Alert archive / Alabama / Tornado Warnings in 2012
Tornado Warning 49, NWS Mobile, AL
NWS Mobile, AL issued this tornado warning at Aug 30, 2012, 3:53 AM CDT for Covington County, Escambia County, Alabama; Okaloosa County, Florida. It was in force for 37 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
- Aug 30, 2012, 3:53 AM CDT (08:53 UTC)
- Expired
- Aug 30, 2012, 4:30 AM CDT
- In force
- 37 min
- Issued by
- NWS Mobile, AL
- Area
- Storm-based polygon
Counties Covington County, AL, Escambia County, AL, Okaloosa County, FL
The radar
The Eglin Afb radar (KEVX), 85 km from the middle of the area, began a volume at 08:53 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
Tallahassee Rgnl, FL (KTLH), launched 00:00Z, 8.9 hours before the alert went out and 235 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
- 837 J/kg
- Mixed-layer CIN
- -21 J/kg
- Mixed-layer LCL
- 603 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 160 m²/s²
- 0-3 km storm-relative helicity
- 116 m²/s²
- Significant tornado parameter
- 0.4
- Supercell composite
- 2.4
The text
As transmitted, in the capitals the NWS used until 2016.
664 WFUS54 KMOB 300853 TORMOB ALC039-053-FLC091-300930- /O.NEW.KMOB.TO.W.0049.120830T0853Z-120830T0930Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE MOBILE AL 353 AM CDT THU AUG 30 2012 THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A * TORNADO WARNING FOR... NORTH CENTRAL OKALOOSA COUNTY IN NORTHWEST FLORIDA... SOUTHWESTERN COVINGTON COUNTY IN SOUTH CENTRAL ALABAMA... EXTREME SOUTHEASTERN ESCAMBIA COUNTY IN SOUTH CENTRAL ALABAMA... * UNTIL 430 AM CDT * AT 351 AM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO WAS LOCATED 5 MILES NORTHWEST OF CRESTVIEW...OR 4 MILES EAST OF BAKER...MOVING NORTH AT 40 MPH. * LOCATIONS IMPACTED INCLUDE... BAKER... PRECAUTIONARY/PREPAREDNESS ACTIONS... A TORNADO WATCH REMAINS IN EFFECT UNTIL 800 AM CDT THURSDAY MORNING FOR SOUTHWEST ALABAMA AND SOUTHEAST MISSISSIPPI. && LAT...LON 3113 8676 3116 8653 3078 8651 3076 8672 TIME...MOT...LOC 0853Z 174DEG 33KT 3086 8663 $$
3 follow-up statements
040 WWUS54 KMOB 300914 SVSMOB SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE MOBILE AL 414 AM CDT THU AUG 30 2012 ALC039-053-FLC091-300930- /O.CON.KMOB.TO.W.0049.000000T0000Z-120830T0930Z/ COVINGTON AL-ESCAMBIA AL-OKALOOSA FL- 414 AM CDT THU AUG 30 2012 ...A TORNADO WARNING REMAINS IN EFFECT UNTIL 430 AM CDT FOR NORTH CENTRAL OKALOOSA...EXTREME SOUTHEASTERN ESCAMBIA AND SOUTHWESTERN COVINGTON COUNTIES... AT 412 AM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO WAS LOCATED 16 MILES NORTH OF CRESTVIEW...OR 10 MILES WEST OF LAUREL HILL...MOVING NORTH AT 30 MPH. LOCATIONS IMPACTED INCLUDE... RURAL NORTH CENTRAL OKALOOSA COUNTY RURAL EXTREME SOUTHEASTERN ESCAMBIA COUNTY RURAL SOUTHWESTERN COVINGTON COUNTY PRECAUTIONARY/PREPAREDNESS ACTIONS... WHEN A TORNADO WARNING IS ISSUED BASED ON DOPPLER RADAR...IT MEANS STRONG ROTATION HAS BEEN DETECTED AND A TORNADO MAY ALREADY BE ON THE GROUND...OR IS EXPECTED TO DEVELOP SHORTLY. A TORNADO WATCH REMAINS IN EFFECT UNTIL 800 AM CDT THURSDAY MORNING FOR SOUTHWEST ALABAMA AND SOUTHEAST MISSISSIPPI. && LAT...LON 3113 8676 3116 8653 3096 8655 3096 8670 TIME...MOT...LOC 0914Z 172DEG 24KT 3100 8663 $$
110
WWUS54 KMOB 300922
SVSMOB
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
422 AM CDT THU AUG 30 2012
ALC053-FLC091-300931-
/O.CAN.KMOB.TO.W.0049.000000T0000Z-120830T0930Z/
ESCAMBIA AL-OKALOOSA FL-
422 AM CDT THU AUG 30 2012
...THE TORNADO WARNING HAS BEEN CANCELLED FOR NORTH CENTRAL OKALOOSA
AND EXTREME SOUTHEASTERN ESCAMBIA COUNTIES...
AT 419 AM CDT...THE STORM THAT PROMPTED THE WARNING FOR NORTH CENTRAL
OKALOOSA AND EXTREME SOUTHEASTERN ESCAMBIA COUNTIES HAS WEAKENED TO
BELOW SEVERE LIMITS...THUS THE TORNADO WARNING HAS BEEN CANCELLED.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 800 AM CDT THURSDAY MORNING
FOR SOUTHWEST ALABAMA AND SOUTHEAST MISSISSIPPI.
