Alert archive / Missouri / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 70, NWS Memphis, TN
NWS Memphis, TN issued this severe thunderstorm warning at Apr 7, 2021, 8:20 PM CDT for Dunklin County, Pemiscot County, Missouri; Clay County, Greene County, Arkansas. It was in force for 25 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
- Apr 7, 2021, 8:20 PM CDT (01:20 UTC)
- Expired
- Apr 7, 2021, 8:45 PM CDT
- In force
- 25 min
- Issued by
- NWS Memphis, TN
- Area
- Storm-based polygon
- Tornado
- Possible
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Clay County, AR, Greene County, AR, Dunklin County, MO, Pemiscot County, MO
The radar
The Memphis radar (KNQA), 90 km from the middle of the area, began a volume at 01:20 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 (KLZK), launched 00:00Z, 1.3 hours before the alert went out and 146 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
- 696 J/kg
- Mixed-layer CIN
- -6 J/kg
- Mixed-layer LCL
- 597 m above ground
- 0-6 km bulk shear
- 54 kt
- 0-1 km storm-relative helicity
- 165 m²/s²
- 0-3 km storm-relative helicity
- 178 m²/s²
- Significant tornado parameter
- 0.7
- Supercell composite
- 2.7
The text
As transmitted.
718
WUUS54 KMEG 080120
SVRMEG
ARC021-055-MOC069-155-080145-
/O.NEW.KMEG.SV.W.0070.210408T0120Z-210408T0145Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Memphis TN
820 PM CDT Wed Apr 7 2021
The National Weather Service in Memphis has issued a
* Severe Thunderstorm Warning for...
East central Greene County in eastern Arkansas...
Southeastern Clay County in eastern Arkansas...
West central Pemiscot County in southeastern Missouri...
Southern Dunklin County in southeastern Missouri...
* Until 845 PM CDT.
* At 819 PM CDT, a severe thunderstorm was located over Senath,
moving northeast at 35 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
Kennett, Senath, Cardwell, Arbyrd, Deering, Nimmons, Fritz, Lorine,
Mounds, West Kennett, Leonard, Bell City, Noland, Bertig, Holly
Island, White Oak, Rives, Ipley, Octa and Scobeville.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3614 8983 3600 9028 3600 9030 3615 9037
3637 9001
TIME...MOT...LOC 0119Z 246DEG 31KT 3615 9021
TORNADO...POSSIBLE
HAIL...<.75IN
WIND...60MPH
$$
MJHThe office that day
Everything else NWS Memphis, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 7, 8:09 PM CDT | Special Weather Statement | MEG | Dunklin | 51 min |
| Apr 7, 8:44 PM CDT | Severe Thunderstorm Warning | MEG | Dunklin, Pemiscot | 31 min |
| Apr 7, 7:21 PM CDT | Areal Flood Advisory | MEG | Mississippi | 2 hr |
| Apr 7, 8:03 PM CDT | Areal Flood Advisory | MEG | Mississippi | 108 min |
| Apr 7, 8:21 PM CDT | Areal Flood Advisory | MEG | Phillips | 91 min |
| Apr 7, 9:15 PM CDT | Special Weather Statement | MEG | Craighead | 30 min |
Nearby
Severe Thunderstorm Warnings in Missouri, 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.