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The PIT

Thursday 17th January 2013 - Weather and General Chat

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A very cold start with clear skies

Temp -3.7C

Wind f2 SSW

Rainfall nil

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-3.7°C

1017.9 mb rising 0.3 mb/hr

Wind 0.0 mph gusting 8.7 mph max NW

DP -5.7°C

Humidity 86%

No rain last 24 hours

Cloud base 824 ft

Very frosty, cold and clear with a nice sunrise in progress

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Fog again overnight but clear now with 6/8 Sc and a low of -6.1C

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-8c, cloudy. This is in the town centre!. Was reports on weatherquest twitter of -18c in Norfolk yesterday morning, not sure if this has been confirmed.

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A dry and mainly cloudy night; although there was a short spell with mainly clear skies around midnight before a sheet of Ac moved in from the west.

Currently dry and cloudy with just a sliver of clear sky visible on the east and south eastern horizon.

At 0900;

Temp; -3.0c

24 hr max; -2.0c

24 hr min; -4.6c

Overnight min; -4.5c

Grass ( snow ) min; -8.8c

Rainfall in 24 hrs ending 0900; trace

Mean wind speed, 12 mph S/SE

7 oktas As

Vis', 12 km

Mean depth of lying snow; 6.3cm: 100% cover.

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A cloudy night has prevented a frost even though the low overnight was -3.1°C

Currently -2.5°C and rising

Sun breaking through the cloud

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Thursday 17th January 2013:

Cold and mainly cloudy overnight with severe frost, low –3.9c with –6.5c on the snow / grass. At observation, frosty, overcast, a few light snow flakes falling. still 1cm snow lying 55%

Today's readings for the 24 hrs up to 09:00 GMT:

Maximum temperature to 18:00 GMT yesterday: -2.5°C

Minimum temperature overnight: -3.9°C

24-hour maximum –1.7°C

24-hour minimum: -3.9°C

Minimum temperature on snow / grass: -6.5°C

Maximum wind gust: (Midnight to Midnight) 6.9 mph E

Rainfall total: tr. mm.

Current Conditions:

8 Oktas: Altostratus.

Visibility: moderate, about 7 miles.

Temperature: -1.7°C

Humidity: 91.7%

Dew point –2.9°C

Wind Direction: Force 2-3 SE

Barometer 1018.3 mb: Trend: steady.

Yesterday:

Clear for a time last night, low cloud and patchy freezing fog spread in to the area after midnight. Low –4.1c before the low cloud. At observation, overcast, light snow, producing a light dusting, mist occasionally thickening enough to qualify as freezing fog. Mean snow depth 1cm, 55%. Remaining bitterly cold all day with a falling temperature and the odd light snow flurry. The maximum temperature to 18:00 only managing –2.5c in a brief brighter spell in the middle of the afternoon, though sat around –3.5c for the most part.

January 2013 so far:

Mean temperature: 4.1c (+0.4c) of local average)

Maximum temperature: 12.5c on the 3rd

Minimum temperature: -4.6c on the 16th

Grass Minimum: -9.8c on the 16th

Rainfall 10.7 mm

Wettest 24 hours 5.0mm on the 14th

Maximum wind gust: 24.2 mph W on the 1st.

2013 so far:

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Some sudden temp changes in the valley at home in east Devon associated with with the wind picking up from the direction of the sea then dieing out again:

OutsideTempHistory.gif

The dew point dropped a bit when the temp rose.

Currently at home 5.2C with 61% humidity and -1.7C dew point.

Here in Egham, mostly cloudy, frosty and dry.

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-5C this morning, still at -3.5C now, should be another ice day. The snow cover has turned feathery thanks to the severe frost, and icicles have formed where the snow was thawing on Monday and Tuesday.

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Dry and sunny this morning with a thick hoar frost on most surfaces, though a sheet of altocumulus is slowly advancing from the west. Temperature is a remarkable -3.2C, following a minimum of -5.3C (I think with my back garden being quite enclosed/sheltered it doesn't get as cold overnight as the likes of Topcliffe and Leeming- but the daytime temps are proving comparably low).

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Dry and overcast with very little wind

temp 3.3°C

pressure 1015.9 mb falling slowly

dewpoint 0.9°C

wind 2.3mph SE

rain nil

cloud base 1000ft

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Still below zero here with a sheet of cloud now over me, T=-1.4C and Td=-2.4C, I wonder if I will make a second consecutive 'ice' day?

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Last night was the coldest January night since 1982 here with a minimum temperature of -8.3C. In the last 33 years only two days in January and one day in February have seen lower minimas. Like the previous night it was all the more impressive as the skies were relatively cloudy with patches of thick fog.

It is currently cloudy but dry with the temperature just creeping up to 0.4C. Snowcover remains at around 6cm and 100% cover.

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Weather: Cloudy dry.

Wind: 32mph South East.

Temp: 5c.

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Not much change here since this morning, overcast with a few a few snowflakes floating around, the temperature maxed at 1c for a short time this afternoon.

For those interested I will be on Radio Derby again this evening doing another live interview regarding tomorrow’s snowfall, I will be on around 5:20pm :-)

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