Alert archive / Alabama / Tornado Warnings in 2021

Tornado Warning 14, NWS Mobile, AL

March 18, 2021Crenshaw County, Alabama

NWS Mobile, AL issued this tornado warning at Mar 18, 2021, 4:00 AM CDT for Crenshaw County, Alabama. It was in force for 30 min. 2 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: Mar 18, 2021, 4:00 AM CDT (09:00 UTC)
Expired: Mar 18, 2021, 4:30 AM CDT
In force: 30 min
Issued by: NWS Mobile, AL
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

County Crenshaw County, AL

The radar

The Ft Rucker radar (KEOX), 74 km from the middle of the area, began a volume at 09:00 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
Mar 18, 4:08 AM CDT	TORNADO	1 Ne Brantley, AL	BARN DESTROYED.
Mar 18, 4:08 AM CDT	TORNADO	1 Ne Brantley, AL	EF-1 TORNADO TOUCHED DOWN FROM .52 MILES 1 MILE NORTHEAST OF BRANTLEY ALABAMA. PATH WAS 150 YARDS WIDE AT ITS WIDEST AND DAMAGE OCCURRED ALONG NELVIN WALLACE RD.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Birmingham, AL (KBMX), launched 00:00Z, 9.0 hours before the alert went out and 184 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: 188 J/kg
Mixed-layer CIN: -25 J/kg
Mixed-layer LCL: 669 m above ground
0-6 km bulk shear: 63 kt
0-1 km storm-relative helicity: 336 m²/s²
0-3 km storm-relative helicity: 465 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.6

Open this sounding in Storm Lab

The text

As transmitted.

263 
WFUS54 KMOB 180900
TORMOB
ALC041-180930-
/O.NEW.KMOB.TO.W.0014.210318T0900Z-210318T0930Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Mobile AL
400 AM CDT Thu Mar 18 2021

The National Weather Service in Mobile has issued a

* Tornado Warning for...
  Southeastern Crenshaw County in south central Alabama...

* Until 430 AM CDT.
    
* At 359 AM CDT, a severe thunderstorm capable of producing a tornado
  was located near Brantley, or 11 miles south of Luverne, moving
  northeast at 40 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.

* This dangerous storm will be near...
  Glenwood around 415 AM CDT.

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 3150 8628 3153 8628 3153 8630 3150 8633
      3155 8641 3178 8615 3166 8615 3166 8616
      3165 8616 3163 8618 3162 8618 3162 8615
      3155 8614
TIME...MOT...LOC 0859Z 224DEG 36KT 3155 8630 

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

$$

Black

1 follow-up statement

119 
WWUS54 KMOB 180918
SVSMOB

Severe Weather Statement
National Weather Service Mobile AL
418 AM CDT Thu Mar 18 2021

ALC041-180930-
/O.CON.KMOB.TO.W.0014.000000T0000Z-210318T0930Z/
Crenshaw AL-
418 AM CDT Thu Mar 18 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 430 AM CDT FOR EAST
CENTRAL CRENSHAW COUNTY...
    
At 417 AM CDT, a severe thunderstorm capable of producing a tornado
was located over Glenwood, or over Goshen, moving northeast at 40
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.

This tornadic thunderstorm will remain over mainly rural areas of
east central Crenshaw County.

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 3165 8628 3178 8615 3166 8615 3166 8616
      3165 8616 3163 8618 3162 8618 3159 8619
TIME...MOT...LOC 0917Z 224DEG 36KT 3169 8615 

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

$$

Black

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 17, 7:10 PM CDT	Severe Thunderstorm Warning	MOB	Choctaw, Washington	65 min
Mar 17, 8:07 PM CDT	Special Weather Statement	MOB	Choctaw, Washington	53 min
Mar 17, 8:31 PM CDT	Severe Thunderstorm Warning	MOB	Clarke, Monroe, Washington, Wilcox	44 min
Mar 17, 9:15 PM CDT	Special Weather Statement	MOB	Butler, Monroe, Wilcox	45 min
Mar 17, 9:27 PM CDT	Special Weather Statement	MOB	Clarke, Monroe, Washington	48 min
Mar 17, 9:55 PM CDT	Severe Thunderstorm Warning	MOB	Butler, Crenshaw	50 min
Mar 17, 10:17 PM CDT	Special Weather Statement	MOB	Monroe, Washington	58 min
Mar 17, 10:31 PM CDT	Severe Thunderstorm Warning	MOB	Baldwin, Clarke, Mobile, Monroe, Washington	44 min
Mar 17, 11:12 PM CDT	Special Weather Statement	MOB	Baldwin, Mobile	48 min
Mar 17, 11:28 PM CDT	Special Marine Warning	MOB		92 min
Mar 18, 12:02 AM CDT	Special Weather Statement	MOB	Monroe	43 min
Mar 18, 12:07 AM CDT	Special Weather Statement	MOB	Mobile	23 min
Mar 18, 12:32 AM CDT	Severe Thunderstorm Warning	MOB	Baldwin	28 min
Mar 18, 12:33 AM CDT	Special Marine Warning	MOB		87 min
Mar 18, 12:38 AM CDT	Special Weather Statement	MOB	Butler	37 min
Mar 18, 12:57 AM CDT	Special Marine Warning	MOB		63 min
Mar 18, 1:48 AM CDT	Special Marine Warning	MOB		87 min
Mar 18, 3:16 AM CDT	Special Marine Warning	MOB		89 min
Mar 18, 4:09 AM CDT	Special Marine Warning	MOB		51 min

Nearby

Tornado Warnings in Alabama, 2021 Every tornado warning in 2021 Tornadoes in 2021

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.