FPCN39 CWLW 021500 SMOKE CONTROL FORECAST FOR BC AND YUKON ISSUED BY THE MOUNTAIN WEATHER SERVICE OFFICE OF ENVIRONMENT CANADA AT 7:00 AM PST THURSDAY 2 DECEMBER 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 63/GOOD 829 30 65/GOOD 988 36 49/FAIR 548 19 KAMLOOPS 40/FAIR 581 22 65/GOOD 996 30 51/FAIR 729 17 OKANAGAN 40/FAIR 847 32 68/GOOD 634 26 46/FAIR 909 17 CASTLEGAR 75/POOR 890 22 100/GOOD 1112 24 52/FAIR 1113 10 CRANBROOK 28/POOR 1096 24 50/FAIR 742 24 50/FAIR 945 15 REVELSTOKE 100/GOOD 1179 20 60/GOOD 931 23 49/FAIR 978 9 FORECAST UPPER WINDS FOR THURSDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m PENTICTON S 11 SW 26 SW 59 CRANBROOK SW 20 W 57 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 51/FAIR 876 14 62/GOOD 663 18 16/POOR 594 31 100 MILE 40/FAIR 1032 22 63/GOOD 964 28 46/FAIR 1229 26 WILLIAMS LK 38/FAIR 1010 15 79/GOOD 1297 20 14/POOR 976 29 PUNTZI MNT 46/FAIR 1040 24 90/GOOD 1697 16 13/POOR 931 23 PR. GEORGE 42/FAIR 894 19 62/GOOD 709 21 20/POOR 775 32 BURNS LAKE 47/FAIR 776 27 62/GOOD 1077 16 16/POOR 769 24 SMITHERS 44/FAIR 567 24 69/GOOD 1018 16 15/POOR 584 19 FORECAST UPPER WINDS FOR THURSDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m PR. GEORGE SW 56 W 78 SMITHERS SW 43 W 57 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 19/POOR 596 6 12/POOR 407 11 13/POOR 400 28 FT STJOHN 19/POOR 761 16 13/POOR 733 19 13/POOR 722 27 WHITEHORSE 14/POOR 738 25 13/POOR 720 29 12/POOR 714 31 DAWSON 12/POOR 381 21 12/POOR 379 27 14/POOR 396 29 WATSON LAKE 13/POOR 711 15 14/POOR 740 17 14/POOR 725 11 FORECAST UPPER WINDS FOR THURSDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m DEASE LAKE SW 28 SW 50 WATSON LAKE S 30 SW 52 WHITEHORSE S 31 S 52 MAYO SE 31 S 39 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 100/GOOD 609 31 67/GOOD 651 31 41/FAIR 149 43 FRASER VLY 65/GOOD 395 27 60/GOOD 652 21 32/POOR 251 26 SRN VRISL 100/GOOD 593 31 61/GOOD 561 21 35/FAIR 123 34 CNTRL VRISL 100/GOOD 401 27 64/GOOD 557 19 28/POOR 122 32 NRN VRISL 62/GOOD 630 26 53/FAIR 317 24 15/POOR 48 35 TERRACE 20/POOR 356 14 55/GOOD 629 14 12/POOR 241 20 STEWART 17/POOR 116 13 55/GOOD 627 13 12/POOR 40 19 FORECAST UPPER WINDS FOR THURSDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m VANCOUVER S 61 S 81 SW 81 SANDSPIT W 46 W 54 W 52 PORT HARDY SW 42 SW 56 SW 67 VENTILATION GUIDELINES: 0-33.....POOR 34-54.....FAIR 55-100.....GOOD. VENTILATION INDICES NORMALLY DROP TO POOR AFTER SUNSET END/MWSO $$$$^^