Tropical Storm Nadine

Thursday 20 September 2012, 16:44

Derek Brockway Derek Brockway

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Sometimes predicting the weather can be straightforward, (which makes my job easier), but other times it can be more challenging and that goes for this weekend!

At the moment, Saturday looks fine and dry thanks to high pressure but the forecast for Sunday is more complicated with a risk of wet and windy weather spreading up from the south.

It all depends on a developing area of low pressure in the Bay of Biscay and the exact track it takes.

The different computer models we use are saying different things and that increases uncertainty in the forecast.

So, based on the latest information, Saturday looks like being the best day of the weekend in Wales at the moment.

A cold start with some ground frost followed by a fine and dry with sunshine and light winds.

Sunday may start dry, bright in the north but during the day, the weather may go downhill with wind and rain spreading from the south.

The rain may be heavy and the Met Office has issued a warning for southern counties of Wales.

The warning may be extended as new information comes in but given the level of uncertainty it would be a good idea to keep an eye on the forecast for the weekend as things could well change.

Whatever happens on Sunday, next week looks much more unsettled; showers or longer spells of rain and windy at times as well.

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