FPCN39 CWLW 051400 SMOKE CONTROL FORECAST FOR BC AND YUKON ISSUED BY THE MOUNTAIN WEATHER SERVICE OFFICE OF ENVIRONMENT CANADA AT 7:00 AM PDT FRIDAY 5 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 92/GOOD 912 11 100/GOOD 1989 16 100/GOOD 2223 12 KAMLOOPS 75/GOOD 1074 8 100/GOOD 2799 23 100/GOOD 2743 18 OKANAGAN 94/GOOD 1149 14 100/GOOD 2967 21 100/GOOD 2393 16 CASTLEGAR 80/GOOD 1140 12 100/GOOD 1728 11 100/GOOD 2344 15 CRANBROOK 51/FAIR 1415 13 100/GOOD 2721 18 100/GOOD 3360 24 REVELSTOKE 58/GOOD 901 11 70/GOOD 1417 8 100/GOOD 1751 11 FORECAST UPPER WINDS FOR FRIDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m PENTICTON W 9. W 19 W 35 CRANBROOK W 15 W 35 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 61/GOOD 972 16 100/GOOD 3390 13 100/GOOD 3498 8 100 MILE 44/FAIR 1336 14 100/GOOD 3118 15 100/GOOD 3670 12 WILLIAMS LK 26/POOR 1129 14 100/GOOD 3101 14 100/GOOD 3988 13 PUNTZI MNT 42/FAIR 1324 15 100/GOOD 3682 21 100/GOOD 3832 18 PR. GEORGE 44/FAIR 989 19 100/GOOD 3200 9 100/GOOD 3249 7 BURNS LAKE 100/GOOD 1519 16 100/GOOD 2689 19 100/GOOD 3180 8 SMITHERS 89/GOOD 1163 16 100/GOOD 1625 18 100/GOOD 2598 7 FORECAST UPPER WINDS FOR FRIDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m PR. GEORGE W 37 W 37 SMITHERS SW 30 SW 46 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 1079 20 100/GOOD 3208 17 100/GOOD 2357 17 FT STJOHN 56/GOOD 1352 9 100/GOOD 2114 10 100/GOOD 3862 19 WHITEHORSE 100/GOOD 1466 20 72/GOOD 2112 7 100/GOOD 2898 14 DAWSON 76/GOOD 1007 17 100/GOOD 3156 8 100/GOOD 3328 10 WATSON LAKE 44/FAIR 1009 17 100/GOOD 2397 9 100/GOOD 3781 19 FORECAST UPPER WINDS FOR FRIDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m DEASE LAKE W 11 0 0 WATSON LAKE E 26 E 19 WHITEHORSE S 13 SE 22 MAYO SE 26 SE 17 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 66/GOOD 559 11 100/GOOD 1457 16 64/GOOD 801 7 FRASER VLY 72/GOOD 642 12 100/GOOD 1730 20 100/GOOD 1422 10 SRN VRISL 100/GOOD 763 17 100/GOOD 1304 21 57/GOOD 621 9 CNTRL VRISL 68/GOOD 530 18 100/GOOD 1453 16 100/GOOD 1341 8 NRN VRISL 65/GOOD 755 10 100/GOOD 1652 17 100/GOOD 1335 13 TERRACE 61/GOOD 1040 9 88/GOOD 1343 6 100/GOOD 1948 6 STEWART 15/POOR 98 7 90/GOOD 1343 8 90/GOOD 1343 6 FORECAST UPPER WINDS FOR FRIDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m VANCOUVER SW 22 SW 30 SW 33 SANDSPIT S 53 S 48 S 44 PORT HARDY S 35 S 43 SW 43 VENTILATION GUIDELINES: 0-33.....POOR 34-54.....FAIR 55-100.....GOOD. VENTILATION INDICES NORMALLY DROP TO POOR AFTER SUNSET END/RET $$$$^^