Alert archive / Alabama / Tornado Warnings in 2016

Tornado Warning 37, NWS Birmingham, AL

November 30, 2016Walker County, Winston County, Alabama

NWS Birmingham, AL issued this tornado warning at Nov 30, 2016, 2:33 AM CST for Walker County, Winston County, Alabama. It was in force for 27 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Nov 30, 2016, 2:33 AM CST (08:33 UTC)
Expired: Nov 30, 2016, 3:00 AM CST
In force: 27 min
Issued by: NWS Birmingham, AL
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

Counties Walker County, AL, Winston County, AL

The radar

The Birmingham radar (KBMX), 100 km from the middle of the area, began a volume at 08:35 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.

What was reported inside it

Time	Report	Where	Remark
Nov 30, 2:48 AM CST	HAIL 1	1 Ssw Helicon, AL	PUBLIC REPORTED HAIL AT HOME DURING STORM THAT PASSED AROUND 2:48 AM THE MORNING AFTER TORNADO DAMAGED HOME.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Nov 29, 8:50 PM CST	Tornado Watch	SPC	8 hr

The nearest sounding before it

Birmingham, AL (KBMX), launched 00:00Z, 8.6 hours before the alert went out and 99 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: 606 J/kg
Mixed-layer CIN: -32 J/kg
Mixed-layer LCL: 698 m above ground
0-6 km bulk shear: 67 kt
0-1 km storm-relative helicity: 410 m²/s²
0-3 km storm-relative helicity: 477 m²/s²
Significant tornado parameter: 1.7
Supercell composite: 7.4

Open this sounding in Storm Lab

The text

As transmitted.

775 
WFUS54 KBMX 300833
TORBMX
ALC127-133-300900-
/O.NEW.KBMX.TO.W.0037.161130T0833Z-161130T0900Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE BIRMINGHAM AL
233 AM CST WED NOV 30 2016

THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHEASTERN WINSTON COUNTY IN NORTHWESTERN ALABAMA...
  NORTH CENTRAL WALKER COUNTY IN ALABAMA...

* UNTIL 300 AM CST
    
* AT 232 AM CST...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED NEAR CURRY...OR 7 MILES SOUTHWEST OF ARLEY...
  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...
  ARLEY...FALLS CITY...HELICON...SMITH LAKE...CURRY...RACCOON
  BRANCH...BEAR BRANCH...BATTLE BRANCH...LITTLE BEAR BRANCH...COON
  CREEK...MAPLE BRANCH...LITTLE DISMAL CREEK...DEVILS BRANCH...HIDDEN
  COVE CAMPGROUND...PANTHER BRANCH...CUTOFF BRANCH...MILL BRANCH...
  BIG BEAR BRANCH...DUNCAN BRIDGE AND WILSON BEND.

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 3399 8711 3399 8714 3398 8714 3398 8716
      3392 8731 3400 8736 3417 8711
TIME...MOT...LOC 0832Z 234DEG 42KT 3399 8728 

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

$$

17/KLAWS

2 follow-up statements

738 
WWUS54 KBMX 300838
SVSBMX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
238 AM CST WED NOV 30 2016

ALC127-300848-
/O.CAN.KBMX.TO.W.0037.000000T0000Z-161130T0900Z/
WALKER AL-
238 AM CST WED NOV 30 2016

...THE TORNADO WARNING FOR NORTH CENTRAL WALKER COUNTY IS
CANCELLED...
    
THE TORNADIC THUNDERSTORM WHICH PROMPTED THE WARNING HAS MOVED OUT
OF THE WARNED AREA. THEREFORE...THE WARNING HAS BEEN CANCELLED.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 500 AM CST FOR NORTHWESTERN
ALABAMA.

LAT...LON 3399 8711 3399 8715 3400 8717 3400 8719
      3398 8720 3399 8722 3399 8729 3403 8732
      3417 8711
TIME...MOT...LOC 0838Z 234DEG 42KT 3403 8721 

$$

ALC133-300900-
/O.CON.KBMX.TO.W.0037.000000T0000Z-161130T0900Z/
WINSTON AL-
238 AM CST WED NOV 30 2016

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 300 AM CST FOR
SOUTHEASTERN WINSTON COUNTY...
    
AT 238 AM CST...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED OVER FALLS CITY...OR NEAR ARLEY...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...
ARLEY...FALLS CITY...HELICON...SMITH LAKE...BEAR BRANCH...BATTLE
BRANCH...COON CREEK...LITTLE BEAR BRANCH...MAPLE BRANCH...LITTLE
DISMAL CREEK...DEVILS BRANCH...HIDDEN COVE CAMPGROUND...PANTHER
BRANCH...MILL BRANCH...CUTOFF BRANCH...BIG BEAR BRANCH...DUNCAN
BRIDGE...WILSON BEND AND BUTLER BRANCH.

