Alert archive / Mississippi / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 550, NWS Jackson, MS

September 6, 2023Leake County, Scott County, Mississippi

NWS Jackson, MS issued this severe thunderstorm warning at Sep 6, 2023, 12:44 PM CDT for Leake County, Scott County, Mississippi. It was in force for 26 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: Sep 6, 2023, 12:44 PM CDT (17:44 UTC)
Expired: Sep 6, 2023, 1:10 PM CDT
In force: 26 min
Issued by: NWS Jackson, MS
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Leake County, MS, Scott County, MS

The radar

The Jackson/Brandon,MS radar (KDGX), 54 km from the middle of the area, began a volume at 17:45 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, 5.7 hours before the alert went out and 253 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: 1857 J/kg
Mixed-layer CIN: -91 J/kg
Mixed-layer LCL: 903 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: 146 m²/s²
0-3 km storm-relative helicity: 139 m²/s²
Significant tornado parameter: 0.6
Supercell composite: 4.2

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 Sep 6, 10:01 AM CDT, 2 hours 43 minutes earlier.

Area forecast discussion, Sep 6, 10:01 AM CDT, 2 hours 43 minutes before

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Hazardous weather outlook, Sep 6, 7:34 AM CDT, 5 hours 10 minutes before

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In the hours before

Special weather statement, Sep 6, 8:43 AM CDT, 4 hours 1 minute before

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Special weather statement, Sep 6, 9:42 AM CDT, 3 hours 2 minutes before

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Special weather statement, Sep 6, 11:23 AM CDT, 1 hour 21 minutes before

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Special weather statement, Sep 6, 12:28 PM CDT, 16 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
Sep 6, 3:02 AM CDT	Heat Advisory	JAN	Bolivar, Humphreys, Issaquena, Leflore, Sharkey, Sunflower and 1 more	17 hr
Sep 6, 8:43 AM CDT	Special Weather Statement	JAN	Grenada, Leflore, Sunflower	47 min
Sep 6, 9:42 AM CDT	Special Weather Statement	JAN	Carroll	33 min
Sep 6, 11:23 AM CDT	Special Weather Statement	JAN	Attala	52 min
Sep 6, 12:28 PM CDT	Special Weather Statement	JAN	Madison	32 min
Sep 6, 1:37 PM CDT	Special Weather Statement	JAN	Madison	38 min
Sep 6, 1:53 PM CDT	Special Weather Statement	JAN	Hinds	37 min
Sep 6, 2:34 PM CDT	Special Weather Statement	JAN	Copiah	41 min
Sep 6, 2:43 PM CDT	Special Weather Statement	JAN	Franklin	32 min
Sep 6, 4:24 PM CDT	Special Weather Statement	JAN	Bolivar	36 min
Sep 6, 6:37 PM CDT	Severe Thunderstorm Warning	JAN	Ashley, Chicot	53 min

Nearby

Severe Thunderstorm Warnings in Mississippi, 2023 Every severe thunderstorm warning in 2023

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.