FPCN39 CWLW 191424 SMOKE CONTROL FORECAST FOR BC AND YUKON ISSUED BY THE MOUNTAIN WEATHER CENTRE OF ENVIRONMENT CANADA AT 7:00 AM PDT THURSDAY 19 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. 19-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 36/FAIR 10 788 54/GOOD 9 1384 57/GOOD 11 1251 KAMLOOPS 32/POOR 19 588 54/FAIR 9 1481 42/FAIR 7 1327 OKANAGAN 51/FAIR 15 1085 71/GOOD 9 2249 62/GOOD 8 2062 CASTLEGAR 15/POOR 3 857 86/GOOD 12 2444 75/GOOD 9 2477 CRANBROOK 42/FAIR 13 1482 99/GOOD 17 2908 95/GOOD 14 2962 REVELSTOKE 39/FAIR 11 1004 40/FAIR 6 1502 37/FAIR 4 1890 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m PENTICTON 0 0 W 9 SW 11 CRANBROOK SW 19 SW 22 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 46/FAIR 17 1013 45/FAIR 9 1413 82/GOOD 15 1965 100 MILE 59/GOOD 23 1450 55/GOOD 15 1637 26/POOR 6 1501 WILLIAMS LAKE 52/FAIR 21 1402 43/FAIR 13 1489 40/FAIR 6 2013 PUNTZI MTN 60/GOOD 27 1357 64/GOOD 19 1615 62/GOOD 13 1905 PRINCE GEORGE 40/FAIR 17 1069 45/FAIR 10 1472 63/GOOD 9 2157 BURNS LAKE 64/GOOD 25 1086 75/GOOD 21 1399 68/GOOD 15 1553 SMITHERS 58/GOOD 23 1019 64/GOOD 14 1489 57/GOOD 15 1274 MCBRIDE 41/FAIR 13 1254 55/GOOD 8 2034 27/POOR 3 1865 CLEARWATER 41/FAIR 16 810 51/FAIR 14 1072 28/POOR 7 911 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m PR. GEORGE W 19 W 20 SMITHERS N 31 N 37 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 42/FAIR 32 602 13/POOR 36 404 96/GOOD 20 1841 FT ST JOHN 37/FAIR 19 993 37/FAIR 7 1506 87/GOOD 19 1947 WHITEHORSE 14/POOR 13 778 37/FAIR 3 2617 72/GOOD 10 2350 DAWSON 12/POOR 5 476 99/GOOD 18 2847 99/GOOD 16 2757 WATSON LAKE 15/POOR 9 817 87/GOOD 11 2865 42/FAIR 4 2422 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m DEASE LAKE N 20 NE 35 WATSON LAKE NE 17 NE 24 WHITEHORSE 0 0 0 0 MAYO S 17 SW 19 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 15/POOR 4 280 23/POOR 7 388 17/POOR 6 246 FRASER VALLEY 26/POOR 11 363 39/FAIR 8 846 51/FAIR 12 832 SRN VAN ISLD 19/POOR 13 161 21/POOR 5 457 30/POOR 12 359 CNTRL VAN ISLD 28/POOR 13 315 29/POOR 5 807 26/POOR 4 833 NRN VAN ISLD 38/FAIR 15 428 69/GOOD 21 761 18/POOR 5 357 TERRACE 45/FAIR 13 811 50/FAIR 9 1234 71/GOOD 11 1675 STEWART 31/POOR 23 197 54/FAIR 15 688 50/FAIR 13 701 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m VANCOUVER 0 0 0 0 0 0 SANDSPIT NW 20 N 22 N 22 PORT HARDY N 39 N 46 N 50 VENTILATION GUIDELINES: POOR: 0-33 FAIR: 34-54 GOOD: 55-100 VENTILATION INDICES NORMALLY DROP TO POOR AFTER SUNSET. END/LEC