Alert archive / Mississippi / Flash Flood Warnings in 2021

Flash Flood Warning 8, NWS Jackson, MS

March 25, 20216 counties in Mississippi

NWS Jackson, MS issued this flash flood warning at Mar 25, 2021, 1:24 PM CDT for 6 counties in Mississippi. It was in force for 94 min. 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: Mar 25, 2021, 1:24 PM CDT (18:24 UTC)
Expired: Mar 25, 2021, 2:58 PM CDT
In force: 94 min
Issued by: NWS Jackson, MS
Area: Storm-based polygon
Flood severity: None

Counties Covington County, MS, Jefferson Davis County, MS, Lawrence County, MS, Scott County, MS, Simpson County, MS, Smith County, MS

The radar

The Jackson/Brandon,MS radar (KDGX), 55 km from the middle of the area, began a volume at 18:28 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

Time	Report	Where	Remark
Mar 25, 1:45 PM CDT	FLASH FLOOD	3 Wnw Clem, MS	FLASH FLOODING WASHED OUT A CULVERT ALONG WILLIAMSON MILL RD.
Mar 25, 2:00 PM CDT	FLASH FLOOD	Saratoga, MS	RODNEY SULLIVAN RD FLOODED.
Mar 25, 2:30 PM CDT	FLASH FLOOD	Taylorsville, MS

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, 6.4 hours before the alert went out and 63 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1775 J/kg
Mixed-layer CIN: -31 J/kg
Mixed-layer LCL: 506 m above ground
0-6 km bulk shear: 51 kt
0-1 km storm-relative helicity: 352 m²/s²
0-3 km storm-relative helicity: 473 m²/s²
Significant tornado parameter: 4.6
Supercell composite: 21.9

Open this sounding in Storm Lab

The text

As transmitted.

283 
WGUS54 KJAN 251824
FFWJAN
MSC031-065-077-123-127-129-252030-
/O.NEW.KJAN.FF.W.0008.210325T1824Z-210325T2030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Jackson MS
124 PM CDT Thu Mar 25 2021

The National Weather Service in Jackson has issued a

* Flash Flood Warning for...
  Southeastern Scott County in central Mississippi...
  Eastern Simpson County in central Mississippi...
  Smith County in central Mississippi...
  Northwestern Jefferson Davis County in south central Mississippi...
  Southeastern Lawrence County in south central Mississippi...
  Northwestern Covington County in southeastern Mississippi...

* Until 330 PM CDT.

* At 123 PM CDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 1 and 3 inches of rain 
  have fallen. Flash flooding is ongoing or expected to begin 
  shortly.

  HAZARD...Flash flooding caused by thunderstorms.

  SOURCE...Doppler radar.

  IMPACT...Flooding of small creeks and streams, urban areas,
           highways, streets and underpasses as well as other
           drainage and low lying areas.

* Some locations that will experience flash flooding include...
  Forest, Magee, Raleigh, Taylorsville, Prentiss, Mount Olive, 
  Center Ridge, Martinville, White Oak, Sanatorium, Burns, Clem, 
  Pineville, Homewood, Lone Star, Pulaski, Progress, Arm, Tilton and 
  Mize.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3137 9007 3159 9003 3182 8983 3222 8966
      3250 8933 3190 8932

FLASH FLOOD...RADAR INDICATED

$$

DL

1 follow-up statement

869 
WGUS74 KJAN 251958
FFSJAN

Flash Flood Statement
National Weather Service Jackson MS
258 PM CDT Thu Mar 25 2021

MSC031-065-077-123-127-129-252008-
/O.CAN.KJAN.FF.W.0008.000000T0000Z-210325T2030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Covington MS-Jefferson Davis MS-Lawrence MS-Scott MS-Simpson MS-
Smith MS-
258 PM CDT Thu Mar 25 2021

...FLASH FLOOD WARNING IS CANCELLED FOR SOUTHEASTERN SCOTT, EASTERN 
SIMPSON, SMITH, NORTHWESTERN JEFFERSON DAVIS, SOUTHEASTERN LAWRENCE 
AND NORTHWESTERN COVINGTON COUNTIES...

