Alert archive / Alabama / Tornado Warnings in 2011
Tornado Warning 47, NWS Mobile, AL
NWS Mobile, AL issued this tornado warning at Apr 15, 2011, 1:46 PM CDT for Clarke County, Washington County, Alabama. It was in force for 44 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
- Apr 15, 2011, 1:46 PM CDT (18:46 UTC)
- Expired
- Apr 15, 2011, 2:30 PM CDT
- In force
- 44 min
- Issued by
- NWS Mobile, AL
- Area
- Storm-based polygon
Counties Clarke County, AL, Washington County, AL
The radar
The Mobile radar (KMOB), 106 km from the middle of the area, began a volume at 18:47 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 |
|---|---|---|---|
| Apr 15, 2:05 PM CDT | TSTM WND DMG | Jackson, AL | A TREE FELL ON A HOME AT 309 EAST SPRUCE STREET IN JACKSON AL. |
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 |
|---|---|---|---|
| Apr 15, 7:32 AM CDT | Tornado Watch | SPC | 7 hr |
| Apr 15, 11:21 AM CDT | Tornado Watch | SPC | 9 hr |
The nearest sounding before it
Birmingham, AL (KBMX), launched 12:00Z, 6.8 hours before the alert went out and 207 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
- 1553 m above ground
- 0-6 km bulk shear
- 46 kt
- 0-1 km storm-relative helicity
- 282 m²/s²
- 0-3 km storm-relative helicity
- 365 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.5
The text
As transmitted, in the capitals the NWS used until 2016.
585 WFUS54 KMOB 151846 TORMOB ALC025-129-151930- /O.NEW.KMOB.TO.W.0047.110415T1846Z-110415T1930Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE MOBILE AL 146 PM CDT FRI APR 15 2011 THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A * TORNADO WARNING FOR... CLARKE COUNTY IN SOUTHWEST ALABAMA... THIS INCLUDES THE CITIES OF...JACKSON...GROVE HILL... EASTERN WASHINGTON COUNTY IN SOUTHWEST ALABAMA... * UNTIL 230 PM CDT * AT 142 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 11 MILES SOUTHEAST OF CHATOM...OR 7 MILES SOUTHWEST OF CORTELUOU...MOVING NORTHEAST AT 45 MPH. * THE TORNADO WILL BE NEAR... CORTELUOU AROUND 150 PM CDT... SAINT STEPHRNS AROUND 155 PM CDT... JACKSON AND CHOCTAW BLUFF AROUND 205 PM CDT... MANILLA AND MANILA AROUND 215 PM CDT... ALLEN AND GROVE HILL AROUND 220 PM CDT... PRECAUTIONARY/PREPAREDNESS ACTIONS... EMERGENCY MANAGEMENT REPORTS DAMAGE ALONG THE PATH OF THIS STORM. PLEASE TAKE SHELTER IMMEDIATELY. THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS. IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS. A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM CDT FRIDAY EVENING FOR SOUTHWESTERN ALABAMA AND SOUTHEAST MISSISSIPPI. && LAT...LON 3187 8788 3147 8758 3126 8809 3148 8820 TIME...MOT...LOC 1845Z 238DEG 37KT 3139 8807 $$
2 follow-up statements
102 WWUS54 KMOB 151909 SVSMOB SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE MOBILE AL 209 PM CDT FRI APR 15 2011 ALC025-129-151930- /O.CON.KMOB.TO.W.0047.000000T0000Z-110415T1930Z/ WASHINGTON AL-CLARKE AL- 209 PM CDT FRI APR 15 2011 ...A TORNADO WARNING REMAINS IN EFFECT UNTIL 230 PM CDT FOR CLARKE AND EASTERN WASHINGTON COUNTIES... AT 206 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS TORNADO WAS NEAR ROCKVILLE...OR ABOUT 7 MILES SOUTHEAST OF JACKSON... MOVING NORTHEAST AT 45 MPH. THE TORNADO WILL BE NEAR... MANILA...MANILLA AND GAINESTOWN AROUND 215 PM CDT... BARLOW BEND...SUGGSVILLE AND ALLEN AROUND 220 PM CDT... THE SAFEST PLACE TO BE DURING A TORNADO IS ON THE LOWEST FLOOR OF A STURDY BUILDING...PREFERABLY IN AN INTERIOR HALLWAY OR A ROOM SUCH AS A CLOSET OR BATHROOM. IF POSSIBLE...GET UNDER A WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. USE BLANKETS OR PILLOWS TO COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS. IF YOU ARE IN MOBILE HOME...EVACUATE IT AND GET ON THE LOWEST FLOOR OF A NEARBY STURDY BUILDING OR IN AN UNDERGROUND STORM SHELTER. IF NO SUBSTANTIAL SHELTER IS AVAILABLE AND A TORNADO IS FAST APPROACHING... SEEK SHELTER IN A CULVERT...OR LIE FLAT IN THE NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS. A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM CDT FRIDAY EVENING FOR SOUTHWESTERN ALABAMA AND SOUTHEAST MISSISSIPPI. LAT...LON 3187 8788 3147 8758 3126 8809 3148 8820 TIME...MOT...LOC 1909Z 238DEG 37KT 3146 8778 $$
404
WWUS54 KMOB 151915
SVSMOB
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
215 PM CDT FRI APR 15 2011
ALC129-151924-
/O.CAN.KMOB.TO.W.0047.000000T0000Z-110415T1930Z/
WASHINGTON AL-
215 PM CDT FRI APR 15 2011
...THE TORNADO WARNING FOR EASTERN WASHINGTON COUNTY IS CANCELLED...
