The host Wildcats used a fourth-quarter surge to advance to the double-elimination phase of the Class 1A District 4 tournament.
La Center outscored Forks 19-11 in the fourth quarter. Andrea Griffey hit a pair of timely 3-pointers to help turn the game for La Center, which built a six-point lead midway through the fourth quarter.
Forks had a shot at a tying 3-pointer that missed as time expired. The Wildcats (15-6) advance to take on Hoquiam on Friday at Centralia.
Katie Whitten had 25 points, four steals and five assists to lead La Center. She went 4 for 4 from the foul line to close out the game.