Alert archive / Alabama / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 132, NWS Mobile, AL

June 16, 2011Baldwin County, Alabama

NWS Mobile, AL issued this severe thunderstorm warning at Jun 16, 2011, 12:38 PM CDT for Baldwin County, Alabama. It was in force for 52 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 16, 2011, 12:38 PM CDT (17:38 UTC)
Expired: Jun 16, 2011, 1:30 PM CDT
In force: 52 min
Issued by: NWS Mobile, AL
Area: Storm-based polygon

County Baldwin County, AL

The radar

The Mobile radar (KMOB), 40 km from the middle of the area, began a volume at 17:40 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, 5.6 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: 3053 J/kg
Mixed-layer CIN: -13 J/kg
Mixed-layer LCL: 700 m above ground
0-6 km bulk shear: 17 kt
0-1 km storm-relative helicity: 17 m²/s²
0-3 km storm-relative helicity: -8 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.

771 
WUUS54 KMOB 161738
SVRMOB
ALC003-161830-
/O.NEW.KMOB.SV.W.0132.110616T1738Z-110616T1830Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
1238 PM CDT THU JUN 16 2011

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CENTRAL BALDWIN COUNTY IN SOUTHWEST ALABAMA...
  THIS INCLUDES THE CITIES OF...ROBERTSDALE...POINT CLEAR...LOXLEY...
  FAIRHOPE...DAPHNE...

* UNTIL 130 PM CDT

* AT 1236 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS
  OF 60 MPH.  THIS STORM WAS LOCATED NEAR LOXLEY...OR NEAR
  SILVERHILL...AND MOVING WEST AT 15 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  SILVERHILL AROUND 1245 PM CDT...
  DAPHNE...JACKSON OAK AND PARK CITY AROUND 110 PM CDT...
  FAIRHOPE AND HOUSTONVILLE AROUND 120 PM CDT...
  POINT CLEAR AROUND 130 PM CDT...

THIS INCLUDES INTERSTATE 10 BETWEEN MILE MARKERS 39 AND 50.

&&

LAT...LON 3042 8792 3046 8794 3047 8793 3048 8794
      3050 8795 3055 8791 3064 8793 3071 8769
      3054 8761 3041 8791
TIME...MOT...LOC 1738Z 068DEG 13KT 3059 8775

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 16, 9:37 AM CDT	Special Marine Warning	MOB		38 min
Jun 16, 10:07 AM CDT	Special Marine Warning	MOB		38 min
Jun 16, 11:45 AM CDT	Severe Thunderstorm Warning	MOB	Baldwin	30 min
Jun 16, 1:21 PM CDT	Severe Thunderstorm Warning	MOB	Mobile	39 min
Jun 16, 1:54 PM CDT	Severe Thunderstorm Warning	MOB	Mobile	32 min
Jun 16, 2:05 PM CDT	Severe Thunderstorm Warning	MOB	Choctaw	25 min
Jun 16, 2:23 PM CDT	Severe Thunderstorm Warning	MOB	Choctaw	52 min
Jun 16, 2:30 PM CDT	Severe Thunderstorm Warning	MOB	Washington	25 min
Jun 16, 2:33 PM CDT	Severe Thunderstorm Warning	MOB	Clarke, Monroe	42 min
Jun 16, 2:36 PM CDT	Severe Thunderstorm Warning	MOB	Mobile	39 min
Jun 16, 3:05 PM CDT	Severe Thunderstorm Warning	MOB	Choctaw	25 min
Jun 16, 3:08 PM CDT	Severe Thunderstorm Warning	MOB	Mobile	22 min
Jun 16, 3:21 PM CDT	Severe Thunderstorm Warning	MOB	Choctaw, Clarke, Washington	24 min
Jun 16, 3:22 PM CDT	Severe Thunderstorm Warning	MOB	Choctaw	23 min
Jun 16, 3:39 PM CDT	Severe Thunderstorm Warning	MOB	Choctaw	51 min
Jun 16, 3:48 PM CDT	Severe Thunderstorm Warning	MOB	Conecuh, Covington, Escambia	42 min
Jun 16, 4:04 PM CDT	Severe Thunderstorm Warning	MOB	Covington	41 min
Jun 16, 4:45 PM CDT	Severe Thunderstorm Warning	MOB	Conecuh	27 min
Jun 16, 4:52 PM CDT	Severe Thunderstorm Warning	MOB	Choctaw	38 min

Nearby

Severe Thunderstorm Warnings in Alabama, 2011 Every severe thunderstorm warning in 2011

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.