Alert archive / Mississippi / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 197, NWS Mobile, AL
NWS Mobile, AL issued this severe thunderstorm warning at Sep 4, 2012, 6:51 PM CDT for Perry County, Stone County, Mississippi. It was in force for 54 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
- Sep 4, 2012, 6:51 PM CDT (23:51 UTC)
- Expired
- Sep 4, 2012, 7:45 PM CDT
- In force
- 54 min
- Issued by
- NWS Mobile, AL
- Area
- Storm-based polygon
Counties Perry County, MS, Stone County, MS
The radar
The Mobile radar (KMOB), 95 km from the middle of the area, began a volume at 23:51 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 nearest sounding before it
Slidell Radar S, LA (KSIL), launched 12:00Z, 11.9 hours before the alert went out and 78 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
- 1547 J/kg
- Mixed-layer CIN
- -25 J/kg
- Mixed-layer LCL
- 675 m above ground
- 0-6 km bulk shear
- 18 kt
- 0-1 km storm-relative helicity
- -28 m²/s²
- 0-3 km storm-relative helicity
- 34 m²/s²
- Significant tornado parameter
- -0.2
- Supercell composite
- -1.5
The text
As transmitted, in the capitals the NWS used until 2016.
782
WUUS54 KMOB 042351
SVRMOB
MSC111-131-050045-
/O.NEW.KMOB.SV.W.0197.120904T2351Z-120905T0045Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
651 PM CDT TUE SEP 4 2012
THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
SOUTHWESTERN PERRY COUNTY IN SOUTHEAST MISSISSIPPI...
STONE COUNTY IN SOUTHEAST MISSISSIPPI...
* UNTIL 745 PM CDT
* AT 646 PM CDT...A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING
DAMAGING WINDS OVER 60 MPH WERE LOCATED ALONG A LINE EXTENDING FROM
15 MILES NORTHWEST OF WIGGINS TO 8 MILES EAST OF WIGGINS...AND
MOVING SOUTH AT 20 MPH.
* LOCATIONS IMPACTED INCLUDE...
WIGGINS... PERKINSTON... MCHENRY...
LAT...LON 3091 8935 3092 8934 3091 8915 3103 8915
3102 8898 3067 8892 3067 8923 3064 8924
3064 8934 3065 8935
TIME...MOT...LOC 2351Z 002DEG 18KT 3096 8934 3084 8901
$$2 follow-up statements
273
WWUS54 KMOB 050013
SVSMOB
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
713 PM CDT TUE SEP 4 2012
MSC111-050023-
/O.CAN.KMOB.SV.W.0197.000000T0000Z-120905T0045Z/
PERRY MS-
713 PM CDT TUE SEP 4 2012
...THE SEVERE THUNDERSTORM WARNING HAS BEEN CANCELLED FOR
SOUTHWESTERN PERRY COUNTY...
AT 709 PM CDT...THE STORM THAT PROMPTED THE WARNING FOR SOUTHWESTERN
PERRY COUNTY HAS MOVED OUT OF THE COUNTY...THUS THE SEVERE
THUNDERSTORM WARNING HAS BEEN CANCELLED.
LAT...LON 3091 8935 3092 8934 3091 8915 3086 8900
3067 8899 3067 8923 3064 8924 3064 8934
3065 8935
TIME...MOT...LOC 0013Z 002DEG 18KT 3085 8934 3073 8901
$$
MSC131-050045-
/O.CON.KMOB.SV.W.0197.000000T0000Z-120905T0045Z/
STONE MS-
713 PM CDT TUE SEP 4 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 745 PM CDT
FOR STONE COUNTY...
AT 709 PM CDT...A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING
DAMAGING WINDS OVER 60 MPH WERE LOCATED ALONG A LINE EXTENDING FROM
12 MILES WEST OF WIGGINS TO 10 MILES SOUTHEAST OF WIGGINS...MOVING
SOUTH AT 20 MPH.
LOCATIONS IMPACTED INCLUDE...
WIGGINS... PERKINSTON... MCHENRY...
LAT...LON 3091 8935 3092 8934 3091 8915 3086 8900
3067 8899 3067 8923 3064 8924 3064 8934
3065 8935
TIME...MOT...LOC 0013Z 002DEG 18KT 3085 8934 3073 8901
$$336
WWUS54 KMOB 050036
SVSMOB
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
736 PM CDT TUE SEP 4 2012
MSC131-050045-
/O.CON.KMOB.SV.W.0197.000000T0000Z-120905T0045Z/
STONE MS-
736 PM CDT TUE SEP 4 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 745 PM CDT
FOR WESTERN STONE COUNTY...
AT 733 PM CDT...A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING
DAMAGING WINDS OVER 60 MPH WERE LOCATED ALONG A LINE EXTENDING FROM
14 MILES SOUTHWEST OF WIGGINS TO 14 MILES SOUTH OF WIGGINS...MOVING
SOUTH AT 20 MPH.
LOCATIONS IMPACTED INCLUDE...
MCHENRY...
LAT...LON 3065 8935 3092 8934 3078 8915 3068 8913
3067 8923 3064 8924 3064 8934
TIME...MOT...LOC 0036Z 002DEG 18KT 3073 8934 3064 8916
$$The office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 4, 8:12 AM CDT | Flash Flood Watch | MOB | George, Greene, Stone | 25 hr |
| Sep 4, 4:44 PM CDT | Areal Flood Advisory | MOB | Greene, Perry, Wayne | 2 hr |
| Sep 4, 5:01 PM CDT | Flash Flood Warning | MOB | Greene, Perry, Wayne | 6 hr |
| Sep 4, 5:33 PM CDT | Severe Thunderstorm Warning | MOB | Perry | 57 min |
| Sep 4, 6:00 PM CDT | Severe Thunderstorm Warning | MOB | Perry, Stone | 60 min |
| Sep 4, 6:49 PM CDT | Severe Thunderstorm Warning | MOB | Greene, Wayne | 34 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.