Alert archive / Alabama / Tornado Warnings in 2020

Tornado Warning 40, NWS Birmingham, AL

August 28, 2020Winston County, Alabama

NWS Birmingham, AL issued this tornado warning at Aug 28, 2020, 4:36 PM CDT for Winston County, Alabama. It was in force for 39 min. 5 reports 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: Aug 28, 2020, 4:36 PM CDT (21:36 UTC)
Expired: Aug 28, 2020, 5:15 PM CDT
In force: 39 min
Issued by: NWS Birmingham, AL
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

County Winston County, AL

The radar

The Columbus AFB radar (KGWX), 106 km from the middle of the area, began a volume at 21:41 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
Aug 28, 4:36 PM CDT	TORNADO	1 Nne Winston Free Stat, AL	NWS STORM SURVEY DETERMINED A BRIEF EF-1 TORNADO OCCURRED IN THE DOUBLE SPRINGS AREA OF WINSTON COUNTY. MAX EST WINDS WERE 95 MPH WITH MAX WIDTH OF 100 YARDS. SPORADIC TIMBER DAMAGE OCCURRED NORTH OF CTY RD 24 BETWEEN WILDERNESS PKWY AND CTY RD 2. A MOBILE HOM
Aug 28, 4:38 PM CDT	TSTM WND DMG	3 Nnw Winston County Ai, AL	MULTIPLE TREES WERE BLOWN DOWN ALONG HIGHWAY 2 EAST OF HIGHWAY 33. POSSIBLE TORNADO.
Aug 28, 4:50 PM CDT	TSTM WND DMG	1 Se Moreland, AL	A FEW STRUCTURES WERE DAMAGED IN THE MORELAND COMMUNITY SOUTH OF GRAYSON.
Aug 28, 4:54 PM CDT	TSTM WND DMG	1 Nne Winston Free Stat, AL	BUILDING MATERIAL SCATTERED ALL OVER THE PLACE AT WILKINS BUILDERS.
Aug 28, 5:16 PM CDT	TSTM WND DMG	Upshaw, AL	TREES WERE BLOWN DOWN. POSSIBLE TORNADO.

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
Aug 28, 3:46 PM CDT	Tornado Watch	SPC	4 hr

The nearest sounding before it

Birmingham, AL (KBMX), launched 12:00Z, 9.6 hours before the alert went out and 121 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: 981 J/kg
Mixed-layer CIN: -6 J/kg
Mixed-layer LCL: 576 m above ground
0-6 km bulk shear: 23 kt
0-1 km storm-relative helicity: 78 m²/s²
0-3 km storm-relative helicity: 71 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.3

Open this sounding in Storm Lab

The text

As transmitted.

071 
WFUS54 KBMX 282136
TORBMX
ALC133-282215-
/O.NEW.KBMX.TO.W.0040.200828T2136Z-200828T2215Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Birmingham AL
436 PM CDT Fri Aug 28 2020

The National Weather Service in Birmingham has issued a

* Tornado Warning for...
  Northeastern Winston County in northwestern Alabama...

* Until 515 PM CDT.
    
* At 436 PM CDT, a severe thunderstorm capable of producing a tornado
  was located over Winston Free State Barn, or 12 miles northwest of
  Arley, moving east at 30 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...
  Double Springs, Addison, Houston Recreational Area, Sardis,
  Nesmith, Helicon, Moreland, Winston Free State Barn, Inmanfield,
  Smith Lake, Houston, Addison Town Hall, Upshaw, Winston County
  Airport, Cane Creek, Bull Branch, Mill Creek and Addison Municipal
  Airport.

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 3412 8711 3413 8744 3424 8747 3430 8722
      3430 8711
TIME...MOT...LOC 2136Z 262DEG 26KT 3418 8739 

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

$$

40/Sizemore

2 follow-up statements

404 
WWUS54 KBMX 282146
SVSBMX

Severe Weather Statement
National Weather Service Birmingham AL
446 PM CDT Fri Aug 28 2020

ALC133-282215-
/O.CON.KBMX.TO.W.0040.000000T0000Z-200828T2215Z/
Winston AL-
446 PM CDT Fri Aug 28 2020

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 515 PM CDT FOR
NORTHEASTERN WINSTON COUNTY...
    
