Alert archive / Mississippi / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 39, NWS New Orleans, LA

April 10, 2021Hancock County, Harrison County, Mississippi

NWS New Orleans, LA issued this severe thunderstorm warning at Apr 10, 2021, 2:42 AM CDT for Hancock County, Harrison County, Mississippi. It was in force for 33 min. 3 reports 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 10, 2021, 2:42 AM CDT (07:42 UTC)
Expired
Apr 10, 2021, 3:15 AM CDT
In force
33 min
Issued by
NWS New Orleans, LA
Area
Storm-based polygon
Hail
1.5 in
Wind
50.0 mph

Counties Hancock County, MS, Harrison County, MS

What was reported inside it

TimeReportWhereRemark
Apr 10, 2:42 AM CDTTSTM WND DMG8 E Picayune, MSEM REPORTED TREE DOWN AT OLD KILN RD AND NORTH BIENVILLE RD. TIME ESTIMATED BY RADAR.
Apr 10, 2:45 AM CDTTSTM WND DMG3 Ne Kiln, MSEM REPORTED A TREE DOWN ON OLD JOE MORAN RD NE OF KILN. TIME ESTIMATED BY RADAR.
Apr 10, 2:45 AM CDTTSTM WND DMG9 Nne Kiln, MSEM REPORTED TREE DOWN ON STANDARD DEDEAUX RD NE OF KILN. TIME ESTIMATED BY RADAR.

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 10, 12:16 AM CDTTornado WatchSPC7 hr

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 00:00Z, 7.7 hours before the alert went out and 41 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 2021-04-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2977 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 00:00Z on 2021-04-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 243 square meters per square second.193958Sfc1 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
2977 J/kg
Mixed-layer CIN
-20 J/kg
Mixed-layer LCL
599 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
243 m²/s²
0-3 km storm-relative helicity
269 m²/s²
Significant tornado parameter
3.4
Supercell composite
18.1

Open this sounding in Storm Lab

The text

As transmitted.

866 
WUUS54 KLIX 100742
SVRLIX
MSC045-047-100815-
/O.NEW.KLIX.SV.W.0039.210410T0742Z-210410T0815Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service New Orleans LA
242 AM CDT Sat Apr 10 2021

The National Weather Service in New Orleans has issued a

* Severe Thunderstorm Warning for...
  Northwestern Harrison County in southern Mississippi...
  Northern Hancock County in southern Mississippi...

* Until 315 AM CDT.

* At 242 AM CDT, a severe thunderstorm was located 7 miles north of
  Kiln, or 11 miles northwest of Diamondhead, moving northeast at 55
  mph.

  HAZARD...Ping pong ball size hail.

  SOURCE...Radar indicated.

  IMPACT...People and animals outdoors will be injured. Expect 
           damage to roofs, siding, windows, and vehicles.

* Locations impacted include...
  Saucier and Kiln. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 700 AM CDT for southern
Mississippi.

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

&&

LAT...LON 3036 8957 3050 8964 3050 8960 3052 8959
      3052 8954 3057 8954 3065 8942 3065 8925
      3068 8924 3067 8890
TIME...MOT...LOC 0742Z 237DEG 49KT 3052 8947 

HAIL...1.50IN
WIND...<50MPH
 
$$

MEFFER
2 follow-up statements
777 
WWUS54 KLIX 100750
SVSLIX

Severe Weather Statement
National Weather Service New Orleans LA
250 AM CDT Sat Apr 10 2021

MSC045-047-100815-
/O.CON.KLIX.SV.W.0039.000000T0000Z-210410T0815Z/
Harrison MS-Hancock MS-
250 AM CDT Sat Apr 10 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 315 AM CDT
FOR NORTHWESTERN HARRISON AND NORTHEASTERN HANCOCK COUNTIES...

At 250 AM CDT, a severe thunderstorm was located 7 miles north of
Kiln, or 10 miles north of Diamondhead, moving northeast at 50 mph.

HAZARD...Ping pong ball size hail and 40 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...People and animals outdoors will be injured. Expect hail 
         damage to roofs, siding, windows, and vehicles. Expect wind 
         damage to roofs, siding, and trees.

Locations impacted include...
Saucier and Kiln. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 700 AM CDT for southern
Mississippi.

