FPCN39 CWLW 251400 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 MONDAY 25 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 56/GOOD 498 23 100/GOOD 658 27 100/GOOD 1670 8 KAMLOOPS 41/FAIR 563 25 100/GOOD 1228 29 100/GOOD 2198 15 OKANAGAN 40/FAIR 610 31 100/GOOD 1076 25 100/GOOD 1760 13 CASTLEGAR 19/POOR 591 22 68/GOOD 989 17 100/GOOD 1867 9 CRANBROOK 17/POOR 1049 12 83/GOOD 1457 21 100/GOOD 2423 13 REVELSTOKE 16/POOR 513 22 33/POOR 689 15 90/GOOD 1363 10 FORCAST UPPER WINDS FOR MONDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m PENTICTON 0 0 W 9 W 22 CRANBROOK W 15 W 41 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 100/GOOD 1111 36 100/GOOD 1115 20 100/GOOD 1724 19 100 MILE 93/GOOD 1300 34 100/GOOD 1458 31 100/GOOD 2476 18 WILLIAMS LK 87/GOOD 1286 33 100/GOOD 1621 23 100/GOOD 2537 18 PUNTZI MNT 68/GOOD 1224 22 100/GOOD 2303 33 100/GOOD 2553 19 PR. GEORGE 21/POOR 766 33 100/GOOD 1760 29 100/GOOD 1952 22 BURNS LAKE 100/GOOD 1256 28 100/GOOD 1611 32 100/GOOD 1868 21 SMITHERS 100/GOOD 1057 29 100/GOOD 1473 24 100/GOOD 1519 16 FORCAST UPPER WINDS FOR MONDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m PR. GEORGE SW 33 W 46 SMITHERS SW 48 SW 70 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 447 19 25/POOR 492 28 100/GOOD 961 23 FT STJOHN 17/POOR 766 15 71/GOOD 1086 24 100/GOOD 2367 33 WHITEHORSE 77/GOOD 990 38 26/POOR 781 34 72/GOOD 1042 26 DAWSON 33/POOR 502 37 22/POOR 436 41 46/FAIR 537 36 WATSON LAKE 24/POOR 798 31 27/POOR 840 23 100/GOOD 1816 23 FORCAST UPPER WINDS FOR MONDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m DEASE LAKE SW 39 SW 59 WATSON LAKE W 46 W 63 WHITEHORSE S 31 S 50 MAYO SW 24 SW 44 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 246 24 100/GOOD 1279 29 44/FAIR 563 5 FRASER VLY 13/POOR 79 25 100/GOOD 1211 31 50/FAIR 835 5 SRN VRISL 27/POOR 160 18 100/GOOD 1103 27 26/POOR 521 6 CNTRL VRISL 40/FAIR 259 20 100/GOOD 1654 26 53/FAIR 984 4 NRN VRISL 100/GOOD 538 48 100/GOOD 1292 27 71/GOOD 549 15 TERRACE 34/FAIR 418 22 100/GOOD 1675 19 82/GOOD 795 17 STEWART 45/FAIR 273 30 100/GOOD 1159 20 37/FAIR 226 17 FORCAST UPPER WINDS FOR MONDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m VANCOUVER E 12 0 0 SW 13 SANDSPIT S 87 S 85 S 74 PORT HARDY S 48 S 54 S 37 VENTILATION GUIDELINES: 0-33.....POOR 34-54.....FAIR 55-100.....GOOD. VENTILATION INDICES NORMALLY DROP TO POOR AFTER SUNSET END/MWSO $$$$^^