Alert archive / Mississippi / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 474, NWS Jackson, MS

August 9, 2012Issaquena County, Sharkey County, Warren County, Mississippi; East Carroll Parish, Louisiana

NWS Jackson, MS issued this severe thunderstorm warning at Aug 9, 2012, 8:10 PM CDT for Issaquena County, Sharkey County, Warren County, Mississippi; East Carroll Parish, Louisiana. It was in force for 23 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: Aug 9, 2012, 8:10 PM CDT (01:10 UTC)
Expired: Aug 9, 2012, 8:33 PM CDT
In force: 23 min
Issued by: NWS Jackson, MS
Area: Storm-based polygon

Counties East Carroll Parish, LA, Issaquena County, MS, Sharkey County, MS, Warren County, MS

The radar

The Jackson/Brandon,MS radar (KDGX), 91 km from the middle of the area, began a volume at 01:11 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

Jackson, MS (KJAN), launched 00:00Z, 1.2 hours before the alert went out and 81 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: 1206 J/kg
Mixed-layer CIN: -81 J/kg
Mixed-layer LCL: 953 m above ground
0-6 km bulk shear: 42 kt
0-1 km storm-relative helicity: 160 m²/s²
0-3 km storm-relative helicity: 239 m²/s²
Significant tornado parameter: 0.8
Supercell composite: 10.3

Open this sounding in Storm Lab

The text

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

153 
WUUS54 KJAN 100110
SVRJAN
LAC035-MSC055-125-149-100215-
/O.NEW.KJAN.SV.W.0474.120810T0110Z-120810T0215Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE JACKSON MS
810 PM CDT THU AUG 9 2012

THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EAST CENTRAL EAST CARROLL PARISH IN NORTHEAST LOUISIANA...
  SOUTHERN ISSAQUENA COUNTY IN WEST CENTRAL MISSISSIPPI...
  THIS INCLUDES THE CITY OF VALLEY PARK...
  SOUTHWESTERN SHARKEY COUNTY IN WEST CENTRAL MISSISSIPPI...
  NORTH CENTRAL WARREN COUNTY IN WEST CENTRAL MISSISSIPPI...

* UNTIL 915 PM CDT

* AT 810 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR
  FITLER MOVING SOUTHEAST AT 20 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  ONWARD AND EAGLE BEND

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.

&&

LAT...LON 3277 9106 3267 9072 3265 9073 3263 9069
      3262 9072 3261 9069 3240 9089 3265 9116
TIME...MOT...LOC 0110Z 311DEG 16KT 3266 9105

$$

BK

1 follow-up statement

055 
WWUS54 KJAN 100133
SVSJAN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
833 PM CDT THU AUG 9 2012

LAC035-MSC055-125-149-100143-
/O.CAN.KJAN.SV.W.0474.000000T0000Z-120810T0215Z/
WARREN MS-SHARKEY MS-ISSAQUENA MS-EAST CARROLL LA-
833 PM CDT THU AUG 9 2012

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN ISSAQUENA...
SOUTHWESTERN SHARKEY AND NORTH CENTRAL WARREN COUNTIES...AND EAST
CENTRAL EAST CARROLL PARISH IS CANCELLED...

THE STORM THAT PROMPTED THE SEVERE THUNDERSTORM WARNING HAS WEAKENED
BELOW SEVERE LIMITS.

LAT...LON 3277 9106 3267 9072 3265 9073 3263 9069
      3262 9072 3261 9069 3240 9089 3265 9116
TIME...MOT...LOC 0133Z 311DEG 16KT 3259 9096

