Alert archive / Mississippi / Flash Flood Warnings in 2021

Flash Flood Warning 67, NWS Jackson, MS

July 19, 20214 counties in Mississippi

NWS Jackson, MS issued this flash flood warning at Jul 19, 2021, 5:07 AM CDT for 4 counties in Mississippi. It was in force for 3 hr. 5 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 19, 2021, 5:07 AM CDT (10:07 UTC)
Expired
Jul 19, 2021, 8:00 AM CDT
In force
3 hr
Issued by
NWS Jackson, MS
Area
Storm-based polygon
Flood severity
None

Counties Kemper County, MS, Lauderdale County, MS, Neshoba County, MS, Newton County, MS

The radar

The Jackson/Brandon,MS radar (KDGX), 102 km from the middle of the area, began a volume at 10:08 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 19, 6:00 AM CDTFLASH FLOOD1 Ssw Neshoba, MSPART OF CR 317 IMPASSIBLE.
Jul 19, 6:10 AM CDTFLASH FLOOD1 Wnw Russell, MSFLOODING REPORTED ON MARION RUSSELL RD.
Jul 19, 6:10 AM CDTFLASH FLOOD3 Nw Collinsville, MSFLOODING REPORTED ON HIGHWAY 19 IN THE NORTHERN PART OF THE COUNTY.
Jul 19, 7:00 AM CDTHEAVY RAIN 5.112 W Union, MS5.11 INCHES MEASURED AS OF 7AM. ALSO, SEVERAL FLOODED ROADS IN AND AROUND UNION.
Jul 19, 7:08 AM CDTFLASH FLOOD1 Nw Nellieburg, MSFLOODED ROADS AND YARDS IN TANGLEWOOD COMMUNITY.

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 00:00Z, 10.1 hours before the alert went out and 110 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 00:00Z on 2021-07-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 344 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 00:00Z on 2021-07-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 15 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
344 J/kg
Mixed-layer CIN
-113 J/kg
Mixed-layer LCL
1076 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
15 m²/s²
0-3 km storm-relative helicity
78 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

As transmitted.

442 
WGUS54 KJAN 191007
FFWJAN
MSC069-075-099-101-191300-
/O.NEW.KJAN.FF.W.0067.210719T1007Z-210719T1300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Jackson MS
507 AM CDT Mon Jul 19 2021

The National Weather Service in Jackson has issued a

* Flash Flood Warning for...
  Southern Kemper County in east central Mississippi...
  Northern Lauderdale County in east central Mississippi...
  Southern Neshoba County in east central Mississippi...
  Northern Newton County in east central Mississippi...

* Until 800 AM CDT.

* At 507 AM CDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 1.5 and 4 inches of 
  rain have fallen. Additional rainfall amounts of 1 to 3 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...
  Lauderdale, Meridian, Meridian Station, Prospect, Neshoba, 
  Decatur, Marion, Liberty, Martin, Duffee, Herbert Springs, 
  Suqualena, Damascus, Prismatic, House, Little Rock, Daleville, 
  Blackwater, Bethsaida and Stratton.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3241 8932 3274 8931 3267 8891 3265 8838
      3239 8841

FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL...1-2 INCHES IN 1 HOUR

$$

DL
2 follow-up statements
453 
WGUS74 KJAN 191109
FFSJAN

Flash Flood Statement
National Weather Service Jackson MS
609 AM CDT Mon Jul 19 2021

MSC069-075-099-101-191300-
/O.CON.KJAN.FF.W.0067.000000T0000Z-210719T1300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Kemper MS-Lauderdale MS-Neshoba MS-Newton MS-
609 AM CDT Mon Jul 19 2021

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 8 AM CDT THIS MORNING 
FOR SOUTHERN KEMPER, NORTHERN LAUDERDALE, SOUTHERN NESHOBA AND 
NORTHERN NEWTON COUNTIES...

At 609 AM CDT, Doppler radar indicated thunderstorms producing heavy 
rain across the warned area. Between 2 and 5 inches of rain have 
fallen. Additional rainfall amounts of 1 to 3 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...
  Lauderdale, Meridian, Meridian Station, Prospect, Neshoba, 
  Decatur, Marion, Liberty, Martin, Duffee, Herbert Springs, 
  Suqualena, Damascus, Prismatic, House, Little Rock, Daleville, 
  Blackwater, Bethsaida and Stratton.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3241 8932 3274 8931 3267 8891 3265 8838
      3239 8841

FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL...1-2 INCHES IN 1 HOUR

$$

DL
732 
WGUS74 KJAN 191120
FFSJAN

Flash Flood Statement
National Weather Service Jackson MS
620 AM CDT Mon Jul 19 2021

MSC069-075-099-101-191300-
/O.CON.KJAN.FF.W.0067.000000T0000Z-210719T1300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Kemper MS-Lauderdale MS-Neshoba MS-Newton MS-
620 AM CDT Mon Jul 19 2021

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 8 AM CDT THIS MORNING 
FOR SOUTHERN KEMPER, NORTHERN LAUDERDALE, SOUTHERN NESHOBA AND 
NORTHERN NEWTON COUNTIES...

At 620 AM CDT, local law enforcement reported thunderstorms 
producing heavy rain across the warned area. Between 2 and 5 inches 
of rain have fallen, and an additional rainfall amounts of 1 to 3 
inches are possible in the warned area. Flash flooding is already 
occurring.

HAZARD...Flash flooding caused by thunderstorms.

SOURCE...Law enforcement reported. Flooding was reported on
         Highway 19 and Marion Russell Rd in Lauderdale County.

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...
  Lauderdale, Meridian, Meridian Station, Prospect, Neshoba, 
  Decatur, Marion, Liberty, Martin, Duffee, Herbert Springs, 
  Suqualena, Damascus, Prismatic, House, Little Rock, Daleville, 
  Blackwater, Bethsaida and Stratton.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3241 8932 3274 8931 3267 8891 3265 8838
      3239 8841

FLASH FLOOD...OBSERVED
EXPECTED RAINFALL...1-2 INCHES IN 1 HOUR

$$

DL

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 18, 7:56 PM CDTSpecial Weather StatementJANSimpson49 min
Jul 19, 3:18 AM CDTSpecial Weather StatementJANSharkey57 min
Jul 19, 4:01 AM CDTSpecial Weather StatementJANYazoo59 min
Jul 19, 4:15 AM CDTFlash Flood WarningJANWashington3 hr
Jul 19, 4:44 AM CDTSpecial Weather StatementJANLauderdale61 min
Jul 19, 7:15 AM CDTSpecial Weather StatementJANLauderdale45 min
Jul 19, 9:00 AM CDTFlash Flood WarningJANScott2 hr
Jul 19, 9:30 AM CDTRiver Flood WarningJANLeake4 days
Jul 19, 9:53 AM CDTRiver Flood WarningJANClarke4 days
Jul 19, 2:49 PM CDTSpecial Weather StatementJANLincoln26 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.