FPCN39 CWLW 261400 SMOKE CONTROL FORECAST FOR BC AND YUKON ISSUED BY THE MOUNTAIN WEATHER SERVICE OFFICE OF ENVIRONMENT CANADA AT 7:00 AM PDT WEDNESDAY 26 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 46/FAIR 1075 12 73/GOOD 1683 4 100/GOOD 1228 15 KAMLOOPS 53/FAIR 1154 18 100/GOOD 2308 7 100/GOOD 1657 22 OKANAGAN 50/FAIR 1361 11 100/GOOD 2297 5 100/GOOD 1522 19 CASTLEGAR 27/POOR 1379 10 100/GOOD 2375 10 100/GOOD 1647 16 CRANBROOK 28/POOR 1460 17 100/GOOD 2725 11 100/GOOD 2105 16 REVELSTOKE 20/POOR 680 13 100/GOOD 2053 6 100/GOOD 1651 15 FORECAST UPPER WINDS FOR WEDNESDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m PENTICTON SE 9. SE 20 S 37 CRANBROOK 0 0 S 17 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 48/FAIR 805 18 100/GOOD 3529 10 100/GOOD 2322 26 100 MILE 52/FAIR 1449 20 100/GOOD 3127 8 100/GOOD 2139 27 WILLIAMS LK 54/FAIR 1452 17 100/GOOD 3499 10 100/GOOD 1892 23 PUNTZI MNT 42/FAIR 1110 17 100/GOOD 3368 12 100/GOOD 1775 24 PR. GEORGE 46/FAIR 901 22 100/GOOD 2760 7 100/GOOD 2596 23 BURNS LAKE 51/FAIR 1025 23 100/GOOD 2644 14 100/GOOD 2091 29 SMITHERS 53/FAIR 879 20 100/GOOD 2315 10 100/GOOD 1919 28 FORECAST UPPER WINDS FOR WEDNESDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m PR. GEORGE SE 22 S 19 SMITHERS E 46 SE 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 15/POOR 462 11 90/GOOD 3282 13 77/GOOD 2622 2 FT STJOHN 15/POOR 806 6 83/GOOD 1997 10 100/GOOD 2896 14 WHITEHORSE 59/GOOD 1115 19 86/GOOD 2221 20 100/GOOD 2192 13 DAWSON 34/FAIR 548 23 77/GOOD 3039 18 100/GOOD 2533 11 WATSON LAKE 37/FAIR 898 22 68/GOOD 2670 15 100/GOOD 2525 8 FORECAST UPPER WINDS FOR WEDNESDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m DEASE LAKE E 22 E 26 WATSON LAKE N 11 0 0 WHITEHORSE S 28 S 24 MAYO SW 26 S 28 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 35/FAIR 1035 14 85/GOOD 645 1 47/FAIR 43 44 FRASER VLY 51/FAIR 1078 10 67/GOOD 1307 2 53/FAIR 337 26 SRN VRISL 44/FAIR 453 9 73/GOOD 598 9 44/FAIR 453 10 CNTRL VRISL 47/GOOD 607 17 75/GOOD 968 10 48/FAIR 255 30 NRN VRISL 85/GOOD 769 17 100/GOOD 1110 11 15/POOR 51 38 TERRACE 52/FAIR 910 22 100/GOOD 1155 11 100/GOOD 1578 19 STEWART 43/FAIR 271 22 58/GOOD 197 13 55/GOOD 238 23 FORECAST UPPER WINDS FOR WEDNESDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m VANCOUVER SE 37 S 44 S 43 SANDSPIT SE 42 SE 48 SE 50 PORT HARDY SE 55 SE 59 S 39 VENTILATION GUIDELINES: 0-33.....POOR 34-54.....FAIR 55-100.....GOOD. VENTILATION INDICES NORMALLY DROP TO POOR AFTER SUNSET END/MtnWC $$$$^^