Day 96 saw the NSIDC publish two sets of data for Antarctica. One was a sudden huge jump and the later one was a big drop.
Here is day 97:
UPDATE 2: They updated the data, at 3:22 down to 5.786 (which is a 300,000 sq km drop from the day before. Not likely.
On day 96 the Antarctic sea ice extent took an unlikely jump from 6.082 million sq km to 7.959.
Sometimes they correct it the next day. Sometimes they don’t.
UPDATE: The “stuttering” in the daily Antarctic image. (Thanks AZ1971)