Alert archive / Mississippi / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 171, NWS New Orleans, LA

October 13, 2001Harrison County, Jackson County, Mississippi

NWS New Orleans, LA issued this severe thunderstorm warning at Oct 13, 2001, 6:15 PM CDT for Harrison County, Jackson County, Mississippi. It was in force for 60 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Oct 13, 2001, 6:15 PM CDT (23:15 UTC)
Expired
Oct 13, 2001, 7:15 PM CDT
In force
60 min
Issued by
NWS New Orleans, LA
Area
Whole counties; the outline is the Mesonet’s reconstruction

Counties Harrison County, MS, Jackson County, MS

What was reported inside it

TimeReportWhereRemark
Oct 13, 7:00 PM CDTThunderstorm WindPascagoula, MSThunderstorm winds blew down several trees and power lines, blew out windows in three buildings, damaged the pump awning and door of a gas station, and destroyed the crossing arms at two railroad crossings. A large tree limb damaged a car that it fell on. The

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Oct 13, 6:00 PM CDTTornado WatchSPC6 hr

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 11.3 hours before the alert went out and 84 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-pSkew-T log-p diagram, Slidell Radar S, LA at 12:00Z on 2001-10-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1483 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Slidell Radar S, LA at 12:00Z on 2001-10-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 223 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
1483 J/kg
Mixed-layer CIN
-1 J/kg
Mixed-layer LCL
513 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
223 m²/s²
0-3 km storm-relative helicity
295 m²/s²
Significant tornado parameter
1.8
Supercell composite
9.9

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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 Oct 13, 5:00 PM CDT, 1 hour 15 minutes earlier.

Area forecast discussion, Oct 13, 5:00 PM CDT, 1 hour 15 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NEW ORLEANS/BATON ROUGE LA
500 PM CDT SAT OCT 13 2001

SEE THE ZONES. THINGS WILL IMPROVE RAPIDLY ONCE THE TROUGH AND VORT
MAX MOVES THROUGH THE LOWER MISSISSIPPI.

MCB UU 057/076 048/078 052 17800
BTR UU 060/080 051/078 053 17800
MSY UU 063/078 058/078 058 17800
GPT UU 063/078 053/077 054 17+00

.NEW...SMALL CRAFT ADZY KPQL TO ATCHAFALAYA RVR.
LA...COASTAL FLOOD WARNING EXTREME SOUTHEAST COASTAL PARISHES UNTIL
MIDNIGHT.
MS...COASTAL FLOOD WARNING FOR HANCOCK...AND A COASTAL FLOOD WATCH
IS IN EFFECT FOR JACKSON AND HARRISON COUNTY UNTIL MIDNIGHT.

17

In the hours before

Special weather statement, Oct 13, 2:35 PM CDT, 3 hours 40 minutes before
LAZ034>038-046>050-056>060-065>067-MSZ068>070-132200-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NEW ORLEANS LA
235 PM CDT SAT OCT 13 2001

THE TORNADO WATCH IS NO LONGER IN EFFECT FOR SOUTHWEST MISSISSIPPI
AND SOUTHEAST LOUISIANA ALONG AND WEST OF A LINE EXTENDING FROM
MCCOMB MISSISSIPPI TO HOUMA LOUISIANA. THE LINE OF SEVERE
THUNDERSTORMS HAS MOVED EAST OF THIS AREA.

THE TORNADO WATCH CONTINUES FOR THE REMAINDER OF SOUTHEAST LOUISIANA
AND FOR THE COASTAL MISSISSIPPI COUNTIES UNTIL 6 PM CDT.
Special weather statement, Oct 13, 5:25 PM CDT, 50 minutes before
LAZ064-LAZ067>070-MSZ080>082-132300-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NEW ORLEANS LA
525 PM CDT SAT OCT 13 2001

THE TORNADO WATCH REMAINS IN EFFECT UNTIL 6 PM FOR PLAQUEMINES
...LOWER JEFFERSON...ST BERNARD...LOWER LAFOURCHE PARISHES AND FOR
HANCOCK...HARRISON AND JACKSON COUNTIES IN MISSISSIPPI.

