AZ Alkmaar moved to the top of the Eredivisie table with a 2-0 win over in-form Ajax in blizzard-like conditions at the DSB Stadion today.
A Demy de Zeeuw penalty and a cheeky flick from Ari either side of half-time ended the visitors` six-match winning streak.
The snow began to fall heavily in the second half and free-flowing football became all but impossible as the ball held up on the surface, but AZ always looked to have more of an appetite for the challenge.
Louis van Gaal's men now lead NAC Breda on goal difference, while third-placed Ajax, who failed to score for the first time this season, are a point further behind.
FC Groningen missed the chance to make it three teams level at the top after they went down 3-0 at Willem II.
Groningen have won all six of their home games so far this season, but this was their third defeat in the road as a Mehmet Akgun strike and a first-half brace from Frank Demouge gave Willem II a comfortable victory.
The visitors` woes were compounded by the 90th-minute dismissal of Marcus Berg.
Groningen remain three points off the pace in fourth, while Willem II are up to seventh.
Feyenoord continued their recent revival by inflicting a sixth consecutive defeat on ADO den Haag with a 3-1 win at De Kuip.
Struggling ADO started the better and took the lead after nine minutes through Richard Knopper.
But that was as good as it got for the visitors, as Roy Makaay, Leroy Fer and Luigi Bruins all found the net to give Feyenoord their third win in their last four league outings.
In today`s other game, goals from Sander Keller, Cedric Van der Gun and Ali Boussaboun with two gave FC Utrecht a crushing 4-0 win over lowly Vitesse Arnhem.
Yesterday NAC came from behind to earn a 1-1 draw at home to NEC Nijmegen thanks to Edwin De Graaf`s 58th-minute leveller.
Lasse Schone had given NEC the lead in the first half.
FC Twente captain Blaise NKufo led by example with a hat-trick as his side picked up their first Eredivisie win in November with a crushing 6-0 triumph over Heerenveen.
NKufo and Kenneth Perez both chipped in with first-half doubles before Marko Arnautovic added a fifth soon after the break and the Twente skipper completed his treble in the 72nd minute.
Heerenveen had Mika Vayrynen sent off in stoppage time to add to their woes when he was shown a second yellow card for deliberately throwing the ball at the back of a Twente player.
PSV Eindhoven bounced back from consecutive defeats with a 4-0 thrashing of Heracles Almelo, all the goals coming in the first half.
Francisco Rodriguez, Ibrahim Afellay, Danko Lazovic and Balazs Dzsudzsak were all on target as PSV got their title challenge back on track.
The defending champions lie five points off top spot.