8 PM Tuesday update: NHC is monitoring 2 areas with development potential over the Atlantic.
1) A tropical wave SW of the Cabo Verde Islands has a high chance of formation over the next 48 hours
2) A gale-force non-tropical low W of the Azores has a medium chance of formation pic.twitter.com/qgXOi8WVke— National Hurricane Center (@NHC_Atlantic) September 21, 2021