Skip Navigation Links
NOAA NOAA United States Department of Commerce

Tropical Storm JOHN


ZCZC MIATCPEP2 ALL
TTAA00 KNHC DDHHMM

BULLETIN
Tropical Storm John Advisory Number  18
NWS National Hurricane Center Miami FL       EP122018
800 PM PDT Thu Aug 09 2018

...JOHN CONTINUES TO SLOWLY WEAKEN OVER COOLER WATERS...


SUMMARY OF 800 PM PDT...0300 UTC...INFORMATION
----------------------------------------------
LOCATION...25.5N 119.6W
ABOUT 635 MI...1025 KM WNW OF THE SOUTHERN TIP OF BAJA CALIFORNIA
MAXIMUM SUSTAINED WINDS...60 MPH...95 KM/H
PRESENT MOVEMENT...WNW OR 300 DEGREES AT 14 MPH...22 KM/H
MINIMUM CENTRAL PRESSURE...997 MB...29.44 INCHES


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


DISCUSSION AND OUTLOOK
----------------------
At 800 PM PDT (0300 UTC), the center of Tropical Storm John was
located near latitude 25.5 North, longitude 119.6 West. John is
moving toward the northwest near 13 mph (20 km/h), and this motion
is expected to continue over the next couple of days with a gradual
decrease in forward speed. A turn to the north is expected late
this weekend.

Maximum sustained winds have decreased to near 60 mph (95 km/h) with
higher gusts. Additional weakening is forecast, and John will likely
become a remnant low this weekend.

Tropical-storm-force winds extend outward up to 115 miles (185 km)
from the center.

The estimated minimum central pressure is 997 mb (29.44 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 beginning to reach the coast of southern California and are
expected to continue through Saturday. These swells could
cause life-threatening surf and rip current conditions. Please
consult products from your local weather office.


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

$$
Forecaster Cangialosi/Latto

NNNN