Meteogram Questions
 

Hi all,

I was wondering if anyone could tell me what charts comprising the meteogram
listed below are representing. I've only found explanations for meteograms
that have fewer/different fields in them. In particular, I'm looking for
what the 1000-500mb thickness, lifted index, SLP, and 2m RH mean, and how
they'd be useful. Thank you!

The meteograms are located here, they all have the same fields:
http://www.geofffox.com/meteogram.php

- Kyle

Meteogram Questions
 

On Sun, 07 Dec 2003 19:10:01 GMT,
Kyle , in
wrote:

+ I was wondering if anyone could tell me what charts comprising the meteogram
+ listed below are representing. I've only found explanations for meteograms
+ that have fewer/different fields in them. In particular, I'm looking for
+ what the 1000-500mb thickness, lifted index, SLP, and 2m RH mean, and how
+ they'd be useful. Thank you!

+ The meteograms are located here, they all have the same fields:
+ http://www.geofffox.com/meteogram.php

Caveat: these are model forecast meteograms.

1000-500 mb thickness: this is proportional to the temperature of that
layer, with the 540 dm value being considered the magic snow/no snow
value.

Lifted Index (LI): an index of atmospheric stability. Often used to
gauge the potential for severe weather.

SLP: Sea level pressure. Shows the passage of pressure systems.

2m RH mean: the mean relative humidity (ugh) at 2 meters. Shows
low-level moisture. IMHO, you'll be better off looking at the 2m
temperature and dew point, but I don't like RH. YMMV.

HTH.

James
--
Consulting Minister for Consultants, DNRC
I can please only one person per day. Today is not your day. Tomorrow
isn't looking good, either.
I am BOFH. Resistance is futile. Your network will be assimilated.

Meteogram Questions
 

Kyle:

Kyle wrote:
I was wondering if anyone could tell me what charts comprising the meteogram

Just as an FYI, the correct term is "meteorogram"...otherwise, we'd probably
be called "meteologists" ;-)

The term "meteogram" was apparently coined by the developer of the WXP
software package many years ago, because (in his words) he hates typing.
It has (unfortunately, IMHO) become widely used over the years...but it is
still not (yet) in the Glossary of Meteorology...

tom

--
Tom Whittaker
University of Wisconsin-Madison
Space Science & Eng. Center

Meteogram Questions
 

Thank you to everyone, I really appreciate it! Great newsgroup if you ask me
=)


- Kyle