Alert archive / Alabama / Tornado Warnings in 2017

Tornado Warning 66, NWS Tallahassee, FL

May 23, 2017Coffee County, Geneva County, Alabama

NWS Tallahassee, FL issued this tornado warning at May 23, 2017, 8:34 AM CDT for Coffee County, Geneva County, Alabama. It was in force for 22 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
May 23, 2017, 8:34 AM CDT (13:34 UTC)
Expired
May 23, 2017, 8:56 AM CDT
In force
22 min
Issued by
NWS Tallahassee, FL
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.0 in

Counties Coffee County, AL, Geneva County, AL

The radar

The Ft Rucker radar (KEOX), 51 km from the middle of the area, began a volume at 13:39 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

Eglin AFB/Valpar, FL (KVPS), launched 12:00Z, 1.6 hours before the alert went out and 109 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, Eglin AFB/Valpar, FL at 12:00Z on 2017-05-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1379 joules per kilogram.LCLEL10008507005003002001001 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, Eglin AFB/Valpar, FL at 12:00Z on 2017-05-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 152 square meters per square second.1939587897Sfc1 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
1379 J/kg
Mixed-layer CIN
-6 J/kg
Mixed-layer LCL
637 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
152 m²/s²
0-3 km storm-relative helicity
233 m²/s²
Significant tornado parameter
0.7
Supercell composite
5.0

Open this sounding in Storm Lab

The text

As transmitted.

782 
WFUS52 KTAE 231334
TORTAE
ALC031-061-231415-
/O.NEW.KTAE.TO.W.0066.170523T1334Z-170523T1415Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Tallahassee FL
834 AM CDT TUE MAY 23 2017

The National Weather Service in Tallahassee has issued a

* Tornado Warning for...
  Southern Coffee County in southeastern Alabama...
  Northwestern Geneva County in southeastern Alabama...

* Until 915 AM CDT
    
* At 834 AM CDT, a severe thunderstorm capable of producing a tornado
  was located 7 miles south of Opp, moving northeast at 40 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. 

* This dangerous storm will be near...
  Elba around 905 AM CDT. 
  New Brockton around 915 AM CDT. 

Other locations impacted by this tornadic thunderstorm include
Alberton, Richburg, Perry Store, Carl Folsom A/p, County Line,
Lucile, Rhoades, Ino, Turner Crossroads and Central City.

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.

&&

LAT...LON 3152 8595 3131 8579 3127 8579 3115 8619
      3133 8620
TIME...MOT...LOC 1334Z 238DEG 35KT 3118 8629 

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

$$

15-HARRIGAN
2 follow-up statements
717 
WWUS52 KTAE 231350
SVSTAE

Severe Weather Statement
National Weather Service Tallahassee FL
850 AM CDT TUE MAY 23 2017

ALC061-231400-
/O.CAN.KTAE.TO.W.0066.000000T0000Z-170523T1415Z/
Geneva AL-
850 AM CDT TUE MAY 23 2017

...THE TORNADO WARNING FOR NORTHWESTERN GENEVA COUNTY IS CANCELLED...
    
The tornadic thunderstorm which prompted the warning has moved out 
of the warned area. Therefore, the warning has been cancelled.

LAT...LON 3131 8579 3120 8619 3125 8620 3129 8620
      3150 8593
TIME...MOT...LOC 1350Z 238DEG 33KT 3125 8616 

$$

ALC031-231415-
/O.CON.KTAE.TO.W.0066.000000T0000Z-170523T1415Z/
Coffee AL-
850 AM CDT TUE MAY 23 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 915 AM CDT FOR SOUTHERN
COFFEE COUNTY...
    
At 850 AM CDT, a severe thunderstorm capable of producing a tornado
was located near Opp, moving northeast at 40 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. 

This dangerous storm will be near...
  Elba around 910 AM CDT. 
  New Brockton around 915 AM CDT. 

Other locations impacted by this tornadic thunderstorm include
Alberton, Richburg, Mixons Crossroads, Perry Store, County Line,
Estothel, Rhoades, Ino, Turner Crossroads and Clintonville.

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.

&&

LAT...LON 3131 8579 3120 8619 3125 8620 3129 8620
      3150 8593
TIME...MOT...LOC 1350Z 238DEG 33KT 3125 8616 

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

$$

15-HARRIGAN
958 
WWUS52 KTAE 231356
SVSTAE

Severe Weather Statement
National Weather Service Tallahassee FL
856 AM CDT TUE MAY 23 2017

ALC031-231406-
/O.CAN.KTAE.TO.W.0066.000000T0000Z-170523T1415Z/
Coffee AL-
856 AM CDT TUE MAY 23 2017

...THE TORNADO WARNING FOR SOUTHERN COFFEE COUNTY 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.

LAT...LON 3131 8579 3120 8619 3125 8620 3129 8620
      3150 8593
TIME...MOT...LOC 1355Z 238DEG 35KT 3128 8610 

$$

15-HARRIGAN

The office that day

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

IssuedProductOfficeCountiesLasted
May 23, 9:27 AM CDTTornado WarningTAEDale, Geneva, Houston18 min
May 23, 10:37 AM CDTSevere Thunderstorm WarningTAEHenry38 min

Nearby

Tornado Warnings in Alabama, 2017Every tornado warning in 2017Tornadoes in 2017

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.