London & South East Cold Spell Discussion

[jojobut]

I see flecks of snow in my light

[Downpour]

Sadly falling as rain here but temp is still 2.2C. You will probably be luckier further east.

Feels cold and sky has gone pink in Ealing, west London. Don't know what that means if anything

[rmc1987]

Na 100% certain you'll get snow.

Just started flurrieying.

Was just going to say I think I can see snow on the jamcam of Bennet Road near Mad Stad.....

[Mikel Nimbus]

It's getting closer (at least I think it is) and I'm hoping for some snow but I feel that I may be let down? Currently I have a temperature of -1.7c, however, I don't know the current dew point! Up the road at Heathrow the temperature is +1c with a dew point of -2c.

This should be good for snow right? As I say I don't know it but can't imagine my dew point would be above 0c

I wasn't sure if there were any other factors to take in to consideration.

Don't worry RMC, the dew point cannot be above your air temperature. That would give over 100% relative humidity which isn't really physically possible. (Correct me if I'm wrong someone please).

Your dew point will be around -2.5/-3 I'd have thought.

[Sno' problem]

Feels cold and sky has gone pink in Ealing, west London. Don't know what that means if anything

I guess you could be a great early warning system for me! Currently the radar shows the ppn being some way off still, but the wind seems to have dropped, so maybe the front will start making some headway.

It ain't half taking it's time though.

[Paul Sherman]

Sadly falling as rain here but temp is still 2.2C. You will probably be luckier further east.

Not here

The Easterly wind is doing it's bit to modify the temps in SE Essex, we are just hovering below 2c and that is Warmer than Central London, sometimes I hate having a Tepid Bath just 6 Miles from my house, ho hum roll on the next Easterly

Night Guys

Paul S

[jojobut]

I guess you could be a great early warning system for me! Currently the radar shows the ppn being some way off still, but the wind seems to have dropped, so maybe the front will start making some headway.

It ain't half taking it's time though.

I would like it to come down lightly heavier than it is so I can goto bed lol

[Paul Sherman]

Don't worry RMC, the dew point cannot be above your air temperature. That would give over 100% relative humidity which isn't really physically possible. (Correct me if I'm wrong someone please).

Your dew point will be around -2.5/-3 I'd have thought.

Totally Right Mikel

Dewpoint cannot be higher than your temperature, it can be equal and that would be luverly FOG!

[chionomaniac]

The snow is very light here but is sticking straight away on cars without any melting which suggests that air temps and DP favourable. In the last few years this type of frontal battle has always been rain here so I am pleasantly surprised.

[Brocken Spectre]

Just a quickie. Anybody from the SE.London/NW.Kent area have any stats so far this winter for no. of snow falling days,

snow lying days, min. temps recorded and other temp. stats.

Would much appreciate if you could post them.

Regards,

Tom.

Not quite from Lee, but I'm only 20 or so down the A20 / A2 from you. The stats are comprehensive and are generated from my Weather Station.

Average and Extremes for Month of January 2010 up to day 12

Average temperature -0.4°C

Average humidity 90%

Average dewpoint -1.9°C

Average barometer 1014.0 mb

Average windspeed 2.4 mph

Average gustspeed 4.6 mph

Average direction 18° (NNE)

Rainfall for month 5.6 mm

Rainfall for year 5.6 mm

Maximum rain per minute 0.2 mm on day 06 at time 14:17

Maximum temperature 5.2°C on day 02 at time 14:06

Minimum temperature -5.9°C on day 07 at time 05:36

Maximum humidity 100% on day 11 at time 13:46

Minimum humidity 72% on day 02 at time 14:42

Maximum pressure 1024.1 mb on day 03 at time 10:44

Minimum pressure 999.1 mb on day 06 at time 03:07

Maximum windspeed 13.8 mph from 00°( N ) on day 09 at time 11:01

Maximum gust speed 23.0 mph from 023°(NNE) on day 09 at time 11:19

Maximum heat index 5.2°C on day 02 at time 14:06

Growing degrees days :0.0 GDD

Frost days 11

Or to look at each individual days stats visit my site here Halling Weather History

Edited January 13, 2010 by Halling Weather

[Pixel]

And for a visual representation....better than watching lamposts INMHO (in my humble opinion)

http://www.met.fu-be...video/bmbf2.mpg

BANG! - just a joy to watch - nature

Weather pro's sure have their heads and hands full

Cheers Halling Weather:)

[Sno' problem]

The ppn seems to be beginning to make some headway now over the past couple of NW radar runs, so things could finally start happening this way...Famous last words eh???

EDIT: And what about that heavy ppn over/near Cherbourg. Where is that meant to be going?

They must have got a bit of a battering there from what it seems.

Edited January 13, 2010 by Sno' problem

[Rob Deacon]

Snowing here now in Peacehaven (east Sussex) for last 10 minutes, settling on cars and frozen roads already.

And i'm only 1 mile inland at 66 meters above sea level

Edited January 13, 2010 by kingdeacon

[Buzzit]

The ppn seems to be beginning to make some headway now over the past couple of NW radar runs, so things could finally start happening this way...Famous last words eh???

Tell me about it - I refuse to go to bed until I get some dam snow - even if it takes all night !

[yamkin]

There will be some heavy snow as the front moves slowly over the SE. Don't be surprised to see the front stall/pivot over the SE before moving North. This is something Steve Murr commented on.

Temp here is 0.5C

[rmc1987]

The ppn seems to be beginning to make some headway now over the past couple of NW radar runs, so things could finally start happening this way...Famous last words eh???

EDIT: And what about that heavy ppn over/near Cherbourg. Where is that meant to be going?

They must have got a bit of a battering there from what it seems.

Yes, looks good from this streaming cam. Although, you can't see the ground you can see the snow falling!

Edit; link http://www.ville-cherbourg.fr/fr/ville_maritime/port_de_plaisance/webcam_port.asp

Edited January 13, 2010 by rmc1987

[john mac]

Temps 0.3c dewpoints -2c humidity 83%

Thingas looking favourable here atm

[Paul Sherman]

Temps 0.3c dewpoints -2c humidity 83%

Thingas looking favourable here atm

Temps 2.2c

Dewpoint -2.0c

Wind ESE 5mph

Things NOT Looking favourable here atm

Ah well at least on my commute into C London tomorrow am I should see some Snow around Upminster etc which always does quite well in these Snowy Breakdowns

Paul S

[snowbob]

There will be some heavy snow as the front moves slowly over the SE. Don't be surprised to see the front stall/pivot over the SE before moving North. This is something Steve Murr commented on.

Temp here is 0.5C

Hi yamkin how long roughly till it arrives here. Wonder if it's worth pulling an all nighter

[yamkin]

Yes, looks good from this streaming cam. Although, you can't see the ground you can see the snow falling!

Edit; link http://www.ville-cherbourg.fr/fr/ville_maritime/port_de_plaisance/webcam_port.asp

You should be getting snow any time now

[rmc1987]

You should be getting snow any time now

Wind has picked up quite a bit!

[yamkin]

Hi yamkin how long roughly till it arrives here. Wonder if it's worth pulling an all nighter

1 - 4 hrs time

[Buzzit]

Dont know whats going on with the NW radar - NE Scotland currently showing 29642mph winds LOL

[snowbob]

1 - 4 hrs time

Ok cheers !

[yamkin]

Bed for me. I'll be up around 5am