Thread: +TSRA ?
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Old June 27th 04, 08:18 PM posted to uk.sci.weather
Joe Hunt Joe Hunt is offline
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First recorded activity by Weather-Banter: Jan 2004
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Default +TSRA ?


"PJB" wrote in message
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"Joe Hunt" wrote in message
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"Joe Hunt" wrote in message
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Hi all,

The latest short TAFs at EGNX and EGBB going for a PROB30 of +TSRA and

TSGR
at EGCC.
Joe


Mod burst here at 1409Z, lasting all of a minute but dampening

everything.
Back edge of shower now visible with a growing tower of Cu.

Joe
--
Wymeswold, Leicestershire. 79m asl


Cloud tops were reaching just about -35C, which fits in pretty nicely to

the
expected tops. The -35C line on the 12Z Nottingham Ascent equates to just
above 400mb. Clearly the cap preventing release of plenty of low level

cape
was eroded this afternoon as the upper trough advanced and daytime heating
occured. (differential advection) Tops would have probably just overshot
the equlibirium level at just over 400mbs.

Regards
Paul


The onset of mass convection was clear as the PVA max region traversed E.
Only a mod burst here as all passed to the S and SE. Some spectacular Cu med
were observed and also some Cb. The "midday" ascents are actually launched
at 11Z IIRC. Where did you obtain 03354 from today as nothing from Wyoming
or Infomet ?

ATB, Joe