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

&&

LAT...LON 3043 8943 3054 8952 3063 8932 3065 8929
      3065 8925 3068 8924 3067 8890
TIME...MOT...LOC 0750Z 240DEG 44KT 3053 8940 

HAIL...1.50IN
WIND...60MPH
 
$$

MEFFER
959 
WWUS54 KLIX 100804
SVSLIX

Severe Weather Statement
National Weather Service New Orleans LA
304 AM CDT Sat Apr 10 2021

MSC045-100814-
/O.CAN.KLIX.SV.W.0039.000000T0000Z-210410T0815Z/
Hancock MS-
304 AM CDT Sat Apr 10 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN HANCOCK COUNTY IS
CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

A Tornado Watch remains in effect until 700 AM CDT for southern
Mississippi.

LAT...LON 3047 8934 3052 8934 3063 8933 3064 8930
      3065 8924 3068 8924 3067 8890
TIME...MOT...LOC 0804Z 247DEG 44KT 3060 8925 

$$

MSC047-100815-
/O.CON.KLIX.SV.W.0039.000000T0000Z-210410T0815Z/
Harrison MS-
304 AM CDT Sat Apr 10 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 315 AM CDT
FOR NORTHWESTERN HARRISON COUNTY...

At 304 AM CDT, a severe thunderstorm was located near Saucier, or 16
miles northwest of Gulfport, moving east at 50 mph.

HAZARD...Ping pong ball size hail and 40 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...People and animals outdoors will be injured. Expect hail 
         damage to roofs, siding, windows, and vehicles. Expect wind 
         damage to roofs, siding, and trees.

Locations impacted include...
Saucier.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 700 AM CDT for southern
Mississippi.

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

&&

LAT...LON 3047 8934 3052 8934 3063 8933 3064 8930
      3065 8924 3068 8924 3067 8890
TIME...MOT...LOC 0804Z 247DEG 44KT 3060 8925 

HAIL...1.50IN
WIND...60MPH
 
$$

MEFFER

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 9, 11:57 PM CDTSevere Thunderstorm WarningLIXAmite, Pike36 min
Apr 10, 12:12 AM CDTSevere Thunderstorm WarningLIXWalthall33 min
Apr 10, 12:14 AM CDTSpecial Weather StatementLIXWilkinson46 min
Apr 10, 12:41 AM CDTSevere Thunderstorm WarningLIXPearl River11 min
Apr 10, 12:46 AM CDTSevere Thunderstorm WarningLIXAmite, Pike, Walthall43 min
Apr 10, 1:33 AM CDTSpecial Weather StatementLIXPearl River42 min
Apr 10, 1:45 AM CDTTornado WarningLIXWilkinson45 min
Apr 10, 1:52 AM CDTSpecial Weather StatementLIXPearl River38 min
Apr 10, 2:01 AM CDTSevere Thunderstorm WarningLIXPearl River29 min
Apr 10, 2:05 AM CDTTornado WarningLIXPearl River10 min
Apr 10, 2:58 AM CDTSevere Thunderstorm WarningLIXAmite, Pike35 min
Apr 10, 3:11 AM CDTSevere Thunderstorm WarningLIXHarrison, Jackson49 min
Apr 10, 3:20 AM CDTSevere Thunderstorm WarningLIXAmite, Wilkinson33 min
Apr 10, 3:29 AM CDTSevere Thunderstorm WarningLIXHarrison, Jackson31 min
Apr 10, 3:36 AM CDTSpecial Weather StatementLIXPearl River39 min
Apr 10, 3:55 AM CDTSevere Thunderstorm WarningLIXHarrison, Jackson14 min
Apr 10, 4:06 AM CDTFlash Flood WarningLIXHancock, Pearl River3 hr
Apr 10, 5:07 AM CDTSpecial Weather StatementLIXHancock23 min
Apr 10, 5:35 AM CDTSpecial Weather StatementLIXHarrison25 min
Apr 10, 6:02 AM CDTAreal Flood AdvisoryLIXJackson3 hr
Apr 10, 9:49 AM CDTRiver Flood WarningLIXPike, Walthall56 hr
Apr 10, 9:58 AM CDTRiver Flood WarningLIXHarrison25 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.