Wednesday came from behind to overcome a resolute Yeovil in blizzard-like conditions at Hillsborough.
The Glovers largely frustrated the Owls, defending in numbers and looking to hit on the break.
And this they did in the first half through Jonathan Obika but Jermaine Johnson hit back after the interval to haul the Owls level.
Namesake Reda sealed victory ten minutes from time to ease the tension amongst the home fans, who went home happy with their side having added another three points to their elevation target.
With much of the League 1 calendar decimated by the big freeze, Wednesday had the chance to turn the screw on their promotion rivals.
And Gary Megson's side duly bossed the early exchanges, controlling possession all over the park, albeit without calling Yeovil keeper Sam Walker into action.
It was only a matter of time, though, before Wednesday launched a serious attack and the first opening came on 18 minutes.
Jon Otsemobor won a free kick right on the edge of the area and S6 debutant John Bostock drilled a thumping drive that skimmed the top of the net.
Yeovil then broke on the counter and Dean Parrett might have done better bearing down on goal after cutting in from the right flank but his cross shot was blocked by David Prutton and Stephen Bywater smothered the danger.
That served as a warning shot to Wednesday, who continued to dominate while wary of the odd sortie upfield by the visitors.
Jermaine Johnson curled a clever effort narrowly wide on the half-hour mark before delivering a teasing cross that just evaded both Gary Madine and Chris O'Grady.
But while the score stayed goalless, Yeovil were a threat and proved exactly why four minutes before half time.
Gavin Williams played a neat ball through to Obika and the striker stroked past Bywater with a calm and accurate finish to give the Glovers the upper hand going into the break.
O'Grady and Madine linked up well to create the first chance of the second period, with the latter steering wide in front of an expectant Kop.
Wednesday made a double substitution just six minutes into the half, Lewis Buxton coming on for Otsemobor and Ryan Lowe replacing Madine.
And Lowe almost got on the scoresheet within two minutes. The former Bury man found room in the box to take a good feed from Prutton but Walker was down smartly to save.
The Glovers' keeper was powerless, though, on 57 minutes to prevent the Owls levelling the score.
A bouncing ball fell to Jermaine Johnson 20 yards out and the Jamaican international let fly with a blistering shot that positively flew past Walker into the top corner.
The Owls had the bit between their teeth and Reda Johnson headed wide following good work from Bostock down the channel and O'Grady went close with an angled effort.
Lowe sidefooted past the post and it seemed the Glovers' stern defence would help the visitors to a point.
But the Owls got their deserved winner on 80 minutes when Reda Johnson slammed home from close range after Walker spectacularly kept out substitute Clinton Morrison's header.
Wednesday: Bywater, Otsemobor (Buxton 53), Llera, Batth, R Johnson, Bostock, Semedo, Prutton, J Johnson, O'Grady (Morrison 68), Madine (Lowe 53)
Unused substitutes: O'Donnell, Lines
Yeovil: Walker, Ayling, N'Gala, A Williams, Upson, G Williams, Dickson, Edwards, Parrett (Haynes-Brown 76), Hinds, Obika
Unused substitutes: Stewart, Jones, MacLean, Agard