Alert archive / Mississippi / Special Weather Statements in 2021

Special Weather Statement, NWS Mobile, AL

September 1, 2021Washington County, Alabama; George County, Greene County, Perry County, Mississippi

NWS Mobile, AL issued this special weather statement at Sep 1, 2021, 8:19 PM CDT for Washington County, Alabama; George County, Greene County, Perry County, Mississippi. It was in force for 41 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
Sep 1, 2021, 8:19 PM CDT (01:19 UTC)
Expired
Sep 1, 2021, 9:00 PM CDT
In force
41 min
Issued by
NWS Mobile, AL
Hail
0.00 in
Wind
40

Counties Washington County, AL, George County, MS, Greene County, MS, Perry County, MS

The radar

The Mobile radar (KMOB), 37 km from the middle of the area, began a volume at 01:21 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 00:00Z, 1.3 hours before the alert went out and 172 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 00:00Z on 2021-09-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1372 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 00:00Z on 2021-09-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -22 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
1372 J/kg
Mixed-layer CIN
-90 J/kg
Mixed-layer LCL
1055 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
-22 m²/s²
0-3 km storm-relative helicity
-1 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.6

Open this sounding in Storm Lab

The text

As transmitted.

751 
WWUS84 KMOB 020119
SPSMOB

Special Weather Statement
National Weather Service Mobile AL
819 PM CDT Wed Sep 1 2021
 
ALZ052-053-055-059-261>264-FLZ201-MSZ067-075-076-078-079-020200-
Clarke AL-Monroe AL-Mobile Inland AL-Baldwin Central AL-
Baldwin Inland AL-Escambia AL-Washington AL-Mobile Central AL-
Escambia Inland FL-Stone MS-Perry MS-Greene MS-Wayne MS-George MS-
819 PM CDT Wed Sep 1 2021

...Strong thunderstorms will impact portions of southwestern Monroe,
northern Mobile, northern Baldwin, Washington, south central Clarke,
western Escambia, northwestern Escambia, George, Perry, southern
Wayne, Greene and northeastern Stone Counties through 900 PM CDT...

At 818 PM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from 9 miles southeast of Mill Creek to 5 miles east
of McCullough. Movement was south at 10 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...
Prichard, Saraland, Bay Minette, Atmore, Chickasaw, Satsuma,
Citronelle, Lucedale, Creola, Chatom, Richton, Leakesville,
Chunchula, Stockton, McCullough, Stapleton, Wagarville, Clara,
Gulfcrest and Deer Park.

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 3092 8914 3143 8915 3143 8894 3165 8894
      3133 8735 3126 8743 3126 8735 3119 8734
      3115 8739 3060 8730 3072 8791 3075 8792
      3071 8795 3072 8801 3077 8800 3072 8802
      3075 8804 3073 8805 3091 8916
TIME...MOT...LOC 0118Z 015DEG 9KT 3158 8887 3120 8743 

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

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 1, 7:03 PM CDTFlash Flood WarningMOBClarke, Wilcox4 hr
Sep 1, 7:21 PM CDTSpecial Weather StatementMOBEscambia54 min
Sep 1, 7:31 PM CDTSpecial Weather StatementMOBWashington44 min
Sep 1, 7:35 PM CDTSevere Thunderstorm WarningMOBEscambia40 min
Sep 1, 7:45 PM CDTAreal Flood AdvisoryMOBCovington, Escambia3 hr
Sep 1, 8:14 PM CDTSpecial Weather StatementMOBEscambia46 min
Sep 1, 9:06 PM CDTAreal Flood AdvisoryMOBBaldwin, Clarke, Escambia, Monroe3 hr
Sep 1, 9:12 PM CDTSpecial Weather StatementMOBBaldwin63 min
Sep 1, 7:34 PM CDTSevere Thunderstorm WarningMOBWayne41 min

Nearby

Special Weather Statements in Mississippi, 2021Special Weather Statements in Alabama, 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.