1-minute #GOESEast Infrared images showed Tropical Storm #Rafael as it intensified to a Category 1 Hurricane near the Cayman Islands at 0020 UTC on 06 November. So far, no GLM-observed #lightning has been detected near the core of Rafael. https://t.co/yH8NFkXoPo UW-Madison CIMSS Climate Change Science on Telegram by @ClimateChangeScience A @grttme project - Other backups: @Hallotme