Alert archive / Alabama / Tornado Warnings in 2018

Tornado Warning 15, NWS Tallahassee, FL

April 22, 2018Henry County, Alabama

NWS Tallahassee, FL issued this tornado warning at Apr 22, 2018, 3:22 PM CDT for Henry County, Alabama. It was in force for 23 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: Apr 22, 2018, 3:22 PM CDT (20:22 UTC)
Expired: Apr 22, 2018, 3:45 PM CDT
In force: 23 min
Issued by: NWS Tallahassee, FL
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.0 in

County Henry County, AL

The radar

The Ft Rucker radar (KEOX), 35 km from the middle of the area, began a volume at 20:26 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
Apr 22, 2:55 PM CDT	Tornado Watch	SPC	8 hr

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 8.4 hours before the alert went out and 170 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: 640 m above ground
0-6 km bulk shear: 29 kt
0-1 km storm-relative helicity: 265 m²/s²
0-3 km storm-relative helicity: 347 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

The text

As transmitted.

159 
WFUS52 KTAE 222022
TORTAE
ALC067-222045-
/O.NEW.KTAE.TO.W.0015.180422T2022Z-180422T2045Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Tallahassee FL
322 PM CDT SUN APR 22 2018

The National Weather Service in Tallahassee has issued a

* Tornado Warning for...
  Northwestern Henry County in southeastern Alabama...

* Until 345 PM CDT.
    
* At 322 PM CDT, a severe thunderstorm capable of producing a tornado
  was located near Richards Crossroads, or near Abbeville, moving
  northeast at 20 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 tornadic thunderstorm will remain over mainly rural areas of
  northwestern Henry County, including the following locations...
  Otho, Scottsboro Crossroads, Double Bridges, Lawrenceville,
  Screamer and Thomas Mill Creek.

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 3169 8512 3161 8531 3167 8537 3171 8535
      3170 8522 3171 8521 3174 8521 3175 8519
      3175 8518
TIME...MOT...LOC 2022Z 222DEG 16KT 3165 8530 

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

$$

30-PULLIN

1 follow-up statement

285 
WWUS52 KTAE 222038
SVSTAE

Severe Weather Statement
National Weather Service Tallahassee FL
338 PM CDT SUN APR 22 2018

ALC067-222048-
/O.EXP.KTAE.TO.W.0015.000000T0000Z-180422T2045Z/
Henry AL-
338 PM CDT SUN APR 22 2018

...THE TORNADO WARNING FOR NORTHWESTERN HENRY COUNTY WILL EXPIRE AT
345 PM CDT...
        
The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire.

A Tornado Watch remains in effect until 900 PM CDT for southeastern
Alabama...and southwestern Georgia.

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

LAT...LON 3169 8512 3161 8531 3167 8537 3171 8535
      3170 8522 3171 8521 3174 8521 3175 8519
      3175 8518
TIME...MOT...LOC 2038Z 222DEG 16KT 3170 8525 

$$

30-PULLIN

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 22, 3:36 PM CDT	Tornado Warning	TAE	Dale, Henry, Houston	24 min
Apr 22, 4:18 PM CDT	Tornado Warning	TAE	Henry	27 min

Nearby

Tornado Warnings in Alabama, 2018 Every tornado warning in 2018 Tornadoes in 2018

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.