Alert archive / Tennessee / Special Weather Statements in 2021

Special Weather Statement, NWS Memphis, TN

May 4, 2021Lake County, Tennessee; Pemiscot County, Missouri

NWS Memphis, TN issued this special weather statement at May 4, 2021, 6:56 PM CDT for Lake County, Tennessee; Pemiscot County, Missouri. It was in force for 34 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: May 4, 2021, 6:56 PM CDT (23:56 UTC)
Expired: May 4, 2021, 7:30 PM CDT
In force: 34 min
Issued by: NWS Memphis, TN

Counties Pemiscot County, MO, Lake County, TN

The radar

The Memphis radar (KNQA), 102 km from the middle of the area, began a volume at 23:59 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, 11.9 hours before the alert went out and 159 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: 10 J/kg
Mixed-layer CIN: -373 J/kg
Mixed-layer LCL: 1101 m above ground
0-6 km bulk shear: 52 kt
0-1 km storm-relative helicity: 62 m²/s²
0-3 km storm-relative helicity: 100 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <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>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

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 May 4, 6:32 PM CDT, 24 minutes earlier.

Area forecast discussion, May 4, 6:32 PM CDT, 24 minutes before

Area Forecast Discussion
National Weather Service Memphis TN
632 PM CDT Tue May 4 2021

.DISCUSSION...
Updated for Aviation Discussion.

&&

.PREV DISCUSSION... /issued 300 PM CDT Tue May 4 2021/

DISCUSSION...

North Mississippi and east central Arkansas destabilized quickly
morning as temperatures briefly climbed into the upper 70s to
lower 80s. Dew points were in the low to mid 70s resulting in
MLCAPE over 2000J/kg. Steep mid-level lapse rates in excess of 7.5
C/km and deep shear will continue to result in large hail and
possibly damaging wind this afternoon. These conditions prompted a
severe thunderstorm watch that will continue through 4 pm. An
additional watch may be required, or the current one extended.

A cold front has moved through Jonesboro, AR and Kennett, MO and
will continue to move across the remainder of the Midsouth this
evening and overnight. As the front passes the threat for severe
storms should end. Temperatures are expected to fall into the 50s.
Wednesday through Friday are expected to be cool and dry. Expect
lows in the 40s to low 50s Thursday and Friday. Highs Wednesday
through Friday should be in the 70s.

Over the weekend into early next week, rain will return to the
Midsouth. Northwest flow will gradually transition to zonal flow
with a series of weak disturbances moving across the Midsouth.
Temperatures will trend slightly warmer. Expect afternoon highs
back in the upper 70s to low 80s. Severe storms do not look
likely, but with several days of rain some flooding could develop.

30

&&

.AVIATION...

For 00Z TAFs

A line of showers and thunderstorms moving across the area with
the frontal system. The winds behind the front from the
northwest. Showers are still developing ahead of the front, yet
nothing behind the front. Expect to have low clouds tonight with
improving ceilings on Wednesday. Don't have any fog in the TAFs,
yet a couple sites may have some reduced visibility tonight. Winds
may be gusty behind the front for a while. TLSJr

&&

.MEG WATCHES/WARNINGS/ADVISORIES...
AR...None.
MO...None.
MS...None.
TN...None.
&&

Hazardous weather outlook, May 4, 5:08 PM CDT, 1 hour 48 minutes before

Hazardous Weather Outlook
National Weather Service Memphis TN
508 PM CDT Tue May 4 2021

ARZ009-018-026>028-035-036-048-049-058-MOZ113-115-MSZ001>017-
020>024-TNZ001>004-019>022-048>055-088>092-060015-
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-
508 PM CDT Tue May 4 2021

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

.DAY ONE...Tonight

Another round of strong to severe thunderstorms is expected this
evening, mainly north of I-40. Damaging winds and large hail will
be the main threats. Although an isolated tornado is possible.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed this evening. Please relay any
information about observed severe weather to the NWS while
following all local, state, and CDC guidelines.

KRM

In the hours before

Local storm report, May 4, 5:50 PM CDT, 1 hour 6 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MEMPHIS TN
550 PM CDT TUE MAY 04 2021

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0300 PM     TSTM WND DMG     RIPLEY                  34.73N  88.94W
05/04/2021                   TIPPAH             MS   BROADCAST MEDIA

            TREE FELL ON OUTDOOR GAZEBO IN RIPLEY.

