Alert archive / Mississippi / Severe Thunderstorm Warnings in 2022

Severe Thunderstorm Warning 108, NWS Memphis, TN

April 17, 2022Calhoun County, Tallahatchie County, Yalobusha County, Mississippi

NWS Memphis, TN issued this severe thunderstorm warning at Apr 17, 2022, 8:16 AM CDT for Calhoun County, Tallahatchie County, Yalobusha County, Mississippi. It was in force for 44 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: Apr 17, 2022, 8:16 AM CDT (13:16 UTC)
Expired: Apr 17, 2022, 9:00 AM CDT
In force: 44 min
Issued by: NWS Memphis, TN
Area: Storm-based polygon
Hail: 1.0 in
Wind: 50.0 mph

Counties Calhoun County, MS, Tallahatchie County, MS, Yalobusha County, MS

The radar

The Columbus AFB radar (KGWX), 130 km from the middle of the area, began a volume at 13:15 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

Jackson, MS (KJAN), launched 12:00Z, 1.3 hours before the alert went out and 186 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: 257 J/kg
Mixed-layer CIN: -138 J/kg
Mixed-layer LCL: 492 m above ground
0-6 km bulk shear: 46 kt
0-1 km storm-relative helicity: 103 m²/s²
0-3 km storm-relative helicity: 160 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.4

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 Apr 17, 6:31 AM CDT, 1 hour 45 minutes earlier.

Area forecast discussion, Apr 17, 6:31 AM CDT, 1 hour 45 minutes before

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Hazardous weather outlook, Apr 17, 5:32 AM CDT, 2 hours 44 minutes before

Hazardous Weather Outlook
National Weather Service Memphis TN
532 AM CDT Sun Apr 17 2022

ARZ009-018-026>028-035-036-048-049-058-MOZ113-115-MSZ001>017-
020>024-TNZ001>004-019>022-048>055-088>092-181245-
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-
532 AM CDT Sun Apr 17 2022

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

.DAY ONE...Today and Tonight

A Marginal Risk of Excessive Rainfall exists for the Mid South
today. Localized heavy rain may lead to flash flooding.

A few strong storms will be possible this afternoon and evening.
Gusty winds and hail will be the main threats.

.DAYS TWO THROUGH SEVEN...Monday through Saturday

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated at this time.

In the hours before

Special weather statement, Apr 17, 5:25 AM CDT, 2 hours 51 minutes before

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Special weather statement, Apr 17, 5:56 AM CDT, 2 hours 20 minutes before

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Local storm report, Apr 17, 6:46 AM CDT, 1 hour 30 minutes before

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Local storm report, Apr 17, 7:04 AM CDT, 1 hour 12 minutes before

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Local storm report, Apr 17, 7:07 AM CDT, 1 hour 9 minutes before

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Special weather statement, Apr 17, 7:09 AM CDT, 1 hour 7 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
Apr 17, 5:25 AM CDT	Special Weather Statement	MEG	Pontotoc	35 min
Apr 17, 5:56 AM CDT	Special Weather Statement	MEG	Pontotoc	34 min
Apr 17, 7:09 AM CDT	Special Weather Statement	MEG	Quitman	36 min
Apr 17, 7:40 AM CDT	Severe Thunderstorm Warning	MEG	Quitman, Tallahatchie	35 min
Apr 17, 2:09 PM CDT	Special Weather Statement	MEG	Tunica	36 min
Apr 17, 2:24 PM CDT	Special Weather Statement	MEG	Calhoun, Chickasaw	36 min
Apr 17, 2:43 PM CDT	Special Weather Statement	MEG	Panola	32 min
Apr 17, 3:02 PM CDT	Special Weather Statement	MEG	Chickasaw, Monroe	28 min
Apr 17, 3:31 PM CDT	Special Weather Statement	MEG	Monroe	29 min
Apr 17, 4:14 PM CDT	Special Weather Statement	MEG	Pontotoc	31 min
Apr 17, 4:37 PM CDT	Areal Flood Advisory	MEG	Chickasaw, Monroe	3 hr
Apr 17, 5:48 PM CDT	Special Weather Statement	MEG	Greene	27 min

Nearby

Severe Thunderstorm Warnings in Mississippi, 2022 Every severe thunderstorm warning in 2022

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.