Alert archive / Mississippi / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 207, NWS Memphis, TN

June 22, 2018Chickasaw County, Monroe County, Mississippi

NWS Memphis, TN issued this severe thunderstorm warning at Jun 22, 2018, 12:28 AM CDT for Chickasaw County, Monroe County, 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
Jun 22, 2018, 12:28 AM CDT (05:28 UTC)
Expired
Jun 22, 2018, 1:15 AM CDT
In force
47 min
Issued by
NWS Memphis, TN
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Chickasaw County, MS, Monroe County, MS

The radar

The Columbus AFB radar (KGWX), 36 km from the middle of the area, began a volume at 05:31 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 (KBYH), launched 00:00Z, 5.5 hours before the alert went out and 153 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-pSkew-T log-p diagram, Little Rock, AR at 00:00Z on 2018-06-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 293 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Little Rock, AR at 00:00Z on 2018-06-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 91 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
293 J/kg
Mixed-layer CIN
-97 J/kg
Mixed-layer LCL
2167 m above ground
0-6 km bulk shear
51 kt
0-1 km storm-relative helicity
91 m²/s²
0-3 km storm-relative helicity
218 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.9

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 Jun 21, 11:35 PM CDT, 53 minutes earlier.

Area forecast discussion, Jun 21, 11:35 PM CDT, 53 minutes before
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Hazardous weather outlook, Jun 21, 9:13 PM CDT, 3 hours 15 minutes before
Hazardous Weather Outlook
National Weather Service Memphis TN
913 PM CDT Thu Jun 21 2018

ARZ008-009-017-018-026>028-035-036-048-049-058-MOZ113-115-
MSZ001>017-020>024-TNZ001>004-019>022-048>055-088>092-230415-
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-Lawrence-
Lee AR-Lee MS-Madison-Marshall-McNairy-Mississippi-Monroe-Obion-
Panola-Pemiscot-Phillips-Poinsett-Pontotoc-Prentiss-Quitman-
Randolph-Shelby-St. Francis-Tallahatchie-Tate-Tippah-Tipton-
Tishomingo-Tunica-Union-Weakley-Yalobusha-
913 PM CDT Thu Jun 21 2018

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

.DAY ONE...Tonight

A few strong to severe storms are possible across North Mississippi.
Damaging winds will be the main threat. Localized heavy rain will
also be possible.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday

A few strong to severe storms will be possible again Friday
into Sunday with passing disturbances. Damaging winds...large hail
and heavy rainfall will be the primary threats.

Triple digit heat indices are anticipated to return to the
Midsouth next week. Heat advisories may be needed.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be possible through the weekend.

SJM

In the hours before

Special weather statement, Jun 21, 11:15 PM CDT, 1 hour 13 minutes before
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Special weather statement, Jun 21, 11:26 PM CDT, 1 hour 2 minutes before
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Special weather statement, Jun 21, 11:54 PM CDT, 34 minutes before
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Local storm report, Jun 21, 11:57 PM CDT, 31 minutes before
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Special weather statement, Jun 22, 12:04 AM CDT, 24 minutes before
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Local storm report, Jun 22, 12:12 AM CDT, 16 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jun 21, 7:29 PM CDTSpecial Weather StatementMEGHardin31 min
Jun 21, 7:27 PM CDTSpecial Weather StatementMEGAlcorn, Prentiss, Tishomingo63 min
Jun 21, 7:41 PM CDTSpecial Weather StatementMEGMarshall49 min
Jun 21, 8:10 PM CDTSevere Thunderstorm WarningMEGBenton, Marshall35 min
Jun 21, 8:26 PM CDTSpecial Weather StatementMEGTippah34 min
Jun 21, 8:37 PM CDTSevere Thunderstorm WarningMEGBenton, Marshall, Tippah, Union23 min
Jun 21, 8:49 PM CDTSpecial Weather StatementMEGPrentiss26 min
Jun 21, 9:00 PM CDTSpecial Weather StatementMEGPrentiss, Union45 min
Jun 21, 9:26 PM CDTSpecial Weather StatementMEGItawamba49 min
Jun 21, 9:53 PM CDTSpecial Weather StatementMEGUnion52 min
Jun 21, 10:04 PM CDTSevere Thunderstorm WarningMEGLafayette, Panola41 min
Jun 21, 10:23 PM CDTSpecial Weather StatementMEGLee37 min
Jun 21, 10:31 PM CDTSevere Thunderstorm WarningMEGItawamba, Lee29 min
Jun 21, 10:45 PM CDTSpecial Weather StatementMEGLafayette30 min
Jun 21, 10:53 PM CDTSevere Thunderstorm WarningMEGItawamba, Lee, Monroe34 min
Jun 21, 11:11 PM CDTSpecial Weather StatementMEGPontotoc34 min
Jun 21, 11:15 PM CDTSpecial Weather StatementMEGLafayette45 min
Jun 21, 11:26 PM CDTSpecial Weather StatementMEGChickasaw, Itawamba, Lee49 min
Jun 21, 11:30 PM CDTSevere Thunderstorm WarningMEGChickasaw, Itawamba, Lee, Monroe, Pontotoc60 min
Jun 21, 11:54 PM CDTSpecial Weather StatementMEGCalhoun66 min
Jun 22, 12:00 AM CDTSevere Thunderstorm WarningMEGCalhoun, Chickasaw, Monroe45 min
Jun 22, 12:04 AM CDTSpecial Weather StatementMEGCalhoun, Yalobusha41 min
Jun 22, 12:39 AM CDTSevere Thunderstorm WarningMEGCalhoun, Chickasaw, Monroe, Yalobusha66 min
Jun 22, 7:46 AM CDTSevere Thunderstorm WarningMEGCoahoma29 min
Jun 22, 8:48 AM CDTSevere Thunderstorm WarningMEGTallahatchie, Yalobusha42 min
Jun 22, 10:16 AM CDTSevere Thunderstorm WarningMEGCoahoma, Quitman, Tallahatchie44 min

Nearby

Severe Thunderstorm Warnings in Mississippi, 2018Every severe thunderstorm warning in 2018

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.