Alert archive / Alabama / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 182, NWS Mobile, AL

August 2, 2016Clarke County, Alabama

NWS Mobile, AL issued this severe thunderstorm warning at Aug 2, 2016, 5:55 PM CDT for Clarke County, Alabama. It was in force for 35 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
Aug 2, 2016, 5:55 PM CDT (22:55 UTC)
Expired
Aug 2, 2016, 6:30 PM CDT
In force
35 min
Issued by
NWS Mobile, AL
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

County Clarke County, AL

The radar

The Mobile radar (KMOB), 141 km from the middle of the area, began a volume at 22:55 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, 10.9 hours before the alert went out and 170 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 2016-08-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 680 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 2016-08-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 37 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
680 J/kg
Mixed-layer CIN
-78 J/kg
Mixed-layer LCL
1101 m above ground
0-6 km bulk shear
9 kt
0-1 km storm-relative helicity
37 m²/s²
0-3 km storm-relative helicity
49 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

736 
WUUS54 KMOB 022255
SVRMOB
ALC025-022330-
/O.NEW.KMOB.SV.W.0182.160802T2255Z-160802T2330Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
555 PM CDT TUE AUG 2 2016

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHEASTERN CLARKE COUNTY IN SOUTHWESTERN ALABAMA...

* UNTIL 630 PM CDT

* AT 555 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR SHAWNEE...OR
  NEAR THOMASVILLE...MOVING SOUTH AT 25 MPH.

  HAZARD...60 MPH WIND GUSTS. 

  SOURCE...RADAR INDICATED. 

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

* LOCATIONS IMPACTED INCLUDE...
  THOMASVILLE AND FULTON. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3188 8767 3188 8763 3187 8762 3183 8762
      3183 8759 3175 8757 3170 8790 3199 8796
      3199 8767
TIME...MOT...LOC 2255Z 348DEG 22KT 3198 8778 

HAIL...<.75IN
WIND...60MPH
 
$$
1 follow-up statement
665 
WWUS54 KMOB 022321
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
621 PM CDT TUE AUG 2 2016

ALC025-022331-
/O.EXP.KMOB.SV.W.0182.000000T0000Z-160802T2330Z/
CLARKE AL-
621 PM CDT TUE AUG 2 2016

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN CLARKE COUNTY
WILL EXPIRE AT 630 PM CDT...
                
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSE AN IMMEDIATE THREAT TO LIFE OR PROPERTY.
THEREFORE...THE WARNING WILL BE ALLOWED TO EXPIRE.  HOWEVER GUSTY
WINDS AND HEAVY RAIN ARE STILL POSSIBLE WITH THIS THUNDERSTORM.

LAT...LON 3188 8767 3188 8763 3187 8762 3183 8762
      3183 8759 3175 8757 3170 8790 3199 8796
      3199 8767
TIME...MOT...LOC 2317Z 348DEG 22KT 3198 8778 

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 1, 7:13 PM CDTSpecial Weather StatementMOBEscambia32 min
Aug 1, 7:39 PM CDTSpecial Weather StatementMOBEscambia51 min
Aug 1, 8:26 PM CDTSpecial Weather StatementMOBBaldwin34 min
Aug 1, 9:35 PM CDTSpecial Weather StatementMOBMobile40 min
Aug 2, 11:01 AM CDTFlash Flood WarningMOBBaldwin3 hr
Aug 2, 12:22 PM CDTSpecial Weather StatementMOBMobile38 min
Aug 2, 1:08 PM CDTAreal Flood AdvisoryMOBMobile3 hr
Aug 2, 1:37 PM CDTSpecial Weather StatementMOBCrenshaw38 min
Aug 2, 1:53 PM CDTSpecial Weather StatementMOBMobile52 min
Aug 2, 2:52 PM CDTSpecial Weather StatementMOBWashington38 min
Aug 2, 2:55 PM CDTSevere Thunderstorm WarningMOBMobile, Washington35 min
Aug 2, 3:10 PM CDTSpecial Weather StatementMOBMonroe50 min
Aug 2, 3:27 PM CDTSevere Thunderstorm WarningMOBMobile33 min
Aug 2, 4:16 PM CDTSpecial Weather StatementMOBWilcox44 min
Aug 2, 4:44 PM CDTAreal Flood AdvisoryMOBWilcox3 hr
Aug 2, 4:55 PM CDTSpecial Weather StatementMOBChoctaw50 min
Aug 2, 5:43 PM CDTSpecial Weather StatementMOBChoctaw47 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.