Alert archive / Louisiana / Flash Flood Warnings in 2016

Flash Flood Warning 76, NWS Jackson, MS

March 12, 20165 counties in Mississippi; 6 parishes in Louisiana; Ashley County, Chicot County, Arkansas

NWS Jackson, MS issued this flash flood warning at Mar 12, 2016, 4:00 PM CST for 5 counties in Mississippi; 6 parishes in Louisiana; Ashley County, Chicot County, Arkansas. It was in force for 5 hr. 8 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Mar 12, 2016, 4:00 PM CST (22:00 UTC)
Expired
Mar 12, 2016, 9:00 PM CST
In force
5 hr
Issued by
NWS Jackson, MS
Area
Storm-based polygon
Flood severity
None

Counties Ashley County, AR, Chicot County, AR, East Carroll Parish, LA, Madison Parish, LA, Morehouse Parish, LA, Richland Parish, LA, Tensas Parish, LA, West Carroll Parish, LA, Claiborne County, MS, Issaquena County, MS, Sharkey County, MS, Warren County, MS, Washington County, MS

The radar

The Jackson/Brandon,MS radar (KDGX), 177 km from the middle of the area, began a volume at 22:01 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

TimeReportWhereRemark
Mar 12, 8:20 PM CSTFLOODBastrop, LANUMEROUS ROADWAYS ARE HAVING FLOODING ISSUES ACROSS THE PARISH.
Mar 12, 8:25 PM CSTFLOODEudora, ARNUMEROUS ROADWAYS ACROSS THE COUNTY ARE STILL HAVING FLOODING ISSUES
Mar 12, 8:25 PM CSTFLOODOak Grove, LASCATTERED ROADWAYS ACROSS THE PARISH ARE STILL HAVING FLOODING ISSUES.
Mar 12, 8:25 PM CSTFLOODRayville, LASOME ROADWAYS ARE STILL HAVING FLOODING ISSUES IN THE NORTH PORTION OF THE PARISH.
Mar 12, 8:30 PM CSTFLOODCrossett, ARNUMEROUS ROADWAYS ACROSS THE COUNTY ARE STILL EXPERIENCING FLOODING.
Mar 12, 8:30 PM CSTFLOODGreenville, MSSCATTERED ROADWAYS ACROSS THE COUNTY WERE STILL HAVING FLOODING ISSUES.
Mar 12, 8:30 PM CSTFLOODLake Providence, LAHIGHWAYS 582..585...596 AND 581 WERE STILL HAVING FLOODING ISSUES.
Mar 12, 8:40 PM CSTFLOODTallulah, LASOME SECONDARY ROADS WERE HAVING FLOODING ISSUES ACROSS THE PARISH

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Jackson, MS (KJAN), launched 12:00Z, 10.0 hours before the alert went out and 167 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.

Skew-T log-pSkew-T log-p diagram, Jackson, MS at 12:00Z on 2016-03-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 14 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Jackson, MS at 12:00Z on 2016-03-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 30 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
14 J/kg
Mixed-layer CIN
-23 J/kg
Mixed-layer LCL
573 m above ground
0-6 km bulk shear
45 kt
0-1 km storm-relative helicity
30 m²/s²
0-3 km storm-relative helicity
38 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

512 
WGUS54 KJAN 122200
FFWJAN
ARC003-017-LAC035-065-067-083-107-123-MSC021-055-125-149-151-130300-
/O.NEW.KJAN.FF.W.0076.160312T2200Z-160313T0300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE JACKSON MS
400 PM CST SAT MAR 12 2016

THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  CHICOT COUNTY IN SOUTHEASTERN ARKANSAS...
  ASHLEY COUNTY IN SOUTHEASTERN ARKANSAS...
  WEST CARROLL PARISH IN NORTHEASTERN LOUISIANA...
  NORTHERN RICHLAND PARISH IN NORTHEASTERN LOUISIANA...
  MADISON PARISH IN NORTHEASTERN LOUISIANA...
  MOREHOUSE PARISH IN NORTHEASTERN LOUISIANA...
  EAST CARROLL PARISH IN NORTHEASTERN LOUISIANA...
  NORTHEASTERN TENSAS PARISH IN NORTHEASTERN LOUISIANA...
  WASHINGTON COUNTY IN NORTHWESTERN MISSISSIPPI...
  WESTERN WARREN COUNTY IN WEST CENTRAL MISSISSIPPI...
  WESTERN SHARKEY COUNTY IN WEST CENTRAL MISSISSIPPI...
  CENTRAL CLAIBORNE COUNTY IN SOUTHWESTERN MISSISSIPPI...
  ISSAQUENA COUNTY IN WEST CENTRAL MISSISSIPPI...

