FPCN39 CWLW 041400 SMOKE CONTROL FORECAST FOR BC AND YUKON ISSUED BY THE MOUNTAIN WEATHER CENTRE OF ENVIRONMENT CANADA AT 7:00 AM PDT TUESDAY 4 JULY 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 50/FAIR 722 9 60/GOOD 785 10 100/GOOD 1675 10 KAMLOOPS 43/FAIR 891 9 88/GOOD 1031 18 100/GOOD 1984 11 OKANAGAN 50/FAIR 970 8 100/GOOD 1172 13 100/GOOD 2135 9 CASTLEGAR 100/GOOD 1536 11 100/GOOD 1594 11 100/GOOD 1999 8 CRANBROOK 100/GOOD 1951 15 100/GOOD 2331 20 100/GOOD 2636 16 REVELSTOKE 100/GOOD 1132 20 100/GOOD 1423 11 100/GOOD 1580 11 FORECAST UPPER WINDS FOR TUESDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m PENTICTON 0 0 W 13 W 11 CRANBROOK SW 11 SW 30 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 40/FAIR 1045 5 100/GOOD 2343 15 100/GOOD 2489 12 100 MILE 35/FAIR 1684 3 100/GOOD 2266 18 100/GOOD 2628 12 WILLIAMS LK 50/FAIR 1745 5 100/GOOD 2442 15 100/GOOD 2891 9 PUNTZI MNT 79/GOOD 1557 11 100/GOOD 2802 13 70/GOOD 2352 6 PR. GEORGE 22/POOR 1003 1 100/GOOD 2834 14 100/GOOD 2303 15 BURNS LAKE 53/FAIR 1368 8 96/GOOD 2259 9 100/GOOD 2287 11 SMITHERS 45/FAIR 1225 6 100/GOOD 2090 7 95/GOOD 2085 8 FORECAST UPPER WINDS FOR TUESDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m PR. GEORGE W 19 NW 17 SMITHERS NW 35 N 31 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 491 5 100/GOOD 2471 15 100/GOOD 1696 16 FT STJOHN 14/POOR 728 8 100/GOOD 2874 18 100/GOOD 2191 19 WHITEHORSE 18/POOR 824 8 61/GOOD 2064 6 82/GOOD 2117 7 DAWSON 34/FAIR 633 5 100/GOOD 2288 12 84/GOOD 2311 7 WATSON LAKE 38/FAIR 1043 14 65/GOOD 2246 6 76/GOOD 2215 4 FORECAST UPPER WINDS FOR TUESDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m DEASE LAKE N 19 N 9 WATSON LAKE N 22 N 11 WHITEHORSE NW 15 0 0 MAYO W 33 W 31 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 56/GOOD 555 12 76/GOOD 800 14 75/GOOD 837 12 FRASER VLY 50/FAIR 407 12 75/FAIR 784 14 70/GOOD 931 12 SRN VRISL 46/FAIR 445 13 79/GOOD 832 12 74/GOOD 790 12 CNTRL VRISL 53/FAIR 449 11 93/GOOD 1095 10 88/GOOD 1077 10 NRN VRISL 43/FAIR 325 19 100/GOOD 891 25 77/GOOD 720 20 TERRACE 69/GOOD 872 9 100/GOOD 1742 10 75/GOOD 1177 9 STEWART 25/POOR 191 8 59/GOOD 636 13 58/GOOD 656 12 FORECAST UPPER WINDS FOR TUESDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m VANCOUVER W 29 W 30 W 24 SANDSPIT NW 22 W 11 0 0 PORT HARDY NW 29 NW 33 NW 31 VENTILATION GUIDELINES: 0-33.....POOR 34-54.....FAIR 55-100.....GOOD. VENTILATION INDICES NORMALLY DROP TO POOR AFTER SUNSET END/WJW $$$$^^