Alert archive / Alabama / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 15, NWS Mobile, AL
NWS Mobile, AL issued this severe thunderstorm warning at Feb 18, 2012, 3:59 PM CST for Baldwin County, Mobile County, Alabama. It was in force for 61 min. 1 report 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
- Feb 18, 2012, 3:59 PM CST (21:59 UTC)
- Expired
- Feb 18, 2012, 5:00 PM CST
- In force
- 61 min
- Issued by
- NWS Mobile, AL
- Area
- Storm-based polygon
Counties Baldwin County, AL, Mobile County, AL
The radar
The Mobile radar (KMOB), 37 km from the middle of the area, began a volume at 22:00 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 |
|---|---|---|---|
| Feb 18, 4:10 PM CST | TORNADO | Grand Bay, AL | PUBLIC REPORT OF A TORANDO TOUCHDOWN NEAR GRAND BAY,AL. ALSO PRODUCED TREE DAMAGE. |
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 |
|---|---|---|---|
| Feb 18, 11:49 AM CST | Tornado Watch | SPC | 5 hr |
The nearest sounding before it
Slidell Radar S, LA (KSIL), launched 12:00Z, 10.0 hours before the alert went out and 154 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 449 m above ground
- 0-6 km bulk shear
- 57 kt
- 0-1 km storm-relative helicity
- 160 m²/s²
- 0-3 km storm-relative helicity
- 177 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
921
WUUS54 KMOB 182159
SVRMOB
ALC003-097-182300-
/O.NEW.KMOB.SV.W.0015.120218T2159Z-120218T2300Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
359 PM CST SAT FEB 18 2012
THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
SOUTHWESTERN BALDWIN COUNTY IN SOUTHWEST ALABAMA...
SOUTHERN MOBILE COUNTY IN SOUTHWEST ALABAMA...
* UNTIL 500 PM CST
* AT 358 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DESTRUCTIVE WINDS IN EXCESS OF 70 MPH. THESE STORMS
WERE LOCATED ALONG A LINE EXTENDING FROM 10 MILES NORTHEAST OF
ESCATAWPA TO 5 MILES WEST OF GRAND BAY TO 7 MILES SOUTH OF
PASCAGOULA...AND MOVING EAST AT 50 MPH.
* LOCATIONS IMPACTED INCLUDE...
CODEN... GULF SHORES... TILLMANS CORNER...
THEODORE... TANNER WILLIAMS... I10 AND I65...
GRAND BAY... BELLE FONTAINE... BAYOU LA BATRE...
THIS INCLUDES INTERSTATE 10 BETWEEN MILE MARKERS 1 AND 49.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
DOPPLER RADAR HAS INDICATED SOME WEAK ROTATION WITHIN THIS STORM.
WHILE NOT IMMEDIATELY LIKELY...A TORNADO MAY STILL DEVELOP. IF A
TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A
STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM.
THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD
TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 500 PM CST SATURDAY AFTERNOON
FOR SOUTHWESTERN ALABAMA AND NORTHWEST FLORIDA AND SOUTHEAST
MISSISSIPPI.
&&
LAT...LON 3028 8777 3041 8792 3062 8792 3068 8801
3030 8814 3025 8807 3022 8831 3023 8832
3027 8813 3032 8823 3035 8820 3037 8824
3032 8826 3037 8826 3039 8833 3035 8840
3070 8841 3068 8769 3024 8766 3022 8803
TIME...MOT...LOC 2158Z 272DEG 42KT 3061 8843 3049 8841
3039 8845 3027 8855
$$
JP/MB1 follow-up statement
717
WWUS54 KMOB 182232
SVSMOB
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
432 PM CST SAT FEB 18 2012
ALC003-097-182300-
/O.CON.KMOB.SV.W.0015.000000T0000Z-120218T2300Z/
BALDWIN AL-MOBILE AL-
432 PM CST SAT FEB 18 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 500 PM CST
FOR SOUTHERN MOBILE AND SOUTHWESTERN BALDWIN COUNTIES...
