Alert archive / Mississippi / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 708, NWS Jackson, MS

December 22, 2011Forrest County, Lamar County, Mississippi

NWS Jackson, MS issued this severe thunderstorm warning at Dec 22, 2011, 11:09 AM CST for Forrest County, Lamar County, Mississippi. It was in force for 39 min. 2 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: Dec 22, 2011, 11:09 AM CST (17:09 UTC)
Expired: Dec 22, 2011, 11:48 AM CST
In force: 39 min
Issued by: NWS Jackson, MS
Area: Storm-based polygon

Counties Forrest County, MS, Lamar County, MS

The radar

The Mobile radar (KMOB), 116 km from the middle of the area, began a volume at 17:10 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
Dec 22, 11:18 AM CST	TSTM WND DMG	West Hattiesburg, MS	ROOF DAMAGE AT PARK PLACE APARTMENTS AND WINDOWS BLOWN OUT OF VEHICLES AT TURTLECREEK MALL. SIDING AND SHINGLE DAMAGE ALSO REPORTED BY WDAM AT INTERSTATE 59 AND HARDY STREET.
Dec 22, 11:40 AM CST	TSTM WND DMG	15 Se Sumrall, MS	3 APARTMENTS WERE DAMAGED AT THE PARKPLACE APARTMENTS ON WESTOVER DRIVE. WINDOWS WERE BUSTED OUT. ROOFS WERE DAMAGED. TREES WERE UPROOTED.

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

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Dec 22, 4:36 AM CST	Tornado Watch	SPC	7 hr

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 5.2 hours before the alert went out and 98 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: 578 J/kg
Mixed-layer CIN: -18 J/kg
Mixed-layer LCL: 476 m above ground
0-6 km bulk shear: 58 kt
0-1 km storm-relative helicity: 244 m²/s²
0-3 km storm-relative helicity: 297 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 3.4

Open this sounding in Storm Lab

The text

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

655 
WUUS54 KJAN 221709
SVRJAN
MSC035-073-221800-
/O.NEW.KJAN.SV.W.0708.111222T1709Z-111222T1800Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE JACKSON MS
1109 AM CST THU DEC 22 2011

THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  FORREST COUNTY IN SOUTHEAST MISSISSIPPI...
  THIS INCLUDES THE CITIES OF...PETAL...HATTIESBURG...
  SOUTHEASTERN LAMAR COUNTY IN SOUTHEAST MISSISSIPPI...
  THIS INCLUDES THE CITY OF WEST HATTIESBURG...

* UNTIL NOON CST

* AT 1109 AM CST...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN
  EXCESS OF 60 MPH.  THESE STORMS WERE LOCATED ALONG A LINE EXTENDING
  FROM PURVIS TO 9 MILES SOUTHWEST OF LUMBERTON MOVING NORTHEAST AT
  75 MPH.

* SEVERE THUNDERSTORMS WILL BE NEAR...
  WEST HATTIESBURG...RAWLS SPRINGS AND PURVIS BY 1115 AM CST...
  ROCK HILL...PETAL AND HATTIESBURG BY 1120 AM CST...
  SUNRISE...MCLAURIN AND BROOKLYN BY 1125 AM CST...
  MACEDONIA BY 1130 AM CST...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

WINDS OF 60 MPH CAN BRING DOWN TREES...POSSIBLY RESULTING IN INJURY
AND PROPERTY DAMAGE. ROOFS OF MOBILE HOMES AND OUTBUILDINGS COULD BE
DAMAGED...AND MINOR ROOF DAMAGE TO WELL BUILT HOMES AND STRUCTURES
COULD OCCUR.

A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. IF A TORNADO
IS SPOTTED... ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A STURDY
STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM.

