Alert archive / Alabama / Severe Thunderstorm Warnings in 2007

Severe Thunderstorm Warning 13, NWS Mobile, AL

February 25, 2007Choctaw County, Alabama

NWS Mobile, AL issued this severe thunderstorm warning at Feb 25, 2007, 12:07 AM CST for Choctaw County, Alabama. It was in force for 38 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
Feb 25, 2007, 12:07 AM CST (06:07 UTC)
Expired
Feb 25, 2007, 12:45 AM CST
In force
38 min
Issued by
NWS Mobile, AL
Area
Counties, with a storm outline in the text

County Choctaw County, AL

The radar

The Mobile radar (KMOB), 160 km from the middle of the area, began a volume at 06:08 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
Feb 24, 7:52 PM CSTTornado WatchSPC7 hr

The nearest sounding before it

Jackson, MS (KJAN), launched 00:00Z, 6.1 hours before the alert went out and 173 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 2007-02-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 311 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 00:00Z on 2007-02-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 409 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
311 J/kg
Mixed-layer CIN
-34 J/kg
Mixed-layer LCL
817 m above ground
0-6 km bulk shear
61 kt
0-1 km storm-relative helicity
409 m²/s²
0-3 km storm-relative helicity
662 m²/s²
Significant tornado parameter
1.2
Supercell composite
5.1

Open this sounding in Storm Lab

The text

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

000 
WUUS54 KMOB 250608
SVRMOB
ALC023-250645-
/O.NEW.KMOB.SV.W.0013.070225T0607Z-070225T0645Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
1207 AM CST SUN FEB 25 2007

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN CHOCTAW COUNTY IN SOUTHWEST ALABAMA...
  THIS INCLUDES THE CITY OF BUTLER...

* UNTIL 1245 AM CST

* AT 1205 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING PENNY SIZE       
  HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THESE STORMS       
  WERE   LOCATED ALONG A LINE FROM 12 MILES EAST OF MERIDIAN TO 13   
  MILES SOUTHEAST OF MERIDIAN TO QUITMAN TO 7 MILES SOUTH OF         
  QUITMAN...AND MOVING EAST AT 55 MPH.

* SEVERE THUNDERSTORMS WILL BE NEAR...
  MELVIN...YANTLEY...HINTON AND CYRIL BY 1220 AM CST...
  PUSHMATAHA AND HALSELL BY 1225 AM CST...
  NEEDHAM...HODGEWOOD...ROCK SPRINGS AND RIDERWOOD BY 1230 AM CST...

A TORNADO WATCH REMAINS IN EFFECT UNTIL 3 AM CST FOR THE WARNED 
AREA. 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.

LAT...LON 3232 8842 3218 8845 3206 8846 3191 8847
      3192 8808 3200 8809 3206 8812 3210 8806
      3232 8796

$$
3 follow-up statements
000 
WWUS54 KMOB 250623
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
1222 AM CST SUN FEB 25 2007

ALC023-250645-
/O.CON.KMOB.SV.W.0013.000000T0000Z-070225T0645Z/
CHOCTAW AL-
1222 AM CST SUN FEB 25 2007

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1245 AM CST
FOR NORTHERN CHOCTAW COUNTY...

AT 1218 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING PENNY
SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THESE STORMS
WERE LOCATED ALONG A LINE EXTENDING FROM 9 MILES NORTH OF HALSELL TO 
YANTLEY TO HINTON...MOVING EAST AT 55 MPH.

LINE OF SEVERE THUNDERSTORMS WILL BE NEAR...
  LAND...HODGEWOOD...RIDERWOOD AND HALSELL BY 1230 AM CST...
  BUTLER AND LISMAN BY 1235 AM CST...
  ROBJOHN...MT STERLING...ARARAT AND JACHIN BY 1240 AM CST...

A TORNADO WATCH REMAINS IN EFFECT UNTIL 300 AM CST SUNDAY MORNING FOR
SOUTHWESTERN ALABAMA.

LAT...LON 3232 8842 3218 8845 3206 8846 3191 8847
      3192 8808 3200 8809 3206 8812 3210 8806
      3232 8796

$$
000 
WWUS54 KMOB 250635
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
1235 AM CST SUN FEB 25 2007

ALC023-250645-
/O.CON.KMOB.SV.W.0013.000000T0000Z-070225T0645Z/
CHOCTAW AL-
1235 AM CST SUN FEB 25 2007

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1245 AM CST
FOR NORTHERN CHOCTAW COUNTY...

AT 1232 AM CST...A LINE OF SEVERE THUNDERSTORMS WAS REPORTED CAPABLE
OF PRODUCING PENNY SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60
MPH.  THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM HALSELL
TO MELVIN...OR ALONG A LINE EXTENDING FROM 17 MILES NORTH OF BUTLER
TO 16 MILES SOUTHWEST OF BUTLER...MOVING EAST AT 50 MPH.

SEVERE THUNDERSTORMS WILL BE NEAR...
  NEEDHAM...LAND AND JACHIN BY 1240 AM CST...
  INDIAN SPRINGS...EDNA...BUTLER AND ROBJOHN BY 1245 AM CST...

A TORNADO WATCH REMAINS IN EFFECT UNTIL 300 AM CST SUNDAY MORNING FOR
SOUTHWESTERN ALABAMA.

LAT...LON 3232 8796 3230 8831 3213 8845 3191 8847
      3192 8808 3200 8809 3206 8812 3210 8806

$$
000 
WWUS54 KMOB 250647
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
1246 AM CST SUN FEB 25 2007

ALC023-250656-
/O.EXP.KMOB.SV.W.0013.000000T0000Z-070225T0645Z/
CHOCTAW AL-
1246 AM CST SUN FEB 25 2007

...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN CHOCTAW COUNTY WAS 
ALLOWED TO EXPIRE AT 1245 AM CST...

A TORNADO WATCH REMAINS IN EFFECT UNTIL 300 AM CST SUNDAY MORNING FOR
SOUTHWESTERN ALABAMA.

LAT...LON 3232 8796 3230 8831 3213 8845 3191 8847
      3192 8808 3200 8809 3206 8812 3210 8806

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 25, 1:20 AM CSTSevere Thunderstorm WarningMOBChoctaw, Clarke40 min
Feb 25, 2:09 AM CSTSevere Thunderstorm WarningMOBWilcox38 min

Nearby

Severe Thunderstorm Warnings in Alabama, 2007Every severe thunderstorm warning in 2007

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.