Alert archive / Mississippi / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 157, NWS Memphis, TN

June 11, 20214 counties in Mississippi

NWS Memphis, TN issued this severe thunderstorm warning at Jun 11, 2021, 5:33 PM CDT for 4 counties in Mississippi. It was in force for 26 min. 1 report 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
Jun 11, 2021, 5:33 PM CDT (22:33 UTC)
Expired
Jun 11, 2021, 5:59 PM CDT
In force
26 min
Issued by
NWS Memphis, TN
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Lafayette County, MS, Marshall County, MS, Pontotoc County, MS, Union County, MS

The radar

The Columbus AFB radar (KGWX), 106 km from the middle of the area, began a volume at 22:32 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
Jun 11, 5:50 PM CDTTSTM WND DMG4 Ese Cambridge, MSLARGE TREE DOWN ACROSS HIGHWAY 30 WEST OF THE PHILADELPHIA AREA. TIME ESTIMATED BY RADAR.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Little Rock, AR (KLZK), launched 12:00Z, 10.6 hours before the alert went out and 76 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 12:00Z on 2021-06-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1626 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 12:00Z on 2021-06-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 52 square meters per square second.193958Sfc1 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
1626 J/kg
Mixed-layer CIN
-57 J/kg
Mixed-layer LCL
933 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
52 m²/s²
0-3 km storm-relative helicity
109 m²/s²
Significant tornado parameter
0.3
Supercell composite
2.0

Open this sounding in Storm Lab

The text

As transmitted.

937 
WUUS54 KMEG 112233
SVRMEG
MSC071-093-115-145-112315-
/O.NEW.KMEG.SV.W.0157.210611T2233Z-210611T2315Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Memphis TN
533 PM CDT Fri Jun 11 2021

The National Weather Service in Memphis has issued a

* Severe Thunderstorm Warning for...
  Eastern Lafayette County in northwestern Mississippi...
  Western Union County in northeastern Mississippi...
  Northwestern Pontotoc County in northeastern Mississippi...
  Southeastern Marshall County in northwestern Mississippi...

* Until 615 PM CDT.

* At 533 PM CDT, a severe thunderstorm was located near Bethlehem, or
  14 miles southeast of Wall Doxey State Park, moving south at 15
  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...
  Ecru, Cambridge, Etta, Bethlehem, Tula, Denmark, Pinedale, Thaxton,
  Myrtle, Toccopola, Hortontown, Keel, Poolville, Esperanza, Cherry
  Creek, Old Myrtle, Delay, Nixon, Martintown and Ingomar.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3420 8937 3454 8943 3459 8927 3458 8925
      3459 8924 3460 8922 3460 8913 3429 8895
TIME...MOT...LOC 2233Z 346DEG 14KT 3450 8931 

HAIL...1.00IN
WIND...60MPH
 
$$
1 follow-up statement
636 
WWUS54 KMEG 112259
SVSMEG

Severe Weather Statement
National Weather Service Memphis TN
559 PM CDT Fri Jun 11 2021

MSC071-093-115-145-112309-
/O.CAN.KMEG.SV.W.0157.000000T0000Z-210611T2315Z/
Lafayette MS-Union MS-Pontotoc MS-Marshall MS-
559 PM CDT Fri Jun 11 2021

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN LAFAYETTE...WESTERN
UNION...NORTHWESTERN PONTOTOC AND SOUTHEASTERN MARSHALL 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.

LAT...LON 3420 8937 3454 8943 3459 8927 3458 8925
      3459 8924 3460 8922 3460 8913 3429 8895
TIME...MOT...LOC 2258Z 346DEG 14KT 3440 8928 

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 10, 10:51 PM CDTAreal Flood WarningMEGQuitman, Tallahatchie, Yalobusha10 hr
Jun 11, 2:47 AM CDTAreal Flood AdvisoryMEGCalhoun, Lafayette, Panola, Pontotoc, Yalobusha3 hr
Jun 11, 4:20 AM CDTAreal Flood AdvisoryMEGCalhoun, Chickasaw, Pontotoc3 hr
Jun 11, 4:29 AM CDTFlash Flood WarningMEGLafayette3 hr
Jun 11, 6:26 AM CDTRiver Flood WarningMEGQuitman9 days
Jun 11, 6:29 AM CDTRiver Flood WarningMEGLafayette22 hr
Jun 11, 6:56 AM CDTAreal Flood AdvisoryMEGLee, Prentiss, Tippah, Union3 hr
Jun 11, 3:03 PM CDTAreal Flood AdvisoryMEGLee, Prentiss, Tippah3 hr
Jun 11, 3:21 PM CDTAreal Flood AdvisoryMEGAlcorn, Benton, Tippah2 hr
Jun 11, 4:03 PM CDTSpecial Weather StatementMEGItawamba27 min
Jun 11, 5:06 PM CDTSpecial Weather StatementMEGMonroe24 min
Jun 11, 5:18 PM CDTSpecial Weather StatementMEGUnion27 min
Jun 11, 5:40 PM CDTSpecial Weather StatementMEGMonroe35 min

Nearby

Severe Thunderstorm Warnings in Mississippi, 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.