&&

LAT...LON 3100 8949 3101 8953 3143 8937 3143 8914
      3107 8914 3105 8915 3098 8935 3100 8935
      3100 8941 3098 8943 3097 8947
TIME...MOT...LOC 1709Z 225DEG 65KT 3123 8943 3098 8951

$$

CME

3 follow-up statements

571 
WWUS54 KJAN 221717
SVSJAN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
1117 AM CST THU DEC 22 2011

MSC035-073-221800-
/O.CON.KJAN.SV.W.0708.000000T0000Z-111222T1800Z/
LAMAR MS-FORREST MS-
1117 AM CST THU DEC 22 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL NOON CST FOR
FORREST AND SOUTHEASTERN LAMAR COUNTIES...

AT 1117 AM CST...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE
TRACKING A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING
WINDS IN EXCESS OF 60 MPH.  THESE STORMS WERE LOCATED ALONG A LINE
EXTENDING FROM PURVIS TO LUMBERTON MOVING NORTHEAST AT 60 MPH.

SEVERE THUNDERSTORMS WILL BE NEAR...
  HATTIESBURG...WEST HATTIESBURG AND ROCK HILL BY 1125 AM CST...
  PETAL...RAWLS SPRINGS...SUNRISE AND BROOKLYN BY 1130 AM CST...
  MACEDONIA AND MCLAURIN BY 1135 AM CST...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

WINDS OF 60 MPH CAN BRING DOWN TREES...POSSIBLY RESULTING IN INJURY
AND PROPERTY DAMAGE. ROOFS OF MOBILE HOMES AND OUTBUILDINGS COULD BE
DAMAGED...AND MINOR ROOF DAMAGE TO WELL BUILT HOMES AND STRUCTURES
COULD OCCUR.

A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. IF A TORNADO
IS SPOTTED... ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A STURDY
STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 100 PM CST THURSDAY AFTERNOON
FOR SOUTHEASTERN MISSISSIPPI.

&&

LAT...LON 3100 8949 3101 8953 3143 8937 3143 8914
      3107 8914 3105 8915 3098 8935 3100 8935
      3100 8941 3098 8943 3097 8947
TIME...MOT...LOC 1717Z 224DEG 54KT 3116 8939 3102 8945

$$

CME

003 
WWUS54 KJAN 221734
SVSJAN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
1134 AM CST THU DEC 22 2011

MSC073-221744-
/O.CAN.KJAN.SV.W.0708.000000T0000Z-111222T1800Z/
LAMAR MS-
1134 AM CST THU DEC 22 2011

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

A TORNADO WATCH REMAINS IN EFFECT UNTIL 100 PM CST THURSDAY AFTERNOON
FOR SOUTHEASTERN MISSISSIPPI.

LAT...LON 3105 8915 3098 8935 3122 8933 3142 8924
      3143 8914 3107 8914
TIME...MOT...LOC 1734Z 224DEG 54KT 3130 8919 3116 8925

$$

MSC035-221800-
/O.CON.KJAN.SV.W.0708.000000T0000Z-111222T1800Z/
FORREST MS-
1134 AM CST THU DEC 22 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL NOON CST FOR
FORREST COUNTY...

AT 1134 AM CST...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE
TRACKING A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING
WINDS IN EXCESS OF 60 MPH.  THESE STORMS WERE LOCATED ALONG A LINE
EXTENDING FROM SUNRISE TO MCLAURIN MOVING NORTHEAST AT 60 MPH.

SEVERE THUNDERSTORMS WILL BE NEAR...
  MACEDONIA BY 1140 AM CST...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

WINDS OF 60 MPH CAN BRING DOWN TREES...POSSIBLY RESULTING IN INJURY
AND PROPERTY DAMAGE. ROOFS OF MOBILE HOMES AND OUTBUILDINGS COULD BE
DAMAGED...AND MINOR ROOF DAMAGE TO WELL BUILT HOMES AND STRUCTURES
COULD OCCUR.

A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. IF A TORNADO
IS SPOTTED... ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A STURDY
STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 100 PM CST THURSDAY AFTERNOON
FOR SOUTHEASTERN MISSISSIPPI.

