I've gotten phone calls and emails wondering whether the recent tornado in downtown Atlanta and the damage reported will affect the gathering. This morning I placed a call to the Georgia World Congress Center (GWCC) and was told that as of today, they are only canceling events for this week and that a new update will be released on Friday, March 21st.
You may visit http://www.gwcc.com/ to read their March 16 update, but there really isn't much more information.
I'll place another call on Friday - stay tuned.
UPDATE: Reader Linda Z. pointed out that FIRST also has a notification page here.