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The PIT

Wednesday 16th January 2013 - Weather and General Chat

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A very cold frosty misty start.

Temp -3.7C

Wind F1 NNE

Rainfall Nil

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Low was -7C, now -5.9C due to slight breeze, freezing fog, feels bitter with a patchy 3cm snow cover.

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Cold and clear with a min temp of -8.1c very icy 100% snow cover.

Current Temp -5.2c

Dew Point -5.6c

Wind Chill -4.9c East 3mph

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misty, -3.8c with a light 1mph N breezer. Another dusting of snow overnight.

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Freezing fog here is depositing snow/ice crystals, needless to say it is a true winter wonderland out there this morning. -5.6C

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-1.4°C

1010.1 mb rising 0.6 mb/hr

Wind 0.0 mph gusting 4.6 mph max N

DP -3.0°C

Humidity 89%

No rain last 24 hours

Cloud base 650 ft

Bright and clear with a thick frost, some mist and freezing fog in places

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It seems to be frosty and cloudy here in Egham, not sure of the temp but Heathrow never gets especially cold and was -1.8C at 7am.

At home in east Devon it's 2.1C after being above 2C virtually all of the night since 10:30pm after a min of -0.6C in the evening. There's one thing missing from this cold spell there, notable cold. It reached 6.7C there yesterday.

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Very cold here,7-30 temperature -7c,no wind with scattered high cloud.

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A cold and mainly clear night although there was a period of thick freezing fog during the early hours and this was when the temperature was at its' lowest. The fog cleared by 0700 and it's currently dry with sunny intervals but still with thick fog in the valleys.

At 0900;

Temp; -4.5c

24 hr max; 0.2c

24 hr min; -5.2c

Grass ( snow ) min; -9.6c

Rainfall in 24 hrs ending 0900; trace

Mean wind speed; 3 mph E

5 oktas Ci

Vis; 8 km

Mean depth of lying snow; 7cm. 100% cover.

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Wednesday 16th January 2013:

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%.

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

Maximum temperature to 18:00 GMT yesterday: 1.5°C

Minimum temperature overnight: -4.6°C

24-hour maximum 1.5°C

24-hour minimum: -4.6°C

Minimum temperature on snow / grass: -9.8°C

Maximum wind gust: (Midnight to Midnight) 13.1 mph ENE

Rainfall total: tr. mm.

Current Conditions:

8 Oktas: Stratus.

Visibility: poor, around 1000 yards

Temperature: -2.9°C

Humidity: 93.4%

Dew point –3.8°C

Wind Direction: Force 2 NE

Barometer 1013.2 mb: Trend: rising slowly.

Yesterday:

Clear spells overnight with a force 3 NW through the early hours. Low –3.3c around dawn as the wind fell light. The temperature on the snow this morning was –7.0c, so a moderate to severe frost. At observation, frosty, a sheet of Stratocumulus has spread over the area from the NW, though still bright with sunshine in the eastern sky. There was a very light flurry of snow from around 10:30 GMT until around lunch time. The afternoon saw sunny spells. Cloud increased during the early evening checking a rapid fall in temperature. A clear sky developed around 19:00 GMT and the temperature quickly fell well below freezing.

January 2013 so far:

Mean temperature: 4.5c (+0.8c) 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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Frost slow to go in the shade.The sun is out. 0.8 ºc.Easterly breeze at 3mph.

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Partly cloudy overnight but still managed to achieve a minimum of -6.7C here, which is the lowest in January at this site since 1987.

It is now mostly cloudy with occasional sunny spells. The current temperature is -0.7C, so still a good chance of an ice day and the lowest maximum again, since 1987.

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-3.6C at the moment here, hoar frost has survived all day, lovely!

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Weather: Cloudy dry.

Wind: 31mph South East.

Temp: 5c.

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An overcast start with a very hard frost after an overnight low on -4.1c.

Variable amounts of cloud during the day with some good sunny spells from late morning until early afternoon.

The wind has been virtually calm all day with a 'high' of -2.4c. Feeling bitterly cold.

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Its still well below freezing here so the first ice day for a little while seems highly likely, not checked my stats; it fell below zero at 1720 yesterday the 'high' today at 1505 of -1.9C and its now dropped to -2.4C. The fog cleared by 1200 with the overcast and mist thinning to 7/8 St at times.

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