Alert archive / Alabama / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 78, NWS Mobile, AL

May 30, 2012Conecuh County, Monroe County, Alabama

NWS Mobile, AL issued this severe thunderstorm warning at May 30, 2012, 5:06 PM CDT for Conecuh County, Monroe County, Alabama. It was in force for 54 min. 1 report 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
May 30, 2012, 5:06 PM CDT (22:06 UTC)
Expired
May 30, 2012, 6:00 PM CDT
In force
54 min
Issued by
NWS Mobile, AL
Area
Storm-based polygon

Counties Conecuh County, AL, Monroe County, AL

The radar

The Mobile radar (KMOB), 115 km from the middle of the area, began a volume at 22:08 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
May 30, 5:07 PM CDTHAIL 1Frisco City, ALMONROE COUNTY EM REPORTED QUARTER SIZE HAIL IN FRISCO CITY.

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, 10.1 hours before the alert went out and 206 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 2012-05-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 93 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 2012-05-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 28 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
93 J/kg
Mixed-layer CIN
-271 J/kg
Mixed-layer LCL
1289 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
28 m²/s²
0-3 km storm-relative helicity
-6 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.

677 
WUUS54 KMOB 302206
SVRMOB
ALC035-099-302300-
/O.NEW.KMOB.SV.W.0078.120530T2206Z-120530T2300Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
506 PM CDT WED MAY 30 2012

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHWESTERN CONECUH COUNTY IN SOUTH CENTRAL ALABAMA...
  SOUTH CENTRAL MONROE COUNTY IN SOUTH CENTRAL ALABAMA...

* UNTIL 600 PM CDT

* AT 504 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING
  WINDS OVER 60 MPH WAS LOCATED NEAR FRISCO CITY...OR 3 MILES
  SOUTHWEST OF EXCEL. WAS NEARLY STATIONARY.

* LOCATIONS IMPACTED INCLUDE...
  MEGARGEL...           FRISCO CITY...        EXCEL...
  REPTON...

LAT...LON 3153 8738 3139 8715 3126 8732 3126 8743
      3141 8753
TIME...MOT...LOC 2207Z 318DEG 1KT 3141 8739

$$
2 follow-up statements
178 
WWUS54 KMOB 302217
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
517 PM CDT WED MAY 30 2012

ALC035-099-302300-
/O.CON.KMOB.SV.W.0078.000000T0000Z-120530T2300Z/
CONECUH AL-MONROE AL-
517 PM CDT WED MAY 30 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 600 PM CDT
FOR SOUTH CENTRAL MONROE AND SOUTHWESTERN CONECUH COUNTIES...

AT 513 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER
SIZE HAIL AND DAMAGING WINDS OVER 60 MPH WAS LOCATED NEAR FRISCO 
CITY...OR 3 MILES SOUTHWEST OF EXCEL. THIS STORM WAS LOCATED NEARLY 
STATIONARY.

LOCATIONS IMPACTED INCLUDE...
  MEGARGEL...           FRISCO CITY...        EXCEL...
  REPTON...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

HAIL UP TO QUARTER SIZE HAS BEEN REPORTED IN FRISCO CITY WITH THIS 
STORM.

TO REPORT SEVERE WEATHER...CALL (800) 284-9059.

&&

LAT...LON 3153 8738 3139 8715 3126 8732 3126 8743
      3141 8753
TIME...MOT...LOC 2217Z 318DEG 1KT 3141 8739

$$
307 
WWUS54 KMOB 302241
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
541 PM CDT WED MAY 30 2012

ALC035-099-302300-
/O.CON.KMOB.SV.W.0078.000000T0000Z-120530T2300Z/
CONECUH AL-MONROE AL-
541 PM CDT WED MAY 30 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 600 PM CDT
FOR SOUTH CENTRAL MONROE AND SOUTHWESTERN CONECUH COUNTIES...

AT 536 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING
WINDS OVER 60 MPH WAS LOCATED NEAR FRISCO CITY...OR NEAR EXCEL...
MOVING EAST AT 5 MPH.

LOCATIONS IMPACTED INCLUDE...
  MEGARGEL...           FRISCO CITY...        EXCEL...
  REPTON...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TO REPORT SEVERE WEATHER...CALL (800) 284-9059.

&&

LAT...LON 3153 8738 3139 8715 3126 8732 3126 8743
      3141 8753
TIME...MOT...LOC 2241Z 271DEG 2KT 3142 8737

$$

The office that day

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

IssuedProductOfficeCountiesLasted
May 29, 9:32 PM CDTSpecial Marine WarningMOB88 min
May 30, 2:23 AM CDTSevere Thunderstorm WarningMOBCovington37 min
May 30, 2:12 PM CDTSpecial Marine WarningMOB93 min
May 30, 2:54 PM CDTSevere Thunderstorm WarningMOBMobile66 min
May 30, 3:00 PM CDTSevere Thunderstorm WarningMOBBaldwin60 min
May 30, 3:19 PM CDTSevere Thunderstorm WarningMOBBaldwin, Mobile56 min
May 30, 4:03 PM CDTSevere Thunderstorm WarningMOBMobile57 min
May 30, 4:12 PM CDTSevere Thunderstorm WarningMOBClarke37 min
May 30, 4:16 PM CDTSevere Thunderstorm WarningMOBMobile59 min
May 30, 4:21 PM CDTSevere Thunderstorm WarningMOBMobile54 min
May 30, 5:14 PM CDTSevere Thunderstorm WarningMOBChoctaw24 min
May 30, 5:38 PM CDTSevere Thunderstorm WarningMOBClarke67 min
May 30, 5:52 PM CDTSevere Thunderstorm WarningMOBMonroe29 min
May 30, 6:20 PM CDTSevere Thunderstorm WarningMOBCovington, Escambia32 min
May 30, 6:47 PM CDTSevere Thunderstorm WarningMOBChoctaw46 min

Nearby

Severe Thunderstorm Warnings in Alabama, 2012Every severe thunderstorm warning in 2012

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.