Alert archive / Mississippi / Special Weather Statements in 2021

Special Weather Statement, NWS Mobile, AL

July 28, 2021Perry County, Mississippi

NWS Mobile, AL issued this special weather statement at Jul 28, 2021, 5:56 PM CDT for Perry 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: Jul 28, 2021, 5:56 PM CDT (22:56 UTC)
Expired: Jul 28, 2021, 6:30 PM CDT
In force: 34 min
Issued by: NWS Mobile, AL

County Perry County, MS

The radar

The Mobile radar (KMOB), 103 km from the middle of the area, began a volume at 22:56 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, 10.9 hours before the alert went out and 124 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: 2097 J/kg
Mixed-layer CIN: -16 J/kg
Mixed-layer LCL: 738 m above ground
0-6 km bulk shear: 4 kt
0-1 km storm-relative helicity: -23 m²/s²
0-3 km storm-relative helicity: 22 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

537 
WWUS84 KMOB 282256
SPSMOB

Special Weather Statement
National Weather Service Mobile AL
556 PM CDT Wed Jul 28 2021
 
MSZ075-282330-
Perry MS-
556 PM CDT Wed Jul 28 2021

...A STRONG THUNDERSTORM WILL AFFECT THE FOLLOWING COUNTIES...WEST
CENTRAL PERRY COUNTY UNTIL 630 PM CDT...

At 555 PM CDT, the strong thunderstorm was located near New Augusta,
or 12 miles southwest of Richton, moving south at 10 mph.

Wind gusts in excess of 40 mph will be possible with this storm.

Locations impacted include...
New Augusta.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 3133 8914 3127 8900 3108 8903 3112 8914
      3131 8915
TIME...MOT...LOC 2255Z 015DEG 10KT 3123 8909 

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 27, 8:06 PM CDT	Special Weather Statement	MOB	Choctaw	39 min
Jul 27, 8:26 PM CDT	Areal Flood Advisory	MOB	Choctaw	3 hr
Jul 27, 9:49 PM CDT	Special Weather Statement	MOB	Washington	41 min
Jul 27, 10:12 PM CDT	Areal Flood Advisory	MOB	Mobile, Washington	3 hr
Jul 28, 2:13 AM CDT	Heat Advisory	MOB	Butler, Choctaw, Clarke, Conecuh, Covington, Crenshaw and 4 more	16 hr
Jul 28, 1:46 PM CDT	Heat Advisory	MOB	Baldwin, Butler, Choctaw, Clarke, Conecuh, Covington and 6 more	44 hr
Jul 28, 1:46 PM CDT	Heat Advisory	MOB	Baldwin, Butler, Choctaw, Clarke, Conecuh, Covington and 6 more	4 days
Jul 28, 4:37 PM CDT	Special Weather Statement	MOB	Covington	38 min
Jul 28, 5:16 PM CDT	Areal Flood Advisory	MOB	Covington	3 hr
Jul 28, 5:16 PM CDT	Special Weather Statement	MOB	Covington	44 min
Jul 28, 5:29 PM CDT	Areal Flood Advisory	MOB	Conecuh, Covington	3 hr
Jul 28, 5:34 PM CDT	Special Weather Statement	MOB	Mobile	41 min
Jul 28, 5:39 PM CDT	Areal Flood Advisory	MOB	Covington, Escambia	3 hr
Jul 28, 6:24 PM CDT	Special Weather Statement	MOB	Escambia	51 min
Jul 28, 6:26 PM CDT	Special Weather Statement	MOB	Baldwin	49 min
Jul 28, 6:48 PM CDT	Areal Flood Advisory	MOB	Escambia	3 hr
Jul 28, 6:54 PM CDT	Special Weather Statement	MOB	Escambia	51 min
Jul 28, 3:21 PM CDT	Special Weather Statement	MOB	Okaloosa	39 min
Jul 28, 3:27 PM CDT	Special Weather Statement	MOB	Santa Rosa	48 min
Jul 28, 3:37 PM CDT	Severe Thunderstorm Warning	MOB	Okaloosa, Santa Rosa	23 min
Jul 28, 3:55 PM CDT	Special Weather Statement	MOB	Okaloosa	50 min
Jul 28, 3:58 PM CDT	Severe Thunderstorm Warning	MOB	Santa Rosa	32 min
Jul 28, 4:08 PM CDT	Areal Flood Advisory	MOB	Okaloosa	14 min
Jul 28, 4:22 PM CDT	Flash Flood Warning	MOB	Okaloosa	5 hr
Jul 28, 4:32 PM CDT	Special Weather Statement	MOB	Santa Rosa	43 min
Jul 28, 4:33 PM CDT	Areal Flood Advisory	MOB	Santa Rosa	3 hr
Jul 27, 11:00 PM CDT	Special Weather Statement	MOB	Greene	45 min
Jul 27, 11:21 PM CDT	Areal Flood Advisory	MOB	Greene, Perry, Wayne	3 hr
Jul 27, 11:48 PM CDT	Special Weather Statement	MOB	George, Perry	57 min

Nearby

Special Weather Statements in Mississippi, 2021 Every 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.