FPCN39 CWLW 231500 SMOKE CONTROL FORECAST FOR BC AND YUKON ISSUED BY THE MOUNTAIN WEATHER SERVICE OFFICE OF ENVIRONMENT CANADA AT 7:00 AM PST THURSDAY 23 MARCH 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 80/GOOD 735 19 100/GOOD 1599 15 100/GOOD 1252 12 KAMLOOPS 72/GOOD 691 27 100/GOOD 1803 17 100/GOOD 1717 18 OKANAGAN 100/GOOD 973 23 100/GOOD 1717 19 100/GOOD 1813 18 CASTLEGAR 100/GOOD 1238 15 100/GOOD 1946 15 100/GOOD 2094 9 CRANBROOK 100/GOOD 1603 20 100/GOOD 2349 24 100/GOOD 2345 14 REVELSTOKE 84/GOOD 993 14 100/GOOD 1345 14 100/GOOD 1604 9 FORECAST UPPER WINDS FOR THURSDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m PENTICTON S 11 S 28 SW 52 CRANBROOK SW 11 W 44 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 81/GOOD 1040 17 100/GOOD 1675 11 100/GOOD 1887 19 100 MILE 100/GOOD 1605 25 98/GOOD 1981 11 100/GOOD 2269 23 WILLIAMS LK 63/GOOD 1294 21 95/GOOD 1868 9 100/GOOD 2255 18 PUNTZI MNT 100/GOOD 1630 26 100/GOOD 2494 17 100/GOOD 2121 12 PR. GEORGE 29/POOR 854 23 100/GOOD 2071 17 100/GOOD 1815 10 BURNS LAKE 24/POOR 837 23 100/GOOD 1980 16 99/GOOD 1296 20 SMITHERS 80/GOOD 1080 17 100/GOOD 1705 12 70/GOOD 979 18 FORECAST UPPER WINDS FOR THURSDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m PR. GEORGE SE 19 S 35 SMITHERS E 30 SE 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 20/POOR 476 15 100/GOOD 1249 13 84/GOOD 1048 15 FT STJOHN 26/POOR 847 18 100/GOOD 2281 26 100/GOOD 2082 16 WHITEHORSE 35/FAIR 908 18 100/GOOD 1701 19 77/GOOD 1233 18 DAWSON 15/POOR 422 13 45/FAIR 738 17 55/GOOD 694 22 WATSON LAKE 19/POOR 781 18 100/GOOD 2770 15 100/GOOD 1499 21 FORECAST UPPER WINDS FOR THURSDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m DEASE LAKE SW 19 SW 24 WATSON LAKE W 33 W 31 WHITEHORSE S 31 SW 43 MAYO W 33 W 39 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 100/GOOD 783 34 86/GOOD 865 11 91/GOOD 804 6 FRASER VLY 97/GOOD 671 21 100/GOOD 1447 15 100/GOOD 1542 10 SRN VRISL 100/GOOD 724 28 89/GOOD 948 17 73/GOOD 569 8 CNTRL VRISL 100/GOOD 836 23 100/GOOD 1155 8 69/GOOD 673 7 NRN VRISL 43/FAIR 400 14 85/GOOD 848 15 84/GOOD 434 28 TERRACE 53/FAIR 760 8 96/GOOD 981 13 63/GOOD 414 19 STEWART 37/FAIR 369 12 78/GOOD 809 11 57/GOOD 77 20 FORECAST UPPER WINDS FOR THURSDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m VANCOUVER S 31 S 46 SW 63 SANDSPIT SE 12 S 11 W 11 PORT HARDY S 35 S 48 SW 50 VENTILATION GUIDELINES: 0-33.....POOR 34-54.....FAIR 55-100.....GOOD. VENTILATION INDICES NORMALLY DROP TO POOR AFTER SUNSET END/GF $$$$^^