Alert archive / Mississippi / Severe Thunderstorm Warnings in 2020

Severe Thunderstorm Warning 211, NWS Memphis, TN

August 28, 2020Alcorn County, Benton County, Tippah County, Mississippi; Fayette County, Hardeman County, Tennessee

NWS Memphis, TN issued this severe thunderstorm warning at Aug 28, 2020, 5:29 PM CDT for Alcorn County, Benton County, Tippah County, Mississippi; Fayette County, Hardeman County, Tennessee. It was in force for 46 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, 5:29 PM CDT (22:29 UTC)
Expired: Aug 28, 2020, 6:15 PM CDT
In force: 46 min
Issued by: NWS Memphis, TN
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Alcorn County, MS, Benton County, MS, Tippah County, MS, Fayette County, TN, Hardeman County, TN

The radar

The Memphis radar (KNQA), 88 km from the middle of the area, began a volume at 22:30 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, 10.5 hours before the alert went out and 87 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: 177 J/kg
Mixed-layer CIN: -11 J/kg
Mixed-layer LCL: 650 m above ground
0-6 km bulk shear: 27 kt
0-1 km storm-relative helicity: 297 m²/s²
0-3 km storm-relative helicity: 421 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

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, 2 hours 12 minutes earlier.

Area forecast discussion, Aug 28, 3:17 PM CDT, 2 hours 12 minutes before

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Hazardous weather outlook, Aug 28, 2:44 PM CDT, 2 hours 45 minutes before

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In the hours before

Special weather statement, Aug 28, 4:53 PM CDT, 36 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 27, 7:00 PM CDT	Tornado Warning	MEG	Tunica	30 min
Aug 27, 7:58 PM CDT	Tornado Warning	MEG	Lafayette, Panola, Tate	32 min
Aug 27, 8:27 PM CDT	Tornado Warning	MEG	DeSoto, Marshall, Panola, Tate	33 min
Aug 27, 8:53 PM CDT	Flash Flood Warning	MEG	DeSoto, Panola, Tate	3 hr
Aug 28, 6:18 AM CDT	Severe Thunderstorm Warning	MEG	Lafayette	27 min
Aug 28, 6:21 AM CDT	Tornado Warning	MEG	Lafayette	24 min
Aug 28, 6:37 AM CDT	Tornado Warning	MEG	Benton, Lafayette, Marshall, Tippah, Union	25 min
Aug 28, 7:21 AM CDT	Tornado Warning	MEG	Benton, Tippah	16 min
Aug 28, 8:17 AM CDT	River Flood Warning	MEG	Monroe	55 hr
Aug 28, 8:17 AM CDT	River Flood Warning	MEG	Monroe	52 hr
Aug 28, 9:51 AM CDT	Tornado Warning	MEG	Tippah, Union	24 min
Aug 28, 10:14 AM CDT	Tornado Warning	MEG	Prentiss, Tippah, Union	8 min
Aug 28, 10:36 AM CDT	Tornado Warning	MEG	Tishomingo	9 min
Aug 28, 12:29 PM CDT	Tornado Warning	MEG	Benton, Marshall, Tippah	3 min
Aug 28, 2:57 PM CDT	Severe Thunderstorm Warning	MEG	Calhoun, Chickasaw	18 min
Aug 28, 3:04 PM CDT	Areal Flood Advisory	MEG	Alcorn	3 hr
Aug 28, 3:11 PM CDT	Severe Thunderstorm Warning	MEG	Calhoun, Chickasaw, Pontotoc	19 min
Aug 28, 3:40 PM CDT	Severe Thunderstorm Warning	MEG	Itawamba, Monroe	20 min
Aug 28, 4:13 PM CDT	Severe Thunderstorm Warning	MEG	Monroe	47 min
Aug 28, 4:45 PM CDT	Heat Advisory	MEG	Coahoma, DeSoto, Lafayette, Marshall, Panola, Quitman and 4 more	26 hr
Aug 28, 4:53 PM CDT	Special Weather Statement	MEG	Benton, Marshall, Tippah	52 min
Aug 28, 6:06 PM CDT	Special Weather Statement	MEG	Alcorn	39 min
Aug 27, 7:02 PM CDT	Severe Thunderstorm Warning	MEG	Carroll, Henry, Weakley	43 min
Aug 28, 5:55 AM CDT	Tornado Warning	MEG	Crockett, Dyer, Haywood	10 min
Aug 28, 8:03 AM CDT	Tornado Warning	MEG	Chester, Hardeman, McNairy	6 min
Aug 28, 10:52 AM CDT	Tornado Warning	MEG	Hardin	23 min
Aug 28, 4:39 PM CDT	Areal Flood Advisory	MEG	Shelby	3 hr
Aug 27, 7:00 PM CDT	Flash Flood Warning	MEG	Cross, Lee, St. Francis	3 hr
Aug 27, 7:09 PM CDT	Tornado Warning	MEG	Cross, Poinsett	36 min
Aug 27, 7:52 PM CDT	Tornado Warning	MEG	Cross, Poinsett	38 min
Aug 27, 7:57 PM CDT	Tornado Warning	MEG	Craighead, Poinsett	35 min
Aug 27, 8:12 PM CDT	Tornado Warning	MEG	Craighead, Poinsett	48 min
Aug 27, 8:47 PM CDT	Tornado Warning	MEG	Craighead, Mississippi, Poinsett	43 min
Aug 27, 8:52 PM CDT	Tornado Warning	MEG	Craighead, Greene	23 min
Aug 27, 9:10 PM CDT	Flash Flood Warning	MEG	Craighead, Cross, Poinsett	3 hr
Aug 27, 9:12 PM CDT	Tornado Warning	MEG	Craighead, Greene	48 min
Aug 27, 9:49 PM CDT	Tornado Warning	MEG	Clay, Greene	23 min
Aug 27, 10:29 PM CDT	Tornado Warning	MEG	Clay, Mississippi	31 min
Aug 27, 10:59 PM CDT	Tornado Warning	MEG	Clay	23 min
Aug 28, 9:36 AM CDT	Areal Flood Advisory	MEG	Cross	3 hr

Nearby

Severe Thunderstorm Warnings in Mississippi, 2020 Severe Thunderstorm Warnings in Tennessee, 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.