Sky Bet Championship leaders Fulham suffered an unexpected 2-1 home defeat by Huddersfield, who boosted their own promotion hopes.
Bournemouth had seen Friday night's match against Nottingham Forest called off after Storm Eunice caused damage at the Vitality Stadium - and then Blackburn's clash with Millwall on Saturday was also postponed because of worsening conditions.
The Cottagers, though, could not take advantage to extend their lead at the top of the table as Huddersfield struck twice in the first half.
Danny Ward put the Terriers ahead in the 31st minute before Duane Holmes doubled the lead from the penalty spot two minute before the break.
Bobby De Cordova-Reid pulled a late goal back, but Fulham suffered a first league defeat since 20 December.
QPR left it late to draw 1-1 at home against Hull and sit fourth, above Huddersfield on goal difference.
Marcus Forss, on loan from Brentford, fired the Tigers into the lead in the 26th minute.
There was a lengthy delay just after the hour when Hull goalkeeper Matt Ingram needed treatment following a collision with QPR's Albert Adomah and eventually was taken off on a stretcher.
Ilias Chair then struck from close range with 15 minutes left to secure QPR a point.
Sheffield United, marshalled defensively by Ireland defender John Egan, continued their push up the table after sweeping past Swansea 4-0 at Bramall Lane.
Morgan Gibbs-White broke the deadlock in the 14th minute and George Baldock soon added a second before Billy Sharp made it 3-0 shortly before half-time.
Gibbs-White bagged his second with 12 minutes left as the Blades moved into the top six.
Middlesbrough saw their play-off ambitions stall after losing 2-1 at Bristol City.
Andreas Weimann gave the hosts an early lead, with Antoine Semenyo wrapping up the points in the second half.
Matt Crooks scored a late consolation for Boro, who are seventh and a point behind Sheffield United.
West Brom also lost ground on the top six following a 2-0 defeat at Luton.
Cameron Jerome headed in from a 55th-minute free-kick and Allan Campbell wrapped up the points with seven minutes left.
At the other end of the table, Louie Sibley hit a stoppage-time winner as Derby beat relegation rivals Peterborough 1-0, with both sides finishing with 10 men.
Posh defender Hayden Coulson was sent off after picking up two cautions in the space of four minutes just after the half-hour mark.
Rams captain Tom Lawrence was dismissed for a foul on Nathan Thompson early in the second half, but Sibley had the final say.
Reading kept themselves five points clear of Derby after a 3-2 win at Preston - a first in the Championship since November to ease the pressure on Veljko Paunovic.
Lucas Joao struck twice in the opening 19 minutes, with John Swift adding a third early in the second half.
Daniel Johnson pulled a goal back for the hosts, with Cameron Archer, on loan from Aston Villa, setting up a tense finale with 15 minutes to go but the Royals held out.
Bottom club Barnsley lost 1-0 at Coventry, where Dominic Hyam struck in the third minute of stoppage time.
Cardiff and Blackpool drew 1-1. Marvin Ekpiteta headed Blackpool into an 11th minute lead, but Ireland Under-21 international defender Joel Bagan had the home side level soon after the restart.
Stoke and Birmingham shared four goals at the bet365 Stadium.
Jordan James put the Blues ahead in the 12th minute, with Tyrese Campbell equalising before half-time.
Campbell struck again seven minutes into the second half, but Gary Gardner squared things up again on the hour.
Meanwhile, in League One, Ireland striker Troy Parrott set up MK Dons' winner as Connor Wickham came back to haunt former club Sunderland with a 76th minute goal to seal all three points.
The 2-1 away win for the Dons boosts their own promotion hopes while denting the Black Cats' in the process.
And former Boys In Green playmaker Wes Hoolahan scored a late goal for Cambridge United to cap a 2-0 home win over Accrington Stanley.
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