FPCN39 CWLW 041400 SMOKE CONTROL FORECAST FOR BC AND YUKON ISSUED BY THE MOUNTAIN WEATHER CENTRE OF ENVIRONMENT CANADA AT 7:00 AM PDT FRIDAY 4 AUGUST 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 53/FAIR 572 18 100/GOOD 2276 6 100/GOOD 2336 9 KAMLOOPS 47/FAIR 766 12 100/GOOD 2607 13 100/GOOD 2427 11 OKANAGAN 50/FAIR 528 12 100/GOOD 2442 11 100/GOOD 2464 10 CASTLEGAR 34/FAIR 904 8 100/GOOD 2699 11 100/GOOD 2758 12 CRANBROOK 35/FAIR 1267 9 100/GOOD 3121 13 100/GOOD 3392 19 REVELSTOKE 46/FAIR 1168 7 100/GOOD 2240 9 100/GOOD 2172 12 FORECAST UPPER WINDS FOR FRIDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m PENTICTON 0 0 N 9 0 0 CRANBROOK 0 0 SW 9 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 24/POOR 677 17 100/GOOD 2196 11 100/GOOD 2009 13 100 MILE 52/FAIR 1273 21 100/GOOD 3005 17 100/GOOD 2732 14 WILLIAMS LK 38/FAIR 1176 21 100/GOOD 2894 13 100/GOOD 2616 10 PUNTZI MNT 32/POOR 1181 15 100/GOOD 2813 5 100/GOOD 2988 15 PR. GEORGE 16/POOR 793 8 100/GOOD 2405 10 100/GOOD 2137 19 BURNS LAKE 29/POOR 902 18 100/GOOD 2123 13 100/GOOD 1849 20 SMITHERS 27/POOR 711 15 100/GOOD 1671 15 100/GOOD 1576 18 FORECAST UPPER WINDS FOR FRIDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m PR. GEORGE N 9 N 11 SMITHERS N 20 N 28 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 28/POOR 519 27 100/GOOD 1416 16 100/GOOD 1957 22 FT STJOHN 15/POOR 756 11 100/GOOD 2788 17 100/GOOD 2485 22 WHITEHORSE 55/FAIR 837 29 100/GOOD 2019 30 100/GOOD 2319 13 DAWSON 14/POOR 401 19 72/GOOD 1146 14 100/GOOD 2403 15 WATSON LAKE 45/FAIR 922 26 100/GOOD 2074 19 100/GOOD 2415 25 FORECAST UPPER WINDS FOR FRIDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m DEASE LAKE NW 15 NW 17 WATSON LAKE NW 19 NW 22 WHITEHORSE SW 41 SW 43 MAYO W 24 SW 33 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 15/POOR 58 9 24/POOR 242 11 27/POOR 308 4 FRASER VLY 15/POOR 154 6 51/FAIR 778 10 53/FAIR 866 10 SRN VRISL 17/POOR 108 12 23/POOR 243 6 22/POOR 241 10 CNTRL VRISL 19/POOR 140 9 42/FAIR 735 5 45/FAIR 783 1 NRN VRISL 14/POOR 95 3 25/POOR 204 19 45/FAIR 427 21 TERRACE 24/POOR 401 13 100/GOOD 1352 10 91/GOOD 1254 9 STEWART 28/POOR 190 19 52/FAIR 452 15 58/GOOD 465 14 FORECAST UPPER WINDS FOR FRIDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m VANCOUVER NE 14 E 15 NE 9 SANDSPIT N 38 N 33 N 37 PORT HARDY N 24 NE 20 N 19 VENTILATION GUIDELINES: 0-33.....POOR 34-54.....FAIR 55-100.....GOOD. VENTILATION INDICES NORMALLY DROP TO POOR AFTER SUNSET END/MTNWC $$$$^^