Alert archive / Mississippi / Tornado Warnings in 2012
Tornado Warning 44, NWS Mobile, AL
NWS Mobile, AL issued this tornado warning at Aug 29, 2012, 1:27 PM CDT for Stone County, Mississippi. It was in force for 48 min. 2 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Aug 29, 2012, 1:27 PM CDT (18:27 UTC)
- Expired
- Aug 29, 2012, 2:15 PM CDT
- In force
- 48 min
- Issued by
- NWS Mobile, AL
- Area
- Storm-based polygon
County Stone County, MS
The radar
The Mobile radar (KMOB), 90 km from the middle of the area, began a volume at 18:27 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 29, 1:37 PM CDT | TSTM WND DMG | Mchenry, MS | DAMAGE TO A GROCERY STORE REPORTED IN MCHENRY. NOW BELIEVED TO BE STRAIGHT LINE WIND DAMAGE INSTEAD OF A TORNADO AS EARLIER REPORTED. |
| Aug 29, 1:37 PM CDT | TORNADO | Mchenry, MS | ROOF WAS BLOWN OFF OF A GROCERY STORE. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Aug 28, 6:47 PM CDT | Tornado Watch | SPC | 21 hr |
| Aug 29, 6:36 AM CDT | Tornado Watch | SPC | 9 hr |
The nearest sounding before it
Slidell Radar S, LA (KSIL), launched 12:00Z, 6.5 hours before the alert went out and 74 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
- 625 J/kg
- Mixed-layer CIN
- 0 J/kg
- Mixed-layer LCL
- 465 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 298 m²/s²
- 0-3 km storm-relative helicity
- 338 m²/s²
- Significant tornado parameter
- 0.9
- Supercell composite
- 8.7
The text
As transmitted, in the capitals the NWS used until 2016.
962
WFUS54 KMOB 291827
TORMOB
MSC131-291915-
/O.NEW.KMOB.TO.W.0044.120829T1827Z-120829T1915Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MOBILE AL
127 PM CDT WED AUG 29 2012
THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A
* TORNADO WARNING FOR...
STONE COUNTY IN SOUTHEAST MISSISSIPPI...
* UNTIL 215 PM CDT
* AT 123 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
TORNADO WAS LOCATED 11 MILES NORTH OF GULFPORT...OR 3 MILES
NORTHEAST OF LYMAN...MOVING NORTHWEST AT 45 MPH.
* LOCATIONS IMPACTED INCLUDE...
WIGGINS... PERKINSTON... MCHENRY...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE
LOWEST FLOOR OF A STURDY BUILDING.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 400 PM CDT WEDNESDAY
AFTERNOON FOR SOUTHWEST ALABAMA AND SOUTHEAST MISSISSIPPI.
&&
LAT...LON 3091 8897 3067 8897 3067 8923 3065 8924
3064 8924 3064 8931 3069 8935 3091 8935
TIME...MOT...LOC 1827Z 155DEG 40KT 3059 8913
$$1 follow-up statement
787
WWUS54 KMOB 291901
SVSMOB
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
201 PM CDT WED AUG 29 2012
MSC131-291915-
/O.CON.KMOB.TO.W.0044.000000T0000Z-120829T1915Z/
STONE MS-
201 PM CDT WED AUG 29 2012
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 215 PM CDT FOR STONE
COUNTY...
AT 137 PM CDT...STONE COUNTY EMERGENCY MANAGEMENT REPORTED THAT
A ROOF WAS TAKEN OFF OF A GROCERY STORE IN MCHENRY.
AT 200 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED 10 MILES SOUTHWEST OF WIGGINS...OR 8 MILES WEST OF
PERKINSTON...MOVING NORTHWEST AT 35 MPH.
LOCATIONS IMPACTED INCLUDE...
WIGGINS... PERKINSTON... MCHENRY...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE
LOWEST FLOOR OF A STURDY BUILDING.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 400 PM CDT WEDNESDAY
AFTERNOON FOR SOUTHWEST ALABAMA AND SOUTHEAST MISSISSIPPI.
&&
LAT...LON 3091 8897 3067 8897 3067 8923 3065 8924
3064 8924 3064 8931 3069 8935 3091 8935
TIME...MOT...LOC 1858Z 145DEG 30KT 3080 8929
$$The office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 28, 11:46 PM CDT | Areal Flood Advisory | MOB | George | 119 min |
| Aug 29, 5:33 AM CDT | Tornado Warning | MOB | George, Stone | 27 min |
| Aug 29, 7:51 AM CDT | Tornado Warning | MOB | George, Perry, Stone | 39 min |
| Aug 29, 8:46 AM CDT | Flash Flood Warning | MOB | George, Greene, Perry, Stone | 6 hr |
| Aug 29, 9:36 AM CDT | Tornado Warning | MOB | George, Greene, Perry | 39 min |
| Aug 29, 10:18 AM CDT | Wind Advisory | MOB | George, Greene, Perry, Stone | 14 hr |
| Aug 29, 12:35 PM CDT | Tornado Warning | MOB | Greene, Perry, Wayne | 40 min |
| Aug 29, 1:17 PM CDT | Tornado Warning | MOB | Greene, Perry, Wayne | 36 min |
| Aug 29, 2:52 PM CDT | Flash Flood Warning | MOB | George, Greene, Perry, Stone | 6 hr |
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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.