ALL OTHER PARISHES IN SOUTHEAST LOUISIANA ARE NO LONGER IN THE
TORNADO WATCH.
Special weather statement, Oct 13, 6:01 PM CDT, 14 minutes before
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Local storm report, Oct 13, 6:05 PM CDT, 10 minutes before
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<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
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</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
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      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
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The office that day

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

IssuedProductOfficeCountiesLasted
Oct 13, 10:51 AM CDTSevere Thunderstorm WarningLIXEast Baton Rouge, East Feliciana, Livingston, Saint Helena, Tangipahoa54 min
Oct 13, 11:35 AM CDTTornado WarningLIXTangipahoa, Washington25 min
Oct 13, 11:35 AM CDTTornado WarningLIXSaint Helena25 min
Oct 13, 11:50 AM CDTSpecial Marine WarningLIX2 hr
Oct 13, 11:50 AM CDTSpecial Marine WarningLIX2 hr
Oct 13, 12:00 PM CDTSevere Thunderstorm WarningLIXTangipahoa, Washington60 min
Oct 13, 12:00 PM CDTSevere Thunderstorm WarningLIXSaint Tammany60 min
Oct 13, 12:28 PM CDTSevere Thunderstorm WarningLIXAscension, Livingston, Saint James, Saint John the Baptist62 min
Oct 13, 12:28 PM CDTSevere Thunderstorm WarningLIXJefferson, Lafourche, Saint Charles62 min
Oct 13, 12:28 PM CDTSevere Thunderstorm WarningLIXTangipahoa62 min
Oct 13, 12:49 PM CDTSevere Thunderstorm WarningLIXSaint Tammany56 min
Oct 13, 12:49 PM CDTSevere Thunderstorm WarningLIXWashington56 min
Oct 13, 1:14 PM CDTSevere Thunderstorm WarningLIXJefferson, Orleans, Saint Bernard61 min
Oct 13, 1:14 PM CDTSevere Thunderstorm WarningLIXLafourche, Saint Charles61 min
Oct 13, 1:39 PM CDTSevere Thunderstorm WarningLIXSaint Tammany66 min
Oct 13, 2:00 PM CDTSpecial Marine WarningLIX2 hr
Oct 13, 2:00 PM CDTSpecial Marine WarningLIX2 hr
Oct 13, 2:20 PM CDTSevere Thunderstorm WarningLIXOrleans, Saint Bernard25 min
Oct 13, 4:00 PM CDTSpecial Marine WarningLIX2 hr
Oct 13, 4:50 PM CDTSpecial Marine WarningLIX115 min
Oct 13, 4:50 PM CDTSpecial Marine WarningLIX115 min
Oct 13, 5:00 PM CDTSevere Thunderstorm WarningLIXJefferson, Lafourche60 min
Oct 13, 5:35 PM CDTSevere Thunderstorm WarningLIXPlaquemines55 min
Oct 13, 6:00 PM CDTSpecial Marine WarningLIX2 hr
Oct 13, 6:35 PM CDTTornado WarningLIXPlaquemines25 min
Oct 13, 11:13 AM CDTSevere Thunderstorm WarningLIXAmite, Pike62 min
Oct 13, 11:13 AM CDTSevere Thunderstorm WarningLIXWalthall62 min
Oct 13, 1:39 PM CDTSevere Thunderstorm WarningLIXHarrison66 min
Oct 13, 2:45 PM CDTSevere Thunderstorm WarningLIXHancock, Harrison, Pearl River45 min
Oct 13, 3:30 PM CDTFlash Flood WarningLIXHancock2 hr
Oct 13, 4:15 PM CDTSevere Thunderstorm WarningLIXHarrison60 min
Oct 13, 6:40 PM CDTTornado WarningLIXJackson50 min

Nearby

Severe Thunderstorm Warnings in Mississippi, 2001Every severe thunderstorm warning in 2001

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.