Alert archive / Mississippi / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 39, NWS Memphis, TN

March 27, 2021Shelby County, Tennessee; DeSoto County, Tunica County, Mississippi; Crittenden County, St. Francis County, Arkansas

NWS Memphis, TN issued this severe thunderstorm warning at Mar 27, 2021, 8:26 PM CDT for Shelby County, Tennessee; DeSoto County, Tunica County, Mississippi; Crittenden County, St. Francis County, Arkansas. It was in force for 11 min. 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, 8:26 PM CDT (01:26 UTC)
Expired
Mar 27, 2021, 8:37 PM CDT
In force
11 min
Issued by
NWS Memphis, TN
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Crittenden County, AR, St. Francis County, AR, DeSoto County, MS, Tunica County, MS, Shelby County, TN

The radar

The Memphis radar (KNQA), 65 km from the middle of the area, began a volume at 01:27 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Mar 27, 1:51 PM CDTTornado WatchSPC7 hr

The nearest sounding before it

Little Rock, AR (KLZK), launched 00:00Z, 1.4 hours before the alert went out and 38 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.

405 
WUUS54 KMEG 280126
SVRMEG
ARC035-123-MSC033-143-TNC157-280215-
/O.NEW.KMEG.SV.W.0039.210328T0126Z-210328T0215Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Memphis TN
826 PM CDT Sat Mar 27 2021

The National Weather Service in Memphis has issued a

* Severe Thunderstorm Warning for...
  Southeastern St. Francis County in eastern Arkansas...
  Southern Crittenden County in eastern Arkansas...
  Northwestern DeSoto County in northwestern Mississippi...
  Northeastern Tunica County in northwestern Mississippi...
  Southwestern Shelby County in western Tennessee...

* Until 915 PM CDT.

* At 826 PM CDT, a severe thunderstorm was located near Horseshoe
  Lake, or near Hughes, moving northeast at 30 mph.

  HAZARD...60 mph wind gusts and quarter size hail.

  SOURCE...Radar indicated.

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees.

* Locations impacted include...
  Southaven, Olive Branch, Horn Lake, Hughes, T O Fuller State Park,
  Memphis, Walls, Horseshoe Lake, Pinckney, Lake Cormorant, Southwest
  Memphis, Lynchburg, Whitehaven, Robinsonville, Newport, Clack,
  Commerce, Presidents Island, Bruins and Beck.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 900 PM CDT for eastern
Arkansas...northwestern Mississippi...and western Tennessee.

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3493 9051 3514 9012 3511 8993 3495 8990
      3477 9041 3488 9048 3489 9047 3489 9044
      3487 9043 3484 9043 3483 9041 3490 9041
      3490 9049
TIME...MOT...LOC 0126Z 244DEG 27KT 3489 9038 

HAIL...1.00IN
WIND...60MPH
 
$$

KRM
1 follow-up statement
086 
WWUS54 KMEG 280137
SVSMEG

Severe Weather Statement
National Weather Service Memphis TN
837 PM CDT Sat Mar 27 2021

ARC035-123-MSC033-143-TNC157-280147-
/O.CAN.KMEG.SV.W.0039.000000T0000Z-210328T0215Z/
St. Francis AR-Crittenden AR-DeSoto MS-Tunica MS-Shelby TN-
837 PM CDT Sat Mar 27 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN ST. FRANCIS...
SOUTHERN CRITTENDEN...NORTHWESTERN DESOTO...NORTHEASTERN TUNICA AND
SOUTHWESTERN SHELBY COUNTIES IS CANCELLED...
                
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning has been cancelled.

A Tornado Watch remains in effect until 900 PM CDT for eastern
Arkansas...northwestern Mississippi...and western Tennessee.

LAT...LON 3493 9051 3514 9012 3511 8993 3495 8990
      3477 9041 3488 9048 3489 9047 3489 9044
      3487 9043 3484 9043 3483 9041 3490 9041
      3490 9049
TIME...MOT...LOC 0135Z 244DEG 27KT 3493 9029 

