Alert archive / Alabama / Tornado Warnings in 2011
Tornado Warning 144, NWS Mobile, AL
NWS Mobile, AL issued this tornado warning at Nov 16, 2011, 8:27 AM CST for Choctaw County, Clarke County, Alabama. It was in force for 63 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
- Nov 16, 2011, 8:27 AM CST (14:27 UTC)
- Expired
- Nov 16, 2011, 9:30 AM CST
- In force
- 63 min
- Issued by
- NWS Mobile, AL
- Area
- Storm-based polygon
Counties Choctaw County, AL, Clarke County, AL
The radar
The Mobile radar (KMOB), 135 km from the middle of the area, began a volume at 14:26 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 |
|---|---|---|---|
| Nov 16, 9:00 AM CST | TSTM WND DMG | 4 E Tallahatta Springs, AL | ONE-QUARTER MILE SWATH OF 6 INCH DIAMETER YOUNG PINE TREE TRUCKS SNAPPED OFF ABOUT 5 FEET ABOVE THE GROUND. |
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 |
|---|---|---|---|
| Nov 16, 2:20 AM CST | Tornado Watch | SPC | 8 hr |
The nearest sounding before it
Birmingham, AL (KBMX), launched 12:00Z, 2.5 hours before the alert went out and 179 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
- 990 J/kg
- Mixed-layer CIN
- -4 J/kg
- Mixed-layer LCL
- 497 m above ground
- 0-6 km bulk shear
- 56 kt
- 0-1 km storm-relative helicity
- 133 m²/s²
- 0-3 km storm-relative helicity
- 197 m²/s²
- Significant tornado parameter
- 1.0
- Supercell composite
- 3.6
The text
As transmitted, in the capitals the NWS used until 2016.
844
WFUS54 KMOB 161427
TORMOB
ALC023-025-161530-
/O.NEW.KMOB.TO.W.0144.111116T1427Z-111116T1530Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MOBILE AL
827 AM CST WED NOV 16 2011
THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A
* TORNADO WARNING FOR...
SOUTHEASTERN CHOCTAW COUNTY IN SOUTHWEST ALABAMA...
NORTHERN CLARKE COUNTY IN SOUTHWEST ALABAMA...
* UNTIL 930 AM CST
* AT 822 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 15 MILES NORTH
OF CHATOM...OR 6 MILES WEST OF COFFEEVILLE...MOVING EAST AT 35 MPH.
* LOCATIONS IMPACTED INCLUDE...
THOMASVILLE... COFFEEVILLE...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A TORNADO WATCH REMAINS IN EFFECT UNTIL NOON CST WEDNESDAY FOR
SOUTHWESTERN ALABAMA AND SOUTHEAST MISSISSIPPI.
&&
LAT...LON 3199 8768 3194 8767 3188 8767 3187 8764
3183 8763 3169 8808 3170 8809 3170 8819
3181 8822 3199 8798
TIME...MOT...LOC 1427Z 249DEG 30KT 3176 8811
$$2 follow-up statements
547
WWUS54 KMOB 161504
SVSMOB
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
904 AM CST WED NOV 16 2011
ALC023-025-161530-
/O.CON.KMOB.TO.W.0144.000000T0000Z-111116T1530Z/
CHOCTAW AL-CLARKE AL-
904 AM CST WED NOV 16 2011
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 930 AM CST FOR NORTHERN
CLARKE AND EXTREME SOUTHEASTERN CHOCTAW COUNTIES...
AT 854 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE ROTATION WITHIN THE STORM...INDICATING POSSIBLE TORNADO
DEVELOPMENT. FOUR MINUTES AGO...EMERGENCY MANAGEMENT INDICATED
STORM SPOTTERS WITNESSING VERY HEAVY RAINFALL AND THREATENING SKIES.
AT THIS TIME...THE STORM WAS LOCATED NEAR TALLAHATTA SPRINGS...OR
NEAR THOMASVILLE...MOVING NORTHEAST AT 35 MPH.