$$

BK

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 9, 7:00 PM CDT	Special Weather Statement	JAN	Warren	30 min
Aug 9, 7:29 PM CDT	Special Weather Statement	JAN	Warren	31 min
Aug 9, 8:01 PM CDT	Special Weather Statement	JAN	Issaquena	29 min
Aug 9, 8:54 PM CDT	Special Weather Statement	JAN	Warren	31 min
Aug 10, 3:23 AM CDT	Special Weather Statement	JAN	Warren	47 min
Aug 10, 7:54 AM CDT	Special Weather Statement	JAN	Lincoln	46 min
Aug 10, 10:15 AM CDT	Special Weather Statement	JAN	Adams	45 min
Aug 10, 2:19 PM CDT	Special Weather Statement	JAN	Clay	46 min
Aug 10, 2:38 PM CDT	Special Weather Statement	JAN	Grenada	42 min
Aug 10, 2:47 PM CDT	Severe Thunderstorm Warning	JAN	Clay	43 min
Aug 10, 3:33 PM CDT	Special Weather Statement	JAN	Clay	32 min
Aug 10, 4:08 PM CDT	Special Weather Statement	JAN	Franklin	32 min
Aug 10, 4:20 PM CDT	Severe Thunderstorm Warning	JAN	Franklin, Jefferson	55 min
Aug 10, 4:24 PM CDT	Special Weather Statement	JAN	Warren	31 min
Aug 10, 4:43 PM CDT	Severe Thunderstorm Warning	JAN	Adams, Franklin	32 min
Aug 10, 4:45 PM CDT	Special Weather Statement	JAN	Lauderdale	30 min
Aug 10, 4:49 PM CDT	Severe Thunderstorm Warning	JAN	Claiborne, Hinds, Warren	56 min
Aug 10, 5:10 PM CDT	Severe Thunderstorm Warning	JAN	Adams, Franklin	65 min
Aug 10, 5:13 PM CDT	Special Weather Statement	JAN	Jefferson Davis	32 min
Aug 10, 5:30 PM CDT	Flash Flood Warning	JAN	Adams, Franklin	2 hr
Aug 10, 5:42 PM CDT	Severe Thunderstorm Warning	JAN	Adams, Claiborne, Jefferson	63 min
Aug 10, 5:46 PM CDT	Special Weather Statement	JAN	Claiborne	29 min
Aug 10, 5:55 PM CDT	Special Weather Statement	JAN	Scott	30 min
Aug 10, 6:00 PM CDT	Severe Thunderstorm Warning	JAN	Claiborne, Warren	45 min
Aug 10, 6:04 PM CDT	Severe Thunderstorm Warning	JAN	Adams	56 min
Aug 10, 6:10 PM CDT	Special Weather Statement	JAN	Covington	30 min
Aug 10, 6:22 PM CDT	Flash Flood Warning	JAN	Adams, Jefferson	79 min
Aug 10, 6:25 PM CDT	Severe Thunderstorm Warning	JAN	Adams, Franklin, Jefferson	37 min
Aug 10, 6:41 PM CDT	Special Weather Statement	JAN	Winston	29 min
Aug 10, 6:57 PM CDT	Special Weather Statement	JAN	Lauderdale	28 min
Aug 9, 7:09 PM CDT	Special Weather Statement	JAN	Morehouse, West Carroll	31 min
Aug 9, 7:21 PM CDT	Special Weather Statement	JAN	Madison	29 min
Aug 9, 7:24 PM CDT	Severe Thunderstorm Warning	JAN	Morehouse, West Carroll	66 min
Aug 9, 7:32 PM CDT	Special Weather Statement	JAN	Morehouse	33 min
Aug 9, 7:41 PM CDT	Severe Thunderstorm Warning	JAN	Madison, Tensas	64 min
Aug 9, 7:52 PM CDT	Severe Thunderstorm Warning	JAN	Morehouse, Richland	53 min
Aug 9, 8:31 PM CDT	Severe Thunderstorm Warning	JAN	Morehouse, Richland	44 min
Aug 9, 8:42 PM CDT	Severe Thunderstorm Warning	JAN	Franklin, Madison, Tensas	63 min
Aug 9, 8:45 PM CDT	Severe Thunderstorm Warning	JAN	Franklin, Richland	60 min
Aug 9, 9:11 PM CDT	Severe Thunderstorm Warning	JAN	Catahoula, Franklin, Richland, Tensas	64 min
Aug 9, 9:44 PM CDT	Severe Thunderstorm Warning	JAN	Franklin, Richland	46 min
Aug 9, 9:52 PM CDT	Severe Thunderstorm Warning	JAN	Catahoula, Concordia, Tensas	53 min
Aug 9, 9:55 PM CDT	Severe Thunderstorm Warning	JAN	Morehouse, West Carroll	65 min
Aug 9, 10:00 PM CDT	Flash Flood Warning	JAN	Catahoula, Franklin, Richland	3 hr
Aug 9, 10:11 PM CDT	Severe Thunderstorm Warning	JAN	Franklin, Richland	49 min
Aug 9, 10:21 PM CDT	Flash Flood Warning	JAN	East Carroll, Morehouse, Richland, West Carroll	114 min
Aug 9, 10:41 PM CDT	Severe Thunderstorm Warning	JAN	Morehouse, Richland, West Carroll	49 min
Aug 9, 10:43 PM CDT	Severe Thunderstorm Warning	JAN	Catahoula, Concordia	62 min
Aug 9, 11:15 PM CDT	Special Weather Statement	JAN	West Carroll	30 min
Aug 9, 11:27 PM CDT	Special Weather Statement	JAN	West Carroll	28 min
Aug 10, 4:34 PM CDT	Severe Thunderstorm Warning	JAN	Catahoula, Franklin	56 min
Aug 10, 5:16 PM CDT	Special Weather Statement	JAN	Tensas	29 min
Aug 10, 6:59 PM CDT	Severe Thunderstorm Warning	JAN	Catahoula, Concordia	61 min

Nearby

Severe Thunderstorm Warnings in Mississippi, 2012 Severe Thunderstorm Warnings in Louisiana, 2012 Every severe thunderstorm warning in 2012

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.