Alert archive / Tennessee / Special Weather Statements in 2021

Special Weather Statement, NWS Memphis, TN

June 12, 2021Henry County, Tennessee

NWS Memphis, TN issued this special weather statement at Jun 12, 2021, 5:14 PM CDT for Henry County, Tennessee. It was in force for 31 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: Jun 12, 2021, 5:14 PM CDT (22:14 UTC)
Expired: Jun 12, 2021, 5:45 PM CDT
In force: 31 min
Issued by: NWS Memphis, TN

County Henry County, TN

The radar

The Paducah radar (KPAH), 93 km from the middle of the area, began a volume at 22:14 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

Nashville Metro, TN (KBNA), launched 12:00Z, 10.2 hours before the alert went out and 156 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: 1463 J/kg
Mixed-layer CIN: -47 J/kg
Mixed-layer LCL: 1034 m above ground
0-6 km bulk shear: 24 kt
0-1 km storm-relative helicity: 97 m²/s²
0-3 km storm-relative helicity: 131 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.5

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 Jun 12, 3:25 PM CDT, 1 hour 49 minutes earlier.

Area forecast discussion, Jun 12, 3:25 PM CDT, 1 hour 49 minutes before

Area Forecast Discussion
National Weather Service Memphis TN
325 PM CDT Sat Jun 12 2021

.DISCUSSION...

A few thunderstorms have popped up across the Mid-South this hot
afternoon. Instability is robust with moderate shear values. PWATs
are still high at 1.9 inches. With that being said storms this
afternoon and early evening may be briefly severe with damaging
wind gusts. Training of storms could be an issue later this
evening so heavy rain/flooding may be possible. Coverage should be
minimal through this evening so confidence is low on location of
shower development. Additionally, heat indices have inched
towards 99 to 103. Showers and storms will slowly fizzle late
tonight and patchy fog is expected again tonight.

Sunday may be a little cooler than today, but still hot with heat
indices nearing 100. Showers will likely pop up again tomorrow,
mainly south of the I-40 corridor.Again, a couple could be strong
to briefly severe through early evening Sunday. Wind will be the
main threat.

By Monday, northwest flow will increase as an upper ridge over the
Plains moves towards the four corners. By Wednesday the ridge
will settle to our west with a trough to our east. This set up
will being less humid air will settle over the area with
temperatures in the mid 80s. A weak cold front will push through
the area Friday night into Saturday. Unfortunately, heat and
humidity will start creeping up again along with a chance for
scattered thunderstorms.

SWB

&&

.AVIATION...
/18z TAFs/

A diurnal Cu field around 3500-4500 ft AGL will continue to
develop this afternoon with widely scattered thunderstorms
developing by 20z. Confidence in convection occurring on station
at any forecast terminal is low, but VCTS will be carried through
sunset or just after. While a stray storm is possible overnight,
most of the area will remain dry. Fog is expected late, mainly
affecting TUP/MKL but VFR conditions will prevail after 13z with
scattered afternoon storms developing along/south of I-40. Winds
will remain light through tonight, becoming north at 5-8 kts on
Sunday.

MJ

&&

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

Hazardous weather outlook, Jun 12, 3:27 AM CDT, 13 hours 47 minutes before

Hazardous Weather Outlook
National Weather Service Memphis TN
327 AM CDT Sat Jun 12 2021

ARZ009-018-026>028-035-036-048-049-058-MOZ113-115-MSZ001>017-
020>024-TNZ001>004-019>022-048>055-088>092-131030-
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-
327 AM CDT Sat Jun 12 2021

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

.DAY ONE...Today and Tonight

There is a Marginal Risk for severe storms over the Midsouth
through early evening. Primary risks include damaging winds and
localized flash flooding.

Outside of areas affected by thunderstorms, afternoon heat indices
will range 100 to 105 degrees.

.DAYS TWO THROUGH SEVEN...Sunday through Friday

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated at this time.

PWB

In the hours before

Special weather statement, Jun 12, 2:23 PM CDT, 2 hours 51 minutes before

Special Weather Statement
National Weather Service Memphis TN
223 PM CDT Sat Jun 12 2021

TNZ004-022-122000-
Benton TN-Henry TN-
223 PM CDT Sat Jun 12 2021

...A SIGNIFICANT WEATHER ADVISORY HAS BEEN ISSUED UNTIL 300 PM CDT
FOR...

Northern Benton County in western Tennessee...
Southeastern Henry County in western Tennessee...

At 223 PM CDT...a strong thunderstorm producing pea size hail or
larger and winds at least 40 mph was located over Springville, or 10
miles east of Paris, moving southeast at 20 mph.

People in northern Benton and southeastern Henry Counties should
monitor this storm closely.

LAT...LON 3613 8792 3608 8795 3606 8821 3631 8821
      3635 8808 3624 8795 3622 8795 3618 8793
      3617 8792
TIME...MOT...LOC 1923Z 325DEG 18KT 3624 8813

MJ

Local storm report, Jun 12, 3:02 PM CDT, 2 hours 12 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MEMPHIS TN
302 PM CDT SAT JUN 12 2021

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

0325 PM     TSTM WND DMG     FAIRVIEW                34.37N  88.32W
06/08/2021                   ITAWAMBA           MS   BROADCAST MEDIA

            TREE DOWN ACROSS HIGHWAY 25 IN FRONT OF FAIRVIEW
            SCHOOL.

&&

MJ

Special weather statement, Jun 12, 5:14 PM CDT, 0 minutes before

Special Weather Statement
National Weather Service Memphis TN
514 PM CDT Sat Jun 12 2021

TNZ004-021-022-122245-
Carroll TN-Benton TN-Henry TN-
514 PM CDT Sat Jun 12 2021

...A SIGNIFICANT WEATHER ADVISORY HAS BEEN ISSUED UNTIL 545 PM CDT
FOR...

Northeastern Carroll County in western Tennessee...
West central Benton County in western Tennessee...
Henry County in western Tennessee...

At 513 PM CDT...a strong thunderstorm producing pea size hail or
larger and winds at least 40 mph was located over Paris, moving south
at 15 mph.

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

People in northeastern Carroll...west central Benton and Henry
Counties should monitor this storm closely.

LAT...LON 3650 8839 3649 8815 3602 8818 3608 8850
TIME...MOT...LOC 2213Z 008DEG 15KT 3628 8830

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 12, 2:23 PM CDT	Special Weather Statement	MEG	Benton	37 min
Jun 12, 5:27 PM CDT	Severe Thunderstorm Warning	MEG	Carroll, Henry	29 min
Jun 12, 5:44 PM CDT	Areal Flood Advisory	MEG	Henry	2 hr
Jun 12, 6:22 PM CDT	Special Weather Statement	MEG	Mississippi	23 min
Jun 12, 6:28 PM CDT	Severe Thunderstorm Warning	MEG	Craighead, Mississippi	32 min
Jun 12, 6:59 PM CDT	Severe Thunderstorm Warning	MEG	Mississippi	46 min

Nearby

Special Weather Statements in Tennessee, 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.