Alert archive / Mississippi / Severe Thunderstorm Warnings in 2013

Severe Thunderstorm Warning 2, NWS Mobile, AL

January 30, 2013Wayne County, Mississippi; Choctaw County, Alabama

NWS Mobile, AL issued this severe thunderstorm warning at Jan 30, 2013, 7:29 AM CST for Wayne County, Mississippi; Choctaw County, Alabama. It was in force for 46 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
Jan 30, 2013, 7:29 AM CST (13:29 UTC)
Expired
Jan 30, 2013, 8:15 AM CST
In force
46 min
Issued by
NWS Mobile, AL
Area
Storm-based polygon

Counties Choctaw County, AL, Wayne County, MS

The radar

The Mobile radar (KMOB), 151 km from the middle of the area, began a volume at 13:30 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
Jan 30, 5:15 AM CSTTornado WatchSPC7 hr

The nearest sounding before it

Birmingham, AL (KBMX), launched 12:00Z, 1.5 hours before the alert went out and 181 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, Birmingham, AL at 12:00Z on 2013-01-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 916 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, Birmingham, AL at 12:00Z on 2013-01-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 296 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
916 J/kg
Mixed-layer CIN
-1 J/kg
Mixed-layer LCL
468 m above ground
0-6 km bulk shear
62 kt
0-1 km storm-relative helicity
296 m²/s²
0-3 km storm-relative helicity
364 m²/s²
Significant tornado parameter
1.9
Supercell composite
9.6

Open this sounding in Storm Lab

The text

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

446 
WUUS54 KMOB 301329
SVRMOB
ALC023-MSC153-301415-
/O.NEW.KMOB.SV.W.0002.130130T1329Z-130130T1415Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
729 AM CST WED JAN 30 2013

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHEASTERN WAYNE COUNTY IN SOUTHEAST MISSISSIPPI...
  CHOCTAW COUNTY IN SOUTHWEST ALABAMA...

* UNTIL 815 AM CST

* AT 725 AM CST...A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING
  DAMAGING WINDS OVER 60 MPH WERE LOCATED ALONG A LINE EXTENDING FROM
  19 MILES EAST OF MERIDIAN TO 9 MILES WEST OF BUTLER TO 13 MILES
  NORTH OF WAYNESBORO TO 5 MILES NORTH OF WAYNESBORO...AND MOVING
  NORTHEAST  NEAR 60 MPH.

* LOCATIONS IMPACTED INCLUDE...
  TOXEY...              SILAS...              PENNINGTON...
  NEEDHAM...            LISMAN...             GILBERTOWN...
  BUTLER...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT UNTIL 100 PM CST WEDNESDAY
AFTERNOON FOR SOUTHWESTERN ALABAMA AND SOUTHEAST MISSISSIPPI.

&&

LAT...LON 3231 8793 3228 8794 3230 8795 3228 8801
      3214 8801 3208 8804 3205 8811 3201 8811
      3199 8806 3196 8807 3195 8812 3192 8809
      3193 8805 3190 8813 3182 8818 3178 8817
      3172 8870 3185 8869 3190 8848 3231 8842
TIME...MOT...LOC 1328Z 229DEG 64KT 3246 8835 3232 8833
          3213 8833 3204 8849 3189 8852 3178 8862

$$
3 follow-up statements
146 
WWUS54 KMOB 301350
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
750 AM CST WED JAN 30 2013

ALC023-MSC153-301415-
/O.CON.KMOB.SV.W.0002.000000T0000Z-130130T1415Z/
CHOCTAW AL-WAYNE MS-
750 AM CST WED JAN 30 2013

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 815 AM CST
FOR NORTHEASTERN WAYNE AND CHOCTAW COUNTIES...

AT 745 AM CST...A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING
DAMAGING WINDS OVER 60 MPH WERE LOCATED ALONG A LINE EXTENDING FROM 
15 MILES NORTH OF BUTLER TO 13 MILES SOUTHWEST OF BUTLER TO 4 
MILES NORTHEAST OF WAYNESBORO...MOVING NORTHEAST AT 135 MPH.

LOCATIONS IMPACTED INCLUDE...
  TOXEY...              SILAS...              PENNINGTON...
  NEEDHAM...            LISMAN...             GILBERTOWN...
  BUTLER...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT UNTIL 100 PM CST WEDNESDAY
AFTERNOON FOR SOUTHWESTERN ALABAMA AND SOUTHEAST MISSISSIPPI.

