We conducted another long IOP over the Ohio Valley, alternating between the forecast offices in Paducah KY, Indianapolis IN, Louisville KY, and finally Wilmington OH.  The event was characterized by an advancing MCS with a bowed linear structure, and isolated supercells in advance of the line.  Our teams issued a number of Severe Thunderstorm Warnings and a few Tornado Warnings, although there were no official tornadoes reported in the SPC log.  Most of the threat was for severe wind (or barely-severe wind), of which we have only a few possible MRMS products that could help.  In fact, one of the biggest comments we’ve gotten regarding development of new products is to add some MRMS products that can help with severe convective wind warnings.  This might include a mid-altitude radial convergence (MARC) product.

For the GOES-R CI products, there was little help even though most of the area was cirrus free.   The GOES-R folks will be looking at this case as a possible failure mode case.

Greg Stumpf (EWP Weekly Coordinator, 14-18 June 2010)