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BULLETIN

HURRICANE HUMBERTO SPECIAL ADVISORY NUMBER  4

NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL  AL092007

1215 AM CDT THU SEP 13 2007

...HUMBERTO BECOMES A HURRICANE JUST BEFORE LANDFALL...

...HURRICANE FORCE WINDS COVER SMALL AREA NORTHEAST OF CENTER...

AT 1215 AM CDT...0515Z...A HURRICANE WARNING HAS BEEN ISSUED FROM

EAST OF HIGH ISLAND TEXAS TO CAMERON LOUISIANA. THE HURRICANE

WARNING FOR HUMBERTO MEANS THAT HURRICANE CONDITIONS ARE EXPECTED

WITHIN THE WARNING AREA WITHIN THE NEXT FEW HOURS.

A TROPICAL STORM WARNING REMAINS IN EFFECT FROM EAST OF SARGENT

TEXAS TO HIGH ISLAND TEXAS...AND FROM EAST OF CAMERON LOUISIANA TO

TO INTRACOASTAL CITY LOUISIANA.

FOR STORM INFORMATION SPECIFIC TO YOUR AREA...INCLUDING POSSIBLE

INLAND WATCHES AND WARNINGS...PLEASE MONITOR PRODUCTS ISSUED

BY YOUR LOCAL WEATHER OFFICE.

AT 1215 AM CDT...THE CENTER OF HURRICANE HUMBERTO WAS LOCATED NEAR

LATITUDE 29.4 NORTH...LONGITUDE 94.4 WEST OR ABOUT 20 MILES...30

KM...EAST OF GALVESTON TEXAS...AND ABOUT 15 MILES...20 KM...SOUTH

OF HIGH ISLAND TEXAS.

HUMBERTO IS MOVING TOWARD THE NORTH-NORTHEAST NEAR 8 MPH...13 KM/HR

...AND THIS GENERAL DIRECTION OF MOTION WITH SOME INCREASE IN

FORWARD SPEED IS EXPECTED OVER THE NEXT 24 HOURS.  ON THE FORECAST

TRACK THE CENTER WILL BE CROSSING THE UPPER TEXAS COAST WITHIN THE

NEXT FEW HOURS.

DATA FROM AN AIR FORCE RECONNAISSANCE AIRCRAFT AND DOPPLER RADAR

INDICATE THAT THE MAXIMUM SUSTAINED WINDS HAVE INCREASED TO NEAR 80

MPH...130 KM/HR...WITH HIGHER GUSTS...CONFINED TO A SMALL AREA

NORTHEAST OF THE CENTER.  HUMBERTO IS NOW A CATEGORY ONE HURRICANE

ON THE SAFFIR-SIMPSON SCALE.  LITTLE ADDITIONAL STRENGTHENING IS

EXPECTED PRIOR TO LANDFALL.

HURRICANE FORCE WINDS EXTEND OUTWARD UP TO 15 MILES...30 KM...

NORTHEAST OF THE CENTER...AND TROPICAL STORM FORCE WINDS EXTEND

OUTWARD UP TO 60 MILES...95 KM. 

MINIMUM CENTRAL PRESSURE RECENTLY REPORTED BY THE AIRCRAFT WAS 992

MB...29.29 INCHES.

RAINFALL AMOUNTS OF 5 TO 10 INCHES ARE EXPECTED ALONG THE TRACK OF

HUMBERTO THROUGH EASTERN TEXAS AS WELL AS WESTERN AND CENTRAL

LOUISIANA...WITH ISOLATED MAXIMUM ACCUMULATIONS OF 15 INCHES

POSSIBLE.

COASTAL STORM SURGE FLOODING OF 3 TO 4 FEET ABOVE NORMAL TIDE LEVELS

CAN BE EXPECTED NEAR AND TO THE EAST OF WHERE THE CENTER MAKES

LANDFALL.

ISOLATED TORNADOES ARE POSSIBLE IN SOUTHEASTERN TEXAS AND

SOUTHWESTERN LOUISIANA THROUGH EARLY THURSDAY.

REPEATING THE 1215 AM CDT POSITION...29.4 N...94.4 W.  MOVEMENT

TOWARD...NORTH-NORTHEAST NEAR 8 MPH.  MAXIMUM SUSTAINED WINDS...80

MPH.  MINIMUM CENTRAL PRESSURE...992 MB.

THE NEXT ADVISORY WILL BE ISSUED BY THE NATIONAL HURRICANE

CENTER AT 400 AM CDT.

$$

FORECASTER MAINELLI/AVILA

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