Alert archive / Mississippi / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 71, NWS Jackson, MS

March 2, 20124 counties in Mississippi

NWS Jackson, MS issued this severe thunderstorm warning at Mar 2, 2012, 3:25 PM CST for 4 counties in Mississippi. It was in force for 65 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: Mar 2, 2012, 3:25 PM CST (21:25 UTC)
Expired: Mar 2, 2012, 4:30 PM CST
In force: 65 min
Issued by: NWS Jackson, MS
Area: Storm-based polygon

Counties Carroll County, MS, Grenada County, MS, Leflore County, MS, Montgomery County, MS

The radar

The Columbus AFB radar (KGWX), 145 km from the middle of the area, began a volume at 21:25 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
Mar 2, 4:02 PM CST	HAIL 1	1 S Grenada, MS	QUARTER SIZE HAIL SOUTH OF GRENADA
Mar 2, 4:15 PM CST	HAIL 1	2 W Carrollton, MS	QUARTER SIZED HAIL REPORTED ALONG HIGHWAY 82 TWO MILES WEST OF CARROLLTON.

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
Mar 2, 1:20 PM CST	Tornado Watch	SPC	9 hr
Mar 2, 1:47 PM CST	Severe Thunderstorm Watch	SPC	9 hr

The nearest sounding before it

Little Rock, AR (KLZK), launched 12:00Z, 9.4 hours before the alert went out and 130 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: 1625 J/kg
Mixed-layer CIN: -13 J/kg
Mixed-layer LCL: 645 m above ground
0-6 km bulk shear: 63 kt
0-1 km storm-relative helicity: 291 m²/s²
0-3 km storm-relative helicity: 304 m²/s²
Significant tornado parameter: 3.2
Supercell composite: 11.9

Open this sounding in Storm Lab

The text

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

114 
WUUS54 KJAN 022125
SVRJAN
MSC015-043-083-097-022230-
/O.NEW.KJAN.SV.W.0071.120302T2125Z-120302T2230Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE JACKSON MS
325 PM CST FRI MAR 2 2012

THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN CARROLL COUNTY IN NORTH CENTRAL MISSISSIPPI...
  GRENADA COUNTY IN NORTH CENTRAL MISSISSIPPI...
  THIS INCLUDES THE CITY OF GRENADA...
  EAST CENTRAL LEFLORE COUNTY IN NORTH CENTRAL MISSISSIPPI...
  THIS INCLUDES THE CITY OF GREENWOOD...
  NORTHWESTERN MONTGOMERY COUNTY IN NORTH CENTRAL MISSISSIPPI...

* UNTIL 430 PM CST

* AT 325 PM CST...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
  SIDON MOVING NORTHEAST AT 55 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  MALMAISON...TEOC AND AVALON BY 335 PM CST...
  NORTH CARROLLTON BY 340 PM CST...
  JEFFERSON BY 345 PM CST...
  BEW SPRINGS BY 350 PM CST...
  ELLIOTT...DUCK HILL AND GRENADA BY 355 PM CST...
  GORE SPRINGS BY 405 PM 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 UNTIL 900 PM CST FRIDAY EVENING FOR
NORTHERN MISSISSIPPI. A SEVERE THUNDERSTORM WATCH ALSO REMAINS IN
EFFECT UNTIL 900 PM CST FRIDAY EVENING FOR SOUTHEAST ARKANSAS AND
NORTHEAST LOUISIANA AND NORTHWESTERN MISSISSIPPI.

&&

LAT...LON 3387 8976 3386 8950 3364 8951 3333 9018
      3334 9021 3347 9032 3389 8977
TIME...MOT...LOC 2125Z 238DEG 49KT 3345 9017

$$

DHB

2 follow-up statements

155 
WWUS54 KJAN 022147
SVSJAN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
347 PM CST FRI MAR 2 2012

MSC015-043-083-097-022230-
/O.CON.KJAN.SV.W.0071.000000T0000Z-120302T2230Z/
MONTGOMERY MS-LEFLORE MS-GRENADA MS-CARROLL MS-
347 PM CST FRI MAR 2 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 430 PM CST
FOR NORTHERN CARROLL...GRENADA...EAST CENTRAL LEFLORE AND
NORTHWESTERN MONTGOMERY COUNTIES...

AT 347 PM CST...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE TRACKING
A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR
MALMAISON MOVING NORTHEAST AT 50 MPH.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  ELLIOTT...DUCK HILL AND BEW SPRINGS BY 400 PM CST...
  GRENADA BY 405 PM CST...
  SWEATMAN BY 410 PM CST...
  GORE SPRINGS AND MISTERTON BY 415 PM 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 UNTIL 900 PM CST FRIDAY EVENING FOR
NORTHERN MISSISSIPPI. A SEVERE THUNDERSTORM WATCH ALSO REMAINS IN
EFFECT UNTIL 900 PM CST FRIDAY EVENING FOR SOUTHEAST ARKANSAS AND
NORTHEAST LOUISIANA AND NORTHWESTERN MISSISSIPPI.

