Alert archive / Alabama / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 157, NWS Mobile, AL

June 24, 20214 counties in Alabama

NWS Mobile, AL issued this severe thunderstorm warning at Jun 24, 2021, 6:45 PM CDT for 4 counties in Alabama. It was in force for 60 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 24, 2021, 6:45 PM CDT (23:45 UTC)
Expired: Jun 24, 2021, 7:45 PM CDT
In force: 60 min
Issued by: NWS Mobile, AL
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Baldwin County, AL, Conecuh County, AL, Escambia County, AL, Monroe County, AL

The radar

The Mobile radar (KMOB), 104 km from the middle of the area, began a volume at 23:45 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 231 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1166 J/kg
Mixed-layer CIN: -55 J/kg
Mixed-layer LCL: 693 m above ground
0-6 km bulk shear: 14 kt
0-1 km storm-relative helicity: 24 m²/s²
0-3 km storm-relative helicity: 155 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 3.5

Open this sounding in Storm Lab

The text

As transmitted.

873 
WUUS54 KMOB 242345
SVRMOB
ALC003-035-053-099-250045-
/O.NEW.KMOB.SV.W.0157.210624T2345Z-210625T0045Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mobile AL
645 PM CDT Thu Jun 24 2021

The National Weather Service in Mobile has issued a

* Severe Thunderstorm Warning for...
  Southwestern Monroe County in south central Alabama...
  North central Baldwin County in southwestern Alabama...
  Western Escambia County in south central Alabama...
  Southwestern Conecuh County in south central Alabama...

* Until 745 PM CDT.

* At 644 PM CDT, severe thunderstorms were located along a line
  extending from 3 miles southwest of Excel to 6 miles south of
  Castleberry, moving southwest at 15 mph.

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

  SOURCE...Radar indicated.

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees.

* Locations impacted include...
  Brewton, Flomaton, Frisco City, McCullough, East Brewton, Uriah,
  Excel, Pollard, I65 And AL 113 and I65 And AL 21.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

These storms are producing large hail. Quarter size hail has been 
reported. SEEK SHELTER NOW inside a sturdy structure and stay away 
from windows!

&&

LAT...LON 3100 8713 3100 8736 3123 8781 3145 8738
      3123 8696
TIME...MOT...LOC 2344Z 050DEG 12KT 3137 8737 3120 8703 

HAIL...1.00IN
WIND...60MPH
 
$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 23, 7:07 PM CDT	Special Weather Statement	MOB	Conecuh	38 min
Jun 23, 7:35 PM CDT	Severe Thunderstorm Warning	MOB	Conecuh, Covington, Escambia	40 min
Jun 23, 8:02 PM CDT	Severe Thunderstorm Warning	MOB	Covington, Crenshaw	30 min
Jun 24, 1:02 PM CDT	Special Weather Statement	MOB	Mobile	43 min
Jun 24, 1:30 PM CDT	Special Marine Warning	MOB		90 min
Jun 24, 2:07 PM CDT	Areal Flood Advisory	MOB	Mobile	3 hr
Jun 24, 2:11 PM CDT	Special Marine Warning	MOB		94 min
Jun 24, 2:52 PM CDT	Areal Flood Advisory	MOB	Baldwin	3 hr
Jun 24, 3:35 PM CDT	Special Weather Statement	MOB	Baldwin	40 min
Jun 24, 3:46 PM CDT	Special Marine Warning	MOB		44 min
Jun 24, 3:59 PM CDT	Special Weather Statement	MOB	Baldwin	46 min
Jun 24, 4:13 PM CDT	Special Weather Statement	MOB	Baldwin	47 min
Jun 24, 4:16 PM CDT	Areal Flood Advisory	MOB	Baldwin	3 hr
Jun 24, 4:31 PM CDT	Severe Thunderstorm Warning	MOB	Baldwin, Mobile	13 min
Jun 24, 5:16 PM CDT	Special Weather Statement	MOB	Mobile	44 min
Jun 24, 5:22 PM CDT	Special Weather Statement	MOB	Conecuh	53 min
Jun 24, 5:32 PM CDT	Severe Thunderstorm Warning	MOB	Conecuh, Monroe	43 min
Jun 24, 5:56 PM CDT	Areal Flood Advisory	MOB	Mobile, Washington	3 hr
Jun 24, 5:58 PM CDT	Severe Thunderstorm Warning	MOB	Conecuh, Escambia	62 min

Nearby

Severe Thunderstorm Warnings in Alabama, 2021 Every 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.