WTPZ32 KNHC 081435 RRA

TCPEP2



BULLETIN

HURRICANE JOHN ADVISORY NUMBER  12

NWS NATIONAL HURRICANE CENTER MIAMI FL       EP122018

900 AM MDT WED AUG 08 2018



...OUTER BANDS OF LARGE HURRICANE JOHN PRODUCING LOCALLY HEAVY

RAINFALL OVER SOUTHERN BAJA CALIFORNIA...





SUMMARY OF 900 AM MDT...1500 UTC...INFORMATION

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LOCATION...20.7N 112.3W

ABOUT 215 MI...350 KM SW OF THE SOUTHERN TIP OF BAJA CALIFORNIA

MAXIMUM SUSTAINED WINDS...85 MPH...140 KM/H

PRESENT MOVEMENT...NW OR 320 DEGREES AT 12 MPH...19 KM/H

MINIMUM CENTRAL PRESSURE...979 MB...28.91 INCHES





WATCHES AND WARNINGS

--------------------

THERE ARE NO COASTAL WATCHES OR WARNINGS IN EFFECT.



INTERESTS IN THE SOUTHERN PORTION OF THE BAJA CALIFORNIA PENINSULA

SHOULD MONITOR THE PROGRESS OF JOHN DUE TO LOCALLY HEAVY RAINFALL.





DISCUSSION AND OUTLOOK

----------------------

AT 900 AM MDT (1500 UTC), THE CENTER OF HURRICANE JOHN WAS LOCATED

NEAR LATITUDE 20.7 NORTH, LONGITUDE 112.3 WEST. JOHN IS MOVING

TOWARD THE NORTHWEST NEAR 12 MPH (19 KM/H), AND THIS GENERAL MOTION

IS EXPECTED TO CONTINUE THROUGH THURSDAY.  A TURN TOWARD THE

WEST-NORTHWEST IS EXPECTED BY FRIDAY.  ON THE FORECAST TRACK, THE

CENTER OF JOHN WILL PASS WELL TO THE SOUTHWEST OF BAJA CALIFORNIA

SUR TODAY THROUGH THURSDAY.



MAXIMUM SUSTAINED WINDS HAVE DECREASED TO NEAR 85 MPH (140 KM/H)

WITH HIGHER GUSTS.  WEAKENING IS FORECAST DURING THE NEXT FEW DAYS,

AND JOHN IS EXPECTED TO BECOME A TROPICAL STORM ON THURSDAY, AND

DEGENERATE INTO A REMNANT LOW LATE FRIDAY OR EARLY SATURDAY.



HURRICANE-FORCE WINDS EXTEND OUTWARD UP TO 30 MILES (45 KM) FROM THE

CENTER AND TROPICAL-STORM-FORCE WINDS EXTEND OUTWARD UP TO 115 MILES