Alert archive / Mississippi / Flash Flood Warnings in 2017

Flash Flood Warning 90, NWS Jackson, MS

July 24, 2017Copiah County, Lincoln County, Mississippi

NWS Jackson, MS issued this flash flood warning at Jul 24, 2017, 11:01 AM CDT for Copiah County, Lincoln County, Mississippi. It was in force for 3 hr. 4 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
Jul 24, 2017, 11:01 AM CDT (16:01 UTC)
Expired
Jul 24, 2017, 2:00 PM CDT
In force
3 hr
Issued by
NWS Jackson, MS
Area
Storm-based polygon
Flood severity
None

Counties Copiah County, MS, Lincoln County, MS

The radar

The Jackson/Brandon,MS radar (KDGX), 80 km from the middle of the area, began a volume at 16:04 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
Jul 24, 11:09 AM CDTFLASH FLOOD4 Nw Brookhaven, MSTREE ON A POWER LINE ON NOAH TRAIL NW RD.
Jul 24, 12:40 PM CDTFLASH FLOOD1 Nw Brookhaven, MSPARTS OF LIPSEY STREET COVERED IN WATER, YARDS COMPLETELY COVERED IN WATER (PICS VIA SOCIAL MEDIA).
Jul 24, 12:55 PM CDTFLASH FLOOD2 Sw Wesson, MSWATER ON HWY 51, NORTHEAST PART OF LINCOLN COUNTY.
Jul 24, 1:55 PM CDTFLASH FLOOD8 E Brookhaven, MSWATER WAS REPORTED ACROSS OLD MALCUM RD.

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, 4.0 hours before the alert went out and 78 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 2017-07-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 279 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 2017-07-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -8 square meters per square second.1939Sfc1 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
279 J/kg
Mixed-layer CIN
-47 J/kg
Mixed-layer LCL
794 m above ground
0-6 km bulk shear
6 kt
0-1 km storm-relative helicity
-8 m²/s²
0-3 km storm-relative helicity
35 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

981 
WGUS54 KJAN 241601
FFWJAN
MSC029-085-241900-
/O.NEW.KJAN.FF.W.0090.170724T1601Z-170724T1900Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Jackson MS
1101 AM CDT MON JUL 24 2017

The National Weather Service in Jackson has issued a

* Flash Flood Warning for...
  Northern Lincoln County in south central Mississippi...
  Southern Copiah County in central Mississippi...

* Until 200 PM CDT

* At 1101 AM CDT, Doppler radar indicated heavy rain across the
  warned area. Up to three inches of rain have already fallen. Flash
  flooding is expected to begin shortly.

* Some locations that will experience flooding include...
  Brookhaven, Hazlehurst, Wesson, Loyd Star, Pleasant Hill,
  Caseyville, Martinsville, Allen, Barlow, East Lincoln, Glancy and
  Beauregard.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3167 9074 3182 9074 3184 9072 3199 9071
      3174 9017 3172 9024 3144 9025

$$

19
2 follow-up statements
700 
WGUS74 KJAN 241739
FFSJAN

Flash Flood Statement
National Weather Service Jackson MS
1239 PM CDT MON JUL 24 2017

MSC029-241747-
/O.CAN.KJAN.FF.W.0090.000000T0000Z-170724T1900Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Copiah MS-
1239 PM CDT MON JUL 24 2017

...THE FLASH FLOOD WARNING FOR SOUTHERN COPIAH COUNTY IS CANCELLED...

Flooding is no longer expected to pose a threat. Please continue to
heed any remaining road closures.

LAT...LON 3167 9074 3170 9074 3170 9042 3169 9041
      3169 9038 3170 9038 3170 9028 3171 9025
      3144 9025

$$

MSC085-241900-
/O.CON.KJAN.FF.W.0090.000000T0000Z-170724T1900Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Lincoln MS-
1239 PM CDT MON JUL 24 2017

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 200 PM CDT FOR
NORTHERN LINCOLN COUNTY...

