Alert archive / Mississippi / Flash Flood Warnings in 2021

Flash Flood Warning 93, NWS Jackson, MS

August 30, 2021Clarke County, Lauderdale County, Mississippi

NWS Jackson, MS issued this flash flood warning at Aug 30, 2021, 5:01 PM CDT for Clarke County, Lauderdale County, Mississippi. It was in force for 3 hr. 2 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
Aug 30, 2021, 5:01 PM CDT (22:01 UTC)
Expired
Aug 30, 2021, 8:00 PM CDT
In force
3 hr
Issued by
NWS Jackson, MS
Area
Storm-based polygon
Flood severity
None

Counties Clarke County, MS, Lauderdale County, MS

The radar

The Jackson/Brandon,MS radar (KDGX), 119 km from the middle of the area, began a volume at 22:04 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
Aug 30, 5:25 PM CDTFLASH FLOOD1 Sw Quitman, MSBROAD AREA FLOODING ALONG HIGHWAY 145/ARCHUSA DRIVE.
Aug 30, 6:30 PM CDTFLASH FLOOD2 N Marion, MSNUMEROUS HOMES FLOODED IN VAN ZYVERDEN 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 12:00Z, 10.0 hours before the alert went out and 128 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 2021-08-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 49 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 2021-08-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 387 square meters per square second.19395878Sfc1 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
49 J/kg
Mixed-layer CIN
-7 J/kg
Mixed-layer LCL
463 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
387 m²/s²
0-3 km storm-relative helicity
547 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

As transmitted.

474 
WGUS54 KJAN 302201
FFWJAN
MSC023-075-310100-
/O.NEW.KJAN.FF.W.0093.210830T2201Z-210831T0100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Jackson MS
501 PM CDT Mon Aug 30 2021

The National Weather Service in Jackson has issued a

* Flash Flood Warning for...
  Clarke County in east central Mississippi...
  Lauderdale County in east central Mississippi...

* Until 800 PM CDT.

* At 501 PM CDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 2 and 3 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 training rain bands from
           Tropical Depression Ida.

  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, Quitman, Meridian Station, Marion, 
  Stonewall, Sable, Zero, Middleton, Savoy, Increase, Sykes, Snell, 
  Nellieburg, Meehan, Alamucha, Toomsuba, De Soto, Suqualena and 
  Crandall.

This includes the following streams and drainages...
  Hurricane Creek, Little Double Creek, Fivemile Creek, Alamuchee 
  Creek, Gays Branch, Chinquapin Creek, Rocky Creek, Little Bogue 
  Homo, Toomsuba Creek, Chickasawhay River, Goodwater Creek, 
  Tallahatta Creek, Possum Creek, Bean Creek, Twistwood Creek, 
  Fallen Creek, Brush Creek, Algood Creek, Lost Horse Creek, Tedder 
  Branch, Cane Creek, Cedar Creek, Brandon Branch, Mingo Creek, 
  Baker Creek, Bostic Branch, Riley Mill Creek, Motts Creek, Tompeat 
  Creek, Double Creek, Big Reed Creek, Brothers Branch, Little 
  Alamuchee Creek, Garland Creek, Peach Tree Creek, Wright Creek, 
  Flower, Bogue, Twitley Branch, Prairie Branch, Gordon Creek, 
  Hanging Moss Creek, Long Branch, Homo, Bogue, Graham Mill Creek, 
  Luke Fluffer Creek, Archusa Creek, Chunky River, Chicwillasaw 
  Creek, Johnnie Branch, Buckatunna Creek, Dry Creek, Shots Creek, 
  Mayatte Creek, Salem Creek, Loper Creek, Shubuta Creek, Irby Mill 
  Creek, Bolingchessa Creek, Bailey Branch, Ponta Creek, Bales 
  Creek, Long Creek, Sowashee Creek, Curtis Branch, Hollicar Creek, 
  Castaffa Creek, Cokers Branch, Moore Mill Creek, Okatibbee Creek, 
  Rolling Creek and Souenlovie Creek.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3257 8891 3258 8839 3189 8847 3183 8891

FLASH FLOOD...RADAR INDICATED

$$

JNE
1 follow-up statement
174 
WGUS74 KJAN 302354
FFSJAN

Flash Flood Statement
National Weather Service Jackson MS
654 PM CDT Mon Aug 30 2021

MSC023-075-310100-
/O.CON.KJAN.FF.W.0093.000000T0000Z-210831T0100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Clarke MS-Lauderdale MS-
654 PM CDT Mon Aug 30 2021

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 8 PM CDT THIS EVENING 
FOR CLARKE AND LAUDERDALE COUNTIES...

At 654 PM CDT, Heavy rain bands have begun to move out of the warned 
area. Water in a few homes were reported in Meridian due to the 
heavier rain. Another inch of rain could be possible mainly over the 
next hour.

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, Quitman, Meridian Station, Marion, 
  Stonewall, Sable, Zero, Middleton, Savoy, Increase, Sykes, Snell, 
  Nellieburg, Meehan, Alamucha, Toomsuba, De Soto, Suqualena and 
  Crandall.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3257 8891 3258 8839 3189 8847 3183 8891

FLASH FLOOD...RADAR INDICATED

$$

JNE

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 30, 3:32 AM CDTFlash Flood WarningJANForrest, Lamar, Marion6 hr
Aug 30, 5:35 AM CDTFlash Flood WarningJANLawrence, Lincoln3 hr
Aug 30, 6:00 AM CDTFlash Flood WarningJANCovington, Jefferson Davis4 hr
Aug 30, 6:41 AM CDTFlash Flood WarningJANCopiah, Simpson4 hr
Aug 30, 7:08 AM CDTFlash Flood WarningJANJones4 hr
Aug 30, 8:14 AM CDTFlash Flood WarningJANRankin, Smith4 hr
Aug 30, 8:21 AM CDTFlash Flood WarningJANRankin, Smith4 hr
Aug 30, 8:33 AM CDTFlash Flood WarningJANCovington, Hinds, Jasper, Jones, Rankin, Scott and 2 more4 hr
Aug 30, 12:38 PM CDTSpecial Weather StatementJANMadison22 min
Aug 30, 3:17 PM CDTFlash Flood WarningJANLauderdale118 min
Aug 30, 4:33 PM CDTFlash Flood WarningJANKemper, Noxubee2 hr

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.