FPCN39 CWLW 281400 SMOKE CONTROL FORECAST FOR BC AND YUKON ISSUED BY THE MOUNTAIN WEATHER CENTRE OF ENVIRONMENT CANADA AT 7:00 AM PDT FRIDAY 28 JULY 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 83/GOOD 924 18 100/GOOD 1228 13 100/GOOD 1620 8 KAMLOOPS 79/GOOD 937 19 91/GOOD 787 15 100/GOOD 1955 9 OKANAGAN 89/GOOD 996 17 100/GOOD 2173 11 70/GOOD 1771 3 CASTLEGAR 17/POOR 608 10 100/GOOD 2514 19 100/GOOD 2029 6 CRANBROOK 24/POOR 1133 9 100/GOOD 3223 21 100/GOOD 2867 15 REVELSTOKE 89/GOOD 1140 11 100/GOOD 1877 11 100/GOOD 2029 10 FORECAST UPPER WINDS FOR FRIDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m PENTICTON 0 0 SW 19 SW 43 CRANBROOK SW 15 SW 44 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 62/GOOD 887 23 100/GOOD 2577 16 100/GOOD 2397 13 100 MILE 74/GOOD 1325 25 100/GOOD 2307 20 100/GOOD 2671 7 WILLIAMS LK 34/FAIR 1131 24 100/GOOD 2667 15 100/GOOD 2634 7 PUNTZI MNT 100/GOOD 2197 19 100/GOOD 3051 22 100/GOOD 2810 9 PR. GEORGE 66/GOOD 1016 28 100/GOOD 2613 16 100/GOOD 2613 17 BURNS LAKE 100/GOOD 1627 24 100/GOOD 2555 20 100/GOOD 2351 16 SMITHERS 80/GOOD 1068 16 100/GOOD 1561 15 100/GOOD 1904 14 FORECAST UPPER WINDS FOR FRIDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m PR. GEORGE S 35 S 39 SMITHERS S 33 S 39 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 40/FAIR 607 20 100/GOOD 1933 21 100/GOOD 2215 27 FT STJOHN 100/GOOD 1316 28 100/GOOD 3152 34 100/GOOD 2646 42 WHITEHORSE 22/POOR 864 12 100/GOOD 2193 20 100/GOOD 1991 15 DAWSON 44/FAIR 884 11 64/GOOD 1970 4 100/GOOD 2274 9 WATSON LAKE 54/FAIR 1120 12 100/GOOD 2257 27 49/FAIR 864 33 FORECAST UPPER WINDS FOR FRIDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m DEASE LAKE SE 20 S 35 WATSON LAKE SE 24 SE 30 WHITEHORSE SE 26 SE 33 MAYO SE 11 SE 13 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 31/POOR 298 7 36/FAIR 477 13 35/FAIR 362 15 FRASER VLY 29/POOR 446 4 42/FAIR 778 4 42/FAIR 873 8 SRN VRISL 25/POOR 285 7 46/FAIR 235 6 40/FAIR 307 9 CNTRL VRISL 41/FAIR 374 14 60/GOOD 719 8 49/FAIR 633 8 NRN VRISL 67/GOOD 469 19 100/GOOD 888 15 37/FAIR 604 5 TERRACE 82/GOOD 754 14 87/GOOD 830 14 100/GOOD 1467 8 STEWART 45/FAIR 380 13 35/FAIR 305 12 60/GOOD 666 8 FORECAST UPPER WINDS FOR FRIDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m VANCOUVER S 40 SW 46 SW 52 SANDSPIT S 18 S 31 S 48 PORT HARDY S 48 S 61 S 63 VENTILATION GUIDELINES: 0-33.....POOR 34-54.....FAIR 55-100.....GOOD. VENTILATION INDICES NORMALLY DROP TO POOR AFTER SUNSET END/MTNWC $$$$^^