Alert archive / Mississippi / Special Weather Statements in 2021

Special Weather Statement, NWS New Orleans, LA

April 23, 2021Wilkinson County, Mississippi

NWS New Orleans, LA issued this special weather statement at Apr 23, 2021, 8:47 PM CDT for Wilkinson County, Mississippi. It was in force for 28 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Apr 23, 2021, 8:47 PM CDT (01:47 UTC)
Expired: Apr 23, 2021, 9:15 PM CDT
In force: 28 min
Issued by: NWS New Orleans, LA

County Wilkinson County, MS

The nearest sounding before it

Jackson, MS (KJAN), launched 00:00Z, 1.8 hours before the alert went out and 169 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1198 m above ground
0-6 km bulk shear: 62 kt
0-1 km storm-relative helicity: 238 m²/s²
0-3 km storm-relative helicity: 244 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Apr 23, 5:36 PM CDT, 3 hours 11 minutes earlier.

Area forecast discussion, Apr 23, 5:36 PM CDT, 3 hours 11 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>
  <link rel="stylesheet" href="index.css">
</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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        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
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In the hours before

Special weather statement, Apr 23, 8:17 PM CDT, 30 minutes before

Special Weather Statement
National Weather Service New Orleans LA
817 PM CDT Fri Apr 23 2021

MSZ070-071-240145-
Pike-Walthall-
817 PM CDT Fri Apr 23 2021

...A STRONG THUNDERSTORM WILL AFFECT NORTHWESTERN WALTHALL AND
CENTRAL PIKE COUNTIES...

At 817 PM CDT, a strong thunderstorm was located over Magnolia, or 7
miles south of Mccomb, moving northeast at 55 mph.

Pea size hail is possible with this storm.

Locations impacted include...
Mccomb, Magnolia, Tylertown, Salem and Mccomb Airport.

This includes Interstate 55 in Mississippi between mile markers 8 and
14.

LAT...LON 3135 9009 3133 9008 3133 9004 3118 9003
      3118 9001 3117 9000 3102 9044 3118 9053
      3135 9027
TIME...MOT...LOC 0117Z 236DEG 47KT 3114 9043

Special weather statement, Apr 23, 8:47 PM CDT, 0 minutes before

Special Weather Statement
National Weather Service New Orleans LA
847 PM CDT Fri Apr 23 2021

MSZ068-240215-
Wilkinson-
847 PM CDT Fri Apr 23 2021

...A STRONG THUNDERSTORM WILL AFFECT NORTHERN WILKINSON COUNTY...

At 846 PM CDT, a strong thunderstorm was located 7 miles southwest of
Sibley, or 16 miles southeast of Monterey, moving northeast at 55
mph.

Winds in excess of 40 mph and half inch hail are possible with this
storm.

Locations impacted include...
Dolorosa.

LAT...LON 3135 9121 3131 9108 3120 9109 3113 9154
      3123 9158 3124 9154 3122 9153 3123 9149
      3126 9148 3128 9149 3129 9147 3132 9146
      3132 9142 3136 9130 3137 9122
TIME...MOT...LOC 0146Z 241DEG 50KT 3131 9149

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 23, 9:28 PM CDT	Severe Thunderstorm Warning	LIX	Tangipahoa, Washington	47 min
Apr 23, 10:12 PM CDT	Special Weather Statement	LIX	East Baton Rouge, West Baton Rouge	33 min
Apr 23, 10:34 PM CDT	Severe Thunderstorm Warning	LIX	East Baton Rouge, Livingston, West Baton Rouge	26 min
Apr 23, 10:47 PM CDT	Tornado Warning	LIX	East Baton Rouge, Livingston, West Baton Rouge	28 min
Apr 23, 11:14 PM CDT	Severe Thunderstorm Warning	LIX	Livingston, Saint Helena, Tangipahoa	31 min
Apr 23, 11:46 PM CDT	Severe Thunderstorm Warning	LIX	Saint Tammany, Tangipahoa, Washington	44 min
Apr 24, 12:28 AM CDT	Severe Thunderstorm Warning	LIX	Washington	47 min
Apr 24, 12:56 AM CDT	Special Weather Statement	LIX	East Baton Rouge, East Feliciana, Pointe Coupee, West Baton Rouge, West Feliciana	64 min
Apr 24, 1:36 AM CDT	Special Weather Statement	LIX	Livingston	24 min
Apr 24, 1:43 AM CDT	Special Weather Statement	LIX	Washington	32 min
Apr 24, 1:50 AM CDT	Severe Thunderstorm Warning	LIX	Ascension, East Baton Rouge, Iberville, Livingston, Saint Helena, Tangipahoa	25 min
Apr 24, 2:17 AM CDT	Special Weather Statement	LIX	Ascension, Livingston, Tangipahoa, Washington	43 min
Apr 24, 3:00 AM CDT	Special Weather Statement	LIX	Assumption, Saint James, Saint John the Baptist, Saint Tammany	60 min
Apr 24, 3:02 AM CDT	Special Marine Warning	LIX		58 min
Apr 24, 3:21 AM CDT	Special Weather Statement	LIX	Ascension, East Baton Rouge, Livingston, Saint John the Baptist, Tangipahoa	39 min
Apr 24, 3:30 AM CDT	Severe Thunderstorm Warning	LIX	Ascension, Livingston, Saint James, Saint John the Baptist, Tangipahoa	30 min
Apr 24, 3:55 AM CDT	Special Marine Warning	LIX		65 min
Apr 24, 3:59 AM CDT	Special Weather Statement	LIX	Orleans, Saint Charles	61 min
Apr 24, 4:06 AM CDT	Severe Thunderstorm Warning	LIX	Saint Tammany	24 min
Apr 24, 5:36 AM CDT	Special Weather Statement	LIX	Saint Tammany	39 min
Apr 24, 9:44 AM CDT	River Flood Warning	LIX	Tangipahoa	3 days
Apr 24, 9:46 AM CDT	River Flood Warning	LIX	Saint Tammany	48 hr
Apr 24, 11:12 AM CDT	River Flood Warning	LIX	Saint Tammany	21 days
Apr 24, 11:12 AM CDT	River Flood Warning	LIX	Washington	72 hr
Apr 23, 8:17 PM CDT	Special Weather Statement	LIX	Pike, Walthall	28 min
Apr 23, 9:20 PM CDT	River Flood Warning	LIX	Pike, Walthall	70 hr
Apr 23, 10:02 PM CDT	Severe Thunderstorm Warning	LIX	Walthall	13 min
Apr 24, 1:16 AM CDT	Special Weather Statement	LIX	Amite, Pike	59 min
Apr 24, 1:26 AM CDT	Severe Thunderstorm Warning	LIX	Amite, Pike, Walthall, Wilkinson	49 min
Apr 24, 1:41 AM CDT	Special Weather Statement	LIX	Pearl River	34 min
Apr 24, 2:35 AM CDT	Special Weather Statement	LIX	Amite, Pike	40 min
Apr 24, 3:42 AM CDT	Severe Thunderstorm Warning	LIX	Pearl River	18 min
Apr 24, 4:30 AM CDT	Special Weather Statement	LIX	Hancock, Harrison	75 min
Apr 24, 4:53 AM CDT	Severe Thunderstorm Warning	LIX	Jackson	52 min
Apr 24, 11:13 AM CDT	River Flood Warning	LIX	Pearl River	46 hr

Nearby

Special Weather Statements in Mississippi, 2021 Every special weather statement in 2021

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.