$$

KRM

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 27, 7:02 PM CDTTornado WarningMEGDyer, Lauderdale43 min
Mar 27, 7:03 PM CDTTornado WarningMEGLauderdale, Tipton42 min
Mar 27, 7:22 PM CDTSpecial Weather StatementMEGHaywood23 min
Mar 27, 7:35 PM CDTSevere Thunderstorm WarningMEGCrockett, Gibson, Haywood, Madison40 min
Mar 27, 7:41 PM CDTSpecial Weather StatementMEGChester34 min
Mar 27, 7:44 PM CDTSpecial Weather StatementMEGDyer31 min
Mar 27, 7:52 PM CDTSpecial Weather StatementMEGLauderdale23 min
Mar 27, 7:54 PM CDTSpecial Weather StatementMEGShelby21 min
Mar 27, 8:04 PM CDTSevere Thunderstorm WarningMEGChester, Decatur, Henderson41 min
Mar 27, 8:07 PM CDTTornado WarningMEGShelby, Tipton38 min
Mar 27, 8:18 PM CDTSevere Thunderstorm WarningMEGHenderson, Madison42 min
Mar 27, 8:20 PM CDTSpecial Weather StatementMEGDyer25 min
Mar 27, 8:23 PM CDTFlash Flood WarningMEGChester, Henderson, Madison6 hr
Mar 27, 8:37 PM CDTTornado WarningMEGDecatur23 min
Mar 27, 8:39 PM CDTSevere Thunderstorm WarningMEGLauderdale, Tipton34 min
Mar 27, 8:43 PM CDTAreal Flood AdvisoryMEGDecatur19 min
Mar 27, 8:43 PM CDTSevere Thunderstorm WarningMEGChester, Henderson, Madison47 min
Mar 27, 9:02 PM CDTFlash Flood WarningMEGDecatur7 hr
Mar 27, 9:09 PM CDTAreal Flood AdvisoryMEGShelby3 hr
Mar 27, 9:20 PM CDTSevere Thunderstorm WarningMEGCrockett, Haywood, Madison40 min
Mar 27, 9:29 PM CDTSevere Thunderstorm WarningMEGBenton, Decatur, Henderson31 min
Mar 27, 9:32 PM CDTSevere Thunderstorm WarningMEGFayette, Hardeman, Haywood, Madison, Shelby, Tipton43 min
Mar 27, 9:37 PM CDTAreal Flood AdvisoryMEGCarroll, Gibson, Henry, Weakley3 hr
Mar 27, 9:53 PM CDTSevere Thunderstorm WarningMEGFayette, Shelby, Tipton52 min
Mar 27, 9:58 PM CDTSevere Thunderstorm WarningMEGCarroll, Chester, Crockett, Fayette, Gibson, Hardeman and 3 more47 min
Mar 27, 10:03 PM CDTFlash Flood WarningMEGBenton, Carroll, Decatur, Henderson4 hr
Mar 27, 10:17 PM CDTFlash Flood WarningMEGFayette, Shelby3 hr
Mar 27, 10:28 PM CDTRiver Flood WarningMEGDecatur, Perry11 days
Mar 27, 10:35 PM CDTFlash Flood WarningMEGHaywood, Madison, Tipton3 hr
Mar 27, 10:39 PM CDTSevere Thunderstorm WarningMEGFayette, Hardeman, Haywood, Lauderdale, Shelby, Tipton36 min
Mar 27, 10:42 PM CDTTornado WarningMEGChester, Decatur, Hardeman, Henderson, Madison29 min
Mar 27, 10:49 PM CDTFlash Flood WarningMEGShelby3 hr
Mar 27, 11:09 PM CDTSevere Thunderstorm WarningMEGChester, Fayette, Hardeman, Haywood, McNairy, Madison51 min
Mar 27, 11:11 PM CDTFlash Flood WarningMEGFayette, Hardeman3 hr
Mar 27, 11:25 PM CDTTornado WarningMEGChester, Hardeman, McNairy14 min
Mar 27, 11:54 PM CDTSevere Thunderstorm WarningMEGChester, Decatur, Hardin, Henderson, McNairy51 min
Mar 27, 11:58 PM CDTTornado WarningMEGMcNairy17 min
Mar 28, 12:12 AM CDTTornado WarningMEGHardin33 min
Mar 28, 2:30 PM CDTRiver Flood WarningMEGBenton, Henry, Houston, Humphreys, Stewart10 days
Mar 27, 7:50 PM CDTTornado WarningMEGTunica40 min
Mar 27, 9:12 PM CDTSevere Thunderstorm WarningMEGCoahoma, Quitman48 min
Mar 27, 9:35 PM CDTTornado WarningMEGCoahoma40 min
Mar 27, 9:37 PM CDTTornado WarningMEGCoahoma, Quitman, Tunica53 min
Mar 27, 9:49 PM CDTTornado WarningMEGCoahoma, Tunica31 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, 10:56 PM CDTTornado WarningMEGBenton, Lafayette, Marshall, Tate, Tippah49 min
Mar 27, 11:23 PM CDTFlash Flood WarningMEGCoahoma, Panola, Quitman, Tate, Tunica4 hr
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 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
Mar 28, 11:45 AM CDTRiver Flood AdvisoryMEGCoahoma, Tunica24 hr
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, 8:50 PM CDTSpecial Weather StatementMEGPhillips25 min

Nearby

Severe Thunderstorm Warnings in Mississippi, 2021Severe Thunderstorm Warnings in Arkansas, 2021Severe Thunderstorm Warnings in Tennessee, 2021Every severe thunderstorm 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.