FPCN39 CWLW 151400 SMOKE CONTROL FORECAST FOR BC AND YUKON ISSUED BY THE MOUNTAIN WEATHER SERVICE OFFICE OF ENVIRONMENT CANADA AT 7:00 AM PDT SATURDAY 15 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 40/FAIR 797 14 50/FAIR 1104 9 100/GOOD 1607 16 KAMLOOPS 20/POOR 1087 14 45/FAIR 2011 13 100/GOOD 2243 22 OKANAGAN 15/POOR 1232 7 50/FAIR 1993 14 100/GOOD 1824 20 CASTLEGAR 20/POOR 810 15 40/FAIR 1262 10 39/FAIR 927 14 CRANBROOK 29/POOR 1190 8 45/FAIR 1591 13 58/GOOD 1510 19 REVELSTOKE 20/POOR 938 9 35/FAIR 1348 2 47/FAIR 1149 9 FORECAST UPPER WINDS FOR SATURDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m PENTICTON S 9. SW 15 W 39 CRANBROOK 0 0 S 28 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 20/POOR 978 12 40/FAIR 2724 1 100/GOOD 3125 14 100 MILE 15/POOR 1833 8 39/FAIR 3113 14 100/GOOD 3125 14 WILLIAMS LK 25/POOR 1640 10 45/FAIR 3271 6 100/GOOD 3553 16 PUNTZI MNT 20/POOR 1646 12 40/FAIR 3213 14 100/GOOD 3434 28 PR. GEORGE 20/POOR 1085 18 50/FAIR 2324 1 100/GOOD 3128 13 BURNS LAKE 10/POOR 1568 19 45/FAIR 2346 5 100/GOOD 2598 21 SMITHERS 15/POOR 1427 19 50/FAIR 1859 5 100/GOOD 2070 17 FORECAST UPPER WINDS FOR SATURDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m PR. GEORGE E 48 E 30 SMITHERS E 67 E 89 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 18/POOR 469 20 75/GOOD 1499 10 100/GOOD 1301 14 FT STJOHN 18/POOR 783 16 77/GOOD 1821 11 100/GOOD 1785 16 WHITEHORSE 38/FAIR 875 25 100/GOOD 1985 31 100/GOOD 1948 13 DAWSON 32/POOR 506 25 100/GOOD 1026 22 37/FAIR 972 5 WATSON LAKE 16/POOR 785 4 60/GOOD 1891 9 100/GOOD 2126 11 FORECAST UPPER WINDS FOR SATURDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m DEASE LAKE E 41 E 46 WATSON LAKE N 9 NE 24 WHITEHORSE SE 9 0 0 MAYO SW 11 W 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 40/FAIR 900 12 50/FAIR 666 15 100/GOOD 1206 11 FRASER VLY 30/POOR 920 9 45/FAIR 1491 13 100/GOOD 1759 17 SRN VRISL 25/POOR 766 8 52/FAIR 373 16 100/GOOD 1348 15 CNTRL VRISL 30/POOR 887 8 50/FAIR 871 15 100/GOOD 1418 11 NRN VRISL 30/POOR 1264 7 52/FAIR 1468 6 100/GOOD 1564 17 TERRACE 30/POOR 1052 18 96/GOOD 1866 4 100/GOOD 1849 13 STEWART 20/POOR 458 23 80/GOOD 288 3 50/FAIR 488 10 FORECAST UPPER WINDS FOR SATURDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m VANCOUVER SW 29 SW 41 SW 39 SANDSPIT NE 51 NE 57 NE 72 PORT HARDY S 25 S 28 SW 33 VENTILATION GUIDELINES: 0-33.....POOR 34-54.....FAIR 55-100.....GOOD. VENTILATION INDICES NORMALLY DROP TO POOR AFTER SUNSET END/ $$$$^^