Alert archive / Alabama / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 46, NWS Mobile, AL
NWS Mobile, AL issued this severe thunderstorm warning at Apr 5, 2012, 10:24 AM CDT for Choctaw County, Alabama; Wayne County, Mississippi. It was in force for 66 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
- Apr 5, 2012, 10:24 AM CDT (15:24 UTC)
- Expired
- Apr 5, 2012, 11:30 AM CDT
- In force
- 66 min
- Issued by
- NWS Mobile, AL
- Area
- Storm-based polygon
Counties Choctaw County, AL, Wayne County, MS
The radar
The Mobile radar (KMOB), 138 km from the middle of the area, began a volume at 15:27 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.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Apr 5, 9:14 AM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
The nearest sounding before it
Jackson, MS (KJAN), launched 12:00Z, 3.4 hours before the alert went out and 178 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.
- Mixed-layer CAPE
- 2026 J/kg
- Mixed-layer CIN
- -11 J/kg
- Mixed-layer LCL
- 505 m above ground
- 0-6 km bulk shear
- 64 kt
- 0-1 km storm-relative helicity
- 19 m²/s²
- 0-3 km storm-relative helicity
- 65 m²/s²
- Significant tornado parameter
- 0.5
- Supercell composite
- 2.3
The text
As transmitted, in the capitals the NWS used until 2016.
962
WUUS54 KMOB 051524
SVRMOB
ALC023-MSC153-051630-
/O.NEW.KMOB.SV.W.0046.120405T1524Z-120405T1630Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
1024 AM CDT THU APR 5 2012
THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
NORTHERN WAYNE COUNTY IN SOUTHEAST MISSISSIPPI...
CHOCTAW COUNTY IN SOUTHWEST ALABAMA...
* UNTIL 1130 AM CDT
* AT 1024 AM CDT...A LINE OF SEVERE THUNDERSTORMS CAPABLE OF
PRODUCING QUARTER SIZE HAIL AND DAMAGING WINDS OVER 60 MPH WERE
LOCATED ALONG A LINE EXTENDING FROM 8 MILES NORTHWEST OF QUITMAN TO
12 MILES SOUTHWEST OF QUITMAN TO 10 MILES NORTH OF LAUREL...AND
MOVING EAST AT 50 MPH.
* LOCATIONS IMPACTED INCLUDE...
TOXEY... SILAS... NEEDHAM...
GILBERTOWN... BUTLER...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
CONTINUOUS CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM.
MOVE INDOORS IMMEDIATELY! IF YOU CAN HEAR THUNDER...YOU ARE CLOSE
ENOUGH TO BE STRUCK BY LIGHTNING.
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 500 PM CDT
THURSDAY AFTERNOON FOR SOUTHWESTERN ALABAMA AND SOUTHEAST
MISSISSIPPI.
&&
LAT...LON 3218 8801 3208 8804 3205 8811 3201 8811
3199 8806 3195 8812 3192 8809 3193 8805
3190 8812 3182 8818 3176 8815 3176 8811
3174 8810 3173 8812 3171 8895 3183 8894
3184 8873 3190 8848 3218 8844
TIME...MOT...LOC 1524Z 270DEG 47KT 3210 8878 3195 8884
3183 8905
$$
PURDY3 follow-up statements
417
WWUS54 KMOB 051536
SVSMOB
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
1036 AM CDT THU APR 5 2012
ALC023-MSC153-051630-
/O.CON.KMOB.SV.W.0046.000000T0000Z-120405T1630Z/
CHOCTAW AL-WAYNE MS-
1036 AM CDT THU APR 5 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1130 AM CDT
FOR NORTHERN WAYNE AND CHOCTAW COUNTIES...
AT 1036 AM CDT...A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING
QUARTER SIZE HAIL AND DAMAGING WINDS OVER 60 MPH WERE LOCATED ALONG A
LINE EXTENDING FROM 14 MILES NORTHEAST OF QUITMAN TO 7 MILES SOUTH OF
QUITMAN TO 12 MILES EAST OF LAUREL...MOVING EAST AT 50 MPH.
SEVERE THUNDERSTORMS WILL BE NEAR...
NEEDHAM AROUND 1055 AM CDT...
TOXEY AROUND 1100 AM CDT...
GILBERTOWN AROUND 1105 AM CDT...
SILAS AROUND 1115 AM CDT...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
CONTINUOUS CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM.
MOVE INDOORS IMMEDIATELY! IF YOU CAN HEAR THUNDER...YOU ARE CLOSE
ENOUGH TO BE STRUCK BY LIGHTNING.
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 500 PM CDT
THURSDAY AFTERNOON FOR SOUTHWESTERN ALABAMA AND SOUTHEAST
MISSISSIPPI.
