The text of Brainard's testimony was released earlier, key headlines:
And, full text is here:
Brainard will be appearing before the US Congress' Committee on Financial Services, U.S. House of Representatives, Washington, D.C.
- at midday Washington time, which is 1600 GMT
As far as I can tell Brainard is the only Fed official speaking publicly Thursday. Sometimes others do pop up unannounced though.