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TROPICAL STORM MARTY INTERMEDIATE ADVISORY NUMBER   3A
NWS NATIONAL HURRICANE CENTER MIAMI FL       EP172015
700 AM CDT SUN SEP 27 2015

...MARTY STRENGTHENING AS IT MOVES SLOWLY NORTHWARD...


SUMMARY OF 700 AM CDT...1200 UTC...INFORMATION
----------------------------------------------
LOCATION...14.6N 103.0W
ABOUT 265 MI...425 KM SW OF ACAPULCO MEXICO
MAXIMUM SUSTAINED WINDS...60 MPH...95 KM/H
PRESENT MOVEMENT...N OR 5 DEGREES AT 6 MPH...9 KM/H
MINIMUM CENTRAL PRESSURE...997 MB...29.44 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, 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 700 AM CDT (1200 UTC), the center of Tropical Storm Marty was
located near latitude 14.6 North, longitude 103.0 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 60 mph (95 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 997 mb (29.44 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 complete advisory at 1000 AM CDT.

$$
Forecaster Beven

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