Alert archive / Alabama / Special Weather Statements in 2021

Special Weather Statement, NWS Mobile, AL

July 31, 2021Escambia County, Alabama

NWS Mobile, AL issued this special weather statement at Jul 31, 2021, 7:24 PM CDT for Escambia County, Alabama. It was in force for 66 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 31, 2021, 7:24 PM CDT (00:24 UTC)
Expired
Jul 31, 2021, 8:30 PM CDT
In force
66 min
Issued by
NWS Mobile, AL

County Escambia County, AL

The radar

The Mobile radar (KMOB), 105 km from the middle of the area, began a volume at 00:25 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 00:00Z, 0.4 hours before the alert went out and 225 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 00:00Z on 2021-08-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 225 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 00:00Z on 2021-08-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -12 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
225 J/kg
Mixed-layer CIN
-242 J/kg
Mixed-layer LCL
1705 m above ground
0-6 km bulk shear
12 kt
0-1 km storm-relative helicity
-12 m²/s²
0-3 km storm-relative helicity
-44 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

920 
WWUS84 KMOB 010024
SPSMOB

Special Weather Statement
National Weather Service Mobile AL
724 PM CDT Sat Jul 31 2021
 
ALZ056-059-010130-
Conecuh AL-Escambia AL-
724 PM CDT Sat Jul 31 2021

...A STRONG THUNDERSTORM WILL AFFECT THE FOLLOWING COUNTIES...CENTRAL
ESCAMBIA AND SOUTHWESTERN CONECUH COUNTIES UNTIL 830 PM CDT...

At 724 PM CDT, the strong thunderstorm was located 4 miles north of
Brewton, moving southeast at 10 mph.

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

Locations impacted include...
Brewton, East Brewton, Pollard, Riverview and I65 And AL 113. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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 3100 8709 3100 8712 3124 8760 3123 8755
      3125 8752 3125 8751 3126 8748 3126 8743
      3128 8742 3132 8736 3133 8735 3139 8720
      3118 8684
TIME...MOT...LOC 0024Z 307DEG 8KT 3116 8705 

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 31, 7:04 PM CDTSpecial Marine WarningMOB86 min
Jul 31, 7:43 PM CDTSpecial Marine WarningMOB92 min
Jul 31, 8:10 PM CDTSpecial Weather StatementMOBEscambia65 min
Jul 31, 10:22 PM CDTSpecial Marine WarningMOB57 min
Jul 31, 11:18 PM CDTSpecial Marine WarningMOB47 min
Jul 31, 11:58 PM CDTSpecial Marine WarningMOB46 min
Aug 1, 6:14 PM CDTSevere Thunderstorm WarningMOBBaldwin, Mobile26 min
Jul 31, 7:00 PM CDTSpecial Weather StatementMOBSanta Rosa45 min
Jul 31, 7:14 PM CDTSpecial Weather StatementMOBOkaloosa61 min
Jul 31, 8:16 PM CDTSpecial Weather StatementMOBEscambia44 min
Jul 31, 8:27 PM CDTSpecial Weather StatementMOBSanta Rosa48 min
Jul 31, 9:18 PM CDTSpecial Weather StatementMOBSanta Rosa57 min
Jul 31, 9:40 PM CDTAreal Flood AdvisoryMOBOkaloosa2 hr
Aug 1, 3:31 PM CDTSpecial Weather StatementMOBJackson44 min
Aug 1, 3:51 PM CDTSpecial Weather StatementMOBPerry39 min
Aug 1, 4:26 PM CDTSevere Thunderstorm WarningMOBGeorge, Perry, Stone18 min
Aug 1, 4:39 PM CDTSpecial Weather StatementMOBWayne51 min
Aug 1, 4:48 PM CDTSpecial Weather StatementMOBStone57 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.