Saturday May 5th General Weather Chat

[The PIT]

Cold start with patchy cloud

temp 2.1C

wind NNE F3

Rainfall trace

[GulberwickWeather]

Bright, cold with snow showers

Temp: 0.8C

Dew: -1.1C

Wind Chill: -2.5C

Wind: N @ 6.4kts

Gust: 7.3kts

Pressure: 1003.1hPa (falling)

[Aaron]

Patchy cloud, 1.1C

[Polar Maritime]

Cloudy, odd sunny spell.

Overnight low of -1.8c

Temp 1.9c

Wind Chill -2.7c

Dew Point -9.4c

Borometer 1011mb

Wind N/N/W 10mph

Edited May 5, 2012 by Polar Maritime

[Osbourne One-Nil]

Dropped down to -2.1º here last night but now rocketing back up under a blazing Cumbrian sun to a giddy 2.6º.

[Bottesford]

Down to 3.5c now 8.2c under hazy sunny skies. Hopefully cloud won't ruin this first weekend sunny day I've seen in god knows how many weeks.

[Terminal Moraine]

Cloud cleared overnight and, despite the moderate-fresh NE wind, I recorded the first air frost in May here since 1996 and the coldest May night since 1979.

Currently dry with sunny intervals.

At 0800 g.m.t;

Temp', 3.6c

24 hr max', 7.7c

24 hr min', -0.4c

Grass min', -2.0c

Rainfall in 24 hrs ending 0800 g.m.t, 0.2 mm

Mean wind speed, 15 mph NE

6 oktas Ci and Cu humilis

Vis', 60 km.

[Aaron]

Cloud cleared overnight and, despite the moderate-fresh NE wind, I recorded the first air frost in May here since 1996 and the coldest May night since 1979.

Currently dry with sunny intervals.

At 0800 g.m.t;

Temp', 3.6c

24 hr max', 7.7c

24 hr min', -0.4c

Grass min', -2.0c

Rainfall in 24 hrs ending 0800 g.m.t, 0.2 mm

Mean wind speed, 15 mph NE

6 oktas Ci and Cu humilis

Vis', 60 km.

Shocking, we recorded May air frost in 2010, 2011, and now 2012

[Polar Maritime]

What dates did you record the air frosts Aaron in May 2010&11 ?

[sunsetter]

Overcast but bright and dry. Feeling cold in light NE breeze.

temp 6.5°C

pressure 1007.8mb rising 0.4mb/hr

humidity 79%

dewpoint 3.1°C

wind 4.3mph NE

gust 11.4mph NNE

rain nil

cloud base 1383ft

[Snowangel-MK]

Temperature 7.4 °C

Windchill 7 °C

Dew Point 4 °C

Wind

Speed / Dir 4.8 km/h / 1.3 m/s from NNE

Wind Gust 9.7 km/h

Conditions

Pressure 1009 hPa

Clouds Few 548 m

Moisture

Humidity 81%

Rainfall 0 mm

Dry and bright, shame it's a bit chilly - have a nice bank holiday weekend everyone

[Coast]

7.8°C

1007.5 mb rising 0.4 mb/hr

Wind 9.9 mph gusting 15.0 mph max N/NE

DP 5.5°C

Humidity 85%

2.6mm rain last 24 hours

Cloud base 975 ft

Cloudy and overcast, but it isn't raining - break out the BBQ!!!

[Aaron]

What dates did you record the air frosts Aaron in May 2010&11 ?

May 2010 - 11th

May 2011 - 4th

[Sidsnake]

Dear All, I might be in the wrong forum here but is there going to be frost tonight. Am in Kent... just a bit worried about my nasturtiums and newly planted tomatoes... should i be covering them up. Any thoughts gratefully received. Many thanks.

[Bottesford]

Yes a frost is very likely tonight and I'm bringing in my peppers and covering anything else I can.

See our gardening thread too -

[Polar Continental]

Saturday 05th May 2012:

Cloudy conditions and a few spots of light rain gave way to more broken skies after midnight. The temperature fell quickly and there was a widespread ground frost and a touch of air frost well before dawn, low –0.1c with –2.0c on the grass.

