Alert archive / Alabama / Special Weather Statements in 2021

Special Weather Statement, NWS Mobile, AL

July 23, 2021Clarke County, Monroe County, Alabama

NWS Mobile, AL issued this special weather statement at Jul 23, 2021, 3:14 PM CDT for Clarke County, Monroe County, Alabama. It was in force for 46 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 23, 2021, 3:14 PM CDT (20:14 UTC)
Expired
Jul 23, 2021, 4:00 PM CDT
In force
46 min
Issued by
NWS Mobile, AL

Counties Clarke County, AL, Monroe County, AL

The radar

The Mobile radar (KMOB), 104 km from the middle of the area, began a volume at 20:16 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

Birmingham, AL (KBMX), launched 12:00Z, 8.2 hours before the alert went out and 208 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, Birmingham, AL at 12:00Z on 2021-07-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1133 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, Birmingham, AL at 12:00Z on 2021-07-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 7 square meters per square second.193958Sfc1 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
1133 J/kg
Mixed-layer CIN
-23 J/kg
Mixed-layer LCL
596 m above ground
0-6 km bulk shear
11 kt
0-1 km storm-relative helicity
7 m²/s²
0-3 km storm-relative helicity
-3 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

160 
WWUS84 KMOB 232014
SPSMOB

Special Weather Statement
National Weather Service Mobile AL
314 PM CDT Fri Jul 23 2021
 
ALZ053-055-232100-
Clarke AL-Monroe AL-
314 PM CDT Fri Jul 23 2021

...A LINE OF STRONG THUNDERSTORMS WILL AFFECT THE FOLLOWING
COUNTIES...CENTRAL MONROE AND CENTRAL CLARKE COUNTIES UNTIL 400 PM
CDT...

At 314 PM CDT, the strong thunderstorms were located along a line
extending from 8 miles east of Fulton to 7 miles southeast of
Coffeeville, and moving southeast at 15 mph.

Dime size hail and wind gusts of 40 to 50 mph will be possible with
these storms.

Locations impacted include...
Monroeville, Jackson, Grove Hill and Whatley. 

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.

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 3153 8725 3143 8792 3144 8793 3145 8791
      3147 8792 3150 8791 3150 8792 3153 8794
      3153 8797 3155 8801 3157 8802 3158 8802
      3158 8803 3166 8808 3171 8809 3183 8748
TIME...MOT...LOC 2014Z 320DEG 12KT 3175 8758 3168 8799 

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 22, 8:36 PM CDTSpecial Weather StatementMOBWilcox39 min
Jul 22, 9:05 PM CDTSpecial Weather StatementMOBButler40 min
Jul 23, 3:33 PM CDTSpecial Weather StatementMOBBaldwin42 min
Jul 23, 4:05 PM CDTSpecial Weather StatementMOBMobile40 min
Jul 23, 5:30 PM CDTSpecial Weather StatementMOBWashington30 min
Jul 23, 5:41 PM CDTSpecial Weather StatementMOBBaldwin49 min
Jul 23, 5:47 PM CDTSevere Thunderstorm WarningMOBBaldwin43 min
Jul 23, 6:09 PM CDTSpecial Weather StatementMOBBaldwin51 min
Jul 23, 6:28 PM CDTSpecial Marine WarningMOB80 min
Jul 23, 6:43 PM CDTSpecial Weather StatementMOBBaldwin32 min
Jul 23, 4:42 PM CDTSpecial Weather StatementMOBWayne48 min
Jul 23, 5:35 PM CDTSpecial Weather StatementMOBPerry40 min

Nearby

Special 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.