Alert archive / Alabama / Tornado Warnings in 2017

Tornado Warning 47, NWS Birmingham, AL

August 31, 2017Fayette County, Pickens County, Tuscaloosa County, Alabama

NWS Birmingham, AL issued this tornado warning at Aug 31, 2017, 4:23 PM CDT for Fayette County, Pickens County, Tuscaloosa County, Alabama. It was in force for 52 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 31, 2017, 4:23 PM CDT (21:23 UTC)
Expired: Aug 31, 2017, 5:15 PM CDT
In force: 52 min
Issued by: NWS Birmingham, AL
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

Counties Fayette County, AL, Pickens County, AL, Tuscaloosa County, AL

The radar

The Columbus AFB radar (KGWX), 64 km from the middle of the area, began a volume at 21:21 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 31, 11:13 AM CDT	Tornado Watch	SPC	11 hr

The nearest sounding before it

Birmingham, AL (KBMX), launched 12:00Z, 9.4 hours before the alert went out and 101 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 724 J/kg
Mixed-layer CIN: -9 J/kg
Mixed-layer LCL: 569 m above ground
0-6 km bulk shear: 33 kt
0-1 km storm-relative helicity: 198 m²/s²
0-3 km storm-relative helicity: 229 m²/s²
Significant tornado parameter: 0.5
Supercell composite: 4.5

Open this sounding in Storm Lab

The text

As transmitted.

680 
WFUS54 KBMX 312123
TORBMX
ALC057-107-125-312215-
/O.NEW.KBMX.TO.W.0047.170831T2123Z-170831T2215Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Birmingham AL
423 PM CDT THU AUG 31 2017

The National Weather Service in Birmingham has issued a

* Tornado Warning for...
  Northwestern Tuscaloosa County in west central Alabama...
  Northeastern Pickens County in west central Alabama...
  Central Fayette County in west central Alabama...

* Until 515 PM CDT
    
* At 422 PM CDT, a severe thunderstorm capable of producing a tornado
  was located near Gordo, moving northeast at 45 mph.

  HAZARD...Tornado. 

  SOURCE...Radar indicated rotation. 

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur.  Tree 
           damage is likely. 

* Locations impacted include...
  Berry, Bankston, Stone Wall, Fowlers Crossroads, Moores Bridge,
  Lubbub, Fayette County Public Lake and New Lexington.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 3387 8764 3387 8753 3370 8753 3333 8783
      3339 8798
TIME...MOT...LOC 2122Z 207DEG 39KT 3341 8787 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

32/Davis

4 follow-up statements

053 
WWUS54 KBMX 312138
SVSBMX

Severe Weather Statement
National Weather Service Birmingham AL
438 PM CDT THU AUG 31 2017

ALC107-125-312148-
/O.CAN.KBMX.TO.W.0047.000000T0000Z-170831T2215Z/
Tuscaloosa AL-Pickens AL-
438 PM CDT THU AUG 31 2017

...THE TORNADO WARNING FOR NORTHWESTERN TUSCALOOSA AND NORTHEASTERN
PICKENS COUNTIES IS CANCELLED...
    
The tornadic thunderstorm which prompted the warning has moved out 
of the warned area. Therefore, the warning has been cancelled.

A tornado watch remains in effect until 800 PM CDT for central and
west central Alabama.

LAT...LON 3387 8764 3387 8753 3373 8757 3352 8776
      3353 8788
TIME...MOT...LOC 2138Z 204DEG 37KT 3356 8780 

$$

ALC057-312215-
/O.CON.KBMX.TO.W.0047.000000T0000Z-170831T2215Z/
Fayette AL-
438 PM CDT THU AUG 31 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 515 PM CDT FOR CENTRAL
FAYETTE COUNTY...
    
At 438 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Ashcraft Corner, or 9 miles south of Fayette, moving
northeast at 45 mph.

HAZARD...Tornado. 

SOURCE...Radar indicated rotation. 

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely. 

Locations impacted include...
Berry, Bankston, Stone Wall, Fayette County Public Lake and Fowlers
Crossroads.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 3387 8764 3387 8753 3373 8757 3352 8776
      3353 8788
TIME...MOT...LOC 2138Z 204DEG 37KT 3356 8780 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

32/Davis

103 
WWUS54 KBMX 312151
SVSBMX

Severe Weather Statement
National Weather Service Birmingham AL
451 PM CDT THU AUG 31 2017

ALC057-312215-
/O.CON.KBMX.TO.W.0047.000000T0000Z-170831T2215Z/
Fayette AL-
451 PM CDT THU AUG 31 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 515 PM CDT FOR CENTRAL
FAYETTE COUNTY...
    
