FPCN39 CWLW 251400 SMOKE CONTROL FORECAST FOR BC AND YUKON ISSUED BY THE MOUNTAIN WEATHER CENTRE OF ENVIRONMENT CANADA AT 7:00 AM PDT TUESDAY 25 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 43/FAIR 550 16 100/GOOD 1913 14 100/GOOD 1627 15 KAMLOOPS 36/FAIR 581 19 100/GOOD 2332 16 100/GOOD 2116 16 OKANAGAN 28/POOR 667 14 100/GOOD 2793 13 100/GOOD 2508 14 CASTLEGAR 15/POOR 570 10 100/GOOD 2939 12 100/GOOD 2383 14 CRANBROOK 16/POOR 1053 11 100/GOOD 3167 13 100/GOOD 3017 18 REVELSTOKE 24/POOR 689 11 100/GOOD 2189 7 100/GOOD 2197 10 FORECAST UPPER WINDS FOR TUESDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m PENTICTON 0 0 NW 22 W 17 CRANBROOK NW 13 NW 35 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 24/POOR 719 10 100/GOOD 2537 18 100/GOOD 2271 17 100 MILE 27/POOR 1135 16 100/GOOD 2905 18 100/GOOD 2701 22 WILLIAMS LK 25/POOR 1147 11 100/GOOD 3188 18 100/GOOD 2711 17 PUNTZI MNT 18/POOR 1045 13 100/GOOD 2458 14 100/GOOD 2473 20 PR. GEORGE 18/POOR 923 2 100/GOOD 1865 5 100/GOOD 2534 15 BURNS LAKE 46/FAIR 1155 9 100/GOOD 1664 14 73/GOOD 1448 8 SMITHERS 45/FAIR 889 13 44/FAIR 1033 8 91/GOOD 1333 12 FORECAST UPPER WINDS FOR TUESDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m PR. GEORGE NW 24 W 19 SMITHERS SW 30 S 28 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 26/POOR 533 20 100/GOOD 2267 11 100/GOOD 2555 11 FT STJOHN 34/FAIR 905 20 100/GOOD 2858 19 100/GOOD 3189 17 WHITEHORSE 28/POOR 1168 1 93/GOOD 2365 9 90/GOOD 1722 11 DAWSON 26/POOR 558 14 71/FAIR 2568 8 44/FAIR 1498 6 WATSON LAKE 30/POOR 975 11 91/GOOD 1883 8 100/GOOD 2165 17 FORECAST UPPER WINDS FOR TUESDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m DEASE LAKE S 31 S 44 WATSON LAKE SW 31 SW 43 WHITEHORSE SW 13 0 0 MAYO W 22 SW 26 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 18/POOR 177 3 37/FAIR 441 8 48/FAIR 582 8 FRASER VLY 18/POOR 183 13 90/GOOD 1068 11 84/GOOD 1068 9 SRN VRISL 29/POOR 216 20 45/FAIR 391 11 30/POOR 297 7 CNTRL VRISL 22/POOR 172 15 75/GOOD 1063 4 67/GOOD 735 9 NRN VRISL 28/POOR 220 16 42/FAIR 386 13 15/POOR 47 29 TERRACE 53/FAIR 691 12 95/GOOD 1033 13 61/GOOD 673 13 STEWART 43/FAIR 398 13 55/GOOD 642 8 28/POOR 241 12 FORECAST UPPER WINDS FOR TUESDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m VANCOUVER 0 0 0 0 W 11 SANDSPIT S 66 S 65 S 57 PORT HARDY S 22 S 26 S 31 VENTILATION GUIDELINES: 0-33.....POOR 34-54.....FAIR 55-100.....GOOD. VENTILATION INDICES NORMALLY DROP TO POOR AFTER SUNSET END/ $$$$^^