Alert archive / Mississippi / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 21, NWS Jackson, MS

January 23, 20124 counties in Mississippi

NWS Jackson, MS issued this severe thunderstorm warning at Jan 23, 2012, 12:44 AM CST for 4 counties in Mississippi. It was in force for 61 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: Jan 23, 2012, 12:44 AM CST (06:44 UTC)
Expired: Jan 23, 2012, 1:45 AM CST
In force: 61 min
Issued by: NWS Jackson, MS
Area: Storm-based polygon

Counties Kemper County, MS, Neshoba County, MS, Noxubee County, MS, Winston County, MS

The radar

The Columbus AFB radar (KGWX), 100 km from the middle of the area, began a volume at 06:47 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 watch it was issued in

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

Issued	Product	Office	Lasted
Jan 22, 10:59 PM CST	Tornado Watch	SPC	7 hr

The nearest sounding before it

Jackson, MS (KJAN), launched 00:00Z, 6.7 hours before the alert went out and 150 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 0 m above ground
0-6 km bulk shear: 42 kt
0-1 km storm-relative helicity: 318 m²/s²
0-3 km storm-relative helicity: 362 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 8.1

Open this sounding in Storm Lab

The text

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

254 
WUUS54 KJAN 230644
SVRJAN
MSC069-099-103-159-230745-
/O.NEW.KJAN.SV.W.0021.120123T0644Z-120123T0745Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE JACKSON MS
1244 AM CST MON JAN 23 2012

THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHWESTERN KEMPER COUNTY IN EAST CENTRAL MISSISSIPPI...
  THIS INCLUDES THE CITY OF PRESTON...
  NORTHERN NESHOBA COUNTY IN EAST CENTRAL MISSISSIPPI...
  THIS INCLUDES THE CITY OF PHILADELPHIA...
  NOXUBEE COUNTY IN EAST CENTRAL MISSISSIPPI...
  EASTERN WINSTON COUNTY IN EAST CENTRAL MISSISSIPPI...
  THIS INCLUDES THE CITY OF NANIH WAIYA...

* UNTIL 145 AM CST

* AT 1244 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 MILLCREEK TO PEARL RIVER MOVING NORTHEAST AT 50 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  BURNSIDE...VERNON...MASHULAVILLE...BROOKSVILLE...GHOLSON...
  DEERBROOK...MACON...BIGBEE VALLEY AND PRAIRIE POINT

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 600 AM CST MONDAY MORNING FOR
SOUTHEAST ARKANSAS AND NORTHEAST LOUISIANA AND MISSISSIPPI.

&&

LAT...LON 3313 8832 3268 8920 3274 8932 3321 8898
      3329 8877 3329 8830
TIME...MOT...LOC 0644Z 239DEG 43KT 3315 8884 3278 8920

$$

BYB

1 follow-up statement

924 
WWUS54 KJAN 230721
SVSJAN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
121 AM CST MON JAN 23 2012

MSC069-099-103-159-230745-
/O.CON.KJAN.SV.W.0021.000000T0000Z-120123T0745Z/
WINSTON MS-NOXUBEE MS-NESHOBA MS-KEMPER MS-
121 AM CST MON JAN 23 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 145 AM CST
FOR NORTHWESTERN KEMPER...NORTHEASTERN NESHOBA...NOXUBEE AND
SOUTHEASTERN WINSTON COUNTIES...

AT 121 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 DEERBROOK TO NANIH WAIYA MOVING NORTHEAST AT 35 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
PRESTON...MACON...GHOLSON...BIGBEE VALLEY AND PRAIRIE POINT

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 600 AM CST MONDAY MORNING FOR
SOUTHEAST ARKANSAS AND NORTHEAST LOUISIANA AND MISSISSIPPI.

