000 ABPZ20 KNHC 041132 TWOEP TROPICAL WEATHER OUTLOOK NWS NATIONAL HURRICANE CENTER MIAMI FL 500 AM PDT SUN SEP 4 2016 For the eastern North Pacific...east of 140 degrees west longitude: A large area of showers and thunderstorms continue in association with an elongated area of low pressure located just off the coast of southwestern Mexico. Upper-level winds are forecast to become more conducive for development, and a tropical depression is expected to form later today or Monday while the disturbance moves slowly northwestward, parallel to the southwestern coast of Mexico. Regardless of whether or not development occurs, the system is already bringing very heavy rains and gusty winds to southwestern Mexico, and these conditions are likely to continue for the next couple of days. Total rainfall amounts of 5 to 10 inches with isolated totals up to 15 inches are possible across the southern Mexico states of Oaxaca, Guerrero, Michoacan, Colima, Jalisco, and Nayarit. These rains could produce life-threatening flash floods and mud slides, especially in areas of mountainous terrain. Interests in these areas as well as the Baja California peninsula should monitor the progress of this disturbance. * Formation chance through 48 hours...high...80 percent * Formation chance through 5 days...high...90 percent An area of low pressure could form in a couple of days about thousand miles southwest of the southern tip of the Baja California peninsula. Development, if any, of this system should be slow to occur while the low meanders. * Formation chance through 48 hours...low...near 0 percent * Formation chance through 5 days...low...20 percent Another area of low pressure is expected to form later this week several hundred miles south or southwest of Manzanillo, Mexico. Some gradual development of this system is possible after that time while it moves generally westward. * Formation chance through 48 hours...low...near 0 percent * Formation chance through 5 days...low...20 percent $$ Forecaster Cangialosi