LAT...LON 3099 8656 3100 8668 3108 8671 3114 8670
3116 8658
TIME...MOT...LOC 0921Z 172DEG 24KT 3105 8664
$$
ALC039-300930-
/O.CON.KMOB.TO.W.0049.000000T0000Z-120830T0930Z/
COVINGTON AL-
422 AM CDT THU AUG 30 2012
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 430 AM CDT FOR
SOUTHWESTERN COVINGTON COUNTY...
AT 419 AM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED 18 MILES WEST OF FLORALA...OR 11 MILES WEST OF LAUREL
HILL...MOVING NORTH AT 30 MPH.
LOCATIONS IMPACTED INCLUDE...
RURAL SOUTHWESTERN COVINGTON COUNTY
PRECAUTIONARY/PREPAREDNESS ACTIONS...
WHEN A TORNADO WARNING IS ISSUED BASED ON DOPPLER RADAR...IT MEANS
STRONG ROTATION HAS BEEN DETECTED AND A TORNADO MAY ALREADY BE ON THE
GROUND...OR IS EXPECTED TO DEVELOP SHORTLY.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 800 AM CDT THURSDAY MORNING
FOR SOUTHWEST ALABAMA AND SOUTHEAST MISSISSIPPI.
&&
LAT...LON 3099 8656 3100 8668 3108 8671 3114 8670
3116 8658
TIME...MOT...LOC 0921Z 172DEG 24KT 3105 8664
$$918
WWUS54 KMOB 300928
SVSMOB
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
428 AM CDT THU AUG 30 2012
ALC039-300938-
/O.EXP.KMOB.TO.W.0049.000000T0000Z-120830T0930Z/
COVINGTON AL-
428 AM CDT THU AUG 30 2012
...THE TORNADO WARNING HAS BEEN ALLOWED TO EXPIRE FOR SOUTHWESTERN
COVINGTON COUNTY...
AT 427 AM CDT...THE STORM THAT PROMPTED THE WARNING FOR SOUTHWESTERN
COVINGTON COUNTY HAS WEAKENED TO BELOW SEVERE LIMITS...THUS THE
TORNADO WARNING WILL BE ALLOWED TO EXPIRE AT 430 AM CDT.
TO REPORT SEVERE WEATHER...CALL (800) 284-9059.
LAT...LON 3099 8656 3100 8668 3108 8671 3114 8670
3116 8658
TIME...MOT...LOC 0928Z 172DEG 24KT 3110 8665
$$The office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 29, 7:27 PM CDT | Tornado Warning | MOB | Monroe, Wilcox | 30 min |
| Aug 29, 7:29 PM CDT | Small Craft Advisory | MOB | 33 hr | |
| Aug 29, 7:45 PM CDT | Coastal Flood Warning | MOB | 21 hr | |
| Aug 30, 12:22 AM CDT | Flash Flood Warning | MOB | Mobile, Washington | 6 hr |
| Aug 30, 12:52 AM CDT | Wind Advisory | MOB | Washington | 16 hr |
| Aug 30, 2:28 AM CDT | Areal Flood Warning | MOB | Mobile, Washington | 12 hr |
| Aug 30, 2:46 AM CDT | Tornado Warning | MOB | Covington | 33 min |
| Aug 30, 4:09 AM CDT | Tornado Warning | MOB | Butler, Crenshaw | 16 min |
| Aug 30, 4:31 AM CDT | Tornado Warning | MOB | Washington | 29 min |
| Aug 30, 4:32 AM CDT | Tornado Warning | MOB | Covington | 28 min |
| Aug 30, 6:43 AM CDT | Tornado Warning | MOB | Choctaw, Washington | 37 min |
| Aug 30, 7:41 AM CDT | Tornado Warning | MOB | Mobile | 33 min |
| Aug 30, 8:10 AM CDT | Tornado Warning | MOB | Choctaw, Washington | 35 min |
| Aug 30, 8:13 AM CDT | Tornado Warning | MOB | Washington | 32 min |
| Aug 30, 8:45 AM CDT | Tornado Warning | MOB | Choctaw, Washington | 45 min |
| Aug 30, 9:01 AM CDT | Tornado Warning | MOB | Mobile, Washington | 44 min |
| Aug 30, 10:16 AM CDT | Tornado Warning | MOB | Choctaw, Washington | 44 min |
| Aug 30, 10:56 AM CDT | Tornado Warning | MOB | Choctaw | 49 min |
| Aug 30, 11:32 AM CDT | Severe Thunderstorm Warning | MOB | Mobile | 43 min |
| Aug 30, 11:44 AM CDT | Flash Flood Warning | MOB | Mobile, Washington | 6 hr |
| Aug 30, 11:56 AM CDT | Tornado Warning | MOB | Choctaw | 33 min |
| Aug 30, 4:29 PM CDT | High Surf Advisory | MOB | 20 hr |
Nearby
Tornado Warnings in Alabama, 2012Tornado Warnings in Florida, 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.