FPCN39 CWLW 071400 SMOKE CONTROL FORECAST FOR BC AND YUKON ISSUED BY THE MOUNTAIN WEATHER SERVICE OFFICE OF ENVIRONMENT CANADA AT 7:00 AM PDT FRIDAY 7 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 50/FAIR 642 15 100/GOOD 1098 10 62/GOOD 1040 6 KAMLOOPS 58/GOOD 832 17 100/GOOD 1499 16 47/FAIR 1494 5 OKANAGAN 77/GOOD 1431 12 100/GOOD 1605 14 67/GOOD 1702 5 CASTLEGAR 70/GOOD 1373 9 100/GOOD 1880 11 43/FAIR 1754 3 CRANBROOK 88/GOOD 1524 16 100/GOOD 2305 18 40/FAIR 1891 4 REVELSTOKE 100/GOOD 1947 8 100/GOOD 1575 10 40/FAIR 1439 2 FORECAST UPPER WINDS FOR FRIDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m PENTICTON W 12 W 28 W 54 CRANBROOK W 17 W 48 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 42/FAIR 966 10 100/GOOD 1756 17 65/GOOD 1656 5 100 MILE 67/GOOD 1706 13 100/GOOD 1905 19 49/FAIR 2239 1 WILLIAMS LK 53/FAIR 1402 16 100/GOOD 1714 17 51/FAIR 2204 2 PUNTZI MNT 89/GOOD 1424 17 100/GOOD 2212 26 51/FAIR 1984 5 PR. GEORGE 39/FAIR 966 17 71/GOOD 1045 18 84/GOOD 1959 7 BURNS LAKE 100/GOOD 1616 20 100/GOOD 1931 35 84/GOOD 2050 7 SMITHERS 100/GOOD 1421 18 100/GOOD 1411 27 47/FAIR 1464 4 FORECAST UPPER WINDS FOR FRIDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m PR. GEORGE W 41 W 31 SMITHERS W 33 W 30 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 57/GOOD 737 20 87/GOOD 961 19 100/GOOD 1710 11 FT STJOHN 37/FAIR 940 15 100/GOOD 1834 26 100/GOOD 2614 15 WHITEHORSE 34/FAIR 919 19 88/GOOD 1391 15 100/GOOD 1846 31 DAWSON 53/FAIR 619 27 43/FAIR 673 17 38/FAIR 802 2 WATSON LAKE 28/POOR 863 14 100/GOOD 1487 24 100/GOOD 1835 22 FORECAST UPPER WINDS FOR FRIDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m DEASE LAKE SW 17 SW 22 WATSON LAKE SE 19 SW 17 WHITEHORSE 0 0 SW 17 MAYO NE 28 NW 9 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 33/POOR 248 11 42/FAIR 435 3 25/POOR 158 13 FRASER VLY 32/POOR 429 11 48/FAIR 924 3 71/GOOD 775 11 SRN VRISL 16/POOR 182 4 47/FAIR 462 9 24/POOR 157 15 CNTRL VRISL 24/POOR 201 9 40/FAIR 648 9 34/FAIR 372 10 NRN VRISL 100/GOOD 477 27 100/GOOD 825 17 39/FAIR 368 16 TERRACE 100/GOOD 1100 19 100/GOOD 856 19 38/FAIR 1301 2 STEWART 100/GOOD 650 19 83/GOOD 383 24 21/POOR 430 1 FORECAST UPPER WINDS FOR FRIDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m VANCOUVER NW 27 NW 41 W 54 SANDSPIT W 31 W 39 W 48 PORT HARDY W 24 W 31 W 41 VENTILATION GUIDELINES: 0-33.....POOR 34-54.....FAIR 55-100.....GOOD. VENTILATION INDICES NORMALLY DROP TO POOR AFTER SUNSET END/MWC $$$$^^