Alert archive / Mississippi / Severe Thunderstorm Warnings in 2020

Severe Thunderstorm Warning 22, NWS Memphis, TN

January 11, 20208 counties in Mississippi

NWS Memphis, TN issued this severe thunderstorm warning at Jan 11, 2020, 4:55 AM CST for 8 counties in Mississippi. 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 counties it named.

The facts

Issued: Jan 11, 2020, 4:55 AM CST (10:55 UTC)
Expired: Jan 11, 2020, 5:45 AM CST
In force: 50 min
Issued by: NWS Memphis, TN
Area: Storm-based polygon
Tornado: Possible
Hail: 0.75 in
Wind: 70.0 mph

Counties Calhoun County, MS, Lafayette County, MS, Marshall County, MS, Panola County, MS, Tallahatchie County, MS, Tate County, MS, Tunica County, MS, Yalobusha County, MS

The radar

The Memphis radar (KNQA), 112 km from the middle of the area, began a volume at 10:54 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jan 10, 11:58 PM CST	Tornado Watch	SPC	7 hr
Jan 11, 4:17 AM CST	Tornado Watch	SPC	6 hr

The nearest sounding before it

Little Rock, AR (KLZK), launched 00:00Z, 10.9 hours before the alert went out and 56 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: 346 J/kg
Mixed-layer CIN: -25 J/kg
Mixed-layer LCL: 532 m above ground
0-6 km bulk shear: 58 kt
0-1 km storm-relative helicity: 341 m²/s²
0-3 km storm-relative helicity: 385 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 3.2

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm warning 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 severe thunderstorm warning went out at Jan 11, 4:00 AM CST, 55 minutes earlier.

Area forecast discussion, Jan 11, 4:00 AM CST, 55 minutes before

Area Forecast Discussion
National Weather Service Memphis TN
400 AM CST Sat Jan 11 2020

.DISCUSSION...
A line of storms is moving through the Mid-South at this time and
will continue to move east this morning. Expect most of the severe
weather will be out of the area by early afternoon. We have had
reports of damage from this line already this morning. Expect that
it will be able to continue to produce some damaging winds as it
moves east. Also there is enough shear/helicity that storms are
capable of producing a tornado or two.

Gusty winds will continue after the front moves through as surface
low has good gradient winds till tonight. The air mass behind the
cold front will bring in some cold air, yet temperatures will be
near normal.

In general models are in good agreement with the systems for the
next week.

By the beginning of the week, the Mid-South returns to southwest
flow aloft and a weak warm front moves through the area which
allows the temperatures to warm up again. This warm front is ahead
of a couple of low pressure systems that will bring moisture back
into the area. Tuesday into Wednesday look to be better chances
for rain as a low moves just to the north of the area and another
cold front moves through on Wednesday.

The cold front on Wednesday at this time doesn't look as strong as
this mornings frontal system. However, the area will get another
round of rain. Precipitable waters for this next storm are only
around 1 inch. (Compared to the 1.5 or more from this morning and
today.)

The cold front on Wednesday will usher in another period of cold
air into the region. TLSJr

&&

.AVIATION...
06Z TAFs

LLWS will continue to be an issue over the next several hours.
Wind profiler continues to show 180/60kts from KNQA. Surface winds
will remain strong through late tomorrow morning.

A line of strong to severe thunderstorms is expected to push
through all sites over the next 12 hours or so. Approximate
timing has been outlined in TEMPO groups per each site. Expect
winds to reach near 50 kts as the line pushes through. Behind the
line, winds will remain strong and variable as a low pressure
system lifts northeast. Conds should improve to VFR at all sites
near or just after the end of this period.

AC3/TLSJr

&&

.MEG WATCHES/WARNINGS/ADVISORIES...
AR...Flash Flood Watch until noon CST today for Clay-Craighead-
     Crittenden-Cross-Greene-Lee AR-Mississippi-Phillips-
     Poinsett-St. Francis.

