Requirements
NWS began an experiment in 2004 to use the TOR product to issue Extreme Wind Warnings prior to hurricane landfall. This continued in 2005, with a plan to add a new "EW" VTEC code in 2006. The final decision is to continue with the TOR piggy-backing in 2006 with local addition of EWW bullets. For 2007, and therefore in OB7.2, a new EWW product will be created using the EW VTEC tag.
More detail is in the documents linked below.
Design Review materials
UIWG notes
Other background/requirements information (Word docs)
Statement of Need (background information)
Requirements Review notes (OB7.2 actions)
Relevant E-mail