FPCN39 CWLW 121500 SMOKE CONTROL FORECAST FOR BC AND YUKON ISSUED BY THE MOUNTAIN WEATHER SERVICE OFFICE OF ENVIRONMENT CANADA AT 7:00 AM PST SUNDAY 12 DECEMBER 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 746 27 74/GOOD 508 22 87/GOOD 754 18 KAMLOOPS 42/FAIR 570 25 100/GOOD 983 29 100/GOOD 1032 20 OKANAGAN 23/POOR 528 31 34/FAIR 562 24 100/GOOD 1164 24 CASTLEGAR 17/POOR 580 22 23/POOR 617 22 68/GOOD 1122 15 CRANBROOK 14/POOR 996 18 41/FAIR 1171 25 98/GOOD 1566 20 REVELSTOKE 55/GOOD 822 15 32/POOR 635 20 44/FAIR 854 13 FORECAST UPPER WINDS FOR SUNDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m PENTICTON W 11 W 30 W 63 CRANBROOK W 22 W 63 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 92/GOOD 871 36 100/GOOD 1380 23 41/FAIR 894 17 100 MILE 69/GOOD 1204 37 100/GOOD 1675 24 46/FAIR 1391 20 WILLIAMS LK 62/GOOD 1189 35 100/GOOD 1430 28 38/FAIR 1270 16 PUNTZI MNT 29/POOR 1045 30 100/GOOD 1439 28 39/FAIR 1360 7 PR. GEORGE 71/GOOD 977 32 100/GOOD 1631 31 44/FAIR 1102 13 BURNS LAKE 88/GOOD 1084 33 100/GOOD 1615 31 44/FAIR 927 5 SMITHERS 35/FAIR 696 27 100/GOOD 1565 26 44/FAIR 609 8 FORECAST UPPER WINDS FOR SUNDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m PR. GEORGE W 39 W 57 SMITHERS SW 39 SW 54 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 12/POOR 410 3 40/FAIR 677 22 48/FAIR 667 16 FT STJOHN 12/POOR 712 15 36/FAIR 862 14 44/FAIR 991 17 WHITEHORSE 23/POOR 826 12 12/POOR 724 17 16/POOR 782 20 DAWSON 12/POOR 377 5 12/POOR 371 12 17/POOR 435 22 WATSON LAKE 31/POOR 827 6 27/POOR 840 21 49/FAIR 969 17 FORECAST UPPER WINDS FOR SUNDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m DEASE LAKE SW 28 SW 54 WATSON LAKE W 43 W 33 WHITEHORSE SW 26 SW 35 MAYO E 9 W 11 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 572 45 58/GOOD 148 32 83/GOOD 351 33 FRASER VLY 84/GOOD 466 35 58/GOOD 174 25 83/GOOD 168 20 SRN VRISL 100/GOOD 693 34 55/GOOD 185 31 100/GOOD 571 27 CNTRL VRISL 100/GOOD 799 32 54/GOOD 152 24 100/GOOD 717 26 NRN VRISL 100/GOOD 714 34 54/GOOD 238 30 100/GOOD 616 29 TERRACE 63/GOOD 615 16 60/GOOD 295 18 57/GOOD 774 10 STEWART 27/POOR 164 19 54/GOOD 144 21 40/FAIR 200 10 FORECAST UPPER WINDS FOR SUNDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m VANCOUVER W 33 W 48 W 61 SANDSPIT SW 31 SW 43 SW 50 PORT HARDY SW 24 SW 37 SW 56 VENTILATION GUIDELINES: 0-33.....POOR 34-54.....FAIR 55-100.....GOOD. VENTILATION INDICES NORMALLY DROP TO POOR AFTER SUNSET END/ $$$$^^