Alert archive / Mississippi / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 86, NWS Mobile, AL

June 7, 2011Greene County, Perry County, Wayne County, Mississippi

NWS Mobile, AL issued this severe thunderstorm warning at Jun 7, 2011, 3:19 PM CDT for Greene County, Perry County, Wayne County, Mississippi. It was in force for 26 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
Jun 7, 2011, 3:19 PM CDT (20:19 UTC)
Expired
Jun 7, 2011, 3:45 PM CDT
In force
26 min
Issued by
NWS Mobile, AL
Area
Storm-based polygon

Counties Greene County, MS, Perry County, MS, Wayne County, MS

The radar

The Mobile radar (KMOB), 103 km from the middle of the area, began a volume at 20:21 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, 8.3 hours before the alert went out and 149 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 2011-06-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 639 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, Slidell Radar S, LA at 12:00Z on 2011-06-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 30 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
639 J/kg
Mixed-layer CIN
-166 J/kg
Mixed-layer LCL
1521 m above ground
0-6 km bulk shear
11 kt
0-1 km storm-relative helicity
30 m²/s²
0-3 km storm-relative helicity
53 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.

678 
WUUS54 KMOB 072019
SVRMOB
MSC041-111-153-072045-
/O.NEW.KMOB.SV.W.0086.110607T2019Z-110607T2045Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
319 PM CDT TUE JUN 7 2011

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHWESTERN GREENE COUNTY IN SOUTHEAST MISSISSIPPI...
  NORTHERN PERRY COUNTY IN SOUTHEAST MISSISSIPPI...
  THIS INCLUDES THE CITY OF RICHTON...
  SOUTHWESTERN WAYNE COUNTY IN SOUTHEAST MISSISSIPPI...

* UNTIL 345 PM CDT

* AT 317 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED 10
  MILES EAST OF RICHTON...OR 15 MILES NORTHEAST OF BEAUMONT...AND
  MOVING WEST AT 20 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  BREWER...MULBERRY...EAST SIDE...MCSWAIN...GOOD HOPE AND RHODES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...CONTINUOUS 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 3144 8905 3144 8894 3152 8893 3147 8863
      3122 8871 3132 8910
TIME...MOT...LOC 2019Z 108DEG 17KT 3135 8878

$$
1 follow-up statement
774 
WWUS54 KMOB 072033
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
333 PM CDT TUE JUN 7 2011

MSC041-111-153-072045-
/O.CON.KMOB.SV.W.0086.000000T0000Z-110607T2045Z/
PERRY MS-GREENE MS-WAYNE MS-
333 PM CDT TUE JUN 7 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 345 PM CDT
FOR SOUTHWESTERN WAYNE...NORTHWESTERN GREENE AND NORTHERN PERRY
COUNTIES...

AT 331 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 AVERA...OR 12 MILES EAST OF RICHTON...MOVING NORTHWEST 
AT 20 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
SMITHTOWN...PIAVE...SAND HILL...MCSWAIN...GOOD HOPE...EAST SIDE...
BREWER...MULBERRY AND RHODES

LAT...LON 3144 8905 3144 8894 3152 8893 3147 8863
      3122 8871 3132 8910
TIME...MOT...LOC 2033Z 108DEG 17KT 3131 8875

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 7, 2:29 PM CDTSevere Thunderstorm WarningMOBPerry, Wayne16 min
Jun 7, 2:31 PM CDTAreal Flood AdvisoryMOBPerry59 min
Jun 7, 2:50 PM CDTSevere Thunderstorm WarningMOBWayne25 min
Jun 7, 3:57 PM CDTSevere Thunderstorm WarningMOBGreene33 min
Jun 7, 4:22 PM CDTAreal Flood AdvisoryMOBGreene113 min
Jun 7, 4:46 PM CDTSevere Thunderstorm WarningMOBGreene, Wayne44 min
Jun 7, 5:18 PM CDTSevere Thunderstorm WarningMOBGreene42 min
Jun 7, 5:35 PM CDTFlash Flood WarningMOBGreene, Wayne4 hr
Jun 7, 6:08 PM CDTSevere Thunderstorm WarningMOBGreene, Wayne52 min
Jun 7, 6:17 PM CDTSevere Thunderstorm WarningMOBGreene43 min
Jun 7, 6:38 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.