     Wind Advisory until noon CST today for Clay-Craighead-Crittenden-
     Cross-Greene-Lee AR-Mississippi-Phillips-Poinsett-St.
     Francis.

MO...Flash Flood Watch until noon CST today for Dunklin-Pemiscot.

     Wind Advisory until noon CST today for Dunklin-Pemiscot.

MS...Flash Flood Watch through this afternoon for Alcorn-Benton MS-
     Calhoun-Chickasaw-Coahoma-DeSoto-Itawamba-Lafayette-Lee MS-
     Marshall-Monroe-Panola-Pontotoc-Prentiss-Quitman-
     Tallahatchie-Tate-Tippah-Tishomingo-Tunica-Union-Yalobusha.

     Wind Advisory until 6 PM CST this evening for Alcorn-Benton MS-
     Calhoun-Chickasaw-Coahoma-DeSoto-Itawamba-Lafayette-Lee MS-
     Marshall-Monroe-Panola-Pontotoc-Prentiss-Quitman-
     Tallahatchie-Tate-Tippah-Tishomingo-Tunica-Union-Yalobusha.

TN...Flash Flood Watch through this afternoon for Benton TN-Carroll-
     Chester-Crockett-Decatur-Dyer-Fayette-Gibson-Hardeman-
     Hardin-Haywood-Henderson-Henry-Lake-Lauderdale-Madison-
     McNairy-Obion-Shelby-Tipton-Weakley.

     Wind Advisory until 6 PM CST this evening for Benton TN-Carroll-
     Chester-Crockett-Decatur-Dyer-Fayette-Gibson-Hardeman-
     Hardin-Haywood-Henderson-Henry-Lake-Lauderdale-Madison-
     McNairy-Obion-Shelby-Tipton-Weakley.

&&

Hazardous weather outlook, Jan 11, 4:29 AM CST, 26 minutes before

Hazardous Weather Outlook
National Weather Service Memphis TN
429 AM CST Sat Jan 11 2020

ARZ009-018-026>028-035-036-048-049-058-MOZ113-115-MSZ001>017-
020>024-TNZ001>004-019>022-048>055-088>092-121230-
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-
429 AM CST Sat Jan 11 2020

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

.DAY ONE...Today and Tonight

Severe thunderstorms are possible across the Mid South today with
the threat gradually shifting east of the Mississippi River as a
strong cold front moves through the Lower Mississippi Valley.
Damaging winds is the primary severe threat along with a potential
for large hail and a few tornadoes.

A Flash Flood Watch is in effect as heavy rainfall is expected
across the area. Rainfall amounts will average between 2-3 inches
with higher amounts.

In addition, a Wind Advisory remains in effect across the Mid-
South today.

.DAYS TWO THROUGH SEVEN...Sunday through Friday

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

Please relay any severe weather reports to the National Weather
Service in Memphis.

In the hours before

Local storm report, Jan 11, 2:26 AM CST, 2 hours 29 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MEMPHIS TN
226 AM CST SAT JAN 11 2020

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

0219 AM     TSTM WND DMG     1 E WHEATLEY            34.92N  91.09W
01/11/2020                   ST. FRANCIS        AR   LAW ENFORCEMENT

            SEMI BLOWN OVER ON INTERSTATE 40 NEAR MILE MARKER 222
            NEAR WHEATLEY. REPORT RELAYED THROUGH AMATEUR RADIO.