&&

Local storm report, May 4, 5:56 PM CDT, 1 hour before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MEMPHIS TN
556 PM CDT TUE MAY 04 2021

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0335 PM     TSTM WND DMG     HOUSTON                 33.90N  89.00W
05/04/2021                   CHICKASAW          MS   SOCIAL MEDIA

            TREES AND POWER LINE DOWN IN RESIDENTIAL AREA OF
            HOUSTON.

&&

Special weather statement, May 4, 5:56 PM CDT, 1 hour before

Special Weather Statement
National Weather Service Memphis TN
556 PM CDT Tue May 4 2021

ARZ009-018-026>028-035-MOZ113-042330-
Poinsett AR-Greene AR-Craighead AR-Cross AR-Mississippi AR-Clay AR-
Dunklin MO-
556 PM CDT Tue May 4 2021

...A SIGNIFICANT WEATHER ADVISORY HAS BEEN ISSUED UNTIL 630 PM CDT
FOR...

Poinsett County in eastern Arkansas...
Central Greene County in eastern Arkansas...
Craighead County in eastern Arkansas...
Northern Cross County in eastern Arkansas...
Northwestern Mississippi County in eastern Arkansas...
Eastern Clay County in eastern Arkansas...
Dunklin County in southeastern Missouri...

At 555 PM CDT...strong thunderstorms producing pea size hail or
larger and winds at least 40 mph was located along a line extending
from near Saint Francis to near Vanndale. Movement was east at 35
mph.

Very heavy rain along with continuous cloud to ground lightning are
also possible with this thunderstorm.

People in Poinsett...central Greene...Craighead...northern Cross...
northwestern Mississippi...eastern Clay and Dunklin Counties should
monitor this storm closely.

LAT...LON 3649 9033 3649 8996 3616 8996 3544 9043
      3544 9050 3534 9050 3536 9104 3539 9104
TIME...MOT...LOC 2255Z 275DEG 29KT 3642 9009 3535 9086

SJM

Special weather statement, May 4, 6:20 PM CDT, 36 minutes before

Special Weather Statement
National Weather Service Memphis TN
620 PM CDT Tue May 4 2021

ARZ027-028-035-036-050000-
Poinsett AR-Cross AR-Mississippi AR-Crittenden AR-
620 PM CDT Tue May 4 2021

...A SIGNIFICANT WEATHER ADVISORY HAS BEEN ISSUED UNTIL 700 PM CDT
FOR...

Southeastern Poinsett County in eastern Arkansas...
Cross County in eastern Arkansas...
Southwestern Mississippi County in eastern Arkansas...
Northwestern Crittenden County in eastern Arkansas...

At 619 PM CDT...a strong thunderstorm producing pea size hail or
larger and winds at least 40 mph was located 7 miles north of Parkin,
moving east at 40 mph.

Very heavy rain along with continuous cloud to ground lightning are
also possible with this thunderstorm.

People in southeastern Poinsett...Cross...southwestern Mississippi
and northwestern Crittenden Counties should monitor this storm
closely.

LAT...LON 3558 9058 3558 9005 3518 9034 3519 9104
TIME...MOT...LOC 2319Z 275DEG 36KT 3537 9061

SJM

Special weather statement, May 4, 6:25 PM CDT, 31 minutes before

Special Weather Statement
National Weather Service Memphis TN
625 PM CDT Tue May 4 2021

ARZ009-018-026>028-MOZ113-115-050000-
Poinsett AR-Greene AR-Craighead AR-Mississippi AR-Clay AR-
Pemiscot MO-Dunklin MO-
625 PM CDT Tue May 4 2021

...A SIGNIFICANT WEATHER ADVISORY HAS BEEN ISSUED UNTIL 700 PM CDT
FOR...

Northeastern Poinsett County in eastern Arkansas...
Southeastern Greene County in eastern Arkansas...
Eastern Craighead County in eastern Arkansas...
Northwestern Mississippi County in eastern Arkansas...
Southeastern Clay County in eastern Arkansas...
Pemiscot County in southeastern Missouri...
Dunklin County in southeastern Missouri...

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 Gideon to near Trumann. Movement was east at 20 mph.

Very heavy rain along with continuous cloud to ground lightning are
also possible with this thunderstorm.

