Alert archive / Louisiana / Flash Flood Warnings in 2016

Flash Flood Warning 111, NWS Jackson, MS

April 11, 20167 parishes in Louisiana; Issaquena County, Warren County, Mississippi

NWS Jackson, MS issued this flash flood warning at Apr 11, 2016, 9:40 PM CDT for 7 parishes in Louisiana; Issaquena County, Warren County, Mississippi. It was in force for 3 hr. 3 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
Apr 11, 2016, 9:40 PM CDT (02:40 UTC)
Expired
Apr 12, 2016, 12:45 AM CDT
In force
3 hr
Issued by
NWS Jackson, MS
Area
Storm-based polygon
Flood severity
None

Counties East Carroll Parish, LA, Franklin Parish, LA, Madison Parish, LA, Morehouse Parish, LA, Richland Parish, LA, Tensas Parish, LA, West Carroll Parish, LA, Issaquena County, MS, Warren County, MS

The radar

The Jackson/Brandon,MS radar (KDGX), 127 km from the middle of the area, began a volume at 02:39 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
Apr 12, 12:00 AM CDTFLASH FLOOD1 Ese Redwood, MSREDWOOD RD WAS BLOCKED BY FLOODING AND A MUDSLIDE NEAR THE NORTHEAST VOLUNTEER FIRE DEPT
Apr 12, 12:00 AM CDTFLASH FLOOD1 Se Redwood, MSA MUDSLIDE OCCURRED ALONG WHATLEY HOLLOW RD
Apr 12, 12:00 AM CDTFLASH FLOOD3 E Vicksburg, MSTHE INTERSECTION OF OLD HWY 27 AND PAXTON RD WAS FLOODED

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

The nearest sounding before it

Shreveport, LA (KBAD), launched 00:00Z, 2.7 hours before the alert went out and 228 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, Shreveport, LA at 00:00Z on 2016-04-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1952 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Shreveport, LA at 00:00Z on 2016-04-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 173 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
1952 J/kg
Mixed-layer CIN
-14 J/kg
Mixed-layer LCL
477 m above ground
0-6 km bulk shear
46 kt
0-1 km storm-relative helicity
173 m²/s²
0-3 km storm-relative helicity
194 m²/s²
Significant tornado parameter
1.9
Supercell composite
9.4

Open this sounding in Storm Lab

The text

As transmitted.

685 
WGUS54 KJAN 120240
FFWJAN
LAC035-041-065-067-083-107-123-MSC055-149-120545-
/O.NEW.KJAN.FF.W.0111.160412T0240Z-160412T0545Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE JACKSON MS
940 PM CDT MON APR 11 2016

THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHWESTERN WEST CARROLL PARISH IN NORTHEASTERN LOUISIANA...
  NORTHEASTERN FRANKLIN PARISH IN NORTHEASTERN LOUISIANA...
  RICHLAND PARISH IN NORTHEASTERN LOUISIANA...
  MADISON PARISH IN NORTHEASTERN LOUISIANA...
  SOUTH CENTRAL MOREHOUSE PARISH IN NORTHEASTERN LOUISIANA...
  SOUTHERN EAST CARROLL PARISH IN NORTHEASTERN LOUISIANA...
  NORTH CENTRAL TENSAS PARISH IN NORTHEASTERN LOUISIANA...
  WARREN COUNTY IN WEST CENTRAL MISSISSIPPI...
  SOUTHERN ISSAQUENA COUNTY IN WEST CENTRAL MISSISSIPPI...

* UNTIL 1245 AM CDT

* AT 938 PM CDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING
  HEAVY RAIN ACROSS THE WARNED AREA. FOUR TO FIVE INCHES OF RAIN
  HAVE FALLEN. FLASH FLOODING IS EXPECTED TO BEGIN SHORTLY.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  VICKSBURG...TALLULAH...RAYVILLE...MANGHAM...TRANSYLVANIA...START...
  REDWOOD...VALLEY PARK...DELHI...BAKERS...ALTO...LE TOURNEAU...YOKENA...
  WARDEN...MONTICELLO...BOVINA...FITLER...TENDAL...OAK RIDGE AND
  YOUNGTON.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TURN AROUND...DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.

&&

LAT...LON 3239 9200 3252 9190 3259 9193 3278 9104
      3273 9096 3266 9096 3266 9085 3250 9059
      3234 9063 3234 9071 3225 9071 3217 9079
      3220 9201 3225 9199 3228 9202

$$

17

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 11, 7:52 PM CDTFlash Flood WarningJANEast Carroll, Morehouse, West Carroll3 hr
Apr 11, 10:47 PM CDTAreal Flood WarningJANEast Carroll, Morehouse, West Carroll12 hr
Apr 12, 12:47 AM CDTAreal Flood WarningJANEast Carroll, Franklin, Madison, Morehouse, Richland, Tensas and 1 more3 hr
Apr 12, 1:11 AM CDTSpecial Weather StatementJANCatahoula34 min
Apr 11, 7:55 PM CDTFlash Flood WarningJANCovington, Jasper, Jones, Smith9 hr
Apr 11, 8:39 PM CDTFlash Flood WarningJANHinds, Madison, Rankin3 hr
Apr 11, 8:53 PM CDTSpecial Weather StatementJANRankin37 min
Apr 11, 9:09 PM CDTRiver Flood WarningJANNoxubee57 hr
Apr 11, 9:13 PM CDTRiver Flood WarningJANMadison, Yazoo12 days
Apr 11, 9:13 PM CDTRiver Flood WarningJANHinds, Warren14 days
Apr 11, 9:17 PM CDTRiver Flood WarningJANLeake6 days
Apr 11, 9:17 PM CDTRiver Flood WarningJANLeake8 days
Apr 11, 9:17 PM CDTRiver Flood WarningJANLeake4 days
Apr 11, 9:17 PM CDTRiver Flood WarningJANAttala24 hr
Apr 11, 9:17 PM CDTRiver Flood WarningJANLeake6 days
Apr 11, 9:19 PM CDTRiver Flood WarningJANHinds, Rankin71 hr
Apr 11, 9:19 PM CDTRiver Flood WarningJANCopiah, Simpson9 days
Apr 11, 11:11 PM CDTRiver Flood WarningJANClarke59 hr
Apr 11, 11:48 PM CDTAreal Flood WarningJANHinds, Madison, Rankin6 hr
Apr 12, 5:02 AM CDTAreal Flood WarningJANCovington, Jasper, Jones, Smith3 hr
Apr 12, 5:50 AM CDTSpecial Weather StatementJANLamar25 min
Apr 12, 10:23 AM CDTRiver Flood WarningJANLawrence9 days
Apr 12, 10:23 AM CDTRiver Flood WarningJANMarion9 days
Apr 12, 10:23 AM CDTRiver Flood WarningJANSimpson50 hr
Apr 12, 10:30 AM CDTRiver Flood WarningJANJones48 hr

Nearby

Flash Flood Warnings in Louisiana, 2016Flash Flood Warnings in Mississippi, 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.