Alert archive / Mississippi / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 99, NWS Jackson, MS

March 2, 2012Choctaw County, Webster County, Mississippi

NWS Jackson, MS issued this severe thunderstorm warning at Mar 2, 2012, 7:43 PM CST for Choctaw County, Webster County, Mississippi. It was in force for 35 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 2, 2012, 7:43 PM CST (01:43 UTC)
Expired
Mar 2, 2012, 8:18 PM CST
In force
35 min
Issued by
NWS Jackson, MS
Area
Storm-based polygon

Counties Choctaw County, MS, Webster County, MS

The radar

The Columbus AFB radar (KGWX), 99 km from the middle of the area, began a volume at 01:44 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.

IssuedProductOfficeLasted
Mar 2, 1:20 PM CSTTornado WatchSPC9 hr
Mar 2, 4:47 PM CSTTornado WatchSPC6 hr

The nearest sounding before it

Jackson, MS (KJAN), launched 00:00Z, 1.7 hours before the alert went out and 147 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-pSkew-T log-p diagram, Jackson, MS at 00:00Z on 2012-03-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 449 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Jackson, MS at 00:00Z on 2012-03-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 64 square meters per square second.1939587897117136Sfc1 km3 km6 km9 kmRMLM
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
449 J/kg
Mixed-layer CIN
-5 J/kg
Mixed-layer LCL
1691 m above ground
0-6 km bulk shear
67 kt
0-1 km storm-relative helicity
64 m²/s²
0-3 km storm-relative helicity
181 m²/s²
Significant tornado parameter
0.1
Supercell composite
1.7

Open this sounding in Storm Lab

The text

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

872 
WUUS54 KJAN 030143
SVRJAN
MSC019-155-030230-
/O.NEW.KJAN.SV.W.0099.120303T0143Z-120303T0230Z/

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

THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CHOCTAW COUNTY IN CENTRAL MISSISSIPPI...
  SOUTHEASTERN WEBSTER COUNTY IN NORTH CENTRAL MISSISSIPPI...

* UNTIL 830 PM CST

* AT 743 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 16
  MILES WEST OF CHESTER MOVING NORTHEAST AT 50 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  CHESTER BY 755 PM CST...
  REFORM BY 805 PM CST...
  SHERWOOD AND MATHISTON BY 810 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.

&&

LAT...LON 3356 8902 3356 8909 3336 8909 3327 8931
      3328 8932 3329 8946 3344 8945 3343 8942
      3346 8938 3346 8941 3349 8935 3364 8902
TIME...MOT...LOC 0143Z 242DEG 42KT 3332 8944

$$

JA
1 follow-up statement
397 
WWUS54 KJAN 030218
SVSJAN

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

MSC019-155-030227-
/O.CAN.KJAN.SV.W.0099.000000T0000Z-120303T0230Z/
WEBSTER MS-CHOCTAW MS-
818 PM CST FRI MAR 2 2012

...THE SEVERE THUNDERSTORM WARNING FOR CHOCTAW AND SOUTHEASTERN
WEBSTER COUNTIES IS CANCELLED...

THE FIRST STORM THAT PROMPTED THE SEVERE THUNDERSTORM WARNING HAS 
MOVED OUT OF THE COUNTY BUT ANOTHER STORM ACROSS SOUTHERN PORTIONS 
OF CHOCTAW COUNTY CONTINUE TO BE SEVERE WARNED. NORTH AND CENTRAL 
PORTIONS OF CHOCTAW HAVE NOW BEEN REMOVED FROM THE NORTHERN STORM 
THAT MOVED INTO OKTIBBEHA COUNTY.

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 NORTHEAST LOUISIANA AND
SOUTHWESTERN MISSISSIPPI.

