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On this date ten years ago Katrina became a hurricane shortly before making landfall in southern Florida. The tropical system spent much of the day strengthening becoming a hurricane about two hours before landfall near North Miami Beach. Sustained winds of 80 MPH and gusts near 95 MPH pounded the Miami metro during the early evening hours of August 25, 2005. Shortly after moving onshore the eye of Katrina passed directly over the National Hurricane Center before moving west over the Florida Everglades. Six individuals were directly killed in Florida due to Katrina. Even as the storm was making landfall some folks were out driving like it was just another day.

For more details on Katrina’s impacts on southern Florida head to the National Weather Service Miami’s webpage.

Katrina was a low-end Category 1 hurricane at landfall in southern Florida. The storm was strengthening right up to and even after landfall. Most of southern Florida is marshland and many times a tropical system will not weaken much – if at all – passing over the Everglades. Katrina weakened below hurricane strength for about three hours early on the morning of August 26 before emerging in the eastern Gulf of Mexico. After less than an hour back over the warm waters Katrina regained hurricane strength and the race was on. We’ll talk about Katrina’s first day in the Gulf of Mexico in our August 26 remembrance post marking the 10th Anniversary of ‘the Hurricane’.

This is the advisory issued by the National Hurricane Center at 7 PM EDT on August 25, 2005 as Katrina was making landfall just outside their building.

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HURRICANE KATRINA INTERMEDIATE ADVISORY NUMBER 9A
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
7 PM EDT THU AUG 25 2005

…EYE OF KATRINA CURRENTLY MAKING LANDFALL BETWEEN HALLANDALE BEACH
AND NORTH MIAMI BEACH WITH 80 MPH WINDS…PORT EVERGLADES JUST
REPORTED GUSTS TO 92 MPH WINDS…

A HURRICANE WARNING REMAINS IN EFFECT FOR THE SOUTHEAST FLORIDA
COAST FROM JUPITER INLET SOUTHWARD TO FLORIDA CITY…INCLUDING LAKE
OKEECHOBEE. PREPARATIONS TO PROTECT LIFE AND PROPERTY SHOULD HAVE
BEEN COMPLETED.

A TROPICAL STORM WARNING HAS BEEN ISSUED FOR ALL OF THE FLORIDA KEYS
AND FLORIDA BAY FROM KEY WEST NORTHWARD. A TROPICAL STORM WARNING
IS ALSO IN EFFECT ALONG THE GULF COAST OF FLORIDA FROM LONGBOAT KEY
SOUTH AND EASTWARD TO SOUTH OF FLORIDA CITY. A TROPICAL STORM
WARNING REMAINS IN EFFECT ALONG THE FLORIDA EAST COAST FROM NORTH
OF JUPITER INLET TO VERO BEACH.

AT 7 PM EDT…2300Z…THE TROPICAL STORM WARNING FOR GRAND BAHAMA
ISLAND…BIMINI…AND THE BERRY ISLANDS IN THE NORTHWEST BAHAMAS
HAS BEEN DISCONTINUED.

A TROPICAL STORM WATCH IS IN EFFECT FOR PORTIONS THE FLORIDA WEST
COAST FROM NORTH OF LONGBOAT KEY TO ANCLOTE KEY AND FOR THE
EAST-CENTRAL FLORIDA COAST FROM NORTH OF VERO BEACH TO TITUSVILLE
…INCLUDING ALL OF MERRITT ISLAND. A TROPICAL STORM WATCH MEANS
THAT TROPICAL STORM CONDITIONS ARE POSSIBLE WITHIN THE WATCH
AREA…GENERALLY WITHIN 36 HOURS.

FOR STORM INFORMATION SPECIFIC TO YOUR AREA…INCLUDING POSSIBLE
INLAND WATCHES AND WARNINGS…PLEASE MONITOR PRODUCTS ISSUED
BY YOUR LOCAL WEATHER OFFICE.

AT 7 PM EDT…2300Z…THE EYE OF HURRICANE KATRINA WAS LOCATED
NEAR LATITUDE 25.9 NORTH…LONGITUDE 80.1 WEST. THIS POSITION IS ON
THE COAST BETWEEN HALLANDALE BEACH AND NORTH MIAMI BEACH.

KATRINA IS MOVING TOWARD THE WEST NEAR 6 MPH AND THIS GENERAL MOTION
IS EXPECTED TO CONTINUE DURING THE NEXT 24 HOURS. ON THIS TRACK…
THE CENTER SHOULD MOVE FARTHER INLAND ALONG SOUTH FLORIDA TONIGHT
AND FRIDAY.

LATEST REPORT FROM A NOAA RECONNAISSANCE AIRCRAFT AND THE MIAMI NOAA
DOPPLER RADAR INDICATE MAXIMUM SUSTAINED WINDS ARE 80 MPH… WITH
HIGHER GUSTS. KATRINA IS A CATEGORY ONE HURRICANE ON THE
SAFFIR-SIMPSON SCALE. STRONGER WINDS…ESPECIALLY IN GUSTS…ARE
LIKELY ON HIGH RISING BUILDINGS. A GRADUAL WEAKENING IS EXPECTED AS
KATRINA CONTINUES TO MOVE INLAND ACROSS SOUTH FLORIDA AND THE
EVERGLADES TONIGHT AND FRIDAY.

HURRICANE FORCE WINDS EXTEND OUTWARD UP TO 15 MILES FROM THE
CENTER…AND TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP
TO 80 MILES.

ESTIMATED MINIMUM CENTRAL PRESSURE IS 985 MB…29.09 INCHES.

STORM SURGE FLOODING OF 2 TO 4 FEET ABOVE NORMAL TIDE LEVELS…
ALONG WITH LARGE AND DANGEROUS BATTERING WAVES…CAN BE EXPECTED
NEAR AND TO THE NORTH OF THE LANDFALL POINT.

DUE TO ITS SLOW FORWARD SPEED…KATRINA IS EXPECTED TO PRODUCE A
SIGNIFICANT HEAVY RAINFALL EVENT OVER SOUTH FLORIDA…AND THE
CENTRAL AND NORTHWEST BAHAMAS. TOTAL RAINFALL ACCUMULATIONS OF 6 TO
10 INCHES WITH ISOLATED MAXIMUM AMOUNTS OF 15 INCHES ARE POSSIBLE.

ISOLATED TORNADOES WILL ALSO BE POSSIBLE OVER SOUTHERN FLORIDA AND
THE FLORIDA KEYS.

REPEATING THE 7 PM EDT POSITION…25.9 N… 80.1 W. MOVEMENT
TOWARD…WEST NEAR 6 MPH. MAXIMUM SUSTAINED WINDS… 80 MPH.
MINIMUM CENTRAL PRESSURE… 985 MB.