Shunter
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Posts posted by Shunter
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Zonal wind speed at 60’N increased to 28.6 at midnight. This was forecast and could indicate why NWP is showing such strength in the Jet stream. The good news is that this will fall like a stone from today to a possible reversal around the 28th. This should severely deflate energy in the jet stream around the New Year. The question is whether the models have factored this in?
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The 06z Op shows a small improvement at T72 with better ridging to the NW and a defined contour bringing the aforesaid Easterly draw across southern areas on Xmas Eve. That should dry the ground out a bit following days of rain.
With the projected wind reversal still showing around 25th , i would ‘take a punt’ on future runs showing an increased number of colder scenarios around 3rd Jan as the downwelling progresses.
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40 minutes ago, ICE COLD said:
Where is Mr Murr ???
He was last seen giving CPR to a snowflake in New Ash Green !
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The NSIDC site shows Arctic Sea Ice for 26th November being at a 10year high...…
http://nsidc.org/arcticseaicenews/charctic-interactive-sea-ice-graph/
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1 hour ago, Wimbledon88 said:
Cooler air already moving in from the south east. Hopefully clearer aswell
The forecast earlier this week was for a maximum of 14c today, yesterday this reduced to 12c and today it actually 10c ........Lets hope this trend continues.
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Been a thoroughly miserable wet/ damp day in the Thames Estuary. Rain on and off all day. Looks like a small depression developed and remains stationary over the area ( about 70 miles in diameter ). Rain today map shows it rotating nicely.
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Temp 7.1c DP 3.9c. Steady
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Thick fog, slow thaw. Temp 1.4c. DP -1.1c
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On 26/02/2018 at 22:15, John Michael How said:
Moderate Snow here now. 4/10. Temp -1.1c. dP -4.9c
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The heavier echoes are moving in a NW direction making landfall now in Lydd area. Following the same track would expect areas inside Canterbury to Rochester to be sweet spot this afternoon with only moderate bursts either side ( that's for Kent ).
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Ashford and Canterbury should see Snow in next 15 minutes.
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5 minutes ago, Cat Clark said:
“Stuff” falling Folkestone
Netweather radar showing darker echoes approaching Hythe, Folkestone, Lydd areas west to Brighton now. Should intensifiy whatever is falling. Radar shows it as Snow.
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Drizzle has now turned to snow grains and intensifying. Everything seems to be going white again.
Temp -1.7C
DP -6C
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9 minutes ago, colboy said:
Thought I would advise anyone whose boilers have suddenly stopped it could be your outside pipe from the boiler has frozen up stopping the water from draining away. Pour hot water over it and it should free it up. Hopefully.
Still snow grains coming down here in Sidcup. Still -2.5c here.
Dozens of people reporting this with condensing boilers. Just locate the white pipe at the bottom of the boiler and follow it the outside, heat the pipe with warm water or hair driver and reset the boiler.
Ours stopped last night. We have British Gas emergency cover but were unable to contact them !!
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Snowing now here. 1st shower of the evening.
We going under Amber warning in 10 mins too.
T -7.5c
dp -9.5c
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snowing heavily here again now.......local roads almost impassable......valley drive, thong lane, A2.
We abandoned car and walked home the last mile or so as traffic was at a standstill
Approx 15cms of laying snow.
Temp was 1c but now back to -1C in Snow.
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4-5 inches of snow here. Massive shower whilst driving from Godstone to Gravesend. Had to abandon car at A2 East as roads blocked by stuck cars !
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6 minutes ago, Isabellesnanny said:
Beeb London forecast just said 8/10 degrees by Sat/Sunday, is that likely, seems to go against everything I have read.
That’s probably based on the 0z runs this morning. Watch tomorrow night
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6 minutes ago, Honey said:
Woah ! The blob that hit Southend is doing a grand job here in north kent 'cliffe' medway !
Lovely thick covering
Yep....just caught the Western edge of it in Gravesend too. we now have the slightest covering. Seems to swing South towards Maidstone / West Kingsdown after here.
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4 minutes ago, Shunter said:
have good view from loft ( crows nest ). Can see past Dartford Crossing into Canary Wharf and sky looks clear to the West. Looking North East towards Canvey it looks foggy so could be a sign of incoming shower. East looks cloudy but can see broken cloud towards Medway.
The "Fog" is a shower. Wind has got up too. 4 on SM Scale.
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have good view from loft ( crows nest ). Can see past Dartford Crossing into Canary Wharf and sky looks clear to the West. Looking North East towards Canvey it looks foggy so could be a sign of incoming shower. East looks cloudy but can see broken cloud towards Medway.
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Just now, Southender said:
Beautiful Steve. Solid 8/10. A good 2cm now
seems to peter out as it crosses the Thames........just a few flurries this side
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big blob near Burnham on Crouch has Gravesends name on it.
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would appear that medway to Orpington is the Eastern limit. Hit and miss here even when under a pink blob.
Temp -1.6C
DP -7.9C
Wind is Northerly too ?
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Hunt For Cold: Model Discussion - Heading Into Christmas
in Spring Weather Discussion
Posted
A couple of questions ..
Does anybody have historical knowledge of how quickly a raging jet stream deaccelerates when a SSW occurs?
And does the warming itself create inertia that slows it down, or does the Jet just “freewheel” until it loses its energy?