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BULLETIN
Tropical Storm John Advisory Number  16
NWS National Hurricane Center Miami FL       EP122018
800 AM PDT Thu Aug 09 2018

...JOHN EXPECTED TO PRODUCE HIGH SURF ALONG SOUTHERN CALIFORNIA
COAST LATER TODAY...


SUMMARY OF 800 AM PDT...1500 UTC...INFORMATION
----------------------------------------------
LOCATION...24.5N 117.3W
ABOUT 480 MI...775 KM WNW OF THE SOUTHERN TIP OF BAJA CALIFORNIA
MAXIMUM SUSTAINED WINDS...70 MPH...110 KM/H
PRESENT MOVEMENT...NW OR 305 DEGREES AT 16 MPH...26 KM/H
MINIMUM CENTRAL PRESSURE...990 MB...29.24 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 Tropical Storm John was
located near latitude 24.5 North, longitude 117.3 West.  John is
moving toward the northwest near 16 mph (26 km/h).  A turn toward
the west-northwest with a decrease in forward speed is expected over
the next few days.

Maximum sustained winds are near 70 mph (110 km/h) with higher
gusts.  Steady weakening is forecast, and John is expected to
become a remnant low on Saturday.

Tropical-storm-force winds extend outward up to 140 miles (220 km)
from the center.

The estimated minimum central pressure is 990 mb (29.24 inches).


HAZARDS AFFECTING LAND
----------------------
SURF:  Swells generated by John are affecting portions of the coasts
of southwestern Mexico and the Baja California peninsula. The swells
are forecast to reach the coast of southern California by late
today.  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 Zelinsky

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