Alert archive / Mississippi / Special Weather Statements in 2021

Special Weather Statement, NWS Memphis, TN

April 8, 2021Itawamba County, Mississippi

NWS Memphis, TN issued this special weather statement at Apr 8, 2021, 3:54 AM CDT for Itawamba County, Mississippi. It was in force for 36 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 8, 2021, 3:54 AM CDT (08:54 UTC)
Expired
Apr 8, 2021, 4:30 AM CDT
In force
36 min
Issued by
NWS Memphis, TN

County Itawamba County, MS

The radar

The Columbus AFB radar (KGWX), 33 km from the middle of the area, began a volume at 08:58 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, 8.9 hours before the alert went out and 162 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 00:00Z on 2021-04-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 696 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Little Rock, AR at 00:00Z on 2021-04-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 165 square meters per square second.19395878Sfc1 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
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

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 8, 3:19 AM CDT, 35 minutes earlier.

Area forecast discussion, Apr 8, 3:19 AM CDT, 35 minutes before
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Hazardous weather outlook, Apr 8, 12:15 AM CDT, 3 hours 39 minutes before
Hazardous Weather Outlook
National Weather Service Memphis TN
1215 AM CDT Thu Apr 8 2021

ARZ009-018-026>028-035-036-048-049-058-MOZ113-115-MSZ001>017-
020>024-TNZ001>004-019>022-048>055-088>092-081100-
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-
1215 AM CDT Thu Apr 8 2021

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

.DAY ONE...Tonight

A few strong to severe thunderstorms will be possible overnight.
The primary hazard will be damaging winds.

.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 Friday night into Saturday.

In the hours before

Special weather statement, Apr 7, 11:40 PM CDT, 4 hours 14 minutes before
Special Weather Statement
National Weather Service Memphis TN
1140 PM CDT Wed Apr 7 2021

MSZ016-017-023-024-080515-
Itawamba MS-Monroe MS-Lee MS-Chickasaw MS-
1140 PM CDT Wed Apr 7 2021

...A SIGNIFICANT WEATHER ADVISORY HAS BEEN ISSUED UNTIL 1215 AM CDT
FOR...

Southern Itawamba County in northeastern Mississippi...
Monroe County in northeastern Mississippi...
Southern Lee County in northeastern Mississippi...
Northeastern Chickasaw County in northeastern Mississippi...

At 1140 PM CDT...a strong thunderstorm producing winds at least 40
mph was located over Okolona, moving east at 50 mph.

People in southern Itawamba...Monroe...southern Lee and northeastern
Chickasaw Counties should monitor this storm closely.

LAT...LON 3383 8877 3418 8882 3431 8817 3385 8824
TIME...MOT...LOC 0440Z 254DEG 44KT 3401 8870

SGW
Local storm report, Apr 8, 2:28 AM CDT, 1 hour 26 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MEMPHIS TN
228 AM CDT THU APR 08 2021

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

0820 PM     TSTM WND DMG     1 NNW PARAGOULD         36.07N  90.52W
04/07/2021                   GREENE             AR   SOCIAL MEDIA

            A COUPLE OF TREES DOWN NEAR THE INTERSECTION OF
            REYNOLDS RD AND COUNTRY CLUB RD.

&&

MJ
Special weather statement, Apr 8, 2:41 AM CDT, 1 hour 13 minutes before
Special Weather Statement
National Weather Service Memphis TN
241 AM CDT Thu Apr 8 2021

MSZ022-023-080815-
Calhoun MS-Chickasaw MS-
241 AM CDT Thu Apr 8 2021

...A SIGNIFICANT WEATHER ADVISORY HAS BEEN ISSUED UNTIL 315 AM CDT
FOR...

Southeastern Calhoun County in northeastern Mississippi...
Central Chickasaw County in northeastern Mississippi...

At 241 AM CDT...a strong thunderstorm producing winds at least 40 mph
was located 8 miles north of Clarkson, or 14 miles west of
Montpelier, moving northeast at 50 mph.

Dangerous cloud to ground lightning is also expected with this
thunderstorm.

People in southeastern Calhoun and central Chickasaw Counties should
monitor this storm closely.

