Alert archive / Alabama / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 60, NWS Mobile, AL

May 26, 2011Mobile County, Alabama; George County, Mississippi

NWS Mobile, AL issued this severe thunderstorm warning at May 26, 2011, 10:25 AM CDT for Mobile County, Alabama; George County, Mississippi. It was in force for 50 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, 10:25 AM CDT (15:25 UTC)
Expired
May 26, 2011, 11:15 AM CDT
In force
50 min
Issued by
NWS Mobile, AL
Area
Storm-based polygon

Counties Mobile County, AL, George County, MS

The radar

The Mobile radar (KMOB), 23 km from the middle of the area, began a volume at 15:27 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, 3.4 hours before the alert went out and 140 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 2011-05-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3259 joules per kilogram.LCLEL10008507005003002001001 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 2011-05-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 130 square meters per square second.193958Sfc1 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
3259 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
464 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
130 m²/s²
0-3 km storm-relative helicity
133 m²/s²
Significant tornado parameter
2.0
Supercell composite
12.8

Open this sounding in Storm Lab

The text

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

819 
WUUS54 KMOB 261525
SVRMOB
ALC097-MSC039-261615-
/O.NEW.KMOB.SV.W.0060.110526T1525Z-110526T1615Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
1025 AM CDT THU MAY 26 2011

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEASTERN GEORGE COUNTY IN SOUTHEAST MISSISSIPPI...
  CENTRAL MOBILE COUNTY IN SOUTHWEST ALABAMA...
  THIS INCLUDES THE CITY OF CHICKASAW...

* UNTIL 1115 AM CDT

* AT 1023 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS
  OF 60 MPH.  THIS STORM WAS LOCATED 15 MILES SOUTH OF LUCEDALE...OR
  6 MILES SOUTH OF BASIN...AND MOVING NORTHEAST AT 40 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  BASIN AROUND 1030 AM CDT...
  LOTT AND COLEMAN D AND LOTT AND COLEMAN DAIRY ROAD AROUND 1100 AM
  CDT...
  OAK GROVE AROUND 1110 AM CDT...

THIS INCLUDES INTERSTATE 65 BETWEEN MILE MARKERS 9 AND 15.

&&

LAT...LON 3109 8816 3075 8806 3067 8842 3073 8843
      3074 8879 3076 8881
TIME...MOT...LOC 1525Z 242DEG 34KT 3073 8866

$$
3 follow-up statements
450 
WWUS54 KMOB 261546
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
1046 AM CDT THU MAY 26 2011

ALC097-MSC039-261615-
/O.CON.KMOB.SV.W.0060.000000T0000Z-110526T1615Z/
GEORGE MS-MOBILE AL-
1046 AM CDT THU MAY 26 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1115 AM CDT
FOR CENTRAL MOBILE AND SOUTHEASTERN GEORGE COUNTIES...

AT 1041 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN
EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR MOVELLA...OR 12 MILES
SOUTHEAST OF LUCEDALE...MOVING EAST AT 40 MPH.

LAT...LON 3074 8870 3088 8857 3109 8816 3075 8806
      3067 8842 3073 8843
TIME...MOT...LOC 1546Z 259DEG 34KT 3079 8843

$$
450 
WWUS54 KMOB 261554
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
1054 AM CDT THU MAY 26 2011

ALC097-MSC039-261615-
/O.CON.KMOB.SV.W.0060.000000T0000Z-110526T1615Z/
GEORGE MS-MOBILE AL-
1054 AM CDT THU MAY 26 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1115 AM CDT
FOR CENTRAL MOBILE AND SOUTHEASTERN GEORGE COUNTIES...

AT 1050 AM CDT...A NEW SEVERE THUNDERSTORM HAS DEVELOPED WITHIN THE 
AREA CURRENTLY UNDER A SEVERE THUNDERSTORM WARNING IN MOBILE COUNTY. 
THIS SEVERE THUNDERSTORM IS CAPABLE OF PRODUCING DAMAGING WINDS IN 
EXCESS OF 60 MPH AND IS LOCATED NEAR GULFCREST...OR 7 MILES 
SOUTHWEST OF CITRONELLE...MOVING EAST AT 20 MPH.

LAT...LON 3074 8870 3088 8857 3109 8816 3075 8806
      3067 8842 3073 8843
TIME...MOT...LOC 1552Z 269DEG 17KT 3101 8829

$$
507 
WWUS54 KMOB 261611
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
1111 AM CDT THU MAY 26 2011

ALC097-MSC039-261620-
/O.EXP.KMOB.SV.W.0060.000000T0000Z-110526T1615Z/
GEORGE MS-MOBILE AL-
1111 AM CDT THU MAY 26 2011

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL MOBILE AND
SOUTHEASTERN GEORGE COUNTIES WILL EXPIRE AT 1115 AM CDT...

AT 1110 AM CDT...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL MOBILE 
COUNTY ALABAMA AND SOUTHEASTERN GEORGE COUNTY MISSISSIPPI WILL BE 
ALLOWED TO EXPIRE AT 1115 AM.  THE STORMS THAT PROMPTED THE WARNING 
HAVE WEAKENED TO BELOW SEVERE LIMITS THUS THE WARNING WILL BE 
ALLOWED TO EXPIRE.  ADDITIONAL WARNINGS ARE POSSIBLE SO STAY TUNED.

LAT...LON 3074 8870 3088 8857 3109 8816 3075 8806
      3067 8842 3073 8843
TIME...MOT...LOC 1610Z 269DEG 17KT 3101 8819

$$

The office that day

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

IssuedProductOfficeCountiesLasted
May 26, 12:14 PM CDTSevere Thunderstorm WarningMOBChoctaw, Clarke33 min
May 26, 12:22 PM CDTSevere Thunderstorm WarningMOBClarke, Wilcox27 min
May 26, 12:43 PM CDTSevere Thunderstorm WarningMOBChoctaw, Washington47 min
May 26, 12:45 PM CDTSevere Thunderstorm WarningMOBMobile45 min
May 26, 1:04 PM CDTSevere Thunderstorm WarningMOBButler41 min
May 26, 1:24 PM CDTSevere Thunderstorm WarningMOBBaldwin, Mobile, Washington37 min
May 26, 1:27 PM CDTSevere Thunderstorm WarningMOBChoctaw63 min
May 26, 1:29 PM CDTSevere Thunderstorm WarningMOBButler, Crenshaw46 min
May 26, 1:34 PM CDTSevere Thunderstorm WarningMOBCovington, Crenshaw26 min
May 26, 2:43 PM CDTSevere Thunderstorm WarningMOBMobile62 min
May 26, 2:44 PM CDTFlash Flood WarningMOBChoctaw, Washington3 hr
May 26, 3:20 PM CDTTornado WarningMOBMobile40 min
May 26, 3:31 PM CDTSpecial Marine WarningMOB59 min
May 26, 3:39 PM CDTSevere Thunderstorm WarningMOBBaldwin, Clarke, Mobile, Monroe, Washington20 min
May 26, 4:23 PM CDTSevere Thunderstorm WarningMOBMobile37 min
May 26, 1:47 PM CDTSevere Thunderstorm WarningMOBPerry20 min
May 26, 6:05 PM CDTSevere Thunderstorm WarningMOBGeorge, Stone40 min

Nearby

Severe Thunderstorm Warnings in Alabama, 2011Severe Thunderstorm Warnings in Mississippi, 2011Every 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.