000
ABPZ20 KNHC 180534
TWOEP 
TROPICAL WEATHER OUTLOOK
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
1100 PM PDT THU SEP 17 2009

FOR THE EASTERN NORTH PACIFIC...EAST OF 140 DEGREES WEST LONGITUDE..

THE NATIONAL HURRICANE CENTER IS ISSUING ADVISORIES ON TROPICAL
STORM MARTY...LOCATED ABOUT 310 MILES SOUTHWEST OF THE SOUTHERN 
TIP OF BAJA CALIFORNIA.

A SMALL AREA OF LOW PRESSURE LOCATED ABOUT 225 MILES SOUTH OF
MANZANILLO MEXICO IS PRODUCING LIMITED SHOWER AND THUNDERSTORM
ACTIVITY.  ENVIRONMENTAL CONDITIONS APPEAR TO BE FAVORABLE FOR SOME
DEVELOPMENT AS THIS SYSTEM MOVES WEST-NORTHWESTWARD AROUND 10 MPH
DURING THE NEXT COUPLE OF DAYS.  THERE IS A MEDIUM CHANCE...30 TO
50 PERCENT...OF THIS SYSTEM BECOMING A TROPICAL CYCLONE DURING THE
NEXT 48 HOURS.

ELSEWHERE...TROPICAL CYCLONE FORMATION IS NOT EXPECTED DURING THE
NEXT 48 HOURS. 

$$
FORECASTER AVILA