I've seen this "airline notes" field on flight information displays on Travelocity - here's an example URL:

http://dps1.travelocity.com/dparflif...UA&flt_num=251

I did some searches, but can't find out how to decode the notes, which look like this:

ETD .30L LTEQ/1245CT/1345-2000/PROB DLYS/DVRT/CNCL-THUNDERSTORMS+ETA .43L LTEQ+

They seem to differ from airline to airline (these are from United). Anyone in the know on how to decode United's?