WTPZ35 KNHC 280258 RRA

TCPEP5



BULLETIN

HURRICANE ROSA ADVISORY NUMBER  12

NWS NATIONAL HURRICANE CENTER MIAMI FL       EP202018

800 PM PDT THU SEP 27 2018



...ROSA BECOMES THE SEVENTH CATEGORY 4 HURRICANE OF THE SEASON...





SUMMARY OF 800 PM PDT...0300 UTC...INFORMATION

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LOCATION...16.9N 116.7W

ABOUT 605 MI...975 KM SW OF THE SOUTHERN TIP OF BAJA CALIFORNIA

MAXIMUM SUSTAINED WINDS...145 MPH...230 KM/H

PRESENT MOVEMENT...W OR 265 DEGREES AT 9 MPH...15 KM/H

MINIMUM CENTRAL PRESSURE...940 MB...27.76 INCHES





WATCHES AND WARNINGS

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THERE ARE NO COASTAL WATCHES OR WARNINGS IN EFFECT.





DISCUSSION AND OUTLOOK

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AT 800 PM PDT (0300 UTC), THE CENTER OF HURRICANE ROSA WAS LOCATED

NEAR LATITUDE 16.9 NORTH, LONGITUDE 116.7 WEST. ROSA IS MOVING

TOWARD THE WEST NEAR 9 MPH (15 KM/H).  A GRADUAL TURN TOWARD THE

WEST-NORTHWEST AND NORTHWEST IS EXPECTED ON FRIDAY, FOLLOWED BY A

TURN TOWARD THE NORTH ON SATURDAY AND A TURN TOWARD THE

NORTH-NORTHEAST ON SUNDAY.



MAXIMUM SUSTAINED WINDS HAVE INCREASED TO NEAR 145 MPH (230 KM/H)

WITH HIGHER GUSTS.  ROSA IS A CATEGORY 4 HURRICANE ON THE

SAFFIR-SIMPSON HURRICANE WIND SCALE.  LITTLE SIGNIFICANT CHANGE IN

STRENGTH IS FORECAST OVERNIGHT, WITH SOME SLOW WEAKENING ANTICIPATED

BY SATURDAY, AND A LARGER DECREASE IN WIND SPEED EXPECTED EARLY NEXT

WEEK.



HURRICANE-FORCE WINDS EXTEND OUTWARD UP TO 40 MILES (65 KM) FROM THE

CENTER AND TROPICAL-STORM-FORCE WINDS EXTEND OUTWARD UP TO 125 MILES

(205 KM).



THE ESTIMATED MINIMUM CENTRAL PRESSURE IS 940 MB (27.76 INCHES).





HAZARDS AFFECTING LAND

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