MIAMI (AP) — Hurricane Dolores remains a major Category 3 storm in the Pacific but is expected to start weakening.
The storm's maximum sustained winds early Thursday are near 115 mph (185 kph) but the U.S. National Hurricane Center says gradual weakening is expected to begin later in the day or Thursday night.
Dolores is centered about 255 miles (410 kilometers) south-southwest of Cabo San Lucas, Mexico, and is moving west-northwest near 7 mph (11 kph).
Swells generated by the hurricane are affecting parts of Mexico's southwestern coast along with the southern coast of the Baja California peninsula. The swells could cause life-threatening surf and rip current conditions.
See NASA photos from the 2015 hurricane season:
NASA satellite hurricane photos from space
Hurricane Dolores expected to weaken in Pacific
AT SEA - OCTOBER 28: In this handout satellite image provided by National Oceanic and Atmospheric Administration (NOAA), Hurricane Sandy, pictured at 00:15 UTC, churns off the east coast on October 28, 2012 in the Atlantic Ocean. Sandy which has already claimed over 50 lives in the Caribbean is predicted to bring heavy winds and floodwaters to the mid-atlantic region. (Photo by NASA via Getty Images)
IN SPACE - SEPTEMBER 11: In this handout satellite image provided by the National Oceanic and Atmospheric Administration (NOAA) and the National Aeronautics and Space Administration (NASA), hurricane Humberto (R) forms as a category one on September 11, 2013 in the far eastern Atlantic Ocean. Humberto is the first hurricane of the 2013 season. (Photo by NOAA/NASA GOES Project via Getty Images)
UNITED STATES - JULY 3: In this handout provided by the NASA, Hurricane Arthur is seen from the International Space Staion as it moves up the U.S. East Coast on July 3, 2014. According to reports, Arthur will continue to strengthen and will reach a category two in strength prior to landfall as early as the evening on July 3. (Photo by NASA via Getty Images)
CARIBBEAN SEA - AUGUST 24: In this handout MODIS satellite image provided by the NASA Goddard Space Flight Center, Hurricane Irene (top center) churns over the Bahamas on August 24, 2011 in the Caribbean Sea. Irene, now a Category 3 storm with winds of 120 miles per hour, is projected to possibly clip the Outer Banks region of North Carolina before moving up the eastern seaboard of the U.S. (Photo by NASA via Getty Images)
IN SPACE - SEPTEMBER 10: In this handout image provided by NASA, Hurricane Ike is seen on September 10, 2008 from aboard the International Space Station (ISS). The center of the hurricane was near 23.8 degrees north latitude and 85.3 degrees west longitude, moving 300 degrees at 7 nautical miles per hour. The sustained winds were 80 nautical miles per hour with gusts to 100 nautical miles per hour and forecast to intensify, according to NASA. The eye of the hurricane is expected to make landfall at Galveston Island early Saturday (13 September 2008) morning. (Photo by NASA via Getty Images)
Archive: South Pacific Storm (NASA, Skylab, 12/02/73)
UNITED STATES - JANUARY 17: This photo of Hurricane Frances was taken by NASA ISS Science Officer and Flight Engineer Mike Fincke aboard the International Space Station as he flew 230 miles above the storm at about 10 am EDT Friday, 27 August 2004. At the time, Frances was about 820 miles east of the Lesser Antilles in the Atlantic Ocean, moving west-northwest at 10 miles an hour, with maximum sustained winds of 105 miles an hour. (Photo by SSPL/Getty Images)
Hurricane Dean photographed from Shuttle Endeavour [1680x1050]
Hurricane Danielle (NASA, International Space Station Science, 08/27/10) [Explored]