000 ABPZ20 KNHC 191137 TWOEP TROPICAL WEATHER OUTLOOK NWS NATIONAL HURRICANE CENTER MIAMI FL 500 AM PDT SAT SEP 19 2015 For the eastern North Pacific...east of 140 degrees west longitude: Showers and thunderstorms have become a little more concentrated near an area of low pressure located about 300 miles south- southwest of the southern tip of the Baja California peninsula. However, the low does not appear to have a well-defined center of circulation at this time. Environmental conditions are conducive for development during the next day or so while this system moves north-northwestward at around 10 mph. After that time, colder water and strong upper-level winds should prevent tropical cyclone formation. Regardless of development, moisture from this system is expected to produce heavy rains across portions of the Baja California peninsula and northwestern mainland Mexico through early next week, possibly resulting in life-threatening flash floods and mudslides. * Formation chance through 48 hours...medium...50 percent * Formation chance through 5 days...medium...50 percent $$ Forecaster Berg