000
WTPZ35 KNHC 111148
TCPEP5
BULLETIN
HURRICANE NORBERT INTERMEDIATE ADVISORY NUMBER  30A
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL   EP152008
500 AM PDT SAT OCT 11 2008
 
...NORBERT WEAKENS SLIGHTLY...NEARING THE SOUTHWESTERN COAST OF THE
BAJA CALIFORNIA PENINSULA.
 
A HURRICANE WARNING REMAINS IN EFFECT FOR THE WEST COAST OF BAJA
CALIFORNIA FROM PUERTO SAN ANDRESITO TO AGUA BLANCA...AND FOR THE
EAST COAST OF BAJA CALIFORNIA FROM NORTH OF LA PAZ TO LORETO.
 
A HURRICANE WARNING IS ALSO IN EFFECT FOR THE COAST OF MAINLAND
MEXICO FROM TOPOLOBAMPO NORTHWARD TO GUAYMAS. PREPARATIONS TO
PROTECT LIFE AND PROPERTY IN THE HURRICANE WARNING AREAS SHOULD BE
RUSHED TO COMPLETION.
 
A TROPICAL STORM WARNING AND A HURRICANE WATCH ARE IN EFFECT FOR THE
COAST OF BAJA CALIFORNIA FROM SOUTH OF AGUA BLANCA SOUTHWARD TO
CABO SAN LUCAS AND NORTHWARD AROUND THE PENINSULA TO LA PAZ.
 
A TROPICAL STORM WARNING IS IN EFFECT FOR THE EAST COAST OF BAJA
CALIFORNIA FROM NORTH OF LORETO NORTHWARD TO MULEGE.
 
FOR STORM INFORMATION SPECIFIC TO YOUR AREA...INCLUDING POSSIBLE
INLAND WATCHES AND WARNINGS...PLEASE MONITOR PRODUCTS ISSUED
BY YOUR LOCAL WEATHER OFFICE.
 
AT 500 AM PDT...1200Z...THE CENTER OF HURRICANE NORBERT WAS LOCATED
NEAR LATITUDE 23.6 NORTH...LONGITUDE 112.3 WEST OR ABOUT 80 MILES...
130 KM...SOUTH OF CABO SAN LAZARO MEXICO AND ABOUT 130 MILES...210
KM...WEST-SOUTHWEST OF LA PAZ MEXICO.
 
NORBERT IS MOVING TOWARD THE NORTH-NORTHEAST NEAR 15 MPH...24 KM/HR.
A MOTION BETWEEN NORTH-NORTHEAST AND NORTHEAST WITH AN INCREASE IN
FORWARD SPEED IS EXPECTED DURING THE NEXT 24 HOURS.  ON THIS
TRACK...NORBERT IS EXPECTED TO MAKE LANDFALL ALONG THE WEST COAST
OF THE SOUTHERN BAJA CALIFORNIA PENINSULA LATER THIS MORNING...
THEN MOVE OVER THE GULF OF CALIFORNIA THIS AFTERNOON AND MAKE A
SECOND LANDFALL IN NORTHWESTERN MEXICO TONIGHT.
 
MAXIMUM SUSTAINED WINDS HAVE DECREASED TO NEAR 110 MPH...175
KM/HR...WITH HIGHER GUSTS.  NORBERT IS A CATEGORY TWO HURRICANE 
ON THE SAFFIR-SIMPSON SCALE.  NO SIGNIFICANT CHANGE IN STRENGTH IN
FORECAST BEFORE LANDFALL ALONG THE SOUTHWESTERN COAST OF BAJA
CALIFORNIA.  WEAKENING IS EXPECTED AFTER LANDFALL IN BAJA
CALIFORNIA...BUT NORBERT COULD STILL BE A HURRICANE WHEN IT MAKES 
A SECOND LANDFALL ALONG THE NORTHWESTERN COAST OF MAINLAND MEXICO.
 
HURRICANE FORCE WINDS EXTEND OUTWARD UP TO 35 MILES...55 KM...FROM
THE CENTER...AND TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 140
MILES...220 KM.
 
THE ESTIMATED MINIMUM CENTRAL PRESSURE IS 964 MB...28.47 INCHES.
 
NORBERT IS EXPECTED TO PRODUCE RAINFALL ACCUMULATIONS OF 4 TO 6
INCHES OVER SOUTHERN BAJA CALIFORNIA AS WELL AS PORTIONS OF
NORTHWESTERN MEXICO...WITH POSSIBLE ISOLATED AMOUNTS OF 10 INCHES.
THESE RAINS COULD RESULT IN LIFE-THREATENING FLASH FLOODS AND MUD
SLIDES.  IN ADDITION...NORBERT COULD PRODUCE RAINFALL ACCUMULATIONS
OF 1 TO 2 INCHES OVER PORTIONS OF THE SOUTHWESTERN UNITED STATES
BEGINNING TONIGHT.
 
STORM SURGE FLOODING OF 2 TO 5 FEET ABOVE NORMAL TIDE LEVELS...ALONG
WITH LARGE AND DANGEROUS BATTERING WAVES...IS EXPECTED ALONG THE
WEST COAST OF THE SOUTHERN BAJA PENINSULA NEAR AND TO THE SOUTHEAST
OF WHERE NORBERT MAKES LANDFALL.
 
REPEATING THE 500 AM PDT POSITION...23.6 N...112.3 W.  MOVEMENT
TOWARD...NORTH-NORTHEAST NEAR 15 MPH.  MAXIMUM SUSTAINED WINDS...110
MPH.  MINIMUM CENTRAL PRESSURE...964 MB.
 
THE NEXT ADVISORY WILL BE ISSUED BY THE NATIONAL HURRICANE CENTER AT
800 AM PDT.
 
$$
FORECASTER BROWN/AVILA