Alert archive / Mississippi / Special Weather Statements in 2021

Special Weather Statement, NWS Mobile, AL

July 24, 2021Perry County, Mississippi

NWS Mobile, AL issued this special weather statement at Jul 24, 2021, 2:25 PM CDT for Perry 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
Jul 24, 2021, 2:25 PM CDT (19:25 UTC)
Expired
Jul 24, 2021, 3:00 PM CDT
In force
35 min
Issued by
NWS Mobile, AL

County Perry County, MS

The radar

The Mobile radar (KMOB), 75 km from the middle of the area, began a volume at 19:28 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, 7.4 hours before the alert went out and 119 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-pSkew-T log-p diagram, Slidell Radar S, LA at 12:00Z on 2021-07-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2304 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Slidell Radar S, LA at 12:00Z on 2021-07-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 8 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
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
2304 J/kg
Mixed-layer CIN
-23 J/kg
Mixed-layer LCL
834 m above ground
0-6 km bulk shear
15 kt
0-1 km storm-relative helicity
8 m²/s²
0-3 km storm-relative helicity
23 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.4

Open this sounding in Storm Lab

The text

As transmitted.

564 
WWUS84 KMOB 241925
SPSMOB

Special Weather Statement
National Weather Service Mobile AL
225 PM CDT Sat Jul 24 2021
 
MSZ075-242000-
Perry MS-
225 PM CDT Sat Jul 24 2021

...A STRONG THUNDERSTORM WILL AFFECT THE FOLLOWING COUNTIES...
SOUTHEASTERN PERRY COUNTY UNTIL 300 PM CDT...

At 225 PM CDT, the strong thunderstorm was located over McLain, or 17
miles west of Leakesville, moving southwest at 10 mph.

Half inch hail and wind gusts of 40 to 50 mph will be possible with
this storm.

This storm will remain over mainly rural areas of southeastern Perry
County.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Torrential rainfall is also occurring with this storm, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

&&

LAT...LON 3115 8886 3113 8884 3100 8884 3092 8887
      3102 8905
TIME...MOT...LOC 1925Z 035DEG 11KT 3110 8885 

$$

The office that day

Everything else NWS Mobile, AL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 23, 7:01 PM CDTSpecial Weather StatementMOBCovington44 min
Jul 24, 3:13 PM CDTSpecial Weather StatementMOBMobile32 min
Jul 24, 5:49 PM CDTSpecial Weather StatementMOBBaldwin26 min
Jul 24, 2:30 PM CDTSpecial Weather StatementMOBEscambia45 min
Jul 24, 2:04 PM CDTSpecial Weather StatementMOBGreene41 min
Jul 24, 2:38 PM CDTSpecial Weather StatementMOBPerry52 min
Jul 24, 2:53 PM CDTSpecial Weather StatementMOBGeorge37 min
Jul 24, 3:14 PM CDTSpecial Weather StatementMOBGeorge16 min
Jul 24, 5:21 PM CDTSpecial Weather StatementMOBStone39 min

Nearby

Special Weather Statements in Mississippi, 2021Every special weather statement 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.