965 
WTPZ35 KNHC 271453
TCPEP5

BULLETIN
Hurricane Rosa Advisory Number  10
NWS National Hurricane Center Miami FL       EP202018
800 AM PDT Thu Sep 27 2018

...ROSA STRENGTHENING AND FORECAST TO BECOME A MAJOR HURRICANE LATER
TODAY OR TONIGHT...


SUMMARY OF 800 AM PDT...1500 UTC...INFORMATION
----------------------------------------------
LOCATION...17.2N 115.4W
ABOUT 530 MI...855 KM SW OF THE SOUTHERN TIP OF BAJA CALIFORNIA
MAXIMUM SUSTAINED WINDS...105 MPH...165 KM/H
PRESENT MOVEMENT...W OR 270 DEGREES AT 12 MPH...19 KM/H
MINIMUM CENTRAL PRESSURE...970 MB...28.65 INCHES


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


DISCUSSION AND OUTLOOK
----------------------
At 800 AM PDT (1500 UTC), the center of Hurricane Rosa was located
near latitude 17.2 North, longitude 115.4 West.  Rosa is moving
toward the west near 12 mph (19 km/h).  This general motion is
expected to continue through tonight, with a slower motion toward
the west-northwest on Friday and toward the northwest Friday night
and Saturday.

Maximum sustained winds have increased to near 105 mph (165 km/h)
with higher gusts.  Additional strengthening is forecast through
Friday, and Rosa is expected to become a major hurricane later
today or tonight.  The hurricane is expected to begin weakening on
Saturday.

Hurricane-force winds extend outward up to 30 miles (45 km) from the
center and tropical-storm-force winds extend outward up to 105 miles
(165 km).  The Mexican Navy automated station on Clarion Island
recently reported sustained winds of 44 mph (71 km/h) and a wind
gust of 57 mph (91 km/h).

The estimated minimum central pressure is 970 mb (28.65 inches).


HAZARDS AFFECTING LAND
----------------------
SURF:  Swells generated by Rosa will affect portions of the coasts
of southwestern Mexico, the southern Baja California Peninsula, and
southern California late this week and over the weekend.  These
swells are likely to cause life-threatening surf and rip current
conditions.  Please consult products from your local weather office.


NEXT ADVISORY
-------------
Next complete advisory at 200 PM PDT.

$$
Forecaster Beven