Alert archive / Alabama / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 129, NWS Mobile, AL

June 7, 2021Butler County, Conecuh County, Monroe County, Alabama

NWS Mobile, AL issued this severe thunderstorm warning at Jun 7, 2021, 6:45 PM CDT for Butler County, Conecuh County, Monroe County, Alabama. It was in force for 45 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
Jun 7, 2021, 6:45 PM CDT (23:45 UTC)
Expired
Jun 7, 2021, 7:30 PM CDT
In force
45 min
Issued by
NWS Mobile, AL
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Butler County, AL, Conecuh County, AL, Monroe County, AL

The radar

The Ft Rucker radar (KEOX), 150 km from the middle of the area, began a volume at 23:49 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, 11.8 hours before the alert went out and 170 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 2021-06-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 81 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 2021-06-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 111 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
81 J/kg
Mixed-layer CIN
-51 J/kg
Mixed-layer LCL
734 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
111 m²/s²
0-3 km storm-relative helicity
115 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.3

Open this sounding in Storm Lab

The text

As transmitted.

207 
WUUS54 KMOB 072345
SVRMOB
ALC013-035-099-080030-
/O.NEW.KMOB.SV.W.0129.210607T2345Z-210608T0030Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mobile AL
645 PM CDT Mon Jun 7 2021

The National Weather Service in Mobile has issued a

* Severe Thunderstorm Warning for...
  West central Butler County in south central Alabama...
  Northeastern Monroe County in south central Alabama...
  North central Conecuh County in south central Alabama...

* Until 730 PM CDT.

* At 645 PM CDT, a severe thunderstorm was located 9 miles east of
  Peterman, or 14 miles northeast of Monroeville, moving north at 20
  mph.

  HAZARD...60 mph wind gusts and penny size hail.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Evergreen, Beatrice and I65 And US 84. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3175 8678 3139 8696 3144 8720 3165 8725
      3183 8717 3183 8703
TIME...MOT...LOC 2345Z 199DEG 18KT 3162 8710 

HAIL...0.75IN
WIND...60MPH
 
$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 6, 7:02 PM CDTAreal Flood AdvisoryMOBBaldwin, Mobile, Washington3 hr
Jun 6, 7:40 PM CDTSpecial Weather StatementMOBBaldwin95 min
Jun 6, 9:05 PM CDTRip Current StatementMOBBaldwin, Mobile4 days
Jun 7, 9:34 AM CDTRiver Flood WarningMOBClarke, Washington21 days
Jun 7, 12:26 PM CDTSpecial Weather StatementMOBCovington49 min
Jun 7, 2:18 PM CDTSpecial Weather StatementMOBCovington42 min
Jun 7, 6:15 PM CDTSpecial Weather StatementMOBChoctaw45 min
Jun 7, 6:36 PM CDTSpecial Weather StatementMOBConecuh39 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.