Alert archive / Mississippi / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 72, NWS New Orleans, LA

April 15, 2021Jackson County, Mississippi

NWS New Orleans, LA issued this severe thunderstorm warning at Apr 15, 2021, 4:44 AM CDT for Jackson County, Mississippi. It was in force for 31 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 15, 2021, 4:44 AM CDT (09:44 UTC)
Expired: Apr 15, 2021, 5:15 AM CDT
In force: 31 min
Issued by: NWS New Orleans, LA
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Jackson County, MS

The radar

The Mobile radar (KMOB), 45 km from the middle of the area, began a volume at 09:44 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 00:00Z, 9.7 hours before the alert went out and 111 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: 5 J/kg
Mixed-layer CIN: -620 J/kg
Mixed-layer LCL: 709 m above ground
0-6 km bulk shear: 61 kt
0-1 km storm-relative helicity: 311 m²/s²
0-3 km storm-relative helicity: 272 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

As transmitted.

336 
WUUS54 KLIX 150944
SVRLIX
MSC059-151015-
/O.NEW.KLIX.SV.W.0072.210415T0944Z-210415T1015Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service New Orleans LA
444 AM CDT Thu Apr 15 2021

The National Weather Service in New Orleans has issued a

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

* Until 515 AM CDT.

* At 444 AM CDT, severe thunderstorms were located along a line
  extending from near Hickory Hills to near Gautier to 13 miles
  southwest of Gulf Park Estates, moving east at 30 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...
  Ocean Springs, Moss Point, Escatawpa, Gautier, Helena, Vancleave,
  Hickory Hills and Gulf Park Estates.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Prepare immediately for large hail and damaging winds. People outside
should move immediately to shelter inside a strong building. Stay
away from windows.

To report severe weather, contact your nearest law enforcement
agency. They will send your report to the National Weather Service
office in New Orleans.

&&

LAT...LON 3036 8845 3032 8847 3032 8850 3034 8851
      3034 8857 3037 8859 3036 8860 3037 8862
      3036 8861 3037 8863 3034 8870 3035 8876
      3058 8869 3054 8840 3038 8841 3035 8839
TIME...MOT...LOC 0944Z 289DEG 27KT 3049 8864 3034 8868 3024 8891 

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

PG

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 14, 9:04 PM CDT	River Flood Warning	LIX	Pearl River	4 days
Apr 14, 9:34 PM CDT	Special Weather Statement	LIX	Hancock	71 min
Apr 15, 2:38 AM CDT	Severe Thunderstorm Warning	LIX	Pike	27 min
Apr 15, 2:44 AM CDT	Special Weather Statement	LIX	Pearl River	61 min
Apr 15, 3:04 AM CDT	Severe Thunderstorm Warning	LIX	Jackson	41 min
Apr 15, 3:10 AM CDT	Special Weather Statement	LIX	Walthall	65 min
Apr 15, 3:16 AM CDT	Flash Flood Warning	LIX	Hancock, Harrison	3 hr
Apr 15, 3:26 AM CDT	Special Weather Statement	LIX	George	34 min
Apr 15, 3:35 AM CDT	Flash Flood Warning	LIX	Harrison, Jackson	3 hr
Apr 15, 3:40 AM CDT	Special Weather Statement	LIX	Wilkinson	95 min
Apr 15, 3:49 AM CDT	Severe Thunderstorm Warning	LIX	Jackson	41 min
Apr 15, 3:59 AM CDT	Special Weather Statement	LIX	Wilkinson	76 min
Apr 15, 4:34 AM CDT	Special Weather Statement	LIX	Jackson	56 min
Apr 15, 4:36 AM CDT	Severe Thunderstorm Warning	LIX	Amite, Wilkinson	24 min
Apr 15, 6:40 AM CDT	River Flood Warning	LIX	Pearl River	4 days
Apr 15, 6:44 AM CDT	River Flood Warning	LIX	Pike	33 hr
Apr 15, 7:43 AM CDT	River Flood Warning	LIX	Harrison	51 hr

Nearby

Severe Thunderstorm Warnings in Mississippi, 2021 Every 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; radar from the NEXRAD Level II archive.