Alert archive / Alabama / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 168, NWS Tallahassee, FL

June 20, 2021Coffee County, Dale County, Alabama

NWS Tallahassee, FL issued this severe thunderstorm warning at Jun 20, 2021, 1:43 AM CDT for Coffee County, Dale County, Alabama. It was in force for 32 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 20, 2021, 1:43 AM CDT (06:43 UTC)
Expired: Jun 20, 2021, 2:15 AM CDT
In force: 32 min
Issued by: NWS Tallahassee, FL
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Coffee County, AL, Dale County, AL

The radar

The Ft Rucker radar (KEOX), 32 km from the middle of the area, began a volume at 06:45 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
Jun 19, 7:00 PM CDT	Tornado Watch	SPC	13 hr

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 00:00Z, 6.7 hours before the alert went out and 191 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: 1506 J/kg
Mixed-layer CIN: -6 J/kg
Mixed-layer LCL: 764 m above ground
0-6 km bulk shear: 26 kt
0-1 km storm-relative helicity: 152 m²/s²
0-3 km storm-relative helicity: 223 m²/s²
Significant tornado parameter: 0.9
Supercell composite: 7.3

Open this sounding in Storm Lab

The text

As transmitted.

988 
WUUS52 KTAE 200643
SVRTAE
ALC031-045-200715-
/O.NEW.KTAE.SV.W.0168.210620T0643Z-210620T0715Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Tallahassee FL
143 AM CDT Sun Jun 20 2021

The National Weather Service in Tallahassee has issued a

* Severe Thunderstorm Warning for...
  Northern Dale County in southeastern Alabama...
  Northeastern Coffee County in southeastern Alabama...

* Until 215 AM CDT.

* At 143 AM CDT, a severe thunderstorm was located near Ariton, or 9
  miles north of Fort Rucker, moving east at 45 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Fort Rucker, Ariton, Java, Mixons Crossroads, Greater Salem Church,
  Skipperville, Victoria, Frisco, Roberts Crossroads, Eanon, Camp
  Humming Hills, Rocky Head, Arguta, Wise Mill, Roeton, Clopton,
  Clowers Crossroads, Dillard, Phillips Crossroads and Arcus.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 600 AM CDT for southeastern
Alabama.

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

&&

LAT...LON 3162 8588 3162 8542 3158 8542 3143 8601
      3148 8605
TIME...MOT...LOC 0643Z 252DEG 38KT 3154 8579 

HAIL...<.75IN
WIND...60MPH
 
$$

72-BUNKER

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 19, 7:06 PM CDT	Special Weather Statement	TAE	Dale, Henry	39 min
Jun 19, 7:46 PM CDT	Special Weather Statement	TAE	Henry, Houston	59 min
Jun 19, 8:03 PM CDT	Severe Thunderstorm Warning	TAE	Geneva, Henry, Houston	42 min
Jun 19, 8:42 PM CDT	Special Weather Statement	TAE	Houston	63 min
Jun 19, 11:31 PM CDT	Special Weather Statement	TAE	Coffee	59 min
Jun 20, 12:28 AM CDT	Special Weather Statement	TAE	Coffee	62 min
Jun 20, 1:21 AM CDT	Special Weather Statement	TAE	Coffee	69 min
Jun 20, 2:23 AM CDT	Special Weather Statement	TAE	Dale, Henry	67 min
Jun 20, 3:55 AM CDT	Tornado Warning	TAE	Dale, Geneva, Houston	35 min
Jun 20, 4:08 AM CDT	Tornado Warning	TAE	Henry, Houston	17 min
Jun 20, 4:29 AM CDT	Tornado Warning	TAE	Geneva, Houston	31 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.