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| Thread ID: 91989 | 2008-07-25 01:08:00 | Barometers | Roscoe (6288) | PC World Chat |
| Post ID | Timestamp | Content | User | ||
| 691928 | 2008-07-25 01:08:00 | Have just inherited two, not new, barometers . One has readings between 26 to 31 (inches?) and the other 28 to 32 . Both read approximately the same, but both readings are always on the "Falls for Rain or Storm" side . Both rise and fall as you would expect but I would have thought that if the weather was a nice day, as is today, both would be on the "Rises for Fair or Dry," but both are (continually) on the "Falls" side . Is there a site where one could find out what the barometric pressure is at the present moment? While I do realise that height above sea level changes that reading, I was not looking for a 100% correct reading, just something that looks more realistic than these two do - not always on the "Falls" side . Adjusting both does not seem to be a problem as they both have a wee screw in the back, but if I am to adjust either, I need to know which way and by how much . Although I do not know my height above sea level (how does one work that out?) it's not all that far above as I live very close to Campbell Rd in Royal Oak, Auckland . I'm certain there are many out there more clever than I . :thanks |
Roscoe (6288) | ||
| 691929 | 2008-07-25 01:26:00 | Have just inherited two, not new, barometers . One has readings between 26 to 31 (inches?) and the other 28 to 32 . Both read approximately the same, but both readings are always on the "Falls for Rain or Storm" side . Both rise and fall as you would expect but I would have thought that if the weather was a nice day, as is today, both would be on the "Rises for Fair or Dry," but both are (continually) on the "Falls" side . Is there a site where one could find out what the barometric pressure is at the present moment? While I do realise that height above sea level changes that reading, I was not looking for a 100% correct reading, just something that looks more realistic than these two do - not always on the "Falls" side . Adjusting both does not seem to be a problem as they both have a wee screw in the back, but if I am to adjust either, I need to know which way and by how much . Although I do not know my height above sea level (how does one work that out?) it's not all that far above as I live very close to Campbell Rd in Royal Oak, Auckland . I'm certain there are many out there more clever than I . :thanks Would this help? . net . nz/weather/Prime . htm" target="_blank">portunus . net . nz |
B.M. (505) | ||
| 691930 | 2008-07-25 01:59:00 | As a long time ago Aucklander, I would say they were both right!! Going to rain!! I was a Westie :blush: :blush: and the saying used to be... "If you can see the Waitakere Ranges, it is going to rain. If you can't see them, it is raining" Doubt if it has changed much. Ken |
kenj (9738) | ||
| 691931 | 2008-07-25 02:42:00 | "weather christchurch" to Google found the Met Service site with Christchurch weather. It told me that the pressure at the airport is 1023 hPa. "weather royal oak" was less useful; Royal Oak, Michigan is there, but they probably have a different pressure. ;) Find the nearest reporting location to you, and set your barometers. A hPa, "hectopascal", is the old miullibar, and one of those is 0.0295 inches of mercury, which your aneroid barometers are marked in. Barometers are a bit like watches: if you've got one you know the time (or pressure). If you've got two, you never know. |
Graham L (2) | ||
| 691932 | 2008-07-25 03:23:00 | The MetService is warning that there is a storm approaching Auckland. The pressure is dropping. Their 12pm reading today was 1016hPa. "He said the air pressure with this system could drop to 967hPa for a time on Saturday which he says is extremely rare for areas near Auckland." |
PaulD (232) | ||
| 691933 | 2008-07-25 03:58:00 | Check these weather conditions out for the next 36 hrs. Not to good. www.metvuw.com :) |
Trev (427) | ||
| 691934 | 2008-07-25 04:49:00 | Both barometers are forecasting the weather accurately. The trick is discovering when they are for. (Maybe up to a year ahead.) You can read the pressures here (www.metvuw.com). Don't worry about your height - just set the barometers to read the pressure given on the Metvuw chart and they are then corrected to show the sea-level pressure, which all the data relates to anyway. (To convert hectopascals to inches of mercury, just divide the hp figure by 33.86) |
R2x1 (4628) | ||
| 691935 | 2008-07-25 05:52:00 | As a long time ago Aucklander, I would say they were both right!! Going to rain!! I was a Westie :blush: :blush: and the saying used to be . . . "If you can see the Waitakere Ranges, it is going to rain . If you can't see them, it is raining" Doubt if it has changed much . Ken Not a lot . If you live in the city, substitute Rangitoto for Waitakere, if you live on the south (poor) side of One Tree Hill (as I do) subsitute Mangere Mountain . R2x1: Thanks for the link . I have adjusted both barometers to their readings and made a calculation thanks to your info . It's that long since I had anything to do with barometers . When I was a wee lad in Wellington we had one on the wall which my father used to tap each day . "Mmmm," he would say but never really let on what the "Mmmm" was for . Trev: It certainly does seem as though it's going to be a good one, although it does not show up on the barometers as yet . B . M . Thanks for that . When I look around I don't seem to be able to find that sort of info . So clever! :blush: Graham: Thanks, mate - I have two . Does that mean I will always be confused? Life is bad enough for us 'small-brains' as it is!:rolleyes: Gentlemen: Your help is most appreciated . I always seem to be able to put any question up on this forum and there is always someone out there who has this sort of information . What a talented lot! :thanks |
Roscoe (6288) | ||
| 691936 | 2008-07-25 06:05:00 | With reference to barometers, "Mmmm" means "It hasn't fallen off the wall yet." Rough rule of someone else's thumb. If the pointer rises when the barometer is tapped, the weather may improve someday. If the pointer falls, the weather will likely take a turn for the worse quite soon. If the barometer falls, SWMBO should be avoided for a few days. |
R2x1 (4628) | ||
| 691937 | 2008-07-25 10:54:00 | Adjusting both does not seem to be a problem as they both have a wee screw in the back, but if I am to adjust either, I need to know which way and by how much . Check the weather map in the Herald each morning until you see a clear isobar lying across across Auckland then adjust both barometers to that value . Precision is not all that necessary, everything is relative and so long as they both read the same, a quick tap on the glass will tell you which way the weather is headed . I have two synchronised barometers by my front door (one I got for my 21st some 3x years go back when television sets ran on steam, and the other my wife bought me one day when she wasn't steaming) and check them regularly . My front door faces west so if I look out and the sky is black but the barometers are rising there's a fair chance the weather will improve . Then I check the Herald map and find out how wrong I am . . . . . . Cheers Billy 8-{) :confused: |
Billy T (70) | ||
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