Alert archive / Mississippi / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 99, NWS Mobile, AL

June 7, 2011Greene County, Wayne County, Mississippi; Washington County, Alabama

NWS Mobile, AL issued this severe thunderstorm warning at Jun 7, 2011, 6:08 PM CDT for Greene County, Wayne County, Mississippi; Washington County, Alabama. It was in force for 52 min. 3 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Jun 7, 2011, 6:08 PM CDT (23:08 UTC)
Expired: Jun 7, 2011, 7:00 PM CDT
In force: 52 min
Issued by: NWS Mobile, AL
Area: Storm-based polygon

Counties Washington County, AL, Greene County, MS, Wayne County, MS

The radar

The Mobile radar (KMOB), 75 km from the middle of the area, began a volume at 23:08 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.

What was reported inside it

Time	Report	Where	Remark
Jun 7, 6:08 PM CDT	HAIL 1	Topton, AL	QUARTER SIZE HAIL REPORTED.
Jun 7, 6:20 PM CDT	TSTM WND DMG	Vinegar Bend, AL	SEVERAL TREES BLOWN DOWN.
Jun 7, 6:27 PM CDT	TSTM WND DMG	Deer Park, AL	SEVERAL TREES BLOWN DOWN AROUND THE AREA. TREE ALSO BLOWN OVER ONTO HOME.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 11.1 hours before the alert went out and 191 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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.

466 
WUUS54 KMOB 072308
SVRMOB
ALC129-MSC041-153-080000-
/O.NEW.KMOB.SV.W.0099.110607T2308Z-110608T0000Z/

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

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN GREENE COUNTY IN SOUTHEAST MISSISSIPPI...
  THIS INCLUDES THE CITY OF LEAKESVILLE...
  SOUTHERN WAYNE COUNTY IN SOUTHEAST MISSISSIPPI...
  THIS INCLUDES THE CITY OF WAYNESBORO...
  WASHINGTON COUNTY IN SOUTHWEST ALABAMA...
  THIS INCLUDES THE CITY OF CHATOM...

* UNTIL 700 PM CDT

* AT 604 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE
  HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THESE STORMS WERE
  LOCATED ALONG A LINE EXTENDING FROM 15 MILES SOUTH OF BUTLER TO 6
  MILES EAST OF CITRONELLE...AND MOVING WEST AT 35 MPH.

* SEVERE THUNDERSTORMS WILL BE NEAR...
  MILLRY AROUND 615 PM CDT...
  STATE LINE AROUND 630 PM CDT...
  ROBINSON JUNCTION AND LEAKESVILLE AROUND 640 PM CDT...
  WAYNESBORO AROUND 645 PM CDT...

THIS IS AN EXTENSION OF THE PREVIOUS SEVERE THUNDERSTORM WARNING.

&&

LAT...LON 3170 8812 3129 8795 3127 8798 3124 8793
      3117 8795 3117 8799 3115 8802 3115 8880
      3171 8887
TIME...MOT...LOC 2307Z 104DEG 34KT 3188 8828 3110 8817

$$

2 follow-up statements

418 
WWUS54 KMOB 072341
SVSMOB

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

ALC129-MSC041-153-080000-
/O.CON.KMOB.SV.W.0099.000000T0000Z-110608T0000Z/
WASHINGTON AL-GREENE MS-WAYNE MS-
641 PM CDT TUE JUN 7 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 700 PM CDT
FOR SOUTHERN WAYNE...NORTHERN GREENE AND WESTERN WASHINGTON
COUNTIES...

AT 636 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER
SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THESE STORMS
WERE LOCATED ALONG A LINE EXTENDING FROM 20 MILES NORTH OF CHAPEL
HILL TO DEER PARK...OR ALONG A LINE EXTENDING FROM 13 MILES SOUTHWEST
OF BUTLER TO 8 MILES NORTH OF CITRONELLE...MOVING NORTHWEST AT 20
MPH.

