Alert archive / Mississippi / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 44, NWS New Orleans, LA

February 17, 2008Hancock County, Mississippi

NWS New Orleans, LA issued this severe thunderstorm warning at Feb 17, 2008, 10:08 AM CST for Hancock County, Mississippi. It was in force for 32 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: Feb 17, 2008, 10:08 AM CST (16:08 UTC)
Expired: Feb 17, 2008, 10:40 AM CST
In force: 32 min
Issued by: NWS New Orleans, LA
Area: Storm-based polygon

County Hancock County, MS

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 4.1 hours before the alert went out and 27 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: 412 J/kg
Mixed-layer CIN: -29 J/kg
Mixed-layer LCL: 645 m above ground
0-6 km bulk shear: 59 kt
0-1 km storm-relative helicity: 233 m²/s²
0-3 km storm-relative helicity: 242 m²/s²
Significant tornado parameter: 0.6
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 New Orleans, LA wrote its last area forecast discussion before this severe thunderstorm warning went out at Feb 17, 7:51 AM CST, 2 hours 17 minutes earlier.

Area forecast discussion, Feb 17, 7:51 AM CST, 2 hours 17 minutes before

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Hazardous weather outlook, Feb 17, 6:09 AM CST, 3 hours 59 minutes before

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In the hours before

Local storm report, Feb 17, 7:32 AM CST, 2 hours 36 minutes before

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Special weather statement, Feb 17, 8:07 AM CST, 2 hours 1 minute before

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Local storm report, Feb 17, 9:00 AM CST, 1 hour 8 minutes before

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Local storm report, Feb 17, 9:01 AM CST, 1 hour 7 minutes before

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Special weather statement, Feb 17, 9:44 AM CST, 24 minutes before

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Local storm report, Feb 17, 9:53 AM CST, 15 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
Feb 17, 1:34 AM CST	Severe Thunderstorm Warning	LIX	Pointe Coupee, West Feliciana	56 min
Feb 17, 3:24 AM CST	Severe Thunderstorm Warning	LIX	Saint Helena, Tangipahoa	36 min
Feb 17, 3:38 AM CST	Tornado Warning	LIX	Saint Helena, Tangipahoa	37 min
Feb 17, 4:12 AM CST	Tornado Warning	LIX	Tangipahoa, Washington	33 min
Feb 17, 4:48 AM CST	Tornado Warning	LIX	Washington	27 min
Feb 17, 4:54 AM CST	Severe Thunderstorm Warning	LIX	Saint Tammany, Washington	36 min
Feb 17, 9:18 AM CST	Special Marine Warning	LIX		27 min
Feb 17, 10:33 AM CST	Special Marine Warning	LIX		87 min
Feb 17, 12:11 PM CST	Special Marine Warning	LIX		2 hr
Feb 17, 5:13 AM CST	Severe Thunderstorm Warning	LIX	Pearl River	62 min
Feb 17, 10:18 AM CST	Tornado Warning	LIX	Hancock, Harrison	27 min

Nearby

Severe Thunderstorm Warnings in Mississippi, 2008 Every severe thunderstorm warning in 2008

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.