FPCN39 CWLW 171330 SMOKE CONTROL FORECAST FOR BC AND YUKON ISSUED BY THE MOUNTAIN WEATHER CENTRE OF ENVIRONMENT CANADA AT 7:00 AM PDT TUESDAY 17 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. 17-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 54/GOOD 13 1018 72/GOOD 15 1342 69/GOOD 11 1638 KAMLOOPS 53/FAIR 14 1052 85/GOOD 19 1551 92/GOOD 14 2266 OKANAGAN 66/GOOD 15 1403 75/GOOD 15 1649 89/GOOD 12 2547 CASTLEGAR 61/GOOD 14 1393 67/GOOD 11 1832 65/GOOD 10 1873 CRANBROOK 70/GOOD 15 1981 97/GOOD 18 2583 99/GOOD 18 2870 REVELSTOKE 52/FAIR 13 1191 67/GOOD 14 1492 75/GOOD 11 2070 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m PENTICTON 0 0 W 37 NW 39 CRANBROOK SW 31 SW 35 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 32/POOR 18 798 60/GOOD 17 1264 68/GOOD 20 1299 100 MILE 33/FAIR 16 1245 55/GOOD 21 1444 66/GOOD 12 2140 WILLIAMS LAKE 22/POOR 16 1189 55/GOOD 16 1502 64/GOOD 10 2279 PUNTZI MTN 49/FAIR 23 1291 95/GOOD 18 2502 99/GOOD 23 2610 PRINCE GEORGE 24/POOR 19 844 80/GOOD 16 1938 71/GOOD 24 1364 BURNS LAKE 35/FAIR 19 824 99/GOOD 20 2151 94/GOOD 27 1572 SMITHERS 28/POOR 16 756 78/GOOD 15 1813 76/GOOD 21 1396 MCBRIDE 28/POOR 11 1170 55/GOOD 14 1377 46/FAIR 17 1202 CLEARWATER 18/POOR 6 675 60/GOOD 22 944 45/FAIR 9 1261 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m PR. GEORGE NW 28 N 24 SMITHERS W 15 S 13 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 13/POOR 13 437 22/POOR 29 465 44/FAIR 26 673 FT ST JOHN 43/FAIR 22 1020 50/FAIR 14 1353 72/GOOD 23 1409 WHITEHORSE 13/POOR 3 970 55/GOOD 9 2126 81/GOOD 11 2567 DAWSON 20/POOR 14 522 99/GOOD 11 3619 90/GOOD 11 2683 WATSON LAKE 31/POOR 14 995 56/GOOD 7 2224 99/GOOD 19 2566 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m DEASE LAKE S 9 S 11 WATSON LAKE SE 11 SE 13 WHITEHORSE N 11 NE 19 MAYO NE 9 N 22 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 42/FAIR 11 634 62/GOOD 17 755 46/FAIR 15 537 FRASER VALLEY 54/GOOD 16 706 65/GOOD 13 1137 47/FAIR 12 742 SRN VAN ISLD 55/GOOD 22 495 54/GOOD 15 712 36/FAIR 12 468 CNTRL VAN ISLD 39/FAIR 17 390 57/GOOD 10 1129 34/FAIR 9 580 NRN VAN ISLD 19/POOR 9 432 55/FAIR 12 711 46/FAIR 16 520 TERRACE 31/POOR 9 690 59/GOOD 13 1124 66/GOOD 14 1235 STEWART 19/POOR 4 470 56/GOOD 12 850 49/FAIR 15 597 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m VANCOUVER 0 0 0 0 NW 15 SANDSPIT NW 9 NW 9 NW 13 PORT HARDY W 9 NW 24 NW 28 VENTILATION GUIDLINES: POOR: 0-33 FAIR: 34-54 GOOD: 55-100 VENTILATION INDICES NORMALLY DROP TO POOR AFTER SUNSET. END/GF