Severe thunderstorms will be possible over portions of the Central Plains today. An Moderate Risk (level 4 of 5) has been issued for western and central Kansas. The main threats will be damaging wind gusts, large hail, and a few tornadoes. The severe weather threat continues across the Central U.S. over the next few days. Read More >
Hurricane Ivan Post Storm Report
The initial report contains extreme wind, pressure, tide, and rainfall data that occurred over Southeast Louisiana and Coastal Mississippi on September 15-16 when Hurricane Ivan passed just to the east of the area before making landfall as a powerful Category 3 Hurricane near Gulf Shores-Orange Beach, Alabama. The report also contains some preliminary information on the hurricane's impact on the region. While the area was spared the brunt of the hurricane=s worst damage, some hurricane force wind gusts occurred over lower Plaquemines Parish, as well as extreme eastern portion of the Mississippi Gulf Coast, producing wind damage to mobile homes and roof damage to other structures, as well as downing trees and power lines.
The second report below contains meteorological data and storm impact over Southeast Louisiana on September 22-23, 2004 when the remnant circulation from Ivan regenerated into tropical storm over the middle Gulf of Mexico on September 22nd before moving onshore extreme southwest Louisiana late on September 23rd. Affects across coastal areas of southeast Louisiana were minimal, with only minor flooding of low lying coastal roadways reported early on September 23rd.
...SECOND REPORT... POST-TROPICAL CYCLONE REPORT...TROPICAL STORM IVAN NATIONAL WEATHER SERVICE NEW ORLEANS LA 400 PM CDT MON SEP 27 2004 THIS REPORT COVERS THE PERIOD SEPT 22-23 2004 WHEN REMNANTS OF IVAN REGENERATED TO A TROPICAL STORM IN THE GULF OF MEXICO. A SEPARATE POST STORM REPORT COVERS THE AREA CONDITIONS DURING THE INITIAL LANDFALL IN NORTHERN GULF COAST SEPT 15-16 2004. A. HIGHEST WINDS... ASOS....2 MINUTE SUSTAINED WINDS LOCATION DIR/SPEED KT DATE TIME BOOTHEVILLE BVE SUSTAINED 090/23 KT 09/23/2004 0135UTC PEAK 080/28 KT 09/23/2004 0411UTC COASTAL OBSERVATIONS...NOAA NDBC BUOY...CMAN NOAA SW PASS CMAN...BURLI WIND EQUIPMENT HEIGHT 30.5 M / 100 FT SUSTAINED 094/36 KT 09/23/2004 0500UTC PEAK 090/42 KT 09/23/2004 0429UTC NOAA GRAND ISLE CMAN...GDIL1 SUSTAINED 084/24 KT 09/23/2004 0820UTC PEAK 080/31 KT 09/23/2004 0752UTC OTHER COASTAL OBSERVATIONS...LOUISIANA LUMCON AT COCODRIE LA TERREBONNE PARISH PEAK 070/29 KT 09/23/2004 0800UTC LUMCON AT TAMBOUR BAY TERREBONNE PARISH PEAK 070/33 KT 09/23/2004 0700UTC LSU CITRUS AG STATION BOOTHEVILLE LA PLAQUEMINES PARISH PEAK 123/26 KT 09/23/2004 1500UTC DIRECTION ESTIMATED LSU SUGARCANE AG STATION HOUMA TERREBONNE PARISH PEAK 111/24KT 09/23/2004 1600UTC B. LOWEST PRESSURE PRES MB DATE TIME UTC BOOTHEVILLE BVE.........1014.6 09/23/2004 0934 GRAND ISLE NOAA CMAN....1013.6 09/23/2004 0800 BURWOOD NOAA CMMAN......1013.8 09/23/2004 0500 LUMCON COCORIE..........1013.0 09/23/2004 1100 LUMCON TAMBOR BAY.......1012.2 09/23/2004 0800 C. STORM TOTAL RAINFALL STORM TOTAL RAINFALL ASOS OBSERVATIONS STORM TOTAL 48 HOURS ENDING 1200UTC 09/24/2004 BOOTHEVILLE...............0.39 INCHES INCOMPLETE DATA COOP OBSERVATIONS STORM TOTAL 48 HOURS ENDING 1200UTC 09/24/2004 PLAQUEMINE PARISH LA BURAS.....................0.64 LSU AG STATION CITRUS 2 NW PT SULPHUR...0.30 LAFOURCHE PARISH LA 3SSE THIBODAUX............1.03 GALLIANO..................0.86 TERREBONNE PARISH LA LSU AG STATION SUGARCANE 3NW HOUMA.........0.47 D. STORM SURGE NOAA PORT FOURCHON 2.68 FT MLLW 09/23/2004 1148UTC NOAA GRAND ISLE 2.60 FT MLLW 09/23/2004 0924UTC SW PASS MS RIVER LUMCON COCODRIE 2.52 FT MLLW 09/23/2004 1300UTC LUMCON TAMBOR BAY 3.07 FT MLLW 09/23/2004 1100UTC CAILLOU BAY SW OF COCODRIE 3.38 FT NGVD 09/23/2004 1000UTC E. BEACH EROSION NO SIGNIFICANT EROSION. F. FLOODING OR FLASH FLOODING NONE. G. TORNADOES NONE. H. STORM EFFECTS MINOR COASTAL FLOODING OF LOW LYING ROADWAYS AT TIME OF HIGH TIDE EARLY THURSDAY...SEP 23...IN SOUTHERN PORTIONS OF LAFOURCHE AND TERREBONNE PARISHES AND GRAND ISLE.
