FPCN39 CWLW 231400 SMOKE CONTROL FORECAST FOR BC AND YUKON ISSUED BY THE MOUNTAIN WEATHER SERVICE OFFICE OF ENVIRONMENT CANADA AT 7:00 AM PDT TUESDAY 23 MAY 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 1660 9 100/GOOD 2224 7 100/GOOD 2158 17 KAMLOOPS 100/GOOD 2062 22 100/GOOD 2473 11 100/GOOD 2846 22 OKANAGAN 100/GOOD 1982 18 100/GOOD 2444 12 100/GOOD 2836 21 CASTLEGAR 100/GOOD 1641 16 100/GOOD 2481 14 100/GOOD 2752 16 CRANBROOK 100/GOOD 1950 18 100/GOOD 3068 18 100/GOOD 3316 20 REVELSTOKE 100/GOOD 1650 16 100/GOOD 2424 15 100/GOOD 2790 18 FORECAST UPPER WINDS FOR TUESDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m PENTICTON W 11 W 31 W 61 CRANBROOK W 19 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 100/GOOD 2139 25 100/GOOD 2852 11 100/GOOD 2889 16 100 MILE 100/GOOD 2642 29 100/GOOD 2877 14 100/GOOD 3723 22 WILLIAMS LK 100/GOOD 2649 22 100/GOOD 3089 9 100/GOOD 3699 21 PUNTZI MNT 100/GOOD 2249 21 100/GOOD 3036 12 100/GOOD 3470 25 PR. GEORGE 100/GOOD 1943 30 100/GOOD 2853 17 100/GOOD 2799 19 BURNS LAKE 100/GOOD 2160 23 100/GOOD 2850 15 100/GOOD 3021 20 SMITHERS 100/GOOD 1936 18 100/GOOD 2516 13 100/GOOD 2619 19 FORECAST UPPER WINDS FOR TUESDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m PR. GEORGE W 54 W 56 SMITHERS SW 50 SW 63 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 100/GOOD 1545 39 100/GOOD 2738 29 100/GOOD 3150 17 FT STJOHN 100/GOOD 1660 36 100/GOOD 3783 29 100/GOOD 3838 15 WHITEHORSE 100/GOOD 1845 23 100/GOOD 2682 23 100/GOOD 3139 10 DAWSON 100/GOOD 1319 21 100/GOOD 1837 17 93/GOOD 1302 8 WATSON LAKE 100/GOOD 1471 29 100/GOOD 3218 24 100/GOOD 3338 17 FORECAST UPPER WINDS FOR TUESDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m DEASE LAKE SW 31 SW 57 WATSON LAKE SW 22 S 17 WHITEHORSE S 19 SE 26 MAYO E 28 SE 20 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 72/GOOD 470 30 90/GOOD 516 11 72/GOOD 616 10 FRASER VLY 64/GOOD 762 10 67/GOOD 1152 9 100/GOOD 1322 15 SRN VRISL 63/GOOD 388 23 60/GOOD 578 3 43/FAIR 469 8 CNTRL VRISL 100/GOOD 634 27 90/GOOD 915 5 100/GOOD 1246 4 NRN VRISL 100/GOOD 960 15 91/GOOD 922 21 100/GOOD 1202 27 TERRACE 100/GOOD 1449 8 100/GOOD 1893 8 100/GOOD 1773 10 STEWART 100/GOOD 957 11 74/GOOD 768 9 85/GOOD 909 7 FORECAST UPPER WINDS FOR TUESDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m VANCOUVER W 22 W 28 W 52 SANDSPIT W 53 W 50 W 52 PORT HARDY W 29 SW 35 W 52 VENTILATION GUIDELINES: 0-33.....POOR 34-54.....FAIR 55-100.....GOOD. VENTILATION INDICES NORMALLY DROP TO POOR AFTER SUNSET END/ $$$$^^