FPCN39 CWLW 301400 SMOKE CONTROL FORECAST FOR BC AND YUKON ISSUED BY THE MOUNTAIN WEATHER SERVICE OFFICE OF ENVIRONMENT CANADA AT 7:00 AM PDT SUNDAY 30 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 988 18 100/GOOD 1715 23 100/GOOD 1789 9 KAMLOOPS 100/GOOD 1433 18 100/GOOD 2186 28 100/GOOD 2234 11 OKANAGAN 100/GOOD 1220 23 100/GOOD 2060 26 100/GOOD 2108 9 CASTLEGAR 100/GOOD 1417 11 100/GOOD 1918 17 100/GOOD 2212 12 CRANBROOK 100/GOOD 1664 10 100/GOOD 2270 18 100/GOOD 2468 17 REVELSTOKE 100/GOOD 1527 14 100/GOOD 1914 17 100/GOOD 1720 8 FORECAST UPPER WINDS FOR SUNDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m PENTICTON 0 0 W 20 W 35 CRANBROOK W 15 W 37 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 1555 26 100/GOOD 2174 31 100/GOOD 3378 6 100 MILE 100/GOOD 2003 26 100/GOOD 2373 33 100/GOOD 3025 6 WILLIAMS LK 100/GOOD 2000 25 100/GOOD 2102 30 100/GOOD 3475 12 PUNTZI MNT 100/GOOD 1895 18 100/GOOD 2559 31 100/GOOD 3036 14 PR. GEORGE 100/GOOD 1594 27 100/GOOD 1689 23 100/GOOD 3160 13 BURNS LAKE 100/GOOD 1275 26 100/GOOD 1287 24 100/GOOD 2580 21 SMITHERS 100/GOOD 982 26 85/GOOD 991 20 100/GOOD 2192 15 FORECAST UPPER WINDS FOR SUNDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m PR. GEORGE W 44 W 44 SMITHERS SW 43 SW 48 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 30/POOR 547 21 100/GOOD 2445 23 100/GOOD 3541 31 FT STJOHN 26/POOR 822 27 100/GOOD 2871 25 100/GOOD 3838 35 WHITEHORSE 100/GOOD 1423 27 100/GOOD 2092 23 100/GOOD 2163 28 DAWSON 15/POOR 416 16 100/GOOD 1832 13 100/GOOD 2407 22 WATSON LAKE 99/GOOD 1240 22 100/GOOD 2148 18 100/GOOD 3486 28 FORECAST UPPER WINDS FOR SUNDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m DEASE LAKE SW 19 SW 30 WATSON LAKE W 37 W 37 WHITEHORSE SW 35 SW 48 MAYO SW 24 W 24 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 17/POOR 58 26 45/FAIR 237 24 37/FAIR 714 7 FRASER VLY 18/POOR 134 22 100/GOOD 849 19 53/FAIR 1226 8 SRN VRISL 16/POOR 95 13 14/POOR 81 21 21/POOR 460 1 CNTRL VRISL 16/POOR 98 18 45/FAIR 343 21 32/POOR 1029 4 NRN VRISL 40/FAIR 173 40 16/POOR 60 23 100/GOOD 1147 14 TERRACE 19/POOR 305 22 39/FAIR 485 16 100/GOOD 1224 15 STEWART 19/POOR 75 25 16/POOR 68 16 55/GOOD 356 14 FORECAST UPPER WINDS FOR SUNDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m VANCOUVER SW 22 SW 24 SW 24 SANDSPIT S 48 S 50 S 46 PORT HARDY S 38 S 46 SW 43 VENTILATION GUIDELINES: 0-33.....POOR 34-54.....FAIR 55-100.....GOOD. VENTILATION INDICES NORMALLY DROP TO POOR AFTER SUNSET END/ $$$$^^