Alert archive / Mississippi / Severe Thunderstorm Warnings in 2010

Severe Thunderstorm Warning 404, NWS Jackson, MS

August 4, 20104 counties in Mississippi

NWS Jackson, MS issued this severe thunderstorm warning at Aug 4, 2010, 4:55 PM CDT for 4 counties in 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: Aug 4, 2010, 4:55 PM CDT (21:55 UTC)
Expired: Aug 4, 2010, 5:45 PM CDT
In force: 50 min
Issued by: NWS Jackson, MS
Area: Storm-based polygon

Counties Claiborne County, MS, Copiah County, MS, Hinds County, MS, Warren County, MS

The radar

The Jackson/Brandon,MS radar (KDGX), 66 km from the middle of the area, began a volume at 21:55 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

Slidell Radar S, LA (KSIL), launched 12:00Z, 9.9 hours before the alert went out and 227 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: 4721 J/kg
Mixed-layer CIN: -3 J/kg
Mixed-layer LCL: 544 m above ground
0-6 km bulk shear: 18 kt
0-1 km storm-relative helicity: -13 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 Aug 4, 4:06 PM CDT, 49 minutes earlier.

Area forecast discussion, Aug 4, 4:06 PM CDT, 49 minutes before

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Hazardous weather outlook, Aug 4, 3:08 PM CDT, 1 hour 47 minutes before

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In the hours before

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

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Local storm report, Aug 4, 4:25 PM CDT, 30 minutes before

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Special weather statement, Aug 4, 4:40 PM CDT, 15 minutes before

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Local storm report, Aug 4, 4:43 PM CDT, 12 minutes before

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Special weather statement, Aug 4, 4:50 PM CDT, 5 minutes before

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Special weather statement, Aug 4, 4:51 PM CDT, 4 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
Aug 4, 1:21 PM CDT	Severe Thunderstorm Warning	JAN	Leake	39 min
Aug 4, 1:34 PM CDT	Severe Thunderstorm Warning	JAN	Rankin, Simpson	41 min
Aug 4, 1:38 PM CDT	Severe Thunderstorm Warning	JAN	Madison, Rankin, Scott	52 min
Aug 4, 1:41 PM CDT	Severe Thunderstorm Warning	JAN	Covington, Jones	34 min
Aug 4, 1:55 PM CDT	Severe Thunderstorm Warning	JAN	Choctaw, Montgomery, Webster	50 min
Aug 4, 2:24 PM CDT	Severe Thunderstorm Warning	JAN	Hinds, Madison, Rankin	51 min
Aug 4, 2:39 PM CDT	Severe Thunderstorm Warning	JAN	Leake	36 min
Aug 4, 2:41 PM CDT	Severe Thunderstorm Warning	JAN	Covington, Forrest, Lamar	34 min
Aug 4, 2:54 PM CDT	Severe Thunderstorm Warning	JAN	Jefferson Davis, Lawrence, Simpson	36 min
Aug 4, 3:05 PM CDT	Severe Thunderstorm Warning	JAN	Hinds, Rankin	40 min
Aug 4, 3:17 PM CDT	Severe Thunderstorm Warning	JAN	Hinds	43 min
Aug 4, 3:19 PM CDT	Severe Thunderstorm Warning	JAN	Neshoba, Newton	41 min
Aug 4, 3:29 PM CDT	Severe Thunderstorm Warning	JAN	Covington, Jefferson Davis	46 min
Aug 4, 3:30 PM CDT	Severe Thunderstorm Warning	JAN	Forrest, Lamar	30 min
Aug 4, 3:33 PM CDT	Severe Thunderstorm Warning	JAN	Copiah, Lawrence, Lincoln, Simpson	42 min
Aug 4, 3:48 PM CDT	Severe Thunderstorm Warning	JAN	Copiah, Lincoln	42 min
Aug 4, 3:54 PM CDT	Severe Thunderstorm Warning	JAN	Jasper	36 min
Aug 4, 3:55 PM CDT	Severe Thunderstorm Warning	JAN	Hinds	39 min
Aug 4, 3:57 PM CDT	Severe Thunderstorm Warning	JAN	Clarke, Jasper, Lauderdale, Newton	63 min
Aug 4, 4:18 PM CDT	Severe Thunderstorm Warning	JAN	Warren	21 min
Aug 4, 4:25 PM CDT	Severe Thunderstorm Warning	JAN	Clarke, Jasper	65 min
Aug 4, 4:28 PM CDT	Severe Thunderstorm Warning	JAN	Attala, Holmes, Leake, Madison, Yazoo	47 min
Aug 4, 4:32 PM CDT	Severe Thunderstorm Warning	JAN	Copiah, Simpson	43 min
Aug 4, 5:02 PM CDT	Severe Thunderstorm Warning	JAN	Jones	36 min
Aug 4, 5:09 PM CDT	Severe Thunderstorm Warning	JAN	Holmes, Yazoo	41 min
Aug 4, 5:22 PM CDT	Severe Thunderstorm Warning	JAN	Claiborne, Copiah	38 min
Aug 4, 6:14 PM CDT	Severe Thunderstorm Warning	JAN	Humphreys, Leflore, Sunflower	46 min
Aug 4, 6:19 PM CDT	Severe Thunderstorm Warning	JAN	Lowndes	41 min
Aug 4, 6:47 PM CDT	Severe Thunderstorm Warning	JAN	Lowndes, Noxubee	43 min
Aug 4, 1:31 PM CDT	Severe Thunderstorm Warning	JAN	East Carroll, West Carroll	44 min
Aug 4, 3:33 PM CDT	Severe Thunderstorm Warning	JAN	Madison, Tensas	42 min

Nearby

Severe Thunderstorm Warnings in Mississippi, 2010 Every severe thunderstorm warning in 2010

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.