D&D Encounters season 13, the spring 2013 season, begins on April 10 with week 0. The adventure itself – Storm Over Neverwinter – runs 8 weeks from April 17-June 5.
This is an adventure for characters level 3-6. It says levels 4-6 on the cover, but the text inside clearly trumps that and expects new PCs to begin at level 3. This is a first for D&D Encounters. It may make things a bit tougher for brand new players to just jump in with a character above level 1, but those of us who have played since season 1 will certainly appreciate an adventure with a bit more teeth.