Alert archive / Alabama / Tornado Warnings in 2014

Tornado Warning 39, NWS Mobile, AL

November 17, 2014Butler County, Crenshaw County, Alabama

NWS Mobile, AL issued this tornado warning at Nov 17, 2014, 4:21 AM CST for Butler County, Crenshaw County, Alabama. It was in force for 39 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
Nov 17, 2014, 4:21 AM CST (10:21 UTC)
Expired
Nov 17, 2014, 5:00 AM CST
In force
39 min
Issued by
NWS Mobile, AL
Area
Storm-based polygon

Counties Butler County, AL, Crenshaw County, AL

The radar

The Maxwell AFB radar (KMXX), 86 km from the middle of the area, began a volume at 10:19 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
Nov 17, 1:32 AM CSTTornado WatchSPC7 hr

The nearest sounding before it

Birmingham, AL (KBMX), launched 00:00Z, 10.4 hours before the alert went out and 153 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 00:00Z on 2014-11-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Birmingham, AL at 00:00Z on 2014-11-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 342 square meters per square second.19395878Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
452 m above ground
0-6 km bulk shear
56 kt
0-1 km storm-relative helicity
342 m²/s²
0-3 km storm-relative helicity
348 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

400 
WFUS54 KMOB 171021
TORMOB
ALC013-041-171100-
/O.NEW.KMOB.TO.W.0039.141117T1021Z-141117T1100Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MOBILE AL
421 AM CST MON NOV 17 2014

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* TORNADO WARNING FOR...
  EAST CENTRAL BUTLER COUNTY IN SOUTH CENTRAL ALABAMA...
  NORTHERN CRENSHAW COUNTY IN SOUTH CENTRAL ALABAMA...

* UNTIL 500 AM CST

* AT 418 AM CST...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED 9 MILES SOUTHEAST OF GREENVILLE...OR 10 MILES
  WEST OF RUTLEDGE...MOVING NORTHEAST AT 60 MPH.

* LOCATIONS IMPACTED INCLUDE...
  PETREY...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT UNTIL 500 AM CST MONDAY MORNING FOR
SOUTHWEST ALABAMA. A TORNADO WATCH ALSO REMAINS IN EFFECT UNTIL 900
AM CST MONDAY MORNING FOR SOUTHWESTERN ALABAMA AND NORTHWEST FLORIDA.

&&

LAT...LON 3187 8618 3183 8618 3181 8620 3179 8619
      3166 8648 3188 8650 3198 8630 3197 8629
      3197 8619 3196 8618 3190 8617
TIME...MOT...LOC 1022Z 240DEG 51KT 3179 8642

$$
2 follow-up statements
995 
WWUS54 KMOB 171035
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
435 AM CST MON NOV 17 2014

ALC013-171045-
/O.CAN.KMOB.TO.W.0039.000000T0000Z-141117T1100Z/
BUTLER AL-
435 AM CST MON NOV 17 2014

...THE TORNADO WARNING HAS BEEN CANCELLED FOR EAST CENTRAL BUTLER
COUNTY...

AT 432 AM CST...THE STORM THAT PROMPTED THE WARNING FOR EAST CENTRAL 
BUTLER COUNTY HAS MOVED OUT OF THE COUNTY...THUS THE TORNADO WARNING 
HAS BEEN CANCELLED.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 500 AM CST MONDAY MORNING FOR
SOUTHWEST ALABAMA. A TORNADO WATCH ALSO REMAINS IN EFFECT UNTIL 900
AM CST MONDAY MORNING FOR SOUTHWESTERN ALABAMA AND NORTHWEST FLORIDA.

LAT...LON 3196 8618 3190 8617 3187 8618 3183 8618
      3181 8620 3179 8619 3171 8638 3194 8639
      3198 8630 3197 8629 3197 8619
TIME...MOT...LOC 1035Z 254DEG 33KT 3179 8631

$$

ALC041-171100-
/O.CON.KMOB.TO.W.0039.000000T0000Z-141117T1100Z/
CRENSHAW AL-
435 AM CST MON NOV 17 2014

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 500 AM CST FOR NORTHERN
CRENSHAW COUNTY...

AT 432 AM CST...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 
WAS LOCATED 7 MILES NORTHWEST OF LUVERNE...OR 4 MILES NORTHWEST OF
RUTLEDGE...MOVING EAST AT 40 MPH.

