National Weather Service United States Department of Commerce

Hurricane Dennis


POST-TROPICAL CYCLONE REPORT...HURRICANE DENNIS
NATIONAL WEATHER SERVICE NEW ORLEANS LA
100 PM CDT SAT JUL 16 2005

THIS REPORT COVERS THE PERIOD JULY 9-10 2005 WHEN HURRICANE DENNIS
MOVED THROUGH THE EASTERN GULF OF MEXICO BEFORE MAKING LANDFALL IN
THE WESTERN FLORIDA PANHANDLE DURING THE AFTERNOON OF JULY 10.
THIS DATA IS PRELIMINARY AND WILL BE UPDATED AS NEW INFORMATION
BECOMES AVAILABLE.

A.  HIGHEST WINDS...

ASOS....2 MINUTE SUSTAINED WINDS

LOCATION                     DIR/SPEED KT  TIME ON JULY 10 2005

PASCAGOULA  KPQL ....DATA INCOMPLETE DUE TO POWER OUTAGE
                 SUSTAINED   330/22 KT     1925UTC
                 PEAK        350/34 KT     1931UTC

BILOXI-KEESLER AFB
                 SUSTAINED   310/26 KT     1923 UTC
                 PEAK        310/40 KT     1923 UTC

GULFPORT    KGPT SUSTAINED   330/27 KT     1952 UTC
                 PEAK        350/36 KT     1813 UTC

SLIDELL     KASD SUSTAINED   330/19 KT     2023 UTC
                 PEAK        340/25 KT     1856 UTC

BOOTHEVILLE KBVE -  
                 SUSTAINED   310/22 KT     2248 UTC
                 PEAK        320/29 KT     2248 UTC

NEW ORLEANS ARMSTRONG INTERNATIONAL AIRPORT KMSY
                 SUSTAINED   360/24 KT     1921 UTC
                 PEAK        350/30 KT     1952 UTC

NEW ORLEANS LAKEFRONT AIRPORT KNEW
                 SUSTAINED   330/33 KT     2120 UTC
                 PEAK        340/41 KT     1856 UTC

BELLE CHASE NAS KNBG
                 PEAK        340/31 KT     2131 UTC

COASTAL OBSERVATIONS...NOAA NDBC BUOY...CMAN
NOAA SW PASS CMAN...BURLI    WIND EQUIPMENT HEIGHT 30.5 M / 100 FT
                 SUSTAINED   060/33 KT     0640 UTC
                 PEAK        060/39 KT     0637 UTC

NOAA GRAND ISLE CMAN...GDIL1
                 SUSTAINED   327/27 KT     2120 UTC
                 PEAK        330/35 KT     2111 UTC

NOAA BUOY 42007
                 SUSTAINED   322/33 KT     1920 UTC
                 PEAK        330/45 KT     1930 UTC

LAKE PONTCHARTRAIN - NWS INSTRUMENTATION
  MID LAKE       SUSTAINED   337/34 KT     2210UTC
                 PEAK            42 KT     2100UTC

  MANDEVILLE     SUSTAINED   301/16 KT     2300UTC
                 PEAK            21 KT     2300UTC

B. LOWEST PRESSURE
                       PRES MB    TIME UTC  
                                  ON JULY 10 2005 UNLESS NOTED

PASCAGOULA KPQL......... 994.2    2325 UTC
GULFPORT KGPT........... 997.6    2254 UTC
SLIDELL KASD............1002.0    2301 UTC
MANDEVILLE LA           1003.5    2350 UTC
NEW ORLEANS KNEW........1003.7    0030 UTC  07/11/2005
NEW ORLEANS KMSY........1003.7    2353 UTC
BOOTHEVILLE KBVE........1002.7    2036 UTC
GRAND ISLE NOAA CMAN....1004.7    0000 UTC  07/11/2005

BURWOOD NOAA CMAN.......1003.7    2300 UTC
NOAA BUOY 42007......... 995.1    2150 UTC

C. STORM TOTAL RAINFALL

ASOS RAINFALL DATA
                   07/10/2005   07/11/2005    48 HOUR
                   1200UTC      1200UTC       TOTAL

PASCAGOUAL KPQL     0.00        1.06          1.06
GULFPORT KGPT       0.02        0.41          0.43
SLIDELL  KASD       1.74        0.13          1.87
LAKEFRONT KNEW      TRACE       0.08          0.08
N.O. ARMSTRONG INTL TRACE       TRACE         TRACE


CO-OP AND AUTOMATED GAGES AT RIVER GAGES

SOUTHEAST LOUISIANA 
BURAS                0.00        0.04         0.04
GRAND ISLE           0.00        0.08         0.08
THIBADAUX 3ESE       0.15        0.00         0.15

EAST CENTRAL LOUISIANA 
ANGIE                0.45        0.17         0.62
BUSH                 0.51        0.13         0.64
COVINGTON            0.10        0.10         0.20
MANDEVILLE 
  LAKEFRONT          0.00        0.07         0.07
PEARL RIVER          0.14        0.16         0.30
SLIDELL CITY         0.03        0.20         0.23
SUN                  0.00        0.32         0.32

SOUTH MISSISSIPPI

CARRIERE             0.55        0.28         0.83
D'IBERVILLE 2N       0.28        0.80         1.08
GULFPORT 7W          0.00        0.30         0.30
KILN                 0.00        0.16         0.16
LYMAN 5E             0.71        0.51         1.22
NE HARRISON CO       0.00        0.46         0.46
NW HARRISON CO       0.30        0.12         0.42
OCEANS SPRINGS       0.03        0.93         0.96
PICAYUNE 4NE         0.37        0.42         0.79
TYLERTOWN 2WNW       0.83        0.37         1.10
WORTHAM              0.25        0.37         0.62
TYLERTWON            0.09        0.15         0.24
WAVELAND             TR          0.33         0.33

D. STORM SURGE

SOUTHEAST LOUISIANA

NOAA COASTAL TIDE STATIONS
  GRAND ISLE...........2.0 FT MLLW    1736UTC
  SW PASS MS RIVER.....2.5 FT MLLW    1700UTC

ST BERNARD PARISH...LAKE BORGNE
  BAYOU BIENVENUE......3.9 FT  NGVD   2300UTC
  BAYOU DUPRE..........4.1 FT  NGVD   1800UTC

LAKE PONTCHARTRAIN 
  NOAA MID LAKE PONTCH.  2.4 FT NGVD  2330UTC
  ORLEANS LEVEE BOARD 
    SOUTH SHORE HARBOR   3.0 FT NGVD  2300UTC
    INDUSTRIAL CANAL     3.2 FT NGVD  1900UTC

RIGOLETES-COE            3.3 FT NGVD  0000UTC    07/11/2005


MISSISSIPPI COAST
 NOAA TIDE GAGES
   WAVELAND              4.0 FT MLLW   1454 UTC
   OCEAN SPRINGS         3.3 FT MLLW   1412 UTC
   BILOXI                3.4 FT MLLW   1418 UTC

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

E. BEACH EROSION
NONE.

F. FLOODING OR FLASH FLOODING
NONE.

G. TORNADOES
NONE.

H. STORM EFFECT
MINIMAL EFFECTS IN JACKSON COUNTY.