Alert archive / Mississippi / Special Weather Statements in 2020

Special Weather Statement, NWS Mobile, AL

August 12, 2020George County, Perry County, Mississippi

NWS Mobile, AL issued this special weather statement at Aug 12, 2020, 5:21 PM CDT for George County, Perry County, Mississippi. It was in force for 39 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: Aug 12, 2020, 5:21 PM CDT (22:21 UTC)
Expired: Aug 12, 2020, 6:00 PM CDT
In force: 39 min
Issued by: NWS Mobile, AL

Counties George County, MS, Perry County, MS

The radar

The Mobile radar (KMOB), 79 km from the middle of the area, began a volume at 22:23 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, 10.4 hours before the alert went out and 123 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 2468 J/kg
Mixed-layer CIN: -16 J/kg
Mixed-layer LCL: 701 m above ground
0-6 km bulk shear: 14 kt
0-1 km storm-relative helicity: 4 m²/s²
0-3 km storm-relative helicity: -16 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

785 
WWUS84 KMOB 122221
SPSMOB

Special Weather Statement
National Weather Service Mobile AL
521 PM CDT Wed Aug 12 2020
 
MSZ075-076-078-079-122300-
Stone MS-Perry MS-Greene MS-George MS-
521 PM CDT Wed Aug 12 2020

...A LINE OF STRONG THUNDERSTORMS WILL AFFECT THE FOLLOWING
COUNTIES...NORTHERN GEORGE...PERRY...SOUTHERN GREENE AND NORTHEASTERN
STONE COUNTIES UNTIL 600 PM CDT...

At 521 PM CDT, the strong thunderstorms were located along a line
extending from 3 miles north of Brooklyn to 7 miles northeast of
Maxie to 12 miles northeast of Wiggins to Lucedale, and moving north
at 25 mph.

Wind gusts of 40 to 50 mph will be possible with these storms.

Locations impacted include...
Lucedale, Leakesville, Beaumont, New Augusta and McLain. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3136 8915 3124 8895 3119 8848 3084 8847
      3086 8891 3095 8914
TIME...MOT...LOC 2221Z 170DEG 20KT 3111 8917 3102 8908 3093 8894 3092
8858

$$

Black

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 11, 7:00 PM CDT	Special Marine Warning	MOB		90 min
Aug 11, 7:11 PM CDT	Special Weather Statement	MOB	Mobile	64 min
Aug 11, 7:25 PM CDT	Severe Thunderstorm Warning	MOB	Baldwin, Mobile	50 min
Aug 11, 7:59 PM CDT	Special Marine Warning	MOB		91 min
Aug 11, 8:21 PM CDT	Areal Flood Advisory	MOB	Baldwin, Clarke, Washington	3 hr
Aug 11, 8:36 PM CDT	Special Weather Statement	MOB	Choctaw	54 min
Aug 11, 8:57 PM CDT	Severe Thunderstorm Warning	MOB	Choctaw	51 min
Aug 11, 9:19 PM CDT	Special Marine Warning	MOB		86 min
Aug 11, 11:08 PM CDT	Special Marine Warning	MOB		49 min
Aug 12, 9:45 AM CDT	Special Marine Warning	MOB		45 min
Aug 12, 5:42 PM CDT	Special Weather Statement	MOB	Washington	33 min
Aug 12, 6:24 PM CDT	Special Weather Statement	MOB	Washington	36 min
Aug 12, 6:55 PM CDT	Special Weather Statement	MOB	Washington	50 min
Aug 12, 6:57 PM CDT	Areal Flood Advisory	MOB	Washington	3 hr
Aug 11, 7:51 PM CDT	Special Weather Statement	MOB	George	69 min
Aug 12, 2:24 PM CDT	Special Weather Statement	MOB	Perry	36 min
Aug 12, 3:10 PM CDT	Special Weather Statement	MOB	Perry	35 min
Aug 12, 4:23 PM CDT	Special Weather Statement	MOB	Stone	52 min
Aug 12, 4:46 PM CDT	Special Weather Statement	MOB	Stone	44 min

Nearby

Special Weather Statements in Mississippi, 2020 Every special weather statement in 2020

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.