The Storm's minimum central pressure (MCP), actually dropped a bit lower before the pressure bagan rising.
ACUS42 KWBC 161450 SCCNS2
STORM SUMMARY NUMBER 12 FOR CENTRAL/EASTERN U.S. SPRING STORM NWS HYDROMETEOROLOGICAL PREDICTION CENTER CAMP SPRINGS MD 1100 AM EDT MON APR 16 2007(edited~danielw)