I can find plenty of sites that predict weather but I can't find any that do the same for atmospheric / barometric pressure, I only need to know the week ahead, not months ahead. Does anyone know of anything?
You mean that has a good old weather map with isobars and fronts? The beeb site has that.
Well those old fashioned maps we saw on the telly used to predict the movement of h high and low pressure, but the hard part is to know how fast the air will move between them. Its all to do with heat transfer of course which drives these things and the sea is not always the same everywhere as people used to imagine. Brian
How's this (hit the pressure tab):
I find it a bit clunky but still like it.
Hover to get specific 7 day location forecasts or enter a town name at Get Forecast for a detailed forecast.
You need to look for synoptic charts, but you are being a bit optimistic hoping for a whole week ahead.
I work on the principle that anything up to six hours ahead is almost certainly accurate, up to 12 hours is probably accurate, up to 48 hours has a fair chance of being right and up to 5 days could be a good guide of what to expect, but not to be surprised if it is not.
ISTR that chaos theory, itself a product of weather forecasting, sets an absolute limit of about 14 days on being able to predict the weather.
Colin Bignell
I wouldn't say there's an absolute limit. But I read in some chaos book that if you could instrument the whole planet on a one-foot 3D grid, from the surface up to the top of the atmos, and could precisely measure temp, pressure, humidity, wind direction and speed at each of these grid points, and had a computer capable of getting this data in real time, you could still only predict the weather accurately out to one month.
Obviously a USA chaos book. From almost anywhere they would have specified a 300mm grid. :-)
if no one farted..
Chuckles,,,
Folks should try Tom Sater on CNN
or tha Express Newspaper,,
They seem to have have an inside line on the weather,,,
Seems to have been raining Roundup round my way,,
everything is dying cept grain grass wheat barley,,,
.........
Yer lets feed nine billion...Bananas..
............................
On Monday, August 19, 2013 10:35:09 PM UTC+1, nuther
Wrote
Que Cameron and Owen Patterson's,,,, GMO's...
There is a environmental disaster in process in Dumfriess and Galloway at this time,,,
Not reported ,,,
wonder why,,:::
......................
The experts in forecasting weather are confident enough to predict what's going to happen in 20, 50 and 100 years with climate change.
You mean a 1m grid.
So why can the bloke in the street predict spring and summer bank holidays will be a total washout many years ahead with a higher accuracy than a three day met office forecast?
He can. They always are.
Obviously that is a possibility, but allowing that the grid is around three times the "density" of a metre-based one, I thought 300mm was a reasonable conversion.
Well, 27 times actually.
Have you thought how many extra measurement points would result from a global three dimensional grid at 300mm intervals, rather than at 304.8mm?
Colin Bignell
Yes, but metric countries would not want a "reasonable conversion" from the USA, they would want to use their own unit in their own way.
Weather != Climate.
(Except when you're a warmist, that is.)
HomeOwnersHub website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.