People in northeastern Poinsett...southeastern Greene...eastern
Craighead...northwestern Mississippi...southeastern Clay...Pemiscot
and Dunklin Counties should monitor this storm closely.

LAT...LON 3639 8997 3639 8975 3642 8974 3643 8973
      3640 8967 3640 8965 3641 8962 3640 8959
      3638 8958 3625 8968 3625 8970 3623 8970
      3558 9015 3558 9070 3649 9004 3649 8996
TIME...MOT...LOC 2325Z 273DEG 18KT 3643 8992 3560 9052

SJM

Special weather statement, May 4, 6:56 PM CDT, 0 minutes before

Special Weather Statement
National Weather Service Memphis TN
656 PM CDT Tue May 4 2021

ARZ028-MOZ113-115-TNZ001-002-019-050030-
Mississippi AR-Pemiscot MO-Dunklin MO-Lake TN-Obion TN-Dyer TN-
656 PM CDT Tue May 4 2021

...A SIGNIFICANT WEATHER ADVISORY HAS BEEN ISSUED UNTIL 730 PM CDT
FOR...

Northeastern Mississippi County in eastern Arkansas...
Pemiscot County in southeastern Missouri...
Southeastern Dunklin County in southeastern Missouri...
Lake County in western Tennessee...
Southwestern Obion County in western Tennessee...
Western Dyer County in western Tennessee...

At 656 PM CDT...a strong thunderstorm producing pea size hail or
larger and winds at least 40 mph was located near Steele, moving east
at 30 mph.

Very heavy rain along with continuous cloud to ground lightning are
also possible with this thunderstorm.

People in northeastern Mississippi...Pemiscot...southeastern
Dunklin...Lake...southwestern Obion and western Dyer Counties should
monitor this storm closely.

LAT...LON 3643 8929 3595 8943 3595 8949 3592 8951
      3594 8955 3593 8957 3595 9017 3639 8989
      3639 8975 3643 8973 3640 8967 3641 8960
      3634 8954 3638 8951 3643 8954
TIME...MOT...LOC 2356Z 276DEG 27KT 3615 8980

