Alert archive / Mississippi / Flash Flood Warnings in 2017

Flash Flood Warning 13, NWS New Orleans, LA

June 22, 2017Jackson County, Mississippi

NWS New Orleans, LA issued this flash flood warning at Jun 22, 2017, 5:02 AM CDT for Jackson County, Mississippi. It was in force for 4 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
Jun 22, 2017, 5:02 AM CDT (10:02 UTC)
Expired
Jun 22, 2017, 9:00 AM CDT
In force
4 hr
Issued by
NWS New Orleans, LA
Area
Storm-based polygon
Flood severity
None

County Jackson County, MS

The radar

The Mobile radar (KMOB), 48 km from the middle of the area, began a volume at 10:03 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
Jun 22, 7:30 AM CDTFLASH FLOOD2 Nne Vancleave, MSWATER OVER MCGREGOR ROAD... IMPASSABLE TO VEHICLES. TIME IS APPROXIMATE.
Jun 22, 7:30 AM CDTFLASH FLOODSe Gulf Park Estates, MSFLOODED STREETS IMPASSABLE TO VEHICLES AND A SMALL SUBDIVISON STREET WASHED OUT IN THE GULF PARK ESTATES AREA. TIME ESTIMATED BY RADAR.
Jun 22, 7:30 AM CDTHEAVY RAIN 5.652 E Ocean Springs, MS5.65 INCHES MEASURED FROM THE BAND OF RAIN IN JACKSON COUNTY THIS MORNING... 12.3 INCHES STORM TOTAL

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

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 00:00Z, 10.0 hours before the alert went out and 105 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, Slidell Radar S, LA at 00:00Z on 2017-06-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 771 joules per kilogram.LCLEL10008507005003002001001 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, Slidell Radar S, LA at 00:00Z on 2017-06-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 98 square meters per square second.193958Sfc1 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
771 J/kg
Mixed-layer CIN
-1 J/kg
Mixed-layer LCL
593 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
98 m²/s²
0-3 km storm-relative helicity
126 m²/s²
Significant tornado parameter
0.2
Supercell composite
3.1

Open this sounding in Storm Lab

The text

As transmitted.

294 
WGUS54 KLIX 221002
FFWLIX
MSC059-221400-
/O.NEW.KLIX.FF.W.0013.170622T1002Z-170622T1400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service New Orleans LA
502 AM CDT THU JUN 22 2017

The National Weather Service in New Orleans has issued a

* Flash Flood Warning for...
  Jackson County in southern Mississippi...

* Until 900 AM CDT

* At 500 AM CDT, Doppler radar indicated heavy rain moving off the 
  Gulf of Mexico across Jackson County. Up to two inches of rain 
  have already fallen on ground already saturated from previous 
  rainfall. 

* Some locations that will experience flooding include...
  Biloxi, Ocean Springs, Moss Point, St. Martin, Escatawpa, Gautier,
  Wade, Latimer, Big Point, Helena, Gulf Hills, Hurley, Vancleave,
  Gulf Park Estates and Hickory Hills.

Additional rainfall of 1 to 3 inches with isolated higher amounts 
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 3033 8840 3033 8843 3031 8845 3032 8860
      3034 8864 3033 8868 3035 8887 3038 8888
      3039 8888 3039 8886 3041 8886 3041 8888
      3074 8886 3072 8842 3040 8840 3038 8840
      3038 8841 3037 8840

$$
2 follow-up statements
380 
WGUS74 KLIX 221235
FFSLIX

Flash Flood Statement
National Weather Service New Orleans LA
735 AM CDT THU JUN 22 2017

MSC059-221400-
/O.CON.KLIX.FF.W.0013.000000T0000Z-170622T1400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Jackson MS-
735 AM CDT THU JUN 22 2017

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 900 AM CDT FOR
JACKSON COUNTY...

At 733 AM CDT, Doppler radar indicated thunderstorms producing heavy 
rain across the warned area. Up to 4 inches of rain has fallen over 
portions of Jackson County since 4 AM CDT. 

Some locations that will experience flooding include...
Biloxi, Ocean Springs, Moss Point, St. Martin, Escatawpa, Gautier,
Wade, Latimer, Big Point, Helena, Gulf Hills, Hurley, Vancleave, Gulf
Park Estates and Hickory Hills.

Additional rainfall amounts of 1 to 3 inches with locally higher 
amounts are still possible across Jackson County through 9 AM CDT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

&&

LAT...LON 3033 8840 3033 8843 3031 8845 3032 8860
      3034 8864 3033 8868 3035 8887 3038 8888
      3039 8888 3039 8886 3041 8886 3041 8888
      3074 8886 3072 8842 3040 8840 3038 8840
      3038 8841 3037 8840

$$
023 
WGUS74 KLIX 221238 CCA
FFSLIX

Flash Flood Statement
National Weather Service New Orleans LA
738 AM CDT THU JUN 22 2017

MSC059-221400-
/O.CON.KLIX.FF.W.0013.000000T0000Z-170622T1400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Jackson MS-
738 AM CDT THU JUN 22 2017

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 900 AM CDT FOR
JACKSON COUNTY...

At 736 AM CDT, Doppler radar indicated thunderstorms producing heavy 
rain across the warned area. Up to 4 inches of rain has fallen over 
portions of Jackson County since 4 AM CDT. 

Some locations that will experience flooding include...
Ocean Springs, Moss Point, St. Martin, Escatawpa, Gautier, Wade, 
Latimer, Big Point, Helena, Gulf Hills, Hurley, Vancleave, Gulf Park 
Estates and Hickory Hills.

Additional rainfall amounts of 1 to 3 inches with locally higher 
amounts are still possible across Jackson County through 9 AM 
CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

&&

LAT...LON 3033 8840 3033 8843 3031 8845 3032 8860
      3034 8864 3033 8868 3035 8887 3038 8888
      3039 8888 3039 8886 3041 8886 3041 8888
      3074 8886 3072 8842 3040 8840 3038 8840
      3038 8841 3037 8840

$$

The office that day

Everything else NWS New Orleans, LA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 21, 9:34 PM CDTRiver Flood WarningLIXHarrison61 hr
Jun 22, 7:24 AM CDTSpecial Weather StatementLIXJackson36 min
Jun 22, 9:06 AM CDTFlash Flood WarningLIXHarrison, Jackson3 hr
Jun 22, 12:25 PM CDTTornado WarningLIXAmite, Pike20 min
Jun 22, 12:59 PM CDTSpecial Weather StatementLIXPike46 min
Jun 22, 6:39 PM CDTFlash Flood WarningLIXJackson7 hr

Nearby

Flash Flood Warnings in Mississippi, 2017Every flash flood warning in 2017

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.