FPCN39 CWLW 271400 SMOKE CONTROL FORECAST FOR BC AND YUKON ISSUED BY THE MOUNTAIN WEATHER CENTRE OF ENVIRONMENT CANADA AT 7:00 AM PDT THURSDAY 27 JULY 2000 FOR TODAY. VENTILATION INDICES AND MIXING HEIGHTS. MIXING HEIGHTS IN METRES ABOVE SEA LEVEL. AVERAGE WINDS IN KM/HR. SUBTRACT 20 FROM THE VENTILATION INDEX IN VALLEYS IF THE MIXING HEIGHT IS BELOW THE HEIGHT OF THE LOCAL HILLS. SOUTHERN INTERIOR *** TODAY *** *** TOMORROW *** ****** 7:00 AM **** **** 4:00 PM ***** ***** 4:00 PM ***** VI MXG HT Wnd VI MXG HT Wnd VI MXG HT Wnd (m) (km/h) (m) (km/h) (m) (km/h) FRSR CANYON 100/GOOD 832 18 100/GOOD 964 18 100/GOOD 1442 14 KAMLOOPS 100/GOOD 1063 19 100/GOOD 1469 22 100/GOOD 1924 17 OKANAGAN 83/GOOD 1098 10 100/GOOD 1924 15 100/GOOD 1444 10 CASTLEGAR 22/POOR 726 9 100/GOOD 2499 16 100/GOOD 2532 13 CRANBROOK 24/POOR 1102 13 100/GOOD 3146 21 100/GOOD 3185 19 REVELSTOKE 34/FAIR 758 12 100/GOOD 1606 10 100/GOOD 1573 10 FORECAST UPPER WINDS FOR THURSDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m PENTICTON 0 0 W 11 SW 19 CRANBROOK SW 13 SW 33 CENTRAL INTERIOR *** TODAY *** *** TOMORROW *** ****** 7:00 AM **** **** 4:00 PM ***** ***** 4:00 PM ***** VI MXG HT Wnd VI MXG HT Wnd VI MXG HT Wnd (m) (km/h) (m) (km/h) (m) (km/h) QUESNEL 76/GOOD 941 24 100/GOOD 1509 25 100/GOOD 2665 15 100 MILE 100/GOOD 1748 24 100/GOOD 2172 26 100/GOOD 2637 18 WILLIAMS LK 100/GOOD 1520 22 100/GOOD 1967 26 100/GOOD 3039 9 PUNTZI MNT 100/GOOD 1560 17 100/GOOD 2210 26 100/GOOD 3040 20 PR. GEORGE 91/GOOD 1181 22 100/GOOD 2028 23 100/GOOD 2623 18 BURNS LAKE 100/GOOD 1287 19 100/GOOD 1456 19 100/GOOD 2203 25 SMITHERS 82/GOOD 1027 18 100/GOOD 1188 20 100/GOOD 1224 16 FORECAST UPPER WINDS FOR THURSDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m PR. GEORGE SW 20 SW 28 SMITHERS S 33 SW 35 NORTHERN BC/YUKON *** TODAY *** *** TOMORROW *** ****** 7:00 AM **** **** 4:00 PM ***** ***** 4:00 PM ***** VI MXG HT Wnd VI MXG HT Wnd VI MXG HT Wnd (m) (km/h) (m) (km/h) (m) (km/h) FT NLSN 24/POOR 575 12 100/GOOD 2089 18 100/GOOD 3108 28 FT STJOHN 28/POOR 848 24 100/GOOD 2828 21 100/GOOD 3203 36 WHITEHORSE 16/POOR 797 9 76/GOOD 1657 9 100/GOOD 2092 20 DAWSON 44/FAIR 929 6 100/GOOD 2248 16 90/GOOD 1579 8 WATSON LAKE 13/POOR 723 16 85/GOOD 1343 17 100/GOOD 2164 28 FORECAST UPPER WINDS FOR THURSDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m DEASE LAKE S 24 S 33 WATSON LAKE SE 17 S 20 WHITEHORSE SE 20 SE 26 MAYO S 20 S 20 COAST *** TODAY *** *** TOMORROW *** ****** 7:00 AM **** **** 4:00 PM ***** ***** 4:00 PM ***** VI MXG HT Wnd VI MXG HT Wnd VI MXG HT Wnd (m) (km/h) (m) (km/h) (m) (km/h) VANCOUVER 100/GOOD 696 24 75/GOOD 466 27 26/POOR 313 9 FRASER VLY 100/GOOD 846 19 100/GOOD 1131 17 30/POOR 516 6 SRN VRISL 90/GOOD 578 19 31/POOR 152 16 34/FAIR 390 6 CNTRL VRISL 100/GOOD 553 24 54/FAIR 346 20 68/GOOD 1121 6 NRN VRISL 20/POOR 88 26 15/POOR 54 28 98/GOOD 868 13 TERRACE 19/POOR 332 17 34/FAIR 446 17 97/GOOD 778 19 STEWART 34/FAIR 246 17 21/POOR 136 17 34/FAIR 247 17 FORECAST UPPER WINDS FOR THURSDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m VANCOUVER SW 9. S 17 SW 24 SANDSPIT S 37 S 46 S 50 PORT HARDY S 42 S 46 S 48 VENTILATION GUIDELINES: 0-33.....POOR 34-54.....FAIR 55-100.....GOOD. VENTILATION INDICES NORMALLY DROP TO POOR AFTER SUNSET END/ $$$$^^