Sunday Evening Update
NHC's changed their philosophy on the last update and did not upgrade the depression. Reasoning was due to lack of ability to find a surface low.
Since about the last hour or two, a very well defined surface low is apparent on the satellite imagery, especially on the loop. The surface low is centered southwest of Zihuatanejo. No doubt this has been a tropical storm today. Upper air winds are starting to expose the low and it is getting very close to the coast. So it is possible that "Elida" will never get named if it moves inland. Flooding rains and mudslides in Mexico still pose a big problem.TropicalWeather.net's Tropical Pic