de ruim boven normale windschering in dat gebied (zie link voor de kaarten), met name de Caribbean
The Climate Forecast System is calling for even stronger vertical wind shear during August through October in the Caribbean and across the tropical Atlantic now than it was one month ago. Stronger vertical wind shear tears apart #hurricanes as they're trying to form.
https://twitter.com/i/status/1024784134177087488
https://twitter.com/philklotzbach/status/1024338430228979712