Synoptic Patterns

[reef]

in the winter, i have noticed that the azores high can get up to 1045mb which is extremely strong.

<{POST_SNAPBACK}>

Or higher....

[Bottesford]

1065mb! That'd give a serious headache under that!

[SizzlingHeat]

WOW! whats the highest ever high pressure? That surely must be close

[reef]

The highest air pressure recorded was 1085.7mb at Tonsontsengel, Mongolia on the 19th December 2001. Our good old friend the Siberian high, shame it never moves west

Imagine the headache under that one then.

[SizzlingHeat]

migrane!

[SMU]

The highest air pressure recorded was 1085.7mb at Tonsontsengel, Mongolia on the 19th December 2001. Our good old friend the Siberian high, shame it never moves west

Imagine the headache under that one then.

<{POST_SNAPBACK}>

Soon to be broken this coming Winter by the developing 1090mB Greenland High....

heres hoping.....

S

[SP1986]

the greenland icecaps would be pulverised

[SizzlingHeat]

how about a greenland high linked with the scandi high at 2000mb!

[Bottesford]

how about a greenland high linked with the scandi high at 2000mb! :lol:

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I think the upper atmosphere of Venus might offer such 'delights' but 2 bar on Earth- maybe under the deep oceans...

[reef]

I think the upper atmosphere of Venus might offer such 'delights' but 2 bar on Earth- maybe under the deep oceans...

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A bit of useless information, but in water every 10 metres depth is equivilent to 1 extra bar of pressure. So to feel the pressure of 2 atmospheres, you only have to go 10 meters deep. This is why surfacing quickly from deep underwater causes the bends, the rapid decrease in pressure causes bubbles of nitrogen gas to diffuse out of the blood into the cardiovascular system.

[SMU]

Soon to be broken this coming Winter by the developing 1090mB Greenland High.... :lol:

heres hoping.....

S

<{POST_SNAPBACK}>

I see the 18z is keen to start developing this.....

Steve

Edited August 2, 2005 by Steve Murr

[Anti-Mild]

I see the 18z is keen to start developing this.....

Steve  :lol:

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Great! All we need now is for that set up to occur in mid January!

[kold weather]

0z gives us a high pressure over us in early FI upto 1030mbs,so snshine and warm weather looks increasing likely,although no heatwave like JMA showed!

Towards the end as can be seen on Steve's chart above,we get a northerly from a decent Greenland high,that although does wane a little,it hangs about throughout the forecasted period and never really fades,although the PFJ also hangs about to the north for most of the period as well mind you causing a slight positive NAO.Still nonetheless this Greenland high helps to cool down Greenland pretty well with -10C over eastern greenland,which is a good thing as thats the side of Greenland where we want it to be cold,as most of our northerlies will come from regions close to there.

(ps,Reef,anything the Azores high can do,the Greenland can do better!

[TEITS]

0z gives us a high pressure over us in early FI upto 1030mbs,so snshine and warm weather looks increasing likely,although no heatwave like JMA showed!

Towards the end as can be seen on Steve's chart above,we get a northerly from a decent Greenland high,that although does wane a little,it hangs about throughout the forecasted period and never really fades,although the PFJ also hangs about to the north for most of the period as well mind you causing a slight positive NAO.Still nonetheless this Greenland high helps to cool down Greenland pretty well with -10C over eastern greenland,which is a good thing as thats the side of Greenland where we want it to be cold,as most of our northerlies will come from regions close to there.

(ps,Reef,anything the Azores high can do,the Greenland can do better!

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How I wish I could draw a chart on my wallpaper like that for this winter KW.

[TEITS]

We may never see another 62/63 but could we see another winter like this?

It's possible I say!

[summer blizzard]

I must say, that all of those charts are great, however i prefer the chart from the 1st January 1979.

[Thundery wintry showers]

The 1st January 1979 chart does look impressive. In fact, there would appear to have been almost countrywide snow from that, with the ENE'lys bringing snow to the south and east, and an Atlantic system (with cold RPM air around it) bringing snow to the north and west. They don't make winter synoptics like they used to.

Talking of mid-Atlantic highs, there was an impressive one in February 1988 of a similar nature to January 2003:

However, nothing beats a Greenland High at 1070mb:

As far as easterly setups go, we often hear about the Scandinavian High and draws of air from Russia, but how about this for an easterly setup? There was even snow in the NW from that one!

[summer blizzard]

I must say, they are all great charts, especially the chart from the 7th of January 1985 however i do not like tyhe look of the third chart as much, due to the fact that the Mid-Atlantic High, is a displaced Azores High.

[Thundery wintry showers]

Mid-Atlantic highs that are displaced from the Azores rarely bring much snow, and even when they do, it is usually a transitionary 1-2 day event like at the end of January 2003.

The month of February 1988 probably gave a taste of what was to come during the post-1988 winters- there were a fair number of days that month where the charts looked to be verging on cold and snowy, but the outcome would appear not to have been.

[summer blizzard]

It is my persoanl belief that this winter will feature a return to the "old school" synoptics with many snow events, the word marginal will not be heard this winter in my opinion.

[Rollo]

Sb,you may well be right but not only do we need the right synoptics-we most certainly need some really cold air to stagnate over N Europe and then move west to give us what I would call a classic easterly.

[SP1986]

personally, living in the west, despite the fact I know easterlies can give the west snow from time to time, I have realised with easterly synoptics, the west more than often gets little or nothing but sunshine with an easterly. I would personally welcome a northerly like Jan 58. it stuck around for a few days and allowed troughs to slide down most of the country no doubt.

[Weather-history]

I have realised with easterly synoptics, the west more than often gets little or nothing but sunshine with an easterly.

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What I find for the Greater Manchester area is that they nearly always underestimate the snowfalls that our area gets with an easterly. The forecast would often say the odd snow flurry but we get more than this on most occasions.

25th January 1996 was a good occasion when snow showers made it across the Pennines during the rush hour and the weather forecasters were caught out.

[SP1986]

What I find for the Greater Manchester area is that they nearly always underestimate the snowfalls that our area gets with an easterly.  The forecast would often say the odd snow flurry but we get more than this on most occasions.

25th January 1996 was a good occasion when snow showers made it across the Pennines during the rush hour and the weather forecasters were caught out.

<{POST_SNAPBACK}>

This is true, we got alot more off the easterly of feb 2005 than I though we would get, and to be honest that was a surprise, but we rarely get the frontal snow from an easterly. It would be nice to get quite a few frontal snow events this winter, however the only memories I have of frontal snow are from the north, northwest, and ironically, the southwest.

[summer blizzard]

Did'nt you get any frontal snow at the end of Feburary???????????????