FPCN39 CWLW 171400 SMOKE CONTROL FORECAST FOR COASTAL BC AND THE INTERIOR INCLUDING THE NORTHEAST ISSUED BY THE MOUNTAIN WEATHER SERVICE OFFICE OF ENVIRONMENT CANADA AT 7:00 AM PDT SUNDAY 17 OCTOBER 1999 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 31/POOR 460 15 83/GOOD 1269 5 80/GOOD 1004 10 KAMLOOPS 33/POOR 546 20 100/GOOD 1469 16 63/GOOD 1232 8 OKANAGAN 56/GOOD 779 17 100/GOOD 1353 12 57/GOOD 1296 10 CASTLEGAR 47/FAIR 896 9 79/GOOD 1303 12 36/FAIR 1695 3 CRANBROOK 63/GOOD 1338 14 100/GOOD 1833 18 49/FAIR 2087 3 REVELSTOKE 41/FAIR 750 14 100/GOOD 1274 13 33/POOR 1316 6 FORCAST UPPER WINDS FOR SUNDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m PENTICTON 0 0 W 17 NW 33 CRANBROOK W 15 NW 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 18/POOR 620 20 100/GOOD 1543 13 28/POOR 1235 4 100 MILE 25/POOR 1060 25 100/GOOD 1891 16 57/GOOD 1763 9 WILLIAMS LK 19/POOR 1020 25 100/GOOD 2026 11 36/FAIR 1748 3 PUNTZI MNT 48/FAIR 1154 26 100/GOOD 1754 13 22/POOR 1461 3 PR. GEORGE 17/POOR 750 26 81/GOOD 1238 17 52/FAIR 1400 9 BURNS LAKE 25/POOR 837 25 55/GOOD 1150 12 24/POOR 1061 5 SMITHERS 35/FAIR 714 24 58/GOOD 1150 13 20/POOR 788 6 FORCAST UPPER WINDS FOR SUNDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m PR. GEORGE W 61 W 72 SMITHERS SW 74 SW100 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 14/POOR 418 33 31/POOR 679 8 12/POOR 394 20 FT STJOHN 62/GOOD 940 38 100/GOOD 2068 23 19/POOR 772 25 WHITEHORSE 15/POOR 745 24 71/GOOD 1005 30 32/POOR 808 48 DAWSON 22/POOR 479 23 13/POOR 390 14 12/POOR 377 29 WATSON LAKE 18/POOR 771 25 100/GOOD 1213 23 13/POOR 710 25 FORCAST UPPER WINDS FOR SUNDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m DEASE LAKE SW 57 SW102 WATSON LAKE SW 65 W 93 WHITEHORSE SW 44 SW 72 MAYO W 26 W 56 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 19/POOR 196 4 23/POOR 271 19 40/FAIR 245 16 FRASER VLY 13/POOR 117 2 28/POOR 617 7 74/GOOD 612 23 SRN VRISL 22/POOR 191 10 22/POOR 198 9 26/POOR 149 20 CNTRL VRISL 23/POOR 247 6 46/FAIR 468 17 43/FAIR 398 13 NRN VRISL 16/POOR 88 15 13/POOR 115 4 13/POOR 68 5 TERRACE 28/POOR 413 16 32/POOR 572 7 15/POOR 460 1 STEWART 13/POOR 48 20 18/POOR 88 13 17/POOR 163 10 FORCAST UPPER WINDS FOR SUNDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m VANCOUVER 0 0 W 17 W 41 SANDSPIT W 50 W 67 W 78 PORT HARDY S 55 SW 54 W 57 VENTILATION GUIDELINES: 0-33.....POOR 34-54.....FAIR 55-100.....GOOD. VENTILATION INDICES NORMALLY DROP TO POOR AFTER SUNSET END/MWSO $$$$^^