FPCN39 CWLW 231400 SMOKE CONTROL FORECAST FOR BC AND YUKON ISSUED BY THE MOUNTAIN WEATHER CENTRE OF ENVIRONMENT CANADA AT 7:00 AM PDT SUNDAY 23 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 1176 36 100/GOOD 1890 16 100/GOOD 2172 17 KAMLOOPS 50/FAIR 1280 4 100/GOOD 2840 17 100/GOOD 2604 19 OKANAGAN 40/FAIR 1397 8 100/GOOD 2463 19 100/GOOD 3000 13 CASTLEGAR 100/GOOD 1796 14 100/GOOD 3147 17 100/GOOD 2992 12 CRANBROOK 100/GOOD 1856 24 100/GOOD 2281 26 100/GOOD 3229 16 REVELSTOKE 53/FAIR 862 15 100/GOOD 1360 17 100/GOOD 2117 7 FORECAST UPPER WINDS FOR SUNDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m PENTICTON 0 0 S 9 S 15 CRANBROOK 0 0 S 11 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 50/FAIR 1350 5 100/GOOD 2387 21 100/GOOD 2302 11 100 MILE 100/GOOD 1963 32 100/GOOD 3175 19 100/GOOD 2765 12 WILLIAMS LK 50/FAIR 1912 15 100/GOOD 3177 17 100/GOOD 2666 10 PUNTZI MNT 100/GOOD 1681 28 100/GOOD 3254 23 100/GOOD 2817 14 PR. GEORGE 100/GOOD 1316 19 100/GOOD 2139 27 100/GOOD 2446 7 BURNS LAKE 30/POOR 1450 4 100/GOOD 2103 24 100/GOOD 2078 8 SMITHERS 50/FAIR 1245 9 100/GOOD 1712 19 80/GOOD 1343 8 FORECAST UPPER WINDS FOR SUNDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m PR. GEORGE 0 0 SW 11 SMITHERS S 20 S 31 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 13/POOR 420 14 100/GOOD 2069 22 66/GOOD 1907 3 FT STJOHN 13/POOR 744 7 77/GOOD 1506 8 59/GOOD 1974 3 WHITEHORSE 50/FAIR 932 26 85/GOOD 1592 12 81/GOOD 1856 10 DAWSON 42/FAIR 808 3 100/GOOD 2948 18 100/GOOD 2087 10 WATSON LAKE 17/POOR 786 10 100/GOOD 2541 13 100/GOOD 2272 8 FORECAST UPPER WINDS FOR SUNDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m DEASE LAKE S 30 SW 39 WATSON LAKE SW 22 SW 26 WHITEHORSE S 28 S 31 MAYO S 35 S 35 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 44/FAIR 600 8 81/GOOD 1025 8 36/FAIR 460 3 FRASER VLY 100/GOOD 808 19 69/GOOD 981 11 85/GOOD 1072 11 SRN VRISL 88/GOOD 552 24 37/FAIR 381 8 24/POOR 230 13 CNTRL VRISL 63/GOOD 443 24 73/GOOD 906 14 39/FAIR 622 7 NRN VRISL 53/FAIR 528 13 66/GOOD 665 11 25/POOR 133 27 TERRACE 76/GOOD 949 11 100/GOOD 1084 13 30/POOR 500 11 STEWART 35/FAIR 345 9 45/FAIR 467 9 24/POOR 211 13 FORECAST UPPER WINDS FOR SUNDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m VANCOUVER 0 0 S 17 S 33 SANDSPIT S 14 S 30 S 39 PORT HARDY N 18 W 9 S 15 VENTILATION GUIDELINES: 0-33.....POOR 34-54.....FAIR 55-100.....GOOD. VENTILATION INDICES NORMALLY DROP TO POOR AFTER SUNSET END/ $$$$^^