LAT...LON 3399 8711 3399 8715 3400 8717 3400 8719
      3398 8720 3399 8722 3399 8729 3403 8732
      3417 8711
TIME...MOT...LOC 0838Z 234DEG 42KT 3403 8721 

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

$$

87/GRANTHAM

710 
WWUS54 KBMX 300843
SVSBMX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
243 AM CST WED NOV 30 2016

ALC133-300900-
/O.CON.KBMX.TO.W.0037.000000T0000Z-161130T0900Z/
WINSTON AL-
243 AM CST WED NOV 30 2016

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 300 AM CST FOR
SOUTHEASTERN WINSTON COUNTY...
    
AT 243 AM CST...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED OVER FALLS CITY...OR OVER ARLEY...MOVING NORTHEAST AT 45
MPH.

HAZARD...TORNADO AND GOLF BALL SIZE HAIL. 

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...
ARLEY...FALLS CITY...HELICON...SMITH LAKE...BEAR BRANCH...BATTLE
BRANCH...LITTLE BEAR BRANCH...MAPLE BRANCH...LITTLE DISMAL CREEK...
DEVILS BRANCH...HIDDEN COVE CAMPGROUND...PANTHER BRANCH...MILL
BRANCH...CUTOFF BRANCH...BIG BEAR BRANCH...DUNCAN BRIDGE...WILSON
BEND AND BUTLER BRANCH.

LAT...LON 3399 8723 3405 8729 3417 8711 3399 8711
      3399 8715 3400 8717 3400 8719 3398 8720
      3399 8722
TIME...MOT...LOC 0843Z 233DEG 40KT 3405 8718 

TORNADO...RADAR INDICATED
HAIL...1.75IN

$$

87/GRANTHAM

The office that day

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

Issued	Product	Office	Counties	Lasted
Nov 29, 6:35 PM CST	Severe Thunderstorm Warning	BMX	Pickens	55 min
Nov 29, 6:53 PM CST	Severe Thunderstorm Warning	BMX	Lamar, Marion	67 min
Nov 29, 7:16 PM CST	Tornado Warning Tornado observed	BMX	Pickens	17 min
Nov 29, 7:22 PM CST	Tornado Warning Tornado observed	BMX	Fayette, Lamar	53 min
Nov 29, 7:28 PM CST	Tornado Warning	BMX	Marion, Winston	62 min
Nov 29, 7:52 PM CST	Tornado Warning	BMX	Fayette	38 min
Nov 29, 8:09 PM CST	Tornado Warning Tornado observed	BMX	Winston	21 min
Nov 29, 8:19 PM CST	Tornado Warning	BMX	Winston	26 min
Nov 29, 8:24 PM CST	Tornado Warning	BMX	Walker, Winston	44 min
Nov 29, 8:27 PM CST	Tornado Warning	BMX	Lamar, Pickens	46 min
Nov 29, 10:13 PM CST	Tornado Warning	BMX	Winston	17 min
Nov 29, 11:35 PM CST	Tornado Warning	BMX	Fayette, Lamar, Marion	55 min
Nov 30, 12:34 AM CST	Tornado Warning	BMX	Winston	24 min
Nov 30, 1:33 AM CST	Areal Flood Advisory	BMX	Lamar, Marion, Winston	3 hr
Nov 30, 4:25 AM CST	Areal Flood Advisory	BMX	Fayette, Lamar, Marion, Winston	3 hr
Nov 30, 7:35 AM CST	Special Weather Statement	BMX	Hale, Marengo, Tuscaloosa	55 min
Nov 30, 8:26 AM CST	Special Weather Statement	BMX	Bibb, Chilton, Dallas, Jefferson, Marengo, Perry and 2 more	64 min
Nov 30, 9:34 AM CST	Special Weather Statement	BMX	Calhoun, Cherokee, Cleburne, Etowah, St. Clair	56 min
Nov 30, 9:47 AM CST	Special Weather Statement	BMX	Talladega	43 min
Nov 30, 10:13 AM CST	Special Weather Statement	BMX	Coosa	47 min
Nov 30, 10:33 AM CST	Special Weather Statement	BMX	Clay, Cleburne, Randolph	57 min
Nov 30, 10:42 AM CST	Special Weather Statement	BMX	Lowndes	48 min
Nov 30, 11:17 AM CST	Special Weather Statement	BMX	Elmore	43 min
Nov 30, 11:29 AM CST	Special Weather Statement	BMX	Lowndes, Montgomery	46 min
Nov 30, 12:04 PM CST	Special Weather Statement	BMX	Lee, Macon	56 min
Nov 30, 12:30 PM CST	Special Weather Statement	BMX	Bullock, Russell	45 min
Nov 30, 12:40 PM CST	Severe Thunderstorm Warning	BMX	Chambers, Lee	31 min
Nov 30, 12:43 PM CST	Tornado Warning Tornado observed	BMX	Chambers	32 min
Nov 30, 1:12 PM CST	Special Weather Statement	BMX	Barbour, Russell	63 min
Nov 30, 2:33 PM CST	Special Weather Statement	BMX	Barbour	57 min

Nearby

Tornado Warnings in Alabama, 2016 Every tornado warning in 2016 Tornadoes in 2016

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.