Hi Jack,
This issue has been resolved starting with the 2023-07-27 07z
cycle (link). Something inside the NBM v4.2 Oceanic MSLP
percentile GRIBs produced by the Blend changed recently that resulted
in erroneously low values when we convert the files into GeoTIFFs for
WSUP. The fix was to use a different set of wgrib2 options.
Cheers,
Kevin McGrath
WSUP Team