FPCN39 CWLW 191400 SMOKE CONTROL FORECAST FOR BC AND YUKON ISSUED BY THE MOUNTAIN WEATHER SERVICE OFFICE OF ENVIRONMENT CANADA AT 7:00 AM PDT WEDNESDAY 19 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 77/GOOD 698 17 100/GOOD 1281 12 100/GOOD 1318 12 KAMLOOPS 78/GOOD 804 21 80/GOOD 1701 12 100/GOOD 1927 17 OKANAGAN 79/GOOD 953 15 80/GOOD 1660 10 100/GOOD 1884 14 CASTLEGAR 76/GOOD 966 17 100/GOOD 2220 10 100/GOOD 2398 9 CRANBROOK 25/POOR 1085 20 100/GOOD 2541 8 100/GOOD 2627 10 REVELSTOKE 60/GOOD 899 14 100/GOOD 1807 8 100/GOOD 1560 6 FORECAST UPPER WINDS FOR WEDNESDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m PENTICTON E 9. SE 13 SW 9 CRANBROOK 0 0 SW 11 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 80/GOOD 1327 8 56/GOOD 1617 3 100/GOOD 2870 23 100 MILE 100/GOOD 1840 12 100/GOOD 3076 18 100/GOOD 2871 22 WILLIAMS LK 89/GOOD 1764 9 100/GOOD 2764 12 100/GOOD 3127 20 PUNTZI MNT 66/GOOD 1429 10 100/GOOD 2204 14 100/GOOD 2601 25 PR. GEORGE 71/GOOD 1199 15 72/GOOD 1627 8 100/GOOD 2933 20 BURNS LAKE 100/GOOD 1409 19 100/GOOD 2079 19 100/GOOD 1771 27 SMITHERS 81/GOOD 977 20 100/GOOD 1358 14 100/GOOD 1079 26 FORECAST UPPER WINDS FOR WEDNESDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m PR. GEORGE S 44 SW 37 SMITHERS SW 33 SW 50 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 17/POOR 449 19 100/GOOD 2541 20 100/GOOD 2548 25 FT STJOHN 48/FAIR 922 30 100/GOOD 2646 28 100/GOOD 2234 24 WHITEHORSE 100/GOOD 1371 22 100/GOOD 1761 25 100/GOOD 1156 34 DAWSON 15/POOR 422 21 96/GOOD 957 15 90/GOOD 874 27 WATSON LAKE 100/GOOD 1366 24 100/GOOD 2092 16 100/GOOD 1209 28 FORECAST UPPER WINDS FOR WEDNESDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m DEASE LAKE SW 22 SW 35 WATSON LAKE SW 41 W 28 WHITEHORSE SW 39 SW 65 MAYO S 11 SW 22 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 59/GOOD 716 12 34/FAIR 516 6 37/FAIR 493 6 FRASER VLY 72/GOOD 866 11 58/GOOD 1007 8 76/GOOD 1154 8 SRN VRISL 70/GOOD 717 18 33/POOR 438 3 35/FAIR 391 3 CNTRL VRISL 64/GOOD 613 18 82/GOOD 1006 7 54/FAIR 695 7 NRN VRISL 56/GOOD 550 10 89/GOOD 665 16 88/GOOD 402 30 TERRACE 74/GOOD 658 17 87/GOOD 806 15 70/GOOD 550 25 STEWART 100/GOOD 729 14 42/FAIR 350 11 15/POOR 51 27 FORECAST UPPER WINDS FOR WEDNESDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m VANCOUVER E 9. SW 13 SW 26 SANDSPIT S 40 SW 41 SW 39 PORT HARDY 0 0 S 24 SW 33 VENTILATION GUIDELINES: 0-33.....POOR 34-54.....FAIR 55-100.....GOOD. VENTILATION INDICES NORMALLY DROP TO POOR AFTER SUNSET END/JDG $$$$^^