Alert archive / Alabama / Tornado Warnings in 2018

Tornado Warning 10, NWS Birmingham, AL

April 14, 2018Greene County, Pickens County, Alabama

NWS Birmingham, AL issued this tornado warning at Apr 14, 2018, 12:05 PM CDT for Greene County, Pickens County, Alabama. It was in force for 25 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 14, 2018, 12:05 PM CDT (17:05 UTC)
Expired
Apr 14, 2018, 12:30 PM CDT
In force
25 min
Issued by
NWS Birmingham, AL
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.75 in

Counties Greene County, AL, Pickens County, AL

The radar

The Columbus AFB radar (KGWX), 95 km from the middle of the area, began a volume at 17:05 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.

IssuedProductOfficeLasted
Apr 14, 10:36 AM CDTTornado WatchSPC8 hr

The nearest sounding before it

Birmingham, AL (KBMX), launched 12:00Z, 5.1 hours before the alert went out and 121 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, Birmingham, AL at 12:00Z on 2018-04-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 224 joules per kilogram.LCLLFCEL10008507005003002001001 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, Birmingham, AL at 12:00Z on 2018-04-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 275 square meters per square second.193958Sfc1 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
224 J/kg
Mixed-layer CIN
-7 J/kg
Mixed-layer LCL
560 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
275 m²/s²
0-3 km storm-relative helicity
324 m²/s²
Significant tornado parameter
0.3
Supercell composite
3.7

Open this sounding in Storm Lab

The text

As transmitted.

209 
WFUS54 KBMX 141705
TORBMX
ALC063-107-141730-
/O.NEW.KBMX.TO.W.0010.180414T1705Z-180414T1730Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Birmingham AL
1205 PM CDT SAT APR 14 2018

The National Weather Service in Birmingham has issued a

* Tornado Warning for...
  Eastern Pickens County in west central Alabama...
  Northwestern Greene County in west central Alabama...

* Until 1230 PM CDT
    
* At 1204 PM CDT, a severe thunderstorm capable of producing a
  tornado was located near West Greene, or 9 miles south of
  Aliceville, moving northeast at 50 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. 

* Locations impacted include...
  Gordo, Reform, Mantua, Jena, West Greene, Benevola, Johnston Lake,
  Dillburg, North Pickens Airport, Kirk, Pleasant Ridge, Pioneer and
  Lewiston.

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 3296 8817 3297 8816 3300 8818 3343 8801
      3334 8784 3312 8784 3290 8808 3296 8819
TIME...MOT...LOC 1704Z 205DEG 42KT 3299 8809 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

17/KLAWS
1 follow-up statement
174 
WWUS54 KBMX 141717
SVSBMX

Severe Weather Statement
National Weather Service Birmingham AL
1217 PM CDT SAT APR 14 2018

ALC063-107-141730-
/O.CON.KBMX.TO.W.0010.000000T0000Z-180414T1730Z/
Pickens AL-Greene AL-
1217 PM CDT SAT APR 14 2018

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1230 PM CDT FOR
SOUTHEASTERN PICKENS AND NORTH CENTRAL GREENE COUNTIES...
    
At 1217 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Benevola, or 8 miles southeast of Aliceville, moving
northeast at 35 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. 

Locations impacted include...
Gordo, Benevola, Johnston Lake, Mantua, Jena, Kirk, Pioneer and
Lewiston.

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 3304 8810 3340 8796 3334 8784 3312 8784
      3297 8802
TIME...MOT...LOC 1717Z 221DEG 29KT 3306 8803 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

17/KLAWS

The office that day

Everything else NWS Birmingham, AL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 14, 6:49 AM CDTSevere Thunderstorm WarningBMXMarion56 min
Apr 14, 7:37 AM CDTSpecial Weather StatementBMXMarion38 min
Apr 14, 10:57 AM CDTSpecial Weather StatementBMXPickens78 min
Apr 14, 11:08 AM CDTSevere Thunderstorm WarningBMXLamar, Pickens56 min
Apr 14, 11:22 AM CDTSevere Thunderstorm WarningBMXSumter43 min
Apr 14, 11:36 AM CDTTornado WarningBMXFayette, Lamar24 min
Apr 14, 11:49 AM CDTAreal Flood AdvisoryBMXLamar, Marion3 hr
Apr 14, 11:53 AM CDTSevere Thunderstorm WarningBMXFayette, Marion52 min
Apr 14, 11:55 AM CDTSevere Thunderstorm WarningBMXGreene, Pickens65 min
Apr 14, 12:23 PM CDTSpecial Weather StatementBMXWinston37 min
Apr 14, 12:24 PM CDTSevere Thunderstorm WarningBMXTuscaloosa81 min
Apr 14, 12:34 PM CDTTornado WarningBMXWalker, Winston20 min
Apr 14, 12:41 PM CDTTornado WarningBMXTuscaloosa13 min
Apr 14, 12:57 PM CDTSpecial Weather StatementBMXWalker63 min
Apr 14, 1:02 PM CDTSpecial Weather StatementBMXHale, Marengo58 min
Apr 14, 1:07 PM CDTTornado WarningBMXHale16 min
Apr 14, 1:39 PM CDTSevere Thunderstorm WarningBMXBibb, Dallas, Hale, Marengo, Perry41 min
Apr 14, 1:45 PM CDTSpecial Weather StatementBMXJefferson60 min
Apr 14, 2:08 PM CDTSpecial Weather StatementBMXBibb, Dallas, Perry67 min
Apr 14, 2:35 PM CDTAreal Flood AdvisoryBMXJefferson, Shelby4 hr
Apr 14, 4:38 PM CDTSpecial Weather StatementBMXEtowah52 min
Apr 14, 5:33 PM CDTFlash Flood WarningBMXDallas, Marengo, Perry4 hr
Apr 14, 6:07 PM CDTSpecial Weather StatementBMXClay, Talladega38 min
Apr 14, 6:36 PM CDTSpecial Weather StatementBMXClay24 min

Nearby

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