FPCN39 CWLW 251500 SMOKE CONTROL FORECAST FOR BC AND YUKON ISSUED BY THE MOUNTAIN WEATHER SERVICE OFFICE OF ENVIRONMENT CANADA AT 7:00 AM PST THURSDAY 25 NOVEMBER 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 40/FAIR 523 16 47/FAIR 776 7 100/GOOD 1851 11 KAMLOOPS 17/POOR 410 18 56/GOOD 877 11 100/GOOD 1572 25 OKANAGAN 45/FAIR 761 16 56/GOOD 1200 8 100/GOOD 1534 21 CASTLEGAR 17/POOR 610 18 37/FAIR 981 8 58/GOOD 766 20 CRANBROOK 19/POOR 1056 19 56/GOOD 1790 11 97/GOOD 1344 25 REVELSTOKE 28/POOR 634 16 81/GOOD 1218 9 58/GOOD 1082 15 FORECAST UPPER WINDS FOR THURSDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m PENTICTON SW 12 W 33 W 80 CRANBROOK SW 30 SW 87 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 23/POOR 653 26 80/GOOD 1529 17 91/GOOD 1304 8 100 MILE 14/POOR 983 21 80/GOOD 1596 15 76/GOOD 1391 22 WILLIAMS LK 16/POOR 1002 20 80/GOOD 1523 15 80/GOOD 1691 15 PUNTZI MNT 14/POOR 956 21 92/GOOD 1498 18 62/GOOD 1701 1 PR. GEORGE 16/POOR 752 23 80/GOOD 1508 18 43/FAIR 1200 10 BURNS LAKE 17/POOR 771 32 100/GOOD 1391 24 49/FAIR 1383 9 SMITHERS 14/POOR 560 27 65/GOOD 896 19 54/FAIR 1112 10 FORECAST UPPER WINDS FOR THURSDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m PR. GEORGE W 57 W 74 SMITHERS SW 52 W 74 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 12/POOR 401 2 14/POOR 533 4 13/POOR 444 6 FT STJOHN 18/POOR 746 37 14/POOR 723 35 17/POOR 767 24 WHITEHORSE 13/POOR 731 15 18/POOR 792 18 12/POOR 722 8 DAWSON 12/POOR 386 11 12/POOR 409 1 13/POOR 429 9 WATSON LAKE 12/POOR 704 10 13/POOR 718 4 14/POOR 746 23 FORECAST UPPER WINDS FOR THURSDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m DEASE LAKE SW 31 SW 59 WATSON LAKE S 19 SW 33 WHITEHORSE E 11 SE 26 MAYO E 41 E 37 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 20/POOR 166 7 24/POOR 238 15 100/GOOD 1451 20 FRASER VLY 17/POOR 185 9 25/POOR 336 9 100/GOOD 1175 15 SRN VRISL 23/POOR 318 10 25/POOR 323 13 100/GOOD 1708 22 CNTRL VRISL 22/POOR 141 10 23/POOR 223 15 100/GOOD 1677 15 NRN VRISL 15/POOR 78 18 80/GOOD 1305 6 100/GOOD 1439 2 TERRACE 14/POOR 268 20 100/GOOD 1404 15 34/FAIR 826 6 STEWART 34/FAIR 243 27 100/GOOD 1125 15 19/POOR 116 12 FORECAST UPPER WINDS FOR THURSDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m VANCOUVER W 37 W 52 W 70 SANDSPIT W 68 W 83 W 83 PORT HARDY W 35 W 54 W 74 VENTILATION GUIDELINES: 0-33.....POOR 34-54.....FAIR 55-100.....GOOD. VENTILATION INDICES NORMALLY DROP TO POOR AFTER SUNSET END/JDG $$$$^^