Alert archive / Alabama / Tornado Warnings in 2017

Tornado Warning 27, NWS Birmingham, AL

April 27, 2017Russell County, Alabama

NWS Birmingham, AL issued this tornado warning at Apr 27, 2017, 11:58 AM CDT for Russell County, Alabama. It was in force for 27 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, 11:58 AM CDT (16:58 UTC)
Expired
Apr 27, 2017, 12:25 PM CDT
In force
27 min
Issued by
NWS Birmingham, AL
Area
Storm-based polygon
Tornado
Radar indicated
Hail
1.0 in

County Russell County, AL

The radar

The Maxwell AFB radar (KMXX), 54 km from the middle of the area, began a volume at 17:02 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

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 5.0 hours before the alert went out and 141 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, Peachtre/Fal Fld, GA at 12:00Z on 2017-04-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 45 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Peachtre/Fal Fld, GA at 12:00Z on 2017-04-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 351 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
45 J/kg
Mixed-layer CIN
-363 J/kg
Mixed-layer LCL
703 m above ground
0-6 km bulk shear
63 kt
0-1 km storm-relative helicity
351 m²/s²
0-3 km storm-relative helicity
395 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.4

Open this sounding in Storm Lab

The text

As transmitted.

400 
WFUS54 KBMX 271658
TORBMX
ALC113-271745-
/O.NEW.KBMX.TO.W.0027.170427T1658Z-170427T1745Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Birmingham AL
1158 AM CDT THU APR 27 2017

The National Weather Service in Birmingham has issued a

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

* Until 1245 PM CDT
    
* At 1158 AM CDT, a severe thunderstorm capable of producing a
  tornado was located over Hurtsboro, 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...
  Hurtsboro, Seale, Russell County Sports Complex, Crawford,
  Parkmanville and Hatchechubbe.

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 3220 8540 3219 8543 3226 8543 3247 8522
      3247 8513 3225 8504
TIME...MOT...LOC 1658Z 238DEG 32KT 3222 8544 

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

$$

61
2 follow-up statements
012 
WWUS54 KBMX 271712
SVSBMX

Severe Weather Statement
National Weather Service Birmingham AL
1212 PM CDT THU APR 27 2017

ALC113-271745-
/O.CON.KBMX.TO.W.0027.000000T0000Z-170427T1745Z/
Russell AL-
1212 PM CDT THU APR 27 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1245 PM CDT FOR CENTRAL
RUSSELL COUNTY...
    
At 1212 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Uchee, or near Hurtsboro, 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...
Seale, Russell County Sports Complex, Parkmanville and Hatchechubbe. 

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 3224 8534 3228 8536 3245 8512 3228 8505
TIME...MOT...LOC 1712Z 243DEG 32KT 3227 8531 

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

$$
61
823 
WWUS54 KBMX 271725
SVSBMX

Severe Weather Statement
National Weather Service Birmingham AL
1225 PM CDT THU APR 27 2017

ALC113-271735-
/O.CAN.KBMX.TO.W.0027.000000T0000Z-170427T1745Z/
Russell AL-
1225 PM CDT THU APR 27 2017

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

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

LAT...LON 3224 8534 3228 8536 3245 8512 3228 8505
TIME...MOT...LOC 1724Z 238DEG 32KT 3233 8519 

$$

61

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 27, 12:06 AM CDTSevere Thunderstorm WarningBMXSumter39 min
Apr 27, 12:07 AM CDTTornado WarningBMXPickens25 min
Apr 27, 12:33 AM CDTSevere Thunderstorm WarningBMXGreene42 min
Apr 27, 12:56 AM CDTSevere Thunderstorm WarningBMXSumter49 min
Apr 27, 6:13 AM CDTTornado WarningBMXLowndes13 min
Apr 27, 8:41 AM CDTSpecial Weather StatementBMXTallapoosa34 min
Apr 27, 9:09 AM CDTTornado WarningBMXBullock, Montgomery20 min
Apr 27, 11:21 AM CDTTornado WarningBMXPike24 min
Apr 27, 11:31 AM CDTTornado WarningBMXLee, Russell14 min
Apr 27, 11:40 AM CDTTornado Warning Tornado observedBMXBullock36 min
Apr 27, 12:04 PM CDTTornado WarningBMXBarbour, Bullock41 min

Nearby

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