Alert archive / Alabama / Tornado Warnings in 2009

Tornado Warning 92, NWS Birmingham, AL

April 19, 2009Bibb County, Hale County, Perry County, Alabama

NWS Birmingham, AL issued this tornado warning at Apr 19, 2009, 8:10 PM CDT for Bibb County, Hale County, Perry County, Alabama. It was in force for 65 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 19, 2009, 8:10 PM CDT (01:10 UTC)
Expired
Apr 19, 2009, 9:15 PM CDT
In force
65 min
Issued by
NWS Birmingham, AL
Area
Storm-based polygon

Counties Bibb County, AL, Hale County, AL, Perry County, AL

The radar

The Birmingham radar (KBMX), 67 km from the middle of the area, began a volume at 01:12 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.

IssuedProductOfficeLasted
Apr 19, 2:19 PM CDTTornado WatchSPC7 hr

The nearest sounding before it

Birmingham, AL (KBMX), launched 00:00Z, 1.2 hours before the alert went out and 67 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 00:00Z on 2009-04-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 225 joules per kilogram.LCLEL10008507005003002001001 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 00:00Z on 2009-04-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 466 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
225 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
490 m above ground
0-6 km bulk shear
52 kt
0-1 km storm-relative helicity
466 m²/s²
0-3 km storm-relative helicity
529 m²/s²
Significant tornado parameter
0.6
Supercell composite
2.5

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WFUS54 KBMX 200110
TORBMX
ALC007-065-105-200215-
/O.NEW.KBMX.TO.W.0092.090420T0110Z-090420T0215Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE BIRMINGHAM AL
810 PM CDT SUN APR 19 2009

THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHWESTERN BIBB COUNTY IN CENTRAL ALABAMA...
  NORTHERN PERRY COUNTY IN CENTRAL ALABAMA...
  CENTRAL HALE COUNTY IN WEST CENTRAL ALABAMA...
  THIS INCLUDES THE CITY OF GREENSBORO...

* UNTIL 915 PM CDT

* AT 808 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR
  SAWYERVILLE...OR 6 MILES NORTHWEST OF GREENSBORO...MOVING EAST AT
  25 MPH.

* THE TORNADO WILL BE NEAR...
  GREENSBORO BY 815 PM CDT...
  8 MILES SOUTH OF HARRISBURG BY 910 PM CDT...

THIS INCLUDES INTERSTATE 65 EXIT NUMBERS 208 THROUGH 219.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM CDT SUNDAY EVENING FOR
ALABAMA.

&&

LAT...LON 3290 8706 3263 8706 3268 8775 3286 8775
TIME...MOT...LOC 0110Z 270DEG 21KT 3277 8764

$$

03
2 follow-up statements
000 
WWUS54 KBMX 200131
SVSBMX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
831 PM CDT SUN APR 19 2009

ALC007-065-105-200215-
/O.CON.KBMX.TO.W.0092.000000T0000Z-090420T0215Z/
PERRY AL-HALE AL-BIBB AL-
831 PM CDT SUN APR 19 2009

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 915 PM CDT FOR
SOUTHWESTERN BIBB...EAST CENTRAL HALE AND NORTHERN PERRY COUNTIES...

AT 828 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO.  THIS TORNADO WAS LOCATED 6 MILES WEST OF MORGAN
SPRINGS...OR 7 MILES NORTHEAST OF GREENSBORO...MOVING EAST AT 25 MPH.

THE TORNADO WILL BE NEAR...
  6 MILES SOUTH OF WATEROAK BY 835 PM CDT...
  MORGAN SPRINGS BY 840 PM CDT...
  MORGAN SPRINGS AND 6 MILES NORTH OF FOLSOM BY 845 PM CDT...
  ELLARDS BY 905 PM CDT...
  6 MILES NORTH OF SPROTT AND 7 MILES SOUTH OF HARRISBURG BY 910 PM
  CDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM CDT SUNDAY EVENING FOR
ALABAMA.

&&

LAT...LON 3290 8706 3263 8706 3270 8757 3287 8754
TIME...MOT...LOC 0131Z 270DEG 21KT 3277 8750

$$
000 
WWUS54 KBMX 200146
SVSBMX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
846 PM CDT SUN APR 19 2009

ALC065-200155-
/O.CAN.KBMX.TO.W.0092.000000T0000Z-090420T0215Z/
HALE AL-
846 PM CDT SUN APR 19 2009

...THE TORNADO WARNING FOR EAST CENTRAL HALE COUNTY IS CANCELLED...

