Sebastian Vettel made it three poles in-a-row in Korea on Saturday in a qualifying session much closer than some had thought - most fear another Vettel runaway on Sunday but the weather could stop him in his path.

Heading into Sunday's race one thing is for certain, the large gap Vettel had in Singapore in unlikely to be repeated. The Yeongam circuit is not playing to the strengths of Vettel and Red Bull as much as the street circuit in Marina Bay did two weeks ago and that is giving Hamilton and co. a hope of beating the German.

The tyres are also unlikely to play such a role as they did in Singapore, should the weather stay dry the gap between the super-soft and medium compounds is much smaller than it was in Singapore though similar degradation is expected.

Vettel also doesn't have the luxury of an extra set of option tyres like he did in Singapore after completing the single run in qualifying, and as a result the chances of him being able to run off and hide late in the race is reduced.

As I have mentioned however one key factor tomorrow is the weather. While typhoon Kitow has veered west making landfall south of Shanghai tomorrow evening, the outer bands of the storm are expected to hit South Korea bringing rain and strong winds.

Should that happen, it will change everything. The biggest strength Vettel has is the way he uses the exhaust gases to generate downforce through the floor and diffuser, with the use of lower revs to reduce wheel-spin in the wet that effect goes away and those cars that generate greater grip both mechanically and through the wings stand to benefit.

In recent wet races, the last proper wet race being Brazil last year, the world championship leader struggled, spinning on lap one before producing a drive through the field to claim the championship. In the wet running so far this year again Red Bull have not looked quite so dominant and with areas of the track similar to a street circuit the likelihood of a safety car is significantly increased.

The intermediate and full wet tyres also work in a much different way to the dry slick tyres so controlling the degradation on what will be an ever changing track is another area Red Bull could falter.

Of course don't assume the arrival of rain automatically rules Vettel out for victory, should it be a wet start and Vettel stay ahead the likelihood of the German pulling away is probably increased with the better visibility and Sebastian himself has proven himself to be a very good driver in all weather conditions.

The key tomorrow then is for someone to get ahead of Vettel early on, if Hamilton, Grosjean or Rosberg can get ahead then chances are we will have a very good race on our hands.

For the Ferrari's starting sixth and seventh particularly for Alonso it will be another case of using the DRS zones and/or the conditions to make his way through the pack. The Spaniard has made lightning fast starts all season so don't be surprised if he's in the top four by the end of lap one.

The same story applies for Kimi Raikkonen starting in ninth and for Mark Webber, who despite qualifying third starts thirteenth after taking the ten-place grid drop for his third reprimand following his lift back to the pits with Alonso in Singapore.

Further down, Esteban Gutierrez will try again to score his first points in F1 after qualifying eighth. McLaren, Force India and Toro Rosso will also be looking to move forward into the final points positions while at the back Williams will hope to have better race pace ahead of the Caterham's and Marussia's who could benefit if rain creates a crazy race.

All-in-all then looking forward to tomorrow and it will be case of trying to stop Sebastian Vettel getting away at the start and from their trying to find a way of beating the Red Bull and stopping him from winning a fourth successive race.

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