WTPZ32 KNHC 060858

TCPEP2



BULLETIN

TROPICAL STORM JOHN ADVISORY NUMBER   3

NWS NATIONAL HURRICANE CENTER MIAMI FL       EP122018

300 AM MDT MON AUG 06 2018



...JOHN RAPIDLY INTENSIFYING OVER THE EASTERN PACIFIC...





SUMMARY OF 300 AM MDT...0900 UTC...INFORMATION

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

LOCATION...15.1N 107.3W

ABOUT 335 MI...540 KM SW OF MANZANILLO MEXICO

ABOUT 565 MI...910 KM SSE OF THE SOUTHERN TIP OF BAJA CALIFORNIA

MAXIMUM SUSTAINED WINDS...60 MPH...95 KM/H

PRESENT MOVEMENT...WNW OR 300 DEGREES AT 8 MPH...13 KM/H

MINIMUM CENTRAL PRESSURE...999 MB...29.50 INCHES





WATCHES AND WARNINGS

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

THERE ARE NO COASTAL WATCHES OR WARNINGS IN EFFECT.





DISCUSSION AND OUTLOOK

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

AT 300 AM MDT (0900 UTC), THE CENTER OF TROPICAL STORM JOHN WAS

LOCATED NEAR LATITUDE 15.1 NORTH, LONGITUDE 107.3 WEST. JOHN IS

MOVING TOWARD THE WEST-NORTHWEST NEAR 8 MPH (13 KM/H) AND A FASTER

NORTHWESTWARD MOTION IS FORECAST FOR THE NEXT FEW DAYS.



MAXIMUM SUSTAINED WINDS HAVE INCREASED TO NEAR 60 MPH (95 KM/H)

WITH HIGHER GUSTS.  JOHN IS FORECAST TO BECOME A HURRICANE LATER

TODAY AND A MAJOR HURRICANE ON TUESDAY.



TROPICAL-STORM-FORCE WINDS EXTEND OUTWARD UP TO 70 MILES (110 KM)

FROM THE CENTER.



THE ESTIMATED MINIMUM CENTRAL PRESSURE IS 999 MB (29.50 INCHES).





HAZARDS AFFECTING LAND

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

SURF:  SWELLS GENERATED BY JOHN ARE EXPECTED TO BEGIN AFFECTING THE

COAST OF SOUTHWESTERN MEXICO DURING THE NEXT DAY OR SO.  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 900 AM MDT.



....

FORECASTER BLAKE