Alert archive / Mississippi / Flash Flood Warnings in 2021

Flash Flood Warning 29, NWS Memphis, TN

March 27, 2021Phillips County, Arkansas; 5 counties in Mississippi

NWS Memphis, TN issued this flash flood warning at Mar 27, 2021, 11:23 PM CDT for Phillips County, Arkansas; 5 counties in Mississippi. It was in force for 4 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Mar 27, 2021, 11:23 PM CDT (04:23 UTC)
Expired
Mar 28, 2021, 3:17 AM CDT
In force
4 hr
Issued by
NWS Memphis, TN
Area
Storm-based polygon
Flood severity
None

Counties Phillips County, AR, Coahoma County, MS, Panola County, MS, Quitman County, MS, Tate County, MS, Tunica County, MS

The radar

The Memphis radar (KNQA), 146 km from the middle of the area, began a volume at 04:22 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.

The nearest sounding before it

Little Rock, AR (KLZK), launched 00:00Z, 4.4 hours before the alert went out and 98 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, Little Rock, AR at 00:00Z on 2021-03-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 894 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, Little Rock, AR at 00:00Z on 2021-03-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 64 square meters per square second.1939587897117Sfc1 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
894 J/kg
Mixed-layer CIN
-17 J/kg
Mixed-layer LCL
1261 m above ground
0-6 km bulk shear
79 kt
0-1 km storm-relative helicity
64 m²/s²
0-3 km storm-relative helicity
209 m²/s²
Significant tornado parameter
0.7
Supercell composite
8.7

Open this sounding in Storm Lab

The text

As transmitted.

952 
WGUS54 KMEG 280423
FFWMEG
ARC107-MSC027-107-119-137-143-280730-
/O.NEW.KMEG.FF.W.0029.210328T0423Z-210328T0730Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Memphis TN
1123 PM CDT Sat Mar 27 2021

The National Weather Service in Memphis has issued a

* Flash Flood Warning for...
  Southern Phillips County in eastern Arkansas...
  Coahoma County in northwestern Mississippi...
  Northwestern Panola County in northwestern Mississippi...
  Northern Quitman County in northwestern Mississippi...
  Southern Tate County in northwestern Mississippi...
  Southeastern Tunica County in northwestern Mississippi...

* Until 230 AM CDT.

* At 1123 PM CDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 1 and 2 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...
  Clarksdale, Senatobia, Elaine, White River National Wildlife 
  Refuge, Jonestown, Como, Friars Point, Crenshaw, Sledge, Belen, 
  Dundee, Darling, Dubbs, Kings, Pleasant Grove, Sherard, Strayhorn, 
  Crumrod, Barr and Coahoma.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Be especially cautious at night when it is harder to recognize the 
dangers of flooding.

A Flash Flood Warning means that flooding is imminent or occurring. 
If you are in the warned area move to higher ground immediately. 
Residents living along streams and creeks should take immediate 
precautions to protect life and property.

&&

LAT...LON 3419 9109 3464 9023 3465 8967 3464 8967
      3411 9059 3411 9112 3413 9111 3413 9110
      3414 9110 3414 9108 3415 9109 3415 9108

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

$$
2 follow-up statements
973 
WGUS54 KMEG 280717
FFWMEG
ARC107-MSC027-107-119-137-143-280830-
/O.EXT.KMEG.FF.W.0029.000000T0000Z-210328T0830Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Memphis TN
217 AM CDT Sun Mar 28 2021

The National Weather Service in Memphis has extended the

* Flash Flood Warning for...
  Southern Phillips County in eastern Arkansas...
  Coahoma County in northwestern Mississippi...
  Northwestern Panola County in northwestern Mississippi...
  Northern Quitman County in northwestern Mississippi...
  Southern Tate County in northwestern Mississippi...
  Southeastern Tunica County in northwestern Mississippi...

* Until 330 AM CDT.

* At 217 AM CDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area.

  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...
  Clarksdale, Senatobia, Elaine, White River National Wildlife 
  Refuge, Jonestown, Como, Friars Point, Crenshaw, Sledge, Belen, 
  Dundee, Darling, Dubbs, Kings, Pleasant Grove, Sherard, Strayhorn, 
  Crumrod, Barr and Coahoma.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Be especially cautious at night when it is harder to recognize the 
dangers of flooding.

Please report flooding to your local law enforcement agency when you 
can do so safely.

A Flash Flood Warning means that flooding is imminent or occurring. 
If you are in the warned area move to higher ground immediately. 
Residents living along streams and creeks should take immediate 
precautions to protect life and property.

&&

LAT...LON 3419 9109 3464 9023 3465 8967 3464 8967
      3411 9059 3411 9112 3413 9111 3413 9110
      3414 9110 3414 9108 3415 9109 3415 9108

FLASH FLOOD...RADAR INDICATED

$$
051 
WGUS74 KMEG 280817
FFSMEG

Flash Flood Statement
National Weather Service Memphis TN
317 AM CDT Sun Mar 28 2021

ARC107-MSC027-107-119-137-143-280827-
/O.CAN.KMEG.FF.W.0029.000000T0000Z-210328T0830Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Phillips AR-Coahoma MS-Panola MS-Quitman MS-Tate MS-Tunica MS-
317 AM CDT Sun Mar 28 2021

...FLASH FLOOD WARNING IS CANCELLED FOR SOUTHERN PHILLIPS, COAHOMA, 
NORTHWESTERN PANOLA, NORTHERN QUITMAN, SOUTHERN TATE AND 
SOUTHEASTERN TUNICA COUNTIES...

