Hurricane Rita Post-Tropical Cyclone Report

POST-TROPICAL CYCLONE REPORT...HURRICANE RITA
NATIONAL WEATHER SERVICE NEW ORLEANS LA
1020 PM CDT TUE DEC 27 2005

THIS REPORT COVERS THE PERIOD SEPT 23-25 2005 WHEN HURRICANE RITA
MOVED THROUGH THE GULF OF MEXICO BEFORE MAKING LANDFALL IN EXTREME
SOUTHWEST LOUISIANA AND SOUTHEAST TEXAS OF SEPT 24. THIS DATA IS
PRELIMINARY AND WILL BE UPDATED AS NEW INFORMATION BECOMES
AVAILABLE.

DEC 27...UPDATED FOR LSU AG DATA WINDS/PRES/RAINFALL. UPDATED STORM
SURGE INFORMATION AND STORM EFFECT NARRATIVE.

A.  HIGHEST WINDS...

ASOS....2 MINUTE SUSTAINED WINDS

LOCATION                     DIR/SPEED KT

PASCAGOULA  KPQL
                 SUSTAINED   140/24 KT     09/24/2005  1837UTC
                 PEAK        110/29 KT     09/23/2005  2007UTC
                             140/29 KT     09/24/2005  1848UTC
BILOXI-KEESLER AFB
                 SUSTAINED   130/25 KT     09/23/2005  1946UTC
                 PEAK        130/45 KT     09/23/2005  1946UTC
                 PEAK        130/45 KT     09/23/2005  1955UTC

GULFPORT    KGPT SUSTAINED   110/38 KT     09/23/2005  1952 UTC
                 PEAK        120/45 KT     09/23/2005  1951 UTC

SLIDELL     KASD SUSTAINED   160/30 KT     09/24/2005  1838 UTC
                 PEAK        160/38 KT     09/24/2005  1529 UTC

NEW ORLEANS ARMSTRONG INTERNATIONAL AIRPORT KMSY
                 SUSTAINED   120/30 KT     09/23/2005  1716 UTC
                 SUSTAINED   170/30 KT     09/24/2005  1840 UTC
                 PEAK        090/42 KT     09/23/2005  1738 UTC

BELLE CHASE NAS KNBG
                 SUSTAINED   100/18 KT     09/23/2005  1915 UTC
                 PEAK        110/37 KT     09/24/2005  0915 UTC

BATON ROUGE KBTR SUSTAINED   180/36 KT     09/24/2005  1643 UTC
                 PEAK        090/46 KT     09/24/2005  0406 UTC
                 PEAK        190/46 KT     09/24/2005  1548 UTC

LSU AG WEATHER OBSERVATIONS -
     BTR-BEN HUR    SUSTAINED   35 KT      09/24/2005  0220UTC
                    PEAK        50 KT      09/24/2005  0220

     BTR-BURDEN     SUSTAINED   22 KT      09/23/2005  2053UTC
                    PEAK        34 KT      09/24/2005  0211

     FRANKLINTON    SUSTAINED   29 KT      09/24/2005  1323UTC
                    PEAK        41 KT      09/24/2005  1237

     HOUMA          SUSTAINED   38 KT      09/24/2005  0232 UTC
                    PEAK        50 KT      09/24/2005  0232 UTC

     HAMMOND        SUSTAINED   29 KT      09/24/2005  1654 UTC
                    PEAK        39 KT      09/24/2005  0805 UTC

     LIVINGSTON-S   SUSTAINED   25 KT      09/24/2005  1635 UTC
                    PEAK        35 KT      09/24/2005  0502 UTC

     ST GABRIEL     SUSTAINED   35 KT      09/24/2005  0211 UTC
                    PEAK        50 KT      09/24/2005  0613 UTC

B. LOWEST PRESSURE
                       PRES MB    DATE/TIME UTC

PASCAGOULA KPQL.........1008.8    09/23/2005  1938UTC
BILOXI KEESLER KBIX.....1006.8    09/23/2005  1924UTC
SLIDELL KASD............1005.1    09/23/2005  2141UTC
BELLE CHAS NAS  KNBG....1003.7    09/23/2005  2355UTC
NEW ORLEANS KMSY........1002.4    09/23/2005  2153UTC
BATON ROUGE KBTR........ 997.6    09/24/2005  0558UTC

LSU AG STATION

BATON ROUGE...BEN HUR..996.1    09/24/2005  1116UTC
BATON ROUGE..BURDEN....998.31   09/24/2005  0420UTC
FRANKLINTON............998.21   09/24/2005  1010UTC
HOUMA ARDOYNE FARM.....996.68   09/24/2005  0231UTC
HAMMOND...............1002.73   09/24/2005  1020UTC
LIVINGSTON SOUTH.......999.61   09/24/2005  0649UTC
LIVINGSTON WEST........996.47   09/24/2005  0740UTC
ST GABRIEL.............996.41   09/24/2005  0303UTC

C. STORM TOTAL RAINFALL

ASOS RAINFALL DATA...24 HOUR TOTALS ENDING 1200UTC

                      1200UTC   1200UTC     48 HOUR
                      SEP 24    SEP 25      TOTALS

ASOS
SLIDELL  KASD           0.62    0.02        0.64
N.O. ARMSTRONG INTL     2.06    0.01        2.07
BATON ROUGE KBTR        7.29    2.01        9.30