AT 431 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER
SIZE HAIL...AND DESTRUCTIVE WINDS IN EXCESS OF 70 MPH. THESE STORMS
WERE LOCATED ALONG A LINE EXTENDING FROM I10 NEAR THE BATTLESHIP 8
MILES SOUTHEAST OF THEODORE TO 7 MILES SOUTHWEST OF BAYOU LA
BATRE...MOVING EAST AT 45 MPH.
SEVERE THUNDERSTORMS WILL BE NEAR...
VOLANTA...SEACLIFF...MAGNOLIA BEACH AND BELFOREST BY 440 PM CST...
BARNWELL...ELLISVILLE AND FORT GAINES BY 445 PM CST...
RIVER PARK...TURKEY BRANCH AND SILVERHILL BY 450 PM CST...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD
TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 500 PM CST SATURDAY AFTERNOON
FOR SOUTHWESTERN ALABAMA AND NORTHWEST FLORIDA AND SOUTHEAST
MISSISSIPPI.
&&
LAT...LON 3022 8831 3023 8832 3026 8818 3036 8820
3032 8826 3037 8826 3038 8839 3048 8841
3069 8809 3068 8769 3024 8766 3022 8803
3028 8777 3041 8792 3062 8792 3068 8801
3026 8818 3026 8817 3029 8813 3025 8807
TIME...MOT...LOC 2231Z 270DEG 39KT 3067 8796 3051 8801
3040 8810 3032 8828
$$
JP/MBThe office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 18, 3:38 AM CST | Wind Advisory | MOB | 38 hr | |
| Feb 18, 1:56 PM CST | Severe Thunderstorm Warning | MOB | Baldwin, Mobile | 49 min |
| Feb 18, 2:28 PM CST | Flash Flood Warning | MOB | Mobile, Washington | 32 days |
| Feb 18, 3:13 PM CST | Severe Thunderstorm Warning | MOB | Baldwin, Conecuh, Escambia, Monroe | 47 min |
| Feb 18, 3:28 PM CST | Gale Warning | MOB | 21 hr | |
| Feb 18, 3:37 PM CST | Flash Flood Warning | MOB | Baldwin, Clarke, Conecuh, Escambia, Mobile, Monroe and 1 more | 113 min |
| Feb 18, 4:01 PM CST | Severe Thunderstorm Warning | MOB | Conecuh, Covington, Escambia | 44 min |
| Feb 18, 4:07 PM CST | Special Marine Warning | MOB | 83 min | |
| Feb 18, 4:19 PM CST | Flash Flood Warning | MOB | Baldwin, Mobile | 116 min |
| Feb 18, 4:21 PM CST | Tornado Warning | MOB | Mobile | 24 min |
| Feb 18, 4:25 PM CST | Areal Flood Advisory | MOB | Choctaw, Clarke, Monroe, Washington, Wilcox | 2 hr |
| Feb 18, 4:30 PM CST | Flash Flood Warning | MOB | Mobile, Washington | 60 min |
| Feb 18, 4:38 PM CST | Severe Thunderstorm Warning | MOB | Conecuh, Covington, Crenshaw, Escambia | 52 min |
| Feb 18, 4:52 PM CST | Flash Flood Warning | MOB | Baldwin | 113 min |
| Feb 18, 4:59 PM CST | Severe Thunderstorm Warning | MOB | Baldwin | 76 min |
| Feb 18, 5:13 PM CST | Flash Flood Warning | MOB | Baldwin, Butler, Conecuh, Covington, Crenshaw, Escambia | 2 hr |
| Feb 18, 5:17 PM CST | Tornado Warning | MOB | Baldwin | 28 min |
| Feb 18, 5:27 PM CST | Special Marine Warning | MOB | 93 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.