FPCN39 CWLW 041430 SMOKE CONTROL FORECAST FOR BC AND YUKON ISSUED BY THE MOUNTAIN WEATHER CENTRE OF ENVIRONMENT CANADA AT 7:00 AM PST TUESDAY 4 DECEMBER 2001 FOR TODAY. MIXING HEIGHTS IN METRES ABOVE SEA LEVEL. AVERAGE WINDS IN KM/H. SUBTRACT 20 FROM THE VENTILATION INDEX IN VALLEYS IF THE MIXING HEIGHT IS BELOW THE HEIGHT OF LOCAL MOUNTAINS OR HILLS. 04-December-2001 SOUTHERN INTERIOR TODAY TOMORROW 7:00 AM 4:00 PM 4:00 PM VI WND MXG HT VI WND MXG HT VI WND MXG HT KM/H M KM/H M KM/H M FRASER CANYON 32/POOR 14 560 36/FAIR 16 573 59/GOOD 17 916 KAMLOOPS 30/POOR 19 559 51/FAIR 21 796 65/GOOD 25 900 OKANAGAN 37/FAIR 29 651 64/GOOD 15 1346 71/GOOD 21 1228 CASTLEGAR 35/FAIR 19 776 62/GOOD 15 1358 53/FAIR 15 1166 CRANBROOK 24/POOR 19 1094 68/GOOD 23 1597 81/GOOD 21 1914 REVELSTOKE 31/POOR 19 667 32/POOR 12 819 39/FAIR 14 889 GOLDEN 32/POOR 17 1052 50/FAIR 17 1316 66/GOOD 17 1629 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m PENTICTON S 9 S 74 SW 70 CRANBROOK SW 37 W 46 CENTRAL INTERIOR TODAY TOMORROW 7:00 AM 4:00 PM 4:00 PM VI WND MXG HT VI WND MXG HT VI WND MXG HT KM/H M KM/H M KM/H M QUESNEL 22/POOR 20 667 28/POOR 21 726 23/POOR 16 706 100 MILE 15/POOR 16 1004 25/POOR 24 1067 35/FAIR 27 1136 WILLIAMS LAKE 13/POOR 15 987 20/POOR 17 1062 18/POOR 23 1014 PUNTZI MTN 16/POOR 26 963 31/POOR 23 1098 37/FAIR 23 1164 PRINCE GEORGE 23/POOR 27 788 19/POOR 24 770 29/POOR 22 865 BURNS LAKE 14/POOR 25 748 17/POOR 24 778 20/POOR 24 800 SMITHERS 13/POOR 22 552 11/POOR 15 545 24/POOR 24 640 MCBRIDE 26/POOR 20 890 40/FAIR 16 1135 34/FAIR 15 1064 CLEARWATER 18/POOR 19 480 40/FAIR 16 794 40/FAIR 19 735 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m PR. GEORGE SW 39 SW 30 SMITHERS W 41 W 41 NORTHERN BC/YUKON TODAY TOMORROW 7:00 AM 4:00 PM 4:00 PM VI WND MXG HT VI WND MXG HT VI WND MXG HT KM/H M KM/H M KM/H M FORT NELSON 11/POOR 19 400 12/POOR 11 438 17/POOR 9 546 FT ST JOHN 12/POOR 16 726 11/POOR 9 741 19/POOR 8 920 WHITEHORSE 36/FAIR 22 951 13/POOR 20 739 13/POOR 14 759 DAWSON 9/POOR 4 379 10/POOR 11 393 9/POOR 11 373 WATSON LAKE 11/POOR 6 756 10/POOR 11 701 12/POOR 21 713 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m DEASE LAKE S 54 SW 57 WATSON LAKE SE 30 S 28 WHITEHORSE SE 26 S 13 MAYO E 35 SE 19 COAST TODAY TOMORROW 7:00 AM 4:00 PM 4:00 PM VI WND MXG HT VI WND MXG HT VI WND MXG HT KM/H M KM/H M KM/H M VANCOUVER 66/GOOD 36 402 85/GOOD 30 752 46/FAIR 34 240 FRASER VALLEY 54/FAIR 23 508 59/GOOD 19 678 45/FAIR 36 270 SRN VAN ISLD 57/GOOD 28 419 77/GOOD 24 799 67/GOOD 36 426 CNTRL VAN ISLD 65/GOOD 29 499 68/GOOD 20 774 44/FAIR 24 334 NRN VAN ISLD 61/GOOD 25 522 70/GOOD 21 772 12/POOR 19 54 TERRACE 33/POOR 19 467 46/FAIR 16 717 17/POOR 17 304 STEWART 33/POOR 21 232 38/FAIR 12 507 10/POOR 16 18 FORECAST UPPER WINDS FOR THIS AFTERNOON 900m 1800m 2700m VANCOUVER W 39 W 48 W 56 SANDSPIT W 50 NW 57 NW 54 PORT HARDY W 56 W 61 W 63 VENTILATION GUIDELINES: POOR: 0-33 FAIR: 34-54 GOOD: 55-100 VENTILATION INDICES NORMALLY DROP TO POOR AFTER SUNSET. END/RWP