Alert archive / Mississippi / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 96, NWS New Orleans, LA

May 10, 2021Hancock County, Mississippi

NWS New Orleans, LA issued this severe thunderstorm warning at May 10, 2021, 4:05 AM CDT for Hancock County, Mississippi. It was in force for 25 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
May 10, 2021, 4:05 AM CDT (09:05 UTC)
Expired
May 10, 2021, 4:30 AM CDT
In force
25 min
Issued by
NWS New Orleans, LA
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

County Hancock County, MS

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 00:00Z, 9.1 hours before the alert went out and 22 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 2021-05-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 186 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 2021-05-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 74 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
186 J/kg
Mixed-layer CIN
-87 J/kg
Mixed-layer LCL
1292 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
74 m²/s²
0-3 km storm-relative helicity
128 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.2

Open this sounding in Storm Lab

The text

As transmitted.

830 
WUUS54 KLIX 100905
SVRLIX
MSC045-100930-
/O.NEW.KLIX.SV.W.0096.210510T0905Z-210510T0930Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service New Orleans LA
405 AM CDT Mon May 10 2021

The National Weather Service in New Orleans has issued a

* Severe Thunderstorm Warning for...
  Southern Hancock County in southern Mississippi...

* Until 430 AM CDT.

* At 404 AM CDT, a severe thunderstorm was located near Pearlington,
  or 8 miles west of Waveland, moving east at 40 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...Expect damage to roofs, siding, and trees.

* Locations impacted include...
  Bay St. Louis, Waveland, Pearlington and Shoreline Park. 

This includes Interstate 10 in Mississippi between mile markers 3 and
7.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3025 8942 3023 8942 3020 8945 3018 8945
      3019 8949 3018 8953 3020 8954 3018 8957
      3023 8962 3033 8961 3034 8933 3031 8933
TIME...MOT...LOC 0904Z 276DEG 34KT 3024 8952 

HAIL...<.75IN
WIND...60MPH
 
$$

The office that day

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

IssuedProductOfficeCountiesLasted
May 9, 8:48 PM CDTFlash Flood WatchLIXAmite, Pearl River, Pike, Walthall, Wilkinson15 hr
May 10, 3:25 AM CDTSpecial Weather StatementLIXHancock35 min
May 10, 6:06 AM CDTSpecial Weather StatementLIXWilkinson54 min

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; the sounding from the Mesonet's radiosonde archive.