Alert archive / Mississippi / Severe Thunderstorm Warnings in 2010

Severe Thunderstorm Warning 234, NWS Jackson, MS

May 29, 2010Claiborne County, Copiah County, Hinds County, Mississippi

NWS Jackson, MS issued this severe thunderstorm warning at May 29, 2010, 3:26 PM CDT for Claiborne County, Copiah County, Hinds County, Mississippi. It was in force for 34 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 29, 2010, 3:26 PM CDT (20:26 UTC)
Expired: May 29, 2010, 4:00 PM CDT
In force: 34 min
Issued by: NWS Jackson, MS
Area: Storm-based polygon

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

The radar

The Jackson/Brandon,MS radar (KDGX), 64 km from the middle of the area, began a volume at 20:26 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 29, 12:34 PM CDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Jackson, MS (KJAN), launched 12:00Z, 8.4 hours before the alert went out and 58 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: 394 J/kg
Mixed-layer CIN: -236 J/kg
Mixed-layer LCL: 1514 m above ground
0-6 km bulk shear: 18 kt
0-1 km storm-relative helicity: -24 m²/s²
0-3 km storm-relative helicity: 0 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

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 29, 2:36 PM CDT, 50 minutes earlier.

Area forecast discussion, May 29, 2:36 PM CDT, 50 minutes before

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Hazardous weather outlook, May 29, 3:26 PM CDT, 0 minutes before

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In the hours before

Special weather statement, May 29, 2:09 PM CDT, 1 hour 17 minutes before

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Special weather statement, May 29, 2:14 PM CDT, 1 hour 12 minutes before

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Special weather statement, May 29, 2:17 PM CDT, 1 hour 9 minutes before

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Special weather statement, May 29, 2:48 PM CDT, 38 minutes before

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Special weather statement, May 29, 2:58 PM CDT, 28 minutes before

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Special weather statement, May 29, 3:04 PM CDT, 22 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 28, 7:26 PM CDT	Severe Thunderstorm Warning	JAN	Kemper, Lauderdale	49 min
May 28, 8:03 PM CDT	Severe Thunderstorm Warning	JAN	Noxubee	42 min
May 28, 8:08 PM CDT	Severe Thunderstorm Warning	JAN	Noxubee, Winston	52 min
May 28, 8:29 PM CDT	River Flood Warning	JAN	Issaquena, Washington	25 hr
May 28, 8:34 PM CDT	Severe Thunderstorm Warning	JAN	Kemper	44 min
May 28, 8:54 PM CDT	Severe Thunderstorm Warning	JAN	Leake, Madison	21 min
May 29, 12:55 AM CDT	Severe Thunderstorm Warning	JAN	Leflore	50 min
May 29, 2:00 AM CDT	Severe Thunderstorm Warning	JAN	Holmes, Yazoo	45 min
May 29, 2:46 AM CDT	Severe Thunderstorm Warning	JAN	Yazoo	44 min
May 29, 1:33 PM CDT	Severe Thunderstorm Warning	JAN	Franklin	42 min
May 29, 2:32 PM CDT	Severe Thunderstorm Warning	JAN	Jefferson	43 min
May 29, 3:18 PM CDT	Severe Thunderstorm Warning	JAN	Claiborne, Warren	42 min
May 29, 12:53 PM CDT	Severe Thunderstorm Warning	JAN	Franklin, Tensas	37 min
May 29, 2:16 PM CDT	Flash Flood Warning	JAN	Franklin, Richland	76 min
May 29, 2:26 PM CDT	Severe Thunderstorm Warning	JAN	Franklin, Madison, Tensas	17 min
May 29, 2:40 PM CDT	Flash Flood Warning	JAN	Franklin, Madison, Tensas	108 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.