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.