&&

LAT...LON 3387 8976 3386 8950 3364 8951 3333 9018
      3334 9021 3347 9032 3389 8977
TIME...MOT...LOC 2147Z 236DEG 43KT 3360 8994

$$

DHB

574 
WWUS54 KJAN 022209
SVSJAN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
409 PM CST FRI MAR 2 2012

MSC015-043-083-097-022230-
/O.CON.KJAN.SV.W.0071.000000T0000Z-120302T2230Z/
MONTGOMERY MS-LEFLORE MS-GRENADA MS-CARROLL MS-
409 PM CST FRI MAR 2 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 430 PM CST
FOR NORTHERN CARROLL...GRENADA...EAST CENTRAL LEFLORE AND
NORTHWESTERN MONTGOMERY COUNTIES...

AT 409 PM CST...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE TRACKING
A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR
CARROLLTON MOVING NORTHEAST AT 60 MPH.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  JEFFERSON BY 415 PM CST...
  BEW SPRINGS BY 420 PM CST...
  DUCK HILL...ELLIOTT AND GRENADA BY 425 PM CST...
  MISTERTON...SWEATMAN AND GORE SPRINGS BY 430 PM 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 UNTIL 900 PM CST FRIDAY EVENING FOR
NORTHERN MISSISSIPPI. A SEVERE THUNDERSTORM WATCH ALSO REMAINS IN
EFFECT UNTIL 900 PM CST FRIDAY EVENING FOR SOUTHEAST ARKANSAS AND
NORTHEAST LOUISIANA AND NORTHWESTERN MISSISSIPPI.

&&

LAT...LON 3387 8976 3386 8950 3364 8951 3333 9018
      3334 9021 3347 9032 3389 8977
TIME...MOT...LOC 2209Z 232DEG 51KT 3349 8989

$$

DHB

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 2, 3:18 AM CST	Wind Advisory	JAN	Bolivar, Carroll, Grenada, Holmes, Humphreys, Issaquena and 5 more	13 hr
Mar 2, 12:52 PM CST	Special Weather Statement	JAN	Choctaw	28 min
Mar 2, 1:27 PM CST	Special Weather Statement	JAN	Clay	33 min
Mar 2, 1:30 PM CST	Special Weather Statement	JAN	Grenada	30 min
Mar 2, 1:42 PM CST	Special Weather Statement	JAN	Choctaw	28 min
Mar 2, 1:56 PM CST	Severe Thunderstorm Warning	JAN	Grenada, Montgomery	33 min
Mar 2, 2:06 PM CST	Severe Thunderstorm Warning	JAN	Oktibbeha	39 min
Mar 2, 2:29 PM CST	Severe Thunderstorm Warning	JAN	Bolivar, Washington	61 min
Mar 2, 2:33 PM CST	Severe Thunderstorm Warning	JAN	Clay, Lowndes	41 min
Mar 2, 2:44 PM CST	Severe Thunderstorm Warning	JAN	Lowndes	31 min
Mar 2, 2:56 PM CST	Tornado Warning	JAN	Lowndes	18 min
Mar 2, 3:05 PM CST	Special Weather Statement	JAN	Sunflower	30 min
Mar 2, 3:36 PM CST	Severe Thunderstorm Warning	JAN	Leflore, Sunflower, Washington	42 min
Mar 2, 3:54 PM CST	Special Weather Statement	JAN	Washington	31 min
Mar 2, 4:07 PM CST	Severe Thunderstorm Warning	JAN	Issaquena, Washington	53 min
Mar 2, 4:14 PM CST	Special Weather Statement	JAN	Marion	31 min
Mar 2, 4:20 PM CST	Special Weather Statement	JAN	Lawrence	30 min
Mar 2, 4:21 PM CST	Special Weather Statement	JAN	Jasper, Lauderdale	44 min
Mar 2, 4:32 PM CST	Severe Thunderstorm Warning	JAN	Carroll, Holmes, Humphreys, Leflore, Sunflower	58 min
Mar 2, 4:41 PM CST	Severe Thunderstorm Warning	JAN	Grenada, Montgomery, Webster	34 min
Mar 2, 4:55 PM CST	Special Weather Statement	JAN	Jones	30 min
Mar 2, 5:02 PM CST	Severe Thunderstorm Warning	JAN	Covington, Jones	44 min
Mar 2, 5:10 PM CST	Severe Thunderstorm Warning	JAN	Humphreys, Sharkey, Washington	35 min
Mar 2, 5:11 PM CST	Severe Thunderstorm Warning	JAN	Covington, Jefferson Davis	34 min
Mar 2, 5:12 PM CST	Severe Thunderstorm Warning	JAN	Clay, Webster	33 min
Mar 2, 5:19 PM CST	Severe Thunderstorm Warning	JAN	Carroll, Montgomery	41 min
Mar 2, 5:22 PM CST	Tornado Warning	JAN	Covington	23 min
Mar 2, 5:38 PM CST	Severe Thunderstorm Warning	JAN	Carroll, Holmes, Humphreys	67 min
Mar 2, 5:43 PM CST	Tornado Warning	JAN	Marion	27 min
Mar 2, 5:58 PM CST	Severe Thunderstorm Warning	JAN	Clay, Webster	47 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.