SW 24 W 44 CRANBROOK W 26 NW 65 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 60/GOOD 21 1119 99/GOOD 27 2293 99/GOOD 15 2642 100 MILE 52/FAIR 19 1445 99/GOOD 32 2694 96/GOOD 17 2660 WILLIAMS LAKE 52/FAIR 20 1428 96/GOOD 25 2111 87/GOOD 13 2780 PUNTZI MTN 53/FAIR 20 1405 99/GOOD 32 2748 99/GOOD 19 3122 PRINCE GEORGE 61/GOOD 20 1308 99/GOOD 22 2397 93/GOOD 15 2534 BURNS LAKE 39/FAIR 20 853 56/GOOD 16 1216 99/GOOD 18 2380 SMITHERS 43/FAIR 18 920 38/FAIR 12 1023 88/GOOD 14 2249 MCBRIDE 48/FAIR 10 1570 99/GOOD 18 2436 86/GOOD 10 2500 CLEARWATER 48/FAIR 11 1183 96/GOOD 20 1847 85/GOOD 10 2500 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m PR. GEORGE SW 26 SW 35 SMITHERS S 54 S 54 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 19 520 99/GOOD 21 2044 75/GOOD 15 1581 FT ST JOHN 23/POOR 14 889 99/GOOD 20 2935 99/GOOD 28 2861 WHITEHORSE 23/POOR 8 1024 48/FAIR 11 1487 70/GOOD 12 2003 DAWSON 31/POOR 16 637 99/GOOD 13 2791 99/GOOD 25 2386 WATSON LAKE 13/POOR 11 755 63/GOOD 20 1352 38/FAIR 19 1003 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m DEASE LAKE S 35 S 26 WATSON LAKE SE 20 SE 35 WHITEHORSE E 24 E 30 MAYO S 9 SE 15 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 22/POOR 19 134 36/FAIR 6 902 88/GOOD 19 1293 FRASER VALLEY 17/POOR 12 186 38/FAIR 7 927 78/GOOD 17 1200 SRN VAN ISLD 16/POOR 9 165 46/FAIR 9 919 99/GOOD 25 1290 CNTRL VAN ISLD 19/POOR 13 167 41/FAIR 6 1124 97/GOOD 19 1582 NRN VAN ISLD 23/POOR 32 104 99/GOOD 28 1422 51/FAIR 14 1200 TERRACE 40/FAIR 20 545 69/GOOD 14 1317 37/FAIR 7 1025 STEWART 18/POOR 18 98 63/GOOD 13 1007 41/FAIR 7 1000 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m VANCOUVER SE 22 SW 31 SW 56 SANDSPIT S 50 S 56 SW 69 PORT HARDY S 57 S 52 SW 61 VENTILLATION GUIDLINES: POOR: 0-33 FAIR: 34-54 GOOD: 55-100 VENTILATION INDICES NORMALLY DROP TO POOR AFTER SUNSET. END/TCS