Alert archive / Mississippi / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 604, NWS Jackson, MS

December 20, 2012Holmes County, Yazoo County, Mississippi

NWS Jackson, MS issued this severe thunderstorm warning at Dec 20, 2012, 4:18 AM CST for Holmes County, Yazoo County, Mississippi. It was in force for 72 min. 6 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
Dec 20, 2012, 4:18 AM CST (10:18 UTC)
Expired
Dec 20, 2012, 5:30 AM CST
In force
72 min
Issued by
NWS Jackson, MS
Area
Storm-based polygon

Counties Holmes County, MS, Yazoo County, MS

The radar

The Jackson/Brandon,MS radar (KDGX), 80 km from the middle of the area, began a volume at 10:21 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

TimeReportWhereRemark
Dec 20, 4:35 AM CSTTSTM WND GST 60Yazoo City, MS
Dec 20, 4:50 AM CSTTSTM WND DMGBentonia, MSTREES DOWN ACROSS BERRYVILLE ROAD AND HWY 433
Dec 20, 4:54 AM CSTTSTM WND DMGBenton, MSTREES DOWN ON SONNY LANE AND HWY 16
Dec 20, 4:55 AM CSTTSTM WND DMG1 N Lexington, MSTREES DOWN ON HWY 17 NORTH.
Dec 20, 4:55 AM CSTTSTM WND DMGLexington, MSPOWERLINES DOWN IN THE CITY OF LEXINGTON.
Dec 20, 5:12 AM CSTTSTM WND DMGVaughan, MSTREES DOWN

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.

IssuedProductOfficeLasted
Dec 20, 1:07 AM CSTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Jackson, MS (KJAN), launched 00:00Z, 10.3 hours before the alert went out and 72 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 2012-12-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2012-12-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 206 square meters per square second.19395878Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1606 m above ground
0-6 km bulk shear
60 kt
0-1 km storm-relative helicity
206 m²/s²
0-3 km storm-relative helicity
246 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

004 
WUUS54 KJAN 201018
SVRJAN
MSC051-163-201130-
/O.NEW.KJAN.SV.W.0604.121220T1018Z-121220T1130Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE JACKSON MS
418 AM CST THU DEC 20 2012

THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  HOLMES COUNTY IN CENTRAL MISSISSIPPI...
  THIS INCLUDES THE CITIES OF...THORNTON...DURANT...
  YAZOO COUNTY IN CENTRAL MISSISSIPPI...
  THIS INCLUDES THE CITY OF YAZOO CITY...

* UNTIL 530 AM CST

* AT 418 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 21 MILES NORTHWEST OF TCHULA TO 14 MILES WEST OF THORNTON TO
  16 MILES SOUTHWEST OF HOLLY BLUFF MOVING EAST AT 50 MPH.

* SEVERE THUNDERSTORMS WILL BE NEAR...
  THORNTON...YAZOO CITY AND TCHULA BY 435 AM CST...
  HOWARD...TOLARVILLE...PHOENIX AND TINSLEY BY 440 AM CST...
  COXBURG BY 445 AM CST...
  BROZVILLE AND BENTON BY 450 AM 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.

SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES. WHILE NOT IMMEDIATELY
LIKELY...A TORNADO MAY STILL DEVELOP. 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 SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 700 AM CST
THURSDAY MORNING FOR SOUTHEAST ARKANSAS AND NORTHEAST LOUISIANA AND
WESTERN MISSISSIPPI.

&&

LAT...LON 3321 8975 3274 9005 3258 9044 3251 9052
      3255 9066 3265 9073 3269 9066 3272 9074
      3281 9070 3284 9076 3293 9066 3293 9045
      3300 9045 3301 9037 3309 9043 3310 9035
      3336 9030 3337 9031 3337 9033 3337 9032
TIME...MOT...LOC 1018Z 270DEG 42KT 3346 9036 3305 9054
          3264 9084

$$

JA
3 follow-up statements
006 
WWUS54 KJAN 201051
SVSJAN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
451 AM CST THU DEC 20 2012

MSC051-163-201130-
/O.CON.KJAN.SV.W.0604.000000T0000Z-121220T1130Z/
HOLMES MS-YAZOO MS-
451 AM CST THU DEC 20 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 530 AM CST
FOR YAZOO AND HOLMES COUNTIES...

