Typhoon Mangkhut is on its way for Guam on Monday September 10, 2018 and it will bring 50+ mm of Rain and it will bring Big Waves Crashing the Beaches and Shores Including Hagatna and it will be a Big Waves Crashing the Beaches and Shores and it will bring Flooding and it will Cause the Power Outages and it will be a ton of Rain in Guam Especially