Don’t be alarmed if there’s smoke near Lake Sonoma this week. A prescribed burn is scheduled for today, tomorrow and Friday, from nine in the morning to two in the afternoon each day. The Santa Rosa Junior College’s Fire Technology Program will be burning 80-acres of land at Warm Springs Dam. Smoke should be visible in the morning and early afternoon hours. The burn serves three purposes. It will train firefighters, reduce the threat of a large wildfire in the area, and allow the U.S. Army Corps of Engineers to inspect the dam.