FPCN39 CWLW 181400 SMOKE CONTROL FORECAST FOR BC AND YUKON ISSUED BY THE MOUNTAIN WEATHER SERVICE OFFICE OF ENVIRONMENT CANADA AT 7:00 AM PDT TUESDAY 18 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 12/POOR 273 8 100/GOOD 1660 12 100/GOOD 1106 12 KAMLOOPS 19/POOR 495 10 100/GOOD 2068 13 100/GOOD 1968 18 OKANAGAN 17/POOR 517 12 100/GOOD 2169 10 100/GOOD 1661 14 CASTLEGAR 28/POOR 674 16 62/GOOD 2256 3 100/GOOD 2134 11 CRANBROOK 37/FAIR 1187 16 64/GOOD 2483 2 100/GOOD 2518 10 REVELSTOKE 23/POOR 584 16 100/GOOD 1931 6 100/GOOD 1719 8 FORECAST UPPER WINDS FOR TUESDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m PENTICTON 0 0 W 19 W 33 CRANBROOK W 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 28/POOR 704 18 100/GOOD 2744 15 100/GOOD 2674 18 100 MILE 31/POOR 1127 19 100/GOOD 2937 16 100/GOOD 2114 12 WILLIAMS LK 32/POOR 1149 13 100/GOOD 2887 13 100/GOOD 2037 12 PUNTZI MNT 23/POOR 1041 17 100/GOOD 2608 17 100/GOOD 2413 20 PR. GEORGE 23/POOR 814 20 100/GOOD 2567 9 100/GOOD 2676 14 BURNS LAKE 14/POOR 778 11 100/GOOD 1637 14 100/GOOD 1920 25 SMITHERS 14/POOR 602 10 79/GOOD 1334 10 100/GOOD 1409 17 FORECAST UPPER WINDS FOR TUESDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m PR. GEORGE NW 33 W 30 SMITHERS W 28 W 22 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 19/POOR 472 21 100/GOOD 1678 10 100/GOOD 2734 18 FT STJOHN 18/POOR 778 18 100/GOOD 1606 12 100/GOOD 2705 32 WHITEHORSE 95/GOOD 1155 24 100/GOOD 2080 27 100/GOOD 1967 27 DAWSON 35/FAIR 558 23 53/FAIR 787 9 70/GOOD 806 14 WATSON LAKE 24/POOR 823 18 100/GOOD 1889 17 100/GOOD 2219 18 FORECAST UPPER WINDS FOR TUESDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m DEASE LAKE SW 19 W 31 WATSON LAKE W 28 W 31 WHITEHORSE SW 30 W 31 MAYO W 19 W 41 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 19/POOR 130 14 36/FAIR 402 6 37/FAIR 625 6 FRASER VLY 18/POOR 160 10 90/GOOD 1125 12 73/GOOD 1157 9 SRN VRISL 13/POOR 134 7 39/FAIR 328 19 36/FAIR 447 2 CNTRL VRISL 14/POOR 95 3 82/GOOD 1012 9 63/GOOD 981 3 NRN VRISL 18/POOR 126 16 67/GOOD 853 16 100/GOOD 859 22 TERRACE 21/POOR 409 9 51/FAIR 653 12 100/GOOD 1181 21 STEWART 27/POOR 240 12 18/POOR 108 14 28/POOR 181 17 FORECAST UPPER WINDS FOR TUESDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m VANCOUVER 0 0 W 17 W 28 SANDSPIT SW 18 SW 19 W 19 PORT HARDY N 22 N 11 W 15 VENTILATION GUIDELINES: 0-33.....POOR 34-54.....FAIR 55-100.....GOOD. VENTILATION INDICES NORMALLY DROP TO POOR AFTER SUNSET END/ $$$$^^