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Old August 2nd 04, 05:28 PM posted to uk.sci.weather
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First recorded activity by Weather-Banter: Jul 2003
Posts: 6,134
Default July 2004: Synoptic overview

Mean monthly sea-level pressure showed a low of
1007mbar west of Iceland, a weak low 1011mbar
over central Sweden, a high 1025 mbar just west
of the Azores, and a high 1019 mbar in the Russian
Arctic. This last feature aside, the pattern was very
close to normal over the Atlantic/Europe sector.

Compared with 1961-90, mean pressure was
within 2 mbar of normal across most of Europe
and the adjacent Atlantic. The main anomaly
centres lay over the Arctic Basin and Canada,
with +3 mbar over Nova Scotia and Newf'dland,
-5mbar over northwest Greenland, and +6mbar
near Novaya Zemblya.

The anomalous flow over the British Isles was
ill-defined ... weakly southerly over Scotland
and weakly WNW-ly over Ireland, England
and Wales.

Provisional CET 15.8șC wich is 0.7 degC below
the 1971-2000 mean.
E&W rainfall: 74.4mm (130% of '71-'00)
E&W sunsh: 177.3h (90%)

CScot T: 14.2șC (0.4 degC below)
Scot rain: 47mm (78%)
Scot sun: 136h (87%)

NI temp: 14.3șC (0.6 degC below)
NI rain: 65mm (98%)
NI sun: 149h (100%)

At a local level rainfall percentages ranged from
29% at Altnaharra to 330% at Wittering (nr
Peterborough). Sunshine percentages ranged
from c.70% at Aviemore to 124% at Valentia.

(c) Philip Eden



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