&&

MJ

Local storm report, Jan 11, 3:13 AM CST, 1 hour 42 minutes before

PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE MEMPHIS TN
313 AM CST SAT JAN 11 2020

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

0219 AM     TSTM WND DMG     1 E WHEATLEY            34.92N  91.09W
01/11/2020                   ST. FRANCIS        AR   COUNTY OFFICIAL

            7 TRACTOR TRAILORS BLOWN OVER ON INTERSTATE 40 BETWEEN
            MILE MARKERS 222 AND 225 NEAR WHEATLEY.

&&

CORRECTED REMARKS...SOURCE

MJ

Local storm report, Jan 11, 3:28 AM CST, 1 hour 27 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MEMPHIS TN
328 AM CST SAT JAN 11 2020

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

0230 AM     TSTM WND DMG     1 SE WYNNE              35.22N  90.78W
01/11/2020                   CROSS              AR   BROADCAST MEDIA

            WIND DAMAGE SE OF WYNNE, AR. WINDOWS BLOWN OUT.

&&

MGW

Local storm report, Jan 11, 3:58 AM CST, 57 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MEMPHIS TN
358 AM CST SAT JAN 11 2020

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

0354 AM     FLASH FLOOD      JONESBORO               35.82N  90.69W
01/11/2020                   CRAIGHEAD          AR   EMERGENCY MNGR

            SOME ROADS ARE IMPASSABLE. TWO FEET OF WATER OVER
            RICHARDSON DRIVE IN EAST JONESBORO.

&&

MJ

Local storm report, Jan 11, 4:44 AM CST, 11 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MEMPHIS TN
444 AM CST SAT JAN 11 2020

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

0437 AM     TSTM WND GST     TUNICA                  34.69N  90.38W
01/11/2020  M79 MPH          TUNICA             MS   ASOS

            AIRPORT OBSERVATION OF APPROXIMATELY 79MPH WIND GUST AT
            TUNICA. THE COUNTY CONFIRMED STRUCTURAL DAMAGE JUST
            SOUTH OF TUNICA. A SEMI-TRUCK WAS ALSO BLOWN OVER.

&&

MGW

Special weather statement, Jan 11, 4:47 AM CST, 8 minutes before

Special Weather Statement
National Weather Service Memphis TN
447 AM CST Sat Jan 11 2020

TNZ002-003-019-020-048>051-111115-
Weakley TN-Tipton TN-Crockett TN-Lauderdale TN-Obion TN-Dyer TN-
Gibson TN-Haywood TN-
447 AM CST Sat Jan 11 2020

...A SIGNIFICANT WEATHER ADVISORY HAS BEEN ISSUED UNTIL 515 AM CST
FOR...

Western Weakley County in western Tennessee...
Tipton County in western Tennessee...
Crockett County in western Tennessee...
Lauderdale County in western Tennessee...
Obion County in western Tennessee...
Dyer County in western Tennessee...
Western Gibson County in western Tennessee...
Haywood County in western Tennessee...

At 447 AM CST...strong thunderstorms producing winds at least 40 mph
was located along a line extending from near South Fulton to near
Dixonville. This line was moving east at 35 mph.

Very heavy rain is also possible with this thunderstorm.

People in western Weakley...Tipton...Crockett...Lauderdale...Obion...
Dyer...western Gibson and Haywood Counties should monitor this storm
closely.