&&

LAT...LON 3105 8915 3098 8935 3122 8933 3142 8924
      3143 8914 3107 8914
TIME...MOT...LOC 1734Z 224DEG 54KT 3130 8919 3116 8925

$$

CME

846 
WWUS54 KJAN 221748
SVSJAN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
1148 AM CST THU DEC 22 2011

MSC035-221758-
/O.CAN.KJAN.SV.W.0708.000000T0000Z-111222T1800Z/
FORREST MS-
1148 AM CST THU DEC 22 2011

...THE SEVERE THUNDERSTORM WARNING FOR FORREST COUNTY IS CANCELLED...

THE STORM THAT PROMPTED THE SEVERE THUNDERSTORM WARNING HAS MOVED OUT
OF THE COUNTY.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 100 PM CST THURSDAY AFTERNOON
FOR SOUTHEASTERN MISSISSIPPI.

LAT...LON 3105 8915 3098 8935 3122 8933 3142 8924
      3143 8914 3107 8914
TIME...MOT...LOC 1748Z 224DEG 54KT 3145 8902 3131 8908

$$

CME

The office that day

Everything else NWS Jackson, MS issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Dec 22, 2:08 AM CST	Special Weather Statement	JAN	Yazoo	32 min
Dec 22, 3:38 AM CST	Dense Fog Advisory	JAN	Clarke, Covington, Forrest, Jasper, Jefferson Davis, Jones and 6 more	5 hr
Dec 22, 4:59 AM CST	Flash Flood Warning	JAN	Bolivar, Sunflower, Washington	3 hr
Dec 22, 5:09 AM CST	Flash Flood Watch	JAN	Adams, Attala, Bolivar, Carroll, Choctaw, Claiborne and 25 more	7 hr
Dec 22, 6:04 AM CST	Flash Flood Warning	JAN	Carroll, Grenada, Humphreys, Leflore, Montgomery	3 hr
Dec 22, 8:01 AM CST	Special Weather Statement	JAN	Lincoln	29 min
Dec 22, 8:39 AM CST	Special Weather Statement	JAN	Lawrence	31 min
Dec 22, 8:49 AM CST	Severe Thunderstorm Warning	JAN	Copiah, Simpson	26 min
Dec 22, 8:59 AM CST	Severe Thunderstorm Warning	JAN	Lawrence, Lincoln	46 min
Dec 22, 9:15 AM CST	Severe Thunderstorm Warning	JAN	Jasper, Rankin, Simpson, Smith	45 min
Dec 22, 9:40 AM CST	Severe Thunderstorm Warning	JAN	Jefferson Davis, Lawrence, Marion	50 min
Dec 22, 10:11 AM CST	Severe Thunderstorm Warning	JAN	Covington, Jefferson Davis	49 min
Dec 22, 10:14 AM CST	Special Weather Statement	JAN	Newton, Smith	31 min
Dec 22, 10:22 AM CST	Severe Thunderstorm Warning	JAN	Lamar, Marion	53 min
Dec 22, 10:48 AM CST	Severe Thunderstorm Warning	JAN	Kemper, Lauderdale, Newton	31 min
Dec 22, 10:52 AM CST	Severe Thunderstorm Warning	JAN	Clarke, Jasper	38 min
Dec 22, 11:25 AM CST	Severe Thunderstorm Warning	JAN	Clarke, Lauderdale	31 min
Dec 22, 11:32 AM CST	Severe Thunderstorm Warning	JAN	Jones	16 min
Dec 22, 11:56 AM CST	River Flood Advisory	JAN	Bolivar, Washington	10 min
Dec 22, 11:56 AM CST	River Flood Advisory	JAN	Issaquena, Washington	10 min
Dec 22, 11:56 AM CST	River Flood Advisory	JAN	Claiborne, Jefferson, Warren	10 min
Dec 22, 11:56 AM CST	River Flood Advisory	JAN	Adams, Wilkinson	10 min

Nearby

Severe Thunderstorm Warnings in Mississippi, 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.