FPCN39 CWLW 011400 SMOKE CONTROL FORECAST FOR BC AND YUKON ISSUED BY THE MOUNTAIN WEATHER SERVICE OFFICE OF ENVIRONMENT CANADA AT 7:00 AM PDT MONDAY 1 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 100/GOOD 1004 15 100/GOOD 1453 10 100/GOOD 1611 15 KAMLOOPS 100/GOOD 1421 18 100/GOOD 2362 11 100/GOOD 2239 23 OKANAGAN 100/GOOD 1470 15 100/GOOD 2024 8 100/GOOD 2230 17 CASTLEGAR 23/POOR 638 19 100/GOOD 1984 9 100/GOOD 2028 15 CRANBROOK 17/POOR 1026 12 100/GOOD 2328 10 100/GOOD 2310 20 REVELSTOKE 40/GOOD 1355 10 76/GOOD 1771 14 100/GOOD 1704 10 FORECAST UPPER WINDS FOR MONDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m PENTICTON S 9. S 30 SW 54 CRANBROOK SW 11 SW 35 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 1861 11 100/GOOD 3218 11 100/GOOD 3131 24 100 MILE 100/GOOD 1897 15 100/GOOD 2573 13 100/GOOD 3032 20 WILLIAMS LK 100/GOOD 1991 11 100/GOOD 2947 13 100/GOOD 3233 18 PUNTZI MNT 100/GOOD 1635 12 100/GOOD 3204 15 100/GOOD 2602 22 PR. GEORGE 100/GOOD 1864 14 100/GOOD 2973 7 100/GOOD 3114 14 BURNS LAKE 100/GOOD 1866 15 100/GOOD 2856 12 100/GOOD 2340 17 SMITHERS 100/GOOD 1484 14 100/GOOD 2366 13 100/GOOD 1662 18 FORECAST UPPER WINDS FOR MONDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m PR. GEORGE S 52 SW 50 SMITHERS S 59 S 94 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 24/POOR 489 28 100/GOOD 3538 32 100/GOOD 3127 7 FT STJOHN 100/GOOD 1565 27 100/GOOD 3840 32 100/GOOD 2812 10 WHITEHORSE 100/GOOD 1539 15 100/GOOD 2938 19 100/GOOD 2727 13 DAWSON 38/FAIR 636 15 100/GOOD 1816 16 100/GOOD 2827 4 WATSON LAKE 100/GOOD 1220 25 100/GOOD 3030 24 100/GOOD 3071 11 FORECAST UPPER WINDS FOR MONDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m DEASE LAKE S 41 S 76 WATSON LAKE S 35 S 28 WHITEHORSE SE 35 S 52 MAYO S 22 SW 30 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 70/GOOD 447 23 90/GOOD 481 16 49/FAIR 455 12 FRASER VLY 100/GOOD 707 19 100/GOOD 919 15 98/GOOD 968 5 SRN VRISL 57/GOOD 364 20 85/GOOD 376 13 34/FAIR 336 11 CNTRL VRISL 75/GOOD 543 18 90/GOOD 1147 15 100/GOOD 847 14 NRN VRISL 56/GOOD 525 13 100/GOOD 1195 13 100/GOOD 422 37 TERRACE 100/GOOD 1169 16 100/GOOD 1181 12 100/GOOD 1245 18 STEWART 73/GOOD 454 17 90/GOOD 308 11 31/POOR 163 19 FORECAST UPPER WINDS FOR MONDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m VANCOUVER S 33 S 57 SW 67 SANDSPIT SW 44 S 56 S 70 PORT HARDY S 77 S 102 S 91 VENTILATION GUIDELINES: 0-33.....POOR 34-54.....FAIR 55-100.....GOOD. VENTILATION INDICES NORMALLY DROP TO POOR AFTER SUNSET END/ $$$$^^