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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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#1
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Evershot, WDorset: 185m (607ft) amsl
09:00z 07/05/11 13.8°C Max 20.0°C, min 12.1°C Dewpoint 13.2°C RH 96% Wind 0.7 kts ESE 1008.7 hPa Steady Ppn (standard gauge) 10.7mm last 24hrs Ppn (standard gauge) 11.2mm this month Ppn (standard gauge) 30-day rolling total 18.5mm Ppn (AWS) 6.6mm last 24hrs Ppn (AWS) 7.0mm this month Overcast, drizzle, warm, slight breeze Hugh -- Hugh Newbury www.evershot-weather.org |
#2
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"Hugh Newbury" wrote ...
Evershot, WDorset: 185m (607ft) amsl 09:00z 07/05/11 Ppn (standard gauge) 10.7mm last 24hrs Ppn (standard gauge) 11.2mm this month Ppn (standard gauge) 30-day rolling total 18.5mm Ppn (AWS) 6.6mm last 24hrs Ppn (AWS) 7.0mm this month Overcast, drizzle, warm, slight breeze www.evershot-weather.org .... well the 'significant' rain duly arrived as briefly noted last night. Three thundery episodes ... 06/1935Z - 06/2023Z, never particularly spectacular here (though note report of possible weak tornado Christchurch nearby). 06/2112Z - 06/2120Z, thunder heard, several muffled rumbles, again, as above, the activity seemed to be towards the SE or SSE and never overhead; discharge every 10-15 seconds or so, mainly CC/IC, but a couple of bright/vivid CG strokes seen - something like 5 km away to SE which, if striking objects, must have left some impact. 07/0558Z - 07/0630Z (latter time determined by the 10-minute rule): weak, low audio-frequency rumbles fairly near, with short period of moderate/heavy rain around the start of the period, soon becoming slight. Total rainfall in rain-day ending 07/0900Z = 11.2 mm which represents roughly a fifth of our eLTA 1971-2000, useful, but already evaporating readily despite the rather high dew points (13degC). Repeat performance possible this evening I fancy .... Martin. -- Martin Rowley West Moors, East Dorset (UK): 17m (56ft) amsl Lat: 50.82N Long: 01.88W NGR: SU 082 023 |
#3
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On 07/05/11 11:04, Martin Rowley wrote:
.... 07/0558Z - 07/0630Z (latter time determined by the 10-minute rule): weak, low audio-frequency rumbles fairly near, with short period of moderate/heavy rain around the start of the period, soon becoming slight. Martin, what's the 10-minute rule? Total rainfall in rain-day ending 07/0900Z = 11.2 mm which represents roughly a fifth of our eLTA 1971-2000, useful, but already evaporating readily despite the rather high dew points (13degC). Almost identical to here. It was probably the same cloud system passing by. Repeat performance possible this evening I fancy .... I'm sure you're right. It looks like something rather longer, though perhaps intermittent. Hugh |
#4
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![]() Total rainfall in rain-day ending 07/0900Z = 11.2 mm which represents roughly a fifth of our eLTA 1971-2000, useful, but already evaporating readily despite the rather high dew points (13degC). Repeat performance possible this evening I fancy .... Martin. -- Martin Rowley West Moors, East Dorset (UK): 17m (56ft) amsl Lat: 50.82N * Long: 01.88W NGR: SU 082 023 A very welcome spell of rain here as well, Martin, with 14.4mm emptied from the gauge at 0900Z. This makes it the wettest 'rainfall day' this year and represents 24% of the 1981-2010 May average. Dick Lovett Charlbury (Oxfordshire Cotswolds) 122m |
#5
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On 07/05/11 11:04, Martin Rowley wrote:
07/0558Z - 07/0630Z (latter time determined by the 10-minute rule): weak, low audio-frequency rumbles fairly near, with short period of moderate/heavy rain around the start of the period, soon becoming slight. "Hugh Newbury" wrote ... Martin, what's the 10-minute rule? .... sorry Hugh, meant to write it in .... if you can't obviously see that a thunderstorm has passed the 'station' or observing point, then it is considered that the thunderstorm has ceased 10 minutes after the last thunder heard. Martin. -- Martin Rowley West Moors, East Dorset (UK): 17m (56ft) amsl Lat: 50.82N Long: 01.88W NGR: SU 082 023 |
#6
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On 07/05/11 10:10, Hugh Newbury wrote:
Evershot, WDorset: 185m (607ft) amsl 09:00z 07/05/11 13.8°C Max 20.0°C, min 12.1°C Dewpoint 13.2°C RH 96% Wind 0.7 kts ESE 1008.7 hPa Steady Ppn (standard gauge) 10.7mm last 24hrs Ppn (standard gauge) 11.2mm this month Ppn (standard gauge) 30-day rolling total 18.5mm Ppn (AWS) 6.6mm last 24hrs Ppn (AWS) 7.0mm this month Overcast, drizzle, warm, slight breeze Hugh |
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