Alert archive / Mississippi / Tornado Warnings in 2012

Tornado Warning 37, NWS Jackson, MS

March 21, 2012Jasper County, Mississippi

NWS Jackson, MS issued this tornado warning at Mar 21, 2012, 5:34 PM CDT for Jasper County, Mississippi. It was in force for 44 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: Mar 21, 2012, 5:34 PM CDT (22:34 UTC)
Expired: Mar 21, 2012, 6:18 PM CDT
In force: 44 min
Issued by: NWS Jackson, MS
Area: Storm-based polygon

County Jasper County, MS

The radar

The Jackson/Brandon,MS radar (KDGX), 93 km from the middle of the area, began a volume at 22:34 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
Mar 21, 10:07 AM CDT	Tornado Watch	SPC	8 hr

The nearest sounding before it

Jackson, MS (KJAN), launched 12:00Z, 10.6 hours before the alert went out and 103 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: 143 J/kg
Mixed-layer CIN: -17 J/kg
Mixed-layer LCL: 559 m above ground
0-6 km bulk shear: 42 kt
0-1 km storm-relative helicity: 239 m²/s²
0-3 km storm-relative helicity: 239 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.8

Open this sounding in Storm Lab

The text

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

601 
WFUS54 KJAN 212234
TORJAN
MSC061-212330-
/O.NEW.KJAN.TO.W.0037.120321T2234Z-120321T2330Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE JACKSON MS
534 PM CDT WED MAR 21 2012

THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHERN JASPER COUNTY IN EAST CENTRAL MISSISSIPPI...
  THIS INCLUDES THE CITY OF STRINGER...

* UNTIL 630 PM CDT

* AT 534 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 9 MILES
  SOUTHWEST OF MOSS MOVING NORTHEAST AT 25 MPH.

* THE TORNADO WILL BE NEAR...
  MOSS AND STRINGER BY 550 PM CDT...
  HEIDELBERG BY 610 PM CDT...
  TURNERVILLE BY 615 PM CDT...
  PAULDING BY 625 PM CDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WARNING MEANS THAT A TORNADO IS OCCURRING OR IMMINENT. YOU
SHOULD ACTIVATE YOUR TORNADO ACTION PLAN AND TAKE PROTECTIVE ACTION
NOW.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 600 PM CDT WEDNESDAY EVENING
FOR SOUTHEASTERN MISSISSIPPI.

&&

LAT...LON 3182 8899 3180 8927 3181 8932 3209 8919
      3200 8893
TIME...MOT...LOC 2234Z 208DEG 24KT 3174 8925

$$

MME

3 follow-up statements

107 
WWUS54 KJAN 212249
SVSJAN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
549 PM CDT WED MAR 21 2012

MSC061-212330-
/O.CON.KJAN.TO.W.0037.000000T0000Z-120321T2330Z/
JASPER MS-
549 PM CDT WED MAR 21 2012

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 630 PM CDT FOR SOUTHERN
JASPER COUNTY...

AT 550 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUE TO
TRACK A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS
TORNADO WAS LOCATED NEAR MOSS MOVING NORTHEAST AT 30 MPH.

THE TORNADO WILL BE NEAR...
  TURNERVILLE BY 615 PM CDT...
  PAULDING BY 625 PM CDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WARNING MEANS THAT A TORNADO IS OCCURRING OR IMMINENT. YOU
SHOULD ACTIVATE YOUR TORNADO ACTION PLAN AND TAKE PROTECTIVE ACTION
NOW.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 600 PM CDT WEDNESDAY EVENING
FOR SOUTHEASTERN MISSISSIPPI.

&&

LAT...LON 3182 8909 3180 8921 3181 8927 3205 8920
      3208 8918 3200 8893
TIME...MOT...LOC 2250Z 208DEG 24KT 3183 8919

$$

MME

366 
WWUS54 KJAN 212305
SVSJAN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
605 PM CDT WED MAR 21 2012

MSC061-212330-
/O.CON.KJAN.TO.W.0037.000000T0000Z-120321T2330Z/
JASPER MS-
605 PM CDT WED MAR 21 2012

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 630 PM CDT FOR SOUTHERN
JASPER COUNTY...

AT 605 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUE TO
TRACK A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS
TORNADO WAS LOCATED 7 MILES NORTH OF MOSS MOVING NORTH AT 30 MPH.

THE TORNADO WILL BE NEAR...
  TURNERVILLE BY 615 PM CDT...
  PAULDING BY 620 PM CDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WARNING MEANS THAT A TORNADO IS OCCURRING OR IMMINENT. YOU
SHOULD ACTIVATE YOUR TORNADO ACTION PLAN AND TAKE PROTECTIVE ACTION
NOW.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 100 AM CDT THURSDAY MORNING
FOR SOUTHEASTERN MISSISSIPPI.

&&

LAT...LON 3182 8909 3181 8921 3181 8927 3205 8920
      3208 8918 3200 8893
TIME...MOT...LOC 2305Z 199DEG 26KT 3194 8916

$$

530 
WWUS54 KJAN 212318
SVSJAN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
618 PM CDT WED MAR 21 2012

MSC061-212328-
/O.CAN.KJAN.TO.W.0037.000000T0000Z-120321T2330Z/
JASPER MS-
618 PM CDT WED MAR 21 2012

...THE TORNADO WARNING FOR SOUTHERN JASPER COUNTY IS CANCELLED...

