Hi, all – With this high-shear / low-CAPE event starting to wind down, I wanted to post some screen grabs from earlier this morning, including what looks to be a broken-S signature over our northern CWA. Radar imagery from both KRAX and TRDU (terminal Doppler at RDU) showed weak rotation tightening up a bit over western Person county, along a narrow convective band embedded in the larger pre-frontal rain shield. A portion of this band bowed out concurrent with the very brief strengthening of the velocity couplet. The circulation became broad and diffuse once again on the next scan, although the line itself retained a broken-S signature. We have not yet receive any reports of damage, although this area is pretty rural so any light tree damage might go unnoticed. I did grab some longer loops from both KRAX and TRDU for those interested.
-Gail Hartfield, NWS Raleigh