612 
WTPZ31 KNHC 300853
TCPEP1

BULLETIN
Tropical Storm Sergio Advisory Number   4
NWS National Hurricane Center Miami FL       EP212018
400 AM CDT Sun Sep 30 2018

...SERGIO CONTINUES TO STRENGTHEN WELL OFFSHORE THE SOUTHWESTERN
COAST OF MEXICO...
...EXPECTED TO BECOME A HURRICANE LATER TONIGHT...


SUMMARY OF 400 AM CDT...0900 UTC...INFORMATION
----------------------------------------------
LOCATION...12.0N 104.3W
ABOUT 485 MI...780 KM S OF MANZANILLO MEXICO
MAXIMUM SUSTAINED WINDS...50 MPH...85 KM/H
PRESENT MOVEMENT...W OR 270 DEGREES AT 12 MPH...19 KM/H
MINIMUM CENTRAL PRESSURE...1001 MB...29.56 INCHES


WATCHES AND WARNINGS
--------------------
There are no coastal watches or warnings in effect.


DISCUSSION AND OUTLOOK
----------------------
At 400 AM CDT (0900 UTC), the center of Tropical Storm Sergio was
located near latitude 12.0 North, longitude 104.3 West. Sergio is
moving toward the west near 12 mph (19 km/h) and this general
motion is expected for the next couple of days with a turn toward
the west-northwest possible on Tuesday.

Maximum sustained winds have increased to near 50 mph (85 km/h) with
higher gusts. Additional strengthening is forecast during the next
72 hours, and Sergio is expected to become a hurricane by tonight
and be near major hurricane strength on Tuesday.

Tropical-storm-force winds extend outward up to 125 miles (205 km)
from the center.

The estimated minimum central pressure is 1001 mb (29.56 inches).


HAZARDS AFFECTING LAND
----------------------
None.


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

$$
Forecaster Stewart