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Old October 22nd 09, 01:05 AM posted to uk.sci.weather
Lawrence Jenkins Lawrence Jenkins is offline
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First recorded activity by Weather-Banter: Dec 2006
Posts: 6,158
Default Unsettled out to 10 days?


"Will Hand" wrote in message
...

"Col" wrote in message
...

"Dawlish" wrote in message
...
On Oct 21, 6:48 pm, "Col" wrote:
"Dawlish" wrote in message

...

It's just not there. The 06z sinks the high!
http://www.wetterzentrale.de/pics/Rtavn2402.png

But back again on the 12z.....
--
Col

Bolton, Lancashire
160m asl


Very true Col! The 06z was probably an outlier, but the interruption
to the consistency begs a couple more runs and agreement from the ECM
before a forecast.


Yes, I am beginning to understand how you approach these10
day forecasts. It's all about consistency and ultimately 'confidence'.
If you get a run that suddenly goes against what the recent runs
have been showing then that confidence is shaken and it takes a
few more runs showing the original sceanario to get that confidence
back to it's original level.
That run *could* be an outlier, but then it *could* depict what the
weather actually does!
--
Col


Of course professional forecasters don't have that luxury. Customers want
forecasts and they want them now!

Will
--


Come on Will: Dawlish believes a Medium Range Forecast is one given by Derek
Acorah.

Any one 'ere knows a name beginning with P or PG maybe it was PG tips,
anyone 'ere fancy a cuppa? Hold a minute I can feel a message comin'
through; who is it Sam opps sorry Sam goes 'ome a six


Ey Up whats that? The winter forecast is behind the clock on mantelpiece.