Alert archive / Mississippi / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 75, NWS New Orleans, LA

April 23, 2021Walthall County, Mississippi

NWS New Orleans, LA issued this severe thunderstorm warning at Apr 23, 2021, 10:02 PM CDT for Walthall County, Mississippi. It was in force for 13 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Apr 23, 2021, 10:02 PM CDT (03:02 UTC)
Expired
Apr 23, 2021, 10:15 PM CDT
In force
13 min
Issued by
NWS New Orleans, LA
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

County Walthall County, MS

What was reported inside it

TimeReportWhereRemark
Apr 23, 10:08 PM CDTHAIL 1.752 Ese Tylertown, MS

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

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

IssuedProductOfficeLasted
Apr 23, 8:30 PM CDTTornado WatchSPC8 hr

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 00:00Z, 3.0 hours before the alert went out and 103 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 00:00Z on 2021-04-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 00:00Z on 2021-04-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 156 square meters per square second.1939587897117Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
873 m above ground
0-6 km bulk shear
62 kt
0-1 km storm-relative helicity
156 m²/s²
0-3 km storm-relative helicity
263 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

669 
WUUS54 KLIX 240302
SVRLIX
MSC147-240315-
/O.NEW.KLIX.SV.W.0075.210424T0302Z-210424T0315Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service New Orleans LA
1002 PM CDT Fri Apr 23 2021

The National Weather Service in New Orleans has issued a

* Severe Thunderstorm Warning for...
  Southeastern Walthall County in southern Mississippi...

* Until 1015 PM CDT.

* At 1002 PM CDT, a severe thunderstorm was located near Kokomo,
  moving northeast at 55 mph.

  HAZARD...60 mph wind gusts and quarter size hail.

  SOURCE...Radar indicated.

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees.

* Locations impacted include...
  Tylertown and Dexter. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 400 AM CDT for southern
Mississippi.

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3123 9003 3118 9003 3117 9000 3114 9000
      3113 8994 3107 8992 3107 8984 3101 8984
      3101 9017 3118 9015 3125 9004
TIME...MOT...LOC 0302Z 240DEG 49KT 3114 9002 

HAIL...1.00IN
WIND...60MPH
 
$$

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 23, 8:17 PM CDTSpecial Weather StatementLIXPike, Walthall28 min
Apr 23, 8:47 PM CDTSpecial Weather StatementLIXWilkinson28 min
Apr 23, 9:20 PM CDTRiver Flood WarningLIXPike, Walthall70 hr
Apr 23, 9:28 PM CDTSevere Thunderstorm WarningLIXPike, Walthall47 min
Apr 23, 11:46 PM CDTSevere Thunderstorm WarningLIXWalthall44 min
Apr 24, 12:28 AM CDTSevere Thunderstorm WarningLIXPearl River47 min
Apr 24, 1:16 AM CDTSpecial Weather StatementLIXAmite, Pike59 min
Apr 24, 1:26 AM CDTSevere Thunderstorm WarningLIXAmite, Pike, Walthall, Wilkinson49 min
Apr 24, 1:41 AM CDTSpecial Weather StatementLIXPearl River34 min
Apr 24, 2:35 AM CDTSpecial Weather StatementLIXAmite, Pike40 min
Apr 24, 3:00 AM CDTSpecial Weather StatementLIXPearl River60 min
Apr 24, 3:42 AM CDTSevere Thunderstorm WarningLIXPearl River18 min
Apr 24, 3:59 AM CDTSpecial Weather StatementLIXHancock, Harrison61 min
Apr 24, 4:30 AM CDTSpecial Weather StatementLIXHancock, Harrison75 min
Apr 24, 4:53 AM CDTSevere Thunderstorm WarningLIXJackson52 min
Apr 24, 11:13 AM CDTRiver Flood WarningLIXPearl River46 hr

Nearby

Severe Thunderstorm Warnings in Mississippi, 2021Every severe thunderstorm warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive.