Alert archive / Alabama / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 12, NWS Tallahassee, FL

February 15, 2021Coffee County, Geneva County, Alabama

NWS Tallahassee, FL issued this severe thunderstorm warning at Feb 15, 2021, 1:34 PM CST for Coffee County, Geneva County, Alabama. It was in force for 41 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: Feb 15, 2021, 1:34 PM CST (19:34 UTC)
Expired: Feb 15, 2021, 2:15 PM CST
In force: 41 min
Issued by: NWS Tallahassee, FL
Area: Storm-based polygon
Tornado: Possible
Hail: 1.0 in
Wind: 60.0 mph

Counties Coffee County, AL, Geneva County, AL

The radar

The Ft Rucker radar (KEOX), 58 km from the middle of the area, began a volume at 19:35 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
Feb 15, 11:55 AM CST	Tornado Watch	SPC	5 hr

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 7.6 hours before the alert went out and 204 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 468 m above ground
0-6 km bulk shear: 61 kt
0-1 km storm-relative helicity: 252 m²/s²
0-3 km storm-relative helicity: 303 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

The text

As transmitted.

094 
WUUS52 KTAE 151934
SVRTAE
ALC031-061-152015-
/O.NEW.KTAE.SV.W.0012.210215T1934Z-210215T2015Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Tallahassee FL
134 PM CST Mon Feb 15 2021

The National Weather Service in Tallahassee has issued a

* Severe Thunderstorm Warning for...
  Coffee County in southeastern Alabama...
  Western Geneva County in southeastern Alabama...

* Until 215 PM CST.

* At 134 PM CST, severe thunderstorms were located along a line
  extending from near Opp to 11 miles southeast of Florala, moving
  northeast at 80 mph.

  HAZARD...60 mph wind gusts and quarter size hail.

  SOURCE...Radar indicated.

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees.

* Locations impacted include...
  Elba, Geneva, Enterprise, Fort Rucker, Samson, New Brockton, Lee,
  Kinston, Coffee Springs, Mixons Crossroads, Curtis, Carl Folsom
  A/p, Central City, Logan Field Municipal A/P, Camp Humming Hills,
  Clintonville, Roeton, Camp Alaflo Bsa, Arcus and Enterprise
  Municipal A/P.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 600 PM CST for southeastern
Alabama...and the Panhandle of Florida.

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

&&

LAT...LON 3153 8619 3154 8614 3161 8615 3162 8613
      3162 8579 3099 8579 3100 8619
TIME...MOT...LOC 1934Z 218DEG 70KT 3123 8622 3091 8616 

TORNADO...POSSIBLE
HAIL...1.00IN
WIND...60MPH
 
$$

11-MM

The office that day

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

Issued	Product	Office	Counties	Lasted
Feb 15, 1:39 PM CST	Wind Chill Advisory	TAE	Coffee, Dale, Geneva, Henry, Houston	20 hr
Feb 15, 1:57 PM CST	Severe Thunderstorm Warning	TAE	Coffee, Dale, Geneva, Henry, Houston	63 min
Feb 15, 2:08 PM CST	Severe Thunderstorm Warning	TAE	Coffee, Geneva	17 min
Feb 15, 2:37 PM CST	Severe Thunderstorm Warning	TAE	Dale, Geneva, Henry, Houston	53 min
Feb 15, 3:01 PM CST	Severe Thunderstorm Warning	TAE	Henry, Houston	59 min
Feb 15, 3:03 PM CST	Severe Thunderstorm Warning	TAE	Houston	57 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.