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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 Atlantic remained quite active until about Feb 19, but
the last segment of the month was very blocked. Anticyclones somewhere or other controlled the UK's weather until the 11th and again from the 20th onwards, so it was another generally dry month with no serious gales. More available: Charts: http://www.climate-uk.com/monpre/0602.htm The Monthly Review is already up at: at: http://www.climate-uk.com/monthly/0602.htm Graphs: http://www.climate-uk.com/graphs/0602.htm and http://www.climate-uk.com/graphs/200602.htm Not The Long Range Forecast will be uploaded on Mar 3 to http://www.climate-uk.com/page4.html The mean sea-level chart shows that the normal Icelandic Low is split between centres of 1000 mbar off Labrador and 1003 mbar in the Barents Sea.. There are subsidiary low centres over Denmark and near Sicily. Highest pressure (around 1020 mar) is found near the Azores, east of Moscow, and over northern Greenland. Pressure is almost uniform over the British Isles although there is a suggestion of a N to NWly flow over England and Wales. The central feature of the sea-level pressure anomaly pattern is a huge area of above-average pressure covering much of the northern Atlantic, Greenland, Scandinavia and the British Isles. The main anomaly centres a +8mbar over SE Greenland -7mbar in the Russian Arctic -7mbar over northern Quebec -3.5 mbar over Ukraine -3mbar over the Mediterranean Basin Over the British Isles pressure anomaly ranges from zero in the Channel Islands and Kent to +4.5mbar at Stornoway. The anomalous flow is NE-ly. CET (after Manley) 3.9°C (-0.3 degC wrt 1971-2000) CET (after Hadley) 3.8°C (-0.4 degC) and by this measure it was the coldest February since 1996, although over a substantial part of the country February 2003 was colder. E&W Rain: 55.6mm ( 84% of 1971-2000 mean) making it the fourth consecutive drier-than-average February (the total was actually the highest since 2002). It ranks 45th driest in the last 100 years. E&W Sunshine: 67.6 hr (88% of 1971-2000 mean) making it the dullest February by this measure since 1993. In many eastern districts it was the dullest since 1980. CScotT: 4.5°C (+0.9 degC) ScotRain: 53.0mm ( 81%) ScotSun: 70.7 hr ( 94%) NIT: 5.3°C (+0.3 degC) NI Rain: 33.4mm ( 58%) NI Sun: 89.3 hr (119%) Rainfall totals ranged from 152.0mm at Capel Curig (Snowdonia) to 18.0mm at Wick (Caithness). Percentages ranged from 32 at Wick to 162 at Hastings and Herstmonceux (both East Sussex). Sunshine totals ranged from 99.0hr at Malin Head (Donegal) and 91.0hr at Ronaldsway (IoM) - both CS recorders - to 41.9hr at Hunstanton (Norfolk) - also believed to be a CS recorder. Percentages ranged from 140 at Malin Head to 53 at Manston (Kent) - KZ sensor. (c) Philip Eden |
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