TC #Amphan has intensified to 140kt, making it an equivalent category 5 hurricane.

The latest IR view is stunning, but a recent GPM 89GHz microwave pass reveals a dry moat & secondary wall forming; a harbinger of an eyewall replacement cycle likely halting further strengthening. pic.twitter.com/hOQrMlkyux

— Philippe Papin (@pppapin) May 18, 2020