000
WTPZ34 KNHC 210851
TCPEP4
 
BULLETIN
HURRICANE DORA ADVISORY NUMBER  12
NWS NATIONAL HURRICANE CENTER MIAMI FL       EP042011
200 AM PDT THU JUL 21 2011
 
...DORA STRENGTHENS A LITTLE MORE...
 
 
SUMMARY OF 200 AM PDT...0900 UTC...INFORMATION
----------------------------------------------
LOCATION...16.6N 106.1W
ABOUT 265 MI...425 KM S OF CABO CORRIENTES MEXICO
ABOUT 500 MI...805 KM SSE OF CABO SAN LUCAS MEXICO
MAXIMUM SUSTAINED WINDS...140 MPH...220 KM/H
PRESENT MOVEMENT...NW OR 305 DEGREES AT 13 MPH...20 KM/H
MINIMUM CENTRAL PRESSURE...942 MB...27.82 INCHES
 
 
WATCHES AND WARNINGS
--------------------
THERE ARE NO COASTAL WATCHES OR WARNINGS IN EFFECT.
 
 
DISCUSSION AND 48-HOUR OUTLOOK
------------------------------
AT 200 AM PDT...0900 UTC...THE CENTER OF HURRICANE DORA WAS LOCATED
NEAR LATITUDE 16.6 NORTH...LONGITUDE 106.1 WEST. DORA IS MOVING
TOWARD THE NORTHWEST NEAR 13 MPH...20 KM/H...AND THIS GENERAL MOTION
WITH A DECREASE IN FORWARD SPEED IS EXPECTED DURING THE NEXT COUPLE
OF DAYS.
 
MAXIMUM SUSTAINED WINDS HAVE INCREASED TO NEAR 140 MPH...220
KM/H...WITH HIGHER GUSTS.  DORA IS A CATEGORY FOUR HURRICANE ON THE
SAFFIR-SIMPSON HURRICANE WIND SCALE. SOME ADDITIONAL STRENGTHENING
IS POSSIBLE DURING THE NEXT 12 HOURS OR SO.  WEAKENING IS EXPECTED
TO BEGIN BY FRIDAY.
 
HURRICANE FORCE WINDS EXTEND OUTWARD UP TO 40 MILES...65 KM...FROM
THE CENTER...AND TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 150
MILES...240 KM.
 
ESTIMATED MINIMUM CENTRAL PRESSURE IS 942 MB...27.82 INCHES.
 
 
HAZARDS AFFECTING LAND
----------------------
SURF...LARGE SWELLS GENERATED BY DORA WILL AFFECT THE COAST OF
SOUTHERN AND SOUTHWESTERN MEXICO DURING THE NEXT COUPLE OF DAYS.
SWELLS WILL BEGIN AFFECTING THE COAST OF THE SOUTHERN PORTION OF
THE BAJA CALIFORNIA PENINSULA LATER TODAY.  THESE SWELLS ARE LIKELY
TO CAUSE LIFE-THREATENING SURF AND RIP CURRENT CONDITIONS.
 
 
NEXT ADVISORY
-------------
NEXT COMPLETE ADVISORY...800 AM PDT.
 
$$
FORECASTER CANGIALOSI