LOCATIONS IMPACTED INCLUDE...
  PETREY...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT UNTIL 500 AM CST MONDAY MORNING FOR
SOUTHWEST ALABAMA. A TORNADO WATCH ALSO REMAINS IN EFFECT UNTIL 900
AM CST MONDAY MORNING FOR SOUTHWESTERN ALABAMA AND NORTHWEST FLORIDA.

&&

LAT...LON 3196 8618 3190 8617 3187 8618 3183 8618
      3181 8620 3179 8619 3171 8638 3194 8639
      3198 8630 3197 8629 3197 8619
TIME...MOT...LOC 1035Z 254DEG 33KT 3179 8631

$$
250 
WWUS54 KMOB 171057 RRA
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
457 AM CST MON NOV 17 2014

ALC041-171107-
/O.EXP.KMOB.TO.W.0039.000000T0000Z-141117T1100Z/
CRENSHAW AL-
457 AM CST MON NOV 17 2014

...THE TORNADO WARNING HAS BEEN ALLOWED TO EXPIRE FOR CENTRAL
CRENSHAW COUNTY...

AT 454 AM CST...THE STORM THAT PROMPTED THE WARNING FOR CENTRAL 
CRENSHAW COUNTY HAS MOVED OUT OF THE COUNTY...THUS THE TORNADO 
WARNING WILL BE ALLOWED TO EXPIRE AT 500 AM CST.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 500 AM CST MONDAY MORNING FOR
SOUTHWEST ALABAMA. A TORNADO WATCH ALSO REMAINS IN EFFECT UNTIL 900
AM CST MONDAY MORNING FOR SOUTHWESTERN ALABAMA AND NORTHWEST FLORIDA.

LAT...LON 3196 8618 3190 8617 3187 8618 3183 8618
      3181 8620 3179 8619 3171 8638 3194 8639
      3198 8630 3197 8629 3197 8619
TIME...MOT...LOC 1057Z 254DEG 33KT 3185 8608

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Nov 17, 1:29 AM CSTSevere Thunderstorm WarningMOBClarke, Washington61 min
Nov 17, 1:41 AM CSTTornado WarningMOBClarke, Washington49 min
Nov 17, 2:08 AM CSTTornado WarningMOBClarke37 min
Nov 17, 2:09 AM CSTSevere Thunderstorm WarningMOBBaldwin, Clarke, Conecuh, Escambia, Monroe, Washington66 min
Nov 17, 2:37 AM CSTTornado WarningMOBClarke, Monroe, Wilcox25 min
Nov 17, 3:07 AM CSTTornado WarningMOBConecuh, Monroe53 min
Nov 17, 3:14 AM CSTTornado WarningMOBButler, Conecuh, Monroe, Wilcox14 min
Nov 17, 3:22 AM CSTSpecial Marine WarningMOB83 min
Nov 17, 3:45 AM CSTTornado WarningMOBButler, Conecuh45 min
Nov 17, 4:07 AM CSTSevere Thunderstorm WarningMOBButler, Covington, Crenshaw53 min
Nov 17, 4:24 AM CSTHard Freeze WatchMOBButler, Choctaw, Clarke, Conecuh, Covington, Crenshaw and 4 more26 hr
Nov 17, 4:24 AM CSTWind AdvisoryMOBButler, Choctaw, Clarke, Conecuh, Covington, Crenshaw and 4 more26 hr
Nov 17, 4:41 AM CSTSevere Thunderstorm WarningMOBBaldwin, Conecuh, Escambia49 min
Nov 17, 4:42 AM CSTTornado WarningMOBCrenshaw20 min
Nov 17, 5:09 AM CSTSpecial Marine WarningMOB2 hr
Nov 17, 5:47 AM CSTGale WarningMOB24 hr
Nov 17, 5:47 AM CSTSmall Craft AdvisoryMOB42 hr
Nov 17, 5:47 AM CSTSmall Craft AdvisoryMOB36 hr
Nov 17, 5:51 AM CSTFire Weather WatchMOBButler, Choctaw, Clarke, Conecuh, Covington, Crenshaw and 4 more48 hr
Nov 17, 5:51 AM CSTFire Weather WatchMOBButler, Choctaw, Clarke, Conecuh, Covington, Crenshaw and 4 more25 hr

Nearby

Tornado Warnings in Alabama, 2014Every tornado warning in 2014Tornadoes in 2014

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.