Alert archive / Mississippi / Special Weather Statements in 2021

Special Weather Statement, NWS Memphis, TN

April 7, 2021DeSoto County, Tate County, Mississippi

NWS Memphis, TN issued this special weather statement at Apr 7, 2021, 6:21 PM CDT for DeSoto County, Tate County, Mississippi. It was in force for 24 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, 6:21 PM CDT (23:21 UTC)
Expired
Apr 7, 2021, 6:45 PM CDT
In force
24 min
Issued by
NWS Memphis, TN

Counties DeSoto County, MS, Tate County, MS

The radar

The Memphis radar (KNQA), 70 km from the middle of the area, began a volume at 23:24 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 12:00Z, 11.4 hours before the alert went out and 14 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 2021-04-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 23 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 2021-04-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 170 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
23 J/kg
Mixed-layer CIN
-264 J/kg
Mixed-layer LCL
721 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
170 m²/s²
0-3 km storm-relative helicity
140 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

177 
WWUS84 KMEG 072321
SPSMEG

Special Weather Statement
National Weather Service Memphis TN
621 PM CDT Wed Apr 7 2021
 
MSZ001-002-007-008-012-072345-
Tunica MS-Marshall MS-DeSoto MS-Panola MS-Tate MS-
621 PM CDT Wed Apr 7 2021

...A SIGNIFICANT WEATHER ADVISORY HAS BEEN ISSUED UNTIL 645 PM CDT
FOR...

East central Tunica County in northwestern Mississippi...
West central Marshall County in northwestern Mississippi...
Central DeSoto County in northwestern Mississippi...
Northwestern Panola County in northwestern Mississippi...
Tate County in northwestern Mississippi...

At 620 PM CDT...a strong thunderstorm producing winds at least 40 mph
was located near Strayhorn, or 13 miles west of Senatobia, moving
northeast at 40 mph.

Very heavy rain is also possible with this thunderstorm.

People in east central Tunica...west central Marshall...central
DeSoto...northwestern Panola and Tate Counties should monitor this
storm closely.

LAT...LON 3500 8991 3499 8987 3467 8962 3446 9020
      3451 9020 3451 9025 3468 9032
TIME...MOT...LOC 2320Z 239DEG 36KT 3462 9021 

$$

SGW

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 7, 11:20 AM CDTWind AdvisoryMEGCoahoma, DeSoto, Quitman, Tunica8 hr
Apr 7, 6:48 PM CDTSpecial Weather StatementMEGTate27 min
Apr 7, 6:25 PM CDTSpecial Weather StatementMEGLauderdale, Tipton50 min
Apr 7, 6:54 PM CDTSevere Thunderstorm WarningMEGFayette, Shelby20 min
Apr 7, 5:56 PM CDTAreal Flood AdvisoryMEGCraighead115 min
Apr 7, 6:52 PM CDTAreal Flood AdvisoryMEGCrittenden, Mississippi, Poinsett2 hr

Nearby

Special Weather Statements in Mississippi, 2021Every special weather statement 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.