The duo outlasted Pella's tandem of Gerber and Harris in a four set marathon match (6-3, 6-7, 8-6, 7-5).
The victory set up a quarterfinal mathup with third-seeded Mahirishi's Gelfand and Thatcher. with the winner advancing to face Dubuque Wahlert.
Storm Lake dropped the first set 5-7, but they would answer back with a 7-5 win in the second set. However, round three belonged to Maharishi, again by a score of 7-5, sending the Andersons into the consolation bracket.
There, Storm Lake was matched up with Keokuk's team of O'Bleness and Gatton.
The Tornado duo made quick work of the team from Keokuk, taking a 6-2, 6-4 victory to wrap up Friday's play.
First on the agenda today will be a 9:30AM matchup with Columbus Catholic, 6-2, 7-5 winners in their previous match against Boone.
A win there sends the Andersons into the consolation final at 1:30PM and an opportunity to secure a fifth place finish. A loss has them playing for sseventh place.
Lakes Conference rival Spencer also sits in the consolation semifinal as their duo of Harman took the same path as the Tornadoes Friday.
Three of the top four seeds remain in contention for the championship as #1 Oskaloosa, #3 Maharishi, and #4 Decorah alive and well.
#2 St. Edmonds was knocked out in the first round by the same Columbus Catholic team Storm Lake will face today.
Dubuque Wahlert rounds out the semifinalist field.