Alert archive / Mississippi / Flash Flood Warnings in 2021

Flash Flood Warning 62, NWS Jackson, MS

July 7, 20216 counties in Mississippi

NWS Jackson, MS issued this flash flood warning at Jul 7, 2021, 3:10 PM CDT for 6 counties in Mississippi. It was in force for 2 hr. 1 report 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 7, 2021, 3:10 PM CDT (20:10 UTC)
Expired
Jul 7, 2021, 5:15 PM CDT
In force
2 hr
Issued by
NWS Jackson, MS
Area
Storm-based polygon
Flood severity
None

Counties Attala County, MS, Holmes County, MS, Leake County, MS, Madison County, MS, Neshoba County, MS, Yazoo County, MS

The radar

The Jackson/Brandon,MS radar (KDGX), 78 km from the middle of the area, began a volume at 20:10 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 7, 3:40 PM CDTFLASH FLOODPickens, MSMULTIPLE STREETS FLOODED IN THE TOWN OF PICKENS.

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, 8.2 hours before the alert went out and 79 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 2021-07-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1127 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 2021-07-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -28 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
1127 J/kg
Mixed-layer CIN
-1 J/kg
Mixed-layer LCL
517 m above ground
0-6 km bulk shear
0 kt
0-1 km storm-relative helicity
-28 m²/s²
0-3 km storm-relative helicity
-8 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

717 
WGUS54 KJAN 072010
FFWJAN
MSC007-051-079-089-099-163-072215-
/O.NEW.KJAN.FF.W.0062.210707T2010Z-210707T2215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Jackson MS
310 PM CDT Wed Jul 7 2021

The National Weather Service in Jackson has issued a

* Flash Flood Warning for...
  Southern Attala County in central Mississippi...
  Southeastern Holmes County in central Mississippi...
  Northern Leake County in central Mississippi...
  Northeastern Madison County in central Mississippi...
  Northeastern Yazoo County in central Mississippi...
  Central Neshoba County in east central Mississippi...

* Until 515 PM CDT.

* At 310 PM CDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 2 and 4 inches of rain 
  have fallen. Additional rainfall amounts of 1 to 2 inches are 
  possible in the warned area. Flash flooding is ongoing or expected 
  to begin shortly.

  HAZARD...Flash flooding caused by thunderstorms.

  SOURCE...Radar.

  IMPACT...Flash flooding of small creeks and streams, urban
           areas, highways, streets and underpasses as well as
           other poor drainage and low-lying areas.

* Some locations that will experience flash flooding include...
  Philadelphia, Edinburg, Pearl River, Goodman, Pickens, Singleton, 
  Renfroe, Smyrna, Thomastown, Newport, Cameron, Burnside, Vaughan, 
  Forestdale and Tucker.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3299 8989 3301 8952 3290 8921 3285 8892
      3266 8891 3276 8932 3285 8958 3277 9007
      3293 9015

FLASH FLOOD...RADAR INDICATED

$$

DL
3 follow-up statements
086 
WGUS74 KJAN 072115
FFSJAN

Flash Flood Statement
National Weather Service Jackson MS
415 PM CDT Wed Jul 7 2021

MSC007-051-079-089-099-163-072215-
/O.CON.KJAN.FF.W.0062.000000T0000Z-210707T2215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Attala MS-Holmes MS-Leake MS-Madison MS-Neshoba MS-Yazoo MS-
415 PM CDT Wed Jul 7 2021

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 515 PM CDT THIS 
AFTERNOON FOR SOUTHWESTERN ATTALA, SOUTH CENTRAL HOLMES, NORTHERN 
LEAKE, NORTHEASTERN MADISON, NORTHEASTERN YAZOO AND NORTHWESTERN 
NESHOBA COUNTIES...

At 415 PM CDT, Doppler radar indicated thunderstorms producing heavy 
rain across the warned area. Between 3 and 5 inches of rain have 
fallen. Flash flooding is ongoing or expected to begin shortly.

HAZARD...Flash flooding caused by thunderstorms.

SOURCE...Radar.

IMPACT...Flash flooding of small creeks and streams, urban areas,
         highways, streets and underpasses as well as other poor
         drainage and low-lying areas.

