RedactedNarrative: On July 21, 2018, I Game Warden was on patrol aboard my patrol vessel with Game Warden on Lake Mead.  National Park Service (NPS) Rangers were combing the shorelines for any people in distress due to a large storm that just passed through the area.  NPS asked for my assistance, requesting me to check the shorelines from Callville Bay to the south.
  
       I drove to Callville Bay and followed the shoreline around to the south.  At approximately 1328 hours I pulled into Lovers Cove and observed two swamped vessels on the shoreline and a large group of people on shore.  I approached and contacted owner of one of the vessels.  He told me everyone was safe and uninjured and requested assistance getting his group back to Callville Bay.
  
       His vessel was on the beach swamped, nearly fully submerged, and was inoperable.  12 women and children boarded my vessel, all wearing PFD''s, and I transported them to the Callville Bay courtesy dock.  A friend picked up the remaining individuals from the shore and transported them to the Callville Bay Courtesy dock as well.
  
       Later that day, Tow Boat USA/Vessel Assist recovered the vessel and turned it over.
  
       Operator explained that he saw a large thunderstorm building and attempted to gather their belongings that were on the beach.  Operator pulled his vessel, bow first, onto the beach and had everyone disembark to help load the vessel in an attempt to load up and make it back to the marina.  Operator stated the storm rolled in too fast and they were unable to seek shelter.  The wind and waves picked up very quickly and the waves crashed over the stern of his vessel swamping it.  He estimated the waves to be about 6 feet high.
  
       On August 10, 2018, I contacted Progressive Insurance who forwarded me a copy of the estimate for repairs.  (attached)