ZCZC MIATCPEP3 ALL
TTAA00 KNHC DDHHMM

BULLETIN
Tropical Depression Eighteen-E Advisory Number   1
NWS National Hurricane Center Miami FL       EP182017
400 PM CDT Sat Sep 23 2017

...NEW DEPRESSION FORMS NEAR THE SOUTHWESTERN COAST OF MEXICO...
...TROPICAL STORM WARNINGS ISSUED...


SUMMARY OF 400 PM CDT...2100 UTC...INFORMATION
----------------------------------------------
LOCATION...18.4N 105.3W
ABOUT 75 MI...125 KM WSW OF MANZANILLO MEXICO
ABOUT 140 MI...225 KM S OF CABO CORRIENTES MEXICO
MAXIMUM SUSTAINED WINDS...35 MPH...55 KM/H
PRESENT MOVEMENT...NNW OR 335 DEGREES AT 5 MPH...7 KM/H
MINIMUM CENTRAL PRESSURE...1005 MB...29.68 INCHES


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

The government of Mexico has issued a Tropical Storm Warning from
Manzanillo northward to El Roblito, including the Islas Marias.

SUMMARY OF WATCHES AND WARNINGS IN EFFECT:

A Tropical Storm Warning is in effect for...
* The southwestern coast of Mexico from Manzanillo northward to El
Roblito, including the Islas Marias

A Tropical Storm Warning means that tropical storm conditions are
expected somewhere within the warning area, in this case within the
next 24 to 36 hours.

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


DISCUSSION AND 48-HOUR OUTLOOK
------------------------------
At 400 PM CDT (2100 UTC), the center of Tropical Depression
Eighteen-E was located near latitude 18.4 North, longitude 105.3
West. The depression is moving toward the north-northwest near 5 mph
(7 km/h), and this general motion is expected to continue for the
next couple of days.  On the forecast track, the depression is
expected to pass near or just offshore of the southwestern coast of
Mexico tonight into Monday.

Maximum sustained winds are near 35 mph (55 km/h) with higher gusts.
Some strengthening is expected during the next 48 hours, and the
depression is forecast to become a tropical storm by tonight.

The estimated minimum central pressure is 1005 mb (29.68 inches).


HAZARDS AFFECTING LAND
----------------------
RAINFALL: The depression is expected to produce total rain
accumulations of 3 to 6 inches with possible isolated maximum
amounts of 15 inches over the western portions of the Mexican states
of Michoacan, Colima, western Jalisco and Nayarit.  This rainfall
could cause life-threatening flash floods and mudslides.

WIND: Tropical Storm conditions are expected to begin within the
southern portion of the warning area this evening, and gradually
spread northward along the Mexican coast on Sunday and Monday.


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

$$
Forecaster Stewart

NNNN