F1 likely to get rain for Brazil finale

1st November 2008, 21:03 by Keith Collantine 28 Comments »

The 2003 Brazilian Grand Prix was run in terrible conditions

The 2003 Brazilian Grand Prix was run in terrible conditions

Felipe Massa and Lewis Hamilton may have to contend with wet weather in addition to all the other pressures of an F1 season finale.

Since we first took a look at the weather for the Brazilian Grand Prix the forecasts have changed quite a bit more than usual. In recent days several weather forecasts have increased their predictions for wet weather tomorrow.

The Brazilian Meteorological Office warns of “possible thunderstorms” tomorrow. Local forecaster ClimaTempo agrees with the prediction of rain.

According to Accuweather Sao Paulo will see thunderstorms from 3-4pm – the race is due to start at 3pm local time.

This diagram on Autosport shows the expected rainfall in the area in the hours around the Grand Prix. It suggests up to 16mm of rain within a six-hour time window.

How could rain affect the race? Ferrari has generally been slower than McLaren in wet conditions. In both heavy wet conditions and in conditions where rain is falling on a dry track, we have seen McLaren perform better at Monte-Carlo, Silverstone, Spa-Francorchamps and Monza this year.

However on a track moving from damp to dry the Ferrari has been quicker. At least, that has been the case when the Ferrari in question is in Raikkonen’s hands – an oft-cited criticism of Massa is that wet weather racing is not one of his strengths.

But wet weather wouldn’t necessarily be bad news for him. Unpredictable conditions increase the likelihood of problems for Lewis Hamilton – which Massa needs if he is going to win the championship tomorrow. And whatever happens, Massa will have the benefit of starting at the front with a clear track – especially if the race begins behind the safety car.

The 2003 and 1996 Brazilian Grands Prix started and finished in heavy wet weather – the 2003 event had to be stopped early after several crashes. The 2004 and 1991 races saw light showers during otherwise dry encounters. Rain fell in the late stages of the 2001 race, and the 1993 event was interrupted by a massive downpour.

Please post any other links or observations on the weather for tomorrow’s critical race below.

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