Alert archive / Mississippi / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 8, NWS New Orleans, LA
NWS New Orleans, LA issued this severe thunderstorm warning at Mar 17, 2021, 9:54 PM CDT for Harrison County, Jackson County, Mississippi. It was in force for 51 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
- Mar 17, 2021, 9:54 PM CDT (02:54 UTC)
- Expired
- Mar 17, 2021, 10:45 PM CDT
- In force
- 51 min
- Issued by
- NWS New Orleans, LA
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Harrison County, MS, Jackson County, MS
The radar
The Mobile radar (KMOB), 78 km from the middle of the area, began a volume at 02:54 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Mar 17, 2:38 PM CDT | Tornado Watch | SPC | 8 hr |
The nearest sounding before it
Slidell Radar S, LA (KSIL), launched 00:00Z, 2.9 hours before the alert went out and 70 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.
- Mixed-layer CAPE
- 1681 J/kg
- Mixed-layer CIN
- -1 J/kg
- Mixed-layer LCL
- 710 m above ground
- 0-6 km bulk shear
- 63 kt
- 0-1 km storm-relative helicity
- 171 m²/s²
- 0-3 km storm-relative helicity
- 168 m²/s²
- Significant tornado parameter
- 2.4
- Supercell composite
- 9.7
The text
As transmitted.
002
WUUS54 KLIX 180254
SVRLIX
MSC047-059-180345-
/O.NEW.KLIX.SV.W.0008.210318T0254Z-210318T0345Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service New Orleans LA
954 PM CDT Wed Mar 17 2021
The National Weather Service in New Orleans has issued a
* Severe Thunderstorm Warning for...
Central Harrison County in southeastern Mississippi...
Northwestern Jackson County in southern Mississippi...
* Until 1045 PM CDT.
* At 954 PM CDT, a severe thunderstorm was located near Long Beach,
moving northeast at 45 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
Gulfport, Biloxi, Ocean Springs, Long Beach, St. Martin, Escatawpa,
D'iberville, Latimer, Lyman, Gulf Hills, Vancleave, Hickory Hills
and Gulfport Airport.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Tornado Watch remains in effect until 1100 PM CDT for southern and
southeastern Mississippi.
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3041 8884 3042 8884 3043 8899 3042 8901
3041 8899 3042 8895 3041 8886 3038 8907
3036 8909 3031 8928 3036 8928 3037 8930
3041 8932 3073 8871 3049 8856
TIME...MOT...LOC 0254Z 240DEG 39KT 3033 8922
HAIL...<.75IN
WIND...60MPH
$$
MEFFER3 follow-up statements
197
WWUS54 KLIX 180317
SVSLIX
Severe Weather Statement
National Weather Service New Orleans LA
1017 PM CDT Wed Mar 17 2021
MSC047-059-180345-
/O.CON.KLIX.SV.W.0008.000000T0000Z-210318T0345Z/
Harrison MS-Jackson MS-
1017 PM CDT Wed Mar 17 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1045 PM CDT
FOR SOUTHEASTERN HARRISON AND NORTHWESTERN JACKSON COUNTIES...
At 1017 PM CDT, a severe thunderstorm was located over Biloxi, moving
northeast at 45 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Gulfport, Biloxi, Ocean Springs, Long Beach, St. Martin, Escatawpa,
D'iberville, Latimer, Gulf Hills, Vancleave, Hickory Hills and
Gulfport Airport.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Tornado Watch remains in effect until 1100 PM CDT for southern and
southeastern Mississippi.
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3041 8884 3042 8884 3043 8899 3042 8901
3041 8899 3042 8895 3041 8886 3038 8907
3035 8912 3035 8914 3041 8918 3056 8899
3073 8871 3049 8856
TIME...MOT...LOC 0317Z 240DEG 39KT 3045 8897
HAIL...<.75IN
WIND...60MPH
$$
MEFFER910
WWUS54 KLIX 180329
SVSLIX
Severe Weather Statement
National Weather Service New Orleans LA
1029 PM CDT Wed Mar 17 2021
MSC047-059-180345-
/O.CON.KLIX.SV.W.0008.000000T0000Z-210318T0345Z/
Harrison MS-Jackson MS-
1029 PM CDT Wed Mar 17 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1045 PM CDT
FOR EAST CENTRAL HARRISON AND NORTHWESTERN JACKSON COUNTIES...
At 1029 PM CDT, a severe thunderstorm was located over Latimer, or
near St. Martin, moving northeast at 45 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Gulfport, Biloxi, Ocean Springs, St. Martin, Escatawpa, D'iberville,
Latimer, Gulf Hills, Vancleave and Hickory Hills.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Tornado Watch remains in effect until 1100 PM CDT for southern and
southeastern Mississippi.
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3041 8884 3042 8884 3043 8899 3042 8901
3041 8899 3042 8895 3041 8886 3039 8902
3048 8900 3069 8868 3049 8856
TIME...MOT...LOC 0329Z 240DEG 39KT 3052 8884
HAIL...<.75IN
WIND...60MPH
$$
MEFFER840
WWUS54 KLIX 180336
SVSLIX
Severe Weather Statement
National Weather Service New Orleans LA
1036 PM CDT Wed Mar 17 2021
MSC047-059-180345-
/O.EXP.KLIX.SV.W.0008.000000T0000Z-210318T0345Z/
Harrison MS-Jackson MS-
1036 PM CDT Wed Mar 17 2021
...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL HARRISON AND
NORTHWESTERN JACKSON COUNTIES WILL EXPIRE AT 1045 PM CDT...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire.
A Tornado Watch remains in effect until 1100 PM CDT for southern and
southeastern Mississippi.
LAT...LON 3041 8884 3042 8884 3043 8899 3042 8901
3041 8899 3042 8895 3041 8886 3039 8902
3048 8900 3069 8868 3049 8856
TIME...MOT...LOC 0335Z 240DEG 39KT 3055 8878
$$
MEFFERThe office that day
Everything else NWS New Orleans, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 17, 8:00 PM CDT | Special Weather Statement | LIX | Hancock, Pearl River | 45 min |
| Mar 17, 8:20 PM CDT | Severe Thunderstorm Warning | LIX | Hancock, Harrison, Pearl River | 26 min |
| Mar 17, 8:49 PM CDT | Special Weather Statement | LIX | Hancock | 26 min |
| Mar 17, 9:17 PM CDT | Special Weather Statement | LIX | Hancock, Harrison | 58 min |
| Mar 17, 10:38 PM CDT | Special Weather Statement | LIX | Jackson | 67 min |
| Mar 18, 10:35 AM CDT | River Flood Warning | LIX | Hancock, Pearl River | 60 days |
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; radar from the NEXRAD Level II archive.