Some locations that will experience flash flooding include...
  Philadelphia, Pickens, Thomastown, Singleton, Cameron, Renfroe and 
  Vaughan.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3294 9013 3297 8999 3293 8973 3293 8971
      3292 8932 3286 8911 3276 8914 3286 8948
      3285 8958 3283 8973 3277 9007 3293 9015

FLASH FLOOD...RADAR INDICATED

$$

DL
361 
WGUS74 KJAN 072156
FFSJAN

Flash Flood Statement
National Weather Service Jackson MS
456 PM CDT Wed Jul 7 2021

MSC079-099-072206-
/O.CAN.KJAN.FF.W.0062.000000T0000Z-210707T2215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Leake MS-Neshoba MS-
456 PM CDT Wed Jul 7 2021

...FLASH FLOOD WARNING IS CANCELLED FOR NORTHERN LEAKE AND 
NORTHWESTERN NESHOBA COUNTIES...

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

LAT...LON 3294 9013 3296 9000 3294 8981 3288 8980
      3285 8980 3283 8984 3281 9005 3293 9015

$$

MSC007-051-089-163-072215-
/O.CON.KJAN.FF.W.0062.000000T0000Z-210707T2215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Attala MS-Holmes MS-Madison MS-Yazoo MS-
456 PM CDT Wed Jul 7 2021

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 515 PM CDT THIS 
AFTERNOON FOR SOUTHWESTERN ATTALA, SOUTH CENTRAL HOLMES, NORTH 
CENTRAL MADISON AND NORTHEASTERN YAZOO COUNTIES...

At 456 PM CDT, law enforcement reported flooded streets in the town 
of Pickens. Between 3 and 5 inches of rain have fallen. Flash 
flooding is ongoing.

HAZARD...Flash flooding caused by heavy rain.

SOURCE...Law enforcement reported.

IMPACT...Flash flooding of small creeks and streams, urban areas,
         highways, streets and underpasses as well as other poor
         drainage and low-lying areas.

Some locations that will experience flash flooding include...
  Pickens and Cameron.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3294 9013 3296 9000 3294 8981 3288 8980
      3285 8980 3283 8984 3281 9005 3293 9015

FLASH FLOOD...OBSERVED

$$

DL
461 
WGUS74 KJAN 072214 RRA
FFSJAN

Flash Flood Statement
National Weather Service Jackson MS
514 PM CDT Wed Jul 7 2021

MSC007-051-089-163-072224-
/O.EXP.KJAN.FF.W.0062.000000T0000Z-210707T2215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Attala MS-Holmes MS-Madison MS-Yazoo MS-
514 PM CDT Wed Jul 7 2021

...FLASH FLOOD WARNING WILL EXPIRE AT 515 PM CDT THIS AFTERNOON FOR 
SOUTHWESTERN ATTALA, SOUTH CENTRAL HOLMES, NORTH CENTRAL MADISON AND 
NORTHEASTERN YAZOO COUNTIES...

The heavy rain has ended. Flooding is no longer expected to pose a 
threat. Please continue to heed remaining road closures.

LAT...LON 3294 9013 3296 9000 3294 8981 3288 8980
      3285 8980 3283 8984 3281 9005 3293 9015

$$

DL

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 7, 1:11 PM CDTSpecial Weather StatementJANHinds34 min
Jul 7, 1:13 PM CDTSpecial Weather StatementJANSimpson32 min
Jul 7, 2:16 PM CDTFlash Flood WarningJANHinds, Rankin3 hr
Jul 7, 2:46 PM CDTSpecial Weather StatementJANLeake59 min
Jul 7, 3:18 PM CDTSpecial Weather StatementJANAdams57 min
Jul 7, 3:24 PM CDTSpecial Weather StatementJANForrest51 min
Jul 7, 3:57 PM CDTSpecial Weather StatementJANLeake63 min
Jul 7, 4:42 PM CDTSpecial Weather StatementJANLincoln63 min
Jul 7, 5:14 PM CDTAreal Flood WarningJANHinds, Rankin61 min

Nearby

Flash Flood Warnings in Mississippi, 2021Every flash flood warning in 2021

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.