Guam - In addition to a High Surf Advisory that continues through this weekend, residents and tourists are advised to be aware of Portuguese man-of-war that have been observed at Asan Beach. 

According to National Park Service staff, the blue bottle stinging jellyfish washed ashore at Asan Beach.  The jellyfish can cause serious injury and intense pain requiring medical attention. 

The National Park Service has recommended that visitors and tourists stay out of the water.