The Met Office has launched ash charts which aim to show the potential movement and concentration of volcanic ash over the coming five days.
The predictions assume that the volcano will continue to erupt at the same intensity throughout the time span, although the Met Office acknowledges that the volcano's activity has not remained constant for more than a couple of days.
Until now, the Met Office has provided charts showing ash forecasts for the next 18 hours.
"Beyond 18 hours we have to deal with the unpredictability of the volcano and it is worth stressing that forecasts of winds become more uncertain the longer the lead time," says the Met Office in its release. "Hence these forecasts are for general guidance only and you should refer to the short period charts for more accurate information."
The Met Office, in its 3.45pm update yesterday, said that winds from the northwest may cause ash to impact some parts of the UK. However, it added that winds are predicted to swing into a south westerly direction by the middle of next week, which would take most of any ash away from the British Isles.
CAA/NATS, who are responsible for airspace restrictions, closed Northern Ireland and Isle of Man airspace last night due to high density volcanic ash. There were no other restrictions in UK airspace early this morning.
The "dynamic" situation is expected to continue for some time. Explosive activity continues at the Eyjafjallajökull volcano, with the ash plume reaching heights of up to around 25,000 ft. The Icelandic Meteorological Office state that there are no signs that the eruption is about to end.
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