Hurricane Andres turned westward and strengthened rapidly into a Major Hurricane on Sunday.  At 11:00 p.m. EDT on Sunday the center of Hurricane Andres was located at latitude 15.3°N and longitude 119.2°W which put it about 800 miles southwest of the southern tip of Baja California.  Andres was moving toward the west at 6 m.p.h.  The maximum sustained wind speed was 140 m.p.h. (220 km/h) which made Andres a Category 4 hurricane on the Saffir-Simpson Scale.  There were gusts to 165 m.p.h. (265 km/h) and the minimum surface pressure was 943 mb.   Andres became only the fifth Major Hurricane to form over the Eastern North Pacific during the month of May.

By turning toward the west Hurricane Andres remained over water where the Sea Surface Temperature (SST) was 27°C.  The westward movement also minimized the vertical wind shear.  The combination of warm SST and little vertical wind shear produced rapid intensification.  Andres could remain over warm SSTs for another day or so.  Eventually it will encounter cooler water, which will be unable to supply enough energy to maintain its current intensity.  There are stronger upper level winds west of Andres and those will increase the vertical wind shear over the hurricane.  Cooler SSTs and more shear will weaken Andres during the coming week.

A strengthening ridge steered Andres toward the west on Sunday.  Another upper level trough will approach the ridge during the next few days.  The trough is likely to weaken the ridge and cause Andres to turn more northward again.  Track guidance from the numerical models diverges later in the week and the uncertainty increases at longer time periods.

The atmosphere over the tropical Eastern North Pacific Ocean remains active with two hurricanes and a tropical storm.  Karina re-intensified into a hurricane about 1400 miles east of Hawaii.  It is moving slowly to the northeast as it is drawn into the large circulation around tropical storm Lowell.  Although the atmospheric conditions are allowing it to maintain hurricane force winds at the moment, it will encounter less favorable conditions as it moves farther north.

Tropical Storm Lowell is slowly spinning down about 1000 miles west of Baja California.  Lowell is moving slowly northwestward over cooler Sea Surface Temperatures (SSTs).  The SSTs are cool enough that Lowell is only generating lower clouds and it has not produced any deep thunderstorms in recent hours.  Lowell could be reclassified as a non-tropical low later today or tomorrow.  Lowell has a large circulation and it will take it a few days to spin down completely.

Hurricane Marie is intensifying rapidly about 330 miles south-southwest of Manzanillo, Mexico.  It currently has a maximum sustained wind speed of 85 m.p.h. and it could become a major hurricane during the next day or two.  Marie has a large well organized circulation and upper level divergence is well established over it.  It is expected to move northwestward parallel to the west coast of Mexico.  Marie is the 13th named tropical cyclone and 8th hurricane of the Eastern North Pacific 2014 season.