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BULLETIN
TROPICAL STORM MARTY INTERMEDIATE ADVISORY NUMBER   7A
NWS NATIONAL HURRICANE CENTER MIAMI FL       EP172015
700 AM CDT MON SEP 28 2015

...MARTY DRIFTING NORTHWARD...


SUMMARY OF 700 AM CDT...1200 UTC...INFORMATION
----------------------------------------------
LOCATION...15.9N 103.1W
ABOUT 160 MI...255 KM SW OF ZIHUATANEJO MEXICO
ABOUT 225 MI...360 KM WSW OF ACAPULCO MEXICO
MAXIMUM SUSTAINED WINDS...70 MPH...110 KM/H
PRESENT MOVEMENT...N OR 360 DEGREES AT 2 MPH...4 KM/H
MINIMUM CENTRAL PRESSURE...990 MB...29.24 INCHES


WATCHES AND WARNINGS
--------------------
CHANGES WITH THIS ADVISORY:

None.

SUMMARY OF WATCHES AND WARNINGS IN EFFECT:

A Tropical Storm Watch is in effect for...
* Acapulco, Mexico to Lazaro Cardenas, Mexico

A Tropical Storm Watch means that tropical storm conditions are
possible within the watch area, in this case within the next 24 to
36 hours.

A Tropical Storm Warning may be required for portions of the watch
area later this morning.

For storm information specific to your area, please monitor
products issued by your national meteorological service.


DISCUSSION AND 48-HOUR OUTLOOK
------------------------------
At 700 AM CDT (1200 UTC), the center of Tropical Storm Marty was
located near latitude 15.9 North, longitude 103.1 West. Marty is
moving toward the north near 2 mph (4 km/h), and this general
motion is expected to continue this morning.  A slow motion toward
the northeast is expected by later today, and this motion should
continue through Tuesday.  On the forecast track, the center of
Marty is expected to near the southwestern coast of Mexico through
Tuesday but remain offshore.

Maximum sustained winds remain near 70 mph (110 km/h) with higher
gusts.  Little change in strength is expected today, but weakening
is forecast to begin by tonight or Tuesday.

Tropical storm force winds extend outward up to 90 miles (150 km)
from the center.

The estimated minimum central pressure is 990 mb (29.24 inches).


HAZARDS AFFECTING LAND
----------------------
WIND:  Tropical storm conditions are possible within the watch area
by early Tuesday.

RAINFALL:  Marty is expected to produce rainfall amounts of 6 to 12
inches over the Mexican state of Guerrero through Thursday, with
isolated amounts near 20 inches from the Sierra Madre del Sur
mountains toward the coast.  These rains are expected to produce
life-threatening flash floods and mud slides, especially in areas of
mountainous terrain.

SURF:  Swells generated by Marty are affecting portions of the coast
of southern Mexico.  These swells are likely to cause life-
threatening surf and rip current conditions.  Please consult
products from your local weather office.


NEXT ADVISORY
-------------
Next complete advisory at 1000 AM CDT.

$$
Forecaster Kimberlain

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