Alert archive / Alabama / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 96, NWS Mobile, AL

June 7, 20115 counties in Alabama

NWS Mobile, AL issued this severe thunderstorm warning at Jun 7, 2011, 5:19 PM CDT for 5 counties in 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
Jun 7, 2011, 5:19 PM CDT (22:19 UTC)
Expired
Jun 7, 2011, 6:00 PM CDT
In force
41 min
Issued by
NWS Mobile, AL
Area
Storm-based polygon

Counties Baldwin County, AL, Clarke County, AL, Escambia County, AL, Monroe County, AL, Washington County, AL

The radar

The Mobile radar (KMOB), 80 km from the middle of the area, began a volume at 22:22 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, 10.3 hours before the alert went out and 213 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 2011-06-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 639 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 2011-06-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 30 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
639 J/kg
Mixed-layer CIN
-166 J/kg
Mixed-layer LCL
1521 m above ground
0-6 km bulk shear
11 kt
0-1 km storm-relative helicity
30 m²/s²
0-3 km storm-relative helicity
53 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.

319 
WUUS54 KMOB 072219
SVRMOB
ALC003-025-053-099-129-072300-
/O.NEW.KMOB.SV.W.0096.110607T2219Z-110607T2300Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
519 PM CDT TUE JUN 7 2011

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHWESTERN ESCAMBIA COUNTY IN SOUTH CENTRAL ALABAMA...
  SOUTHWESTERN MONROE COUNTY IN SOUTH CENTRAL ALABAMA...
  NORTHWESTERN BALDWIN COUNTY IN SOUTHWEST ALABAMA...
  SOUTHERN CLARKE COUNTY IN SOUTHWEST ALABAMA...
  THIS INCLUDES THE CITIES OF...JACKSON...GROVE HILL...
  EASTERN WASHINGTON COUNTY IN SOUTHWEST ALABAMA...

* UNTIL 600 PM CDT

* AT 518 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE
  HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THESE STORMS WERE
  LOCATED ALONG A LINE EXTENDING FROM 7 MILES SOUTHEAST OF GROVE HILL
  TO 13 MILES NORTHWEST OF ATMORE...AND MOVING WEST AT 20 MPH.

* SEVERE THUNDERSTORMS WILL BE NEAR...
  ALLEN...MT PLEASANT AND MOUNT PLEASANT AROUND 525 PM CDT...
  MANILLA AND MANILA AROUND 530 PM CDT...
  GROVE HILL AROUND 535 PM CDT...
  CHOCTAW BLUFF AROUND 545 PM CDT...
  JACKSON...CORTELUOU AND SAINT STEPHRNS AROUND 600 PM CDT...

&&

LAT...LON 3174 8756 3108 8752 3112 8794 3113 8795
      3115 8794 3116 8797 3117 8799 3116 8801
      3177 8809
TIME...MOT...LOC 2220Z 097DEG 16KT 3164 8770 3118 8764

$$
1 follow-up statement
963 
WWUS54 KMOB 072231
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
531 PM CDT TUE JUN 7 2011

ALC003-025-053-099-129-072300-
/O.CON.KMOB.SV.W.0096.000000T0000Z-110607T2300Z/
ESCAMBIA AL-WASHINGTON AL-MONROE AL-CLARKE AL-BALDWIN AL-
531 PM CDT TUE JUN 7 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 600 PM CDT
FOR NORTHWESTERN BALDWIN...SOUTHERN CLARKE...SOUTHWESTERN MONROE...
EASTERN WASHINGTON AND NORTHWESTERN ESCAMBIA COUNTIES...

AT 527 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER
SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THESE STORMS
WERE LOCATED ALONG A LINE EXTENDING FROM WHATELY TO SERANGE...OR
ALONG A LINE EXTENDING FROM GROVE HILL TO 16 MILES NORTHWEST OF 
ATMORE...MOVING WEST-NORTHWEST AT 15 MPH.

SEVERE THUNDERSTORMS WILL BE NEAR...
  MOUNT PLEASANT AND JUST NORTH OF ALMA AT THIS TIME...
  BLACKSHER AND WALKER SPRINGS BY 540 PM CDT...
  CHOCTAW BLUFF BY 545 PM CDT...
  TENSAW BY 550 PM CDT...
  ZIMCO...CLARKSVILLE...TODDTOWN AND ROCKVILLE BY 555 PM CDT...
  JACKSON AND WINN BY 600 PM CDT...

LAT...LON 3174 8756 3108 8752 3112 8794 3113 8795
      3115 8794 3116 8797 3117 8799 3116 8801
      3177 8809
TIME...MOT...LOC 2231Z 097DEG 16KT 3165 8776 3119 8770

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 7, 12:33 AM CDTSpecial Marine WarningMOB87 min
Jun 7, 2:11 AM CDTSpecial Marine WarningMOB94 min
Jun 7, 3:16 AM CDTSpecial Marine WarningMOB44 min
Jun 7, 4:10 PM CDTSevere Thunderstorm WarningMOBEscambia35 min
Jun 7, 4:30 PM CDTSevere Thunderstorm WarningMOBConecuh, Escambia45 min
Jun 7, 4:36 PM CDTSevere Thunderstorm WarningMOBMonroe39 min
Jun 7, 4:46 PM CDTSevere Thunderstorm WarningMOBWashington44 min
Jun 7, 4:52 PM CDTSevere Thunderstorm WarningMOBBaldwin, Clarke, Escambia, Monroe38 min
Jun 7, 5:07 PM CDTSevere Thunderstorm WarningMOBClarke, Washington16 min
Jun 7, 5:18 PM CDTSevere Thunderstorm WarningMOBWashington42 min
Jun 7, 5:35 PM CDTFlash Flood WarningMOBWashington4 hr
Jun 7, 5:39 PM CDTSevere Thunderstorm WarningMOBBaldwin, Choctaw, Clarke, Mobile, Monroe, Washington51 min
Jun 7, 5:53 PM CDTSevere Thunderstorm WarningMOBWashington37 min
Jun 7, 6:08 PM CDTSevere Thunderstorm WarningMOBWashington52 min
Jun 7, 6:17 PM CDTSevere Thunderstorm WarningMOBMobile, Washington43 min
Jun 7, 6:38 PM CDTSevere Thunderstorm WarningMOBBaldwin, Mobile37 min
Jun 7, 6:47 PM CDTSpecial Marine WarningMOB88 min

Nearby

Severe Thunderstorm Warnings in Alabama, 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.