Alert archive / Alabama / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 243, NWS Tallahassee, FL

December 11, 2021Dale County, Henry County, Alabama

NWS Tallahassee, FL issued this severe thunderstorm warning at Dec 11, 2021, 3:29 PM CST for Dale County, Henry County, Alabama. It was in force for 46 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: Dec 11, 2021, 3:29 PM CST (21:29 UTC)
Expired: Dec 11, 2021, 4:15 PM CST
In force: 46 min
Issued by: NWS Tallahassee, FL
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Dale County, AL, Henry County, AL

The radar

The Ft Rucker radar (KEOX), 3 km from the middle of the area, began a volume at 21:30 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

Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 9.5 hours before the alert went out and 159 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: 50 J/kg
Mixed-layer CIN: -26 J/kg
Mixed-layer LCL: 496 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: 126 m²/s²
0-3 km storm-relative helicity: 109 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

815 
WUUS52 KTAE 112129
SVRTAE
ALC045-067-112215-
/O.NEW.KTAE.SV.W.0243.211211T2129Z-211211T2215Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Tallahassee FL
329 PM CST Sat Dec 11 2021

The National Weather Service in Tallahassee has issued a

* Severe Thunderstorm Warning for...
  East central Dale County in southeastern Alabama...
  Southwestern Henry County in southeastern Alabama...

* Until 415 PM CST.

* At 329 PM CST, a severe thunderstorm was located over Ozark, moving
  east at 45 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...Expect damage to roofs, siding, and trees.

* Locations impacted include...
  Abbeville, Ozark, Headland, Fort Rucker, Newton, Newville, Bells
  Crossroads, Hunt Field, Tumbleton, Kirkland Crossroads, Mabson,
  Snells Crossroads, Ewell, Graball, Dancey, Balkum, Echo, Dean
  Church Road, Hardwickburg and Blackwood.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3137 8568 3145 8568 3163 8524 3152 8514
      3138 8517
TIME...MOT...LOC 2129Z 254DEG 39KT 3140 8564 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

21-WD

The office that day

Everything else NWS Tallahassee, FL issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Dec 11, 2:19 PM CST	Special Weather Statement	TAE	Coffee	56 min
Dec 11, 2:51 PM CST	Special Weather Statement	TAE	Geneva	54 min
Dec 11, 3:06 PM CST	Special Weather Statement	TAE	Dale	24 min
Dec 11, 4:15 PM CST	Special Weather Statement	TAE	Henry	45 min
Dec 11, 4:36 PM CST	Tornado Warning	TAE	Geneva	24 min

Nearby

Severe Thunderstorm Warnings in Alabama, 2021 Every severe thunderstorm warning 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.