Alert archive / Alabama / Tornado Warnings in 2017

Tornado Warning 26, NWS Birmingham, AL

April 27, 2017Bullock County, Alabama

NWS Birmingham, AL issued this tornado warning at Apr 27, 2017, 11:40 AM CDT for Bullock County, Alabama. It was in force for 36 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 27, 2017, 11:40 AM CDT (16:40 UTC)
Expired: Apr 27, 2017, 12:16 PM CDT
In force: 36 min
Issued by: NWS Birmingham, AL
Area: Storm-based polygon
Tornado: Observed
Hail: 1.0 in

County Bullock County, AL

The radar

The Ft Rucker radar (KEOX), 61 km from the middle of the area, began a volume at 16:42 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

Birmingham, AL (KBMX), launched 12:00Z, 4.7 hours before the alert went out and 173 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: 277 J/kg
Mixed-layer CIN: -112 J/kg
Mixed-layer LCL: 741 m above ground
0-6 km bulk shear: 56 kt
0-1 km storm-relative helicity: 102 m²/s²
0-3 km storm-relative helicity: 186 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 1.5

Open this sounding in Storm Lab

The text

As transmitted.

948 
WFUS54 KBMX 271640
TORBMX
ALC011-271730-
/O.NEW.KBMX.TO.W.0026.170427T1640Z-170427T1730Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Birmingham AL
1140 AM CDT THU APR 27 2017

The National Weather Service in Birmingham has issued a

* Tornado Warning for...
  Southeastern Bullock County in southeastern Alabama...

* Until 1230 PM CDT

* At 1140 AM CDT, a confirmed tornado was located near Linwood, or 12
  miles northeast of Troy, moving northeast at 35 mph.

  HAZARD...Damaging tornado and quarter size hail. 

  SOURCE...Emergency Management confirmed tornado. 

  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...
  Midway, Pickett, Perote and Three Notch. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Heavy rainfall may hide this tornado. Do not wait to see or hear the
tornado. TAKE COVER NOW!

&&

LAT...LON 3195 8579 3218 8556 3202 8543 3201 8545
      3202 8547 3201 8547 3201 8551 3200 8551
      3199 8554 3200 8559 3195 8562 3188 8579
TIME...MOT...LOC 1640Z 239DEG 30KT 3190 8580 

TORNADO...OBSERVED
HAIL...1.00IN

$$

61

3 follow-up statements

807 
WWUS54 KBMX 271647
SVSBMX

Severe Weather Statement
National Weather Service Birmingham AL
1147 AM CDT THU APR 27 2017

ALC011-271730-
/O.CON.KBMX.TO.W.0026.000000T0000Z-170427T1730Z/
Bullock AL-
1147 AM CDT THU APR 27 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1230 PM CDT FOR
SOUTHEASTERN BULLOCK COUNTY...
    
At 1146 AM CDT, a severe thunderstorm capable of producing a tornado
was located 7 miles east of Linwood, or 14 miles south of Union
Springs, moving northeast at 35 mph.

HAZARD...Tornado and quarter 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...
Midway, Pickett and Perote. 

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 3195 8576 3214 8553 3202 8543 3201 8545
      3202 8547 3201 8547 3201 8551 3200 8551
      3199 8554 3200 8559 3195 8562 3192 8576
TIME...MOT...LOC 1646Z 237DEG 30KT 3194 8575 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

61

226 
WWUS54 KBMX 271653
SVSBMX

Severe Weather Statement
National Weather Service Birmingham AL
1153 AM CDT THU APR 27 2017

ALC011-271730-
/O.CON.KBMX.TO.W.0026.000000T0000Z-170427T1730Z/
Bullock AL-
1153 AM CDT THU APR 27 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1230 PM CDT FOR
SOUTHEASTERN BULLOCK COUNTY...
    
At 1153 AM CDT, a severe thunderstorm capable of producing a tornado
was located near Pickett, or 12 miles south of Union Springs, moving
northeast at 35 mph.

HAZARD...Tornado and quarter 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...
Midway, Pickett and Perote. 

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 3197 8571 3213 8552 3202 8543 3201 8545
      3202 8547 3201 8547 3201 8551 3200 8551
      3199 8554 3200 8559 3197 8561 3194 8570
TIME...MOT...LOC 1653Z 239DEG 30KT 3197 8569 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

61

338 
WWUS54 KBMX 271716
SVSBMX

Severe Weather Statement
National Weather Service Birmingham AL
1216 PM CDT THU APR 27 2017

ALC011-271724-
/O.CAN.KBMX.TO.W.0026.000000T0000Z-170427T1730Z/
Bullock AL-
1216 PM CDT THU APR 27 2017

...THE TORNADO WARNING FOR EASTERN BULLOCK COUNTY IS
CANCELLED...
                
The storm which prompted this warning has weakened below severe 
limits, and no longer appears capable of producing a tornado.
Therefore this warning has been cancelled.

However, a Tornado Warning still remains in effect for southern 
Bullock County from a different storm.

LAT...LON 3197 8571 3213 8552 3202 8543 3201 8545
      3202 8547 3201 8547 3201 8551 3200 8551
      3199 8554 3200 8559 3197 8561 3194 8570
TIME...MOT...LOC 1712Z 239DEG 30KT 3206 8551 

$$

61

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 27, 12:06 AM CDT	Severe Thunderstorm Warning	BMX	Sumter	39 min
Apr 27, 12:07 AM CDT	Tornado Warning	BMX	Pickens	25 min
Apr 27, 12:33 AM CDT	Severe Thunderstorm Warning	BMX	Greene	42 min
Apr 27, 12:56 AM CDT	Severe Thunderstorm Warning	BMX	Sumter	49 min
Apr 27, 6:13 AM CDT	Tornado Warning	BMX	Lowndes	13 min
Apr 27, 8:41 AM CDT	Special Weather Statement	BMX	Tallapoosa	34 min
Apr 27, 9:09 AM CDT	Tornado Warning	BMX	Bullock, Montgomery	20 min
Apr 27, 11:21 AM CDT	Tornado Warning	BMX	Pike	24 min
Apr 27, 11:31 AM CDT	Tornado Warning	BMX	Lee, Russell	14 min
Apr 27, 11:58 AM CDT	Tornado Warning	BMX	Russell	27 min
Apr 27, 12:04 PM CDT	Tornado Warning	BMX	Barbour, Bullock	41 min

Nearby

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