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BULLETIN
TROPICAL STORM MARTY ADVISORY NUMBER   3
NWS NATIONAL HURRICANE CENTER MIAMI FL       EP172015
400 AM CDT SUN SEP 27 2015

...MARTY STRENGTHENING...
...TROPICAL STORM WATCH ISSUED FOR THE SOUTHWESTERN COAST OF
MEXICO...


SUMMARY OF 400 AM CDT...0900 UTC...INFORMATION
----------------------------------------------
LOCATION...14.3N 103.1W
ABOUT 280 MI...450 KM SW OF ACAPULCO MEXICO
MAXIMUM SUSTAINED WINDS...50 MPH...85 KM/H
PRESENT MOVEMENT...N OR 360 DEGREES AT 6 MPH...9 KM/H
MINIMUM CENTRAL PRESSURE...1000 MB...29.53 INCHES


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

The government of Mexico has issued a tropical storm watch for the
coast of Mexico from Acapulco to Lazaro Cardenas.

SUMMARY OF WATCHES AND WARNINGS IN EFFECT:

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

A Tropical Storm Watch means that tropical storm conditions are
possible within the watch area, generally within 48 hours.

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


DISCUSSION AND 48-HOUR OUTLOOK
------------------------------
At 400 AM CDT (0900 UTC), the center of Tropical Storm Marty was
located near latitude 14.3 North, longitude 103.1 West.  Marty is
moving toward the north near 6 mph (9 km/h), and this motion is
expected to continue today.  A turn toward the north-northeast and
northeast with a decrease in forward speed is expected tonight
through Monday night.  On the forecast track, the center of Marty
is forecast to approach but remain offshore the southwestern coast
of Mexico.

Maximum sustained winds have increased to near 50 mph (85 km/h)
with higher gusts.  Additional strengthening is forecast during
the next day or so, and Marty could become a hurricane by tonight.
Weakening is expected to begin Monday night.

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

The estimated minimum central pressure is 1000 mb (29.53 inches).


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

RAINFALL:  Marty is expected to produce rainfall amounts of 1 to 3
inches with isolated maximum amounts of up to 5 inches across the
Mexican state of Guerrero through Tuesday morning.


NEXT ADVISORY
-------------
Next intermediate advisory at 700 AM CDT.
Next complete advisory at 1000 AM CDT.

$$
Forecaster Berg

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