Alert archive / Alabama / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 191, NWS Mobile, AL

September 24, 2016Conecuh County, Covington County, Escambia County, Alabama

NWS Mobile, AL issued this severe thunderstorm warning at Sep 24, 2016, 3:12 PM CDT for Conecuh County, Covington County, Escambia County, Alabama. It was in force for 63 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
Sep 24, 2016, 3:12 PM CDT (20:12 UTC)
Expired
Sep 24, 2016, 4:15 PM CDT
In force
63 min
Issued by
NWS Mobile, AL
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Conecuh County, AL, Covington County, AL, Escambia County, AL

The radar

The Eglin Afb radar (KEVX), 112 km from the middle of the area, began a volume at 20:16 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

Birmingham, AL (KBMX), launched 12:00Z, 8.2 hours before the alert went out and 223 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 2016-09-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 101 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 2016-09-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -1 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
101 J/kg
Mixed-layer CIN
-140 J/kg
Mixed-layer LCL
1659 m above ground
0-6 km bulk shear
12 kt
0-1 km storm-relative helicity
-1 m²/s²
0-3 km storm-relative helicity
57 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

606 
WUUS54 KMOB 242012
SVRMOB
ALC035-039-053-242115-
/O.NEW.KMOB.SV.W.0191.160924T2012Z-160924T2115Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
312 PM CDT SAT SEP 24 2016

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEASTERN CONECUH COUNTY IN SOUTH CENTRAL ALABAMA...
  WEST CENTRAL COVINGTON COUNTY IN SOUTH CENTRAL ALABAMA...
  EASTERN ESCAMBIA COUNTY IN SOUTH CENTRAL ALABAMA...

* UNTIL 415 PM CDT

* AT 312 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED 11 MILES
  SOUTHWEST OF RED LEVEL...OR 14 MILES SOUTHEAST OF
  EVERGREEN...MOVING SOUTHWEST AT 20 MPH.

  HAZARD...60 MPH WIND GUSTS. 

  SOURCE...RADAR INDICATED. 

  IMPACT...EXPECT DAMAGE TO ROOFS...SIDING...AND TREES. 

* LOCATIONS IMPACTED INCLUDE...
  CASTLEBERRY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

&&

LAT...LON 3100 8684 3100 8691 3130 8723 3143 8676
      3132 8659
TIME...MOT...LOC 2012Z 052DEG 22KT 3130 8676 

HAIL...<.75IN
WIND...60MPH
 
$$
1 follow-up statement
284 
WWUS54 KMOB 242028
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
328 PM CDT SAT SEP 24 2016

ALC035-039-053-242115-
/O.CON.KMOB.SV.W.0191.000000T0000Z-160924T2115Z/
CONECUH AL-COVINGTON AL-ESCAMBIA AL-
328 PM CDT SAT SEP 24 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 415 PM CDT
FOR SOUTHEASTERN CONECUH...WEST CENTRAL COVINGTON AND EASTERN
ESCAMBIA COUNTIES...

AT 328 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED 12 MILES EAST OF
CASTLEBERRY...OR 14 MILES SOUTHEAST OF EVERGREEN...MOVING SOUTHWEST
AT 15 MPH.

HAZARD...60 MPH WIND GUSTS. 

SOURCE...RADAR INDICATED. 

IMPACT...EXPECT DAMAGE TO ROOFS...SIDING...AND TREES. 

LOCATIONS IMPACTED INCLUDE...
CASTLEBERRY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

&&

LAT...LON 3100 8684 3100 8691 3130 8723 3143 8676
      3132 8659
TIME...MOT...LOC 2028Z 053DEG 14KT 3126 8682 

HAIL...<.75IN
WIND...60MPH
 
$$

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 24, 2:39 PM CDTSpecial Weather StatementMOBButler, Conecuh51 min
Sep 24, 2:58 PM CDTSpecial Marine WarningMOB62 min
Sep 24, 3:03 PM CDTSevere Thunderstorm WarningMOBMonroe, Wilcox12 min
Sep 24, 3:29 PM CDTSpecial Weather StatementMOBConecuh31 min
Sep 24, 3:38 PM CDTSpecial Marine WarningMOB67 min
Sep 24, 4:00 PM CDTSpecial Weather StatementMOBWilcox30 min
Sep 24, 4:32 PM CDTSpecial Marine WarningMOB58 min
Sep 24, 5:01 PM CDTSpecial Marine WarningMOB59 min

Nearby

Severe Thunderstorm Warnings in Alabama, 2016Every severe thunderstorm warning in 2016

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.