Alert archive / Mississippi / Severe Thunderstorm Warnings in 2020

Severe Thunderstorm Warning 229, NWS Jackson, MS

May 23, 2020Kemper County, Noxubee County, Mississippi

NWS Jackson, MS issued this severe thunderstorm warning at May 23, 2020, 5:12 PM CDT for Kemper County, Noxubee County, 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: May 23, 2020, 5:12 PM CDT (22:12 UTC)
Expired: May 23, 2020, 6:02 PM CDT
In force: 50 min
Issued by: NWS Jackson, MS
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Kemper County, MS, Noxubee County, MS

The radar

The Columbus AFB radar (KGWX), 110 km from the middle of the area, began a volume at 22:16 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

Birmingham, AL (KBMX), launched 12:00Z, 10.2 hours before the alert went out and 172 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: 414 J/kg
Mixed-layer CIN: -117 J/kg
Mixed-layer LCL: 765 m above ground
0-6 km bulk shear: 1 kt
0-1 km storm-relative helicity: -4 m²/s²
0-3 km storm-relative helicity: 11 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.8

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 Jackson, MS wrote its last area forecast discussion before this severe thunderstorm warning went out at May 23, 3:28 PM CDT, 1 hour 44 minutes earlier.

Area forecast discussion, May 23, 3:28 PM CDT, 1 hour 44 minutes before

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Hazardous weather outlook, May 23, 3:14 PM CDT, 1 hour 58 minutes before

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In the hours before

Special weather statement, May 23, 4:30 PM CDT, 42 minutes before

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Special weather statement, May 23, 4:32 PM CDT, 40 minutes before

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Special weather statement, May 23, 4:34 PM CDT, 38 minutes before

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Special weather statement, May 23, 4:46 PM CDT, 26 minutes before

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Local storm report, May 23, 4:47 PM CDT, 25 minutes before

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Special weather statement, May 23, 4:53 PM CDT, 19 minutes before

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The office that day

Everything else NWS Jackson, MS issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 23, 6:55 AM CDT	Special Weather Statement	JAN	Grenada	35 min
May 23, 12:26 PM CDT	Special Weather Statement	JAN	Lincoln	49 min
May 23, 1:06 PM CDT	Special Weather Statement	JAN	Madison	39 min
May 23, 1:07 PM CDT	Special Weather Statement	JAN	Hinds	23 min
May 23, 1:08 PM CDT	Special Weather Statement	JAN	Copiah	37 min
May 23, 1:15 PM CDT	Severe Thunderstorm Warning	JAN	Hinds	21 min
May 23, 1:20 PM CDT	Special Weather Statement	JAN	Franklin	25 min
May 23, 1:24 PM CDT	Special Weather Statement	JAN	Madison	36 min
May 23, 1:25 PM CDT	Special Weather Statement	JAN	Rankin	50 min
May 23, 1:27 PM CDT	Special Weather Statement	JAN	Choctaw	48 min
May 23, 1:33 PM CDT	Special Weather Statement	JAN	Clay	27 min
May 23, 1:35 PM CDT	Severe Thunderstorm Warning	JAN	Hinds, Madison	40 min
May 23, 1:39 PM CDT	Severe Thunderstorm Warning	JAN	Copiah, Franklin, Jefferson, Lincoln	51 min
May 23, 1:44 PM CDT	Special Weather Statement	JAN	Clay	31 min
May 23, 1:47 PM CDT	Severe Thunderstorm Warning	JAN	Claiborne, Issaquena, Warren	58 min
May 23, 1:52 PM CDT	Severe Thunderstorm Warning	JAN	Attala, Leake, Madison	29 min
May 23, 1:53 PM CDT	Special Weather Statement	JAN	Scott	52 min
May 23, 2:04 PM CDT	Special Weather Statement	JAN	Adams, Franklin, Jefferson	41 min
May 23, 2:05 PM CDT	Severe Thunderstorm Warning	JAN	Madison, Rankin	25 min
May 23, 2:11 PM CDT	Special Weather Statement	JAN	Marion	34 min
May 23, 2:12 PM CDT	Special Weather Statement	JAN	Simpson	33 min
May 23, 2:19 PM CDT	Special Weather Statement	JAN	Leake	41 min
May 23, 2:27 PM CDT	Severe Thunderstorm Warning	JAN	Hinds, Issaquena, Sharkey, Warren, Yazoo	63 min
May 23, 2:29 PM CDT	Severe Thunderstorm Warning	JAN	Leake, Madison	43 min
May 23, 2:32 PM CDT	Special Weather Statement	JAN	Attala	28 min
May 23, 2:43 PM CDT	Special Weather Statement	JAN	Jones	47 min
May 23, 2:46 PM CDT	Special Weather Statement	JAN	Hinds	44 min
May 23, 2:48 PM CDT	Special Weather Statement	JAN	Smith	27 min
May 23, 2:50 PM CDT	Severe Thunderstorm Warning	JAN	Simpson, Smith	40 min
May 23, 2:54 PM CDT	Special Weather Statement	JAN	Rankin	36 min
May 23, 2:59 PM CDT	Special Weather Statement	JAN	Covington	31 min
May 23, 3:03 PM CDT	Special Weather Statement	JAN	Rankin	27 min
May 23, 3:14 PM CDT	Special Weather Statement	JAN	Scott	31 min
May 23, 3:18 PM CDT	Severe Thunderstorm Warning	JAN	Holmes, Humphreys, Yazoo	30 min
May 23, 3:26 PM CDT	Special Weather Statement	JAN	Winston	49 min
May 23, 3:32 PM CDT	Severe Thunderstorm Warning	JAN	Choctaw, Winston	58 min
May 23, 3:34 PM CDT	Severe Thunderstorm Warning	JAN	Covington, Simpson, Smith	56 min
May 23, 3:39 PM CDT	Special Weather Statement	JAN	Lauderdale	36 min
May 23, 3:44 PM CDT	Special Weather Statement	JAN	Jasper	46 min
May 23, 3:47 PM CDT	Special Weather Statement	JAN	Scott	28 min
May 23, 3:48 PM CDT	Special Weather Statement	JAN	Humphreys	27 min
May 23, 3:54 PM CDT	Special Weather Statement	JAN	Newton	36 min
May 23, 4:10 PM CDT	Severe Thunderstorm Warning	JAN	Jasper, Lauderdale, Newton	48 min
May 23, 4:17 PM CDT	Special Weather Statement	JAN	Oktibbeha	28 min
May 23, 4:30 PM CDT	Special Weather Statement	JAN	Lowndes	30 min
May 23, 4:32 PM CDT	Special Weather Statement	JAN	Lauderdale	28 min
May 23, 4:34 PM CDT	Special Weather Statement	JAN	Lowndes	26 min
May 23, 4:43 PM CDT	Severe Thunderstorm Warning	JAN	Kemper, Neshoba	47 min
May 23, 4:46 PM CDT	Special Weather Statement	JAN	Lowndes	29 min
May 23, 4:51 PM CDT	Severe Thunderstorm Warning	JAN	Clay, Lowndes, Oktibbeha	54 min
May 23, 4:53 PM CDT	Special Weather Statement	JAN	Kemper	37 min
May 23, 4:57 PM CDT	Severe Thunderstorm Warning	JAN	Kemper	30 min
May 23, 5:14 PM CDT	Special Weather Statement	JAN	Lowndes	31 min
May 23, 1:18 PM CDT	Special Weather Statement	JAN	Franklin, Madison, Richland, Tensas	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.