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Old April 5th 13, 12:12 PM posted to uk.sci.weather
George Booth George Booth is offline
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First recorded activity by Weather-Banter: Jul 2003
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Default Another record tumbles at Southend-on-Sea ~ Lowest April Max. 2.9°C

On 05/04/2013 11:31, Scott W wrote:
On Friday, April 5, 2013 11:20:28 AM UTC+1, George Booth wrote:
On 05/04/2013 10:58, Scott W wrote:

On Friday, April 5, 2013 10:40:41 AM UTC+1, George Booth wrote:


On 04/04/2013 20:15, Keith (Southend)G wrote:
Maximum temperature for me here at Southend-on-Sea was +2.9�C, which beat my previous lowest April maximum of 3.4� of 6th APril 2008.
Bob Prichards records I have show 2.8�C on the 3rd April 1964, 3.3�C 14th April 1966, 4.4�C 1970.


How we forget it's nothing new.


Keith (Southend)


http://www.southendweather.net
"Weather Home & Abroad"
09-09 maximum of 2.9 here (daytime max 2.1 yesterday) so the coldest


April 09-09 day in my record but only by a squeak. Light snow showers


earlier gave way to brighter conditions and there's a lot of daylight


now before 0900 GMT and the temperature crept up.


Early days I know but the monthly anomaly is running at -7.1 deg of the


1981-2010 mean. The landscape has a barren look.


09-09 maximum here was 3.2C at 0850z this morning. The minimum: 1.4C at 1208z yesterday. Despite snow grains pretty much all day yesterday I only recorded 0.6mm in the snowdon. It looks like the snow was heavier and more intense further east and south of here


..........and to the north of you as well Scott. Heavy wet snow driven

by 30mph gusts. Poor visibility in those showers as well. It's all about

those energy lines we spoke about yesterday. Radar showed these nicely.


--

George in Epping, west Essex, 350'asl

www.eppingweather.co.uk

www.winter1947.co.uk


Interesting, what was your 09-09 rainfall, George? I must be in a rain shadow here? Both my gauges are roughly in agreement - and I was laying concrete slabs yesterday - it was only towards around 3pm that the soil was even starting to become sodden with precipitation - so I'm fairly confident no rainfall was missed here...


0.6mm in the gauge but a good proportion of what was falling was swept
past the gauge by the strong winds-as observed by the builders I might
add just after they put the concrete down. The snow settled on the grass
but only for a short time and even then only 1cm or so in depth. It's
not a case of your being in a rain shadow it's simply that under these
strong north-easterlies convergence lines become established along the
NE-SW trending part of the Essex-Suffolk coast and/or along the E-W axis
of the Thames Estuary. These become conveyor belts of heavy showers and
if they do not shift then places along them experience high snowfall
totals e.g. south-east Essex January 1987. I should add they are not
unique to the South-East. These lines can be relatively narrow and
nearby areas experience little precipitation-all well shown on the radar
yesterday. Epping's short lived heavy snow was the result of one of the
convergence lines (the more northerly one) extending inland although we
are very much on the limits whereas south-east Essex and north Kent can
be seriously affected.
As an aside, I mentioned the other day all the local annual rainfall
data I have been collecting covering the last 150 years. Some impressive
differences in rainfall figures between weather stations in the same
area for the same year.

--
George in Epping, west Essex, 350'asl
www.eppingweather.co.uk
www.winter1947.co.uk