Alert archive / Alabama / Special Weather Statements in 2021

Special Weather Statement, NWS Mobile, AL

July 27, 2021Choctaw County, Alabama

NWS Mobile, AL issued this special weather statement at Jul 27, 2021, 8:06 PM CDT for Choctaw County, Alabama. It was in force for 39 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 27, 2021, 8:06 PM CDT (01:06 UTC)
Expired
Jul 27, 2021, 8:45 PM CDT
In force
39 min
Issued by
NWS Mobile, AL

County Choctaw County, AL

The radar

The Birmingham radar (KBMX), 159 km from the middle of the area, began a volume at 01:05 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, 1.1 hours before the alert went out and 159 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 2021-07-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 144 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 2021-07-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -24 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
144 J/kg
Mixed-layer CIN
-238 J/kg
Mixed-layer LCL
1293 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
-24 m²/s²
0-3 km storm-relative helicity
-16 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

423 
WWUS84 KMOB 280106
SPSMOB

Special Weather Statement
National Weather Service Mobile AL
806 PM CDT Tue Jul 27 2021
 
ALZ051-280145-
Choctaw AL-
806 PM CDT Tue Jul 27 2021

...STRONG THUNDERSTORMS WILL AFFECT THE FOLLOWING COUNTIES...
NORTHERN CHOCTAW COUNTY UNTIL 845 PM CDT...

At 804 PM CDT, strong thunderstorms were located along a line
extending from 6 miles northeast of Lisman to 3 miles north of
Pennington. These storms were moving very slowly to the southwest 
at 5 mph. 

Wind gusts up to around 40 mph will be possible with these storms.

Locations impacted include...
Lisman and Pennington. 

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 3231 8795 3230 8796 3230 8800 3228 8801
      3228 8802 3227 8802 3226 8801 3218 8801
      3215 8802 3214 8804 3209 8805 3217 8841
      3231 8839
TIME...MOT...LOC 0104Z 358DEG 3KT 3225 8821 3226 8803 

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 27, 8:26 PM CDTAreal Flood AdvisoryMOBChoctaw3 hr
Jul 27, 9:49 PM CDTSpecial Weather StatementMOBWashington41 min
Jul 27, 10:12 PM CDTAreal Flood AdvisoryMOBMobile, Washington3 hr
Jul 28, 2:13 AM CDTHeat AdvisoryMOBButler, Choctaw, Clarke, Conecuh, Covington, Crenshaw and 4 more16 hr
Jul 28, 1:46 PM CDTHeat AdvisoryMOBBaldwin, Butler, Choctaw, Clarke, Conecuh, Covington and 6 more44 hr
Jul 28, 1:46 PM CDTHeat AdvisoryMOBBaldwin, Butler, Choctaw, Clarke, Conecuh, Covington and 6 more4 days
Jul 28, 4:37 PM CDTSpecial Weather StatementMOBCovington38 min
Jul 28, 5:16 PM CDTAreal Flood AdvisoryMOBCovington3 hr
Jul 28, 5:16 PM CDTSpecial Weather StatementMOBCovington44 min
Jul 28, 5:29 PM CDTAreal Flood AdvisoryMOBConecuh, Covington3 hr
Jul 28, 5:34 PM CDTSpecial Weather StatementMOBMobile41 min
Jul 28, 5:39 PM CDTAreal Flood AdvisoryMOBCovington, Escambia3 hr
Jul 28, 6:24 PM CDTSpecial Weather StatementMOBEscambia51 min
Jul 28, 6:26 PM CDTSpecial Weather StatementMOBBaldwin49 min
Jul 28, 6:48 PM CDTAreal Flood AdvisoryMOBEscambia3 hr
Jul 28, 6:54 PM CDTSpecial Weather StatementMOBEscambia51 min
Jul 28, 3:21 PM CDTSpecial Weather StatementMOBOkaloosa39 min
Jul 28, 3:27 PM CDTSpecial Weather StatementMOBSanta Rosa48 min
Jul 28, 3:37 PM CDTSevere Thunderstorm WarningMOBOkaloosa, Santa Rosa23 min
Jul 28, 3:55 PM CDTSpecial Weather StatementMOBOkaloosa50 min
Jul 28, 3:58 PM CDTSevere Thunderstorm WarningMOBSanta Rosa32 min
Jul 28, 4:08 PM CDTAreal Flood AdvisoryMOBOkaloosa14 min
Jul 28, 4:22 PM CDTFlash Flood WarningMOBOkaloosa5 hr
Jul 28, 4:32 PM CDTSpecial Weather StatementMOBSanta Rosa43 min
Jul 28, 4:33 PM CDTAreal Flood AdvisoryMOBSanta Rosa3 hr
Jul 27, 11:00 PM CDTSpecial Weather StatementMOBGreene45 min
Jul 27, 11:21 PM CDTAreal Flood AdvisoryMOBGreene, Perry, Wayne3 hr
Jul 27, 11:48 PM CDTSpecial Weather StatementMOBGeorge, Perry57 min
Jul 28, 5:56 PM CDTSpecial Weather StatementMOBPerry34 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.