...INITIAL REPORT... POST-TROPICAL CYCLONE REPORT...HURRICANE IVAN NATIONAL WEATHER SERVICE NEW ORLEANS LA 430 PM CDT TUE SEP 21 2004 A. HIGHEST WINDS... ASOS....2 MINUTE SUSTAINED WINDS LOCATION DIR/SPEED KT DATE TIME PASCAGOULA...PQL SUSTAINED 360/37 KT 09/15/2004 2349UTC PEAK 360/51 KT 09/15/2004 2349UTC *INCOMPLETE DATA OUT OF SERVICE AT 0553UTC GULFPORT... GPT SUSTAINED 340/40 KT 09/16/2004 0059UTC PEAK 340/53 KT 09/16/2004 0658UTC *INCOMPLETE DATA DUE TO POWER FAILURE KEESLER AFB BIX SUSTAINED 340/42 KT 09/16/2004 0644UTC PEAK 340/62 KT 09/16/2004 0644UTC SLIDELL ASD SUSTAINED 020/32 KT 09/16/2004 0011UTC PEAK 030/37 KT 09/16/2004 0011UTC NEW ORLEANS LAKEFRONT NEW SUSTAINED 010/41 KT 09/16/2004 0206UTC PEAK 020/48 KT 09/16/2004 0205UTC NEW ORLEANS ARMSTRONG INTL APRT MSY SUSTAINED 010/33 KT 09/15/2004 2138UTC PEAK 010/40 KT 09/15/2004 2138UTC BOOTHEVILLE BVE SUSTAINED 050/31 KT 09/15/2004 1551UTC PEAK 050/42 KT 09/15/2004 1551UTC LAST OBSERVATION AT 1604UTC BEFORE POWER FAILED BATON ROUGE BTR SUSTAINED 350/21 KT 09/16/2004 0050UTC PEAK 040/28 KT 09/15/2004 1954UTC BELLE CHASE NAVAL AIR STATION NBG SUSTAINED 020/23 KT 09/15/2004 2202UTC PEAK 020/31 KT 09/15/2004 2205UTC COASTAL OBSERVATIONS...NOAA NDBC BUOY...CMAN NOAA BUOY 42007 SUSTAINED 343/49 KT 09/16/2004 0540UTC PEAK 350/68 KT 09/16/2004 0542UTC NOAA BUOY 42040 SUSTAINED 062/55 KT 09/16/2004 2050UTC SUSTAINED 059/55 KT 09/15/2004 2130UTC PEAK 070/74 KT 09/15/2004 2043UTC NOAA SW PASS CMAN...BURLI WIND EQUIPMENT HT 30.5 M / 100 FT SUSTAINED 348/72 KT 09/15/2004 2310UTC PEAK 350/87 KT 09/15/2004 2320UTC NOAA GRAND ISLE CMAN...GDIL1 SUSTAINED 355/46 KT 09/16/2004 2310UTC PEAK 360/61 KT 09/16/2004 2308UTC OTHER COASTAL OBSERVATIONS...MISSISSIPPI GAUTIER MS AT U.S. HIGHWAY 90 JACKSON COUNTY INCOMPLETE DATA PEAK 316/51 KT 09/16/2004 0700UTC OCEAN SPRINGS MS - OLD FORT BAYOU JACKSON COUNTY PEAK 006/43 KT 09/16/2004 0415UTC ORANGE GROVE MS AT INTERSTATE HIGHWAY 10 JACKSON COUNTY PEAK 337/46 KT 09/16/2004 0715UTC BILOXI HARBOR-POINTE CADET HARRISON COUNTY SUSTAINED 042/47 KT 09/16/2004 0245UTC PEAK 68 KT 09/16/2004 0230UTC USCG MERRIL SHELL BANK LIGHTHOUSE SOUTH OF PASS CHRISTIAN MS PEAK 010/64 KT 09/16/2004 0500UTC PASCAGOULA MS - JACKSON COUNTY EOC - PEAK WIND 360/76 KTS 09/16/2004 0600UTC DIRECTION/TIME OF GUST ESTIMATED. WIND EQUIPMENT ON ROOF OF 2 STORY BUILDING. HIGHER BUILDINGS TO NORTH OF SITE. WAVELAND MS - HANCOCK COUNTY EOC SUSTAINED 360/20 KT 