Alert archive / Alabama / Tornado Warnings in 2017

Tornado Warning 50, NWS Birmingham, AL

August 31, 2017Hale County, Alabama

NWS Birmingham, AL issued this tornado warning at Aug 31, 2017, 6:07 PM CDT for Hale County, Alabama. It was in force for 38 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
Aug 31, 2017, 6:07 PM CDT (23:07 UTC)
Expired
Aug 31, 2017, 6:45 PM CDT
In force
38 min
Issued by
NWS Birmingham, AL
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.75 in

County Hale County, AL

The radar

The Birmingham radar (KBMX), 97 km from the middle of the area, began a volume at 23:08 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

TimeReportWhereRemark
Aug 31, 6:20 PM CDTFUNNEL CLOUD2 Ese Greensboro Muni A, ALSEVERAL FUNNEL CLOUD REPORTS NEAR AND SOUTH OF THE CITY OF GREENSBORO.

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.

IssuedProductOfficeLasted
Aug 31, 11:13 AM CDTTornado WatchSPC11 hr

The nearest sounding before it

Birmingham, AL (KBMX), launched 12:00Z, 11.1 hours before the alert went out and 97 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, Birmingham, AL at 12:00Z on 2017-08-31Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 724 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, Birmingham, AL at 12:00Z on 2017-08-31The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 198 square meters per square second.193958Sfc1 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
724 J/kg
Mixed-layer CIN
-9 J/kg
Mixed-layer LCL
569 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
198 m²/s²
0-3 km storm-relative helicity
229 m²/s²
Significant tornado parameter
0.5
Supercell composite
4.5

Open this sounding in Storm Lab

The text

As transmitted.

899 
WFUS54 KBMX 312307
TORBMX
ALC065-312345-
/O.NEW.KBMX.TO.W.0050.170831T2307Z-170831T2345Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Birmingham AL
607 PM CDT THU AUG 31 2017

The National Weather Service in Birmingham has issued a

* Tornado Warning for...
  Central Hale County in west central Alabama...

* Until 645 PM CDT
    
* At 607 PM CDT, a severe thunderstorm capable of producing a tornado
  was located near Duffys Bend, or 9 miles southwest of Greensboro,
  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...
  Greensboro, Greensboro Municipal Airport, Wateroak, Cedarville and
  Phipps.

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 3264 8777 3263 8775 3266 8775 3294 8752
      3289 8742 3283 8742 3283 8747 3277 8747
      3255 8770 3259 8774 3261 8775 3261 8777
      3262 8778
TIME...MOT...LOC 2307Z 220DEG 32KT 3261 8771 

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

$$

32/Davis
2 follow-up statements
944 
WWUS54 KBMX 312318
SVSBMX

Severe Weather Statement
National Weather Service Birmingham AL
618 PM CDT THU AUG 31 2017

ALC065-312345-
/O.CON.KBMX.TO.W.0050.000000T0000Z-170831T2345Z/
Hale AL-
618 PM CDT THU AUG 31 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 645 PM CDT FOR
NORTHEASTERN HALE COUNTY...
    
At 618 PM CDT, a severe thunderstorm capable of producing a tornado
was located over Greensboro Municipal Airport, or over Greensboro,
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...
Greensboro, Greensboro Municipal Airport, Wateroak and Phipps. 

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 3294 8752 3289 8742 3283 8742 3283 8747
      3277 8747 3263 8761 3269 8771
TIME...MOT...LOC 2318Z 220DEG 32KT 3269 8763 

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

$$

32/Davis
462 
WWUS54 KBMX 312330
SVSBMX

Severe Weather Statement
National Weather Service Birmingham AL
630 PM CDT THU AUG 31 2017

ALC065-312345-
/O.CON.KBMX.TO.W.0050.000000T0000Z-170831T2345Z/
Hale AL-
630 PM CDT THU AUG 31 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 645 PM CDT FOR
NORTHEASTERN HALE COUNTY...
    
At 630 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Greensboro, 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...
Phipps and Wateroak. 

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 3294 8752 3289 8742 3283 8742 3283 8747
      3277 8747 3270 8754 3273 8761 3286 8758
TIME...MOT...LOC 2330Z 220DEG 32KT 3277 8755 

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

$$

32/Davis

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 30, 7:17 PM CDTSpecial Weather StatementBMXBullock58 min
Aug 30, 7:19 PM CDTSpecial Weather StatementBMXPike26 min
Aug 30, 7:50 PM CDTSpecial Weather StatementBMXBarbour70 min
Aug 31, 12:01 PM CDTSpecial Weather StatementBMXMarengo29 min
Aug 31, 2:49 PM CDTWind AdvisoryBMXAutauga, Bibb, Blount, Calhoun, Chambers, Cherokee and 29 more27 hr
Aug 31, 3:12 PM CDTTornado WarningBMXPickens48 min
Aug 31, 3:38 PM CDTTornado WarningBMXFayette, Lamar, Pickens52 min
Aug 31, 3:42 PM CDTTornado WarningBMXHale, Perry10 min
Aug 31, 4:12 PM CDTTornado Warning Tornado observedBMXFayette30 min
Aug 31, 4:23 PM CDTTornado WarningBMXFayette, Pickens, Tuscaloosa52 min
Aug 31, 4:26 PM CDTTornado Warning Tornado observedConsiderable damage threatBMXMarion, Winston35 min
Aug 31, 5:30 PM CDTTornado WarningBMXWinston23 min
Aug 31, 5:41 PM CDTSpecial Weather StatementBMXMarengo34 min
Aug 31, 6:55 PM CDTTornado WarningBMXBibb65 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.