Alert archive / Alabama / Tornado Warnings in 2017

Tornado Warning 6, NWS Birmingham, AL

January 21, 2017Elmore County, Alabama

NWS Birmingham, AL issued this tornado warning at Jan 21, 2017, 7:58 AM CST for Elmore County, Alabama. It was in force for 32 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: Jan 21, 2017, 7:58 AM CST (13:58 UTC)
Expired: Jan 21, 2017, 8:30 AM CST
In force: 32 min
Issued by: NWS Birmingham, AL
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

County Elmore County, AL

The radar

The Maxwell AFB radar (KMXX), 27 km from the middle of the area, began a volume at 13:59 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.

Issued	Product	Office	Lasted
Jan 21, 3:56 AM CST	Tornado Watch	SPC	8 hr

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 2.0 hours before the alert went out and 158 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: 388 J/kg
Mixed-layer CIN: -26 J/kg
Mixed-layer LCL: 536 m above ground
0-6 km bulk shear: 52 kt
0-1 km storm-relative helicity: 61 m²/s²
0-3 km storm-relative helicity: 85 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.3

Open this sounding in Storm Lab

The text

As transmitted.

198 
WFUS54 KBMX 211358
TORBMX
ALC051-211430-
/O.NEW.KBMX.TO.W.0006.170121T1358Z-170121T1430Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Birmingham AL
758 AM CST SAT JAN 21 2017

The National Weather Service in Birmingham has issued a

* Tornado Warning for...
  Northwestern Elmore County in east central Alabama...

* Until 830 AM CST
    
* At 758 AM CST, a severe thunderstorm capable of producing a tornado
  was located over Wetumpka, 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...
  Wetumpka, Eclectic, Kowaliga Bridge, Dexter, Ten Cedar Estates,
  Santuck, Western Lake Martin, Blue Ridge, Jordan Lake, Central,
  Claud, Wallsboro and Jordan Dam.

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 3273 8589 3271 8589 3249 8619 3256 8632
      3275 8621 3275 8597 3277 8597 3277 8595
      3275 8595 3275 8588 3274 8588
TIME...MOT...LOC 1358Z 209DEG 32KT 3255 8622 

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

$$

87/GRANTHAM

2 follow-up statements

750 
WWUS54 KBMX 211401
SVSBMX

Severe Weather Statement
National Weather Service Birmingham AL
801 AM CST SAT JAN 21 2017

ALC051-211430-
/O.CON.KBMX.TO.W.0006.000000T0000Z-170121T1430Z/
Elmore AL-
801 AM CST SAT JAN 21 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 830 AM CST FOR
NORTHWESTERN ELMORE COUNTY...
        
At 801 AM CST, a confirmed tornado was located over Wetumpka, moving
northeast at 35 mph.

HAZARD...Damaging tornado. 

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...
Wetumpka, Eclectic, Kowaliga Bridge, Dexter, Ten Cedar Estates,
Santuck, Western Lake Martin, Blue Ridge, Jordan Lake, Central,
Claud, Wallsboro and Jordan Dam.

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 3273 8589 3271 8589 3249 8619 3256 8632
      3275 8621 3275 8597 3277 8597 3277 8595
      3275 8595 3275 8588 3274 8588
TIME...MOT...LOC 1401Z 209DEG 32KT 3257 8620 

TORNADO...OBSERVED
HAIL...<.75IN

$$

87/GRANTHAM

234 
WWUS54 KBMX 211409
SVSBMX

Severe Weather Statement
National Weather Service Birmingham AL
809 AM CST SAT JAN 21 2017

ALC051-211430-
/O.CON.KBMX.TO.W.0006.000000T0000Z-170121T1430Z/
Elmore AL-
809 AM CST SAT JAN 21 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 830 AM CST FOR
NORTHEASTERN ELMORE COUNTY...
    
At 808 AM CST, a severe thunderstorm capable of producing a tornado
was located over Ten Cedar Estates, or 8 miles north of Wetumpka,
moving east at 40 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...
Eclectic, Kowaliga Bridge, Ten Cedar Estates, Santuck, Dexter,
Western Lake Martin, Jordan Lake and Central.

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 3275 8621 3275 8597 3277 8597 3277 8595
      3275 8595 3275 8588 3274 8588 3273 8589
      3271 8589 3256 8610 3254 8613 3264 8627
TIME...MOT...LOC 1408Z 248DEG 35KT 3267 8621 

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

$$

87/GRANTHAM

The office that day

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

Issued	Product	Office	Counties	Lasted
Jan 21, 3:52 AM CST	Special Weather Statement	BMX	Dallas, Lowndes	38 min
Jan 21, 4:19 AM CST	Severe Thunderstorm Warning	BMX	Lowndes	41 min
Jan 21, 5:21 AM CST	Tornado Warning	BMX	Marengo	54 min
Jan 21, 7:02 AM CST	Tornado Warning	BMX	Autauga, Lowndes	43 min
Jan 21, 7:24 AM CST	Severe Thunderstorm Warning	BMX	Lowndes, Montgomery	51 min
Jan 21, 7:37 AM CST	Severe Thunderstorm Warning	BMX	Elmore	38 min
Jan 21, 7:50 AM CST	Areal Flood Advisory	BMX	Autauga, Elmore, Lowndes, Montgomery	3 hr
Jan 21, 7:52 AM CST	Tornado Warning	BMX	Elmore	38 min
Jan 21, 8:07 AM CST	Severe Thunderstorm Warning	BMX	Coosa	23 min
Jan 21, 8:22 AM CST	Tornado Warning	BMX	Coosa, Elmore, Lee, Macon, Tallapoosa	53 min
Jan 21, 8:41 AM CST	Tornado Warning	BMX	Chambers, Lee, Macon	47 min
Jan 21, 8:47 AM CST	Severe Thunderstorm Warning	BMX	Pike	43 min
Jan 21, 8:58 AM CST	Tornado Warning	BMX	Pike	47 min
Jan 21, 9:23 AM CST	Tornado Warning	BMX	Barbour	52 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.