FPCN39 CWLW 201330 SMOKE CONTROL FORECAST FOR BC AND YUKON ISSUED BY THE MOUNTAIN WEATHER CENTRE OF ENVIRONMENT CANADA AT 7:00 AM PDT FRIDAY 20 OCTOBER 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 92/GOOD 633 24 100/GOOD 677 21 100/GOOD 827 20 KAMLOOPS 100/GOOD 880 30 100/GOOD 1135 32 100/GOOD 1601 23 OKANAGAN 100/GOOD 906 36 100/GOOD 1149 26 100/GOOD 2024 18 CASTLEGAR 25/POOR 644 20 39/FAIR 742 18 100/GOOD 1926 13 CRANBROOK 33/POOR 1155 16 48/FAIR 1184 18 100/GOOD 2552 22 REVELSTOKE 57/GOOD 762 20 48/FAIR 761 18 100/GOOD 1263 16 FORECAST UPPER WINDS FOR FRIDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m PENTICTON 0 0 SW 19 W 33 CRANBROOK W 19 W 52 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 1315 43 52/FAIR 775 27 100/GOOD 1265 17 100 MILE 100/GOOD 1936 43 100/GOOD 1680 38 100/GOOD 1971 17 WILLIAMS LK 100/GOOD 1855 40 56/GOOD 1187 30 100/GOOD 1733 17 PUNTZI MNT 100/GOOD 1752 29 89/GOOD 1251 34 58/GOOD 1237 21 PR. GEORGE 100/GOOD 1186 39 32/POOR 819 27 100/GOOD 1480 19 BURNS LAKE 40/FAIR 926 26 100/GOOD 1570 30 68/GOOD 1175 16 SMITHERS 35/FAIR 735 19 100/GOOD 1231 29 52/FAIR 947 14 FORECAST UPPER WINDS FOR FRIDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m PR. GEORGE W 28 W 41 SMITHERS S 33 S 50 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 19/POOR 449 33 45/FAIR 394 17 57/GOOD 660 24 FT STJOHN 82/GOOD 1035 35 90/GOOD 1100 12 100/GOOD 2634 34 WHITEHORSE 34/FAIR 899 21 48/FAIR 884 15 87/GOOD 1352 16 DAWSON 16/POOR 443 13 45/FAIR 900 13 28/POOR 605 8 WATSON LAKE 60/GOOD 996 36 75/GOOD 1200 27 100/GOOD 1623 11 FORECAST UPPER WINDS FOR FRIDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m DEASE LAKE S 17 S 19 WATSON LAKE S 17 SW 19 WHITEHORSE SW 24 SW 30 MAYO SE 26 S 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 71/GOOD 215 61 95/GOOD 318 38 42/FAIR 244 33 FRASER VLY 45/FAIR 291 41 79/GOOD 359 25 56/GOOD 467 22 SRN VRISL 61/GOOD 263 42 85/GOOD 850 27 36/FAIR 195 20 CNTRL VRISL 93/GOOD 477 34 100/GOOD 868 27 98/GOOD 641 22 NRN VRISL 96/GOOD 491 39 100/GOOD 900 28 14/POOR 40 38 TERRACE 35/FAIR 440 9 100/GOOD 491 19 13/POOR 249 18 STEWART 46/FAIR 268 17 100/GOOD 900 25 20/POOR 167 12 FORECAST UPPER WINDS FOR FRIDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m VANCOUVER S 18 SW 22 SW 39 SANDSPIT SE 98 S 93 S 76 PORT HARDY S 66 S 76 SW 74 VENTILATION GUIDELINES: 0-33.....POOR 34-54.....FAIR 55-100.....GOOD. VENTILATION INDICES NORMALLY DROP TO POOR AFTER SUNSET END/MWSO