Friday 16th December 2011 Weather & General Chat

[Dorsetbred]

Mornin' All, currently:

Temp 2.4°C

DP 0.8°C

Rh 89%

Rainfall 11.5 mm

Wind Calm

981.7 mb RISING VERY SLOWLY

Conditions: Wet & overcast

[The PIT]

Try and post again the forum doesn't seem happy today with 504 timeout issues

Dry and cool

Temp 1.5C

Wind variable F2

Patchy Snow Cover

[penicuikblizz]

3 inches of Snow here in Penicuik!! Looks like most of the Central Belt got a good Snowfall

[Isolated Frost]

A band of snow aligned nw-se from rothbury to the north sea lingering north to me... but it's misty and very frosty, -0.8c.

[SteveB]

Wet cool start,

Temp 2.4c

Humidity 90%

Dewpoint 0.9c

[Rich_Clements]

slight dusting over night, still falling as snow at higher levels, sleet/rain at lower levels 2 degrees and damp

[Snowangel-MK]

Temperature 0.9 °C

Windchill 1 °C

Dew Point 1 °C

Wind

Speed / Dir 1.6 km/h / 0.4 m/s from WNW

Wind Gust 8.0 km/h

Conditions

Pressure 984.0 hPa

Clouds Overcast 60 m

Moisture

Humidity 98%

Snow Depth 2 mm

Snowing quite heavily at the moment and settling, there is a reasonable covering on all untreated surfaces

[johnholmes]

cloudy but dry with little wind, a ground frost earlier but it looks to have cleared now although the temperature is only 1.8C from a low of 0.8C bear midnight

[Coast]

3.3°C

980.2 mb rising 1.2 mb/hr

Wind 6.0 mph gusting 32.2 mph max N

DP 2.4 °C

Humidity 93%

14.6mm rain last 24 hours

Cloud base 422ft

Still dark and very cloudy, not as windy as expected

[BornFromTheVoid]

3.4C, cloudy. Low overnight of 2.8C with occasional snow and sleet showers.

[liam300]

Partialy sleet / snowing here, although its been raining all night so no chance of it laying.. What a waste..

Edited December 16, 2011 by liam300

[Andy Bown]

Sunshine after sleet/wet snow earlier which gave a dusting. 1.4c and humidity 95%.

[leicsnow]

Just starting to snow here!

[i luv snow]

First snow of the year in Ipswich, temps down to 1oC!

[sunsetter]

Sunny and clear here.

temp 1.9°C

wind chill 0.6°C

pressure 983.4 mb rising

dew point 0.3°C

RH 89%

rain 0.5mm

wind 2.3mph N

gust 9.9mph N

outlook unsettled

[Terminal Moraine]

A dry night and a mainly cloudy one. A few very light snow flurries in the past hour have given the thinnest possible scattering of snow and there are still patches of yesterday's snow lying about but not enough to qualify as a morning with lying snow.

Current temp' is 0.1c after a min' of -0.1c and a grass min' of -1.9c

Rainfall in 24 hrs ending 0900, 0.7 mm

Mean wind speed, 18 mph w/nw

7 oktas Cu, Ast and Ci

Vis', 25 km

A few flakes of fine snow falling.

[Methuselah]

Mostly light sleet, breezy and 2C...

[Updraft]

I don't believe it but I just looked out of the window here in East Kent and it is snowing even here at 34m asl. it's fairly wet stuff though and not settling due to the ground being wet.

[Thundery wintry showers]

In relation to the above post, while the ground being wet is a factor, I don't think it's one of the more important factors in determining whether snow will settle. The main ones are the air temperature, the dew point and how heavy the snow is. Often snow falling at temperatures just above the 1 degree mark fails to settle, especially if it is only light to moderate, because the flakes are typically starting to melt already as they reach the ground. Heavy snow with temps below 1C and dewpoints below 0C will almost invariably settle.

Currently 0.6C at Cleadon with light snow, following a spell of heavy snow earlier which deposited 1-2cm on the ground. This band actually fell as rain here between 1 and 3am despite temperatures only reaching a max of 1.5C, but has turned back to snow as it retreated southwards. The minimum was -1.0C recorded at 10pm last night.

[Polar Continental]

Friday 16th December 2011:

Cloudy overnight after an initial clear start with a touch of groundfrost. Only a few light spots of rain and sleet, as only a trace left in the rain gauge. Low 1.4c with –0.5c on the grass. The morning to observation has been overcast with a just a few spots of light sleet.

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

8 Oktas: Stratocumulus.

Visibility about 1 mile.

Temperature: 1.9°C

Humidity: 90.8%

Dew point 0.6°C

Wind Direction: Force 2-3 NW

Barometer: 986mb rising slowly.

Maximum temperature to 18:00 GMT yesterday: 6.5°C

Minimum temperature overnight: 1.4°C

24-hour maximum = 6.5°C

24-hour minimum: 1.4°C

Minimum temperature on grass: -0.5°C

Rainfall total: tr mm

Yesterday:

Clear spells gave way to cloud and light rain moving in from the west after midnight. Low before the rain was 1.4c with –2.4c on the grass, so a widespread ground frost. At observation, overcast with light rain, feeling cold and raw in the fresh NW wind. Brighter conditions arrived from the west around 11:00 GMT though with the odd light shower around, top temperature 6.5c. A clear evening followed with ground frost forming.

[Isolated Frost]

Now 1.0c and rising... snow shrs on and off all day, 2cm lying. Melting slowly under drizzle and higher temperatures.

[Snowyowl9]

Had around 1 inch of snow the min temp was 0.1c it`s been thawing since as the W/NW wind has picked up bringing the atlantic air back in and snow showers also but currently wasn`t sticking at 1.3c,now it`s sticking as it`s heavier.

[Terminal Moraine]

Light snow showers and sunny intervals this morning. A thin temporary snow cover from some of the showers but none of them lasting long enough, or heavy enough, for anything significant and the main action about 20 miles to the north west.

Current temp' is 0.5c with sunny intervals and 6 oktas Ci and Cu.

[reef]

An overcast morning followed by some clearances during the afternoon but little in the way of any sunshine. It has been mainly dry aswell apart from some light rain before midday. Rather cold however with a max temp of 3.1C but yet again we missed out on the first air frost of the season with a min of 1.1C.

Currently 2.4C and 92% humidity. 0.2mm of rain so far.

Theres a few showers approaching but the dewpoint is 1.1C, so they'll likely be rain or sleet.

[Kent Snow]

2.6C, broken cumulus, cool, wind from the W, 991hPa.