WTPQ33 PGUM 232201 RRA

TCPPQ3



BULLETIN

TROPICAL STORM 27W ADVISORY NUMBER 17

NATIONAL WEATHER SERVICE TIYAN GU WP272017

800 AM CHST TUE OCT 24 2017



...TROPICAL STORM 27W MOVING WEST...



CHANGES WITH THIS ADVISORY

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NONE.



WATCHES AND WARNINGS

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A TROPICAL STORM WATCH REMAINS IN EFFECT FOR GUAM...ROTA AND THE

SURROUNDING COASTAL WATERS IN THE MARIANA ISLANDS.



SUMMARY OF 700 AM CHST...2100 UTC...INFORMATION

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LOCATION...10.3N 144.1E



ABOUT  220 MILES SOUTH-SOUTHWEST OF GUAM

ABOUT  275 MILES SOUTH-SOUTHWEST OF ROTA

ABOUT  340 MILES SOUTH-SOUTHWEST OF TINIAN

ABOUT  350 MILES SOUTH-SOUTHWEST OF SAIPAN

ABOUT  285 MILES NORTHWEST OF SATAWAL

ABOUT  395 MILES WEST-NORTHWEST OF ULUL

ABOUT  405 MILES NORTHWEST OF PULUWAT

ABOUT  120 MILES NORTH-NORTHWEST OF FARAULEP

ABOUT  245 MILES EAST OF FAIS

ABOUT  305 MILES EAST OF ULITHI



MAXIMUM SUSTAINED WINDS...40 MPH

PRESENT MOVEMENT...WEST...280 DEGREES AT 13 MPH.



DISCUSSION AND OUTLOOK

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AT 700 AM CHST...2100 UTC...THE POORLY DEFINED CENTER OF TROPICAL

STORM 27W WAS LOCATED NEAR LATITUDE 10.3 DEGREES NORTH AND LONGITUDE

144.1 DEGREES EAST...MOVING WEST AT 13 MPH. TROPICAL STORM 27W IS

EXPECTED TO TURN TO A NORTHWEST TRACK LATER TODAY THROUGH WEDNESDAY

WITH AN INCREASE IN FORWARD SPEED. THIS FORECAST TRACK TAKES 27W

SOUTHWEST OF GUAM AND NORTHEAST OF FAIS EARLY THIS AFTERNOON.



MAXIMUM SUSTAINED WINDS HAVE DECREASED TO 40 MPH. HOWEVER, TROPICAL

STORM 27W IS STILL EXPECTED TO RESUME SLOW INTENSIFICATION THIS

AFTERNOON. ONCE 27W GETS INTO THE PHILIPPINE SEA, IT SHOULD INTENSIFY