CO-OP OBSERVERS

SOUTHEAST LOUISIANA
ALGIERS               1.03       0.00       1.03
BAYOU SORREL LOCK     3.45       1.76       5.21
CONVENT               7.60       0.00       7.60
DONALDSONVILLE        3.50       1.13       3.63
LUTCHER               4.23       0.25       4.48
N.O AUDUBON PARK      1.49       0.80       2.29
RESERVE               4.54       0.12       4.66

EAST CENTRAL LOUISIANA
BATON ROUGE CONCORD   7.61       0.30       7.91
BATON ROUGE SHERWOOD  8.12       1.68       9.80
BAYOU MANCHAC         8.10       2.01      10.11
BOGALUSA              1.00       1.61       2.61
BRUSLY                5.72       0.19       5.91
CLINTON                MM        1.56
DENHAM SPRINGS        5.46        MM
FRANKLINTON           1.07       0.95       2.02
GONZALES               MM        0.61
GREENWELL SPRINGS     4.36       1.20       5.56
JACKSON               4.45        MM
KENTWOOD              1.78        MM
LIVERPOOL             3.33        MM
LIVINGSTON            5.34       1.60       6.94
OAKNOLIA              4.53       0.71       5.24
PLAQUEMINE            4.03       1.28       5.31
PONTCHATOULA          3.75       1.90       5.65
SLIDELL CITY          0.66       0.03       0.69

SELECTED AUTOMATED GAGES

5NE LAPLACE          12.43       0.19      12.42
         GAGE IS LOCATED NEAR FRENIER ON SOUTHWEST SHORE OF
         LAKE PONTCHARTRAIN.....STATION ID WSLL1.

NEW ORLEANS CARROLTON 6.32        MM        MM
BATON ROUGE JOOR RD   5.47       0.88       6.35
HOLDEN                4.48       0.54       5.02
BAPTIST               4.54       0.24       4.78

LSU AG CENTER STATIONS STORM TOTAL RAINFALL SEPT 23/24

BATON ROUGE BEN HUR....7.47
BATON ROUGE BURDEN.....9.10
HOUMA..ARDOYNE FARM....2.62
HAMMOND................1.85
LIVINGSTON SOUTH.......6.50
LIVINGSTON WEST........6.92
ST GABRIEL.............5.00

D. STORM SURGE

SOUTHEAST LOUISIANA

LAKE PONTCHARTRAIN
  USGS MID LAKE PONTCH. 6.5 FT NGVD  09/24/2005  1930UTC
                        LAST OF SEVERAL OCCURRENCES

RIGOLETES-COE           4.48 FT NGVD 09/23/2005
1515UTC                           GAGE FAILED AROUND 1600UTC

BARATARIA BAY N OF GRAND ISLE  USGS
                        7.34 FT NGVD 09/24/2005  0600 UTC
BAYOU BARATARIA LAFITTE  USGS
                        5.80 FT NGVD  09/24/2005  1600 UTC

GIWW AT HOUMA USGS      4.32 FT NGVD  09/25/2005  0830 UTC

CAILLOU LAKE SW OF DULAC USGS
                        6.95 FT NGVD  09/24/2004  0115 UTC
                        GAGE FAILED AT 0115 UTC WITH HIGHER
                        STAGES POSSIBLE AFTER FAILURE.

BAYOU GRAND CAILLOU AT DULAC USGS
                        7.10 FT NGVD  09/24/2005  1000 UTC

PT FOURCHON LA-NOAA     5.00 FT MLLW  09/24/2005  0700 UTC

TIDE DATA DATUM REFERENCE  MLLW - MEAN LOW LOW WATER
                           NGVD - NATIONAL GEODETIC VERTICAL DATUM

E. BEACH EROSION
NONE.

F. FLOODING OR FLASH FLOODING

RIVER FLOODING...MINOR TO MODERATE FLOODING AT A FEW LOCATIONS
                                     CREST     DATE
AMITE/COMITE RIVER
   FRENCH SETTELEMENT   FS 4.0       4.99     9/25/2005
TICKFAW RIVER
   KILLIAN              FS 4.0       6.00EST  9/25/2005
JOURDAN RIVER
   KILN MS              FS 6.0       6.26     9/24/2005

G. TORNADOES
NONE.

H. STORM EFFECT
PRIMARY AFFECT WAS STORM SURGE FLOODING IN LOW LYING COASTAL AREAS.
NUMEROUS HOUSES AND BUSINESSES WERE FLOODED IN LOW LYING COMMUNITIES
ALONG BAYOUS IN SOUTHERN TERREBONNE, SOUTH LAFOURCHE, AND SOUTHERN
JEFFERSON PARISHES. SOME LOCAL DRAINAGE LEVEES IN SOUTHERN TERREBONNE
AND SOUTHERN JEFFERSON PARISHES WERE PARISH WERE OVERTOPPED OR BREACHED
BY THE STORM SURGE. STORM SURGE FLOODING ALSO OCCURRED IN AREAS ADJACENT
TO LAKE PONTCHARTRAIN OF SOUTHERN ST TAMMANY PARISH WITH SOMES HOMES AND
BUSINESS FLOODED IN SLIDELL AND MANDEVILLE. FLOODING WAS ALSO REPORTED
AROUND LAKE MAUREPAS WITH A NUMBER OF STRUCTURE FLOODED. REPAIRED LEVEES
WERE OVERTOPPED OR BREACHED ALONG INDUSTRIAL CANAL IN NEW ORLEANS WITH
RENEWED FLOODING IN ADJACENT PORTIONS OF ST. BERNARD PARISH AND NEW
ORLEANS...ALTHOUGH FLOODING WAS MUCH MORE LIMITED THAN DURING HURRICANE
KATRINA


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