Synopsis – We have started to see the usual, seasonal increase in the speed of the midlatitude westerlies.  Except in southern California, storms that look interesting in the forecast model simulations weaken as they reach the coast due to the lack of ability to find energy as they approach the coast.  TheEl Niño anomaly is starting to provide enough energy to force troughing over southern California, Baja, and Arizona. However, a robust connection between the subtropical and midlatitude westerlies has not yet occurred.

In the Near-Term - Southern California Avocado Area 10/29 to 11/15…   Recurrent troughing will continue near or over southern California accompanied by a weak southern branch of the westerlies. The latest guidance does not suggest the development of the southern storm track beyond its current intensity, and the longwave trough is starting to focus into Arizona. Showers are possible from frontal remnants in November on the 2nd and 3rd, the 5th, the 10th, and the 13th to 15th.

http://www.californiaavocadogrowers.com/articles/30-day-weather-outlook-october-26-2015-november-26-2015