LAT...LON 3540 8936 3539 8995 3651 8927 3650 8862
TIME...MOT...LOC 1047Z 268DEG 30KT 3650 8894 3540 8970

MJ

The office that day

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

Issued	Product	Office	Counties	Lasted
Jan 10, 9:25 PM CST	River Flood Advisory	MEG	Coahoma, Tunica	18 days
Jan 11, 1:47 AM CST	Severe Thunderstorm Warning	MEG	Tunica	43 min
Jan 11, 2:23 AM CST	Severe Thunderstorm Warning	MEG	Tunica	52 min
Jan 11, 3:16 AM CST	Severe Thunderstorm Warning	MEG	Tunica	44 min
Jan 11, 3:32 AM CST	Severe Thunderstorm Warning	MEG	Coahoma, Quitman	43 min
Jan 11, 3:45 AM CST	Severe Thunderstorm Warning	MEG	DeSoto, Tunica	45 min
Jan 11, 4:04 AM CST	Severe Thunderstorm Warning	MEG	Coahoma, Quitman, Tunica	41 min
Jan 11, 4:09 AM CST	Severe Thunderstorm Warning	MEG	DeSoto	51 min
Jan 11, 4:16 AM CST	Severe Thunderstorm Warning	MEG	DeSoto, Tate, Tunica	44 min
Jan 11, 4:22 AM CST	Severe Thunderstorm Warning	MEG	Coahoma, Panola, Quitman, Tallahatchie, Yalobusha	38 min
Jan 11, 4:29 AM CST	Severe Thunderstorm Warning	MEG	Coahoma, DeSoto, Panola, Quitman, Tallahatchie, Tate and 1 more	46 min
Jan 11, 4:40 AM CST	Severe Thunderstorm Warning	MEG	DeSoto, Marshall, Tate, Tunica	50 min
Jan 11, 4:45 AM CST	Tornado Warning	MEG	DeSoto, Tate	20 min
Jan 11, 4:55 AM CST	Severe Thunderstorm Warning	MEG	DeSoto	50 min
Jan 11, 5:01 AM CST	Tornado Warning	MEG	DeSoto, Marshall	29 min
Jan 11, 5:13 AM CST	Tornado Warning	MEG	Benton, Lafayette, Marshall, Panola, Tate	27 min
Jan 11, 5:19 AM CST	Severe Thunderstorm Warning	MEG	Calhoun, Lafayette, Marshall, Panola, Pontotoc, Union and 1 more	41 min
Jan 11, 5:21 AM CST	Severe Thunderstorm Warning	MEG	Benton, Marshall	39 min
Jan 11, 5:34 AM CST	Severe Thunderstorm Warning	MEG	Lafayette, Panola, Quitman, Tate	5 min
Jan 11, 5:37 AM CST	Severe Thunderstorm Warning	MEG	Benton, Marshall, Tippah, Union	38 min
Jan 11, 5:52 AM CST	Areal Flood Advisory	MEG	Lafayette	113 min
Jan 11, 5:57 AM CST	Severe Thunderstorm Warning	MEG	Benton, Calhoun, Chickasaw, Lafayette, Lee, Marshall and 4 more	48 min
Jan 11, 6:09 AM CST	Severe Thunderstorm Warning	MEG	Alcorn, Benton, Prentiss, Tippah	51 min
Jan 11, 6:37 AM CST	Severe Thunderstorm Warning	MEG	Chickasaw, Itawamba, Lee, Monroe, Pontotoc, Prentiss and 2 more	38 min
Jan 11, 6:56 AM CST	Tornado Warning	MEG	Lee, Prentiss, Tishomingo	22 min
Jan 11, 6:59 AM CST	Severe Thunderstorm Warning	MEG	Alcorn, Prentiss, Tishomingo	46 min
Jan 11, 7:05 AM CST	Tornado Warning	MEG	Alcorn, Prentiss, Tishomingo	40 min
Jan 11, 7:08 AM CST	Severe Thunderstorm Warning	MEG	Chickasaw, Itawamba, Lee, Monroe, Prentiss, Tishomingo	52 min
Jan 11, 7:40 AM CST	Severe Thunderstorm Warning	MEG	Itawamba, Lee, Monroe	50 min
Jan 11, 7:43 AM CST	Areal Flood Advisory	MEG	Benton, Lafayette, Marshall, Panola, Tallahatchie, Yalobusha	2 hr
Jan 11, 9:01 AM CST	Special Weather Statement	MEG	Monroe	44 min
