FPCN39 CWLW 281400 SMOKE CONTROL FORECAST FOR BC AND YUKON ISSUED BY THE MOUNTAIN WEATHER SERVICE OFFICE OF ENVIRONMENT CANADA AT 7:00 AM PDT FRIDAY 28 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 1352 18 100/GOOD 1319 21 100/GOOD 1602 15 KAMLOOPS 100/GOOD 1490 22 100/GOOD 2166 31 100/GOOD 2131 21 OKANAGAN 100/GOOD 1764 18 100/GOOD 2217 22 100/GOOD 2317 15 CASTLEGAR 100/GOOD 1789 14 100/GOOD 2641 16 100/GOOD 2030 12 CRANBROOK 100/GOOD 1992 24 49/FAIR 1187 20 100/GOOD 2979 16 REVELSTOKE 100/GOOD 1483 12 100/GOOD 2209 14 100/GOOD 2000 11 FORECAST UPPER WINDS FOR FRIDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m PENTICTON SE 12 S 24 SW 44 CRANBROOK 0 0 S 19 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 2123 23 100/GOOD 3471 36 100/GOOD 3246 24 100 MILE 100/GOOD 2249 18 100/GOOD 3065 35 100/GOOD 2977 23 WILLIAMS LK 100/GOOD 2486 23 100/GOOD 3593 34 100/GOOD 3220 21 PUNTZI MNT 100/GOOD 2356 22 100/GOOD 3867 36 100/GOOD 2810 23 PR. GEORGE 100/GOOD 2445 25 100/GOOD 3822 32 100/GOOD 3281 17 BURNS LAKE 100/GOOD 1476 13 100/GOOD 2369 22 100/GOOD 2520 21 SMITHERS 86/GOOD 1382 10 100/GOOD 2473 14 100/GOOD 1848 18 FORECAST UPPER WINDS FOR FRIDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m PR. GEORGE SE 54 SE 46 SMITHERS E 52 SE 56 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 32/POOR 839 34 100/GOOD 1948 9 100/GOOD 3557 30 FT STJOHN 100/GOOD 1748 26 100/GOOD 3528 26 100/GOOD 3486 36 WHITEHORSE 25/POOR 959 6 68/GOOD 1162 20 100/GOOD 1882 29 DAWSON 34/FAIR 548 24 100/GOOD 1485 20 79/GOOD 1142 19 WATSON LAKE 99/GOOD 1230 32 100/GOOD 1854 23 100/GOOD 2867 31 FORECAST UPPER WINDS FOR FRIDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m DEASE LAKE SE 30 SE 26 WATSON LAKE SW 9 S 15 WHITEHORSE S 9 SE 19 MAYO S 13 S 15 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 695 50 67/GOOD 314 33 79/GOOD 658 18 FRASER VLY 100/GOOD 748 29 100/GOOD 680 23 100/GOOD 1346 10 SRN VRISL 100/GOOD 606 36 100/GOOD 924 33 47/FAIR 408 14 CNTRL VRISL 100/GOOD 660 34 100/GOOD 971 30 99/GOOD 764 17 NRN VRISL 100/GOOD 459 43 100/GOOD 571 33 100/GOOD 448 41 TERRACE 63/GOOD 741 10 100/GOOD 1585 9 100/GOOD 829 16 STEWART 20/POOR 284 11 28/POOR 291 9 30/POOR 189 18 FORECAST UPPER WINDS FOR FRIDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m VANCOUVER SE 53 S 72 S 91 SANDSPIT NE 37 E 39 E 44 PORT HARDY SE 74 SE 91 S 83 VENTILATION GUIDELINES: 0-33.....POOR 34-54.....FAIR 55-100.....GOOD. VENTILATION INDICES NORMALLY DROP TO POOR AFTER SUNSET END/MtnWC $$$$^^