Negating false positive/problems from larger LJDA scales.

May22nd 0009Z

With the image above I just wanted to show that sometime the LJDA can combine storms and trigger a larger sigma warning than seems realistic. Especially when the storms seem to barely touch on radar. In this case it was a 2-3 Sigma jump in Yellow which would prep the forecaster to think about warning.

This false positive can be fixed by overlaying a smaller scale LJDA over a larger one to potentially split the storms and break the sigma back down to a more realistic approximation that would not trigger a reason for warning (after suspecting it to be a false positive).

Grant H.

 

Tags: None