Alert archive / Missouri / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 175, NWS Memphis, TN
NWS Memphis, TN issued this severe thunderstorm warning at Jul 31, 2021, 8:57 PM CDT for Lauderdale County, Tennessee; Mississippi County, Arkansas; Dunklin County, Pemiscot County, Missouri. It was in force for 48 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
- Jul 31, 2021, 8:57 PM CDT (01:57 UTC)
- Expired
- Jul 31, 2021, 9:45 PM CDT
- In force
- 48 min
- Issued by
- NWS Memphis, TN
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Mississippi County, AR, Dunklin County, MO, Pemiscot County, MO, Lauderdale County, TN
The radar
The Memphis radar (KNQA), 70 km from the middle of the area, began a volume at 01:57 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 |
|---|---|---|---|
| Jul 31, 9:15 PM CDT | TSTM WND DMG | Holland, MO | NUMEROUS TREES DOWN ACROSS SOUTHERN PART OF PEMISCOT COUNTY. |
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 00:00Z, 2.0 hours before the alert went out and 128 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.
- Mixed-layer CAPE
- 2334 J/kg
- Mixed-layer CIN
- -4 J/kg
- Mixed-layer LCL
- 1693 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 42 m²/s²
- 0-3 km storm-relative helicity
- 103 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
394
WUUS54 KMEG 010157
SVRMEG
ARC093-MOC069-155-TNC097-010245-
/O.NEW.KMEG.SV.W.0175.210801T0157Z-210801T0245Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Memphis TN
857 PM CDT Sat Jul 31 2021
The National Weather Service in Memphis has issued a
* Severe Thunderstorm Warning for...
Northeastern Mississippi County in eastern Arkansas...
Southwestern Pemiscot County in southeastern Missouri...
Southeastern Dunklin County in southeastern Missouri...
Central Lauderdale County in western Tennessee...
* Until 945 PM CDT.
* At 857 PM CDT, a severe thunderstorm was located over Hornersville,
or near Senath, moving southeast at 50 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
Blytheville, Kennett, Ripley, Osceola, Gosnell, Manila, Steele,
Senath, Luxora, Fort Pillow State Park, Hornersville, Arbyrd,
Cooter, Dell, Burdette, Fulton, Ashport, Ft Pillow, Holland and
Victoria.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 3600 8971 3600 8973 3597 8972 3592 8965
3590 8965 3592 8964 3592 8960 3579 8944
3564 8977 3564 8979 3562 8981 3556 8994
3611 9029 3613 9025 3615 9023 3618 9022
3623 9013 3626 9012 3627 9009 3629 9007
TIME...MOT...LOC 0157Z 316DEG 42KT 3605 9013
HAIL...<.75IN
WIND...60MPH
$$2 follow-up statements
076
WWUS54 KMEG 010233
SVSMEG
Severe Weather Statement
National Weather Service Memphis TN
933 PM CDT Sat Jul 31 2021
MOC069-010243-
/O.CAN.KMEG.SV.W.0175.000000T0000Z-210801T0245Z/
Dunklin MO-
933 PM CDT Sat Jul 31 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN DUNKLIN COUNTY IS
CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
LAT...LON 3600 8971 3600 8973 3597 8972 3592 8965
3590 8965 3592 8964 3592 8960 3579 8944
3564 8977 3564 8979 3562 8981 3556 8994
3594 9013 3601 8992 3608 8981
TIME...MOT...LOC 0233Z 316DEG 42KT 3575 8977
$$
ARC093-MOC155-TNC097-010245-
/O.CON.KMEG.SV.W.0175.000000T0000Z-210801T0245Z/
Mississippi AR-Pemiscot MO-Lauderdale TN-
933 PM CDT Sat Jul 31 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 945 PM CDT
FOR NORTHEASTERN MISSISSIPPI...SOUTH CENTRAL PEMISCOT AND CENTRAL
LAUDERDALE COUNTIES...
