False positive from GREECE?

[Tobi]

Check the attached picture. Lot's of station in the north/west but only two stations in south/east. They are close to the stroke and have a big influence on the result. If the measurements of both where different compared to the other stations, then they can pull (or push) the location in their direction - simply spoken. One of the both stations is a old GREEN one which has different signal type and not so good timing.

Please note that most other strokes from this thunderstorm where correct. False positives are normal.