A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM CDT FRIDAY EVENING FOR
SOUTHWESTERN ALABAMA AND SOUTHEAST MISSISSIPPI.
LAT...LON 3147 8758 3143 8784 3148 8791 3150 8790
3153 8793 3154 8796 3157 8801 3187 8788
TIME...MOT...LOC 1914Z 238DEG 37KT 3153 8779
$$
ALC025-151930-
/O.CON.KMOB.TO.W.0047.000000T0000Z-110415T1930Z/
CLARKE AL-
215 PM CDT FRI APR 15 2011
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 230 PM CDT FOR CLARKE
COUNTY...
AT 210 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS
TORNADO WAS NEAR WALKER SPRINGS...OR ABOUT NEAR JACKSON...MOVING
NORTHEAST AT 45 MPH.
THE TORNADO WILL BE NEAR...
WALKER SPRINGS...ALLEN...MANILLA...MANILA AND UNION AROUND 220
PM CDT...SUGGSVILLE AROUND 225 PM CDT...
THE SAFEST PLACE TO BE DURING A TORNADO IS ON THE LOWEST FLOOR OF A
STURDY BUILDING...PREFERABLY IN AN INTERIOR HALLWAY OR A ROOM SUCH AS
A CLOSET OR BATHROOM. IF POSSIBLE...GET UNDER A WORKBENCH OR OTHER
PIECE OF STURDY FURNITURE. USE BLANKETS OR PILLOWS TO COVER YOUR BODY
AND ALWAYS STAY AWAY FROM WINDOWS.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM CDT FRIDAY EVENING FOR
SOUTHWESTERN ALABAMA AND SOUTHEAST MISSISSIPPI.
LAT...LON 3147 8758 3143 8784 3148 8791 3150 8790
3153 8793 3154 8796 3157 8801 3187 8788
TIME...MOT...LOC 1914Z 238DEG 37KT 3153 8779
$$The office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 14, 10:41 PM CDT | Small Craft Advisory | MOB | 44 hr | |
| Apr 15, 10:20 AM CDT | Tornado Warning | MOB | Washington | 40 min |
| Apr 15, 10:50 AM CDT | Tornado Warning | MOB | Clarke, Washington | 40 min |
| Apr 15, 10:56 AM CDT | Tornado Warning | MOB | Choctaw | 49 min |
| Apr 15, 11:09 AM CDT | Tornado Warning | MOB | Washington | 51 min |
| Apr 15, 11:26 AM CDT | Tornado Warning | MOB | Clarke, Monroe | 49 min |
| Apr 15, 11:41 AM CDT | Tornado Warning | MOB | Choctaw | 64 min |
| Apr 15, 11:52 AM CDT | Tornado Warning | MOB | Choctaw, Clarke, Washington | 38 min |
| Apr 15, 12:07 PM CDT | Tornado Warning | MOB | Monroe | 38 min |
| Apr 15, 12:20 PM CDT | Tornado Warning | MOB | Choctaw, Clarke, Washington | 40 min |
| Apr 15, 12:35 PM CDT | Tornado Warning | MOB | Monroe, Wilcox | 24 min |
| Apr 15, 12:44 PM CDT | Tornado Warning | MOB | Washington | 46 min |
| Apr 15, 12:51 PM CDT | Tornado Warning | MOB | Clarke, Wilcox | 33 min |
| Apr 15, 1:09 PM CDT | Tornado Warning | MOB | Washington | 51 min |
| Apr 15, 1:22 PM CDT | Tornado Warning | MOB | Clarke, Washington | 21 min |
| Apr 15, 2:06 PM CDT | Severe Thunderstorm Warning | MOB | Choctaw | 27 min |
| Apr 15, 2:22 PM CDT | Tornado Warning | MOB | Clarke, Monroe, Wilcox | 38 min |
| Apr 15, 2:55 PM CDT | Tornado Warning | MOB | Monroe, Wilcox | 50 min |
| Apr 15, 3:18 PM CDT | Tornado Warning | MOB | Butler, Conecuh, Monroe, Wilcox | 57 min |
| Apr 15, 3:41 PM CDT | Tornado Warning | MOB | Clarke, Washington | 32 min |
| Apr 15, 4:02 PM CDT | Tornado Warning | MOB | Choctaw | 58 min |
| Apr 15, 4:27 PM CDT | Tornado Warning | MOB | Clarke, Monroe | 48 min |
| Apr 15, 4:57 PM CDT | Tornado Warning | MOB | Choctaw | 42 min |
| Apr 15, 5:09 PM CDT | Tornado Warning | MOB | Butler, Conecuh, Monroe, Wilcox | 51 min |
| Apr 15, 5:44 PM CDT | Tornado Warning | MOB | Monroe, Wilcox | 31 min |
| Apr 15, 5:47 PM CDT | Tornado Warning | MOB | Choctaw | 58 min |
| Apr 15, 5:54 PM CDT | Tornado Warning | MOB | Wilcox | 51 min |
| Apr 15, 5:59 PM CDT | Tornado Warning | MOB | Butler | 26 min |
| Apr 15, 6:23 PM CDT | Tornado Warning | MOB | Wilcox | 32 min |
| Apr 15, 6:34 PM CDT | Tornado Warning | MOB | Choctaw | 41 min |
| Apr 15, 6:44 PM CDT | Tornado Warning | MOB | Choctaw, Clarke, Washington | 61 min |
Nearby
Tornado Warnings in Alabama, 2011Every tornado warning in 2011Tornadoes 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.