Alert archive / Mississippi / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 2, NWS Mobile, AL
NWS Mobile, AL issued this severe thunderstorm warning at Feb 11, 2021, 12:26 PM CST for Stone County, Mississippi. It was in force for 34 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, 12:26 PM CST (18:26 UTC)
- Expired
- Feb 11, 2021, 1:00 PM CST
- In force
- 34 min
- Issued by
- NWS Mobile, AL
- Area
- Storm-based polygon
- Tornado
- Possible
- Hail
- 0.75 in
- Wind
- 60.0 mph
County Stone County, MS
The radar
The Mobile radar (KMOB), 88 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 72 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.
866
WUUS54 KMOB 111826
SVRMOB
MSC131-111900-
/O.NEW.KMOB.SV.W.0002.210211T1826Z-210211T1900Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mobile AL
1226 PM CST Thu Feb 11 2021
The National Weather Service in Mobile has issued a
* Severe Thunderstorm Warning for...
Southern Stone County in southeastern Mississippi...
* Until 100 PM CST.
* At 1225 PM CST, a severe thunderstorm was located 9 miles west of
Saucier, or 16 miles north of Diamondhead, moving east at 40 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
McHenry.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3076 8900 3068 8896 3068 8924 3065 8924
3065 8934 3070 8934
TIME...MOT...LOC 1825Z 259DEG 34KT 3061 8929
TORNADO...POSSIBLE
HAIL...<.75IN
WIND...60MPH
$$2 follow-up statements
570 WWUS54 KMOB 111843 SVSMOB Severe Weather Statement National Weather Service Mobile AL 1243 PM CST Thu Feb 11 2021 MSC131-111900- /O.CON.KMOB.SV.W.0002.000000T0000Z-210211T1900Z/ Stone MS- 1243 PM CST Thu Feb 11 2021 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 100 PM CST FOR SOUTHEASTERN STONE COUNTY... At 1242 PM CST, a severe thunderstorm was located over Saucier, or 15 miles south of Wiggins, moving east at 40 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. Locations impacted include... McHenry. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 3076 8900 3068 8896 3068 8924 3072 8922 TIME...MOT...LOC 1842Z 259DEG 34KT 3064 8910 TORNADO...POSSIBLE HAIL...<.75IN WIND...60MPH $$
689
WWUS54 KMOB 111850
SVSMOB
Severe Weather Statement
National Weather Service Mobile AL
1250 PM CST Thu Feb 11 2021
MSC131-111900-
/O.EXP.KMOB.SV.W.0002.000000T0000Z-210211T1900Z/
Stone MS-
1250 PM CST Thu Feb 11 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN STONE 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 gusty
winds and heavy rain are still possible with this thunderstorm.
LAT...LON 3076 8900 3068 8896 3068 8924 3072 8922
TIME...MOT...LOC 1850Z 259DEG 34KT 3065 8903
$$The office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 11, 5:18 AM CST | Special Weather Statement | MOB | George | 42 min |
| Feb 11, 5:29 AM CST | Severe Thunderstorm Warning | MOB | George, Greene | 46 min |
| Feb 11, 6:42 AM CST | Special Weather Statement | MOB | Greene | 48 min |
| Feb 11, 10:23 AM CST | Special Weather Statement | MOB | Greene, Perry | 52 min |
| Feb 11, 11:12 AM CST | Special Weather Statement | MOB | Greene, Wayne | 48 min |
| Feb 11, 12:12 PM CST | Special Weather Statement | MOB | Stone | 48 min |
| Feb 11, 12:48 PM CST | Special Weather Statement | MOB | Stone | 57 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.