Volcanic Ash Advisory
Thursday 15, April 2010
A new phase of the Eyjafjallajökull eruption started around midnight on the 14th of April, where melt penetrated its way to the central crater beneath the glacier.
Bad weather is making visual observations difficult, but surveillance flights with radar and temperature sensors are expected to shed light on conditions this evening.
Volcanic ash has been observed in British airspace and the Aviation Services Division in Met Eireann have warnings in effect for the ash to penetrate Irish airspace to the east and southeast this afternoon and evening.
The meteorological situation: There is an anticyclone centered to the northwest of Ireland. The airflow is anticlockwise around an anticyclone and thus the air is being steered down from Iceland to over Scotland and back around towards the southeast of Ireland.
Our weather models are indicating that it is going to remain dry over the next couple of days so we do not expect any significant deposition of ash in the short term.
Next week the airflow will be more directly from Iceland to Ireland and there will be precipitation so, if the eruptions continue, there is likely to be deposition. This advisory will be updated at 1800.
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