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

LAT...LON 3419 9109 3464 9023 3465 8967 3464 8967
      3411 9059 3411 9112 3413 9111 3413 9110
      3414 9110 3414 9108 3415 9109 3415 9108

$$

The office that day

Everything else NWS Memphis, TN issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 27, 7:03 PM CDTTornado WarningMEGCrittenden, Mississippi, Poinsett42 min
Mar 27, 7:08 PM CDTTornado WarningMEGCross, St. Francis52 min
Mar 27, 7:10 PM CDTFlash Flood WarningMEGCrittenden, Cross, Mississippi, Poinsett, St. Francis3 hr
Mar 27, 7:17 PM CDTTornado WarningMEGLee, Phillips43 min
Mar 27, 7:39 PM CDTTornado WarningMEGCrittenden, Cross, Poinsett51 min
Mar 27, 7:50 PM CDTTornado WarningMEGCrittenden, Lee, St. Francis40 min
Mar 27, 8:07 PM CDTTornado WarningMEGCrittenden, Mississippi, Poinsett38 min
Mar 27, 8:26 PM CDTSevere Thunderstorm WarningMEGCrittenden, St. Francis11 min
Mar 27, 8:39 PM CDTSevere Thunderstorm WarningMEGMississippi34 min
Mar 27, 8:50 PM CDTSpecial Weather StatementMEGPhillips25 min
Mar 27, 9:09 PM CDTAreal Flood AdvisoryMEGCrittenden3 hr
Mar 27, 9:12 PM CDTSevere Thunderstorm WarningMEGPhillips48 min
Mar 27, 9:35 PM CDTTornado WarningMEGPhillips40 min
Mar 27, 9:37 PM CDTTornado WarningMEGPhillips53 min
Mar 27, 9:49 PM CDTTornado WarningMEGPhillips31 min
Mar 27, 9:53 PM CDTSevere Thunderstorm WarningMEGCrittenden52 min
Mar 28, 11:45 AM CDTRiver Flood AdvisoryMEGLee, Phillips24 hr
Mar 27, 7:54 PM CDTSpecial Weather StatementMEGDeSoto21 min
Mar 27, 10:05 PM CDTTornado WarningMEGCoahoma, Panola, Quitman, Tate, Tunica40 min
Mar 27, 10:08 PM CDTSevere Thunderstorm WarningMEGCoahoma, Panola, Quitman52 min
Mar 27, 10:31 PM CDTTornado WarningMEGDeSoto, Lafayette, Marshall, Panola, Tate44 min
Mar 27, 10:39 PM CDTSevere Thunderstorm WarningMEGBenton, DeSoto, Marshall36 min
Mar 27, 10:49 PM CDTFlash Flood WarningMEGDeSoto, Tate, Tunica3 hr
Mar 27, 10:56 PM CDTTornado WarningMEGBenton, Lafayette, Marshall, Tate, Tippah49 min
Mar 27, 11:09 PM CDTSevere Thunderstorm WarningMEGAlcorn, Benton, Marshall, Tippah51 min
Mar 27, 11:33 PM CDTSevere Thunderstorm WarningMEGAlcorn, Benton, Lafayette, Lee, Prentiss, Tippah and 2 more42 min
Mar 27, 11:41 PM CDTSevere Thunderstorm WarningMEGCoahoma, Tallahatchie49 min
Mar 27, 11:54 PM CDTSevere Thunderstorm WarningMEGAlcorn51 min
Mar 27, 11:58 PM CDTTornado WarningMEGAlcorn, Tippah17 min
Mar 28, 12:12 AM CDTTornado WarningMEGAlcorn, Tishomingo33 min
Mar 28, 12:17 AM CDTSevere Thunderstorm WarningMEGAlcorn, Benton, Itawamba, Lafayette, Lee, Marshall and 4 more43 min
Mar 28, 12:27 AM CDTSevere Thunderstorm WarningMEGCalhoun, Lafayette, Panola, Quitman, Tallahatchie, Yalobusha48 min
Mar 28, 12:48 AM CDTFlash Flood WarningMEGBenton, Lafayette, Marshall, Panola, Tate, Tippah and 1 more3 hr
Mar 28, 12:56 AM CDTSevere Thunderstorm WarningMEGAlcorn, Benton, Itawamba, Lee, Prentiss, Tippah and 2 more49 min
Mar 28, 12:59 AM CDTSevere Thunderstorm WarningMEGCalhoun, Chickasaw, Lafayette, Panola, Pontotoc, Tallahatchie and 1 more46 min
Mar 28, 1:03 AM CDTTornado WarningMEGAlcorn, Prentiss, Tippah, Tishomingo, Union27 min
Mar 28, 1:10 AM CDTTornado WarningMEGCalhoun, Lafayette, Pontotoc, Union, Yalobusha28 min
Mar 28, 1:36 AM CDTSevere Thunderstorm WarningMEGItawamba, Lafayette, Lee, Pontotoc, Prentiss, Tishomingo and 1 more39 min
Mar 28, 1:47 AM CDTSevere Thunderstorm WarningMEGChickasaw, Itawamba, Lee, Monroe, Pontotoc43 min
Mar 28, 2:14 AM CDTSevere Thunderstorm WarningMEGItawamba, Lee, Prentiss, Tishomingo46 min
Mar 28, 2:30 AM CDTSevere Thunderstorm WarningMEGItawamba, Lee, Monroe25 min
Mar 28, 3:22 AM CDTSpecial Weather StatementMEGMonroe23 min
Mar 28, 3:33 AM CDTSevere Thunderstorm WarningMEGMonroe42 min
Mar 28, 7:49 AM CDTRiver Flood WarningMEGLafayette, Marshall, Union26 hr

Nearby

Flash Flood Warnings in Mississippi, 2021Flash Flood Warnings in Arkansas, 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.