Here is the number of days of the 10mb wind reversal for each of those SSWs:
— griteater (@griteater) January 4, 2019
84-85: 5 days
98-99: 6 days
01-02: 4 days
In contrast, the current SSW wind reversal could very well last some 12+ days pic.twitter.com/5GuCcjUIwC