Alert archive / Mississippi / Severe Thunderstorm Warnings in 2009

Severe Thunderstorm Warning 121, NWS New Orleans, LA

May 24, 2009Amite County, Pike County, Mississippi

NWS New Orleans, LA issued this severe thunderstorm warning at May 24, 2009, 5:04 PM CDT for Amite County, Pike 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: May 24, 2009, 5:04 PM CDT (22:04 UTC)
Expired: May 24, 2009, 5:30 PM CDT
In force: 26 min
Issued by: NWS New Orleans, LA
Area: Storm-based polygon

Counties Amite County, MS, Pike County, MS

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 10.1 hours before the alert went out and 134 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: 1716 J/kg
Mixed-layer CIN: -7 J/kg
Mixed-layer LCL: 528 m above ground
0-6 km bulk shear: 17 kt
0-1 km storm-relative helicity: 81 m²/s²
0-3 km storm-relative helicity: 91 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

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 New Orleans, LA wrote its last area forecast discussion before this severe thunderstorm warning went out at May 24, 4:13 PM CDT, 51 minutes earlier.

Area forecast discussion, May 24, 4:13 PM CDT, 51 minutes before

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Hazardous weather outlook, May 24, 3:41 PM CDT, 1 hour 23 minutes before

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In the hours before

Special weather statement, May 24, 3:21 PM CDT, 1 hour 43 minutes before

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Special weather statement, May 24, 4:27 PM CDT, 37 minutes before

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The office that day

Everything else NWS New Orleans, LA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 24, 3:16 AM CDT	Tornado Warning	LIX	Jackson	44 min

Nearby

Severe Thunderstorm Warnings in Mississippi, 2009 Every severe thunderstorm warning in 2009

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.