Jan 11, 9:17 AM CST	Flash Flood Warning	MEG	Calhoun, Chickasaw, Itawamba, Lee, Monroe, Pontotoc and 1 more	4 hr
Jan 11, 9:47 AM CST	Special Weather Statement	MEG	Monroe	28 min
Jan 11, 10:03 AM CST	Severe Thunderstorm Warning	MEG	Monroe	42 min
Jan 11, 11:47 AM CST	River Flood Advisory	MEG	Itawamba	3 hr
Jan 11, 11:51 AM CST	River Flood Warning	MEG	Tate, Tunica	14 hr
Jan 11, 11:51 AM CST	River Flood Warning	MEG	Lafayette, Marshall, Union	23 hr
Jan 11, 2:26 AM CST	Severe Thunderstorm Warning	MEG	Dyer, Lake, Lauderdale, Obion	49 min
Jan 11, 3:06 AM CST	Severe Thunderstorm Warning	MEG	Shelby	39 min
Jan 11, 3:16 AM CST	Severe Thunderstorm Warning	MEG	Crockett, Dyer, Lake, Lauderdale	44 min
Jan 11, 3:23 AM CST	Severe Thunderstorm Warning	MEG	Haywood, Lauderdale, Tipton	52 min
Jan 11, 3:36 AM CST	Severe Thunderstorm Warning	MEG	Shelby, Tipton	39 min
Jan 11, 3:54 AM CST	Severe Thunderstorm Warning	MEG	Crockett, Dyer, Gibson, Lake, Lauderdale, Obion	51 min
Jan 11, 4:47 AM CST	Special Weather Statement	MEG	Crockett, Dyer, Haywood, Lauderdale, Obion, Tipton	28 min
Jan 11, 5:17 AM CST	Special Weather Statement	MEG	Crockett, Gibson, Haywood, Weakley	43 min
Jan 11, 5:29 AM CST	Special Weather Statement	MEG	Fayette	31 min
Jan 11, 5:36 AM CST	Tornado Warning	MEG	Fayette, Hardeman	24 min
Jan 11, 5:59 AM CST	Special Weather Statement	MEG	Carroll, Gibson, Henry, Weakley	46 min
Jan 11, 6:00 AM CST	Special Weather Statement	MEG	Chester, Hardeman, Henderson, McNairy, Madison	45 min
Jan 11, 6:19 AM CST	Severe Thunderstorm Warning	MEG	Chester, Hardeman, Hardin, McNairy	41 min
Jan 11, 6:38 AM CST	Severe Thunderstorm Warning	MEG	Benton, Carroll, Henry	37 min
Jan 11, 6:41 AM CST	Severe Thunderstorm Warning	MEG	Benton, Chester, Decatur, Hardin, Henderson, McNairy	47 min
Jan 11, 7:37 AM CST	Severe Thunderstorm Warning	MEG	Hardin	23 min
Jan 11, 9:39 AM CST	River Flood Warning	MEG	Madison	25 hr
Jan 11, 9:39 AM CST	River Flood Warning	MEG	Fayette, Shelby	29 hr
Jan 11, 9:39 AM CST	River Flood Warning	MEG	Shelby	10 hr
Jan 11, 9:39 AM CST	River Flood Warning	MEG	Fayette, Shelby	10 hr
Jan 11, 12:00 AM CST	Severe Thunderstorm Warning	MEG	Clay, Craighead, Greene	60 min
Jan 11, 12:47 AM CST	Severe Thunderstorm Warning	MEG	Clay, Craighead, Greene, Mississippi	43 min
Jan 11, 1:27 AM CST	Special Weather Statement	MEG	Mississippi	48 min
Jan 11, 1:43 AM CST	Areal Flood Advisory	MEG	Craighead, Greene	2 hr
Jan 11, 1:52 AM CST	Severe Thunderstorm Warning	MEG	Clay, Craighead, Mississippi	38 min
Jan 11, 2:22 AM CST	Flash Flood Warning	MEG	Craighead	3 hr
Jan 11, 3:46 AM CST	Areal Flood Advisory	MEG	Crittenden, Cross, Poinsett, St. Francis	119 min

Nearby

Severe Thunderstorm Warnings in Mississippi, 2020 Every severe thunderstorm warning in 2020

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.