Team GO Rocket Disruption event

The movement of the Team GO Rocket Leaders seems to have disrupted Pokémon habitats, and certain Pokémon have apparently become more common! 

From November 7, 2019 at 1:00 pm PST until November 14, 2019 at 1:00 pm PST:

• Oddly specific Pokémon have started appearing more often, like Ekans, Meowth, and Koffing! 
• You may encounter a Shiny Meowth in the wild or in raids!
• Raids will feature Pokémon that we believe are significant to Team GO Rocket and the Team GO Rocket Boss, Giovanni!
• Team GO Rocket has started using the following Shadow Pokémon: Sandshrew, Bellsprout, Magnemite, Porygon, and Wobbuffet.
• The Team GO Rocket Leaders seem to be the only Team GO Rocket members who now have access to the following Shadow Pokémon: Meowth, Scyther, and Sneasel!