The Storm Lake netters travel to Spencer on Tuesday night with third place in the conference up for grabs in the regular season finale.
The Tornadoes dropped the first game 23-25 but battled back to claim the next two 25-17 and 25-21. The Tigers countered to win the fourth 25-13 and seemed to have the fifth wrapped up with a 14-11 lead.
As they had all night, Storm Lake kept battling to pull off the improbable 16-14 comeback.
"Cassie (Meylor) had a few great serves and Katie Blum had an awesome block that really ignited the team," said Tornado coach Kim Johnson. "The ladies dug deep and put everything on the line to win the last game."
Storm Lake's victory moves their record to 18-11 on the year with a 5-3 conference mark. Their third place finish in the Lakes Conference is shared with LeMars.
Western Christian took top honors in the Lakes with a perfect 8-0 record. Sheldon finished second at 7-1.
In addition to keying the dramatic comeback win, Meylor had a monster of a night for Storm Lake as she finished with 15 kills and eight aces while going 23 for 24 serving.
Blum was also in top form Tuesday as she notched 13 kills and a pair of aces. Jordan Bauer added seven aces to go along with her team leading 20 assists. Megan Thompson was second with 17.
Defensively, Nicole Martin led the way with 15 digs. Blum added ten to go with a team-high three blocks. Lori Phanchone added two.
"Wow! What a night," said Johnson. "It was a battle from the beginning to the end and the girls never gave up. I'm so proud of this team! This is the best we have played in the last two weeks and it is a perfect time with regionals beginning on Monday."
Monday's quarterfinal will be on the road as the Tornadoes take on Denison-Schleswig (8-16). The winner advances to play again on Thursday with a probable matchup against Bishop Heelan, the #3 team in Class 3A. The Crusaders will host Sergeant-Bluff Luton Monday in Sioux City.