FPCN39 CWLW 051400 SMOKE CONTROL FORECAST FOR BC AND YUKON ISSUED BY THE MOUNTAIN WEATHER SERVICE OFFICE OF ENVIRONMENT CANADA AT 7:00 AM PDT WEDNESDAY 5 APRIL 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 76/GOOD 733 15 100/GOOD 1544 19 100/GOOD 2752 13 KAMLOOPS 100/GOOD 983 19 100/GOOD 2031 27 100/GOOD 2201 17 OKANAGAN 100/GOOD 1228 15 100/GOOD 1975 24 100/GOOD 2542 18 CASTLEGAR 100/GOOD 1435 13 100/GOOD 1820 16 100/GOOD 3266 19 CRANBROOK 71/GOOD 1357 19 100/GOOD 2305 23 100/GOOD 2643 25 REVELSTOKE 28/POOR 647 14 100/GOOD 1281 12 100/GOOD 3030 15 FORECAST UPPER WINDS FOR WEDNESDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m PENTICTON W 9. W 24 W 52 CRANBROOK W 20 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 100/GOOD 1709 15 100/GOOD 2276 21 100/GOOD 2726 16 100 MILE 100/GOOD 2430 16 100/GOOD 2781 26 100/GOOD 3581 20 WILLIAMS LK 100/GOOD 2136 14 100/GOOD 2627 24 100/GOOD 3667 17 PUNTZI MNT 100/GOOD 1769 15 100/GOOD 3131 28 100/GOOD 3257 21 PR. GEORGE 100/GOOD 1619 20 100/GOOD 2389 20 100/GOOD 2557 20 BURNS LAKE 100/GOOD 1428 16 100/GOOD 2562 23 100/GOOD 2624 21 SMITHERS 44/FAIR 862 14 100/GOOD 1697 17 100/GOOD 2010 18 FORECAST UPPER WINDS FOR WEDNESDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m PR. GEORGE W 30 W 33 SMITHERS W 26 W 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 100/GOOD 1114 18 100/GOOD 1295 17 100/GOOD 1609 17 FT STJOHN 100/GOOD 1516 18 100/GOOD 2121 18 100/GOOD 2351 11 WHITEHORSE 40/FAIR 1146 12 55/GOOD 1789 4 68/GOOD 1603 11 DAWSON 21/POOR 489 14 88/GOOD 1177 17 62/GOOD 715 23 WATSON LAKE 63/GOOD 1185 19 86/GOOD 1437 18 100/GOOD 1381 27 FORECAST UPPER WINDS FOR WEDNESDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m DEASE LAKE NW 20 NW 31 WATSON LAKE NW 31 W 46 WHITEHORSE NW 28 NW 41 MAYO N 17 NW 41 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 728 21 100/GOOD 683 29 100/GOOD 954 13 FRASER VLY 69/GOOD 552 17 91/GOOD 566 25 100/GOOD 1602 17 SRN VRISL 100/GOOD 666 21 100/GOOD 661 29 100/GOOD 1327 11 CNTRL VRISL 97/GOOD 674 17 100/GOOD 950 24 100/GOOD 1474 7 NRN VRISL 55/GOOD 326 24 100/GOOD 773 24 84/GOOD 1027 11 TERRACE 53/FAIR 625 12 100/GOOD 1129 13 100/GOOD 1335 13 STEWART 31/POOR 284 11 61/GOOD 465 13 62/GOOD 427 14 FORECAST UPPER WINDS FOR WEDNESDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m VANCOUVER W 27 W 41 W 56 SANDSPIT W 22 W 17 W 13 PORT HARDY W 18 W 30 W 43 VENTILATION GUIDELINES: 0-33.....POOR 34-54.....FAIR 55-100.....GOOD. VENTILATION INDICES NORMALLY DROP TO POOR AFTER SUNSET END/ $$$$^^