Alert archive / Louisiana / Flash Flood Warnings in 2012
Flash Flood Warning 72, NWS New Orleans, LA
NWS New Orleans, LA issued this flash flood warning at Aug 30, 2012, 11:11 AM CDT for Tangipahoa Parish, Louisiana; Pike County, Mississippi. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Aug 30, 2012, 11:11 AM CDT (16:11 UTC)
- Expired
- Aug 30, 2012, 2:00 PM CDT
- In force
- 3 hr
- Issued by
- NWS New Orleans, LA
- Area
- Storm-based polygon
- Emergency
- Flash flood emergency
- Flood severity
- None
Counties Tangipahoa Parish, LA, Pike County, MS
The nearest sounding before it
Slidell Radar S, LA (KSIL), launched 12:00Z, 4.2 hours before the alert went out and 116 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 0 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- 282 m²/s²
- 0-3 km storm-relative helicity
- 332 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 5.4
The text
As transmitted, in the capitals the NWS used until 2016.
716
WGUS54 KLIX 301611
FFWLIX
LAC105-MSC113-301900-
/O.NEW.KLIX.FF.W.0072.120830T1611Z-120830T1900Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE NEW ORLEANS LA
1111 AM CDT THU AUG 30 2012
THE NATIONAL WEATHER SERVICE IN NEW ORLEANS HAS ISSUED A
* FLASH FLOOD WARNING FOR...
NORTH CENTRAL TANGIPAHOA PARISH IN SOUTHEAST LOUISIANA...
SOUTHWESTERN PIKE COUNTY IN SOUTHERN MISSISSIPPI...
* UNTIL 200 PM CDT
* AT 1050 AM CDT...A MANDATORY EVACUATION HAS BEEN ORDERED FOR ALL
LOW LYING AREAS AND ALONG THE TANGIPAHOA RIVER IN NORTHERN
TANGIPAHOA PARISH DUE TO THE POTENTIAL FAILURE OF THE LAKE
TANGIPAHOA DAM...ALSO KNOWN AS THE PERCY QUIN DAM...IN
SOUTHERN MISSISSIPPI. AGAIN...A MANDATORY EVACUATION HAS BEEN
ORDERED FOR ALL LOW LYING AREAS AND ALONG THE TANGIPAHOA RIVER IN
NORTHERN TANGIPAHOA PARISH DUE TO THE POTENTIAL FAILURE OF THE
LAKE TANGIPAHOA DAM...ALSO KNOWN AS THE PERCY QUIN DAM...IN
SOUTHERN MISSISSIPPI.
THIS IS A FLASH FLOOD EMERGENCY FOR KENTWOOD...AND OTHER LOW LYING
LOCATIONS ALONG THE TANGIPAHOA RIVER.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS
SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE.
&&
LAT...LON 3099 9048 3103 9047 3108 9049 3111 9050
3115 9054 3118 9054 3118 9051 3115 9050
3111 9045 3109 9045 3100 9043 3093 9046
3089 9047 3090 9052 3093 9052
$$
22/TD1 follow-up statement
375
WGUS74 KLIX 301900
FFSLIX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE NEW ORLEANS LA
200 PM CDT THU AUG 30 2012
LAC105-MSC113-301904-
/O.EXP.KLIX.FF.W.0072.000000T0000Z-120830T1900Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
PIKE MS-TANGIPAHOA LA-
200 PM CDT THU AUG 30 2012
...THE FLASH FLOOD WARNING WILL EXPIRE AT 200 PM CDT FOR SOUTHWESTERN
PIKE COUNTY...AND NORTH CENTRAL TANGIPAHOA PARISH...
OFFICIALS CONTINUE TO MONITOR THE STATE OF THE LAKE TANGIPAHOA DAM.
IF THE CONDITION OF THE DAM DETERIORATES TO THE POINT WHERE FAILURE
IS IMMINENT...ANOTHER FLASH FLOOD WARNING WILL BE ISSUED FOR
RESIDENTS DOWNSTREAM ALONG THE TANGIPAHOA RIVER.
