The Weather Forecasting Forum

I've been using the ASUS messages sent on NOAAPORT (CODSUS not the high res version). On many of the maps the fronts will plot but suddenly DA will draw a vector right off the map. Other examples produce fronts that zigzag but the source data looks good when I look at it visually and plot it by hand. Any ideas what might be causing this?
http://pfefferspray-security.de/ / http://seo-first.de/

I remember having some minor glitches like that with the low res front file back when I used it ... off the net. Why use the low res? The higher res is really much better.