Alert archive / Mississippi / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 2, NWS New Orleans, LA
NWS New Orleans, LA issued this severe thunderstorm warning at Feb 11, 2021, 12:25 PM CST for Harrison County, Mississippi. It was in force for 35 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
- Feb 11, 2021, 12:25 PM CST (18:25 UTC)
- Expired
- Feb 11, 2021, 1:00 PM CST
- In force
- 35 min
- Issued by
- NWS New Orleans, LA
- Area
- Storm-based polygon
- Tornado
- Possible
- Hail
- 0.75 in
- Wind
- 60.0 mph
County Harrison County, MS
The radar
The Mobile radar (KMOB), 97 km from the middle of the area, began a volume at 18:29 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 12:00Z, 6.4 hours before the alert went out and 59 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
- 1397 J/kg
- Mixed-layer CIN
- -21 J/kg
- Mixed-layer LCL
- 571 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 140 m²/s²
- 0-3 km storm-relative helicity
- 182 m²/s²
- Significant tornado parameter
- 1.0
- Supercell composite
- 7.5
The text
As transmitted.
509
WUUS54 KLIX 111825
SVRLIX
MSC047-111900-
/O.NEW.KLIX.SV.W.0002.210211T1825Z-210211T1900Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service New Orleans LA
1225 PM CST Thu Feb 11 2021
The National Weather Service in New Orleans has issued a
* Severe Thunderstorm Warning for...
Northwestern Harrison County in southeastern Mississippi...
* Until 100 PM CST.
* At 1224 PM CST, a severe thunderstorm was located 10 miles west of
Saucier, or 17 miles north of Diamondhead, moving northeast at 30
mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
Saucier.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 3055 8932 3059 8934 3065 8934 3065 8925
3068 8924 3067 8896
TIME...MOT...LOC 1824Z 243DEG 25KT 3063 8932
TORNADO...POSSIBLE
HAIL...<.75IN
WIND...60MPH
$$
KLG2 follow-up statements
365 WWUS54 KLIX 111844 SVSLIX Severe Weather Statement National Weather Service New Orleans LA 1244 PM CST Thu Feb 11 2021 MSC047-111900- /O.CON.KLIX.SV.W.0002.000000T0000Z-210211T1900Z/ Harrison MS- 1244 PM CST Thu Feb 11 2021 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 100 PM CST FOR NORTH CENTRAL HARRISON COUNTY... At 1244 PM CST, a severe thunderstorm was located over McHenry, or 11 miles south of Wiggins, moving northeast at 30 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. Locations impacted include... Saucier. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. Torrential rainfall is occurring with this storm, and may lead to flash flooding. Do not drive your vehicle through flooded roadways. && LAT...LON 3060 8917 3061 8921 3068 8924 3067 8896 TIME...MOT...LOC 1844Z 243DEG 25KT 3070 8917 TORNADO...POSSIBLE HAIL...<.75IN WIND...60MPH $$ KLG
557
WWUS54 KLIX 111852
SVSLIX
Severe Weather Statement
National Weather Service New Orleans LA
1252 PM CST Thu Feb 11 2021
MSC047-111901-
/O.EXP.KLIX.SV.W.0002.000000T0000Z-210211T1900Z/
Harrison MS-
1252 PM CST Thu Feb 11 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL HARRISON COUNTY
WILL EXPIRE AT 100 PM CST...
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. However heavy rain
is still possible with this thunderstorm.
LAT...LON 3060 8917 3061 8921 3068 8924 3067 8896
TIME...MOT...LOC 1851Z 243DEG 25KT 3072 8912
$$
KLGThe office that day
Everything else NWS New Orleans, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 11, 1:19 AM CST | Special Weather Statement | LIX | Amite | 41 min |
| Feb 11, 9:10 AM CST | Tornado Warning | LIX | Pearl River, Walthall | 28 min |
| Feb 11, 9:35 AM CST | Areal Flood Advisory | LIX | Pike | 3 hr |
| Feb 11, 10:27 AM CST | Areal Flood Advisory | LIX | Pike, Walthall | 3 hr |
| Feb 11, 11:06 AM CST | Areal Flood Advisory | LIX | Pearl River | 2 hr |
| Feb 11, 11:26 AM CST | River Flood Warning | LIX | Hancock, Pearl River | 19 days |
| Feb 11, 11:26 AM CST | River Flood Warning | LIX | Pike, Walthall | 32 hr |
| Feb 11, 11:26 AM CST | River Flood Warning | LIX | Hancock, Pearl River | 4 days |
| Feb 11, 11:50 AM CST | Special Weather Statement | LIX | Pearl River | 55 min |
| Feb 11, 12:37 PM CST | Special Weather Statement | LIX | Harrison | 23 min |
| Feb 11, 1:03 PM CST | Special Weather Statement | LIX | Jackson | 87 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; radar from the NEXRAD Level II archive.