FORT LAUDERDALE, Fla., March 17 (UPI) -- U.S. scientists say a phenomenon called an "extreme supermoon" could create abnormally high tides as the moon makes its closest approach to Earth in 18 years.
Experts say the moon will appear 10 to 15 percent larger than normal and could create high tides from Friday through Sunday that might bring beach erosion and minor shoreline flooding, the South Florida Sun-Sentinel reported Thursday.