Alert archive / Mississippi / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 424, NWS Jackson, MS

July 14, 2012Hinds County, Mississippi

NWS Jackson, MS issued this severe thunderstorm warning at Jul 14, 2012, 5:51 PM CDT for Hinds County, Mississippi. It was in force for 39 min. 1 report 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
Jul 14, 2012, 5:51 PM CDT (22:51 UTC)
Expired
Jul 14, 2012, 6:30 PM CDT
In force
39 min
Issued by
NWS Jackson, MS
Area
Storm-based polygon

County Hinds County, MS

The radar

The Jackson/Brandon,MS radar (KDGX), 45 km from the middle of the area, began a volume at 22:53 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
Jul 14, 6:20 PM CDTTSTM WND DMGRaymond, MSPOWER OUTAGES

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Jackson, MS (KJAN), launched 12:00Z, 10.9 hours before the alert went out and 38 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 12:00Z on 2012-07-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 691 joules per kilogram.LCLLFCEL10008507005003002001001 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 12:00Z on 2012-07-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 51 square meters per square second.1939Sfc1 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
691 J/kg
Mixed-layer CIN
-48 J/kg
Mixed-layer LCL
698 m above ground
0-6 km bulk shear
17 kt
0-1 km storm-relative helicity
51 m²/s²
0-3 km storm-relative helicity
59 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.

742 
WUUS54 KJAN 142251
SVRJAN
MSC049-142330-
/O.NEW.KJAN.SV.W.0424.120714T2251Z-120714T2330Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE JACKSON MS
551 PM CDT SAT JUL 14 2012

THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHERN HINDS COUNTY IN CENTRAL MISSISSIPPI...
  THIS INCLUDES THE CITY OF BYRAM...

* UNTIL 630 PM CDT

* AT 551 PM CDT...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
  DRY GROVE MOVING NORTHWEST AT 15 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  DRY GROVE BY 600 PM CDT...
  RAYMOND BY 615 PM CDT...

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.

&&

LAT...LON 3212 9061 3230 9044 3221 9024 3207 9032
TIME...MOT...LOC 2251Z 114DEG 12KT 3215 9039

$$

JC
2 follow-up statements
999 
WWUS54 KJAN 142310
SVSJAN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
610 PM CDT SAT JUL 14 2012

MSC049-142330-
/O.CON.KJAN.SV.W.0424.000000T0000Z-120714T2330Z/
HINDS MS-
610 PM CDT SAT JUL 14 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 630 PM CDT
FOR CENTRAL HINDS COUNTY...

AT 610 PM CDT...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
RAYMOND MOVING NORTHWEST AT 10 MPH.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  RAYMOND BY 630 PM CDT...

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.

&&

LAT...LON 3220 9053 3230 9044 3219 9027 3211 9032
TIME...MOT...LOC 2310Z 149DEG 11KT 3220 9040

$$

JC
275 
WWUS54 KJAN 142321
SVSJAN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
621 PM CDT SAT JUL 14 2012

MSC049-142331-
/O.EXP.KJAN.SV.W.0424.000000T0000Z-120714T2330Z/
HINDS MS-
621 PM CDT SAT JUL 14 2012

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL HINDS COUNTY WILL
EXPIRE AT 630 PM CDT...

THE STORM HAS WEAKENED AND THUS THE WARNING WILL BE ALLOWED TO 
EXPIRE. 

LAT...LON 3220 9053 3230 9044 3219 9027 3211 9032
TIME...MOT...LOC 2321Z 149DEG 11KT 3223 9042

$$

JC

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 13, 7:38 PM CDTSpecial Weather StatementJANLauderdale27 min
Jul 13, 7:41 PM CDTSpecial Weather StatementJANJones29 min
Jul 13, 8:07 PM CDTFlash Flood WarningJANJones84 min
Jul 14, 3:10 PM CDTSpecial Weather StatementJANNewton30 min
Jul 14, 4:39 PM CDTSpecial Weather StatementJANChoctaw31 min
Jul 14, 5:22 PM CDTSpecial Weather StatementJANLeflore28 min
Jul 14, 5:25 PM CDTSevere Thunderstorm WarningJANLeflore50 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.