FPCN39 CWLW 171500 SMOKE CONTROL FORECAST FOR BC AND YUKON ISSUED BY THE MOUNTAIN WEATHER SERVICE OFFICE OF ENVIRONMENT CANADA AT 7:00 AM PST THURSDAY 17 FEBRUARY 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 12/POOR 254 7 59/GOOD 1000 6 73/GOOD 1071 5 KAMLOOPS 12/POOR 369 3 54/FAIR 1360 6 66/GOOD 1088 10 OKANAGAN 20/POOR 556 11 50/FAIR 1236 5 64/GOOD 1199 9 CASTLEGAR 22/POOR 623 18 53/FAIR 1349 5 83/GOOD 1384 9 CRANBROOK 18/POOR 1034 20 70/GOOD 1805 8 100/GOOD 1947 8 REVELSTOKE 14/POOR 498 14 51/FAIR 1346 3 69/GOOD 1290 7 FORECAST UPPER WINDS FOR THURSDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m PENTICTON 0 0 N 19 NW 24 CRANBROOK N 9 NW 22 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 600 15 51/FAIR 1417 2 33/POOR 1176 3 100 MILE 12/POOR 960 4 52/FAIR 1923 2 57/GOOD 1598 10 WILLIAMS LK 12/POOR 968 8 49/FAIR 1920 4 37/FAIR 1556 4 PUNTZI MNT 12/POOR 938 9 30/POOR 1526 7 32/POOR 1665 2 PR. GEORGE 20/POOR 819 19 41/FAIR 1284 7 35/FAIR 1188 6 BURNS LAKE 13/POOR 745 17 28/POOR 1298 4 26/POOR 1157 4 SMITHERS 13/POOR 556 11 21/POOR 1009 2 31/POOR 948 6 FORECAST UPPER WINDS FOR THURSDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m PR. GEORGE NW 30 NW 43 SMITHERS N 17 NW 24 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 17/POOR 438 34 40/FAIR 300 8 48/FAIR 717 13 FT STJOHN 18/POOR 765 26 41/FAIR 958 15 37/FAIR 980 23 WHITEHORSE 17/POOR 767 23 23/POOR 815 22 19/POOR 773 24 DAWSON 14/POOR 413 10 17/POOR 458 16 15/POOR 423 21 WATSON LAKE 13/POOR 721 17 21/POOR 819 14 61/GOOD 992 21 FORECAST UPPER WINDS FOR THURSDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m DEASE LAKE W 28 W 41 WATSON LAKE W 44 NW 39 WHITEHORSE SW 43 W 35 MAYO W 33 W 43 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 45/FAIR 265 30 36/FAIR 415 10 24/POOR 325 9 FRASER VLY 32/POOR 225 18 44/FAIR 714 5 31/POOR 626 4 SRN VRISL 35/FAIR 297 15 32/POOR 393 9 24/POOR 340 7 CNTRL VRISL 25/POOR 190 16 28/POOR 466 7 26/POOR 486 5 NRN VRISL 14/POOR 85 9 28/POOR 544 5 18/POOR 420 3 TERRACE 17/POOR 302 16 20/POOR 717 2 37/FAIR 763 4 STEWART 13/POOR 45 15 17/POOR 170 8 21/POOR 188 9 FORECAST UPPER WINDS FOR THURSDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m VANCOUVER NE 31 NE 9 NW 20 SANDSPIT E 9. 0 0 NW 19 PORT HARDY N 16 NW 9 NW 17 VENTILATION GUIDELINES: 0-33.....POOR 34-54.....FAIR 55-100.....GOOD. VENTILATION INDICES NORMALLY DROP TO POOR AFTER SUNSET END/ $$$$^^