At 933 PM CDT, a severe thunderstorm was located over Ashport, or 8
miles east of Luxora, moving southeast at 50 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Blytheville, Ripley, Osceola, Gosnell, Luxora, Fort Pillow State
Park, Cooter, Dell, Burdette, Fulton, Ashport, Ft Pillow, Barr,
Edith, Calumet, Dearman, Barfield, O'Donnell Bend, Tomato and
Hightower.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 3600 8971 3600 8973 3597 8972 3592 8965
3590 8965 3592 8964 3592 8960 3579 8944
3564 8977 3564 8979 3562 8981 3556 8994
3594 9013 3601 8992 3608 8981
TIME...MOT...LOC 0233Z 316DEG 42KT 3575 8977
HAIL...<.75IN
WIND...60MPH
$$536
WWUS54 KMEG 010244
SVSMEG
Severe Weather Statement
National Weather Service Memphis TN
944 PM CDT Sat Jul 31 2021
ARC093-MOC155-TNC097-010254-
/O.EXP.KMEG.SV.W.0175.000000T0000Z-210801T0245Z/
Mississippi AR-Pemiscot MO-Lauderdale TN-
944 PM CDT Sat Jul 31 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN MISSISSIPPI...
SOUTH CENTRAL PEMISCOT AND CENTRAL LAUDERDALE COUNTIES WILL EXPIRE AT
945 PM CDT...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire.
LAT...LON 3600 8971 3600 8973 3597 8972 3592 8965
3590 8965 3592 8964 3592 8960 3579 8944
3564 8977 3564 8979 3562 8981 3556 8994
3594 9013 3601 8992 3608 8981
TIME...MOT...LOC 0244Z 316DEG 42KT 3566 8967
$$The office that day
Everything else NWS Memphis, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 31, 8:40 PM CDT | Special Weather Statement | MEG | Lake | 35 min |
| Jul 31, 9:09 PM CDT | Special Weather Statement | MEG | Henry, Weakley | 36 min |
| Jul 31, 9:26 PM CDT | Severe Thunderstorm Warning | MEG | Crockett, Dyer, Haywood, Lauderdale | 49 min |
| Jul 31, 9:44 PM CDT | Special Weather Statement | MEG | Lauderdale | 31 min |
| Jul 31, 9:58 PM CDT | Special Weather Statement | MEG | Crockett | 32 min |
| Jul 31, 10:05 PM CDT | Special Weather Statement | MEG | Gibson | 25 min |
| Jul 31, 10:23 PM CDT | Areal Flood Advisory | MEG | Gibson, Madison | 52 min |
| Jul 31, 10:25 PM CDT | Special Weather Statement | MEG | Carroll, Gibson | 35 min |
| Jul 31, 10:31 PM CDT | Severe Thunderstorm Warning | MEG | Benton, Carroll, Decatur, Gibson, Henderson, Madison | 44 min |
| Jul 31, 10:33 PM CDT | Special Weather Statement | MEG | Chester, Madison | 27 min |
| Jul 31, 10:48 PM CDT | Tornado Warning | MEG | Benton, Carroll, Decatur, Henderson | 42 min |
| Jul 31, 11:03 PM CDT | Special Weather Statement | MEG | Hardin | 27 min |
| Jul 31, 11:05 PM CDT | Special Weather Statement | MEG | Dyer | 25 min |
| Jul 31, 11:07 PM CDT | Severe Thunderstorm Warning | MEG | Chester, Decatur, Hardin, Henderson, McNairy | 23 min |
| Jul 31, 11:12 PM CDT | Severe Thunderstorm Warning | MEG | Decatur, Henderson | 18 min |
| Jul 31, 11:29 PM CDT | Severe Thunderstorm Warning | MEG | Decatur, Henderson | 16 min |
| Jul 31, 11:31 PM CDT | Special Weather Statement | MEG | Decatur | 14 min |
| Aug 1, 4:42 AM CDT | Areal Flood Advisory | MEG | Hardin | 2 hr |
| Aug 1, 8:33 AM CDT | Special Weather Statement | MEG | McNairy | 57 min |
| Jul 31, 8:07 PM CDT | Special Weather Statement | MEG | Clay | 38 min |
| Jul 31, 9:06 PM CDT | Tornado Warning | MEG | Mississippi | 24 min |
| Jul 31, 7:45 PM CDT | Special Weather Statement | MEG | Pemiscot | 15 min |
| Jul 31, 8:35 PM CDT | Special Weather Statement | MEG | Dunklin | 25 min |
| Jul 31, 8:56 PM CDT | Special Weather Statement | MEG | Dunklin | 34 min |
| Jul 31, 9:00 PM CDT | Special Weather Statement | MEG | Pemiscot | 30 min |
Nearby
Severe Thunderstorm Warnings in Missouri, 2021Severe Thunderstorm Warnings in Tennessee, 2021Severe Thunderstorm Warnings in Arkansas, 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.