Alert archive / Alabama / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 169, NWS Mobile, AL

July 23, 2021Baldwin County, Alabama

NWS Mobile, AL issued this severe thunderstorm warning at Jul 23, 2021, 5:47 PM CDT for Baldwin County, Alabama. It was in force for 43 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 23, 2021, 5:47 PM CDT (22:47 UTC)
Expired: Jul 23, 2021, 6:30 PM CDT
In force: 43 min
Issued by: NWS Mobile, AL
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

County Baldwin County, AL

The radar

The Mobile radar (KMOB), 62 km from the middle of the area, began a volume at 22:48 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

Slidell Radar S, LA (KSIL), launched 12:00Z, 10.8 hours before the alert went out and 197 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: 2181 J/kg
Mixed-layer CIN: -10 J/kg
Mixed-layer LCL: 678 m above ground
0-6 km bulk shear: 16 kt
0-1 km storm-relative helicity: 46 m²/s²
0-3 km storm-relative helicity: 61 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

964 
WUUS54 KMOB 232247
SVRMOB
ALC003-232330-
/O.NEW.KMOB.SV.W.0169.210723T2247Z-210723T2330Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mobile AL
547 PM CDT Fri Jul 23 2021

The National Weather Service in Mobile has issued a

* Severe Thunderstorm Warning for...
  Southeastern Baldwin County in southwestern Alabama...

* Until 630 PM CDT.

* At 547 PM CDT, a severe thunderstorm was located over Summerdale,
  or 5 miles southeast of Robertsdale, moving southeast at 15 mph.

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

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Foley, Summerdale and Elberta. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Large hail and damaging winds and continuous cloud to ground
lightning is occurring with this storm. Move indoors immediately.
Lightning is one of nature's leading killers. Remember, if you can
hear thunder, you are close enough to be struck by lightning.

&&

LAT...LON 3050 8777 3056 8761 3039 8746 3027 8767
TIME...MOT...LOC 2247Z 331DEG 12KT 3049 8768 

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

2 follow-up statements

460 
WWUS54 KMOB 232304
SVSMOB

Severe Weather Statement
National Weather Service Mobile AL
604 PM CDT Fri Jul 23 2021

ALC003-232330-
/O.CON.KMOB.SV.W.0169.000000T0000Z-210723T2330Z/
Baldwin AL-
604 PM CDT Fri Jul 23 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 630 PM CDT
FOR SOUTHEASTERN BALDWIN COUNTY...

At 603 PM CDT, a severe thunderstorm was located near Foley, moving
southeast at 15 mph.

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

SOURCE...Radar indicated.

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

Locations impacted include...
Foley and Elberta. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Continuous cloud to ground lightning is occurring with this storm.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.

&&

LAT...LON 3046 8775 3050 8759 3039 8746 3027 8767
TIME...MOT...LOC 2303Z 331DEG 12KT 3044 8765 

HAIL...0.88IN
WIND...60MPH
 
$$

909 
WWUS54 KMOB 232321
SVSMOB

Severe Weather Statement
National Weather Service Mobile AL
621 PM CDT Fri Jul 23 2021

ALC003-232331-
/O.EXP.KMOB.SV.W.0169.000000T0000Z-210723T2330Z/
Baldwin AL-
621 PM CDT Fri Jul 23 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN BALDWIN COUNTY
WILL EXPIRE AT 630 PM CDT...
                
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 will be allowed to expire.

LAT...LON 3046 8775 3050 8759 3039 8746 3027 8767
TIME...MOT...LOC 2321Z 331DEG 12KT 3039 8762 

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 22, 8:36 PM CDT	Special Weather Statement	MOB	Wilcox	39 min
Jul 22, 9:05 PM CDT	Special Weather Statement	MOB	Butler	40 min
Jul 23, 3:14 PM CDT	Special Weather Statement	MOB	Clarke, Monroe	46 min
Jul 23, 3:33 PM CDT	Special Weather Statement	MOB	Baldwin	42 min
Jul 23, 4:05 PM CDT	Special Weather Statement	MOB	Mobile	40 min
Jul 23, 5:30 PM CDT	Special Weather Statement	MOB	Washington	30 min
Jul 23, 5:41 PM CDT	Special Weather Statement	MOB	Baldwin	49 min
Jul 23, 6:09 PM CDT	Special Weather Statement	MOB	Baldwin	51 min
Jul 23, 6:28 PM CDT	Special Marine Warning	MOB		80 min
Jul 23, 6:43 PM CDT	Special Weather Statement	MOB	Baldwin	32 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.