So what's resulting in #Wanda's track uncertainty? There are a lot of moving players seen ⬇️

Timeline:
1) Deep-layer ridge brings it N
2) Just misses first short-wave trough
3) Narrow ridge draws it back S
4) 2nd more amplified trough finally captures it

plots via @Weathernerds pic.twitter.com/O0g5T7rj7r

— Philippe Papin (@pppapin) November 3, 2021