Alert archive / Mississippi / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 143, NWS Memphis, TN

May 9, 20215 counties in Mississippi

NWS Memphis, TN issued this severe thunderstorm warning at May 9, 2021, 7:05 PM CDT for 5 counties in Mississippi. It was in force for 40 min. 10 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
May 9, 2021, 7:05 PM CDT (00:05 UTC)
Expired
May 9, 2021, 7:45 PM CDT
In force
40 min
Issued by
NWS Memphis, TN
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Chickasaw County, MS, Lafayette County, MS, Lee County, MS, Pontotoc County, MS, Union County, MS

The radar

The Columbus AFB radar (KGWX), 77 km from the middle of the area, began a volume at 00:05 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
May 9, 7:05 PM CDTTSTM WND DMG1 Nne Etta, MSDAMAGE TO ROOF AND CARPORT AT HOME ALONG HIGHWAY 30. NUMEROUS TREES DOWN.
May 9, 7:15 PM CDTTSTM WND DMG4 N Pontotoc, MSTREES DOWN AND DAMAGE TO A DOG RUN ON HARMONY LOOP.
May 9, 7:15 PM CDTTSTM WND DMGEcru, MSLARGE TREE DOWN IN ECRU.
May 9, 7:20 PM CDTTSTM WND DMG4 Nnw Ecru, MSNUMEROUS TREES DOWN IN THE INGOMAR COMMUNITY.
May 9, 7:24 PM CDTTSTM WND DMGTroy, MSTREES DOWN IN TROY. TIME IS RADAR ESTIMATED.
May 9, 7:25 PM CDTTSTM WND DMGThaxton, MSTREES DOWN ON AND ACROSS HIGHWAY 336 IN THE THAXTON AREA.
May 9, 7:25 PM CDTTSTM WND DMGTupelo, MSTREES DOWN IN TUPELO. ONE REPORT OF FALLEN TREE ON HOUSE.
May 9, 7:32 PM CDTTSTM WND DMG5 Nw Tupelo, MSSEVERAL TREES DOWN IN TOWN OF BELDEN.
May 9, 7:39 PM CDTHAIL 0.754 Sse Algoma, MS
May 9, 7:45 PM CDTTSTM WND DMG3 S Plantersville, MSNUMEROUS TREES DOWN ON HIGHWAY 6 NEAR RD 598.

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

The watch it was issued in

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

IssuedProductOfficeLasted
May 9, 2:27 PM CDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Little Rock, AR (KLZK), launched 00:00Z, 0.1 hours before the alert went out and 105 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 2021-05-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 762 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Little Rock, AR at 00:00Z on 2021-05-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -37 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
762 J/kg
Mixed-layer CIN
-33 J/kg
Mixed-layer LCL
787 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
-37 m²/s²
0-3 km storm-relative helicity
81 m²/s²
Significant tornado parameter
0.2
Supercell composite
1.6

Open this sounding in Storm Lab

The text

As transmitted.

588 
WUUS54 KMEG 100005
SVRMEG
MSC017-071-081-115-145-100045-
/O.NEW.KMEG.SV.W.0143.210510T0005Z-210510T0045Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Memphis TN
705 PM CDT Sun May 9 2021

The National Weather Service in Memphis has issued a

* Severe Thunderstorm Warning for...
  Eastern Lafayette County in northwestern Mississippi...
  Northeastern Chickasaw County in northeastern Mississippi...
  Union County in northeastern Mississippi...
  Pontotoc County in northeastern Mississippi...
  Lee County in northeastern Mississippi...

* Until 745 PM CDT.

* At 705 PM CDT, a severe thunderstorm was located near Pinedale, or
  12 miles northwest of Pontotoc, moving southeast at 40 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...Expect damage to roofs, siding, and trees.

* Locations impacted include...
  Tupelo, New Albany, Pontotoc, Verona, Okolona, Trace State Park,
  Tombigbee State Park, Saltillo, Guntown, Shannon, Plantersville,
  Ecru, New Harmony, Randolph, Troy, Etta, Tula, Blair, Furrs and
  Denmark.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3413 8924 3416 8925 3416 8930 3426 8948
      3452 8932 3450 8925 3460 8924 3460 8916
      3442 8854 3436 8854 3409 8869 3409 8872
      3404 8872 3389 8880
TIME...MOT...LOC 0005Z 295DEG 36KT 3435 8918 

HAIL...<.75IN
WIND...60MPH
 
$$

SWB

The office that day

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

IssuedProductOfficeCountiesLasted
May 9, 7:18 PM CDTSevere Thunderstorm WarningMEGCalhoun, Chickasaw, Yalobusha27 min
May 9, 7:21 PM CDTSpecial Weather StatementMEGCoahoma, Quitman24 min
May 9, 7:28 PM CDTSpecial Weather StatementMEGTishomingo32 min
May 9, 7:28 PM CDTSevere Thunderstorm WarningMEGChickasaw, Itawamba, Lee, Monroe, Pontotoc, Union67 min
May 9, 7:44 PM CDTSevere Thunderstorm WarningMEGTishomingo16 min
May 9, 7:45 PM CDTAreal Flood AdvisoryMEGCoahoma, Panola, Quitman, Tallahatchie2 hr

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.