Alert archive / Mississippi / Severe Thunderstorm Warnings in 2015

Severe Thunderstorm Warning 91, NWS Mobile, AL

July 4, 2015George County, Mississippi; Mobile County, Alabama

NWS Mobile, AL issued this severe thunderstorm warning at Jul 4, 2015, 4:27 PM CDT for George County, Mississippi; Mobile County, Alabama. It was in force for 47 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
Jul 4, 2015, 4:27 PM CDT (21:27 UTC)
Expired
Jul 4, 2015, 5:14 PM CDT
In force
47 min
Issued by
NWS Mobile, AL
Area
Storm-based polygon

Counties Mobile County, AL, George County, MS

The radar

The Mobile radar (KMOB), 27 km from the middle of the area, began a volume at 21:30 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, 9.5 hours before the alert went out and 141 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 2015-07-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2707 joules per kilogram.LCLEL10008507005003002001001 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, Slidell Radar S, LA at 12:00Z on 2015-07-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 77 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
2707 J/kg
Mixed-layer CIN
-4 J/kg
Mixed-layer LCL
721 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
77 m²/s²
0-3 km storm-relative helicity
55 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.

054 
WUUS54 KMOB 042127
SVRMOB
ALC097-MSC039-042230-
/O.NEW.KMOB.SV.W.0091.150704T2127Z-150704T2230Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
427 PM CDT SAT JUL 4 2015

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHWESTERN MOBILE COUNTY IN SOUTHWESTERN ALABAMA...
  EASTERN GEORGE COUNTY IN SOUTHEASTERN MISSISSIPPI...

* UNTIL 530 PM CDT

* AT 427 PM CDT...A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING
  DAMAGING WINDS OVER 60 MPH WAS LOCATED ALONG A LINE EXTENDING FROM
  NEAR LUCEDALE TO 7 MILES NORTHWEST OF WADE...AND MOVING EAST AT 25
  MPH.

* LOCATIONS IMPACTED INCLUDE...
  MOBILE...              LUCEDALE...            GULFCREST...
  CHUNCHULA...           SEMMES...              

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS OFTEN PRODUCE FREQUENT CLOUD TO GROUND
LIGHTNING. PLEASE TAKE COVER UNTIL THE STORM PASSES.

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

&&

LAT...LON 3068 8841 3074 8841 3074 8869 3099 8857
      3100 8853 3100 8843 3103 8843 3114 8801
      3067 8830
TIME...MOT...LOC 2127Z 255DEG 22KT 3095 8854 3069 8868 
$$
2 follow-up statements
800 
WWUS54 KMOB 042156
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
456 PM CDT SAT JUL 4 2015

MSC039-042206-
/O.CAN.KMOB.SV.W.0091.000000T0000Z-150704T2230Z/
GEORGE MS-
456 PM CDT SAT JUL 4 2015

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN GEORGE COUNTY HAS BEEN
CANCELLED...

AT 456 PM CDT...THE STORM THAT PROMPTED THE WARNING FOR EASTERN 
GEORGE COUNTY HAS MOVED OUT OF THE WARNED AREA THUS THE SEVERE 
THUNDERSTORM WARNING HAS BEEN CANCELLED.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3074 8841 3103 8843 3114 8801 3079 8823
TIME...MOT...LOC 2156Z 251DEG 27KT 3100 8836 3080 8836 

$$

ALC097-042230-
/O.CON.KMOB.SV.W.0091.000000T0000Z-150704T2230Z/
MOBILE AL-
456 PM CDT SAT JUL 4 2015

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 530 PM CDT
FOR NORTHWESTERN MOBILE COUNTY...
    
AT 456 PM CDT...A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING
DAMAGING WINDS OVER 60 MPH WERE LOCATED ALONG A LINE EXTENDING FROM 7
MILES WEST OF GULFCREST TO NEAR SEMMES...MOVING EAST AT 30 MPH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS OFTEN PRODUCE FREQUENT CLOUD TO GROUND
LIGHTNING. PLEASE TAKE COVER UNTIL THE STORM PASSES.

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

&&

LAT...LON 3074 8841 3103 8843 3114 8801 3079 8823
TIME...MOT...LOC 2156Z 251DEG 27KT 3100 8836 3080 8836 
$$
254 
WWUS54 KMOB 042214
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
514 PM CDT SAT JUL 4 2015

ALC097-042223-
/O.CAN.KMOB.SV.W.0091.000000T0000Z-150704T2230Z/
MOBILE AL-
514 PM CDT SAT JUL 4 2015

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN MOBILE COUNTY HAS
BEEN CANCELLED...

AT 513 PM CDT...THE STORM THAT PROMPTED THE WARNING FOR NORTHWESTERN
MOBILE COUNTY HAS WEAKENED BELOW SEVERE LIMITS THUS THE SEVERE 
THUNDERSTORM WARNING HAS BEEN CANCELLED. WINDS GUSTING TO 50 MPH ARE 
STILL POSSIBLE WITH THIS STORM. PLEASE REMAIN ALERT UNTIL THE STORM 
HAS PASSED.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3074 8841 3103 8843 3114 8801 3079 8823
TIME...MOT...LOC 2210Z 255DEG 22KT 3100 8836 3080 8836 

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 4, 2:47 PM CDTSpecial Weather StatementMOBGreene, Perry, Wayne58 min
Jul 4, 3:07 PM CDTSevere Thunderstorm WarningMOBGreene, Perry, Wayne38 min
Jul 4, 3:46 PM CDTSevere Thunderstorm WarningMOBGreene, Wayne59 min
Jul 4, 2:18 PM CDTSpecial Weather StatementMOBChoctaw57 min
Jul 4, 4:30 PM CDTSpecial Weather StatementMOBMonroe60 min
Jul 4, 4:39 PM CDTSevere Thunderstorm WarningMOBClarke, Monroe51 min
Jul 4, 5:05 PM CDTSevere Thunderstorm WarningMOBConecuh, Monroe55 min
Jul 4, 5:13 PM CDTSevere Thunderstorm WarningMOBButler, Crenshaw62 min
Jul 4, 5:23 PM CDTSpecial Marine WarningMOB52 min
Jul 4, 5:30 PM CDTSpecial Weather StatementMOBCovington60 min
Jul 4, 5:36 PM CDTSpecial Weather StatementMOBBaldwin54 min
Jul 4, 5:49 PM CDTSpecial Weather StatementMOBCovington, Crenshaw56 min
Jul 4, 5:56 PM CDTSevere Thunderstorm WarningMOBButler, Crenshaw64 min
Jul 4, 5:58 PM CDTSpecial Marine WarningMOB92 min
Jul 4, 6:23 PM CDTSpecial Marine WarningMOB82 min
Jul 4, 6:30 PM CDTSpecial Marine WarningMOB2 hr
Jul 4, 6:35 PM CDTSpecial Weather StatementMOBCovington40 min

Nearby

Severe Thunderstorm Warnings in Mississippi, 2015Severe Thunderstorm Warnings in Alabama, 2015Every severe thunderstorm warning in 2015

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.