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uk.sci.weather (UK Weather) (uk.sci.weather) For the discussion of daily weather events, chiefly affecting the UK and adjacent parts of Europe, both past and predicted. The discussion is open to all, but contributions on a practical scientific level are encouraged. |
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#1
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7 to 13 November 2nd Quarter at: 00:36. Spells with a time of phase at
12 or 6 o'clock generally have cool low overcast in them for most of the week in Britain. However I presume there is a tropical storm building. I fact there looks to be a series generated according to the North Atlantic from T +48 at the time of writing. (Which thanks to British Management actually means Midnight Friday 9 November 2012.) I don't know what that crap over Northern Norway is playing at but the series of small fast flying Lows out of Newfoundland big-up at Iceland. Which is good weather for some of us. At T+72 it starts to break up between Iceland and Scotland -while at Newfoundland, another Low gets ready to take it on. There is a large set of fronts on that chart that look like they are zigzagging to Chile. When they do that it is usually as occluded fronts with lots of pink mice on them. Not today it isn't. We'll see. Note also the parallel fronts on that last pair of charts on today's page. http://www.metoffice.gov.uk/weather/..._pressure.html The Antarctic charts: Today's run shows a series of three major quake /storm conurbations. Let me take you through them. At T + 12 (mid day Wednesday the 7th, (I am using the UTC time-zone)) there is a large, well formed Low at 100 east. It is actually on the Antarctic shoreline -which is not what I am used to but it is summer there now so the sea ice is much less. The disc in it isn't that black. But again, I am not sure if that is due to the different temperatures and topography or just the fact there was a large earthquake in the system. Come back in March and I will tell you. By Thursday, the storm at 140 west is as large as the anticyclone below it. Its centre is less well defined, so it may two or three storms in the same basin or maybe one with two tracks (the sort of thing only discernible by satellite.) On Sunday, t 20 west, the third large system shows up and it remains at that latitude and longitude for the rest of the run. Several dark discs of precipitation show up in these things but I am no longer so sure they are directly related to earthquakes. Through all of this a series of Anticyclones have crossed Australia. To my delight they have all been as ridges hugging the coast but definitely on land. (The ones crossing oceans via America and Africa all stay in the sea.) This should confuse those on uk.sci.weather who insist that ridges and troughs run to their opposites and fill or decline. I have always seen the opposite is true and that likes attract while unlikes repel. Ridges track to anticyclones and do so from west to east. (At least in the Southern Hemisphere it does. I can't say I have ever paid it that much attention until I decided to write about elongations.) |
#2
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On Nov 7, 9:02*pm, Weatherlawyer wrote:
The disc in it isn't that black. But again, I am not sure if that is due to the different temperatures and topography or just the fact there was a large earthquake in the system. Come back in March and I will tell you. The anticyclones in the southern hemisphere suddenly became more motile. All the continents are showing a rapid discharge of their anticyclones from the eastern seaboard to the western ones. The result is that there are going to be less black discs of precipitation showing. What was I expecting in summer? It began last week or even the week before, with the whole system showing massive elongations. Little did I know so little I did know. |
#3
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On Nov 7, 9:02*pm, Weatherlawyer wrote:
7 to 13 November 2nd Quarter at: 00:36. Spells with a time of phase at 12 or 6 o'clock generally have cool low overcast in them for most of the week in Britain. I don't know what that crap over Northern Norway is playing at but the series of small fast flying Lows out of Newfoundland big-up at Iceland. Which is good weather for some of us. JAN MAYEN ISLAND REGION: 2.1 M. 2012-11-10 22:03 71.11 N 8.3 W 2.6 M. 2012-11-08 06:11 71.43 N 9.52 W 2.7 M. 2012-11-07 03:25 71.02 N 7.11 W 2.1 M. 2012-11-04 14:25 71.25 N 8.85 W 2.6 M. 2012-11-04 05:38 70.98 N 6.85 W 2.6 M. 2012-11-03 18:16 70.4 N 7.96 W http://www.emsc-csem.org/Earthquake/...=68&typ=euro#5 I think these should match any Lows off Norway on the appropriate charts. (If I was sensible, I'd look before I post but...) |
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