Alert archive / Missouri / Severe Thunderstorm Warnings in 2017
Severe Thunderstorm Warning 252, NWS Memphis, TN
NWS Memphis, TN issued this severe thunderstorm warning at Aug 11, 2017, 11:40 AM CDT for Dunklin County, Pemiscot County, Missouri; Clay County, Arkansas. It was in force for 35 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
- Aug 11, 2017, 11:40 AM CDT (16:40 UTC)
- Expired
- Aug 11, 2017, 12:15 PM CDT
- In force
- 35 min
- Issued by
- NWS Memphis, TN
- Area
- Storm-based polygon
- Tornado
- Possible
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Clay County, AR, Dunklin County, MO, Pemiscot County, MO
The radar
The Memphis radar (KNQA), 121 km from the middle of the area, began a volume at 16:41 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 (KBYH), launched 12:00Z, 4.7 hours before the alert went out and 177 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
- 1097 J/kg
- Mixed-layer CIN
- -31 J/kg
- Mixed-layer LCL
- 851 m above ground
- 0-6 km bulk shear
- 12 kt
- 0-1 km storm-relative helicity
- 20 m²/s²
- 0-3 km storm-relative helicity
- 52 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
341
WUUS54 KMEG 111640
SVRMEG
ARC021-MOC069-155-111715-
/O.NEW.KMEG.SV.W.0252.170811T1640Z-170811T1715Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Memphis TN
1140 AM CDT FRI AUG 11 2017
The National Weather Service in Memphis has issued a
* Severe Thunderstorm Warning for...
Eastern Clay County in eastern Arkansas...
Northwestern Pemiscot County in southeastern Missouri...
Northeastern Dunklin County in southeastern Missouri...
* Until 1215 PM CDT
* At 1139 AM CDT, a severe thunderstorm was located near Greenway, or
near Piggott, moving east at 35 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
Kennett, Piggott, Campbell, Rector, Chalk Bluff Natural Area,
Clarkton, Holcomb, St. Francis, Pollard, Greenway, Deering, Saint
Francis, Crockett, Bragg City, Nimmons, Lorine, West Kennett, Bell
City, Pratt and Hargrave Corner.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3650 8996 3645 8996 3639 8997 3638 8983
3617 8988 3627 9039 3650 9034 3650 9022
3651 9022
TIME...MOT...LOC 1639Z 280DEG 30KT 3638 9026
TORNADO...POSSIBLE
HAIL...<.75IN
WIND...60MPH
$$2 follow-up statements
218
WWUS54 KMEG 111659
SVSMEG
Severe Weather Statement
National Weather Service Memphis TN
1159 AM CDT FRI AUG 11 2017
ARC021-MOC069-155-111715-
/O.CON.KMEG.SV.W.0252.000000T0000Z-170811T1715Z/
Clay AR-Pemiscot MO-Dunklin MO-
1159 AM CDT FRI AUG 11 2017
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1215 PM CDT
FOR EASTERN CLAY...NORTHWESTERN PEMISCOT AND EAST CENTRAL DUNKLIN
COUNTIES...
At 1159 AM CDT, a severe thunderstorm was located near Holcomb, or
near Piggott, moving east at 30 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Kennett, Piggott, Clarkton, Holcomb, St. Francis, Greenway, Saint
Francis, Deering, Bragg City, Nimmons, Bell City, Hargrave Corner,
Carryville, Holly Island, Rhyne, Lorine, West Kennett, White Oak,
Ipley and Tinkerville.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3639 8997 3638 8983 3617 8988 3625 9027
3648 9023 3647 8996 3645 8996
TIME...MOT...LOC 1659Z 280DEG 27KT 3635 9008
HAIL...<.75IN
WIND...60MPH
$$235
WWUS54 KMEG 111712
SVSMEG
Severe Weather Statement
National Weather Service Memphis TN
1212 PM CDT FRI AUG 11 2017
ARC021-MOC069-155-111722-
/O.EXP.KMEG.SV.W.0252.000000T0000Z-170811T1715Z/
Clay AR-Pemiscot MO-Dunklin MO-
1212 PM CDT FRI AUG 11 2017
...THE SEVERE THUNDERSTORM WARNING FOR EASTERN CLAY...NORTHWESTERN
PEMISCOT AND EAST CENTRAL DUNKLIN COUNTIES WILL EXPIRE AT 1215 PM
CDT...
The storm which prompted the warning has weakened below severe
limits, and no longer pose an immediate threat to life or property.
Therefore, the warning will be allowed to expire.
LAT...LON 3639 8997 3638 8983 3617 8988 3625 9027
3648 9023 3647 8996 3645 8996
TIME...MOT...LOC 1712Z 280DEG 30KT 3633 8996
$$The office that day
Everything else NWS Memphis, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 11, 12:48 PM CDT | Severe Thunderstorm Warning | MEG | Crittenden, Cross, Mississippi, Poinsett | 27 min |
| Aug 11, 1:13 PM CDT | Severe Thunderstorm Warning | MEG | Crittenden, Cross, St. Francis | 32 min |
| Aug 11, 1:30 PM CDT | Severe Thunderstorm Warning | MEG | Crittenden, Mississippi | 30 min |
Nearby
Severe Thunderstorm Warnings in Missouri, 2017Severe Thunderstorm Warnings in Arkansas, 2017Every severe thunderstorm warning in 2017
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.