Monday 20 February 2012

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Monday 20 February 2012

Postby PhilipEden » 2012 Feb 20, 10:51


0900z 210° 6kn 28km 3Sc060 6Ci250 COTRA 02.8/-02.0 1032.5

Last 24h
Lodge: max 5.3 min -5.4 grass -8.9 rain nil sun(CS) 9.0 (Instromet) 7.7
Observatory: max 5.3 min -1.7 grass -11.5 rain nil

Posts: 45
Joined: 2012 Jan 27, 18:23
Location: Whipsnade, Bedfordshire 229m

Re: Monday 20 February 2012

Postby Richard Hunt » 2012 Feb 20, 11:00

Cold overnight but dry. Wind increasing.

20 FEBRUARY 2012 --- 0900 UTC ---

Current Air Temp: 2.3c
Grass Minimum: -4.2c
Relative Humidity: 84%
Dewpoint: -0.1c
Soil Temp (30cm): 3.8c
Barometric Pressure: 1027.2 mb
Pressure Trend: -0.3 mb/hr.
Cloud Cover: 4/8.
Wind Speed: 14 MPH.
Wind Direction: SW.
Maximum Gust: 22 MPH.
Rainfall Today: 0.0mm.
Rainfall Last 24hrs: 0.0mm.
Rainfall This Month: 14.4mm.
Rainfall This Year: 38.4mm.
COL Station: 25020.

Watson W-8681 AWS. Standard Stevenson Screen. Maximum and Minimum screen thermometers. Grass minimum thermometer.
5" Copper standard rain gauge. Roof mounted annemometer.
Richard Hunt
Posts: 374
Joined: 2012 Jan 27, 19:23
Location: Hornsea, East Yorkshire. 10m AMSL

Re: Monday 20 February 2012

Postby Roland Marshall » 2012 Feb 20, 12:16

Hi All

0900 obs

Weather:- Sunny 5 oktas cloud Some dark clouds
Dry bulb 3.2c Wet Bulb 1.9c Humidity 78% 24hr Max 5.5c 24hr Min 0.8c Grass Min -2.3c Barometer 1028.0
Wind 3 mph SW Sunshine yesterday 8.62 hrs Max gust yesterday 23 mph Current electronic temp 1215 7.2c
24hr rainfall to 0900 0.0 mm

Hull North
Roland Marshall
Posts: 37
Joined: 2012 Jan 29, 07:35

Re: Monday 20 February 2012

Postby Martin Rowley » 2012 Feb 20, 13:26

... (20 FEB 2012/~1200Z): I know it's not very exciting in the grand scheme of things, but for around 10 minutes ~1200Z, we had sight of a *complete* 22deg halo here. Usually, the halo is fragmented, or there's other cloud in the way etc., but the Cs nebulosus streaming around the upper ridge was at that time exactly true to its description - uniform veil with no striations etc., and the halo, though weak (and therefore white) was complete. No other optical phenomena seen.

After a decent frost first thing (air minimum -4.8°C), we're up to 9.4°C now. (Note sheltered garden so maxima especially out of kilter with 'standard' site).

Martin Rowley
West Moors, East Dorset [ altitude: 17 m/56' ]
NGR SU 082 023: postcode BH22 0GB
50deg49min15secN, 01deg53min03secW
Martin Rowley
Posts: 154
Joined: 2011 Nov 25, 12:54

Re: Monday 20 February 2012

Postby Paul Carfoot » 2012 Feb 20, 14:56

Monday 20th February 2012:

Frost lifted overnight as it turned cloudy before midnight, though it stayed dry. At observation, rather cloudy, bright spells, dry.

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

Maximum temperature to 18:00 GMT yesterday: 6.0°C
Minimum temperature overnight: -1.0°C
24-hour maximum =6.0°C
24-hour minimum: -1.0°C
Minimum temperature on grass: -4.8°C
Maximum wind gust: (Midnight to Midnight) 28.1 mph. WNW
Rainfall total: 0.0 mm

Current Conditions:

5 Oktas: Stratocumulus, Cirrostratus..
Visibility: 8 - 10 miles.
Temperature: 1.7°C
Wind chill –1.7°C .
Humidity: 80%
Dew point –-1.4°C
Wind Direction: Force 3 SW
Barometer 1030 mb Falling slowly.


Clear at times, though a couple of showers overnight produced a little sleet and hail. There was also a continuous fresh, at times strong north-westerly wind which prevented the temperature from falling to low, still a frost though, low -0.4c with –3.3c on the grass. At observation, clear and sunny, frost, icy patches with traces of hail and graupel pellets. The day stayed fine and dry with good sunny spells. Top temperature 6.0c. clear at first through the evening with a widespread frost developing.
Paul Carfoot
Posts: 135
Joined: 2012 Feb 09, 07:27
Location: Stanton, Burton on Trent, Staffs UK.

Re: Monday 20 February 2012

Postby Nick Gardner » 2012 Feb 20, 19:22

A cold, bright start with a sharp frost. Then progressively hazy and the sunshine more limited by the afternoon.

Min = -3.6°C
Max = 9.2°C
Rain = 0.0 mm.
Sunshine = 4.2 hours.

A warmer evening than of late with broken cloud/haze and a few stars shining.

(19:22), 5.8°C, RH 84%, DP 3.2°C, 1031 hPa (Steady), Wind 3 mph SSW.
Near Newton Poppleford, Sidmouth - Devon
50:41N 3:17 W; 20 metres AMSL; Station Grade B-BAAA37
Nick Gardner
Posts: 429
Joined: 2012 Jan 27, 17:25
Location: Rural riverside valley location near the village of Newton Poppleford and 2 km from the sea.

Re: Monday 20 February 2012

Postby Neil Johnson » 2012 Feb 20, 19:35

A generally cloudy day, with some spells of sunshine, temperature was already above freezing by 7.00AM (Low-2.8C) due to invading cloud cover.


Temp:5.4C (max 7.6C)
Baro:1027.2mb steady

Neil Johnson,

Midsomer Norton.
Neil Johnson
Posts: 45
Joined: 2012 Jan 28, 10:41
Location: Midsomer Norton northern edge of the Mendip Hills 129mts

Re: Monday 20 February 2012

Postby Len Wood » 2012 Feb 20, 20:19

Max 9.6C
Min -1.5 C

24 hr rain to 1800z

Only the 9th air frost of the winter and the last I hope, although this is very hopeful as we usually get one in March and the latest I have ever recorded here is 26th April 1989.
Records begin in 1986.

Wembury, SW Devon coast
N50.33 W4.13
Altitude 83 m asl
Len Wood
Posts: 349
Joined: 2012 Jan 28, 16:12
Location: Wembury, coastal SW Devon, 83 m asl

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