Hurricane Blanca was the earliest recorded tropical cyclone in the calendar year to make landfall on the Baja California Peninsula. Forming as the second named storm, hurricane, and major hurricane of the annual hurricane season, the system first developed into a tropical depression on May 31. The storm initially struggled to organize due to strong wind shear, but once this abated, the system took advantage of high sea surface temperatures and ample moisture. After becoming a tropical storm on June 1, Blanca rapidly intensified on June 2–3, becoming a powerful Category 4 hurricane on the Saffir–Simpson hurricane wind scale; maximum sustained winds reached 145 mph (230 km/h) at this time. The hurricane's slow motion resulted in tremendous upwelling of cooler water, resulting in a period of weakening. Blanca gradually recovered from this and briefly regained Category 4 status on June 6 as it moved generally northwest toward the Baja California peninsula. Cooler waters and increased shear again prompted weakening on June 7 and the system struck Baja California Sur on June 8 as a weak tropical storm. It quickly degraded to a depression and dissipated early the next day. Category 4 hurricane: peak winds of 145 mph (125 knots), lowest pressure 936 mb. May 31 – June 9, 2015. Landfalls: June 8 at 50 mph, 24.3°N 111.7°W; June 8 at 45 mph, 24.5°N 111.8°W; June 8 at 35 mph, 26.6°N 113.0°W. Accumulated cyclone energy: 20.8. Wiki link Track: NOAA National Hurricane Center, HURDAT2 best track EP022015 (public domain).