AT 450 AM CST...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE TRACKING
A LINE OF SEVERE THUNDERSTORMS PRODUCING DAMAGING WINDS IN EXCESS OF 
60 MPH.  THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM 14 
MILES NORTH OF EMORY TO BROZVILLE TO BENTONIA MOVING EAST AT 50 MPH.

SEVERE THUNDERSTORMS WILL BE NEAR...
  EMORY...EBENEZER...FRANKLIN AND MYRLEVILLE BY 455 AM CST...
  BOWLING GREEN AND MCMILLAN BY 500 AM CST...
  VAUGHAN...GOODMAN AND DURANT BY 505 AM CST...
  WEST BY 510 AM CST...

REPORTS OF POWER OUTAGES IN YAZOO CITY AND A MEASURED WIND GUST OF 
60 MPH WAS REPORTED ON HIGHWAY THREE JUST SOUTHWEST OF YAZOO CITY. 

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 NOON CST THURSDAY FOR
MISSISSIPPI. A SEVERE THUNDERSTORM WATCH ALSO REMAINS IN EFFECT UNTIL
700 AM CST THURSDAY MORNING FOR SOUTHEAST ARKANSAS AND NORTHEAST
LOUISIANA AND WESTERN MISSISSIPPI.

&&

LAT...LON 3321 8975 3274 9005 3258 9044 3251 9052
      3255 9066 3265 9073 3269 9066 3272 9074
      3281 9070 3284 9076 3293 9066 3293 9045
      3300 9045 3301 9037 3309 9043 3310 9035
      3336 9030 3337 9031 3337 9033 3337 9032
TIME...MOT...LOC 1050Z 270DEG 42KT 3346 8991 3305 9009
          3264 9040

$$
880 
WWUS54 KJAN 201105
SVSJAN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
505 AM CST THU DEC 20 2012

MSC051-163-201130-
/O.CON.KJAN.SV.W.0604.000000T0000Z-121220T1130Z/
HOLMES MS-YAZOO MS-
505 AM CST THU DEC 20 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 530 AM CST
FOR EASTERN YAZOO AND EASTERN HOLMES COUNTIES...

AT 505 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 18 MILES NORTH OF WEST TO DURANT TO 6 MILES SOUTHEAST OF
MYRLEVILLE MOVING EAST AT 50 MPH.

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.

THIS STORM HAS A HISTORY OF PRODUCING DESTRUCTIVE WINDS. SEEK 
SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS!

&&

LAT...LON 3321 8975 3319 8976 3319 8978 3317 8978
      3287 8997 3283 9002 3279 9002 3274 9005
      3258 9045 3251 9052 3253 9057 3285 9030
      3329 9003
TIME...MOT...LOC 1105Z 270DEG 42KT 3346 8970 3305 8988
          3264 9019

$$

JA
391 
WWUS54 KJAN 201129
SVSJAN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
529 AM CST THU DEC 20 2012

MSC051-163-201139-
/O.EXP.KJAN.SV.W.0604.000000T0000Z-121220T1130Z/
HOLMES MS-YAZOO MS-
529 AM CST THU DEC 20 2012

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN YAZOO AND EASTERN
HOLMES COUNTIES WILL EXPIRE AT 530 AM CST...

A TORNADO WATCH REMAINS IN EFFECT UNTIL NOON CST THURSDAY FOR
MISSISSIPPI.

