000 ABPZ20 KNHC 201130 TWOEP TROPICAL WEATHER OUTLOOK NWS NATIONAL HURRICANE CENTER MIAMI FL 500 AM PDT SUN SEP 20 2015 For the eastern North Pacific...east of 140 degrees west longitude: Showers and thunderstorms associated with an area of low pressure located about 175 miles west of the southern tip of the Baja California peninsula are showing some signs of organization, however, satellite wind data indicate that the circulation remains elongated and lacks a well-defined center. This system still has the potential to become a tropical depression today while it moves north-northwestward or northward at 10 to 15 mph, and interests in the Baja California peninsula should monitor its progress. The low will be moving over cooler waters and into an area of strong upper-level winds tonight, which should lessen the chance of tropical cyclone formation. Regardless of development, moisture associated with this disturbance is expected to produce heavy rains across portions of the Baja California peninsula and northwestern Mexico today, and over portions of southern California and Arizona on Monday and Tuesday. These rains could produce life-threatening flash floods and mud slides, especially in mountainous areas. * Formation chance through 48 hours...high...70 percent * Formation chance through 5 days...high...70 percent $$ Forecaster Brown