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

Maximum temperature to 18:00 GMT yesterday: 9.7°C

Minimum temperature overnight: -0.1°C

24-hour maximum = 9.7°C

24-hour minimum: -0.1°C

Minimum temperature on grass: -2.0°C

Maximum wind gust: (Midnight to Midnight) 11.1 mph NE

Rainfall total: 0.1 mm

Current Conditions:

6 Oktas: Cumulus mediocris/ congestus, Cirrostratus.

Visibility: about 10 miles

Temperature: 5.9°C

Wind chill 4.0°C .

Humidity: 78.7%

Dew point 2.5°C

Wind Direction: Force 3 NE

Barometer 1012 mb rising slowly.

Yesterday:

Light rain continued until around midnight, the early hours remained cloudy with light drizzle at times. The morning to observation has been overcast, damp under foot. The day remained cloudy with the odd light shower and cold for the most part with just a brief spell of brightness around 14:00 GMT and the temperature managed 9.7c, before quickly falling away back to around 8.5c as the cloud thickened once more. The evening saw a few spots of light rain.

May 2012 so far:

Mean temperature: 9.2c (-2.2c) of the local average)

Maximum temperature: 15.7 on the 2nd

Minimum temperature: -0.1c on the 5th

Grass Minimum: -2.0c on the 5th

Rainfall = 6.7 mm

Wettest 24 hours = 5.6 mm on the 3rd

Maximum wind gust: 19.4 mph ENE on the 1st.

2012 so far

Maximum temperature: 21.4c on the 28th March.

Minimum temperature: -8.9c on the 4th Feb

Grass Minimum: -11.2c on the 4th Feb

Rainfall = 249.5 mm

Wettest 24 hours, 17.2mm on the 4th Jan

Maximum wind gust: 48.6mph, NW 5th Jan

[Bottesford]

Definitely back to normal - currently raining, cloudy and cold. Still it was nice to see a few brief mins of sun again to remind myself what it looks like... ugh.

[Terminal Moraine]

A few fat flakes of snow drifting down at the moment. A work colleague from Buxton reported a light snow shower there earlier this morning too.

[Osbourne One-Nil]

I recorded the first air frost in May here since 1996

I'm always surprised at how "not cold" you are given your elevation. Last year I had two air frosts in May, 2010 I had seven....

[Terminal Moraine]

I'm always surprised at how "not cold" you are given your elevation. Last year I had two air frosts in May, 2010 I had seven....

Unfortunately with regard to minima the elevation works against me. The site is almost at the top of the moor and, apart from in the westerly quadrant, where it's almost flat, the ground slopes steeply away into the valleys and that's where all the cold air ends up.

Added to that it's almost always windy so there's no chance of low temperatures at night due to inversions.

Places like Buxton, at a similar elevation, are surrounded by even higher ground and record much lower minima due to the frost hollow effect

Edit; A light shower of sleet and ice pellets at the moment.

Edited May 5, 2012 by Terminal Moraine

[J10]

Dry this morning with some sunshine, but mostly hazy, warm in the sunshine out of the breeze.

[Polar Maritime]

May 2010 - 11th

May 2011 - 4th

Thanks Aaron, was just curious. As TM has said elevation must be a big player to where air frost's form. Light snow pellets blowing about at the moment.,

Currently 7.4c

Dew Point -1.3c

Wind Chill 2.8c

Wind E/N/E 14 mph

[Backtrack]

No snow seen since December 16th 2011.

11.4C, overcast, boring.

[Richard2901]

Now into the 6th week of unrelenting dross.

Sunny spells during the morning but still the temp remained in single figures and it's turned into a horrid afternoon with mostly cloudy skies and showers of icy rain/ice pellets.

Temp a winter-like 6.3C at the moment following a high earlier of 9.7C. No frost last night due to the wind ruining the chances yet again Min was +0.6C.

[Andy Bown]

A pleasant late afternoon now with increasingly bright sunny spells after some hazy sunny spells earlier in the day, although there were a few light showers first thing as the Cold Front edged South.

12.0c, a fresh NNE breeze and humidity well down on recent days at 69%.