Hurricane Katrina

Forecast Advisory 21



000
WTNT22 KNHC 280840
TCMAT2
HURRICANE KATRINA FORECAST/ADVISORY NUMBER 21
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL AL122005
0900Z SUN AUG 28 2005

A HURRICANE WARNING IS IN EFFECT FOR THE NORTH CENTRAL GULF COAST
FROM MORGAN CITY LOUISIANA EASTWARD TO THE ALABAMA/FLORIDA
BORDER...INCLUDING THE CITY OF NEW ORLEANS AND LAKE PONTCHARTRAIN.
A HURRICANE WARNING MEANS THAT HURRICANE CONDITIONS ARE EXPECTED
WITHIN THE WARNING AREA WITHIN THE NEXT 24 HOURS. PREPARATIONS TO
PROTECT LIFE AND PROPERTY SHOULD BE RUSHED TO COMPLETION.

A TROPICAL STORM WARNING AND A HURRICANE WATCH ARE IN EFFECT FROM
EAST OF THE ALABAMA/FLORIDA BORDER TO DESTIN FLORIDA...AND FROM
WEST OF MORGAN CITY TO INTRACOASTAL CITY LOUISIANA. A TROPICAL
STORM WARNING MEANS THAT TROPICAL STORM CONDITIONS ARE EXPECTED
WITHIN THE WARNING AREA WITHIN THE NEXT 24 HOURS. A HURRICANE WATCH
MEANS THAT HURRICANE CONDITIONS ARE POSSIBLE WITHIN THE WATCH
AREA...GENERALLY WITHIN 36 HOURS.

AT 4 AM CDT...0900Z...A TROPICAL STORM WARNING HAS BEEN ISSUED FROM
EAST OF DESTIN FLORIDA EASTWARD TO INDIAN PASS FLORIDA...AND FROM
WEST OF INTRACOASTAL CITY LOUISIANA WESTWARD TO CAMERON LOUISIANA.
A TROPICAL STORM WARNING MEANS THAT TROPICAL STORM CONDITIONS ARE
EXPECTED WITHIN THE WARNING AREA WITHIN THE NEXT 24 HOURS.

HURRICANE CENTER LOCATED NEAR 25.4N 87.4W AT 28/0900Z
POSITION ACCURATE WITHIN 10 NM

PRESENT MOVEMENT TOWARD THE WEST-NORTHWEST OR 290 DEGREES AT 9 KT

ESTIMATED MINIMUM CENTRAL PRESSURE 935 MB
MAX SUSTAINED WINDS 125 KT WITH GUSTS TO 155 KT.
64 KT....... 75NE 75SE 50SW 75NW.
50 KT.......100NE 100SE 75SW 100NW.
34 KT.......160NE 160SE 125SW 140NW.
12 FT SEAS..275NE 150SE 150SW 275NW.
WINDS AND SEAS VARY GREATLY IN EACH QUADRANT. RADII IN NAUTICAL
MILES ARE THE LARGEST RADII EXPECTED ANYWHERE IN THAT QUADRANT.

REPEAT...CENTER LOCATED NEAR 25.4N 87.4W AT 28/0900Z
AT 28/0600Z CENTER WAS LOCATED NEAR 25.2N 86.8W

FORECAST VALID 28/1800Z 26.3N 88.4W
MAX WIND 130 KT...GUSTS 160 KT.
64 KT... 75NE 75SE 50SW 75NW.
50 KT...100NE 100SE 75SW 100NW.
34 KT...160NE 160SE 125SW 140NW.

FORECAST VALID 29/0600Z 28.0N 89.4W
MAX WIND 135 KT...GUSTS 165 KT.
64 KT... 75NE 75SE 50SW 75NW.
50 KT...100NE 100SE 75SW 100NW.
34 KT...160NE 160SE 125SW 140NW.

FORECAST VALID 29/1800Z 30.0N 89.8W
MAX WIND 125 KT...GUSTS 155 KT.
64 KT... 75NE 75SE 50SW 50NW.
50 KT...100NE 100SE 75SW 75NW.
34 KT...160NE 160SE 125SW 125NW.

FORECAST VALID 30/0600Z 32.3N 89.3W...INLAND
MAX WIND 65 KT...GUSTS 80 KT.
50 KT... 60NE 60SE 30SW 30NW.
34 KT... 90NE 90SE 60SW 60NW.

FORECAST VALID 31/0600Z 37.5N 86.0W...INLAND
MAX WIND 35 KT...GUSTS 45 KT.
34 KT... 75NE 75SE 50SW 50NW.

EXTENDED OUTLOOK. NOTE...ERRORS FOR TRACK HAVE AVERAGED NEAR 250 NM
ON DAY 4 AND 325 NM ON DAY 5...AND FOR INTENSITY NEAR 20 KT EACH DAY

OUTLOOK VALID 01/0600Z 42.0N 79.0W...EXTRATROPICAL
MAX WIND 30 KT...GUSTS 40 KT.

OUTLOOK VALID 02/0600Z 47.0N 70.0W...EXTRATROPICAL
MAX WIND 25 KT...GUSTS 35 KT.

REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 25.4N 87.4W

NEXT ADVISORY AT 28/1500Z

FORECASTER KNABB


$$


000
WTNT22 KNHC 280851
TCMAT2
HURRICANE KATRINA FORECAST/ADVISORY NUMBER 21...CORRECTED
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL AL122005
0900Z SUN AUG 28 2005

...CORRECTED WORDING IN NEW TROPICAL STORM WARNING...

A HURRICANE WARNING IS IN EFFECT FOR THE NORTH CENTRAL GULF COAST
FROM MORGAN CITY LOUISIANA EASTWARD TO THE ALABAMA/FLORIDA
BORDER...INCLUDING THE CITY OF NEW ORLEANS AND LAKE PONTCHARTRAIN.
A HURRICANE WARNING MEANS THAT HURRICANE CONDITIONS ARE EXPECTED
WITHIN THE WARNING AREA WITHIN THE NEXT 24 HOURS. PREPARATIONS TO
PROTECT LIFE AND PROPERTY SHOULD BE RUSHED TO COMPLETION.

A TROPICAL STORM WARNING AND A HURRICANE WATCH ARE IN EFFECT FROM
EAST OF THE ALABAMA/FLORIDA BORDER TO DESTIN FLORIDA...AND FROM
WEST OF MORGAN CITY TO INTRACOASTAL CITY LOUISIANA. A TROPICAL
STORM WARNING MEANS THAT TROPICAL STORM CONDITIONS ARE EXPECTED
WITHIN THE WARNING AREA WITHIN THE NEXT 24 HOURS. A HURRICANE WATCH
MEANS THAT HURRICANE CONDITIONS ARE POSSIBLE WITHIN THE WATCH
AREA...GENERALLY WITHIN 36 HOURS.

AT 4 AM CDT...0900Z...A TROPICAL STORM WARNING HAS BEEN ISSUED FROM
DESTIN FLORIDA EASTWARD TO INDIAN PASS FLORIDA...AND FROM
INTRACOASTAL CITY LOUISIANA WESTWARD TO CAMERON LOUISIANA.
A TROPICAL STORM WARNING MEANS THAT TROPICAL STORM CONDITIONS ARE
EXPECTED WITHIN THE WARNING AREA WITHIN THE NEXT 24 HOURS.

HURRICANE CENTER LOCATED NEAR 25.4N 87.4W AT 28/0900Z
POSITION ACCURATE WITHIN 10 NM

PRESENT MOVEMENT TOWARD THE WEST-NORTHWEST OR 290 DEGREES AT 9 KT

ESTIMATED MINIMUM CENTRAL PRESSURE 935 MB
MAX SUSTAINED WINDS 125 KT WITH GUSTS TO 155 KT.
64 KT....... 75NE 75SE 50SW 75NW.
50 KT.......100NE 100SE 75SW 100NW.
34 KT.......160NE 160SE 125SW 140NW.
12 FT SEAS..275NE 150SE 150SW 275NW.
WINDS AND SEAS VARY GREATLY IN EACH QUADRANT. RADII IN NAUTICAL
MILES ARE THE LARGEST RADII EXPECTED ANYWHERE IN THAT QUADRANT.

REPEAT...CENTER LOCATED NEAR 25.4N 87.4W AT 28/0900Z
AT 28/0600Z CENTER WAS LOCATED NEAR 25.2N 86.8W

FORECAST VALID 28/1800Z 26.3N 88.4W
MAX WIND 130 KT...GUSTS 160 KT.
64 KT... 75NE 75SE 50SW 75NW.
50 KT...100NE 100SE 75SW 100NW.
34 KT...160NE 160SE 125SW 140NW.

FORECAST VALID 29/0600Z 28.0N 89.4W
MAX WIND 135 KT...GUSTS 165 KT.
64 KT... 75NE 75SE 50SW 75NW.
50 KT...100NE 100SE 75SW 100NW.
34 KT...160NE 160SE 125SW 140NW.

FORECAST VALID 29/1800Z 30.0N 89.8W
MAX WIND 125 KT...GUSTS 155 KT.
64 KT... 75NE 75SE 50SW 50NW.
50 KT...100NE 100SE 75SW 75NW.
34 KT...160NE 160SE 125SW 125NW.

FORECAST VALID 30/0600Z 32.3N 89.3W...INLAND
MAX WIND 65 KT...GUSTS 80 KT.
50 KT... 60NE 60SE 30SW 30NW.
34 KT... 90NE 90SE 60SW 60NW.

FORECAST VALID 31/0600Z 37.5N 86.0W...INLAND
MAX WIND 35 KT...GUSTS 45 KT.
34 KT... 75NE 75SE 50SW 50NW.

EXTENDED OUTLOOK. NOTE...ERRORS FOR TRACK HAVE AVERAGED NEAR 250 NM
ON DAY 4 AND 325 NM ON DAY 5...AND FOR INTENSITY NEAR 20 KT EACH DAY

OUTLOOK VALID 01/0600Z 42.0N 79.0W...EXTRATROPICAL
MAX WIND 30 KT...GUSTS 40 KT.

OUTLOOK VALID 02/0600Z 47.0N 70.0W...EXTRATROPICAL
MAX WIND 25 KT...GUSTS 35 KT.

REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 25.4N 87.4W

NEXT ADVISORY AT 28/1500Z

FORECASTER KNABB


$$