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uk.sci.weather (UK Weather) (uk.sci.weather) For the discussion of daily weather events, chiefly affecting the UK and adjacent parts of Europe, both past and predicted. The discussion is open to all, but contributions on a practical scientific level are encouraged. |
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The mean monthly sea-level pressure chart for November 2003 is
dominated by three features -- a prominent Icelandic low (993 mbar), deeper than usual and displaced slightly south-east of its normal position; the Azores high (1023 mbar), rather more intense than usual and displaced WSW of its normal position, and a strong high (1026 mbar) over the south of European Russia. Another feature stands out: a marked trough extending SSE-wards through Biscay and across Spain. The mean flow over the British Isles (and much of western and northern Europe) is strongly SSW-ly. The only anomaly centres a -13mbar south of Iceland (at 58N 23W) +11mbar over northwest Russia +3mbar WSW of the Azores -2mbar over northwest Algeria The anomalous flow over the British Isles (and most of western and northern Europe) is strongly southerly. Mean pressure anomaly ranges from -1mbar over east Kent and the east Norfolk/Suffolk to -7mbar on the west coast of Ireland. Provisional CET: 8.3șC (1.4 degC above 71-00 mean) Prov E&W rain: 100mm (99% of 71-00 mean) Prov E&W sun: 72 hr (111% of 71-00 mean) Rainfall totals varied between 24mm at Loftus (N Yorks) and 388mm at Waterstein (Skye) though I have suspicions about this figure. There were a few sites in the western highlands and Snowdonia around 350mm. Rainfall percentages ranged from 31% at Loftus to 230% at Odiham (Hants). Sunshine totals varied between 114h at Falmouth (Cornwall) and 41h at Eskdalemuir (Dumfriesshire). Sunshine percentages ranged from 183% at Kirkwall (Orkney) where it was probably the sunniest November on record -- haven't checke that yet -- to 71% at Herstmonceux (Sussex). Philip Eden |
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