Thread: Storm Katie
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Old March 25th 16, 09:25 AM posted to uk.sci.weather
Graham Easterling[_3_] Graham Easterling[_3_] is offline
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Default Storm Katie

On Friday, March 25, 2016 at 4:45:57 AM UTC, Tudor Hughes wrote:
On Thursday, 24 March 2016 20:07:40 UTC, Len Wood wrote:
There will be a price to pay for such a buxom storm on Easter Monday.

http://www.wetterzentrale.de/pics/brack4.gif


http://meteocentre.com/models/compar...12_096_ECM.gif

Gale force gusts at the very least.
An equinoctial gale, albeit it a few days late.

Len
Wembury, SW Devon


That link goes to the chart for 12h Tuesday. For 12h Monday try this:
http://www.weathercharts.org/ukmomslp.htm and scroll down.
GFS has 35 kt mean over SE England.

Tudor Hughes, Warlingham, Surrey.


The Atlantic swell forecast is interesting. Katie is too fast moving a feature to develop a big swell completely in her own right, but runs over a large swell created by a preceding feature and is forecast to produce something big.

This shows the development rather well. Sunday 3am shows the pre existing large swell to the SW of Ireland. Run the sequence forward and the swell is re-invigorated by Katie.

Other models suggest the really big swell could hit Cornwall, however switch to the 'period' forecast' and it doesn't look like being too powerful, limited fetch & period.

It's been pretty big the last 2 days, though much smaller this morning.

Graham
Penzance