000
WTPZ34 KNHC 282039
TCPEP4
 
BULLETIN
HURRICANE HILARY ADVISORY NUMBER  31
NWS NATIONAL HURRICANE CENTER MIAMI FL       EP092011
200 PM PDT WED SEP 28 2011
 
...NOAA AIRCRAFT FINDS HILARY IS STILL A HURRICANE...
 
 
SUMMARY OF 200 PM PDT...2100 UTC...INFORMATION
----------------------------------------------
LOCATION...19.0N 118.9W
ABOUT 640 MI...1030 KM WSW OF THE SOUTHERN TIP OF BAJA CALIFORNIA
MAXIMUM SUSTAINED WINDS...80 MPH...130 KM/H
PRESENT MOVEMENT...NW OR 325 DEGREES AT 8 MPH...13 KM/H
MINIMUM CENTRAL PRESSURE...980 MB...28.94 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 HURRICANE HILARY WAS
LOCATED NEAR LATITUDE 19.0 NORTH...LONGITUDE 118.9 WEST. HILARY IS
MOVING TOWARD THE NORTHWEST NEAR 8 MPH...13 KM/H. A TURN
TOWARD THE NORTH-NORTHWEST IS EXPECTED BY TONIGHT...AND A NORTH-
NORTHWESTWARD MOTION IS EXPECTED TO CONTINUE THROUGH FRIDAY.
 
DATA FROM A NOAA HURRICANE HUNTER AIRCRAFT INDICATE THAT MAXIMUM
SUSTAINED WINDS REMAIN NEAR 80 MPH...130 KM/H...WITH HIGHER GUSTS.
HILARY IS A CATEGORY ONE HURRICANE ON THE SAFFIR-SIMPSON HURRICANE
WIND SCALE. WEAKENING IS FORECAST DURING THE NEXT 48 HOURS...AND
HILARY IS EXPECTED TO BECOME A TROPICAL STORM TONIGHT AND WEAKEN TO
A REMNANT LOW ON FRIDAY.
 
HURRICANE FORCE WINDS EXTEND OUTWARD UP TO 25 MILES...35 KM...FROM
THE CENTER...AND TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 105
MILES...165 KM.
 
THE MINIMUM CENTRAL PRESSURE BASED ON DATA FROM THE AIRCRAFT IS 980
MB...28.94 INCHES.
 
 
HAZARDS AFFECTING LAND
----------------------
SURF...SWELLS GENERATED BY HILARY ARE AFFECTING PORTIONS OF THE
COAST OF SOUTHERN BAJA CALIFORNIA. THESE SWELLS ARE LIKELY CAUSING
LIFE-THREATENING SURF AND RIP CURRENT CONDITIONS.
 
 
NEXT ADVISORY
-------------
NEXT COMPLETE ADVISORY...800 PM PDT.
 
$$
FORECASTER BRENNAN