Save the Date: Clearing the air about the mystery of clouds

What is the difference between a cirrus cloud and a cirrocumulus cloud? Children can learn all about the clouds, the Columbia River and make 3-D snowflakes during Second Saturday from 1 to 3 p.m. today. Children must be accompanied by a parent or guardian. Families can arrive early to explore the Vanport Flood of 1948 exhibit on display starting at 11 a.m. at the Water Resources Education Center, 4600 S.E. Columbia Way, Vancouver. Admission is free. 360-487-7111 or www.cityofvancouver.us/watercenter

Fort Vancouver Regional Library Foundation hosts Bookapalooza 2016, its biggest used-book sale of the year, with surplus library books for sale and new books added each day from 9 a.m. to 6 p.m. Jan. 14-16 at the Fort Vancouver Regional Library District Headquarters, 1007 E. Mill Plain Blvd., Vancouver. Book costs range from 50 cents to $1. 360-906-4700 or www.fvrlf.org

Battle Ground author Leigh Goodison will celebrate the launch of her medical thriller, “The Jigsaw Man,” from 1 to 4 p.m. Jan. 16 at Vintage Books, 6613 E. Mill Plain Blvd., Vancouver. Goodison’s other books include, “Wild Ones,” “The Horse Trailer Owner’s Manual” and “Goodies from the Great White North.” 360-694-9519 or www.vintage-books.com/

The Unitarian Universalist Church of Vancouver invites community members to help create quilts for Martin Luther King Jr. Day of Service from 9 a.m. to noon Jan. 18. The quilts will go to the local chapter of Project Linus, an organization that gives blanks to children in trauma. No quilting skills are required, and the activity is appropriate for all ages, at the Unitarian Universalist Church of Vancouver, 4505 E. 18th St., Vancouver. Donations welcomed to cover materials costs. 360-833-0925 or www.uucvan.org

Visitors can meet local craft beverage makers during Drink This! Vancouver, a self-guided tour of participating business across uptown and downtown Vancouver along Main Street from 4 to 9 p.m. Jan. 23. There will be new beverage makers along with tastings of beer, wine, coffee, tea, soda, cider and spirits. www.drinkthisvancouver.com

Plan a trip across the river for the annual ChocolateFest, as hundreds of vendors providing sweet samples, along with cooking demonstrations, educational presentations from chocolatiers and wine pairings. The festival is a fundraiser for the World Forestry Center. ChocolateFest is open for 11 a.m. to 6 p.m. Jan. 23 and 11 a.m. to 5 p.m. Jan. 24 at the Oregon Convention Center, 777 N.E. Martin Luther King Jr. Blvd., Portland. It will also be open for those 21 and older 4 to 9 p.m. Jan. 22. Admission is $15, $13 for seniors, $8 for children and students, $25 for VIP. http://chocolatefest.org

The trio Three Together will perform a mix of folk, pop and soft rock songs, with an opening performance by Fine Company at 7:30 p.m. Jan. 30 at the Old Liberty Theater, 115 N. Main Ave., Ridgefield. Tickets are $15 360-887-7260 or www.oldlibertytheater.com

Clark Public Utilities hosts Race for Warmth on Jan. 31, a race to benefit its Operation Warm Heart program, which helps limited income families with their electric bills. The event features a 10K run and 5K walk/run through downtown Vancouver and along the waterfront, along with a free kids race, starting from Clark Public Utilities, 1200 Fort Vancouver Way, Vancouver. Day of race registration opens at 7 a.m. Jan. 31, with the kids run beginning at 8:30 a.m. Registration is $30, free for children. www.raceforwarmth.com