A TORNADO WATCH REMAINS IN EFFECT UNTIL 100 AM CDT MONDAY MORNING FOR
ALABAMA.

LAT...LON 3283 8744 3283 8742 3287 8742 3290 8706
      3263 8706 3269 8745
TIME...MOT...LOC 0145Z 270DEG 21KT 3277 8741

$$

ALC007-105-200215-
/O.CON.KBMX.TO.W.0092.000000T0000Z-090420T0215Z/
PERRY AL-BIBB AL-
846 PM CDT SUN APR 19 2009

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 915 PM CDT FOR SOUTH
CENTRAL BIBB AND NORTHERN PERRY COUNTIES...

AT 845 PM CDT...THIS TORNADO WAS LOCATED NEAR MORGAN SPRINGS...OR 11 
MILES NORTHWEST OF MARION...MOVING EAST AT 25 MPH.

THE TORNADO WILL BE NEAR...
  ELLARDS BY 905 PM CDT...
  6 MILES NORTH OF SPROTT AND 7 MILES SOUTH OF HARRISBURG BY 910 PM
  CDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT UNTIL 100 AM CDT MONDAY MORNING FOR
ALABAMA.

&&

LAT...LON 3283 8744 3283 8742 3287 8742 3290 8706
      3263 8706 3269 8745
TIME...MOT...LOC 0145Z 270DEG 21KT 3277 8741

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 19, 7:00 PM CDTTornado WarningBMXShelby60 min
Apr 19, 7:05 PM CDTTornado WarningBMXSt. Clair, Shelby, Talladega55 min
Apr 19, 7:28 PM CDTTornado WarningBMXGreene, Hale47 min
Apr 19, 7:33 PM CDTSevere Thunderstorm WarningBMXClay, Cleburne, Randolph42 min
Apr 19, 7:38 PM CDTSevere Thunderstorm WarningBMXFayette, Jefferson, Tuscaloosa, Walker52 min
Apr 19, 7:44 PM CDTTornado WarningBMXAutauga, Chilton, Coosa, Elmore46 min
Apr 19, 7:47 PM CDTSevere Thunderstorm WarningBMXCalhoun, Clay, Cleburne, Randolph, Talladega43 min
Apr 19, 7:47 PM CDTTornado WarningBMXJefferson, Walker17 min
Apr 19, 7:52 PM CDTSevere Thunderstorm WarningBMXBlount, Etowah, Jefferson, Walker38 min
Apr 19, 8:13 PM CDTSevere Thunderstorm WarningBMXCalhoun, Cleburne, Talladega47 min
Apr 19, 8:21 PM CDTTornado WarningBMXCoosa, Tallapoosa37 min
Apr 19, 8:23 PM CDTSevere Thunderstorm WarningBMXBlount, Cherokee, Etowah, Jefferson, St. Clair, Tuscaloosa and 1 more52 min
Apr 19, 8:48 PM CDTTornado WarningBMXBullock, Macon42 min
Apr 19, 9:01 PM CDTTornado WarningBMXBlount, Calhoun, Etowah, St. Clair29 min
Apr 19, 9:12 PM CDTTornado WarningBMXAutauga, Bibb, Chilton, Dallas, Perry48 min
Apr 19, 9:13 PM CDTSevere Thunderstorm WarningBMXCherokee32 min
Apr 19, 9:21 PM CDTTornado WarningBMXLee, Macon, Russell54 min
Apr 19, 9:28 PM CDTTornado WarningBMXCalhoun, Cherokee, Etowah, St. Clair47 min
Apr 19, 9:51 PM CDTTornado WarningBMXCalhoun, Clay, Cleburne, Randolph, Talladega54 min
Apr 19, 9:51 PM CDTTornado WarningBMXLee, Russell54 min
Apr 19, 10:06 PM CDTSevere Thunderstorm WarningBMXCalhoun, Cherokee, Cleburne, Etowah39 min
Apr 19, 10:31 PM CDTSevere Thunderstorm WarningBMXAutauga, Chilton, Coosa, Elmore, Tallapoosa44 min
Apr 19, 11:13 PM CDTSevere Thunderstorm WarningBMXElmore, Tallapoosa47 min

Nearby

Tornado Warnings in Alabama, 2009Every tornado warning in 2009Tornadoes in 2009

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.