LAT...LON 3321 8975 3319 8976 3319 8978 3317 8978
      3287 8997 3283 9002 3279 9002 3274 9005
      3258 9045 3251 9052 3253 9057 3285 9030
      3329 9003
TIME...MOT...LOC 1129Z 270DEG 42KT 3343 8936 3302 8955
          3262 8987

$$

BK

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 20, 2:14 AM CSTSpecial Weather StatementJANKemper31 min
Dec 20, 2:59 AM CSTSevere Thunderstorm WarningJANBolivar, Washington76 min
Dec 20, 3:23 AM CSTSpecial Weather StatementJANMadison32 min
Dec 20, 3:42 AM CSTSevere Thunderstorm WarningJANIssaquena, Sharkey, Warren78 min
Dec 20, 3:45 AM CSTSevere Thunderstorm WarningJANHumphreys, Leflore, Sunflower45 min
Dec 20, 3:59 AM CSTTornado WarningJANMadison26 min
Dec 20, 4:22 AM CSTTornado WarningJANAttala, Leake34 min
Dec 20, 4:25 AM CSTSevere Thunderstorm WarningJANCarroll, Grenada, Leflore, Montgomery80 min
Dec 20, 4:34 AM CSTSevere Thunderstorm WarningJANAdams, Claiborne, Franklin, Jefferson71 min
Dec 20, 4:48 AM CSTSevere Thunderstorm WarningJANHinds, Madison57 min
Dec 20, 4:56 AM CSTSpecial Weather StatementJANSimpson29 min
Dec 20, 5:01 AM CSTSevere Thunderstorm WarningJANCopiah59 min
Dec 20, 5:08 AM CSTSevere Thunderstorm WarningJANAttala, Choctaw, Webster67 min
Dec 20, 5:16 AM CSTSevere Thunderstorm WarningJANLeake, Rankin, Scott74 min
Dec 20, 5:24 AM CSTSevere Thunderstorm WarningJANLincoln66 min
Dec 20, 5:26 AM CSTSevere Thunderstorm WarningJANJasper, Smith34 min
Dec 20, 5:27 AM CSTSevere Thunderstorm WarningJANMarion48 min
Dec 20, 5:38 AM CSTTornado WarningJANMarion37 min
Dec 20, 5:44 AM CSTSevere Thunderstorm WarningJANJefferson Davis, Lawrence, Simpson76 min
Dec 20, 5:53 AM CSTSevere Thunderstorm WarningJANClay, Oktibbeha, Winston52 min
Dec 20, 5:56 AM CSTSpecial Weather StatementJANKemper, Noxubee29 min
Dec 20, 5:58 AM CSTSevere Thunderstorm WarningJANNeshoba, Newton62 min
Dec 20, 5:59 AM CSTSevere Thunderstorm WarningJANCovington, Lamar46 min
Dec 20, 6:00 AM CSTSevere Thunderstorm WarningJANJasper, Smith75 min
Dec 20, 6:17 AM CSTSevere Thunderstorm WarningJANLauderdale43 min
Dec 20, 6:18 AM CSTSevere Thunderstorm WarningJANLamar, Marion42 min
Dec 20, 6:20 AM CSTSevere Thunderstorm WarningJANLowndes, Noxubee40 min
Dec 20, 6:23 AM CSTSevere Thunderstorm WarningJANCovington, Jones82 min
Dec 20, 6:33 AM CSTSevere Thunderstorm WarningJANKemper, Lauderdale57 min
Dec 20, 6:38 AM CSTSevere Thunderstorm WarningJANForrest37 min
Dec 20, 6:48 AM CSTSevere Thunderstorm WarningJANLamar, Marion57 min
Dec 20, 6:51 AM CSTSevere Thunderstorm WarningJANClarke, Lauderdale54 min
Dec 20, 6:59 AM CSTSevere Thunderstorm WarningJANLowndes, Noxubee19 min
Dec 20, 7:12 AM CSTSevere Thunderstorm WarningJANForrest48 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.