At 445 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Moreland, or 9 miles northwest of Arley, moving east
at 25 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...
Addison, Sardis, Nesmith, Moreland, Inmanfield, Smith Lake, Houston,
Addison Town Hall, Upshaw, Winston County Airport, Cane Creek, Bull
Branch, Mill Creek and Addison Municipal Airport.

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 3414 8737 3424 8740 3429 8724 3430 8722
      3430 8711 3413 8711
TIME...MOT...LOC 2145Z 261DEG 22KT 3420 8732 

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

$$

40/Sizemore

594 
WWUS54 KBMX 282155
SVSBMX

Severe Weather Statement
National Weather Service Birmingham AL
455 PM CDT Fri Aug 28 2020

ALC133-282215-
/O.CON.KBMX.TO.W.0040.000000T0000Z-200828T2215Z/
Winston AL-
455 PM CDT Fri Aug 28 2020

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 515 PM CDT FOR
NORTHEASTERN WINSTON COUNTY...
    
At 455 PM CDT, a severe thunderstorm capable of producing a tornado
was located over Addison, or 8 miles north of Arley, moving east at
30 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...
Addison, Sardis, Moreland, Nesmith, Inmanfield, Addison Town Hall,
Upshaw and Addison Municipal Airport.

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 3417 8730 3426 8733 3430 8719 3430 8711
      3416 8711
TIME...MOT...LOC 2155Z 262DEG 26KT 3421 8723 

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

$$

40/Sizemore

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 28, 7:24 AM CDT	Areal Flood Advisory	BMX	Greene, Hale, Sumter	5 hr
Aug 28, 8:13 AM CDT	Areal Flood Advisory	BMX	Bibb, Greene, Hale, Tuscaloosa	3 hr
Aug 28, 10:21 AM CDT	Flash Flood Watch	BMX	Bibb, Blount, Calhoun, Cherokee, Chilton, Clay and 13 more	49 min
Aug 28, 11:10 AM CDT	Flash Flood Watch	BMX	Bibb, Blount, Calhoun, Cherokee, Chilton, Clay and 13 more	7 hr
Aug 28, 12:37 PM CDT	Special Weather Statement	BMX	Talladega	53 min
Aug 28, 12:39 PM CDT	Special Weather Statement	BMX	Marengo	51 min
Aug 28, 1:15 PM CDT	Special Weather Statement	BMX	Clay, Talladega	45 min
Aug 28, 2:28 PM CDT	Special Weather Statement	BMX	Marion	47 min
Aug 28, 3:26 PM CDT	Special Weather Statement	BMX	Winston	49 min
Aug 28, 3:36 PM CDT	Severe Thunderstorm Warning	BMX	Marion	39 min
Aug 28, 4:09 PM CDT	Special Weather Statement	BMX	Elmore	36 min
Aug 28, 4:15 PM CDT	Special Weather Statement	BMX	Marion, Winston	45 min
Aug 28, 4:32 PM CDT	Severe Thunderstorm Warning	BMX	Fayette, Lamar, Marion	43 min
Aug 28, 5:10 PM CDT	Areal Flood Advisory	BMX	Lamar, Marion, Winston	2 hr
Aug 28, 5:14 PM CDT	Special Weather Statement	BMX	Lee	46 min
Aug 28, 5:15 PM CDT	Severe Thunderstorm Warning	BMX	Winston	15 min
Aug 28, 5:16 PM CDT	Special Weather Statement	BMX	Fayette, Lamar, Winston	44 min
Aug 28, 5:21 PM CDT	Severe Thunderstorm Warning	BMX	Marion, Walker, Winston	54 min
Aug 28, 5:27 PM CDT	Severe Thunderstorm Warning	BMX	Fayette, Lamar, Walker	43 min

Nearby

Tornado Warnings in Alabama, 2020 Every tornado warning in 2020 Tornadoes in 2020

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.