&&

LAT...LON 3274 8910 3286 8907 3329 8863 3329 8830
      3313 8832 3273 8910
TIME...MOT...LOC 0721Z 247DEG 30KT 3325 8851 3288 8892

$$

BYB

The office that day

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

Issued	Product	Office	Counties	Lasted
Jan 22, 10:06 PM CST	Severe Thunderstorm Warning	JAN	Bolivar, Sunflower	39 min
Jan 22, 10:36 PM CST	Severe Thunderstorm Warning	JAN	Bolivar, Washington	54 min
Jan 22, 10:41 PM CST	Special Weather Statement	JAN	Webster	44 min
Jan 22, 10:57 PM CST	Severe Thunderstorm Warning	JAN	Clay, Webster	26 min
Jan 22, 11:17 PM CST	Severe Thunderstorm Warning	JAN	Bolivar, Sunflower	28 min
Jan 22, 11:25 PM CST	Special Weather Statement	JAN	Clay	30 min
Jan 22, 11:32 PM CST	Special Weather Statement	JAN	Leake	28 min
Jan 22, 11:36 PM CST	Special Weather Statement	JAN	Copiah	29 min
Jan 22, 11:42 PM CST	Special Weather Statement	JAN	Webster	28 min
Jan 22, 11:47 PM CST	Severe Thunderstorm Warning	JAN	Webster	26 min
Jan 22, 11:49 PM CST	Severe Thunderstorm Warning	JAN	Copiah, Simpson	41 min
Jan 22, 11:54 PM CST	Tornado Warning	JAN	Copiah, Simpson	36 min
Jan 22, 11:59 PM CST	Severe Thunderstorm Warning	JAN	Rankin, Scott	61 min
Jan 23, 12:15 AM CST	Special Weather Statement	JAN	Leflore	30 min
Jan 23, 12:27 AM CST	Tornado Warning	JAN	Rankin, Scott, Smith	48 min
Jan 23, 12:39 AM CST	Special Weather Statement	JAN	Grenada	31 min
Jan 23, 12:39 AM CST	Severe Thunderstorm Warning	JAN	Neshoba, Newton, Scott	51 min
Jan 23, 12:48 AM CST	Severe Thunderstorm Warning	JAN	Grenada, Leflore	42 min
Jan 23, 12:56 AM CST	Tornado Warning	JAN	Neshoba, Newton, Scott	49 min
Jan 23, 12:58 AM CST	Severe Thunderstorm Warning	JAN	Issaquena, Sharkey, Yazoo	33 min
Jan 23, 1:19 AM CST	Severe Thunderstorm Warning	JAN	Lowndes	35 min
Jan 23, 1:32 AM CST	Tornado Warning	JAN	Kemper, Noxubee	58 min
Jan 23, 1:34 AM CST	Special Weather Statement	JAN	Rankin	31 min
Jan 23, 1:44 AM CST	Severe Thunderstorm Warning	JAN	Noxubee	31 min
Jan 23, 1:50 AM CST	Special Weather Statement	JAN	Newton	30 min
Jan 23, 2:05 AM CST	Tornado Warning	JAN	Noxubee	12 min
Jan 23, 2:10 AM CST	Severe Thunderstorm Warning	JAN	Lauderdale, Newton	65 min
Jan 23, 2:14 AM CST	Tornado Warning	JAN	Kemper, Lauderdale, Newton	61 min
Jan 23, 2:30 AM CST	Special Weather Statement	JAN	Scott	30 min
Jan 23, 2:35 AM CST	Special Weather Statement	JAN	Lowndes	40 min
Jan 23, 2:41 AM CST	Special Weather Statement	JAN	Simpson	39 min
Jan 23, 2:54 AM CST	Severe Thunderstorm Warning	JAN	Simpson	51 min
Jan 23, 2:57 AM CST	Special Weather Statement	JAN	Clarke, Jasper	33 min
Jan 23, 3:02 AM CST	Tornado Warning	JAN	Jasper	13 min
Jan 23, 3:11 AM CST	Tornado Warning	JAN	Clarke	49 min
Jan 23, 3:24 AM CST	Special Weather Statement	JAN	Smith	31 min
Jan 23, 3:31 AM CST	Severe Thunderstorm Warning	JAN	Kemper, Lauderdale	44 min
Jan 23, 3:44 AM CST	Tornado Warning	JAN	Lauderdale	16 min
Jan 23, 4:27 AM CST	Special Weather Statement	JAN	Clarke, Covington, Jasper, Jones, Lamar, Lauderdale and 1 more	58 min
Jan 23, 5:16 AM CST	Special Weather Statement	JAN	Forrest	19 min
Jan 23, 5:22 AM CST	Special Weather Statement	JAN	Lamar, Marion	18 min
Jan 23, 5:46 AM CST	Special Weather Statement	JAN	Lamar	19 min
Jan 23, 6:40 AM CST	Special Weather Statement	JAN	Forrest	15 min

Nearby

Severe Thunderstorm Warnings in Mississippi, 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.