Alert archive / Tennessee / Special Weather Statements in 2021

Special Weather Statement, NWS Memphis, TN

April 7, 2021Lauderdale County, Tipton County, Tennessee; Mississippi County, Arkansas

NWS Memphis, TN issued this special weather statement at Apr 7, 2021, 6:25 PM CDT for Lauderdale County, Tipton County, Tennessee; Mississippi County, Arkansas. It was in force for 50 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, 6:25 PM CDT (23:25 UTC)
Expired: Apr 7, 2021, 7:15 PM CDT
In force: 50 min
Issued by: NWS Memphis, TN

Counties Mississippi County, AR, Lauderdale County, TN, Tipton County, TN

The radar

The Memphis radar (KNQA), 45 km from the middle of the area, began a volume at 23:29 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 102 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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.

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What forecasters said that day

The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Memphis, TN wrote its last area forecast discussion before this special weather statement went out at Apr 7, 3:24 PM CDT, 3 hours 1 minute earlier.

Area forecast discussion, Apr 7, 3:24 PM CDT, 3 hours 1 minute before

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</head>
<body>
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    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
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        The site you requested is temporarily down for maintenance or an unexpected outage.
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Hazardous weather outlook, Apr 7, 12:20 PM CDT, 6 hours 5 minutes before

Hazardous Weather Outlook
National Weather Service Memphis TN
1220 PM CDT Wed Apr 7 2021

ARZ009-018-026>028-035-036-048-049-058-MOZ113-115-MSZ001>017-
020>024-TNZ001>004-019>022-048>055-088>092-081930-
Alcorn-Benton MS-Benton TN-Calhoun-Carroll-Chester-Chickasaw-Clay-
Coahoma-Craighead-Crittenden-Crockett-Cross-DeSoto-Decatur-
Dunklin-Dyer-Fayette-Gibson-Greene-Hardeman-Hardin-Haywood-
Henderson-Henry-Itawamba-Lafayette-Lake-Lauderdale-Lee AR-Lee MS-
Madison-Marshall-McNairy-Mississippi-Monroe-Obion-Panola-Pemiscot-
Phillips-Poinsett-Pontotoc-Prentiss-Quitman-Shelby-St. Francis-
Tallahatchie-Tate-Tippah-Tipton-Tishomingo-Tunica-Union-Weakley-
Yalobusha-
1220 PM CDT Wed Apr 7 2021

This hazardous weather outlook is for portions of East Arkansas...
the Missouri Bootheel...North Mississippi...and West Tennessee.

.DAY ONE...This Afternoon and Tonight

A wind advisory is in effect for areas along and west of the
Mississippi River until 7 pm this evening.

Strong to severe thunderstorms will be possible across the
Mid-South late this afternoon into tonight. Damaging winds,
tornadoes, and large hail will be the main threats from the
storms. Locally heavy rainfall will also be possible which may
lead to flash flooding. Best chances for severe storms will occur
across East-Central Arkansas and Northwest Mississippi.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday

Strong to severe thunderstorms will be possible Friday Night into
Saturday across the Mid-South. Damaging winds and tornadoes will
be the main threats. Locally heavy rainfall may also occur which
may lead to flash flooding.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed late this afternoon into tonight
and again Friday Night into Saturday.

SJM

In the hours before

Special weather statement, Apr 7, 6:21 PM CDT, 4 minutes before

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

Special weather statement, Apr 7, 6:25 PM CDT, 0 minutes before

Special Weather Statement
National Weather Service Memphis TN
625 PM CDT Wed Apr 7 2021

ARZ028-TNZ019-048>050-080015-
Mississippi AR-Tipton TN-Lauderdale TN-Haywood TN-Dyer TN-
625 PM CDT Wed Apr 7 2021

...A SIGNIFICANT WEATHER ADVISORY HAS BEEN ISSUED UNTIL 715 PM CDT
FOR...

Central Mississippi County in eastern Arkansas...
Tipton County in western Tennessee...
Lauderdale County in western Tennessee...
Western Haywood County in western Tennessee...
Southwestern Dyer County in western Tennessee...

At 625 PM CDT...strong thunderstorms producing pea size hail or
larger and winds at least 40 mph was located along a line extending
from near Dell to 6 miles west of Dixonville. Movement was east at 50
mph.

Very heavy rain is also possible with this thunderstorm.

People in central Mississippi...Tipton...Lauderdale...western Haywood
and southwestern Dyer Counties should monitor this storm closely.

LAT...LON 3584 8935 3583 8936 3582 8935 3545 8936
      3539 9009 3541 9011 3541 9014 3539 9015
      3600 9008 3600 8971 3602 8969 3604 8935
TIME...MOT...LOC 2325Z 256DEG 43KT 3590 8998 3545 9005

MJH

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 7, 11:20 AM CDT	Wind Advisory	MEG	Coahoma, DeSoto, Quitman, Tunica	8 hr
Apr 7, 6:21 PM CDT	Special Weather Statement	MEG	DeSoto, Tate	24 min
Apr 7, 6:48 PM CDT	Special Weather Statement	MEG	Tate	27 min
Apr 7, 6:54 PM CDT	Severe Thunderstorm Warning	MEG	Fayette, Shelby	20 min
Apr 7, 5:56 PM CDT	Areal Flood Advisory	MEG	Craighead	115 min
Apr 7, 6:52 PM CDT	Areal Flood Advisory	MEG	Crittenden, Mississippi, Poinsett	2 hr

Nearby

Special Weather Statements in Tennessee, 2021 Special Weather Statements in Arkansas, 2021 Every 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.