Alert archive / Louisiana / Severe Thunderstorm Warnings in 2024

Severe Thunderstorm Warning 169, NWS Jackson, MS

May 30, 2024Adams County, Mississippi; Catahoula Parish, Concordia Parish, Louisiana

NWS Jackson, MS issued this severe thunderstorm warning at May 30, 2024, 10:20 PM CDT for Adams County, Mississippi; Catahoula Parish, Concordia Parish, Louisiana. It was in force for 55 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 30, 2024, 10:20 PM CDT (03:20 UTC)
Expired: May 30, 2024, 11:15 PM CDT
In force: 55 min
Issued by: NWS Jackson, MS
Area: Storm-based polygon
Tornado: Possible
Hail: 0.75 in
Wind: 60.0 mph

Counties Catahoula Parish, LA, Concordia Parish, LA, Adams County, MS

The radar

The Ft Polk radar (KPOE), 136 km from the middle of the area, began a volume at 03:23 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
May 30, 10:08 PM CDT	Severe Thunderstorm Watch	SPC	3 hr

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 00:00Z, 3.3 hours before the alert went out and 218 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: 2455 J/kg
Mixed-layer CIN: -3 J/kg
Mixed-layer LCL: 990 m above ground
0-6 km bulk shear: 29 kt
0-1 km storm-relative helicity: 21 m²/s²
0-3 km storm-relative helicity: 81 m²/s²
Significant tornado parameter: 0.3
Supercell composite: 2.6

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 30, 7:49 PM CDT, 2 hours 31 minutes earlier.

Area forecast discussion, May 30, 7:49 PM CDT, 2 hours 31 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 30, 11:43 PM CDT	Special Weather Statement	JAN	Adams	47 min
May 31, 12:19 AM CDT	Special Weather Statement	JAN	Claiborne, Franklin, Jefferson	56 min
May 31, 1:14 AM CDT	Special Weather Statement	JAN	Copiah	61 min
May 31, 2:16 PM CDT	Special Weather Statement	JAN	Scott	44 min
May 31, 2:22 PM CDT	Special Weather Statement	JAN	Leake	53 min
May 31, 2:50 PM CDT	Special Weather Statement	JAN	Adams	40 min
May 31, 3:04 PM CDT	Special Weather Statement	JAN	Winston	41 min
May 31, 3:21 PM CDT	Special Weather Statement	JAN	Adams	39 min
May 31, 3:23 PM CDT	Special Weather Statement	JAN	Simpson	37 min
May 31, 3:45 PM CDT	Special Weather Statement	JAN	Rankin	30 min
May 31, 3:54 PM CDT	Special Weather Statement	JAN	Rankin	36 min
May 31, 4:26 PM CDT	Special Weather Statement	JAN	Rankin	34 min
May 31, 4:28 PM CDT	Special Weather Statement	JAN	Hinds	32 min
May 31, 4:44 PM CDT	Special Weather Statement	JAN	Issaquena	46 min
May 31, 4:53 PM CDT	Special Weather Statement	JAN	Madison, Yazoo	52 min
May 31, 5:28 PM CDT	Special Weather Statement	JAN	Sharkey, Washington	47 min
May 31, 5:30 PM CDT	Special Weather Statement	JAN	Holmes, Humphreys	45 min
May 31, 6:26 PM CDT	Special Weather Statement	JAN	Washington	49 min
May 30, 11:13 PM CDT	Special Weather Statement	JAN	Catahoula, Concordia	47 min
May 31, 4:52 AM CDT	Special Weather Statement	JAN	East Carroll, Franklin, Madison, Morehouse, Richland, Tensas and 1 more	23 min
May 31, 3:48 PM CDT	Special Weather Statement	JAN	Tensas	27 min
May 31, 4:10 PM CDT	Special Weather Statement	JAN	Madison, Tensas	50 min

Nearby

Severe Thunderstorm Warnings in Louisiana, 2024 Severe Thunderstorm Warnings in Mississippi, 2024 Every severe thunderstorm warning in 2024

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.