ADDITIONAL STORMS ARE DEVELOPING TO THE SOUTHWEST OF THIS STORM AND
HAVE THE POTENTIAL TO DEVELOP TORNADOES AS WELL. PLEASE BE ALERT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A TORNADO WATCH REMAINS IN EFFECT UNTIL NOON CST WEDNESDAY FOR
SOUTHWESTERN ALABAMA AND SOUTHEAST MISSISSIPPI.
&&
LAT...LON 3170 8817 3180 8809 3199 8793 3199 8768
3194 8767 3188 8767 3187 8764 3183 8763
3169 8808 3170 8809
TIME...MOT...LOC 1458Z 248DEG 32KT 3187 8782
$$097
WWUS54 KMOB 161517
SVSMOB
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
917 AM CST WED NOV 16 2011
ALC023-161526-
/O.CAN.KMOB.TO.W.0144.000000T0000Z-111116T1530Z/
CHOCTAW AL-
917 AM CST WED NOV 16 2011
...THE TORNADO WARNING FOR SOUTHEASTERN CHOCTAW COUNTY IS
CANCELLED...
A TORNADO WATCH REMAINS IN EFFECT UNTIL NOON CST WEDNESDAY FOR
SOUTHWESTERN ALABAMA AND SOUTHEAST MISSISSIPPI. A TORNADO WATCH ALSO
REMAINS IN EFFECT UNTIL NOON CST WEDNESDAY FOR SOUTHEAST MISSISSIPPI.
LAT...LON 3178 8794 3183 8796 3188 8789 3199 8776
3199 8768 3194 8767 3188 8767 3187 8764
3183 8763 3174 8793
TIME...MOT...LOC 1516Z 242DEG 34KT 3196 8765
$$
ALC025-161530-
/O.CON.KMOB.TO.W.0144.000000T0000Z-111116T1530Z/
CLARKE AL-
917 AM CST WED NOV 16 2011
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 930 AM CST FOR NORTH
CENTRAL CLARKE COUNTY...
AT 912 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE ROTATION WITHIN THE STORM...INDICATING A POSSIBLE TORNADO.
THIS STORM WAS LOCATED NEAR FINLEY CROSSING...OR 6 MILES EAST OF
THOMASVILLE...MOVING NORTHEAST AT 35 MPH.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A TORNADO WATCH REMAINS IN EFFECT UNTIL NOON CST WEDNESDAY FOR
SOUTHWESTERN ALABAMA AND SOUTHEAST MISSISSIPPI.
&&
LAT...LON 3178 8794 3183 8796 3188 8789 3199 8776
3199 8768 3194 8767 3188 8767 3187 8764
3183 8763 3174 8793
TIME...MOT...LOC 1516Z 242DEG 34KT 3196 8765
$$The office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 16, 6:37 AM CST | Tornado Warning | MOB | Choctaw | 34 min |
| Nov 16, 7:35 AM CST | Tornado Warning | MOB | Washington | 40 min |
| Nov 16, 9:13 AM CST | Tornado Warning | MOB | Clarke, Monroe, Washington | 47 min |
| Nov 16, 9:29 AM CST | Tornado Warning | MOB | Clarke, Monroe, Wilcox | 37 min |
| Nov 16, 9:51 AM CST | Special Marine Warning | MOB | 114 min | |
| Nov 16, 10:26 AM CST | Special Marine Warning | MOB | 2 hr | |
| Nov 16, 10:35 AM CST | Severe Thunderstorm Warning | MOB | Butler, Conecuh, Crenshaw, Monroe, Wilcox | 55 min |
| Nov 16, 10:39 AM CST | Tornado Warning | MOB | Butler, Crenshaw, Monroe, Wilcox | 55 min |
| Nov 16, 10:48 AM CST | Small Craft Advisory | MOB | 46 hr | |
| Nov 16, 11:45 AM CST | Special Marine Warning | MOB | 2 hr | |
| Nov 16, 1:02 PM CST | Special Marine Warning | MOB | 97 min | |
| Nov 16, 2:33 PM CST | Fire Weather Watch | MOB | Butler, Choctaw, Clarke, Conecuh, Covington, Crenshaw and 4 more | 15 hr |
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.