Complex sentence: Shortly before landfall, the storm's convection sheared to the north, causing its low level circulation to fully expose followed by the JTWC issuing its final bulletin, reporting that the storm had weakened due to land interaction.
Split into simpler sentences: Shortly before landfall the storm's convection sheared to the north, causing its low level circulation to fully expose. The JTWC issued its final bulletin, reporting that the storm had weakened due to land interaction.