LAT...LON 3356 8902 3356 8909 3336 8909 3327 8931
      3328 8932 3329 8946 3344 8945 3343 8942
      3346 8938 3346 8941 3349 8935 3364 8902
TIME...MOT...LOC 0217Z 242DEG 42KT 3350 8902

$$

JA

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 2, 6:00 PM CSTTornado WarningJANLamar45 min
Mar 2, 6:03 PM CSTSevere Thunderstorm WarningJANHumphreys, Issaquena, Sharkey, Yazoo57 min
Mar 2, 6:06 PM CSTSpecial Weather StatementJANClarke44 min
Mar 2, 6:16 PM CSTSevere Thunderstorm WarningJANHinds, Issaquena, Warren, Yazoo74 min
Mar 2, 6:24 PM CSTSpecial Weather StatementJANLauderdale46 min
Mar 2, 6:24 PM CSTSevere Thunderstorm WarningJANAttala, Choctaw, Montgomery, Webster66 min
Mar 2, 6:30 PM CSTTornado WarningJANForrest31 min
Mar 2, 6:36 PM CSTSevere Thunderstorm WarningJANLauderdale24 min
Mar 2, 6:50 PM CSTSevere Thunderstorm WarningJANAttala, Holmes, Humphreys, Yazoo55 min
Mar 2, 6:56 PM CSTSpecial Weather StatementJANKemper29 min
Mar 2, 7:03 PM CSTSevere Thunderstorm WarningJANKemper11 min
Mar 2, 7:09 PM CSTSevere Thunderstorm WarningJANOktibbeha37 min
Mar 2, 7:18 PM CSTTornado WarningJANHinds, Madison, Warren, Yazoo22 min
Mar 2, 7:19 PM CSTSevere Thunderstorm WarningJANAttala, Carroll, Montgomery41 min
Mar 2, 7:21 PM CSTSevere Thunderstorm WarningJANLowndes, Noxubee24 min
Mar 2, 7:26 PM CSTSevere Thunderstorm WarningJANAttala, Holmes64 min
Mar 2, 7:38 PM CSTSevere Thunderstorm WarningJANClay, Lowndes52 min
Mar 2, 7:41 PM CSTSevere Thunderstorm WarningJANHinds, Madison49 min
Mar 2, 8:06 PM CSTSevere Thunderstorm WarningJANChoctaw, Winston39 min
Mar 2, 8:09 PM CSTSevere Thunderstorm WarningJANClay, Oktibbeha51 min
Mar 2, 8:15 PM CSTSpecial Weather StatementJANHinds25 min
Mar 2, 8:19 PM CSTSevere Thunderstorm WarningJANHinds, Madison, Rankin56 min
Mar 2, 8:39 PM CSTSevere Thunderstorm WarningJANLowndes, Noxubee, Oktibbeha, Winston66 min
Mar 2, 8:55 PM CSTSpecial Weather StatementJANWinston30 min
Mar 2, 9:00 PM CSTSevere Thunderstorm WarningJANLeake, Scott45 min
Mar 2, 9:06 PM CSTSevere Thunderstorm WarningJANNeshoba, Winston24 min
Mar 2, 9:17 PM CSTSevere Thunderstorm WarningJANClaiborne, Copiah, Hinds43 min
Mar 2, 9:23 PM CSTSevere Thunderstorm WarningJANNoxubee29 min
Mar 2, 9:34 PM CSTSpecial Weather StatementJANNewton31 min
Mar 2, 9:52 PM CSTSpecial Weather StatementJANKemper, Newton28 min
Mar 2, 10:13 PM CSTSevere Thunderstorm WarningJANKemper, Lauderdale47 min
Mar 2, 10:56 PM CSTSpecial Weather StatementJANLauderdale29 min
Mar 2, 11:10 PM CSTFlash Flood WarningJANLauderdale2 hr
Mar 2, 11:38 PM CSTFlash Flood WarningJANJasper, Newton, Smith88 min
Mar 2, 11:55 PM CSTFlash Flood WarningJANClarke72 min
Mar 3, 4:47 AM CSTSpecial Weather StatementJANRankin23 min

Nearby

Severe Thunderstorm Warnings in Mississippi, 2012Every 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.