While boat was at anchor on Lake Amistad a dust storm with gusts up to 60 mph and waves 8 - 10 feet  caused vessel to lose anchor and was pushed to shore.  The two individuals in the boat stayed with the boat overnight until they could be rescued by helicopter the next day.  It took the owner/operator 3 days to return to the sight of his stranded boat.  The storm had caused his engine to be underwater for 3 days and all of the interior of the boat, (seats, parts, supplies) were washed away by the storm.  Injuries were mild hypothermia and minor scrapes and cuts.
Del Rio                       