LAT...LON 3099 9048 3103 9047 3108 9049 3111 9050
3115 9054 3118 9054 3118 9051 3115 9050
3111 9045 3109 9045 3100 9043 3093 9046
3089 9047 3090 9052 3093 9052
$$
DUNNThe office that day
Everything else NWS New Orleans, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 29, 7:09 PM CDT | Flash Flood Warning | LIX | Ascension, East Baton Rouge, Livingston, Tangipahoa | 6 hr |
| Aug 29, 7:42 PM CDT | Flash Flood Warning | LIX | Saint Tammany, Washington | 4 hr |
| Aug 29, 10:54 PM CDT | River Flood Warning | LIX | East Baton Rouge | 23 hr |
| Aug 29, 11:02 PM CDT | River Flood Warning | LIX | East Baton Rouge, Livingston | 4 days |
| Aug 29, 11:14 PM CDT | River Flood Warning | LIX | East Baton Rouge | 6 days |
| Aug 29, 11:16 PM CDT | River Flood Warning | LIX | Saint Helena | 58 hr |
| Aug 29, 11:20 PM CDT | River Flood Warning | LIX | Saint Helena | 69 hr |
| Aug 29, 11:22 PM CDT | River Flood Warning | LIX | Livingston | 3 days |
| Aug 29, 11:31 PM CDT | River Flood Warning | LIX | Tangipahoa | 58 hr |
| Aug 29, 11:38 PM CDT | River Flood Warning | LIX | Saint Tammany | 3 days |
| Aug 29, 11:45 PM CDT | Flash Flood Warning | LIX | Washington | 5 hr |
| Aug 29, 11:47 PM CDT | River Flood Warning | LIX | Saint Tammany | 47 hr |
| Aug 30, 12:06 AM CDT | River Flood Warning | LIX | Tangipahoa | 71 hr |
| Aug 30, 1:52 AM CDT | Flash Flood Warning | LIX | Saint Tammany | 3 hr |
| Aug 30, 4:58 AM CDT | Flash Flood Warning | LIX | Saint Tammany | 4 hr |
| Aug 30, 8:01 AM CDT | River Flood Warning | LIX | Ascension, Livingston | 7 days |
| Aug 30, 8:01 AM CDT | River Flood Warning | LIX | Livingston | 6 days |
| Aug 30, 9:17 AM CDT | Tornado Warning | LIX | Orleans, Saint Tammany | 28 min |
| Aug 30, 9:42 AM CDT | River Flood Warning | LIX | Ascension, Livingston | 5 days |
| Aug 30, 9:43 AM CDT | Flash Flood Warning | LIX | Saint Tammany | 3 hr |
| Aug 30, 1:20 PM CDT | Flash Flood Warning | LIX | Saint Charles, Saint John the Baptist | 3 hr |
| Aug 30, 4:21 PM CDT | Coastal Flood Warning | LIX | Saint Bernard, Saint James, Saint John the Baptist | 49 hr |
| Aug 30, 4:34 PM CDT | River Flood Warning | LIX | Tangipahoa | 48 hr |
| Aug 29, 7:18 PM CDT | Tornado Warning | LIX | Jackson | 27 min |
| Aug 29, 8:12 PM CDT | Flash Flood Warning | LIX | Harrison, Jackson | 8 hr |
| Aug 29, 8:28 PM CDT | Tornado Warning | LIX | Jackson | 62 min |
| Aug 29, 9:27 PM CDT | Tornado Warning | LIX | Jackson | 63 min |
| Aug 29, 11:29 PM CDT | River Flood Warning | LIX | Pike | 59 hr |
| Aug 29, 11:31 PM CDT | Tornado Warning | LIX | Hancock, Pearl River | 29 min |
| Aug 29, 11:54 PM CDT | Tornado Warning | LIX | Hancock, Pearl River | 36 min |
| Aug 30, 2:33 AM CDT | Tornado Warning | LIX | Hancock, Harrison, Pearl River | 27 min |
| Aug 30, 4:17 AM CDT | Flash Flood Warning | LIX | Jackson | 3 hr |
| Aug 30, 5:31 AM CDT | Tornado Warning | LIX | Jackson | 29 min |
| Aug 30, 6:50 AM CDT | Tornado Warning | LIX | Jackson | 40 min |
| Aug 30, 7:12 AM CDT | Flash Flood Warning | LIX | Jackson | 4 hr |
| Aug 30, 7:29 AM CDT | Tornado Warning | LIX | Jackson | 31 min |
| Aug 30, 7:30 AM CDT | Flash Flood Warning | LIX | Jackson | 3 hr |
| Aug 30, 8:26 AM CDT | Flash Flood Warning | LIX | Pike | 3 hr |
| Aug 30, 10:32 AM CDT | River Flood Warning | LIX | Jackson | 10 days |
| Aug 30, 11:29 AM CDT | Flash Flood Warning | LIX | Jackson | 4 hr |
| Aug 30, 1:19 PM CDT | River Flood Warning | LIX | Harrison | 34 hr |
| Aug 30, 3:24 PM CDT | Tornado Warning | LIX | Jackson | 36 min |
Nearby
Flash Flood Warnings in Louisiana, 2012Flash Flood Warnings in Mississippi, 2012Every flash flood warning in 2012
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive.