FPCN39 CWLW 211400 SMOKE CONTROL FORECAST FOR BC AND YUKON ISSUED BY THE MOUNTAIN WEATHER SERVICE OFFICE OF ENVIRONMENT CANADA AT 7:00 AM PDT SUNDAY 21 MAY 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 64/GOOD 581 53 100/GOOD 1502 26 100/GOOD 1061 22 KAMLOOPS 50/FAIR 1346 16 100/GOOD 1927 24 100/GOOD 1772 29 OKANAGAN 48/FAIR 1584 18 100/GOOD 2019 20 100/GOOD 1028 20 CASTLEGAR 40/FAIR 1296 13 100/GOOD 2220 17 100/GOOD 1271 15 CRANBROOK 76/GOOD 1531 14 100/GOOD 2729 23 100/GOOD 1945 20 REVELSTOKE 30/POOR 1587 13 100/GOOD 2023 14 51/FAIR 863 17 FORECAST UPPER WINDS FOR SATURDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m PENTICTON SW 11 W 28 W 56 CRANBROOK SW 13 SW 41 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 51/FAIR 1289 13 100/GOOD 1814 24 100/GOOD 2234 28 100 MILE 50/FAIR 1665 19 100/GOOD 2368 24 100/GOOD 2727 32 WILLIAMS LK 51/FAIR 1329 14 100/GOOD 2188 23 100/GOOD 2881 30 PUNTZI MNT 18/POOR 1049 9 100/GOOD 1909 30 100/GOOD 3061 35 PR. GEORGE 47/FAIR 1047 15 100/GOOD 1821 21 100/GOOD 2242 32 BURNS LAKE 18/POOR 961 2 57/GOOD 1136 15 100/GOOD 1986 36 SMITHERS 23/POOR 1086 3 65/GOOD 1000 14 100/GOOD 1568 29 FORECAST UPPER WINDS FOR SATURDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m PR. GEORGE SW 35 SW 30 SMITHERS SW 20 SW 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 40/FAIR 1508 26 100/GOOD 2592 12 100/GOOD 2968 22 FT STJOHN 100/GOOD 1653 38 100/GOOD 2410 22 100/GOOD 3076 32 WHITEHORSE 50/FAIR 1977 23 100/GOOD 2570 9 97/GOOD 1743 12 DAWSON 40/FAIR 1470 24 100/GOOD 2626 24 100/GOOD 3230 3 WATSON LAKE 51/FAIR 1836 25 86/GOOD 2738 6 100/GOOD 2035 14 FORECAST UPPER WINDS FOR SATURDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m DEASE LAKE S 15 S 17 WATSON LAKE W 22 W 15 WHITEHORSE SW 17 S 11 MAYO W 13 SW 13 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 13/POOR 103 5 51/FAIR 443 12 65/GOOD 350 26 FRASER VLY 32/POOR 504 9 44/FAIR 900 14 58/GOOD 376 25 SRN VRISL 19/POOR 156 12 46/FAIR 308 18 70/GOOD 362 25 CNTRL VRISL 19/POOR 182 12 50/FAIR 845 17 100/GOOD 920 22 NRN VRISL 14/POOR 69 14 41/FAIR 146 34 85/GOOD 483 21 TERRACE 21/POOR 367 9 56/GOOD 604 17 96/GOOD 761 21 STEWART 31/POOR 343 6 35/FAIR 181 14 40/FAIR 204 23 FORECAST UPPER WINDS FOR SATURDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m VANCOUVER SW 33 W 46 W 52 SANDSPIT W 48 W 44 W 46 PORT HARDY W 33 W 37 W 50 VENTILATION GUIDELINES: 0-33.....POOR 34-54.....FAIR 55-100.....GOOD. VENTILATION INDICES NORMALLY DROP TO POOR AFTER SUNSET END/ $$$$^^