My best guess is that what's shown here is just warm air ahead of a front, but I don't know gravity waves well. From what I understand they are rare localized events. Anyone else have comments? Herbert K Lowenstein wrote: > Jess, > Attached file is (I think !) of the gravity wave event in the > mid-Atlantic. Was this on 1/3/98? If not, give me the date and I'll > re-check this graph. Unfortunately, a few key hours didn't record, but > you can see the steep rise in temps from midnite to 4 am. Wasn't sure > if you have a special page yet for this event (I sent you some text > describing the event earlier as observed at my home in Columbia, Md. The > graph is from NW Wash, DC.). > > Herb Lowenstein c/o > Mid-Atlantic Wx Station > > ------------------------------------------------------------------------ > [Image] [Can't send Image to List: Uploaded to http://www.weatherwatchers.org/temp/grav_wav.gif] -- ============================================================== Jesse Ferrell - Meteorologist/Web Dev. - j{at}weatherwatchers.org Central Atlantic Storm Investigators - www.weatherwatchers.org "They're not who we're looking for; they're just meteorologists- storm chasers." --Peter Watts, "Millennium" || ICQ No. 136832 ||