EAST PACIFIC STORM INVESTIGATION 91E

Its odd to see disturbances tracking east in the east Pacific instead of west.  Invest 91E is doing just that.  See below NHC post.
RTW

Ralph's Tropical Weather RTW

National Hurricane Center 

ZCZC MIATWOEP ALL
TTAA00 KNHC DDHHMM

Tropical Weather Outlook
NWS National Hurricane Center Miami FL
1100 AM PDT Fri May 17 2019

For the eastern North Pacific...east of 140 degrees west longitude:

1. Disorganized showers and thunderstorms located a few hundred miles
south of the southern coast of Mexico are associated with a weak and
elongated area of low pressure.  Gradual development of this system
is possible during the early and middle part of next week while the
disturbance moves little.
* Formation chance through 48 hours...low...near 0 percent.
* Formation chance through 5 days...low...30 percent.

Forecaster Cangialosi

 Courtesy of TROPICAL TIDBITS.COM