FPCN39 CWLW 231400 SMOKE CONTROL FORECAST FOR BC AND YUKON ISSUED BY THE MOUNTAIN WEATHER SERVICE OFFICE OF ENVIRONMENT CANADA AT 7:00 AM PDT SUNDAY 23 APRIL 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 1409 16 100/GOOD 1707 15 100/GOOD 1749 9 KAMLOOPS 100/GOOD 1831 17 100/GOOD 2940 23 100/GOOD 2533 12 OKANAGAN 100/GOOD 1848 12 100/GOOD 2975 16 100/GOOD 2548 8 CASTLEGAR 100/GOOD 1697 12 100/GOOD 2602 13 100/GOOD 3073 10 CRANBROOK 100/GOOD 2080 13 100/GOOD 3417 16 100/GOOD 3179 13 REVELSTOKE 100/GOOD 1826 11 100/GOOD 2581 7 100/GOOD 2213 5 FORECAST UPPER WINDS FOR SUNDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m PENTICTON W 9. W 20 SW 41 CRANBROOK S 17 S 46 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 100/GOOD 2742 16 100/GOOD 3655 25 100/GOOD 3333 8 100 MILE 100/GOOD 2604 19 100/GOOD 4016 26 100/GOOD 3448 13 WILLIAMS LK 100/GOOD 2597 17 100/GOOD 3908 26 100/GOOD 3491 10 PUNTZI MNT 100/GOOD 2117 19 100/GOOD 3462 23 100/GOOD 3299 19 PR. GEORGE 100/GOOD 1966 9 100/GOOD 3737 21 89/GOOD 3300 2 BURNS LAKE 92/GOOD 1341 14 100/GOOD 2799 17 100/GOOD 3231 19 SMITHERS 56/GOOD 881 19 100/GOOD 2330 16 100/GOOD 2918 16 FORECAST UPPER WINDS FOR SUNDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m PR. GEORGE SW 26 SW 26 SMITHERS SW 26 SW 33 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 100/GOOD 1229 18 100/GOOD 3176 14 100/GOOD 2521 12 FT STJOHN 62/GOOD 1026 25 100/GOOD 3008 13 100/GOOD 3652 22 WHITEHORSE 61/GOOD 1348 9 100/GOOD 2938 14 100/GOOD 2954 20 DAWSON 100/GOOD 1254 18 100/GOOD 2737 11 100/GOOD 2952 15 WATSON LAKE 40/FAIR 951 20 100/GOOD 3760 6 100/GOOD 3566 17 FORECAST UPPER WINDS FOR SUNDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m DEASE LAKE W 9 SW 9 WATSON LAKE N 9 0 0 WHITEHORSE S 13 S 17 MAYO SW 19 S 19 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 768 23 100/GOOD 1057 19 80/GOOD 726 10 FRASER VLY 100/GOOD 714 15 100/GOOD 794 13 100/GOOD 1441 6 SRN VRISL 100/GOOD 790 20 100/GOOD 1277 26 57/GOOD 453 13 CNTRL VRISL 100/GOOD 749 23 100/GOOD 1780 20 100/GOOD 987 17 NRN VRISL 85/GOOD 531 28 100/GOOD 1277 26 100/GOOD 1416 30 TERRACE 56/GOOD 545 19 100/GOOD 1454 16 100/GOOD 2313 12 STEWART 61/GOOD 357 16 75/GOOD 407 11 41/FAIR 366 11 FORECAST UPPER WINDS FOR SUNDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m VANCOUVER W 37 W 39 SW 39 SANDSPIT W 37 SW 37 SW 39 PORT HARDY SW 20 W 30 W 35 VENTILATION GUIDELINES: 0-33.....POOR 34-54.....FAIR 55-100.....GOOD. VENTILATION INDICES NORMALLY DROP TO POOR AFTER SUNSET END/WJW $$$$^^