Alert archive / Alabama / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 89, NWS Mobile, AL

June 7, 2011Escambia County, Alabama

NWS Mobile, AL issued this severe thunderstorm warning at Jun 7, 2011, 4:10 PM CDT for Escambia County, Alabama. It was in force for 35 min. 3 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Jun 7, 2011, 4:10 PM CDT (21:10 UTC)
Expired
Jun 7, 2011, 4:45 PM CDT
In force
35 min
Issued by
NWS Mobile, AL
Area
Storm-based polygon

County Escambia County, AL

The radar

The Mobile radar (KMOB), 114 km from the middle of the area, began a volume at 21:12 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.

What was reported inside it

TimeReportWhereRemark
Jun 7, 4:14 PM CDTTSTM WND DMG1 Ne Brewton, ALSHINGLES BLOWN OFF ROOF OF WEBJ RADIO STUDIO.
Jun 7, 4:15 PM CDTTSTM WND DMG2 S Brewton, ALLARGE TREE BLOWN ONTO MOBILE HOME.
Jun 7, 4:15 PM CDTTSTM WND DMGBrewton, ALNUMEROUS TREES REPORTED DOWN AROUND THE CITY OF BREWTON.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Birmingham, AL (KBMX), launched 12:00Z, 9.2 hours before the alert went out and 237 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, Birmingham, AL at 12:00Z on 2011-06-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 772 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, Birmingham, AL at 12:00Z on 2011-06-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -40 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
772 J/kg
Mixed-layer CIN
-166 J/kg
Mixed-layer LCL
1496 m above ground
0-6 km bulk shear
9 kt
0-1 km storm-relative helicity
-40 m²/s²
0-3 km storm-relative helicity
-54 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.

556 
WUUS54 KMOB 072110
SVRMOB
ALC053-072145-
/O.NEW.KMOB.SV.W.0089.110607T2110Z-110607T2145Z/

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

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CENTRAL ESCAMBIA COUNTY IN SOUTH CENTRAL ALABAMA...
  THIS INCLUDES THE CITIES OF...EAST BREWTON...BREWTON...

* UNTIL 445 PM CDT

* AT 408 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN         
  EXCESS OF 60 MPH AND LARGE HAIL.  THIS STORM WAS LOCATED NEAR EAST 
  BREWTON...OR NEAR RIVERVIEW...AND MOVING WEST AT 10 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  BREWTON AROUND 415 PM CDT...
  POLLARD AROUND 445 PM CDT...

&&

LAT...LON 3101 8723 3118 8720 3114 8700 3100 8703
TIME...MOT...LOC 2110Z 095DEG 9KT 3105 8707

$$

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, 4:30 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, 6:38 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.