Alert archive / Mississippi / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 74, NWS Mobile, AL

May 26, 2011George County, Stone County, Mississippi

NWS Mobile, AL issued this severe thunderstorm warning at May 26, 2011, 6:05 PM CDT for George County, Stone County, Mississippi. It was in force for 40 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
May 26, 2011, 6:05 PM CDT (23:05 UTC)
Expired
May 26, 2011, 6:45 PM CDT
In force
40 min
Issued by
NWS Mobile, AL
Area
Storm-based polygon

Counties George County, MS, Stone County, MS

The radar

The Mobile radar (KMOB), 53 km from the middle of the area, began a volume at 23:06 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, 11.1 hours before the alert went out and 105 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 2011-05-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3259 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 2011-05-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 130 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
3259 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
464 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
130 m²/s²
0-3 km storm-relative helicity
133 m²/s²
Significant tornado parameter
2.0
Supercell composite
12.8

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

076 
WUUS54 KMOB 262305
SVRMOB
MSC039-131-262345-
/O.NEW.KMOB.SV.W.0074.110526T2305Z-110526T2345Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
605 PM CDT THU MAY 26 2011

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  GEORGE COUNTY IN SOUTHEAST MISSISSIPPI...
  THIS INCLUDES THE CITY OF LUCEDALE...
  SOUTHEASTERN STONE COUNTY IN SOUTHEAST MISSISSIPPI...

* UNTIL 645 PM CDT

* AT 601 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING GOLF BALL SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED 18
  MILES SOUTHEAST OF WIGGINS...OR 14 MILES WEST OF BASIN...AND MOVING
  EAST AT 30 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  BASIN AROUND 625 PM CDT...

&&

LAT...LON 3084 8893 3098 8845 3073 8844 3073 8886
      3068 8887 3068 8888 3068 8895
TIME...MOT...LOC 2305Z 276DEG 28KT 3074 8883

$$
1 follow-up statement
237 
WWUS54 KMOB 262334
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
634 PM CDT THU MAY 26 2011

MSC131-262344-
/O.CAN.KMOB.SV.W.0074.000000T0000Z-110526T2345Z/
STONE MS-
634 PM CDT THU MAY 26 2011

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN STONE COUNTY IS
CANCELLED...

LAT...LON 3074 8876 3086 8875 3090 8845 3073 8844
      3073 8865
TIME...MOT...LOC 2334Z 268DEG 23KT 3080 8857

$$

MSC039-262345-
/O.CON.KMOB.SV.W.0074.000000T0000Z-110526T2345Z/
GEORGE MS-
634 PM CDT THU MAY 26 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 645 PM CDT
FOR SOUTHERN GEORGE COUNTY...

AT 633 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS
LOCATED NEAR BARTON...OR 8 MILES SOUTH OF LUCEDALE...MOVING EAST AT
25 MPH.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  AGRICOLA...MOVELLA AND VAUGHAN BY 640 PM CDT...
  SHIPMAN BY 645 PM CDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...CLOUD TO GROUND 
LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS IMMEDIATELY! 
LIGHTNING IS ONE OF NATURES NUMBER ONE KILLERS. REMEMBER...IF YOU 
CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING.

&&

LAT...LON 3074 8876 3086 8875 3090 8845 3073 8844
      3073 8865
TIME...MOT...LOC 2334Z 268DEG 23KT 3080 8857

$$

The office that day

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

IssuedProductOfficeCountiesLasted
May 26, 10:25 AM CDTSevere Thunderstorm WarningMOBGeorge50 min
May 26, 12:43 PM CDTSevere Thunderstorm WarningMOBWayne47 min
May 26, 12:45 PM CDTSevere Thunderstorm WarningMOBGeorge45 min
May 26, 1:27 PM CDTSevere Thunderstorm WarningMOBWayne63 min
May 26, 1:47 PM CDTSevere Thunderstorm WarningMOBPerry20 min
May 26, 2:44 PM CDTFlash Flood WarningMOBWayne3 hr
May 26, 4:23 PM CDTSevere Thunderstorm WarningMOBGeorge, Greene37 min

Nearby

Severe Thunderstorm Warnings in Mississippi, 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.