FPCN39 CWLW 181500 SMOKE CONTROL FORECAST FOR BC AND YUKON ISSUED BY THE MOUNTAIN WEATHER SERVICE OFFICE OF ENVIRONMENT CANADA AT 7:00 AM PST SATURDAY 18 MARCH 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 40/FAIR 462 20 90/GOOD 688 19 89/GOOD 1306 11 KAMLOOPS 23/POOR 427 20 89/GOOD 781 22 75/GOOD 2231 9 OKANAGAN 36/FAIR 638 21 87/GOOD 809 27 80/GOOD 2501 12 CASTLEGAR 31/POOR 769 12 53/FAIR 844 18 50/FAIR 2451 14 CRANBROOK 35/FAIR 1158 19 90/GOOD 1590 20 100/GOOD 2813 24 REVELSTOKE 37/FAIR 799 13 48/FAIR 791 16 53/FAIR 2086 14 FORECAST UPPER WINDS FOR SATURDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m PENTICTON W 11 W 33 NW 50 CRANBROOK W 20 NW 59 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 22/POOR 647 24 59/GOOD 743 14 75/GOOD 1897 15 100 MILE 27/POOR 1068 27 77/GOOD 1362 21 80/GOOD 2559 10 WILLIAMS LK 20/POOR 1028 23 62/GOOD 1126 10 70/GOOD 2402 10 PUNTZI MNT 25/POOR 1049 17 100/GOOD 1894 21 100/GOOD 2166 12 PR. GEORGE 26/POOR 822 25 68/GOOD 875 19 75/GOOD 2147 17 BURNS LAKE 30/POOR 1100 22 65/GOOD 1767 25 60/GOOD 2003 16 SMITHERS 30/POOR 932 16 60/GOOD 1145 21 50/FAIR 1717 15 FORECAST UPPER WINDS FOR SATURDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m PR. GEORGE W 48 W 48 SMITHERS SW 56 SW 74 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 14/POOR 426 15 35/FAIR 907 7 32/POOR 995 4 FT STJOHN 16/POOR 753 23 95/GOOD 1469 12 78/GOOD 1282 14 WHITEHORSE 18/POOR 864 13 57/GOOD 1747 8 92/GOOD 1428 19 DAWSON 14/POOR 424 15 34/FAIR 678 12 27/POOR 687 8 WATSON LAKE 13/POOR 721 16 41/FAIR 1445 6 65/GOOD 1892 11 FORECAST UPPER WINDS FOR SATURDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m DEASE LAKE SW 33 SW 67 WATSON LAKE W 48 W 39 WHITEHORSE SW 30 SW 35 MAYO SW 19 SW 17 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 45/FAIR 187 33 64/GOOD 36 27 39/FAIR 473 7 FRASER VLY 45/FAIR 267 24 68/GOOD 145 28 71/GOOD 831 11 SRN VRISL 38/FAIR 183 26 54/FAIR 46 24 86/GOOD 646 15 CNTRL VRISL 53/FAIR 352 22 45/FAIR 309 21 80/GOOD 1040 5 NRN VRISL 100/GOOD 468 35 100/GOOD 744 24 85/GOOD 751 23 TERRACE 45/FAIR 499 17 85/GOOD 892 15 82/GOOD 1475 8 STEWART 24/POOR 169 18 38/FAIR 216 16 35/FAIR 363 8 FORECAST UPPER WINDS FOR SATURDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m VANCOUVER W 27 W 30 W 44 SANDSPIT S 77 SW 83 SW 78 PORT HARDY S 53 SW 63 SW 72 VENTILATION GUIDELINES: 0-33.....POOR 34-54.....FAIR 55-100.....GOOD. VENTILATION INDICES NORMALLY DROP TO POOR AFTER SUNSET END/MTNWC $$$$^^