SEVERE THUNDERSTORMS WILL BE NEAR...
  FOUR POINT BY 650 PM CDT...
  YELLOW PINE...WALLEY...COPELAND AND CHAPEL HILL BY 655 PM CDT...
  BELMONT...STATE LINE...ERET AND DENHAM BY 700 PM CDT...

LAT...LON 3170 8826 3157 8825 3115 8808 3115 8880
      3140 8883 3143 8883 3144 8884 3171 8887
TIME...MOT...LOC 2341Z 115DEG 17KT 3199 8842 3121 8831

$$

320 
WWUS54 KMOB 072357
SVSMOB

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

ALC129-MSC041-153-080008-
/O.EXP.KMOB.SV.W.0099.000000T0000Z-110608T0000Z/
WASHINGTON AL-GREENE MS-WAYNE MS-
657 PM CDT TUE JUN 7 2011

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN WAYNE...NORTHERN
GREENE AND WESTERN WASHINGTON COUNTIES WILL EXPIRE AT 700 PM CDT...

LAT...LON 3170 8826 3157 8825 3115 8808 3115 8880
      3140 8883 3143 8883 3144 8884 3171 8887
TIME...MOT...LOC 2358Z 115DEG 17KT 3202 8851 3124 8840

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 7, 2:29 PM CDT	Severe Thunderstorm Warning	MOB	Perry, Wayne	16 min
Jun 7, 2:31 PM CDT	Areal Flood Advisory	MOB	Perry	59 min
Jun 7, 2:50 PM CDT	Severe Thunderstorm Warning	MOB	Wayne	25 min
Jun 7, 3:19 PM CDT	Severe Thunderstorm Warning	MOB	Greene, Perry, Wayne	26 min
Jun 7, 3:57 PM CDT	Severe Thunderstorm Warning	MOB	Greene	33 min
Jun 7, 4:22 PM CDT	Areal Flood Advisory	MOB	Greene	113 min
Jun 7, 4:46 PM CDT	Severe Thunderstorm Warning	MOB	Greene, Wayne	44 min
Jun 7, 5:18 PM CDT	Severe Thunderstorm Warning	MOB	Greene	42 min
Jun 7, 5:35 PM CDT	Flash Flood Warning	MOB	Greene, Wayne	4 hr
Jun 7, 6:17 PM CDT	Severe Thunderstorm Warning	MOB	Greene	43 min
Jun 7, 6:38 PM CDT	Severe Thunderstorm Warning	MOB	George, Greene	37 min
Jun 7, 12:33 AM CDT	Special Marine Warning	MOB		87 min
Jun 7, 2:11 AM CDT	Special Marine Warning	MOB		94 min
Jun 7, 3:16 AM CDT	Special Marine Warning	MOB		44 min
Jun 7, 4:10 PM CDT	Severe Thunderstorm Warning	MOB	Escambia	35 min
Jun 7, 4:30 PM CDT	Severe Thunderstorm Warning	MOB	Conecuh, Escambia	45 min
Jun 7, 4:36 PM CDT	Severe Thunderstorm Warning	MOB	Monroe	39 min
Jun 7, 4:52 PM CDT	Severe Thunderstorm Warning	MOB	Baldwin, Clarke, Escambia, Monroe	38 min
Jun 7, 5:07 PM CDT	Severe Thunderstorm Warning	MOB	Clarke, Washington	16 min
Jun 7, 5:19 PM CDT	Severe Thunderstorm Warning	MOB	Baldwin, Clarke, Escambia, Monroe, Washington	41 min
Jun 7, 5:39 PM CDT	Severe Thunderstorm Warning	MOB	Baldwin, Choctaw, Clarke, Mobile, Monroe, Washington	51 min
Jun 7, 5:53 PM CDT	Severe Thunderstorm Warning	MOB	Washington	37 min
Jun 7, 6:47 PM CDT	Special Marine Warning	MOB		88 min

Nearby

Severe Thunderstorm Warnings in Mississippi, 2011 Severe Thunderstorm Warnings in Alabama, 2011 Every 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.