View Single Post
  #1   Report Post  
Old August 16th 08, 09:41 PM posted to alt.talk.weather
[email protected] roger@dxz7.com is offline
external usenet poster
 
First recorded activity by Weather-Banter: Aug 2008
Posts: 33
Default 1000-500 thickness

Why is the 540 isopleth significant on a 1000-500 thickness chart?