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

LAT...LON 3137 9007 3159 9003 3182 8983 3222 8966
      3250 8933 3190 8932

$$

DL

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 25, 12:47 AM CDT	Special Weather Statement	JAN	Smith	43 min
Mar 25, 1:02 AM CDT	Severe Thunderstorm Warning	JAN	Jasper, Smith	39 min
Mar 25, 1:43 AM CDT	Special Weather Statement	JAN	Clarke	32 min
Mar 25, 2:06 AM CDT	Special Weather Statement	JAN	Lauderdale	24 min
Mar 25, 2:39 AM CDT	Special Weather Statement	JAN	Choctaw	36 min
Mar 25, 3:02 AM CDT	Special Weather Statement	JAN	Clay	43 min
Mar 25, 3:07 AM CDT	Special Weather Statement	JAN	Simpson, Smith	38 min
Mar 25, 3:43 AM CDT	Special Weather Statement	JAN	Scott	32 min
Mar 25, 3:48 AM CDT	Severe Thunderstorm Warning	JAN	Newton, Scott	27 min
Mar 25, 4:14 AM CDT	Special Weather Statement	JAN	Choctaw	31 min
Mar 25, 4:24 AM CDT	Severe Thunderstorm Warning	JAN	Choctaw, Oktibbeha, Webster	36 min
Mar 25, 4:37 AM CDT	Severe Thunderstorm Warning	JAN	Neshoba, Winston	38 min
Mar 25, 4:41 AM CDT	Severe Thunderstorm Warning	JAN	Clay	34 min
Mar 25, 5:15 AM CDT	Severe Thunderstorm Warning	JAN	Noxubee, Winston	30 min
Mar 25, 5:28 AM CDT	Special Weather Statement	JAN	Neshoba	47 min
Mar 25, 6:35 AM CDT	Special Weather Statement	JAN	Noxubee	25 min
Mar 25, 7:04 AM CDT	River Flood Warning	JAN	Lawrence	63 hr
Mar 25, 8:54 AM CDT	Special Weather Statement	JAN	Attala	36 min
Mar 25, 9:01 AM CDT	River Flood Warning	JAN	Neshoba	7 days
Mar 25, 9:03 AM CDT	River Flood Warning	JAN	Madison, Yazoo	13 days
Mar 25, 9:04 AM CDT	River Flood Warning	JAN	Clarke	4 days
Mar 25, 9:04 AM CDT	Special Weather Statement	JAN	Lowndes	26 min
Mar 25, 9:11 AM CDT	Special Weather Statement	JAN	Winston	49 min
Mar 25, 9:18 AM CDT	Special Weather Statement	JAN	Noxubee	42 min
Mar 25, 9:32 AM CDT	Tornado Warning	JAN	Noxubee	28 min
Mar 25, 11:46 AM CDT	River Flood Warning	JAN	Bolivar, Washington	12 days
Mar 25, 11:48 AM CDT	River Flood Warning	JAN	Issaquena, Washington	13 days
Mar 25, 12:38 PM CDT	Severe Thunderstorm Warning	JAN	Leake, Neshoba, Scott	52 min
Mar 25, 1:02 PM CDT	Special Weather Statement	JAN	Winston	28 min
Mar 25, 1:03 PM CDT	Tornado Warning	JAN	Covington, Jefferson Davis, Simpson, Smith	57 min
Mar 25, 1:17 PM CDT	Severe Thunderstorm Warning	JAN	Noxubee, Winston	30 min
Mar 25, 1:21 PM CDT	Severe Thunderstorm Warning	JAN	Choctaw, Winston	24 min
Mar 25, 1:28 PM CDT	Tornado Warning	JAN	Noxubee	17 min
Mar 25, 1:46 PM CDT	Severe Thunderstorm Warning	JAN	Lowndes	27 min
Mar 25, 1:54 PM CDT	Severe Thunderstorm Warning	JAN	Clarke, Jasper, Lauderdale, Newton	81 min
Mar 25, 2:05 PM CDT	Special Weather Statement	JAN	Smith	25 min
Mar 25, 2:29 PM CDT	Tornado Warning	JAN	Kemper, Lauderdale, Newton	61 min
Mar 25, 2:31 PM CDT	Special Weather Statement	JAN	Kemper	29 min
Mar 25, 3:06 PM CDT	Tornado Warning	JAN	Kemper	24 min
Mar 25, 3:09 PM CDT	Severe Thunderstorm Warning	JAN	Clarke, Lauderdale	36 min
Mar 25, 3:16 PM CDT	Severe Thunderstorm Warning	JAN	Jefferson Davis, Lawrence, Marion	44 min
Mar 25, 3:18 PM CDT	Tornado Warning	JAN	Lauderdale	27 min
Mar 25, 3:40 PM CDT	Severe Thunderstorm Warning	JAN	Jefferson Davis, Lawrence, Rankin, Simpson, Smith	65 min
Mar 25, 3:47 PM CDT	Severe Thunderstorm Warning	JAN	Covington, Smith	15 min
Mar 25, 4:23 PM CDT	Special Weather Statement	JAN	Newton	37 min
Mar 25, 4:32 PM CDT	Special Weather Statement	JAN	Marion	28 min
Mar 25, 5:03 PM CDT	River Flood Warning	JAN	Leake	3 days
Mar 25, 5:03 PM CDT	Special Weather Statement	JAN	Jones	57 min
Mar 25, 5:15 PM CDT	Severe Thunderstorm Warning	JAN	Covington, Jones	45 min
Mar 25, 5:57 PM CDT	Special Weather Statement	JAN	Clarke	63 min
Mar 25, 6:38 PM CDT	Severe Thunderstorm Warning	JAN	Clarke	13 min

Nearby

Flash Flood Warnings in Mississippi, 2021 Every 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.