FPCN39 CWLW 181400 SMOKE CONTROL FORECAST FOR BC AND YUKON ISSUED BY THE MOUNTAIN WEATHER SERVICE OFFICE OF ENVIRONMENT CANADA AT 7:00 AM PDT THURSDAY 18 MAY 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 68/GOOD 883 11 100/GOOD 1972 10 100/GOOD 1802 17 KAMLOOPS 100/GOOD 1518 16 100/GOOD 2383 10 100/GOOD 2456 22 OKANAGAN 100/GOOD 1399 13 100/GOOD 2331 8 100/GOOD 2240 23 CASTLEGAR 93/GOOD 1125 15 100/GOOD 2426 10 100/GOOD 1726 13 CRANBROOK 52/FAIR 1365 17 100/GOOD 2622 9 100/GOOD 2119 15 REVELSTOKE 83/GOOD 1241 10 100/GOOD 2006 9 100/GOOD 1331 14 FORECAST UPPER WINDS FOR THURSDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m PENTICTON 0 0 W 13 SW 19 CRANBROOK 0 0 W 9 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 2301 12 100/GOOD 3033 8 100/GOOD 3017 25 100 MILE 100/GOOD 2166 19 100/GOOD 3143 9 100/GOOD 3301 24 WILLIAMS LK 100/GOOD 2143 19 100/GOOD 3238 8 100/GOOD 3438 25 PUNTZI MNT 100/GOOD 1820 15 100/GOOD 3032 14 100/GOOD 2888 29 PR. GEORGE 100/GOOD 1922 18 100/GOOD 2882 9 100/GOOD 2481 31 BURNS LAKE 100/GOOD 1900 16 100/GOOD 2724 11 100/GOOD 2361 31 SMITHERS 100/GOOD 1821 9 100/GOOD 2326 8 100/GOOD 2064 25 FORECAST UPPER WINDS FOR THURSDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m PR. GEORGE SW 33 SW 44 SMITHERS SW 30 SW 33 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 29/POOR 517 30 100/GOOD 2717 21 100/GOOD 1934 14 FT STJOHN 26/POOR 823 26 100/GOOD 2633 23 100/GOOD 1650 14 WHITEHORSE 100/GOOD 1320 21 100/GOOD 2114 22 100/GOOD 1963 16 DAWSON 32/POOR 571 15 100/GOOD 2745 22 100/GOOD 3364 6 WATSON LAKE 100/GOOD 1342 21 100/GOOD 2554 23 56/GOOD 2322 12 FORECAST UPPER WINDS FOR THURSDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m DEASE LAKE S 24 S 37 WATSON LAKE SE 28 S 20 WHITEHORSE E 20 SE 20 MAYO E 20 E 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 23/POOR 487 1 34/FAIR 469 5 51/FAIR 433 9 FRASER VLY 22/POOR 613 4 63/GOOD 1093 9 100/GOOD 989 16 SRN VRISL 29/POOR 407 8 29/POOR 368 5 48/FAIR 301 22 CNTRL VRISL 33/POOR 536 8 74/GOOD 920 8 89/GOOD 989 10 NRN VRISL 66/GOOD 601 12 100/GOOD 1023 21 100/GOOD 835 21 TERRACE 100/GOOD 1400 9 100/GOOD 1812 11 100/GOOD 1038 17 STEWART 83/GOOD 622 11 47/FAIR 821 4 49/FAIR 277 19 FORECAST UPPER WINDS FOR THURSDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m VANCOUVER W 16 SW 17 SW 30 SANDSPIT SW 33 SW 37 SW 43 PORT HARDY S 46 SW 44 W 39 VENTILATION GUIDELINES: 0-33.....POOR 34-54.....FAIR 55-100.....GOOD. VENTILATION INDICES NORMALLY DROP TO POOR AFTER SUNSET END/ $$$$^^