Alert archive / Alabama / Tornado Warnings in 2021

Tornado Warning 78, NWS Birmingham, AL

June 19, 2021Dallas County, Lowndes County, Alabama

NWS Birmingham, AL issued this tornado warning at Jun 19, 2021, 9:23 AM CDT for Dallas County, Lowndes County, Alabama. It was in force for 18 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
Jun 19, 2021, 9:23 AM CDT (14:23 UTC)
Expired
Jun 19, 2021, 9:41 AM CDT
In force
18 min
Issued by
NWS Birmingham, AL
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.0 in

Counties Dallas County, AL, Lowndes County, AL

The radar

The Birmingham radar (KBMX), 96 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.

The nearest sounding before it

Birmingham, AL (KBMX), launched 12:00Z, 2.4 hours before the alert went out and 97 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-pSkew-T log-p diagram, Birmingham, AL at 12:00Z on 2021-06-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 40 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Birmingham, AL at 12:00Z on 2021-06-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 63 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
40 J/kg
Mixed-layer CIN
-57 J/kg
Mixed-layer LCL
738 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
63 m²/s²
0-3 km storm-relative helicity
85 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

776 
WFUS54 KBMX 191423
TORBMX
ALC047-085-191515-
/O.NEW.KBMX.TO.W.0078.210619T1423Z-210619T1515Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Birmingham AL
923 AM CDT Sat Jun 19 2021

The National Weather Service in Birmingham has issued a

* Tornado Warning for...
  Western Lowndes County in south central Alabama...
  Southeastern Dallas County in south central Alabama...

* Until 1015 AM CDT.
    
* At 923 AM CDT, a severe thunderstorm capable of producing a tornado
  was located 8 miles southwest of Gordonville, or 11 miles southwest
  of Mosses, moving north 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...
  White Hall, Benton, Gardner Island, Tyler, Collirene, Farmersville
  and Fostoria.

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.

Heavy rainfall may hide this tornado. Do not wait to see or hear the
tornado. TAKE COVER NOW!

&&

LAT...LON 3205 8686 3205 8691 3242 8692 3246 8687
      3246 8686 3244 8687 3243 8683 3241 8685
      3236 8681 3231 8682 3231 8680 3234 8677
      3239 8678 3240 8672 3236 8671 3203 8678
TIME...MOT...LOC 1423Z 183DEG 40KT 3209 8684 

TORNADO...RADAR INDICATED
HAIL...0.00IN

$$

56
2 follow-up statements
662 
WWUS54 KBMX 191437
SVSBMX

Severe Weather Statement
National Weather Service Birmingham AL
937 AM CDT Sat Jun 19 2021

ALC047-085-191515-
/O.CON.KBMX.TO.W.0078.000000T0000Z-210619T1515Z/
Lowndes AL-Dallas AL-
937 AM CDT Sat Jun 19 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1015 AM CDT FOR
NORTHWESTERN LOWNDES AND SOUTHEASTERN DALLAS COUNTIES...
    
At 937 AM CDT, a severe thunderstorm capable of producing a tornado
was located near Gordonville, or 8 miles west of Mosses, moving north
at 35 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...
White Hall, Benton and Collirene. 

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.

Heavy rainfall may hide this tornado. Do not wait to see or hear the
tornado. TAKE COVER NOW!

&&

LAT...LON 3213 8684 3214 8691 3234 8688 3241 8685
      3236 8681 3231 8682 3231 8680 3234 8677
      3239 8678 3240 8672 3236 8671 3212 8678
TIME...MOT...LOC 1437Z 184DEG 32KT 3218 8683 

TORNADO...RADAR INDICATED
HAIL...0.00IN

$$

56
697 
WWUS54 KBMX 191441
SVSBMX

Severe Weather Statement
National Weather Service Birmingham AL
941 AM CDT Sat Jun 19 2021

ALC047-085-191451-
/O.CAN.KBMX.TO.W.0078.000000T0000Z-210619T1515Z/
Lowndes AL-Dallas AL-
941 AM CDT Sat Jun 19 2021

...THE TORNADO WARNING FOR NORTHWESTERN LOWNDES AND SOUTHEASTERN
DALLAS COUNTIES IS CANCELLED...
                
The storm which prompted the warning has weakened below severe
limits, and no longer appears capable of producing a tornado.
Therefore, the warning has been cancelled.

A Tornado Watch remains in effect until 700 PM CDT for south central
Alabama.

LAT...LON 3213 8684 3214 8691 3234 8688 3241 8685
      3236 8681 3231 8682 3231 8680 3234 8677
      3239 8678 3240 8672 3236 8671 3212 8678
TIME...MOT...LOC 1440Z 183DEG 40KT 3223 8683 

$$

56

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 19, 8:47 AM CDTSpecial Weather StatementBMXDallas, Lowndes58 min
Jun 19, 9:44 AM CDTSpecial Weather StatementBMXAutauga, Perry46 min
Jun 19, 2:27 PM CDTTornado WarningBMXBarbour33 min
Jun 19, 2:52 PM CDTTornado WarningBMXBarbour, Bullock13 min
Jun 19, 6:27 PM CDTAreal Flood AdvisoryBMXGreene, Jefferson, Pickens, Sumter, Tuscaloosa3 hr
Jun 19, 6:39 PM CDTFlash Flood WarningBMXGreene, Tuscaloosa6 hr

Nearby

Tornado Warnings in Alabama, 2021Every tornado warning in 2021Tornadoes 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.