Alert archive / Alabama / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 70, NWS Mobile, AL
NWS Mobile, AL issued this severe thunderstorm warning at May 30, 2012, 2:23 AM CDT for Covington County, Alabama. 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
- May 30, 2012, 2:23 AM CDT (07:23 UTC)
- Expired
- May 30, 2012, 3:00 AM CDT
- In force
- 37 min
- Issued by
- NWS Mobile, AL
- Area
- Storm-based polygon
County Covington County, AL
The radar
The Eglin Afb radar (KEVX), 64 km from the middle of the area, began a volume at 07:22 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, 7.4 hours before the alert went out and 200 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
- 919 J/kg
- Mixed-layer CIN
- -6 J/kg
- Mixed-layer LCL
- 1477 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- 40 m²/s²
- 0-3 km storm-relative helicity
- 94 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
454
WUUS54 KMOB 300723
SVRMOB
ALC039-300800-
/O.NEW.KMOB.SV.W.0070.120530T0723Z-120530T0800Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
223 AM CDT WED MAY 30 2012
THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
SOUTHEASTERN COVINGTON COUNTY IN SOUTH CENTRAL ALABAMA...
* UNTIL 300 AM CDT
* AT 220 AM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER
SIZE HAIL AND DAMAGING WINDS OVER 60 MPH WAS LOCATED 7 MILES
NORTHEAST OF FLORALA...OR 8 MILES SOUTH OF ONYCHA...AND MOVING
SOUTHEAST AT 20 MPH.
* LOCATIONS IMPACTED INCLUDE...
RURAL SOUTHEASTERN COVINGTON COUNTY
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.
&&
LAT...LON 3099 8619 3099 8629 3110 8641 3122 8623
3119 8619 3100 8618
TIME...MOT...LOC 0723Z 316DEG 17KT 3110 8626
$$2 follow-up statements
511
WWUS54 KMOB 300742
SVSMOB
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
242 AM CDT WED MAY 30 2012
ALC039-300800-
/O.CON.KMOB.SV.W.0070.000000T0000Z-120530T0800Z/
COVINGTON AL-
242 AM CDT WED MAY 30 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 300 AM CDT
FOR SOUTHEASTERN COVINGTON COUNTY...
AT 240 AM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER
SIZE HAIL AND DAMAGING WINDS OVER 60 MPH WAS LOCATED 4 MILES
NORTHEAST OF FLORALA...OR 5 MILES NORTHEAST OF LOCKHART...MOVING
SOUTHEAST AT 15 MPH.
LOCATIONS IMPACTED INCLUDE...
RURAL SOUTHEASTERN COVINGTON COUNTY
PRECAUTIONARY/PREPAREDNESS ACTIONS...
CONTINUOUS CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM.
MOVE INDOORS IMMEDIATELY! IF YOU CAN HEAR THUNDER...YOU ARE CLOSE
ENOUGH TO BE STRUCK BY LIGHTNING.
&&
LAT...LON 3118 8619 3100 8618 3099 8619 3099 8629
3108 8639
TIME...MOT...LOC 0742Z 310DEG 14KT 3105 8628
$$644
WWUS54 KMOB 300803
SVSMOB
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
303 AM CDT WED MAY 30 2012
ALC039-300812-
/O.EXP.KMOB.SV.W.0070.000000T0000Z-120530T0800Z/
COVINGTON AL-
303 AM CDT WED MAY 30 2012
...THE SEVERE THUNDERSTORM WARNING HAS BEEN ALLOWED TO EXPIRE FOR
SOUTHEASTERN COVINGTON COUNTY...
AT 258 AM CDT...THE STORM THAT PROMPTED THE WARNING FOR SOUTHEASTERN
COVINGTON COUNTY IS BEGINNING TO MOVE OUT OF THE COUNTY...THUS THE
SEVERE THUNDERSTORM WARNING HAS BEEN ALLOWED TO EXPIRE.
SMALL HAIL AND STRONG WINDS OF 40 TO 50 MPH ARE STILL POSSIBLE IN
EXTREME SOUTHEAST COVINGTON COUNTY THROUGH 315 AM.
LAT...LON 3118 8619 3100 8618 3099 8619 3099 8629
3108 8639
TIME...MOT...LOC 0742Z 310DEG 14KT 3105 8628
$$The office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 29, 9:32 PM CDT | Special Marine Warning | MOB | 88 min | |
| May 30, 2:12 PM CDT | Special Marine Warning | MOB | 93 min | |
| May 30, 2:54 PM CDT | Severe Thunderstorm Warning | MOB | Mobile | 66 min |
| May 30, 3:00 PM CDT | Severe Thunderstorm Warning | MOB | Baldwin | 60 min |
| May 30, 3:19 PM CDT | Severe Thunderstorm Warning | MOB | Baldwin, Mobile | 56 min |
| May 30, 4:03 PM CDT | Severe Thunderstorm Warning | MOB | Mobile | 57 min |
| May 30, 4:12 PM CDT | Severe Thunderstorm Warning | MOB | Clarke | 37 min |
| May 30, 4:16 PM CDT | Severe Thunderstorm Warning | MOB | Mobile | 59 min |
| May 30, 4:21 PM CDT | Severe Thunderstorm Warning | MOB | Mobile | 54 min |
| May 30, 5:06 PM CDT | Severe Thunderstorm Warning | MOB | Conecuh, Monroe | 54 min |
| May 30, 5:14 PM CDT | Severe Thunderstorm Warning | MOB | Choctaw | 24 min |
| May 30, 5:38 PM CDT | Severe Thunderstorm Warning | MOB | Clarke | 67 min |
| May 30, 5:52 PM CDT | Severe Thunderstorm Warning | MOB | Monroe | 29 min |
| May 30, 6:20 PM CDT | Severe Thunderstorm Warning | MOB | Covington, Escambia | 32 min |
| May 30, 6:47 PM CDT | Severe Thunderstorm Warning | MOB | Choctaw | 46 min |
Nearby
Severe Thunderstorm Warnings in Alabama, 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.