Thread: Piers forecast
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Old February 15th 14, 07:46 AM posted to uk.sci.weather
Vidcapper[_2_] Vidcapper[_2_] is offline
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Default Piers forecast
On 14/02/2014 19:21, wrote:
An unusually precise forecast from Weather Action:

"What will happen to that DEEP LOW 15th (currently similar to 12th on
Forecast maps)?

WeatherAction Answer. It will NOT be as severe as MO say. The Central
pressure 960 mb at 00z 15th over Eire/Irish sea will be higher, and
the centre will not have advanced so fast. The system will fill
somewaht (sic) as it proceeds from now (13th 11z). The reason? We are
now moving from an R5 into an an R3 period and Standard Met cannot
well forecast out of an R5."

What are R5 & R3 periods, anyway?


--

Paul Hyett, Cheltenham
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