Alert archive / Mississippi / Special Weather Statements in 2021

Special Weather Statement, NWS Mobile, AL

July 19, 2021Stone County, Mississippi

NWS Mobile, AL issued this special weather statement at Jul 19, 2021, 3:01 PM CDT for Stone County, Mississippi. It was in force for 44 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 19, 2021, 3:01 PM CDT (20:01 UTC)
Expired
Jul 19, 2021, 3:45 PM CDT
In force
44 min
Issued by
NWS Mobile, AL

County Stone County, MS

The radar

The Mobile radar (KMOB), 85 km from the middle of the area, began a volume at 20:04 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 95 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 2021-07-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1729 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 2021-07-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 36 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
1729 J/kg
Mixed-layer CIN
-5 J/kg
Mixed-layer LCL
762 m above ground
0-6 km bulk shear
15 kt
0-1 km storm-relative helicity
36 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.

466 
WWUS84 KMOB 192001
SPSMOB

Special Weather Statement
National Weather Service Mobile AL
301 PM CDT Mon Jul 19 2021
 
MSZ075-078-192045-
Stone MS-Perry MS-
301 PM CDT Mon Jul 19 2021

...A STRONG THUNDERSTORM WILL AFFECT THE FOLLOWING COUNTIES...
SOUTHERN PERRY AND NORTHERN STONE COUNTIES UNTIL 345 PM CDT...

At 300 PM CDT, the strong thunderstorm was located 7 miles southwest
of Maxie, or 9 miles west of Wiggins, moving east at 30 mph.

Wind gusts of 40 to 50 mph will be possible with this storm.

Locations impacted include...
Wiggins.

LAT...LON 3091 8934 3091 8914 3103 8914 3110 8884
      3091 8883 3091 8889 3083 8889 3079 8934
TIME...MOT...LOC 2000Z 259DEG 27KT 3090 8928 

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 19, 7:43 AM CDTAreal Flood AdvisoryMOBChoctaw3 hr
Jul 19, 1:29 PM CDTSpecial Weather StatementMOBEscambia46 min
Jul 19, 2:05 PM CDTSpecial Weather StatementMOBMobile40 min
Jul 19, 2:24 PM CDTAreal Flood AdvisoryMOBBaldwin, Mobile4 hr
Jul 19, 2:39 PM CDTSpecial Weather StatementMOBBaldwin51 min
Jul 19, 2:40 PM CDTSpecial Marine WarningMOB35 min
Jul 19, 3:22 PM CDTAreal Flood AdvisoryMOBBaldwin3 hr
Jul 19, 5:03 PM CDTAreal Flood AdvisoryMOBClarke, Conecuh, Monroe, Washington3 hr
Jul 19, 5:17 PM CDTSpecial Weather StatementMOBConecuh, Monroe43 min
Jul 19, 5:26 PM CDTSpecial Marine WarningMOB49 min
Jul 19, 1:47 PM CDTSpecial Weather StatementMOBSanta Rosa43 min
Jul 19, 2:25 PM CDTAreal Flood AdvisoryMOBSanta Rosa3 hr
Jul 19, 6:24 AM CDTRiver Flood WarningMOBGeorge, Greene, Wayne10 days
Jul 19, 2:27 PM CDTSpecial Weather StatementMOBPerry33 min
Jul 19, 3:06 PM CDTAreal Flood AdvisoryMOBGeorge, Greene, Perry, Stone2 hr
Jul 19, 4:02 PM CDTAreal Flood AdvisoryMOBGeorge117 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.