Hurricane HILARY Public Advisory

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000
WTPZ34 KNHC 222331
TCPEP4

BULLETIN
HURRICANE HILARY INTERMEDIATE ADVISORY NUMBER   7A
NWS NATIONAL HURRICANE CENTER MIAMI FL       EP092011
500 PM PDT THU SEP 22 2011

...AND YET ANOTHER MAJOR HURRICANE IN THE EASTERN NORTH PACIFIC...


SUMMARY OF 500 PM PDT...0000 UTC...INFORMATION
----------------------------------------------
LOCATION...15.9N 100.3W
ABOUT 75 MI...120 KM SSW OF ACAPULCO MEXICO
MAXIMUM SUSTAINED WINDS...115 MPH...185 KM/H
PRESENT MOVEMENT...WNW OR 300 DEGREES AT 10 MPH...17 KM/H
MINIMUM CENTRAL PRESSURE...960 MB...28.35 INCHES


WATCHES AND WARNINGS
--------------------
CHANGES WITH THIS ADVISORY...

NONE.

SUMMARY OF WATCHES AND WARNINGS IN EFFECT...

A TROPICAL STORM WARNING IS IN EFFECT FOR...
* LAGUNAS DE CHACAHUA MEXICO WESTWARD TO PUNTA SAN TELMO

A TROPICAL STORM WATCH IS IN EFFECT FOR...
* WEST OF PUNTA SAN TELMO TO MANZANILLO

FOR STORM INFORMATION SPECIFIC TO YOUR AREA ...PLEASE MONITOR
PRODUCTS ISSUED BY YOUR NATIONAL METEOROLOGICAL SERVICE.


DISCUSSION AND 48-HOUR OUTLOOK
------------------------------
AT 500 PM PDT...0000 UTC...SATELLITE IMAGES INDICATE THAT THE EYE OF
HURRICANE HILARY WAS LOCATED NEAR LATITUDE 15.9 NORTH...LONGITUDE
100.3 WEST. HILARY IS MOVING TOWARD THE WEST-NORTHWEST NEAR 10
MPH...17 KM/H. THIS GENERAL MOTION IS EXPECTED TO CONTINUE DURING
THE NEXT 24 TO 48 HOURS.  ON THE FORECAST TRACK...THE CORE OF
HILARY WILL CONTINUE TO MOVE PARALLEL TO THE SOUTHWEST COAST OF
MEXICO...BUT ANY DEVIATION TO THE NORTH OF THE TRACK COULD BRING
STRONGER WINDS TO THE COAST.

SATELLITE IMAGES INDICATE THAT HILARY HAS CONTINUED TO STRENGTHEN...
AND MAXIMUM SUSTAINED WINDS HAVE INCREASED TO NEAR 115 MPH...185
KM/H...WITH HIGHER GUSTS.  HILARY IS NOW A CATEGORY THREE HURRICANE
ON THE SAFFIR-SIMPSON HURRICANE WIND SCALE.  ADDITIONAL
STRENGTHENING IS POSSIBLE TONIGHT.

HILARY IS A SMALL TROPICAL CYCLONE.  HURRICANE FORCE WINDS EXTEND
OUTWARD UP TO 25 MILES...35 KM...FROM THE CENTER...AND TROPICAL
STORM FORCE WINDS EXTEND OUTWARD UP TO 80 MILES...130 KM.

ESTIMATED MINIMUM CENTRAL PRESSURE IS 960 MB...28.35 INCHES.


HAZARDS AFFECTING LAND
----------------------
WIND...TROPICAL STORM FORCE WINDS ARE AFFECTING PORTIONS OF THE
COAST WITHIN THE WARNING AREA. THESE WINDS ARE EXPECTED TO SPREAD
WESTWARD ALONG THE COAST DURING THE NEXT 24 TO 36 HOURS.

RAINFALL...HILARY IS EXPECTED TO PRODUCE RAINFALL AMOUNTS OF 3 TO 5
INCHES ACROSS SOUTHERN GUERRERO AND SOUTHWESTERN OAXACA IN SOUTHERN
MEXICO WITH ISOLATED AMOUNTS OF 10 INCHES POSSIBLE.

SURF...SWELLS GENERATED BY HILARY ARE AFFECTING PORTIONS OF THE
COAST OF SOUTHWESTERN MEXICO. THESE SWELLS ARE LIKELY TO CAUSE
LIFE-THREATENING SURF AND RIP CURRENT CONDITIONS.