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Tropical Storm MARTY


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BULLETIN
TROPICAL STORM MARTY ADVISORY NUMBER  12
NWS NATIONAL HURRICANE CENTER MIAMI FL       EP172015
1000 AM CDT TUE SEP 29 2015

...MARTY WEAKENS WHILE MEANDERING OFF OF THE COAST OF MEXICO...


SUMMARY OF 1000 AM CDT...1500 UTC...INFORMATION
-----------------------------------------------
LOCATION...16.2N 101.6W
ABOUT 105 MI...165 KM S OF ZIHUATANEJO MEXICO
ABOUT 120 MI...195 KM WSW OF ACAPULCO MEXICO
MAXIMUM SUSTAINED WINDS...60 MPH...95 KM/H
PRESENT MOVEMENT...ESE OR 120 DEGREES AT 3 MPH...6 KM/H
MINIMUM CENTRAL PRESSURE...996 MB...29.42 INCHES


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

None.

SUMMARY OF WATCHES AND WARNINGS IN EFFECT:

A Tropical Storm Warning is in effect for...
* Acapulco to Lazaro Cardenas

A Tropical Storm Watch is in effect for...
* West of Lazaro Cardenas to Punta San Telmo

A Tropical Storm Warning means that tropical storm conditions are
expected somewhere within the warning area, in this case within
12-24 hours.

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

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


DISCUSSION AND 48-HOUR OUTLOOK
------------------------------
At 1000 AM CDT (1500 UTC), the center of Tropical Storm Marty was
located near latitude 16.2 North, longitude 101.6 West. Marty is
moving toward the east-southeast near 3 mph (6 km/h).  Little
motion is expected today.  After that, Marty is expected to begin a
slow motion toward the west-northwest tonight and Wednesday.  On the
forecast track, the center of Marty is expected to be near but just
offshore of the southwestern coast of Mexico today through
Wednesday.

Maximum sustained winds have decreased to near 60 mph (95 km/h) with
higher gusts.  Additional weakening is forecast during the next 48
hours, and Marty could weaken to a depression by Wednesday night.

Tropical storm force winds extend outward up to 80 miles (130 km)
from the center.

The estimated minimum central pressure is 996 mb (29.42 inches).


HAZARDS AFFECTING LAND
----------------------
WIND:  Tropical storm conditions are expected within the tropical
storm warning area today and tonight.  Tropical storm conditions are
possible within the watch area by tonight.

RAINFALL:  Marty is expected to produce rainfall amounts of 6 to 12
inches over the Mexican state of Guerrero and 2 to 5 inches over the
state of Michoacan through Thursday.  Isolated amounts of 20 inches
are possible in Guerrero 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.

STORM SURGE:  A storm surge is expected to produce coastal flooding
in areas of onshore flow.  The surge will be accompanied by large
and destructive waves.

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 intermediate advisory at 100 PM CDT.
Next complete advisory at 400 PM CDT.

$$
Forecaster Beven

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