Alert archive / Alabama / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 101, NWS Mobile, AL

June 7, 2011Baldwin County, Mobile County, Alabama; George County, Greene County, Mississippi

NWS Mobile, AL issued this severe thunderstorm warning at Jun 7, 2011, 6:38 PM CDT for Baldwin County, Mobile County, Alabama; George County, Greene County, Mississippi. It was in force for 37 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, 6:38 PM CDT (23:38 UTC)
Expired
Jun 7, 2011, 7:15 PM CDT
In force
37 min
Issued by
NWS Mobile, AL
Area
Storm-based polygon

Counties Baldwin County, AL, Mobile County, AL, George County, MS, Greene County, MS

The radar

The Mobile radar (KMOB), 15 km from the middle of the area, began a volume at 23:41 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, 11.6 hours before the alert went out and 143 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°0°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.

488 
WUUS54 KMOB 072338
SVRMOB
ALC003-097-MSC039-041-080015-
/O.NEW.KMOB.SV.W.0101.110607T2338Z-110608T0015Z/

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

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  GEORGE COUNTY IN SOUTHEAST MISSISSIPPI...
  THIS INCLUDES THE CITY OF LUCEDALE...
  EXTREME SOUTHEASTERN GREENE COUNTY IN SOUTHEAST MISSISSIPPI...
  WEST CENTRAL BALDWIN COUNTY IN SOUTHWEST ALABAMA...
  THIS INCLUDES THE CITY OF SPANISH FORT...
  CENTRAL MOBILE COUNTY IN SOUTHWEST ALABAMA...
  THIS INCLUDES THE CITIES OF...SATSUMA...SARALAND...PRICHARD...
  DOWNTOWN MOBILE...CREOLA...CHICKASAW...

* UNTIL 715 PM CDT

* AT 631 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN
  EXCESS OF 60 MPH.  THESE STORMS WERE LOCATED ALONG A LINE EXTENDING
  FROM CHATOM TO 7 MILES NORTHEAST OF CITRONELLE TO 8 MILES NORTH    
  OF CREOLA...AND MOVING WEST AROUND 30 MPH...BUT DEVELOPING RAPIDLY 
  SOUTHWARD. EXPECT SEVERE THUNDERSTORMS TO RAPIDLY DEVELOP OVER THE 
  WARNED AREAS.

* SEVERE THUNDERSTORMS WILL BE CONTINUE DEVELOPING SOUTHWARD INTO    
  THE CENTRAL AND NORTHERN PORTIONS OF MOBILE AND BALDWIN COUNTIES   
  AND GEORGE COUNTY MISSISSIPPI.

&&

LAT...LON 3102 8881 3103 8792 3067 8777 3066 8797
      3067 8800 3065 8805 3065 8842 3073 8843
      3073 8872 3074 8882
TIME...MOT...LOC 2335Z 270DEG 10KT 3151 8816 3119 8818
          3100 8804

$$

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, 5:19 PM CDTSevere Thunderstorm WarningMOBBaldwin, Clarke, Escambia, Monroe, Washington41 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, 6:47 PM CDTSpecial Marine WarningMOB88 min
Jun 7, 2:29 PM CDTSevere Thunderstorm WarningMOBPerry, Wayne16 min
Jun 7, 2:31 PM CDTAreal Flood AdvisoryMOBPerry59 min
Jun 7, 2:50 PM CDTSevere Thunderstorm WarningMOBWayne25 min
Jun 7, 3:19 PM CDTSevere Thunderstorm WarningMOBGreene, Perry, Wayne26 min
Jun 7, 3:57 PM CDTSevere Thunderstorm WarningMOBGreene33 min
Jun 7, 4:22 PM CDTAreal Flood AdvisoryMOBGreene113 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.