Alert archive / Mississippi / Special Weather Statements in 2021

Special Weather Statement, NWS Mobile, AL

August 15, 2021Greene County, Perry County, Mississippi

NWS Mobile, AL issued this special weather statement at Aug 15, 2021, 3:00 PM CDT for Greene County, Perry County, Mississippi. It was in force for 45 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 15, 2021, 3:00 PM CDT (20:00 UTC)
Expired: Aug 15, 2021, 3:45 PM CDT
In force: 45 min
Issued by: NWS Mobile, AL
Hail: 0.00 in
Wind: 40

Counties Greene County, MS, Perry County, MS

The radar

The Mobile radar (KMOB), 85 km from the middle of the area, began a volume at 20:03 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, 8.0 hours before the alert went out and 129 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: 735 J/kg
Mixed-layer CIN: -61 J/kg
Mixed-layer LCL: 968 m above ground
0-6 km bulk shear: 6 kt
0-1 km storm-relative helicity: -5 m²/s²
0-3 km storm-relative helicity: -20 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

525 
WWUS84 KMOB 152000
SPSMOB

Special Weather Statement
National Weather Service Mobile AL
300 PM CDT Sun Aug 15 2021
 
MSZ075-076-152045-
Perry MS-Greene MS-
300 PM CDT Sun Aug 15 2021

...Strong thunderstorms will impact portions of Perry and Greene
Counties through 345 PM CDT...

At 259 PM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from 4 miles west of Leakesville to 6 miles
southwest of McLain. Movement was northwest at 15 mph.

HAZARD...Winds in excess of 40 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around 
         unsecured objects.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building. 

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

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

&&

LAT...LON 3142 8915 3143 8911 3143 8900 3125 8851
      3120 8844 3100 8880 3100 8883 3097 8883
      3093 8891 3102 8915
TIME...MOT...LOC 1959Z 127DEG 15KT 3118 8863 3105 8892 

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH

$$

MM

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 14, 7:03 PM CDT	Special Marine Warning	MOB		87 min
Aug 14, 8:01 PM CDT	Special Weather Statement	MOB	Butler	44 min
Aug 15, 2:54 AM CDT	Flash Flood Watch	MOB	Covington, Crenshaw	36 hr
Aug 15, 5:18 AM CDT	Coastal Flood Advisory	MOB	Baldwin, Mobile	41 hr
Aug 15, 10:17 AM CDT	Tropical Storm Warning	MOB	Covington	36 hr
Aug 15, 10:48 AM CDT	Small Craft Advisory	MOB		35 hr
Aug 15, 1:30 PM CDT	Special Marine Warning	MOB		60 min
Aug 15, 1:55 PM CDT	Special Weather Statement	MOB	Clarke	50 min
Aug 15, 2:49 PM CDT	Special Marine Warning	MOB		31 min
Aug 15, 3:53 PM CDT	Special Weather Statement	MOB	Mobile	52 min
Aug 15, 5:50 PM CDT	Special Weather Statement	MOB	Clarke	40 min
Aug 15, 6:26 PM CDT	Special Weather Statement	MOB	Clarke, Wilcox	49 min
Aug 15, 6:32 PM CDT	Areal Flood Advisory	MOB	Clarke, Monroe	3 hr
Aug 15, 5:18 AM CDT	High Surf Warning	MOB	Escambia, Okaloosa, Santa Rosa	35 hr
Aug 15, 2:37 PM CDT	Special Weather Statement	MOB	Okaloosa	38 min
Aug 15, 3:26 PM CDT	Special Weather Statement	MOB	Santa Rosa	49 min
Aug 15, 3:16 PM CDT	Special Weather Statement	MOB	Stone	44 min
Aug 15, 3:57 PM CDT	Areal Flood Advisory	MOB	Perry, Stone	3 hr

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.