Alert archive / Alabama / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 142, NWS Mobile, AL

July 24, 2012Baldwin County, Alabama

NWS Mobile, AL issued this severe thunderstorm warning at Jul 24, 2012, 3:10 PM CDT for Baldwin County, Alabama. It was in force for 65 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 24, 2012, 3:10 PM CDT (20:10 UTC)
Expired: Jul 24, 2012, 4:15 PM CDT
In force: 65 min
Issued by: NWS Mobile, AL
Area: Storm-based polygon

County Baldwin County, AL

The radar

The Mobile radar (KMOB), 35 km from the middle of the area, began a volume at 20:12 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, 8.2 hours before the alert went out and 177 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: 2043 J/kg
Mixed-layer CIN: -23 J/kg
Mixed-layer LCL: 789 m above ground
0-6 km bulk shear: 11 kt
0-1 km storm-relative helicity: -24 m²/s²
0-3 km storm-relative helicity: -35 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

209 
WUUS54 KMOB 242010
SVRMOB
ALC003-242115-
/O.NEW.KMOB.SV.W.0142.120724T2010Z-120724T2115Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
310 PM CDT TUE JUL 24 2012

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WEST CENTRAL BALDWIN COUNTY IN SOUTHWEST ALABAMA...

* UNTIL 415 PM CDT

* AT 308 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING
  WINDS OVER 60 MPH WAS LOCATED 3 MILES NORTHEAST OF DAPHNE...OR 8
  MILES NORTHWEST OF SILVERHILL...AND MOVING SOUTHWEST AT 5 MPH.

* LOCATIONS IMPACTED INCLUDE...
  SPANISH FORT...       LOXLEY...             FAIRHOPE...
  DAPHNE...

THIS INCLUDES INTERSTATE 10 BETWEEN MILE MARKERS 34 AND 44.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

CONTINUOUS CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM.
MOVE INDOORS IMMEDIATELY! IF YOU CAN HEAR THUNDER...YOU ARE CLOSE
ENOUGH TO BE STRUCK BY LIGHTNING.

&&

LAT...LON 3048 8792 3052 8793 3054 8791 3057 8791
      3058 8792 3062 8792 3065 8794 3072 8795
      3073 8777 3055 8774
TIME...MOT...LOC 2010Z 117DEG 3KT 3063 8785

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 24, 2:07 PM CDT	Special Marine Warning	MOB		83 min
Jul 24, 3:14 PM CDT	Areal Flood Advisory	MOB	Baldwin	2 hr
Jul 24, 3:20 PM CDT	Special Marine Warning	MOB		85 min
Jul 24, 3:27 PM CDT	Special Marine Warning	MOB		93 min
Jul 24, 4:21 PM CDT	Special Marine Warning	MOB		54 min
Jul 24, 4:36 PM CDT	Special Marine Warning	MOB		84 min

Nearby

Severe Thunderstorm Warnings in Alabama, 2012 Every severe thunderstorm warning in 2012

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.