Alert archive / Alabama / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 65, NWS Mobile, AL

May 26, 2011Butler County, Alabama

NWS Mobile, AL issued this severe thunderstorm warning at May 26, 2011, 1:04 PM CDT for Butler County, Alabama. It was in force for 41 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: May 26, 2011, 1:04 PM CDT (18:04 UTC)
Expired: May 26, 2011, 1:45 PM CDT
In force: 41 min
Issued by: NWS Mobile, AL
Area: Storm-based polygon

County Butler County, AL

The nearest sounding before it

Birmingham, AL (KBMX), launched 12:00Z, 6.1 hours before the alert went out and 172 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: 2103 J/kg
Mixed-layer CIN: -6 J/kg
Mixed-layer LCL: 485 m above ground
0-6 km bulk shear: 45 kt
0-1 km storm-relative helicity: 165 m²/s²
0-3 km storm-relative helicity: 143 m²/s²
Significant tornado parameter: 1.8
Supercell composite: 7.7

Open this sounding in Storm Lab

The text

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

862 
WUUS54 KMOB 261804
SVRMOB
ALC013-261845-
/O.NEW.KMOB.SV.W.0065.110526T1804Z-110526T1845Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
104 PM CDT THU MAY 26 2011

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  BUTLER COUNTY IN SOUTH CENTRAL ALABAMA...
  THIS INCLUDES THE CITIES OF...GREENVILLE...GEORGIANA...

* UNTIL 145 PM CDT

* AT 100 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED 9 MILES
  SOUTH OF GEORGIANA...OR NEAR I65 AND CR 7...AND MOVING NORTHEAST AT
  30 MPH.

THIS INCLUDES INTERSTATE 65 BETWEEN MILE MARKERS 106 AND 131.

&&

LAT...LON 3166 8649 3166 8650 3165 8650 3156 8658
      3153 8662 3153 8685 3156 8687 3158 8688
      3189 8666 3171 8645
TIME...MOT...LOC 1804Z 218DEG 25KT 3154 8678

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
May 26, 10:25 AM CDT	Severe Thunderstorm Warning	MOB	Mobile	50 min
May 26, 12:14 PM CDT	Severe Thunderstorm Warning	MOB	Choctaw, Clarke	33 min
May 26, 12:22 PM CDT	Severe Thunderstorm Warning	MOB	Clarke, Wilcox	27 min
May 26, 12:43 PM CDT	Severe Thunderstorm Warning	MOB	Choctaw, Washington	47 min
May 26, 12:45 PM CDT	Severe Thunderstorm Warning	MOB	Mobile	45 min
May 26, 1:24 PM CDT	Severe Thunderstorm Warning	MOB	Baldwin, Mobile, Washington	37 min
May 26, 1:27 PM CDT	Severe Thunderstorm Warning	MOB	Choctaw	63 min
May 26, 1:29 PM CDT	Severe Thunderstorm Warning	MOB	Butler, Crenshaw	46 min
May 26, 1:34 PM CDT	Severe Thunderstorm Warning	MOB	Covington, Crenshaw	26 min
May 26, 2:43 PM CDT	Severe Thunderstorm Warning	MOB	Mobile	62 min
May 26, 2:44 PM CDT	Flash Flood Warning	MOB	Choctaw, Washington	3 hr
May 26, 3:20 PM CDT	Tornado Warning	MOB	Mobile	40 min
May 26, 3:31 PM CDT	Special Marine Warning	MOB		59 min
May 26, 3:39 PM CDT	Severe Thunderstorm Warning	MOB	Baldwin, Clarke, Mobile, Monroe, Washington	20 min
May 26, 4:23 PM CDT	Severe Thunderstorm Warning	MOB	Mobile	37 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.