Alert archive / Alabama / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 181, NWS Mobile, AL

August 1, 2021Wilcox County, Alabama

NWS Mobile, AL issued this severe thunderstorm warning at Aug 1, 2021, 9:51 PM CDT for Wilcox County, Alabama. It was in force for 31 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 1, 2021, 9:51 PM CDT (02:51 UTC)
Expired
Aug 1, 2021, 10:22 PM CDT
In force
31 min
Issued by
NWS Mobile, AL
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

County Wilcox County, AL

The radar

The Birmingham radar (KBMX), 128 km from the middle of the area, began a volume at 02:53 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, 2.9 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-pSkew-T log-p diagram, Birmingham, AL at 00:00Z on 2021-08-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 941 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Birmingham, AL at 00:00Z on 2021-08-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 6 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
941 J/kg
Mixed-layer CIN
-57 J/kg
Mixed-layer LCL
1260 m above ground
0-6 km bulk shear
15 kt
0-1 km storm-relative helicity
6 m²/s²
0-3 km storm-relative helicity
15 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

408 
WUUS54 KMOB 020251
SVRMOB
ALC131-020345-
/O.NEW.KMOB.SV.W.0181.210802T0251Z-210802T0345Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mobile AL
951 PM CDT Sun Aug 1 2021

The National Weather Service in Mobile has issued a

* Severe Thunderstorm Warning for...
  Central Wilcox County in south central Alabama...

* Until 1045 PM CDT.

* At 951 PM CDT, a severe thunderstorm was located 7 miles northwest
  of Camden, moving east at 20 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...Expect damage to roofs, siding, and trees.

* Locations impacted include...
  Camden.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3214 8728 3214 8725 3212 8726 3208 8719
      3205 8718 3205 8697 3189 8697 3197 8746
      3217 8743 3219 8732
TIME...MOT...LOC 0251Z 271DEG 18KT 3209 8734 

HAIL...<.75IN
WIND...60MPH
 
$$
1 follow-up statement
503 
WWUS54 KMOB 020322
SVSMOB

Severe Weather Statement
National Weather Service Mobile AL
1022 PM CDT Sun Aug 1 2021

ALC131-020332-
/O.CAN.KMOB.SV.W.0181.000000T0000Z-210802T0345Z/
Wilcox AL-
1022 PM CDT Sun Aug 1 2021

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL WILCOX COUNTY IS
CANCELLED...
                
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning has been cancelled.  However gusty winds and
heavy rain are still possible with this thunderstorm.

LAT...LON 3214 8728 3214 8725 3212 8726 3208 8719
      3205 8718 3205 8697 3189 8697 3197 8746
      3217 8743 3219 8732
TIME...MOT...LOC 0320Z 271DEG 18KT 3209 8716 

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 1, 7:03 PM CDTSpecial Weather StatementMOBChoctaw42 min
Aug 1, 8:12 PM CDTSpecial Weather StatementMOBConecuh63 min
Aug 1, 8:17 PM CDTSpecial Weather StatementMOBChoctaw43 min
Aug 1, 8:39 PM CDTSevere Thunderstorm WarningMOBChoctaw51 min
Aug 1, 8:50 PM CDTSpecial Weather StatementMOBWilcox55 min
Aug 1, 9:02 PM CDTSpecial Weather StatementMOBChoctaw43 min
Aug 1, 9:06 PM CDTAreal Flood AdvisoryMOBChoctaw3 hr
Aug 1, 9:18 PM CDTSevere Thunderstorm WarningMOBConecuh57 min
Aug 1, 9:35 PM CDTFlash Flood WarningMOBChoctaw6 hr
Aug 1, 10:21 PM CDTSpecial Weather StatementMOBWilcox54 min
Aug 1, 10:39 PM CDTSpecial Weather StatementMOBMonroe51 min
Aug 1, 10:40 PM CDTSpecial Weather StatementMOBConecuh65 min
Aug 2, 2:23 PM CDTSpecial Weather StatementMOBConecuh37 min
Aug 2, 2:59 PM CDTSpecial Weather StatementMOBMobile46 min
Aug 2, 3:04 PM CDTSpecial Weather StatementMOBEscambia26 min
Aug 2, 3:10 PM CDTAreal Flood AdvisoryMOBMobile2 hr
Aug 2, 3:29 PM CDTSpecial Weather StatementMOBCrenshaw31 min
Aug 2, 3:32 PM CDTSpecial Marine WarningMOB43 min
Aug 2, 3:42 PM CDTSpecial Weather StatementMOBMobile48 min
Aug 2, 3:47 PM CDTSpecial Weather StatementMOBCrenshaw43 min
Aug 2, 4:32 PM CDTAreal Flood AdvisoryMOBCovington118 min
Aug 2, 5:37 PM CDTSpecial Marine WarningMOB83 min

Nearby

Severe Thunderstorm Warnings in Alabama, 2021Every severe thunderstorm warning 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.