An explanation, as given by Simon Parkes;

apparently there was a plan (that had to be changed) but the plan was for Pres. at midnight last night to make an address to people with Mike Pompeo was to do 30 minute release on twitter, then every 15 minutes, then every 10 minutes, then every 5 minutes .., like a count down.

I suppose if he starts tweeting every 15 minutes, we should start paying very close attention

https://www.simonparkes.org/post/10th-january-update