Alert archive / Mississippi / Severe Thunderstorm Warnings in 2020

Severe Thunderstorm Warning 212, NWS Memphis, TN

August 28, 20205 counties in Mississippi

NWS Memphis, TN issued this severe thunderstorm warning at Aug 28, 2020, 7:13 PM CDT for 5 counties in Mississippi. It was in force for 47 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: Aug 28, 2020, 7:13 PM CDT (00:13 UTC)
Expired: Aug 28, 2020, 8:00 PM CDT
In force: 47 min
Issued by: NWS Memphis, TN
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Benton County, MS, Lee County, MS, Prentiss County, MS, Tippah County, MS, Union County, MS

The radar

The Columbus AFB radar (KGWX), 92 km from the middle of the area, began a volume at 00:15 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, 0.2 hours before the alert went out and 103 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: 764 J/kg
Mixed-layer CIN: -70 J/kg
Mixed-layer LCL: 1610 m above ground
0-6 km bulk shear: 28 kt
0-1 km storm-relative helicity: 84 m²/s²
0-3 km storm-relative helicity: 131 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 3.1

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 Aug 28, 3:17 PM CDT, 3 hours 56 minutes earlier.

Area forecast discussion, Aug 28, 3:17 PM CDT, 3 hours 56 minutes before

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Hazardous weather outlook, Aug 28, 2:44 PM CDT, 4 hours 29 minutes before

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In the hours before

Special weather statement, Aug 28, 4:53 PM CDT, 2 hours 20 minutes before

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Local storm report, Aug 28, 6:06 PM CDT, 1 hour 7 minutes before

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Special weather statement, Aug 28, 6:06 PM CDT, 1 hour 7 minutes before

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Local storm report, Aug 28, 6:09 PM CDT, 1 hour 4 minutes before

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Local storm report, Aug 28, 6:16 PM CDT, 57 minutes before

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Special weather statement, Aug 28, 7:04 PM CDT, 9 minutes before

Special Weather Statement
National Weather Service Memphis TN
704 PM CDT Fri Aug 28 2020

MSZ003-004-014-290045-
Tippah MS-Union MS-Benton MS-
704 PM CDT Fri Aug 28 2020

...A SIGNIFICANT WEATHER ADVISORY HAS BEEN ISSUED UNTIL 745 PM CDT
FOR...

Southern Tippah County in northeastern Mississippi...
Union County in northeastern Mississippi...
Southeastern Benton County in northeastern Mississippi...

At 703 PM CDT...a strong thunderstorm producing winds at least 40 mph
was located 8 miles east of Bethlehem, or 12 miles northwest of New
Albany, moving east at 40 mph.

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

People in southern Tippah...Union and southeastern Benton Counties
should monitor this storm closely.

LAT...LON 3460 8872 3460 8873 3457 8873 3450 8877
      3449 8879 3445 8879 3439 8882 3451 8925
      3458 8925 3458 8930 3471 8926 3466 8872
TIME...MOT...LOC 0003Z 281DEG 36KT 3461 8919

SJM

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 28, 7:04 PM CDT	Special Weather Statement	MEG	Union	41 min
Aug 28, 7:24 PM CDT	Special Weather Statement	MEG	Alcorn, Tishomingo	66 min
Aug 28, 7:39 PM CDT	Areal Flood Advisory	MEG	Alcorn, Benton, Prentiss, Tippah, Tishomingo	4 hr
Aug 28, 8:31 PM CDT	Flash Flood Warning	MEG	Prentiss, Tishomingo	5 hr
Aug 28, 8:47 PM CDT	Areal Flood Advisory	MEG	Itawamba, Lee, Union	116 min
Aug 28, 9:10 PM CDT	Special Weather Statement	MEG	Itawamba	35 min
Aug 28, 9:38 PM CDT	Special Weather Statement	MEG	Lee, Union	37 min
Aug 28, 9:55 PM CDT	Areal Flood Advisory	MEG	Benton, Prentiss, Tippah, Union	48 min
Aug 28, 10:43 PM CDT	Flash Flood Warning	MEG	Benton, Prentiss, Tippah, Union	3 hr
Aug 28, 10:43 PM CDT	Flash Flood Warning	MEG	Itawamba, Lee, Union	3 hr
Aug 28, 10:53 PM CDT	Areal Flood Advisory	MEG	Itawamba, Lee, Pontotoc	39 min
Aug 28, 11:16 PM CDT	Areal Flood Advisory	MEG	Lafayette, Marshall	104 min
Aug 28, 11:32 PM CDT	Flash Flood Warning	MEG	Itawamba, Lee, Pontotoc	4 hr
Aug 28, 11:34 PM CDT	Areal Flood Advisory	MEG	Calhoun, Chickasaw, Itawamba, Lee, Monroe, Pontotoc	3 hr
Aug 29, 12:03 AM CDT	Flash Flood Warning	MEG	Calhoun, Chickasaw, Itawamba, Lee, Monroe, Pontotoc	3 hr
Aug 29, 1:23 AM CDT	Areal Flood Advisory	MEG	Lafayette	3 hr
Aug 29, 4:10 PM CDT	Special Weather Statement	MEG	Obion	35 min
Aug 29, 3:07 PM CDT	Severe Thunderstorm Warning	MEG	Craighead, Greene, Poinsett	38 min
Aug 29, 4:48 PM CDT	Severe Thunderstorm Warning	MEG	Lee, St. Francis	42 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.