FPCN39 CWLW 311500 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 PST SUNDAY 31 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 100/GOOD 1098 15 100/GOOD 1239 30 81/GOOD 1016 20 KAMLOOPS 100/GOOD 1617 50 100/GOOD 1658 52 100/GOOD 1227 27 OKANAGAN 100/GOOD 1683 22 100/GOOD 1683 25 100/GOOD 1297 29 CASTLEGAR 100/GOOD 2273 28 100/GOOD 1736 34 94/GOOD 1460 8 CRANBROOK 100/GOOD 2239 23 100/GOOD 1626 31 61/GOOD 1705 23 REVELSTOKE 20/POOR 591 14 100/GOOD 1991 28 83/GOOD 1269 21 FORCAST UPPER WINDS FOR SUNDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m PENTICTON 0 0 SW 30 SW 72 CRANBROOK SW 26 SW 80 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 1714 22 100/GOOD 1798 19 100/GOOD 1148 25 100 MILE 87/GOOD 1335 24 100/GOOD 1611 22 100/GOOD 1722 24 WILLIAMS LK 60/GOOD 1229 26 100/GOOD 2376 18 100/GOOD 1666 22 PUNTZI MNT 96/GOOD 1430 24 100/GOOD 2493 19 91/GOOD 1378 21 PR. GEORGE 35/FAIR 927 4 100/GOOD 1744 21 95/GOOD 1724 31 BURNS LAKE 24/POOR 868 8 100/GOOD 2229 29 97/GOOD 1762 32 SMITHERS 17/POOR 615 8 100/GOOD 1638 25 91/GOOD 1595 34 FORCAST UPPER WINDS FOR SUNDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m PR. GEORGE W 28 W 31 SMITHERS SW 30 W 43 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 47/FAIR 440 8 88/GOOD 853 24 100/GOOD 1411 38 FT STJOHN 93/GOOD 1884 22 100/GOOD 1513 28 100/GOOD 1575 39 WHITEHORSE 99/GOOD 1781 24 100/GOOD 1792 21 100/GOOD 1714 37 DAWSON 20/POOR 450 2 16/POOR 424 22 16/POOR 431 17 WATSON LAKE 20/POOR 768 4 100/GOOD 1717 38 100/GOOD 1717 44 FORCAST UPPER WINDS FOR SUNDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m DEASE LAKE SW 33 W 50 WATSON LAKE W 46 W 65 WHITEHORSE SW 35 SW 56 MAYO SW 20 W 30 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 644 45 100/GOOD 1720 36 97/GOOD 278 21 FRASER VLY 100/GOOD 621 26 100/GOOD 1037 19 96/GOOD 677 17 SRN VRISL 100/GOOD 556 30 100/GOOD 1409 18 96/GOOD 179 17 CNTRL VRISL 100/GOOD 527 32 100/GOOD 1011 20 95/GOOD 493 15 NRN VRISL 100/GOOD 334 20 100/GOOD 1534 28 100/GOOD 531 24 TERRACE 51/FAIR 618 13 90/GOOD 917 14 100/GOOD 323 33 STEWART 33/POOR 277 15 91/GOOD 1209 21 100/GOOD 60 36 FORCAST UPPER WINDS FOR SUNDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m VANCOUVER W 9. SW 28 W 46 SANDSPIT W 25 W 33 W 37 PORT HARDY NW 16 W 20 W 31 VENTILATION GUIDELINES: 0-33.....POOR 34-54.....FAIR 55-100.....GOOD. VENTILATION INDICES NORMALLY DROP TO POOR AFTER SUNSET END/ $$$$^^