Alert archive / Mississippi / Tornado Warnings in 2012

Tornado Warning 115, NWS Mobile, AL

December 25, 2012Perry County, Wayne County, Mississippi

NWS Mobile, AL issued this tornado warning at Dec 25, 2012, 4:14 PM CST for Perry County, Wayne County, Mississippi. It was in force for 61 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
Dec 25, 2012, 4:14 PM CST (22:14 UTC)
Expired
Dec 25, 2012, 5:15 PM CST
In force
61 min
Issued by
NWS Mobile, AL
Area
Storm-based polygon

Counties Perry County, MS, Wayne County, MS

The radar

The Mobile radar (KMOB), 115 km from the middle of the area, began a volume at 22:17 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
Dec 25, 12:58 PM CSTTornado Watch PDSSPC9 hr

The nearest sounding before it

Jackson, MS (KJAN), launched 12:00Z, 10.2 hours before the alert went out and 146 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 2012-12-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1 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 2012-12-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 253 square meters per square second.1939587897Sfc1 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
1 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
659 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
253 m²/s²
0-3 km storm-relative helicity
361 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.4

Open this sounding in Storm Lab

The text

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

984 
WFUS54 KMOB 252214
TORMOB
MSC111-153-252315-
/O.NEW.KMOB.TO.W.0115.121225T2214Z-121225T2315Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MOBILE AL
414 PM CST TUE DEC 25 2012

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHEASTERN PERRY COUNTY IN SOUTHEAST MISSISSIPPI...
  WAYNE COUNTY IN SOUTHEAST MISSISSIPPI...

* UNTIL 515 PM CST

* AT 413 PM CST...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED 11 MILES NORTH OF RICHTON...OR 19 MILES WEST OF
  CLARA...MOVING NORTHEAST AT 40 MPH.

* LOCATIONS IMPACTED INCLUDE...
  WAYNESBORO...         CLARA...              BUCKATUNNA...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT UNTIL 800 PM CST TUESDAY EVENING
FOR SOUTHWESTERN ALABAMA AND SOUTHEAST MISSISSIPPI. A TORNADO WATCH
ALSO REMAINS IN EFFECT UNTIL 1000 PM CST TUESDAY EVENING FOR SOUTH
CENTRAL ALABAMA AND NORTHWEST FLORIDA.

&&

LAT...LON 3144 8907 3144 8895 3168 8895 3184 8874
      3188 8853 3182 8847 3165 8846 3153 8851
      3138 8902
TIME...MOT...LOC 2214Z 230DEG 34KT 3151 8900

$$

The office that day

Everything else NWS Mobile, AL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Dec 25, 3:19 PM CSTTornado WarningMOBPerry, Stone56 min
Dec 25, 3:49 PM CSTSevere Thunderstorm WarningMOBGreene, Perry, Wayne56 min
Dec 25, 4:06 PM CSTTornado WarningMOBGreene, Perry54 min
Dec 25, 4:12 PM CSTTornado WarningMOBGeorge, Greene, Perry, Stone48 min
Dec 25, 4:24 PM CSTTornado WarningMOBWayne66 min
Dec 25, 4:50 PM CSTSevere Thunderstorm WarningMOBGeorge, Greene, Perry, Stone55 min
Dec 25, 4:52 PM CSTTornado WarningMOBWayne53 min
Dec 25, 5:00 PM CSTTornado WarningMOBGeorge, Greene, Perry45 min
Dec 25, 5:28 PM CSTSevere Thunderstorm WarningMOBGeorge, Greene, Perry, Stone, Wayne62 min

Nearby

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