Alert archive / Mississippi / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 20, NWS Mobile, AL
NWS Mobile, AL issued this severe thunderstorm warning at Mar 17, 2021, 8:22 PM CDT for Perry County, Stone County, Mississippi. It was in force for 38 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, 8:22 PM CDT (01:22 UTC)
- Expired
- Mar 17, 2021, 9:00 PM CDT
- In force
- 38 min
- Issued by
- NWS Mobile, AL
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Perry County, MS, Stone County, MS
The radar
The Mobile radar (KMOB), 90 km from the middle of the area, began a volume at 01:25 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, 6:48 PM CDT | Tornado Watch | SPC | 8 hr |
The nearest sounding before it
Slidell Radar S, LA (KSIL), launched 00:00Z, 1.4 hours before the alert went out and 84 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.
190
WUUS54 KMOB 180122
SVRMOB
MSC111-131-180200-
/O.NEW.KMOB.SV.W.0020.210318T0122Z-210318T0200Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mobile AL
822 PM CDT Wed Mar 17 2021
The National Weather Service in Mobile has issued a
* Severe Thunderstorm Warning for...
Southwestern Perry County in southeastern Mississippi...
Stone County in southeastern Mississippi...
* Until 900 PM CDT.
* At 821 PM CDT, a severe thunderstorm was located 11 miles southeast
of Poplarville, moving northeast at 50 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...
Wiggins, Perkinston, McHenry and Beaumont.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Tornado Watch remains in effect until 300 AM CDT for southeastern
Mississippi.
Large hail, damaging winds, and continuous cloud to ground
lightning is occurring with this storm. Move indoors immediately.
Lightning is one of nature's leading killers. Remember, if you can
hear thunder, you are close enough to be struck by lightning.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 3091 8934 3091 8914 3115 8914 3120 8892
3073 8889 3068 8903 3068 8924 3065 8924
3065 8934
TIME...MOT...LOC 0121Z 229DEG 43KT 3071 8942
HAIL...1.00IN
WIND...60MPH
$$
21/CL1 follow-up statement
349
WWUS54 KMOB 180138
SVSMOB
Severe Weather Statement
National Weather Service Mobile AL
838 PM CDT Wed Mar 17 2021
MSC111-131-180200-
/O.CON.KMOB.SV.W.0020.000000T0000Z-210318T0200Z/
Perry MS-Stone MS-
838 PM CDT Wed Mar 17 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 900 PM CDT
FOR SOUTHWESTERN PERRY AND STONE COUNTIES...
At 836 PM CDT, a severe thunderstorm was located 5 miles west of
Perkinston, or 8 miles southwest of Wiggins, moving northeast at 45
mph.
HAZARD...70 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect considerable
tree damage. Wind damage is also likely to mobile homes,
roofs, and outbuildings.
Locations impacted include...
Wiggins, Perkinston, McHenry and Beaumont.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Tornado Watch remains in effect until 300 AM CDT for southeastern
Mississippi.
This is a DANGEROUS SITUATION. This storm is capable of producing
widespread wind damage. SEEK SHELTER NOW inside a sturdy structure
and stay away from windows.
Continuous cloud to ground lightning is occurring with this storm.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 3091 8934 3091 8914 3115 8914 3120 8892
3073 8889 3068 8903 3068 8924 3065 8924
3065 8934
TIME...MOT...LOC 0136Z 246DEG 40KT 3076 8923
HAIL...1.00IN
WIND...70MPH
$$
21/CLThe office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 17, 7:10 PM CDT | Severe Thunderstorm Warning | MOB | Greene, Perry, Wayne | 65 min |
| Mar 17, 7:43 PM CDT | Areal Flood Advisory | MOB | George, Greene, Perry, Stone, Wayne | 6 hr |
| Mar 17, 8:07 PM CDT | Special Weather Statement | MOB | Greene, Perry, Stone | 53 min |
| Mar 17, 8:54 PM CDT | Severe Thunderstorm Warning | MOB | George, Greene, Perry, Stone | 28 min |
| Mar 17, 9:17 PM CDT | Areal Flood Advisory | MOB | Perry, Stone | 3 hr |
| Mar 17, 9:27 PM CDT | Special Weather Statement | MOB | George, Greene, Stone | 48 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.