09/16/2004 0400UTC PEAK 360/53 KT 09/16/2004 0430UTC OTHER COASTAL OBSERVATIONS...LOUISIANA NE BAY GARDENE NEAR POINTE A LA HACHE PLAQUMINES PARISH PEAK 004/60 KT 09/16/2004 0400UTC BARATARIA BAY NORTH OF GRAND ISLE LA PLAQUEMINES PARISH PEAK 090/44 KT 09/15/2004 1700UTC LITTLE LAKE EAST OF GALLIANO LA JEFFERSON PARISH PEAK 030/41 KT 09/15/2004 2300UTC LAKE SALVADOR NEAR LAFFITTE JEFFERSON PARISH PEAK 338/34 KT 09/16/2004 0300UTC LUMCON AT COCODRIE LA TERREBONNE PARISH PEAK 350/36 KT 09/16/2004 0000UTC LSU CITRUS AG STATION BOOTHEVILLE LA PLAQUEMINES PARISH PEAK 360/52KT 09/16/2004 0000UTC DIRECTION ESTIMATED LAKE PONTCHARTRAIN AUTOMATED NWS GAGES MANDEVILLE SUATINED 022/30 KT 09/16/2004 0030UTC PEAK 33 KT 09/16/2004 2200UTC MID LAKE SUSTAINED 356/35 KT 09/16/2004 0330UTC PEAK 46 KT 09/16/2004 0500UTC B. LOWEST PRESSURE PRES MB DATE TIME UTC PASCAGOULA PQL*..........975.6 09/16/2004 0536 UTC GULFPORT GPT* ..........983.7 09/16/2004 0703 KEESLER AFB BIX..........982.9 09/16/2004 0655 SLIDELL ASD.............994.2 09/16/2004 0147 NEW ORLEANS LAKEFRONT NEW.......994.2 09/16/2004 0125 NEW ORLEANS AMRSTRONG INTL MSY...........998.0 09/16/2004 0530 998.0 09/16/2004 0644 BELLE CHASE NBG..........996.6 09/16/2004 0452 BATON ROUGE.............1002.0 09/16/2004 0237 GRAND ISLE NOAA CMAN.....994.2 09/16/2004 0000 BURWOOD NOAA CMMAN.......983.6 09/16/2000 2300 *INCOMPLETE OBSERVATIONS C. STORM TOTAL RAINFALL STORM TOTAL RAINFALL ASOS OBSERVATIONS STORM TOTAL 72 HOURS ENDING 1200UTC 09/17/2004 PASCAGOULA PQL.......... 1.15 INCHES INCOMPLETE DATA GULFPORT GPT.............1.70 BILOXI AFB BIX..........3.28 SLIDELL ASD..............0.26 NEW ORLEANS LAKEFRONT NEW.......0.08 NEW ORLEANS ARMSTRONG INTL MSY ...TRACE BELLE CHASE NAS NBG.....0.14 COOP OBSERVATIONS STORM TOTAL 72 HOURS ENDING 1200UTC 09/17/2004 JACKSON COUNTY MS 3NNE PASCAGOULA...........5.70 INCHES VAN CLEAVE................3.73 PASCAGOULA EOC............6.29 HARRISON COUNTY MS 3NNW GULFPORT.............1.60 HANCOCK COUNTY MS ANSLEY....................1.00 BAY ST. LOUIS.............0.67 ST. TAMMANY PARISH LA SLIDELL...................0.48 ST. BERNARD PARISH LA CHALMETTE.................0.15 PLAQUEMINE PARISH LA BURAS.....................2.50 LSU CITRUS AG.............1.05 D. STORM SURGE MISSISSIPPI COAST BILOXI HARBOR NOAA 4.07 FT MLLW 9/16/2004 0330 UTC WAVELAND NOAA 4.76 FT MLLW 9/16/2004 0648 UTC SOUTHEAST LOUISIANA ST BERNARD PARISH...LAKE BORGNE BAYOU BIENVENUE 7.18 