WTPZ35 KNHC 232031

TCPEP5



BULLETIN

TROPICAL STORM IRWIN ADVISORY NUMBER   6

NWS NATIONAL HURRICANE CENTER MIAMI FL       EP102017

200 PM PDT SUN JUL 23 2017



...IRWIN STRENGTHENS A LITTLE...





SUMMARY OF 200 PM PDT...2100 UTC...INFORMATION

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LOCATION...14.9N 116.6W

ABOUT 705 MI...1135 KM SW OF THE SOUTHERN TIP OF BAJA CALIFORNIA

MAXIMUM SUSTAINED WINDS...45 MPH...75 KM/H

PRESENT MOVEMENT...W OR 270 DEGREES AT 8 MPH...13 KM/H

MINIMUM CENTRAL PRESSURE...1003 MB...29.62 INCHES





WATCHES AND WARNINGS

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

THERE ARE NO COASTAL WATCHES OR WARNINGS IN EFFECT.





DISCUSSION AND 48-HOUR OUTLOOK

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

AT 200 PM PDT (2100 UTC), THE CENTER OF TROPICAL STORM IRWIN WAS

LOCATED NEAR LATITUDE 14.9 NORTH, LONGITUDE 116.6 WEST.  IRWIN IS

MOVING TOWARD THE WEST NEAR 8 MPH (13 KM/H), AND THIS MOTION AT A

SLOWER FORWARD SPEED IS EXPECTED DURING THE NEXT COUPLE OF DAYS.



MAXIMUM SUSTAINED WINDS HAVE INCREASED TO NEAR 45 MPH (75 KM/H)

WITH HIGHER GUSTS.  ADDITIONAL STRENGTHENING IS FORECAST DURING

THE NEXT 48 HOURS, AND IRWIN COULD BECOME A HURRICANE ON TUESDAY.



TROPICAL-STORM-FORCE WINDS EXTEND OUTWARD UP TO 80 MILES (130 KM)

TO THE NORTH OF THE CENTER.



THE ESTIMATED MINIMUM CENTRAL PRESSURE IS 1003 MB (29.62 INCHES).





HAZARDS AFFECTING LAND

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

NONE





NEXT ADVISORY

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NEXT COMPLETE ADVISORY AT 800 PM PDT.



..

FORECASTER BERG