At 451 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Bankston, or near Fayette, moving northeast at 45
mph.

HAZARD...Tornado. 

SOURCE...Radar indicated rotation. 

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely. 

Locations impacted include...
Bankston, Fayette County Public Lake and Fowlers Crossroads. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 3387 8764 3387 8753 3375 8759 3361 8771
      3364 8780
TIME...MOT...LOC 2151Z 207DEG 39KT 3369 8772 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

32/Davis

755 
WWUS54 KBMX 312202
SVSBMX

Severe Weather Statement
National Weather Service Birmingham AL
502 PM CDT THU AUG 31 2017

ALC057-312215-
/O.CON.KBMX.TO.W.0047.000000T0000Z-170831T2215Z/
Fayette AL-
502 PM CDT THU AUG 31 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 515 PM CDT FOR NORTH
CENTRAL FAYETTE COUNTY...
    
At 502 PM CDT, a severe thunderstorm capable of producing a tornado
was located 8 miles south of Eldridge, or 9 miles southwest of Carbon
Hill, moving northeast at 45 mph.

HAZARD...Tornado. 

SOURCE...Radar indicated rotation. 

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely. 

Locations impacted include...
Fowlers Crossroads.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 3387 8764 3387 8757 3379 8761 3373 8766
      3375 8772
TIME...MOT...LOC 2202Z 207DEG 39KT 3380 8765 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

32/Davis

765 
WWUS54 KBMX 312213
SVSBMX

Severe Weather Statement
National Weather Service Birmingham AL
513 PM CDT THU AUG 31 2017

ALC057-312223-
/O.EXP.KBMX.TO.W.0047.000000T0000Z-170831T2215Z/
Fayette AL-
513 PM CDT THU AUG 31 2017

...THE TORNADO WARNING FOR NORTH CENTRAL FAYETTE COUNTY WILL EXPIRE
AT 515 PM CDT...
        
The storm which prompted the warning has moved out of the area.
Therefore the warning will be allowed to expire.

A tornado watch remains in effect until 800 PM CDT for central and
west central Alabama.

LAT...LON 3387 8764 3387 8757 3379 8761 3373 8766
      3375 8772
TIME...MOT...LOC 2213Z 207DEG 39KT 3389 8759 

$$

32/Davis

The office that day

Everything else NWS Birmingham, AL issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Aug 30, 7:17 PM CDT	Special Weather Statement	BMX	Bullock	58 min
Aug 30, 7:19 PM CDT	Special Weather Statement	BMX	Pike	26 min
Aug 30, 7:50 PM CDT	Special Weather Statement	BMX	Barbour	70 min
Aug 31, 12:01 PM CDT	Special Weather Statement	BMX	Marengo	29 min
Aug 31, 2:49 PM CDT	Wind Advisory	BMX	Autauga, Bibb, Blount, Calhoun, Chambers, Cherokee and 29 more	27 hr
Aug 31, 3:12 PM CDT	Tornado Warning	BMX	Pickens	48 min
Aug 31, 3:38 PM CDT	Tornado Warning	BMX	Fayette, Lamar, Pickens	52 min
Aug 31, 3:42 PM CDT	Tornado Warning	BMX	Hale, Perry	10 min
Aug 31, 4:12 PM CDT	Tornado Warning Tornado observed	BMX	Fayette	30 min
Aug 31, 4:26 PM CDT	Tornado Warning Tornado observedConsiderable damage threat	BMX	Marion, Winston	35 min
Aug 31, 5:30 PM CDT	Tornado Warning	BMX	Winston	23 min
Aug 31, 5:41 PM CDT	Special Weather Statement	BMX	Marengo	34 min
Aug 31, 6:07 PM CDT	Tornado Warning	BMX	Hale	38 min
Aug 31, 6:55 PM CDT	Tornado Warning	BMX	Bibb	65 min

Nearby

Tornado Warnings in Alabama, 2017 Every tornado warning in 2017 Tornadoes in 2017

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.