President Barack Obama listens to Spencer Ottarson, 19, center, and Julie Xu, 17, right, both from Williamston, Mich., as they explain their 'Offshore Rip Current Alert System (ORCA), Monday, April 22, 2013, during the White House Science Fair
President Barack Obama has had a briefing from two Lansing-area teenagers about their new technology for warning swimmers about dangerous off-shore currents.
19-year-old Spencer Ottarson and 17-year-old Julie Xu represented Williamston High School on Monday as of 12 teams that presented their science projects at the White House's third science fair.
Obama examined their Offshore Rip Current Alert System, which was on display in the East Garden.
Search efforts continue for two swimmers who were caught up Tuesday in rip currents off the coast of Saugatuck. Lake Michigan’s eastern shore has seen strong rip currents this week.
U.S. Coast Guard petty officer Lauren Jorgenson says people swimming in the Great Lakes should be aware of the danger of currents that can pull swimmers away from the beach.
Credit Backcomp.gif: National Weather Service, Wilmington, NC
Rip current mechanism: breakers cross sand bars off the shore, the water travels back to sea through the gap in the sand bars, creating a fast "rip" current
This week, state lawmakers will discuss what can be done to better protect people from rip currents on the Great Lakes. It’s estimated that about 30 people drowned in the Great Lakes last year because of rip currents.
Rip currents form when powerful winds or surges of water press along the shoreline. The water must eventually flow back out. When it does the rip current created can prove too strong for even the best swimmer to escape.