SJM

The office that day

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

Issued	Product	Office	Counties	Lasted
May 4, 4:47 AM CDT	Areal Flood Advisory	MEG	DeSoto	73 min
May 4, 7:15 AM CDT	Special Weather Statement	MEG	Monroe	30 min
May 4, 9:44 AM CDT	Special Weather Statement	MEG	Monroe	46 min
May 4, 9:48 AM CDT	Special Weather Statement	MEG	Calhoun, Chickasaw, Yalobusha	57 min
May 4, 10:44 AM CDT	Special Weather Statement	MEG	Calhoun, Chickasaw, Lee, Pontotoc	46 min
May 4, 10:52 AM CDT	Special Weather Statement	MEG	Monroe	23 min
May 4, 11:44 AM CDT	Special Weather Statement	MEG	Chickasaw	31 min
May 4, 12:24 PM CDT	Special Weather Statement	MEG	Chickasaw, Monroe	36 min
May 4, 12:36 PM CDT	Special Weather Statement	MEG	Panola, Tate	24 min
May 4, 1:06 PM CDT	Severe Thunderstorm Warning	MEG	Lafayette, Marshall, Panola, Tate	24 min
May 4, 1:27 PM CDT	Severe Thunderstorm Warning	MEG	Benton, Lafayette, Marshall, Panola, Tate, Union	33 min
May 4, 1:53 PM CDT	Special Weather Statement	MEG	Tallahatchie, Yalobusha	37 min
May 4, 2:02 PM CDT	Special Weather Statement	MEG	Benton, Union	28 min
May 4, 2:23 PM CDT	Special Weather Statement	MEG	Calhoun, Lafayette, Union, Yalobusha	22 min
May 4, 2:25 PM CDT	Areal Flood Advisory	MEG	Yalobusha	3 hr
May 4, 2:30 PM CDT	Severe Thunderstorm Warning	MEG	Alcorn, Benton, Tippah	30 min
May 4, 2:37 PM CDT	Severe Thunderstorm Warning	MEG	Itawamba, Lee, Pontotoc, Prentiss, Tishomingo, Union	26 min
May 4, 2:54 PM CDT	Areal Flood Advisory	MEG	Lafayette	3 hr
May 4, 2:58 PM CDT	Severe Thunderstorm Warning	MEG	Calhoun, Chickasaw	47 min
May 4, 3:00 PM CDT	Severe Thunderstorm Warning	MEG	Alcorn, Benton, Tippah	19 min
May 4, 3:02 PM CDT	Severe Thunderstorm Warning	MEG	Itawamba, Lee, Prentiss, Tishomingo, Union	16 min
May 4, 3:17 PM CDT	Severe Thunderstorm Warning	MEG	Itawamba, Lee	28 min
May 4, 3:33 PM CDT	Severe Thunderstorm Warning	MEG	Chickasaw, Itawamba, Lee, Monroe	57 min
May 4, 3:58 PM CDT	Areal Flood Advisory	MEG	Lee	3 hr
May 4, 4:10 PM CDT	Special Weather Statement	MEG	DeSoto	35 min
May 4, 2:34 AM CDT	Severe Thunderstorm Warning	MEG	Tipton	41 min
May 4, 2:59 AM CDT	Severe Thunderstorm Warning	MEG	Dyer, Lake, Lauderdale, Obion	46 min
May 4, 3:10 AM CDT	Special Weather Statement	MEG	Shelby, Tipton	35 min
May 4, 3:28 AM CDT	Severe Thunderstorm Warning	MEG	Carroll, Crockett, Dyer, Gibson, Obion, Weakley	47 min
May 4, 3:46 AM CDT	Special Weather Statement	MEG	Crockett	44 min
May 4, 3:54 AM CDT	Special Weather Statement	MEG	Fayette, Haywood, Shelby, Tipton	51 min
May 4, 4:10 AM CDT	Special Weather Statement	MEG	Henry	35 min
May 4, 4:18 AM CDT	Severe Thunderstorm Warning	MEG	Benton, Carroll, Henry, Weakley	27 min
May 4, 4:20 AM CDT	Special Weather Statement	MEG	Gibson	25 min
May 4, 4:43 AM CDT	Severe Thunderstorm Warning	MEG	Benton, Carroll, Decatur, Henderson, Henry	47 min
May 4, 11:40 AM CDT	River Flood Warning	MEG	Crockett, Dyer, Lauderdale	7 days
May 4, 5:28 PM CDT	Special Weather Statement	MEG	Henry	32 min
May 4, 5:43 PM CDT	Areal Flood Advisory	MEG	Shelby	3 hr
May 4, 6:29 PM CDT	Severe Thunderstorm Warning	MEG	Shelby, Tipton	46 min
May 4, 12:38 AM CDT	Severe Thunderstorm Warning	MEG	Clay, Greene	52 min
May 4, 1:30 AM CDT	Severe Thunderstorm Warning	MEG	Clay, Greene	45 min
May 4, 1:46 AM CDT	Flash Flood Warning	MEG	Clay, Greene	3 hr
May 4, 1:48 AM CDT	Special Weather Statement	MEG	Craighead, Poinsett	27 min
May 4, 1:57 AM CDT	Severe Thunderstorm Warning	MEG	Craighead, Greene, Poinsett	48 min
May 4, 2:08 AM CDT	Severe Thunderstorm Warning	MEG	Clay, Greene	52 min
May 4, 2:25 AM CDT	Severe Thunderstorm Warning	MEG	Clay, Craighead, Mississippi	50 min
May 4, 2:58 AM CDT	Areal Flood Advisory	MEG	Clay	2 hr
May 4, 11:37 AM CDT	River Flood Warning	MEG	Clay, Greene	47 hr
May 4, 5:03 PM CDT	Special Weather Statement	MEG	Craighead, Greene	27 min
May 4, 5:29 PM CDT	Special Weather Statement	MEG	Craighead, Greene, Poinsett	31 min
May 4, 5:56 PM CDT	Special Weather Statement	MEG	Craighead, Greene, Poinsett	34 min
May 4, 6:20 PM CDT	Special Weather Statement	MEG	Cross	40 min
May 4, 6:25 PM CDT	Special Weather Statement	MEG	Mississippi	35 min
May 4, 12:45 AM CDT	Special Weather Statement	MEG	Dunklin, Pemiscot	30 min
May 4, 1:34 AM CDT	Severe Thunderstorm Warning	MEG	Dunklin, Pemiscot	41 min

Nearby

Special Weather Statements in Tennessee, 2021 Special Weather Statements in Missouri, 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.