Alert archive / Alabama / Tornado Warnings in 2017

Tornado Warning 24, NWS Birmingham, AL

April 27, 2017Pike County, Alabama

NWS Birmingham, AL issued this tornado warning at Apr 27, 2017, 11:21 AM CDT for Pike County, Alabama. It was in force for 24 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: Apr 27, 2017, 11:21 AM CDT (16:21 UTC)
Expired: Apr 27, 2017, 11:45 AM CDT
In force: 24 min
Issued by: NWS Birmingham, AL
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 1.0 in

County Pike County, AL

The radar

The Ft Rucker radar (KEOX), 59 km from the middle of the area, began a volume at 16:23 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
Apr 27, 11:24 AM CDT	TORNADO	2 Ne Troy University, AL	NUMEROUS DAMAGE REPORTS ASSOCIATED WITH PERSISTENT DEBRIS SIGNATURE FROM KMXX. CORRECTED TIME.

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

The nearest sounding before it

Eglin AFB/Valpar, FL (KVPS), launched 12:00Z, 4.4 hours before the alert went out and 167 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: 1887 J/kg
Mixed-layer CIN: 0 J/kg
Mixed-layer LCL: 475 m above ground
0-6 km bulk shear: 40 kt
0-1 km storm-relative helicity: 193 m²/s²
0-3 km storm-relative helicity: 294 m²/s²
Significant tornado parameter: 2.7
Supercell composite: 15.6

Open this sounding in Storm Lab

The text

As transmitted.

515 
WFUS54 KBMX 271621
TORBMX
ALC109-271645-
/O.NEW.KBMX.TO.W.0024.170427T1621Z-170427T1645Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Birmingham AL
1121 AM CDT THU APR 27 2017

The National Weather Service in Birmingham has issued a

* Tornado Warning for...
  Central Pike County in southeastern Alabama...

* Until 1145 AM CDT
    
* At 1121 AM CDT, a severe thunderstorm capable of producing a
  tornado was located near Troy University, or near Troy, moving
  northeast at 30 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...
  Troy, Banks, Linwood, Troy University, Sandfield and Josie. 

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 3183 8600 3197 8584 3197 8579 3188 8579
      3188 8566 3185 8568 3179 8600
TIME...MOT...LOC 1621Z 246DEG 28KT 3184 8593 

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

$$

61

3 follow-up statements

007 
WWUS54 KBMX 271626
SVSBMX

Severe Weather Statement
National Weather Service Birmingham AL
1126 AM CDT THU APR 27 2017

ALC109-271645-
/O.CON.KBMX.TO.W.0024.000000T0000Z-170427T1645Z/
Pike AL-
1126 AM CDT THU APR 27 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1145 AM CDT FOR
NORTHEASTERN PIKE COUNTY...
    
At 1126 AM CDT, a severe thunderstorm capable of producing a tornado
was located near Troy University, or near Troy, moving northeast at
30 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...
Troy, Sandfield and Josie. 

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 3186 8594 3197 8581 3197 8579 3188 8579
      3188 8567 3182 8593
TIME...MOT...LOC 1626Z 245DEG 26KT 3185 8591 

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

$$

61

686 
WWUS54 KBMX 271634
SVSBMX

Severe Weather Statement
National Weather Service Birmingham AL
1134 AM CDT THU APR 27 2017

ALC109-271645-
/O.CON.KBMX.TO.W.0024.000000T0000Z-170427T1645Z/
Pike AL-
1134 AM CDT THU APR 27 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1145 AM CDT FOR EAST
CENTRAL PIKE COUNTY...
        
At 1134 AM CDT, a confirmed tornado was located near Linwood, or 8
miles northeast of Troy, moving northeast at 35 mph.

HAZARD...Damaging tornado and quarter size hail. 

SOURCE...Radar 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...
Sandfield.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

To repeat, a tornado is on the ground. 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 3188 8588 3196 8579 3188 8579 3188 8575
      3185 8588
TIME...MOT...LOC 1634Z 237DEG 31KT 3188 8585 

TORNADO...OBSERVED
HAIL...1.00IN

$$

61

692 
WWUS54 KBMX 271644
SVSBMX

Severe Weather Statement
National Weather Service Birmingham AL
1144 AM CDT THU APR 27 2017

ALC109-271654-
/O.EXP.KBMX.TO.W.0024.000000T0000Z-170427T1645Z/
Pike AL-
1144 AM CDT THU APR 27 2017

...THE TORNADO WARNING FOR EAST CENTRAL PIKE COUNTY WILL EXPIRE AT
1145 AM CDT...
        
The storm which prompted the warning has moved out of the area.
Therefore the warning will be allowed to expire.

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

LAT...LON 3188 8588 3196 8579 3188 8579 3188 8575
      3185 8588
TIME...MOT...LOC 1644Z 246DEG 28KT 3191 8578 

$$

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, 11:31 AM CDT	Tornado Warning	BMX	Lee, Russell	14 min
Apr 27, 11:40 AM CDT	Tornado Warning Tornado observed	BMX	Bullock	36 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.