Today was EWP “Big Wig” day, with visits by OS&T Director Don Berchoff, GOES-R Program Manager Greg Mandt, and NCEP Director Louis Ucellini.  The atmosphere behaved once again, like last year, to provide a severe event over the Washington DC metro area, as well into eastern PA and NJ.  We started by issuing for Mt. Holly NJ (PHI), Sterling (LWX), and State College PA (CTP), although it became apparent that CTP was going to be non-productive so we shut it down.  We used Sterling (LWX) so we could capitalize on the pseudo-GLM data.  It ended up being a low-end severe event, with mostly wind reports for the PHI CWA.

We finally made the change that displays the PGLM data in AWIPS as 8 km grid squares.  But most of the storms in LWX area were marginally severe.

The MRMS data was used mainly by the PHI WFO, and noted that most of the hail numbers were showing a bit high compared to the actual reports.

Greg Stumpf (EWP2010 Operations Coordinator)