FT NGVD 09/16/2004 0000UTC BAYOU DUPRE 7.56 FT NGVD 09/16/2004 0000UTC BAYOU TERRE AUX BOEUFS 4.35 FT NGVD 09/15/2004 2300UTC PLAQUEMINES PARISH... BLACK BAY- PT A LA HACHE 8.72 FT NAVD88 09/15/2004 2100 UTC BAY GARDENE PT A LA HACHE 8.39 FT NAVD88 09/15/2004 2300 UTC LAKE PONTCHARTRAIN INDUSTRIAL CANAL 6.10 FT NGVD 09/16/2004 0200UTC MID LAKE PONTCHARTRAIN 3.51 FT NGVD 09/16/2004 0700UTC MANDEVILLLE 3.72 FT NGVD 09/16/2004 0900UTC NEW ORLEANS/ SOUTH SHORE HARBOR 4.82 FT NGVD 09/16/2004 0500UTC IRISH BAYOU 4.48 FT NGVD 09/16/2004 0300UTC FRENIER 4.10 FT NGVD 09/16/2004 0400UTC WEST OF THE MISSISSIPPI RIVER PORT FOURCHON 2.51 FT MLLW 09/15/2004 2018UTC GRAND ISLE 2.80 FT MLLW 09/15/2004 1900UTC SW PASS MS RIVER 3.82 FT MLLW 09/16/2004 2000UTC E. BEACH EROSION SIGNIFICANT BEACH EROSION IN PORTIONS OF HANCOCK COUNTY. F. FLOODING OR FLASH FLOODING NONE. G. TORNADOES NONE. H. STORM EFFECTS MAIN STORM EFFECTS IN WFO NEW ORLANS/BATON ROUGE AREA OF RESPONSIBILITY WERE IN FAR SOUTHEAST LOUISIANA AND COASTAL MISSISSIPPI. STORM SURGE WERE PRIMARILY CONFINED TO AREAS OUTSIDE OF THE HURRICANE PROTECTION LEVEES AND ALONG IMMEDIATE COASTAL AREAS. LOUISIANA... NO DIRECT FATALITIES IN SOUTHEAST LOUISIANA. 4 INDIRECT FATALTIES OF SOUTHEAST LOUISIANA RESIDENTS WHEN EVACUEES RESIDING IN ASSISTED LIVING FACILITIES AND/OR HOMEBOUND PATIENTS DIED ENROUTE TO INLAND SHELTERING DURING EVACUATION PROCESS. PRELIMINARY ESTIMATE OF 600,000 EVACUATED IN 320,000 VEHICLES FROM METRO NEW ORLEANS/SOUTHEAST LOUISIANA PLAQUEMINES PARISH...PRELIMINARY MAIN DAMAGE OCCURRED IN LOWER PLAQUEMINES PARISH PRIMARILY IN THE VENICE AND BOOTHEVILLE AREAS. 2 SCHOOLS HAD ROOF DAMAGE. 9 MOBILE HOMES DESTROYED AND 22 WITH MAJOR DAMAGE. 7 SINGLE FAMILY HOMES HAD MAJOR DAMAGE. COASTAL FLOODING OCCURRED OUTSIDE OF HURRICANE PROTECTION LEVEES. MISSISSIPPI... NO DIRECT FATALITIES IN COASTAL MISSISSIPPI. JACKSON COUNTY...PRELIMINARY PRIMARY DAMAGE WAS WIND DAMAGE TO BUILDING ROOFS...DOWNED TREES AND POWER LINES. AT LEAST 400 STRUCTURES AFFECTED WITH VARYING DEGREES OF DAMAGE. ONE APARTMENT BUILDING IN PASCAGOULA HAD SUBSTANTIAL PART OF ROOF BLOWN OFF. HANCOCK COUNTY...PRELIMINARY MINOR WIND DAMAGE PRIMARILY TO DOWNED TREE LIMBS AND A FEW POWER LINES. SIGNIFICANT BEACH EROSION. INFORMATION CONTAINED IN THIS REPORT IS PRELIMINARY...AND MAY BE UPDATED OR DELETED. ADDITIONAL DATA WILL BE INCLUDED AS IT BECOMES AVAILABLE.
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