FPCN39 CWLW 131400 SMOKE CONTROL FORECAST FOR BC AND YUKON ISSUED BY THE MOUNTAIN WEATHER SERVICE OFFICE OF ENVIRONMENT CANADA AT 7:00 AM PDT THURSDAY 13 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 22/POOR 374 14 60/GOOD 815 9 100/GOOD 784 17 KAMLOOPS 19/POOR 454 17 60/GOOD 1009 16 100/GOOD 1566 22 OKANAGAN 57/GOOD 860 14 60/GOOD 1788 3 100/GOOD 2373 18 CASTLEGAR 38/FAIR 840 10 60/GOOD 1827 9 100/GOOD 1499 10 CRANBROOK 60/GOOD 1807 9 60/GOOD 1208 23 83/GOOD 1804 13 REVELSTOKE 60/GOOD 996 13 60/GOOD 762 16 66/GOOD 1024 10 FORECAST UPPER WINDS FOR THURSDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m PENTICTON W 9. W 28 W 43 CRANBROOK W 17 W 48 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 1415 24 100/GOOD 2121 27 100/GOOD 1380 11 100 MILE 90/GOOD 1636 17 100/GOOD 1373 14 100/GOOD 1659 23 WILLIAMS LK 100/GOOD 1634 21 100/GOOD 1984 15 66/GOOD 1423 14 PUNTZI MNT 100/GOOD 1647 20 100/GOOD 1643 23 91/GOOD 1515 19 PR. GEORGE 100/GOOD 1728 31 100/GOOD 2250 38 100/GOOD 2216 26 BURNS LAKE 100/GOOD 1836 31 100/GOOD 2335 36 100/GOOD 1981 31 SMITHERS 100/GOOD 1648 26 100/GOOD 2133 30 100/GOOD 1843 27 FORECAST UPPER WINDS FOR THURSDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m PR. GEORGE NW 24 NW 43 SMITHERS N 20 NW 35 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 28/POOR 624 12 100/GOOD 2027 8 100/GOOD 1663 12 FT STJOHN 100/GOOD 2202 20 100/GOOD 2381 21 100/GOOD 2112 28 WHITEHORSE 82/GOOD 1197 20 100/GOOD 1393 4 100/GOOD 1321 9 DAWSON 32/POOR 518 30 100/GOOD 622 14 100/GOOD 654 12 WATSON LAKE 40/FAIR 1053 15 100/GOOD 2146 6 100/GOOD 1748 2 FORECAST UPPER WINDS FOR THURSDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m DEASE LAKE NE 24 N 22 WATSON LAKE 0 0 N 20 WHITEHORSE 0 0 N 20 MAYO N 9 N 20 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 38/FAIR 222 9 49/FAIR 336 22 78/GOOD 368 21 FRASER VLY 14/POOR 105 7 49/FAIR 808 17 100/GOOD 736 22 SRN VRISL 97/GOOD 531 8 49/FAIR 165 24 30/POOR 136 17 CNTRL VRISL 86/GOOD 487 4 49/FAIR 420 24 52/FAIR 294 24 NRN VRISL 18/POOR 174 9 32/POOR 854 13 100/GOOD 1351 20 TERRACE 100/GOOD 1167 22 100/GOOD 1727 25 100/GOOD 1537 23 STEWART 100/GOOD 738 26 100/GOOD 565 27 59/GOOD 247 27 FORECAST UPPER WINDS FOR THURSDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m VANCOUVER 0 0 W 20 W 30 SANDSPIT NW 31 NW 31 NW 43 PORT HARDY N 16 NW 24 W 28 VENTILATION GUIDELINES: 0-33.....POOR 34-54.....FAIR 55-100.....GOOD. VENTILATION INDICES NORMALLY DROP TO POOR AFTER SUNSET END/ $$$$^^