&&

LAT...LON 3231 8793 3229 8794 3230 8798 3228 8801
      3215 8801 3208 8804 3205 8811 3201 8811
      3199 8806 3195 8812 3192 8809 3193 8806
      3190 8813 3182 8818 3178 8817 3172 8870
      3185 8869 3190 8848 3222 8843 3231 8836
TIME...MOT...LOC 1350Z 229DEG 117KT 3241 8803 3226 8801
          3204 8822 3183 8847

$$
933 
WWUS54 KMOB 301403
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
803 AM CST WED JAN 30 2013

ALC023-MSC153-301415-
/O.CON.KMOB.SV.W.0002.000000T0000Z-130130T1415Z/
CHOCTAW AL-WAYNE MS-
803 AM CST WED JAN 30 2013

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 815 AM CST
FOR NORTHEASTERN WAYNE AND CHOCTAW COUNTIES...

AT 759 AM CST...A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING
DAMAGING WINDS OVER 60 MPH WERE LOCATED ALONG A LINE EXTENDING FROM
16 MILES NORTHEAST OF BUTLER TO 8 MILES EAST OF BUTLER TO 11 MILES
SOUTH OF BUTLER TO 12 MILES NORTHEAST OF WAYNESBORO...MOVING
NORTHEAST AT 60 MPH.

LOCATIONS IMPACTED INCLUDE...
  TOXEY...              SILAS...              PENNINGTON...
  NEEDHAM...            LISMAN...             GILBERTOWN...
  BUTLER...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT UNTIL 100 PM CST WEDNESDAY
AFTERNOON FOR SOUTHWESTERN ALABAMA AND SOUTHEAST MISSISSIPPI.

&&

LAT...LON 3231 8793 3228 8801 3215 8801 3214 8804
      3208 8804 3205 8811 3201 8811 3199 8807
      3195 8812 3192 8808 3188 8814 3182 8818
      3178 8817 3173 8870 3185 8869 3190 8848
      3209 8837 3231 8819
TIME...MOT...LOC 1403Z 233DEG 51KT 3233 8803 3213 8804
          3197 8822 3178 8841

$$
234 
WWUS54 KMOB 301413
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
813 AM CST WED JAN 30 2013

ALC023-MSC153-301423-
/O.EXP.KMOB.SV.W.0002.000000T0000Z-130130T1415Z/
CHOCTAW AL-WAYNE MS-
813 AM CST WED JAN 30 2013

...THE SEVERE THUNDERSTORM WARNING WILL BE ALLOWED TO EXPIRE FOR
NORTHEASTERN WAYNE AND CHOCTAW COUNTIES...

AT 809 AM CST...THE LINE OF STORMS THAT PROMPTED THE WARNING FOR 
NORTHEASTERN WAYNE AND CHOCTAW COUNTIES HAS WEAKENED TO BELOW SEVERE 
LIMITS...THUS THE SEVERE THUNDERSTORM WARNING WILL BE ALLOWED TO 
EXPIRE AT 815 AM CST.

WIND GUSTS FROM 45 TO 55 MPH ARE STILL POSSIBLE LOCALLY.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 100 PM CST WEDNESDAY
AFTERNOON FOR SOUTHWESTERN ALABAMA AND SOUTHEAST MISSISSIPPI.

LAT...LON 3231 8793 3228 8801 3215 8801 3214 8804
      3208 8804 3205 8811 3201 8811 3199 8807
      3195 8812 3192 8808 3188 8814 3182 8818
      3178 8817 3173 8870 3185 8869 3190 8848
      3209 8837 3231 8819
TIME...MOT...LOC 1413Z 233DEG 51KT 3242 8790 3222 8791
          3206 8809 3187 8828

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 29, 8:20 PM CSTWind AdvisoryMOBGeorge, Greene, Perry, Stone, Wayne22 hr
Jan 30, 10:18 AM CSTAreal Flood AdvisoryMOBGreene, Perry, Wayne74 days
Jan 30, 12:48 AM CSTMarine Dense Fog AdvisoryMOB9 hr
Jan 30, 3:42 AM CSTGale WarningMOB20 hr
Jan 30, 3:42 AM CSTSmall Craft AdvisoryMOB32 hr
Jan 30, 9:03 AM CSTSevere Thunderstorm WarningMOBChoctaw, Clarke, Washington42 min
Jan 30, 10:54 AM CSTFlash Flood WarningMOBChoctaw, Clarke, Washington6 hr
Jan 30, 11:24 AM CSTSpecial Marine WarningMOB51 min
Jan 30, 12:36 PM CSTAreal Flood AdvisoryMOBBaldwin, Clarke, Escambia, Mobile, Monroe, Washington and 1 more3 hr
Jan 30, 1:18 PM CSTSpecial Marine WarningMOB42 min
Jan 30, 1:19 PM CSTRiver Flood WarningMOBChoctaw, Clarke, Washington4 days
Jan 30, 1:19 PM CSTRiver Flood WarningMOBChoctaw, Clarke, Washington4 days
Jan 30, 1:59 PM CSTSpecial Marine WarningMOB91 min

Nearby

Severe Thunderstorm Warnings in Mississippi, 2013Severe Thunderstorm Warnings in Alabama, 2013Every severe thunderstorm warning in 2013

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.