FPCN39 CWLW 221400 SMOKE CONTROL FORECAST FOR BC AND YUKON ISSUED BY THE MOUNTAIN WEATHER SERVICE OFFICE OF ENVIRONMENT CANADA AT 7:00 AM PDT SATURDAY 22 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 1015 15 100/GOOD 1728 20 100/GOOD 1478 19 KAMLOOPS 100/GOOD 1357 16 100/GOOD 2742 29 100/GOOD 2595 31 OKANAGAN 100/GOOD 1399 18 100/GOOD 2279 27 100/GOOD 2633 22 CASTLEGAR 52/FAIR 993 14 100/GOOD 1463 16 100/GOOD 2697 17 CRANBROOK 18/POOR 1027 13 100/GOOD 1780 20 100/GOOD 3148 17 REVELSTOKE 63/GOOD 995 10 100/GOOD 1366 15 100/GOOD 2808 10 FORECAST UPPER WINDS FOR SATURDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m PENTICTON S 9. SW 26 SW 35 CRANBROOK SW 9 W 30 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 1829 14 100/GOOD 2633 8 100/GOOD 3612 16 100 MILE 100/GOOD 1902 17 100/GOOD 3376 27 100/GOOD 3610 34 WILLIAMS LK 100/GOOD 1816 16 100/GOOD 3211 22 100/GOOD 3510 23 PUNTZI MNT 65/GOOD 1448 10 100/GOOD 3440 25 100/GOOD 3735 26 PR. GEORGE 100/GOOD 1775 13 100/GOOD 2601 15 100/GOOD 3817 12 BURNS LAKE 100/GOOD 1844 17 100/GOOD 3124 17 100/GOOD 2689 16 SMITHERS 58/GOOD 887 20 100/GOOD 2967 15 100/GOOD 2154 7 FORECAST UPPER WINDS FOR SATURDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m PR. GEORGE S 50 SW 50 SMITHERS S 50 S 67 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 26/POOR 522 23 100/GOOD 1841 9 100/GOOD 3516 21 FT STJOHN 32/POOR 1213 5 100/GOOD 2492 16 100/GOOD 3741 14 WHITEHORSE 70/GOOD 1222 16 100/GOOD 2786 15 100/GOOD 3183 14 DAWSON 24/POOR 688 5 100/GOOD 2886 11 100/GOOD 2484 3 WATSON LAKE 46/FAIR 1134 13 100/GOOD 2502 15 100/GOOD 3567 17 FORECAST UPPER WINDS FOR SATURDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m DEASE LAKE S 31 S 56 WATSON LAKE S 43 SW 50 WHITEHORSE S 39 S 59 MAYO S 48 S 52 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 788 25 100/GOOD 931 26 100/GOOD 672 20 FRASER VLY 100/GOOD 925 22 100/GOOD 1237 24 87/GOOD 572 16 SRN VRISL 100/GOOD 731 28 100/GOOD 1062 28 100/GOOD 1269 32 CNTRL VRISL 100/GOOD 701 26 100/GOOD 1256 23 100/GOOD 1507 27 NRN VRISL 93/GOOD 712 16 100/GOOD 1480 22 100/GOOD 1838 33 TERRACE 85/GOOD 1024 11 100/GOOD 1613 12 100/GOOD 1620 11 STEWART 85/GOOD 132 10 100/GOOD 940 10 73/GOOD 613 12 FORECAST UPPER WINDS FOR SATURDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m VANCOUVER S 25 S 43 S 54 SANDSPIT SW 20 SW 30 S 44 PORT HARDY S 64 S 81 S 76 VENTILATION GUIDELINES: 0-33.....POOR 34-54.....FAIR 55-100.....GOOD. VENTILATION INDICES NORMALLY DROP TO POOR AFTER SUNSET END/ $$$$^^