* UNTIL 900 PM CST
    
* AT 358 PM CST...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING
  HEAVY RAIN ACROSS THE WARNED AREA. UP TO ONE TO TWO INCHES OF RAIN
  HAS ALREADY FALLEN. FLASH FLOODING IS EXPECTED TO BEGIN SHORTLY.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  GREENVILLE...BASTROP...TALLULAH...CROSSETT...LELAND...LAKE
  PROVIDENCE...RAYVILLE...HAMBURG...LAKE VILLAGE...DERMOTT...
  EUDORA...WILMOT...TRANSYLVANIA...WEST CROSSETT...NORTH CROSSETT...
  START...AVON...DELHI...OAK GROVE AND METCALFE.

ADDITIONAL RAINFALL AMOUNTS OF TWO TO FOUR INCHES ARE POSSIBLE IN
THE WARNED AREA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING.

TURN AROUND...DONT DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.

&&

LAT...LON 3321 9213 3331 9198 3340 9199 3339 9146
      3356 9145 3356 9135 3352 9132 3352 9125
      3356 9124 3353 9088 3201 9097 3214 9122
      3242 9150 3239 9200 3252 9190 3266 9191
      3271 9197 3270 9206 3301 9207 3310 9214

$$

17
1 follow-up statement
697 
WGUS74 KJAN 130027
FFSJAN

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
627 PM CST SAT MAR 12 2016

ARC003-017-LAC035-065-067-083-107-123-MSC021-055-125-149-151-130300-
/O.CON.KJAN.FF.W.0076.000000T0000Z-160313T0300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CHICOT AR-ASHLEY AR-WEST CARROLL LA-RICHLAND LA-MADISON LA-
MOREHOUSE LA-EAST CARROLL LA-TENSAS LA-WASHINGTON MS-WARREN MS-
SHARKEY MS-CLAIBORNE MS-ISSAQUENA MS-
627 PM CST SAT MAR 12 2016

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 900 PM CST FOR
CHICOT AND ASHLEY COUNTIES...WEST CARROLL...NORTHERN RICHLAND...
MADISON...MOREHOUSE...EAST CARROLL AND NORTHEASTERN TENSAS
PARISHES...WASHINGTON...WESTERN WARREN...WESTERN SHARKEY...CENTRAL
CLAIBORNE AND ISSAQUENA COUNTIES...

AT 626 PM CST...DOPPLER RADAR INDICATED HEAVY RAIN ACROSS THE WARNED
AREA. UP TO THREE INCHES OF RAIN HAVE ALREADY FALLEN. FLASH FLOODING
IS ALREADY OCCURRING.

SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
GREENVILLE...BASTROP...TALLULAH...CROSSETT...LELAND...LAKE
PROVIDENCE...RAYVILLE...HAMBURG...LAKE VILLAGE...DERMOTT...EUDORA...
WILMOT...TRANSYLVANIA...WEST CROSSETT...NORTH CROSSETT...START...
AVON...DELHI...OAK GROVE AND METCALFE.

ADDITIONAL RAINFALL AMOUNTS OF ONE TO TWO INCHES ARE POSSIBLE IN THE
WARNED AREA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING.

TURN AROUND...DONT DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.

&&

LAT...LON 3321 9213 3331 9198 3340 9199 3339 9146
      3356 9145 3356 9135 3352 9132 3352 9125
      3356 9124 3353 9088 3201 9097 3214 9122
      3242 9150 3239 9200 3252 9190 3266 9191
      3271 9197 3270 9206 3301 9207 3310 9214

$$

17

The office that day

Everything else NWS Jackson, MS issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 11, 6:08 PM CSTAreal Flood WarningJANAttala, Bolivar, Carroll, Grenada, Holmes, Humphreys and 4 more24 hr
Mar 11, 6:13 PM CSTAreal Flood WarningJANClarke, Covington, Forrest, Jasper, Jefferson Davis, Jones and 3 more24 hr
Mar 11, 6:18 PM CSTAreal Flood WarningJANChoctaw, Kemper, Lauderdale, Neshoba, Newton, Noxubee and 2 more24 hr
Mar 12, 8:29 AM CSTAreal Flood WarningJANIssaquena, Jefferson, Sharkey, Warren, Washington9 hr
Mar 12, 11:27 AM CSTRiver Flood WarningJANLauderdale, Newton16 hr
Mar 12, 3:47 PM CSTFlash Flood WarningJANAdams, Claiborne, Franklin, Jefferson5 hr
Mar 12, 4:31 PM CSTFlash Flood WarningJANBolivar, Carroll, Claiborne, Copiah, Franklin, Grenada and 17 more5 hr

Nearby

Flash Flood Warnings in Louisiana, 2016Flash Flood Warnings in Mississippi, 2016Flash Flood Warnings in Arkansas, 2016Every flash flood warning in 2016

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.