&&
LAT...LON 3218 8801 3208 8804 3205 8811 3201 8811
3199 8806 3195 8812 3192 8809 3193 8806
3190 8812 3182 8818 3176 8815 3174 8810
3173 8811 3171 8895 3183 8894 3185 8866
3190 8848 3218 8844
TIME...MOT...LOC 1536Z 270DEG 47KT 3215 8849 3195 8865
3175 8892
$$
PURDY390
WWUS54 KMOB 051559
SVSMOB
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
1059 AM CDT THU APR 5 2012
ALC023-MSC153-051630-
/O.CON.KMOB.SV.W.0046.000000T0000Z-120405T1630Z/
CHOCTAW AL-WAYNE MS-
1059 AM CDT THU APR 5 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1130 AM CDT
FOR NORTHERN WAYNE AND CHOCTAW COUNTIES...
AT 1058 AM CDT...A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING
QUARTER SIZE HAIL AND DAMAGING WINDS OVER 60 MPH WERE LOCATED ALONG A
LINE EXTENDING FROM 11 MILES WEST OF BUTLER TO 16 MILES SOUTHEAST OF
QUITMAN TO 7 MILES NORTHWEST OF WAYNESBORO TO 12 MILES EAST OF
LAUREL...MOVING EAST AT 40 MPH.
SEVERE THUNDERSTORMS WILL BE NEAR...
TOXEY AROUND 1110 AM CDT...
GILBERTOWN AROUND 1115 AM CDT...
SILAS AROUND 1125 AM CDT...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
CONTINUOUS CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM.
MOVE INDOORS IMMEDIATELY! IF YOU CAN HEAR THUNDER...YOU ARE CLOSE
ENOUGH TO BE STRUCK BY LIGHTNING.
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 500 PM CDT
THURSDAY AFTERNOON FOR SOUTHWESTERN ALABAMA AND SOUTHEAST
MISSISSIPPI.
&&
LAT...LON 3218 8801 3208 8804 3205 8811 3201 8811
3199 8806 3195 8812 3192 8809 3193 8806
3190 8812 3182 8818 3176 8815 3174 8810
3173 8811 3171 8895 3183 8894 3185 8866
3190 8848 3218 8844
TIME...MOT...LOC 1558Z 270DEG 33KT 3214 8834 3194 8844
3176 8866 3171 8891
$$
PURDY228
WWUS54 KMOB 051617
SVSMOB
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
1117 AM CDT THU APR 5 2012
ALC023-MSC153-051630-
/O.CON.KMOB.SV.W.0046.000000T0000Z-120405T1630Z/
CHOCTAW AL-WAYNE MS-
1117 AM CDT THU APR 5 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1130 AM CDT
FOR NORTHERN WAYNE AND CHOCTAW COUNTIES...
AT 1117 AM CDT...A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING
QUARTER SIZE HAIL AND DAMAGING WINDS OVER 60 MPH WERE LOCATED ALONG A
LINE EXTENDING FROM 8 MILES NORTHEAST OF BUTLER TO 14 MILES SOUTH OF
BUTLER TO 8 MILES NORTHEAST OF WAYNESBORO...MOVING EAST AT 40 MPH.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THESE ARE DANGEROUS STORMS. PREPARE FOR DESTRUCTIVE HAIL AND DAMAGING
WINDS. PEOPLE OUTSIDE SHOULD MOVE INSIDE A STRONG BUILDING BUT AWAY
FROM WINDOWS.
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 500 PM CDT
THURSDAY AFTERNOON FOR SOUTHWESTERN ALABAMA AND SOUTHEAST
MISSISSIPPI.
&&
LAT...LON 3218 8801 3208 8804 3205 8811 3201 8811
3199 8806 3195 8812 3192 8809 3193 8806
3190 8813 3182 8818 3176 8815 3174 8810
3173 8811 3171 8895 3183 8894 3185 8866
3190 8848 3218 8844
TIME...MOT...LOC 1617Z 270DEG 33KT 3214 8807 3189 8826
3172 8849
$$
PURDYThe office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 5, 8:23 AM CDT | Special Marine Warning | MOB | 97 min | |
| Apr 5, 11:24 AM CDT | Severe Thunderstorm Warning | MOB | Choctaw, Clarke, Washington, Wilcox | 66 min |
| Apr 5, 1:01 PM CDT | Severe Thunderstorm Warning | MOB | Conecuh, Escambia, Monroe | 59 min |
| Apr 5, 5:10 PM CDT | Special Marine Warning | MOB | 65 min | |
| Apr 5, 6:15 PM CDT | Special Marine Warning | MOB | 60 min |
Nearby
Severe Thunderstorm Warnings in Alabama, 2012Severe 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.