FPCN39 CWLW 311500 SMOKE CONTROL FORECAST FOR BC AND YUKON ISSUED BY THE MOUNTAIN WEATHER SERVICE OFFICE OF ENVIRONMENT CANADA AT 7:00 AM PST FRIDAY 31 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 13/POOR 282 7 91/GOOD 1073 8 100/GOOD 1345 24 KAMLOOPS 13/POOR 419 3 100/GOOD 1644 13 100/GOOD 1788 30 OKANAGAN 14/POOR 542 6 100/GOOD 1530 10 100/GOOD 1516 30 CASTLEGAR 31/POOR 855 14 100/GOOD 2071 12 100/GOOD 1421 20 CRANBROOK 33/POOR 1281 17 100/GOOD 2160 12 100/GOOD 1690 27 REVELSTOKE 19/POOR 559 15 100/GOOD 1494 8 83/GOOD 566 21 FORECAST UPPER WINDS FOR FRIDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m PENTICTON 0 0 N 11 NW 13 CRANBROOK 0 0 NW 13 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 14/POOR 608 3 41/FAIR 653 19 100/GOOD 1586 32 100 MILE 15/POOR 999 15 51/FAIR 1890 12 100/GOOD 2006 30 WILLIAMS LK 17/POOR 1026 14 48/FAIR 1376 12 100/GOOD 2047 29 PUNTZI MNT 29/POOR 1089 18 100/GOOD 1845 28 100/GOOD 1994 40 PR. GEORGE 16/POOR 762 12 44/FAIR 778 29 100/GOOD 2004 35 BURNS LAKE 79/GOOD 1131 21 100/GOOD 1735 38 100/GOOD 1463 32 SMITHERS 69/GOOD 884 21 100/GOOD 1459 38 100/GOOD 1360 29 FORECAST UPPER WINDS FOR FRIDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m PR. GEORGE SW 41 SW 39 SMITHERS SW 57 W 69 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 18/POOR 448 26 36/FAIR 610 20 100/GOOD 2174 39 FT STJOHN 21/POOR 818 26 100/GOOD 1307 28 100/GOOD 2676 42 WHITEHORSE 78/GOOD 1171 20 61/GOOD 1049 22 100/GOOD 1591 22 DAWSON 14/POOR 406 7 38/FAIR 922 5 65/GOOD 838 20 WATSON LAKE 33/POOR 1035 11 71/GOOD 1082 11 100/GOOD 2167 28 FORECAST UPPER WINDS FOR FRIDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m DEASE LAKE SW 33 SW 43 WATSON LAKE W 43 W 35 WHITEHORSE SW 41 SW 52 MAYO SW 41 SW 37 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 121 7 28/POOR 323 13 45/FAIR 311 8 FRASER VLY 16/POOR 147 6 48/FAIR 909 9 100/GOOD 772 17 SRN VRISL 17/POOR 142 10 21/POOR 284 3 40/FAIR 219 25 CNTRL VRISL 19/POOR 168 10 40/FAIR 619 6 82/GOOD 603 17 NRN VRISL 42/FAIR 319 17 50/FAIR 560 11 35/FAIR 161 20 TERRACE 83/GOOD 635 21 100/GOOD 709 27 100/GOOD 1382 13 STEWART 21/POOR 120 22 27/POOR 113 27 48/FAIR 282 14 FORECAST UPPER WINDS FOR FRIDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m VANCOUVER 0 0 SW 15 W 26 SANDSPIT SW 25 W 33 W 46 PORT HARDY S 44 SW 41 W 37 VENTILATION GUIDELINES: 0-33.....POOR 34-54.....FAIR 55-100.....GOOD. VENTILATION INDICES NORMALLY DROP TO POOR AFTER SUNSET END/ $$$$^^