FPCN39 CWLW 281400 SMOKE CONTROL FORECAST FOR COASTAL BC AND THE INTERIOR INCLUDING THE NORTHEAST ISSUED BY THE MOUNTAIN WEATHER SERVICE OFFICE OF ENVIRONMENT CANADA AT 7:00 AM PDT THURSDAY 28 OCTOBER 1999 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 30/POOR 432 14 83/GOOD 258 45 86/GOOD 496 30 KAMLOOPS 22/POOR 427 20 81/GOOD 443 24 100/GOOD 919 38 OKANAGAN 28/POOR 760 19 80/GOOD 1004 20 100/GOOD 946 34 CASTLEGAR 33/POOR 774 12 45/FAIR 732 24 50/FAIR 774 23 CRANBROOK 31/POOR 1097 14 57/GOOD 1360 29 84/GOOD 1355 26 REVELSTOKE 30/POOR 677 21 20/POOR 559 14 14/POOR 490 23 FORCAST UPPER WINDS FOR THURSDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m PENTICTON SE 16 S 41 S 85 CRANBROOK S 19 S 56 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 33/POOR 838 39 89/GOOD 1047 29 18/POOR 599 30 100 MILE 25/POOR 1098 43 41/FAIR 1160 26 98/GOOD 1219 37 WILLIAMS LK 19/POOR 1185 39 49/FAIR 1176 30 15/POOR 976 30 PUNTZI MNT 27/POOR 1008 34 63/GOOD 1175 37 100/GOOD 1813 38 PR. GEORGE 14/POOR 726 26 18/POOR 746 28 40/FAIR 855 37 BURNS LAKE 49/FAIR 974 25 95/GOOD 1152 28 100/GOOD 1253 38 SMITHERS 55/GOOD 851 19 70/GOOD 965 24 64/GOOD 822 33 FORCAST UPPER WINDS FOR THURSDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m PR. GEORGE SE 56 S 81 SMITHERS SE 52 SE 72 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 13/POOR 399 32 24/POOR 537 11 30/POOR 573 23 FT STJOHN 64/GOOD 1065 29 55/GOOD 1175 9 15/POOR 725 35 WHITEHORSE 14/POOR 741 29 13/POOR 733 22 55/GOOD 1092 9 DAWSON 15/POOR 420 22 20/POOR 436 27 22/POOR 485 21 WATSON LAKE 31/POOR 801 37 12/POOR 698 25 32/POOR 863 25 FORCAST UPPER WINDS FOR THURSDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m DEASE LAKE SE 31 SE 44 WATSON LAKE S 26 S 30 WHITEHORSE S 43 S 56 MAYO SE 35 S 43 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 53/FAIR 159 68 100/GOOD 1500 52 14/POOR 25 35 FRASER VLY 49/FAIR 254 43 100/GOOD 1500 37 15/POOR 92 38 SRN VRISL 97/GOOD 284 45 100/GOOD 1500 47 15/POOR 45 33 CNTRL VRISL 100/GOOD 675 39 100/GOOD 1500 37 13/POOR 53 20 NRN VRISL 100/GOOD 471 35 100/GOOD 2100 33 48/FAIR 191 31 TERRACE 13/POOR 252 14 70/GOOD 2012 13 37/FAIR 390 30 STEWART 20/POOR 130 16 35/GOOD 1247 16 26/POOR 136 28 FORCAST UPPER WINDS FOR THURSDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m VANCOUVER SE 64 S 78 S 93 SANDSPIT E 51 SE 54 SE 54 PORT HARDY SE 87 SE 94 S 80 VENTILATION GUIDELINES: 0-33.....POOR 34-54.....FAIR 55-100.....GOOD. VENTILATION INDICES NORMALLY DROP TO POOR AFTER SUNSET END/LM $$$$^^