Polo has grown into one of the most powerful Pacific cyclones in decades off the coast of Mexico, with a rapid intensification attributed to the warmer waters and wind patterns of El Niño. Another Pacific system, Odalys, also strengthened to a hurricane without threatening land.
A little-known ocean phenomenon linked to El Niño is making its way toward California and could raise Bay Area sea levels by as much as a foot this fall, increasing the risk of coastal flooding across the region. Here's what to know about Kelvin waves.
Human remains were discovered Monday near Crystal Rapids on the Colorado River in Grand Canyon National Park, according to the National Park Service.
Runners in a half marathon in Paramus, New Jersey got more than they bargained for Sunday morning when heavy flooding turned parts of the course into a race through waist-deep water.
Hurricane Lowell was expected to pass near Kauai Monday night.