000 ABPZ20 KNHC 271137 TWOEP TROPICAL WEATHER OUTLOOK NWS NATIONAL HURRICANE CENTER MIAMI FL 500 AM PDT SUN SEP 27 2015 For the eastern North Pacific...east of 140 degrees west longitude: The National Hurricane Center is issuing advisories on Tropical Storm Marty, located a few hundred miles southwest of Acapulco, Mexico. A broad area of low pressure is expected to form over the next couple of days from a surface trough located about 1000 miles southwest of the southern tip of the Baja California peninsula. Environmental conditions appear conducive for development of this system by the middle of the week while it moves slowly northward or northeastward. * Formation chance through 48 hours...low...10 percent * Formation chance through 5 days...medium...40 percent && Public Advisories on Marty are issued under WMO header WTPZ32 KNHC and under AWIPS header MIATCPEP2. Forecast/Advisories on Marty are issued under WMO header WTPZ22 KNHC and under AWIPS header MIATCMEP2. $$ Forecaster Cangialosi