Alert archive / Alabama / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 209, NWS Tallahassee, FL

August 10, 2021Geneva County, Alabama

NWS Tallahassee, FL issued this severe thunderstorm warning at Aug 10, 2021, 6:27 PM CDT for Geneva County, Alabama. It was in force for 48 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: Aug 10, 2021, 6:27 PM CDT (23:27 UTC)
Expired: Aug 10, 2021, 7:15 PM CDT
In force: 48 min
Issued by: NWS Tallahassee, FL
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

County Geneva County, AL

The radar

The Ft Rucker radar (KEOX), 50 km from the middle of the area, began a volume at 23:30 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.

What was reported inside it

Time	Report	Where	Remark
Aug 10, 6:33 PM CDT	TSTM WND DMG	2 Ene Oak Grove, AL	ROOF DAMAGE TO A STRUCTURE AT 882 COUNTY ROAD 34.
Aug 10, 6:40 PM CDT	TSTM WND DMG	Highfalls, AL	TREE AND POWER LINE DOWN NEAR COUNTY ROAD 41 AND COUNTY ROAD 34 INTERSECTION.

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

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 11.5 hours before the alert went out and 164 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: 2209 J/kg
Mixed-layer CIN: -29 J/kg
Mixed-layer LCL: 854 m above ground
0-6 km bulk shear: 6 kt
0-1 km storm-relative helicity: 14 m²/s²
0-3 km storm-relative helicity: 40 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

245 
WUUS52 KTAE 102327
SVRTAE
ALC061-110015-
/O.NEW.KTAE.SV.W.0209.210810T2327Z-210811T0015Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Tallahassee FL
627 PM CDT Tue Aug 10 2021

The National Weather Service in Tallahassee has issued a

* Severe Thunderstorm Warning for...
  Central Geneva County in southeastern Alabama...

* Until 715 PM CDT.

* At 627 PM CDT, a severe thunderstorm was located near Hartford, or
  8 miles northeast of Geneva, moving southwest at 15 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Geneva, Hartford, Slocomb, Coffee Springs, Black, Chancellor,
  Kellys Crossroads, Eunola, Lytle, High Bluff, Highfalls, Dundee,
  Bald Hill, Geneva Municipal A/P, Vaughanville, Hendrix Crossroad,
  Bailey Crossroad, Somerset and Thurston.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

To report severe weather, contact your nearest law enforcement
agency. They will send your report to the National Weather Service
office in Tallahassee.

&&

LAT...LON 3120 8587 3120 8551 3100 8566 3099 8606
TIME...MOT...LOC 2327Z 044DEG 11KT 3109 8575 

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

$$

42-DVD

1 follow-up statement

676 
WWUS52 KTAE 110011
SVSTAE

Severe Weather Statement
National Weather Service Tallahassee FL
711 PM CDT Tue Aug 10 2021

ALC061-110021-
/O.EXP.KTAE.SV.W.0209.000000T0000Z-210811T0015Z/
Geneva AL-
711 PM CDT Tue Aug 10 2021

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL GENEVA COUNTY WILL
EXPIRE AT 715 PM CDT...
        
The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire.

To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Tallahassee.

LAT...LON 3120 8587 3120 8551 3100 8566 3099 8606
TIME...MOT...LOC 0011Z 044DEG 11KT 3100 8585 

$$

42-DVD

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 9, 7:37 PM CDT	Special Weather Statement	TAE	Coffee	23 min
Aug 9, 7:58 PM CDT	Special Weather Statement	TAE	Dale	32 min
Aug 10, 4:05 PM CDT	Special Weather Statement	TAE	Henry	40 min
Aug 10, 5:39 PM CDT	Special Weather Statement	TAE	Coffee	36 min
Aug 10, 6:12 PM CDT	Special Weather Statement	TAE	Geneva	33 min
Aug 10, 6:21 PM CDT	Special Weather Statement	TAE	Houston	24 min
Aug 10, 6:49 PM CDT	Special Weather Statement	TAE	Houston	26 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.