Any of you who live along the coasts of the US have barographs to measure air pressure?
Typically, standard wind measuring equipment (such as Davis, for example) would probably not hold up in a near miss at landfall, but I would love to have a barograph trace of a storm that did that.
Have a barograph trace of the most powerful winter storm in 23 years back in Illinois when the pressure fell to 28.88" on a WINTER day as the storm moved over the region.
Just curious.
Pressure Measurements
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azskyman
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Pressure Measurements
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azskyman
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Isobar...if that glass swan starts spitting across the room, then you are VERY close to a VERY bad storm!
I have a barograph here in Phoenix. Not nearly so fun as when I turned it loose back in Illinois.
Pressure swings here are minor..even in big storm events. Once in a while I'll see a little spike or drop, but for the most part it is as uneventful as our weather itself.
I have a barograph here in Phoenix. Not nearly so fun as when I turned it loose back in Illinois.
Pressure swings here are minor..even in big storm events. Once in a while I'll see a little spike or drop, but for the most part it is as uneventful as our weather itself.
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I have an Oregon Scientific IR wirelesss system..full dig to the laptop and mobile thru PCS w GPS
It would indeed hold..the old anenometer with structural 'cups' are good to 100+kt and the Dig intake to 140kt
Problem is setting the rotating mast up to 3 meters for a decent inbound wind read to 3min continuous
Gusts over 150kt are just too much for any system
HpA measurement in MB are no problem if the sensor is clear and callibrated properly to asl msl altitude
I use an aircraft/marine type Raytheon unit
It would indeed hold..the old anenometer with structural 'cups' are good to 100+kt and the Dig intake to 140kt
Problem is setting the rotating mast up to 3 meters for a decent inbound wind read to 3min continuous
Gusts over 150kt are just too much for any system
HpA measurement in MB are no problem if the sensor is clear and callibrated properly to asl msl altitude
I use an aircraft/marine type Raytheon unit
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Stormsfury
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During Hugo, yes, I had a barometer, however, I didn't even bother to remember to look at it ... however, it had pegged down to 27.75" according to the lowest marker reading I saw afterwards.
Last edited by Stormsfury on Mon Jun 02, 2003 7:32 pm, edited 1 time in total.
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chadtm80 wrote:Where would one go to get a cheap pressure meter?
Chad,
A few yrs ago.I found a Davis Unit on sale at Radio Shack for 19 bucks..dig readout..reg price was 89.95
Try online http://www.wxstore.com
Interesting site
HA HA!!!!!!They have a nice copy of my Dig Baro ..110bucks..not bad!
Last edited by Arizwx on Mon Jun 02, 2003 7:38 pm, edited 1 time in total.
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azskyman
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I had a meteograph for about 7 years too. It had three pens for recording temperature, humidity, and pressure. I found it to be cumbersome and not so accurate, but it did a great job of matching up those three parameters to an approaching gust front or wind shift line. I suspect that if one survived the eyewall of a hurricane it would paint a dramatic picture of the events that transpire.
Some of the instruments you can get through Davis, LaCrosse Scientific, Oregon Scientific and Radio Shack are ok for measuring pressure but hard to calibrate.
I loved my Rainwise system too, and the LED displays were fun to watch all around the room. My ship's mercurial barometer is still hanging on the wall here in my office. It is about 34" long and is a standard for watching pressure changes. But the truth is...when a storm is going on outside, the last thing you want to do is watch a non-recording device (other than anemometer readings, of course).
Some of the instruments you can get through Davis, LaCrosse Scientific, Oregon Scientific and Radio Shack are ok for measuring pressure but hard to calibrate.
I loved my Rainwise system too, and the LED displays were fun to watch all around the room. My ship's mercurial barometer is still hanging on the wall here in my office. It is about 34" long and is a standard for watching pressure changes. But the truth is...when a storm is going on outside, the last thing you want to do is watch a non-recording device (other than anemometer readings, of course).
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Southernmost Weather
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Every now and then you can find a barograph or a meteograph on eBay. However, they are not inexpensive by any stretch of the imagination. Those who are selling them know what they've got and are not letting them go for peanuts. I've seen them for about $600. Wish I had the coinage... would love to have a barograph!
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