At 1237 PM CDT, trained weather spotters reported flooding of some 
streets in Brookhaven. Radar indicates up to 7 inches of rain have 
fallen over portions of eastern Lincoln County. Flash flooding is 
already occurring.

Some locations that will experience flooding include...
Brookhaven, Loyd Star, Caseyville and East Lincoln. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3167 9074 3170 9074 3170 9042 3169 9041
      3169 9038 3170 9038 3170 9028 3171 9025
      3144 9025

$$

DL
597 
WGUS74 KJAN 241900
FFSJAN

Flash Flood Statement
National Weather Service Jackson MS
200 PM CDT MON JUL 24 2017

MSC085-241909-
/O.EXP.KJAN.FF.W.0090.000000T0000Z-170724T1900Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Lincoln MS-
200 PM CDT MON JUL 24 2017

...THE FLASH FLOOD WARNING FOR NORTHERN LINCOLN COUNTY WILL EXPIRE AT
200 PM CDT...

The heavy rain has ended. Flooding is not expected to pose any 
additional threat. Please continue to heed any remaining road 
closures.

LAT...LON 3167 9074 3170 9074 3170 9042 3169 9041
      3169 9038 3170 9038 3170 9028 3171 9025
      3144 9025

$$

DL

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 24, 6:26 AM CDTSpecial Weather StatementJANLamar64 min
Jul 24, 7:14 AM CDTFlash Flood WarningJANForrest3 hr
Jul 24, 10:42 AM CDTSpecial Weather StatementJANCopiah, Jefferson Davis, Lawrence, Lincoln63 min
Jul 24, 10:57 AM CDTFlash Flood WarningJANForrest, Lamar3 hr
Jul 24, 11:22 AM CDTFlash Flood WatchJANCopiah, Covington, Forrest, Jefferson Davis, Jones, Lamar and 4 more8 hr
Jul 24, 12:20 PM CDTSpecial Weather StatementJANRankin55 min
Jul 24, 12:35 PM CDTSpecial Weather StatementJANJefferson Davis, Lawrence55 min
Jul 24, 12:52 PM CDTFlash Flood WarningJANRankin98 min
Jul 24, 1:35 PM CDTSpecial Weather StatementJANFranklin, Lincoln55 min
Jul 24, 1:40 PM CDTSpecial Weather StatementJANClaiborne50 min
Jul 24, 1:57 PM CDTFlash Flood WarningJANForrest, Lamar3 hr
Jul 24, 1:59 PM CDTAreal Flood WarningJANLincoln3 hr
Jul 24, 2:31 PM CDTSpecial Weather StatementJANMarion44 min
Jul 24, 2:37 PM CDTSpecial Weather StatementJANClaiborne38 min
Jul 24, 3:58 PM CDTSpecial Weather StatementJANYazoo32 min
Jul 24, 4:13 PM CDTSpecial Weather StatementJANHolmes32 min
Jul 24, 4:33 PM CDTSpecial Weather StatementJANAttala27 min
Jul 24, 4:37 PM CDTSpecial Weather StatementJANAttala23 min
Jul 24, 4:50 PM CDTSpecial Weather StatementJANSharkey25 min
Jul 24, 4:53 PM CDTSpecial Weather StatementJANHolmes37 min
Jul 24, 4:58 PM CDTSpecial Weather StatementJANSunflower32 min
Jul 24, 5:21 PM CDTFlash Flood WarningJANAttala, Holmes3 hr
Jul 24, 5:25 PM CDTSpecial Weather StatementJANSharkey35 min
Jul 24, 5:36 PM CDTSpecial Weather StatementJANLeflore24 min
Jul 24, 5:45 PM CDTSpecial Weather StatementJANNoxubee30 min
Jul 24, 5:58 PM CDTSpecial Weather StatementJANWebster32 min
Jul 24, 6:19 PM CDTSpecial Weather StatementJANOktibbeha26 min
Jul 24, 6:22 PM CDTSevere Thunderstorm WarningJANOktibbeha24 min
Jul 24, 6:30 PM CDTSpecial Weather StatementJANSharkey30 min

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.