LAT...LON 3380 8930 3407 8883 3381 8881 3381 8893
      3375 8893 3375 8903 3374 8904 3374 8919
      3372 8919 3372 8926
TIME...MOT...LOC 0741Z 241DEG 44KT 3375 8920

MJ
Special weather statement, Apr 8, 2:59 AM CDT, 55 minutes before
Special Weather Statement
National Weather Service Memphis TN
259 AM CDT Thu Apr 8 2021

MSZ015-016-023-024-080830-
Pontotoc MS-Monroe MS-Lee MS-Chickasaw MS-
259 AM CDT Thu Apr 8 2021

...A SIGNIFICANT WEATHER ADVISORY HAS BEEN ISSUED UNTIL 330 AM CDT
FOR...

Southeastern Pontotoc County in northeastern Mississippi...
Northwestern Monroe County in northeastern Mississippi...
Southern Lee County in northeastern Mississippi...
Northeastern Chickasaw County in northeastern Mississippi...

At 258 AM CDT...a strong thunderstorm producing winds at least 40 mph
was located 7 miles south of Troy, or 7 miles northwest of Okolona,
moving northeast at 50 mph.

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

People in southeastern Pontotoc...northwestern Monroe...southern Lee
and northeastern Chickasaw Counties should monitor this storm
closely.

LAT...LON 3410 8903 3438 8854 3405 8855 3394 8900
TIME...MOT...LOC 0758Z 240DEG 42KT 3406 8887

MJ
Special weather statement, Apr 8, 3:31 AM CDT, 23 minutes before
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Special weather statement, Apr 8, 3:54 AM CDT, 0 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Apr 7, 7:23 PM CDTAreal Flood AdvisoryMEGDeSoto2 hr
Apr 7, 7:24 PM CDTSpecial Weather StatementMEGMarshall36 min
Apr 7, 7:59 PM CDTSpecial Weather StatementMEGCoahoma, Tunica31 min
Apr 7, 8:21 PM CDTAreal Flood AdvisoryMEGCoahoma, DeSoto, Panola, Quitman, Tate, Tunica91 min
Apr 7, 9:20 PM CDTSpecial Weather StatementMEGCalhoun, Pontotoc25 min
Apr 7, 9:47 PM CDTSpecial Weather StatementMEGPontotoc28 min
Apr 7, 10:39 PM CDTSpecial Weather StatementMEGCalhoun36 min
Apr 7, 11:07 PM CDTSpecial Weather StatementMEGChickasaw23 min
Apr 7, 11:20 PM CDTSevere Thunderstorm WarningMEGCalhoun, Chickasaw25 min
Apr 7, 11:40 PM CDTSpecial Weather StatementMEGMonroe35 min
Apr 8, 2:41 AM CDTSpecial Weather StatementMEGChickasaw34 min
Apr 8, 2:59 AM CDTSpecial Weather StatementMEGLee31 min
Apr 8, 3:17 AM CDTAreal Flood AdvisoryMEGCalhoun, Chickasaw, Lee, Monroe, Pontotoc3 hr
Apr 8, 3:31 AM CDTSpecial Weather StatementMEGMonroe29 min
Apr 8, 3:56 AM CDTTornado WarningMEGItawamba49 min
Apr 8, 11:49 AM CDTRiver Flood WarningMEGMonroe5 days
Apr 8, 11:57 AM CDTRiver Flood WarningMEGMonroe71 hr
Apr 8, 12:08 PM CDTRiver Flood WarningMEGLowndes, Monroe6 days
Apr 7, 7:21 PM CDTAreal Flood AdvisoryMEGLauderdale, Tipton2 hr
Apr 7, 8:03 PM CDTAreal Flood AdvisoryMEGDyer, Haywood, Lauderdale, Tipton108 min
Apr 7, 8:20 PM CDTSevere Thunderstorm WarningMEGClay, Greene25 min
Apr 7, 9:15 PM CDTSpecial Weather StatementMEGCraighead30 min
Apr 7, 8:09 PM CDTSpecial Weather StatementMEGDunklin51 min
Apr 7, 8:44 PM CDTSevere Thunderstorm WarningMEGDunklin, Pemiscot31 min

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.