THE STORM THAT PROMPTED THE TORNADO WARNING HAS WEAKENED.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 100 AM CDT THURSDAY MORNING
FOR SOUTHEASTERN MISSISSIPPI.

LAT...LON 3182 8909 3181 8921 3181 8927 3205 8920
      3208 8918 3200 8893
TIME...MOT...LOC 2318Z 199DEG 26KT 3203 8912

$$

MME

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 21, 9:42 AM CDT	Severe Thunderstorm Warning	JAN	Adams	40 min
Mar 21, 10:10 AM CDT	Special Weather Statement	JAN	Jefferson	60 min
Mar 21, 10:18 AM CDT	Severe Thunderstorm Warning	JAN	Franklin, Jefferson	42 min
Mar 21, 10:20 AM CDT	Areal Flood Warning	JAN	Adams	3 hr
Mar 21, 10:24 AM CDT	Tornado Warning	JAN	Jefferson	27 min
Mar 21, 10:29 AM CDT	Tornado Warning	JAN	Claiborne, Jefferson	40 min
Mar 21, 10:35 AM CDT	Severe Thunderstorm Warning	JAN	Franklin, Lincoln	55 min
Mar 21, 10:48 AM CDT	Severe Thunderstorm Warning	JAN	Warren	57 min
Mar 21, 10:55 AM CDT	Tornado Warning	JAN	Claiborne, Warren	33 min
Mar 21, 11:05 AM CDT	Special Weather Statement	JAN	Copiah	45 min
Mar 21, 11:17 AM CDT	Severe Thunderstorm Warning	JAN	Copiah	58 min
Mar 21, 11:25 AM CDT	Special Weather Statement	JAN	Hinds	60 min
Mar 21, 11:32 AM CDT	Severe Thunderstorm Warning	JAN	Issaquena, Sharkey, Yazoo	58 min
Mar 21, 11:34 AM CDT	Special Weather Statement	JAN	Lawrence	31 min
Mar 21, 11:40 AM CDT	Special Weather Statement	JAN	Hinds	60 min
Mar 21, 11:44 AM CDT	Special Weather Statement	JAN	Lincoln	31 min
Mar 21, 12:05 PM CDT	Severe Thunderstorm Warning	JAN	Yazoo	55 min
Mar 21, 12:09 PM CDT	Severe Thunderstorm Warning	JAN	Lawrence	51 min
Mar 21, 12:14 PM CDT	Special Weather Statement	JAN	Forrest	61 min
Mar 21, 12:20 PM CDT	Special Weather Statement	JAN	Madison	60 min
Mar 21, 12:38 PM CDT	Severe Thunderstorm Warning	JAN	Marion	37 min
Mar 21, 12:42 PM CDT	Special Weather Statement	JAN	Rankin	58 min
Mar 21, 12:56 PM CDT	Special Weather Statement	JAN	Yazoo	29 min
Mar 21, 1:10 PM CDT	Severe Thunderstorm Warning	JAN	Covington, Forrest, Jefferson Davis, Lamar, Marion	65 min
Mar 21, 1:18 PM CDT	Special Weather Statement	JAN	Hinds	52 min
Mar 21, 1:26 PM CDT	Special Weather Statement	JAN	Madison	49 min
Mar 21, 1:29 PM CDT	Special Weather Statement	JAN	Simpson, Smith	61 min
Mar 21, 1:55 PM CDT	Special Weather Statement	JAN	Rankin	50 min
Mar 21, 2:05 PM CDT	Tornado Warning	JAN	Rankin	21 min
Mar 21, 2:21 PM CDT	Special Weather Statement	JAN	Scott	59 min
Mar 21, 2:25 PM CDT	Tornado Warning	JAN	Scott	30 min
Mar 21, 2:37 PM CDT	Severe Thunderstorm Warning	JAN	Forrest, Lamar	53 min
Mar 21, 2:47 PM CDT	Tornado Warning	JAN	Forrest, Lamar	16 min
Mar 21, 3:03 PM CDT	River Flood Warning	JAN	Attala, Holmes	8 days
Mar 21, 3:22 PM CDT	Special Weather Statement	JAN	Neshoba, Winston	58 min
Mar 21, 3:28 PM CDT	Tornado Warning	JAN	Forrest, Jones, Lamar	44 min
Mar 21, 3:32 PM CDT	Severe Thunderstorm Warning	JAN	Kemper, Neshoba, Noxubee, Winston	58 min
Mar 21, 4:24 PM CDT	Special Weather Statement	JAN	Clay, Oktibbeha	61 min
Mar 21, 4:45 PM CDT	Special Weather Statement	JAN	Covington	45 min
Mar 21, 5:06 PM CDT	Severe Thunderstorm Warning	JAN	Covington, Jones	39 min
Mar 21, 5:09 PM CDT	Tornado Warning	JAN	Jones	36 min
Mar 21, 5:22 PM CDT	Flash Flood Warning	JAN	Hinds, Madison, Rankin	113 min
Mar 21, 6:34 PM CDT	Flash Flood Warning	JAN	Forrest, Lamar	116 min

Nearby

Tornado Warnings in Mississippi, 2012 Every tornado warning in 2012 Tornadoes 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.