Alert archive / Alabama / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 191, NWS Mobile, AL
NWS Mobile, AL issued this severe thunderstorm warning at Aug 9, 2011, 7:59 PM CDT for Baldwin County, Alabama. It was in force for 41 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 9, 2011, 7:59 PM CDT (00:59 UTC)
- Expired
- Aug 9, 2011, 8:40 PM CDT
- In force
- 41 min
- Issued by
- NWS Mobile, AL
- Area
- Storm-based polygon
County Baldwin County, AL
The radar
The Mobile radar (KMOB), 61 km from the middle of the area, began a volume at 01:02 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 |
|---|---|---|---|
| Aug 9, 4:46 PM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
The nearest sounding before it
Slidell Radar S, LA (KSIL), launched 00:00Z, 1.0 hours before the alert went out and 187 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
- 3842 J/kg
- Mixed-layer CIN
- -6 J/kg
- Mixed-layer LCL
- 1016 m above ground
- 0-6 km bulk shear
- 10 kt
- 0-1 km storm-relative helicity
- 38 m²/s²
- 0-3 km storm-relative helicity
- 84 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
390
WUUS54 KMOB 100059
SVRMOB
ALC003-100145-
/O.NEW.KMOB.SV.W.0191.110810T0059Z-110810T0145Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
759 PM CDT TUE AUG 9 2011
THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
SOUTH CENTRAL BALDWIN COUNTY IN SOUTHWEST ALABAMA...
THIS INCLUDES THE CITIES OF...ORANGE BEACH...GULF SHORES...FOLEY...
* UNTIL 845 PM CDT
* AT 753 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS
OF 60 MPH. THIS STORM WAS LOCATED 7 MILES SOUTHEAST OF FAIRHOPE...
OR NEAR MAGNOLIA SPRINGS...AND MOVING SOUTH AT 20 MPH.
* THE SEVERE THUNDERSTORM WILL BE NEAR...
FOLEY AROUND 805 PM CDT...
BON SECOUR AROUND 815 PM CDT...
GULF SHORES AROUND 825 PM CDT...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IN ADDITION TO DAMAGING WINDS...CONTINUOUS CLOUD TO GROUND LIGHTNING
IS OCCURRING WITH THIS STORM. MOVE INDOORS IMMEDIATELY! LIGHTNING IS
ONE OF NATURES NUMBER ONE KILLERS. REMEMBER...IF YOU CAN HEAR
THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING.
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1100 PM CDT
TUESDAY EVENING FOR SOUTHWESTERN ALABAMA AND NORTHWEST FLORIDA AND
SOUTHEAST MISSISSIPPI.
&&
LAT...LON 3023 8788 3024 8789 3026 8778 3029 8775
3035 8783 3038 8784 3041 8791 3048 8792
3050 8772 3036 8760 3034 8761 3033 8757
3029 8755 3025 8765 3025 8769 3022 8778
TIME...MOT...LOC 0058Z 356DEG 18KT 3040 8781
$$2 follow-up statements
340
WWUS54 KMOB 100119
SVSMOB
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
819 PM CDT TUE AUG 9 2011
ALC003-100145-
/O.CON.KMOB.SV.W.0191.000000T0000Z-110810T0145Z/
BALDWIN AL-
819 PM CDT TUE AUG 9 2011
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 845 PM CDT
FOR SOUTH CENTRAL BALDWIN COUNTY...
AT 816 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN
EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR THE MOUTH OF WEEKS
BAY...OR 6 MILES WEST OF FOLEY...MOVING SOUTHEAST AT 20 MPH.
THE SEVERE THUNDERSTORM WILL BE NEAR...
BON SECOUR BY 825 PM CDT...
OYSTER BAY...GASQUE...PALMETTO BEACH BY 830 PM CDT...GULF SHORES
BY 835 PM CDT...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IN ADDITION TO DAMAGING WINDS...CONTINUOUS CLOUD TO GROUND LIGHTNING
IS OCCURRING WITH THIS STORM. MOVE INDOORS IMMEDIATELY! LIGHTNING IS
ONE OF NATURES NUMBER ONE KILLERS. REMEMBER...IF YOU CAN HEAR
THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING.
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1100 PM CDT
TUESDAY EVENING FOR SOUTHWESTERN ALABAMA AND NORTHWEST FLORIDA AND
SOUTHEAST MISSISSIPPI.
&&
LAT...LON 3023 8785 3024 8786 3026 8778 3029 8775
3035 8783 3038 8784 3039 8787 3045 8774
3027 8761 3025 8765 3025 8769 3022 8778
TIME...MOT...LOC 0119Z 332DEG 19KT 3033 8778
$$158
WWUS54 KMOB 100140
SVSMOB
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
840 PM CDT TUE AUG 9 2011
ALC003-100147-
/O.CAN.KMOB.SV.W.0191.000000T0000Z-110810T0145Z/
BALDWIN AL-
840 PM CDT TUE AUG 9 2011
...THE SEVERE THUNDERSTORM WARNING FOR SOUTH CENTRAL BALDWIN COUNTY
IS CANCELLED...THE STORM HAS WEAKENED
THE SEVERE THUNDERSTORM WATCH WILL BE CANCELLED AT 9 PM FOR
SOUTHWESTERN ALABAMA...NORTHWEST FLORIDA AND SOUTHEAST MISSISSIPPI.
LAT...LON 3023 8785 3024 8786 3026 8778 3029 8775
3035 8783 3038 8784 3039 8787 3045 8774
3027 8761 3025 8765 3025 8769 3022 8778
TIME...MOT...LOC 0137Z 356DEG 18KT 3021 8779
$$The office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 9, 7:16 PM CDT | Special Marine Warning | MOB | 59 min | |
| Aug 9, 7:24 PM CDT | Special Marine Warning | MOB | 81 min | |
| Aug 9, 8:17 PM CDT | Special Marine Warning | MOB | 88 min | |
| Aug 10, 2:14 PM CDT | Special Marine Warning | MOB | 46 min |
Nearby
Severe Thunderstorm Warnings in Alabama, 2011Every severe thunderstorm warning in 2011
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.