Alert archive / Alabama / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 142, NWS Mobile, AL

June 15, 2021Mobile County, Alabama

NWS Mobile, AL issued this severe thunderstorm warning at Jun 15, 2021, 1:48 PM CDT for Mobile County, Alabama. It was in force for 42 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 15, 2021, 1:48 PM CDT (18:48 UTC)
Expired
Jun 15, 2021, 2:30 PM CDT
In force
42 min
Issued by
NWS Mobile, AL
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

County Mobile County, AL

The radar

The Mobile radar (KMOB), 27 km from the middle of the area, began a volume at 18:48 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, 6.8 hours before the alert went out and 147 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, Slidell Radar S, LA at 12:00Z on 2021-06-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2060 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, Slidell Radar S, LA at 12:00Z on 2021-06-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 10 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
2060 J/kg
Mixed-layer CIN
-44 J/kg
Mixed-layer LCL
970 m above ground
0-6 km bulk shear
7 kt
0-1 km storm-relative helicity
10 m²/s²
0-3 km storm-relative helicity
30 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

337 
WUUS54 KMOB 151848
SVRMOB
ALC097-151930-
/O.NEW.KMOB.SV.W.0142.210615T1848Z-210615T1930Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mobile AL
148 PM CDT Tue Jun 15 2021

The National Weather Service in Mobile has issued a

* Severe Thunderstorm Warning for...
  South central Mobile County in southwestern Alabama...

* Until 230 PM CDT.

* At 148 PM CDT, a severe thunderstorm was located 4 miles south of
  Theodore, moving south 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...
  Theodore, Bayou La Batre, Coden and Alabama Port. 

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 3054 8827 3056 8810 3030 8802 3027 8825
TIME...MOT...LOC 1848Z 348DEG 12KT 3048 8815 

HAIL...0.75IN
WIND...60MPH
 
$$
2 follow-up statements
502 
WWUS54 KMOB 151905
SVSMOB

Severe Weather Statement
National Weather Service Mobile AL
205 PM CDT Tue Jun 15 2021

ALC097-151930-
/O.CON.KMOB.SV.W.0142.000000T0000Z-210615T1930Z/
Mobile AL-
205 PM CDT Tue Jun 15 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 230 PM CDT
FOR SOUTH CENTRAL MOBILE COUNTY...

At 205 PM CDT, a severe thunderstorm was located near Bayou La Batre,
moving south 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...
Bayou La Batre, Coden and Alabama Port. 

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 3027 8825 3048 8827 3049 8809 3030 8802
TIME...MOT...LOC 1905Z 000DEG 12KT 3042 8819 

HAIL...0.75IN
WIND...60MPH
 
$$
279 
WWUS54 KMOB 151931
SVSMOB

Severe Weather Statement
National Weather Service Mobile AL
231 PM CDT Tue Jun 15 2021

ALC097-151940-
/O.EXP.KMOB.SV.W.0142.000000T0000Z-210615T1930Z/
Mobile AL-
231 PM CDT Tue Jun 15 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTH CENTRAL MOBILE COUNTY
HAS EXPIRED...
                
The storm which prompted the warning has weakened below severe
limits. Therefore, the warning has been allowed to expire.

LAT...LON 3027 8825 3048 8827 3049 8809 3030 8802
TIME...MOT...LOC 1930Z 348DEG 12KT 3034 8817 

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 15, 1:16 PM CDTSpecial Weather StatementMOBMobile29 min
Jun 15, 1:17 PM CDTSpecial Marine WarningMOB58 min
Jun 15, 1:31 PM CDTSpecial Marine WarningMOB59 min
Jun 15, 1:53 PM CDTSpecial Marine WarningMOB97 min
Jun 15, 2:00 PM CDTSpecial Marine WarningMOB60 min
Jun 15, 2:28 PM CDTSpecial Marine WarningMOB62 min
Jun 15, 2:30 PM CDTSpecial Marine WarningMOB60 min
Jun 15, 2:37 PM CDTSevere Thunderstorm WarningMOBBaldwin38 min
Jun 15, 3:04 PM CDTAreal Flood AdvisoryMOBBaldwin116 min
Jun 15, 3:10 PM CDTSpecial Marine WarningMOB84 min
Jun 15, 4:03 PM CDTSpecial Marine WarningMOB87 min
Jun 15, 5:36 PM CDTSpecial Marine WarningMOB54 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.