Alert archive / Alabama / Tornado Warnings in 2010

Tornado Warning 49, NWS Birmingham, AL

October 26, 2010Blount County, Jefferson County, Alabama

NWS Birmingham, AL issued this tornado warning at Oct 26, 2010, 6:49 PM CDT for Blount County, Jefferson County, Alabama. It was in force for 41 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
Oct 26, 2010, 6:49 PM CDT (23:49 UTC)
Expired
Oct 26, 2010, 7:30 PM CDT
In force
41 min
Issued by
NWS Birmingham, AL
Area
Storm-based polygon

Counties Blount County, AL, Jefferson County, AL

The radar

The Birmingham radar (KBMX), 74 km from the middle of the area, began a volume at 23:51 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
Oct 26, 9:27 AM CDTTornado Watch PDSSPC11 hr
Oct 26, 2:59 PM CDTTornado WatchSPC5 hr

The nearest sounding before it

Birmingham, AL (KBMX), launched 12:00Z, 11.8 hours before the alert went out and 73 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 2010-10-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 695 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 2010-10-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 271 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
695 J/kg
Mixed-layer CIN
-27 J/kg
Mixed-layer LCL
625 m above ground
0-6 km bulk shear
49 kt
0-1 km storm-relative helicity
271 m²/s²
0-3 km storm-relative helicity
330 m²/s²
Significant tornado parameter
1.3
Supercell composite
6.8

Open this sounding in Storm Lab

The text

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

320 
WFUS54 KBMX 262349
TORBMX
ALC009-073-270030-
/O.NEW.KBMX.TO.W.0049.101026T2349Z-101027T0030Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE BIRMINGHAM AL
649 PM CDT TUE OCT 26 2010

THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHWESTERN BLOUNT COUNTY IN CENTRAL ALABAMA...
  NORTHEASTERN JEFFERSON COUNTY IN CENTRAL ALABAMA...

* UNTIL 730 PM CDT

* AT 647 PM CDT...THE NATIONAL WEATHER SERVICE INDICATED A SEVERE
  THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM
  WAS LOCATED NEAR ARKADELPHIA...OR 10 MILES NORTHEAST OF SUMITON...
  AND MOVING EAST AT 35 MPH.

* LOCATIONS IMPACTED INCLUDE...
  KIMBERLY...WARRIOR...TRAFFORD...COUNTY LINE...HAYDEN...DALLAS...
  LOCUST FORK...FAIRVIEW...ALLGOOD AND RICKWOOD CAVERNS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE
LOWEST FLOOR OF A STURDY BUILDING.

&&

TO REPORT SEVERE WEATHER...
CALL 1-800-856-0758.

LAT...LON 3398 8650 3382 8648 3379 8658 3377 8658
      3376 8655 3375 8655 3375 8699 3379 8701
      3380 8696 3387 8697 3388 8693 3390 8693
TIME...MOT...LOC 2349Z 254DEG 31KT 3382 8687

$$

27
2 follow-up statements
653 
WWUS54 KBMX 262359 RRA
SVSBMX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
659 PM CDT TUE OCT 26 2010

ALC009-073-270030-
/O.CON.KBMX.TO.W.0049.000000T0000Z-101027T0030Z/
JEFFERSON AL-BLOUNT AL-
659 PM CDT TUE OCT 26 2010

...A TORNADO WARNING REMAINS IN EFFECT FOR SOUTH CENTRAL BLOUNT AND
NORTHEASTERN JEFFERSON COUNTIES UNTIL 730 PM CDT...

AT 655 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS DANGEROUS
STORM WAS LOCATED NEAR WARRIOR...OR 12 MILES NORTH OF GARDENDALE...
MOVING EAST AT 35 MPH.

THIS DANGEROUS STORM WILL BE NEAR...
  COUNTY LINE AND HAYDEN AROUND 705 PM CDT.
  DALLAS AROUND 710 PM CDT.
  LOCUST FORK AROUND 715 PM CDT.
  FAIRVIEW AROUND 720 PM CDT.
  ALLGOOD AROUND 725 PM CDT.

OTHER LOCATIONS IMPACTED BY THIS DANGEROUS STORM INCLUDE MT OLIVE...
MOUNT OLIVE...REMLAP...CLEAR SPRINGS AND EASLEY.

TO REPORT SEVERE WEATHER...CALL 1-800-856-0758.

LAT...LON 3398 8650 3382 8648 3379 8657 3376 8658
      3376 8655 3375 8655 3376 8686 3391 8686
TIME...MOT...LOC 0000Z 254DEG 31KT 3384 8676

$$

27
189 
WWUS54 KBMX 270010
SVSBMX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
710 PM CDT TUE OCT 26 2010

ALC073-270020-
/O.CAN.KBMX.TO.W.0049.000000T0000Z-101027T0030Z/
JEFFERSON AL-
710 PM CDT TUE OCT 26 2010

...THE TORNADO WARNING FOR NORTHEASTERN JEFFERSON COUNTY IS
CANCELLED...

THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED 
AREA.

TO REPORT SEVERE WEATHER...CALL 1-800-856-0758.

LAT...LON 3391 8649 3390 8649 3382 8648 3380 8654
      3379 8658 3376 8659 3379 8669 3381 8672
      3390 8674 3398 8650
TIME...MOT...LOC 0010Z 254DEG 31KT 3386 8666

$$

ALC009-270030-
/O.CON.KBMX.TO.W.0049.000000T0000Z-101027T0030Z/
BLOUNT AL-
710 PM CDT TUE OCT 26 2010

...A TORNADO WARNING REMAINS IN EFFECT FOR SOUTH CENTRAL BLOUNT
COUNTY UNTIL 730 PM CDT...

AT 708 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS DANGEROUS
STORM WAS LOCATED NEAR DALLAS...OR 11 MILES SOUTHWEST OF CLEVELAND...
MOVING EAST AT 35 MPH.

THIS DANGEROUS STORM WILL BE NEAR...
  LOCUST FORK AROUND 715 PM CDT.
  FAIRVIEW AROUND 720 PM CDT.
  ALLGOOD AROUND 725 PM CDT.

OTHER LOCATIONS IMPACTED BY THIS DANGEROUS STORM INCLUDE CLEAR
SPRINGS AND EASLEY.

TO REPORT SEVERE WEATHER...CALL 1-800-856-0758.

LAT...LON 3391 8649 3390 8649 3382 8648 3380 8654
      3379 8658 3376 8659 3379 8669 3381 8672
      3390 8674 3398 8650
TIME...MOT...LOC 0010Z 254DEG 31KT 3386 8666

$$

27

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 25, 8:01 PM CDTWind AdvisoryBMXAutauga, Barbour, Bibb, Blount, Bullock, Calhoun and 33 more22 hr
Oct 26, 12:20 PM CDTSevere Thunderstorm WarningBMXMarion, Winston25 min
Oct 26, 12:30 PM CDTTornado WarningBMXMarion15 min
Oct 26, 2:24 PM CDTSevere Thunderstorm WarningBMXMarion23 min
Oct 26, 2:28 PM CDTTornado WarningBMXWalker, Winston32 min
Oct 26, 2:39 PM CDTSevere Thunderstorm WarningBMXFayette, Lamar, Walker51 min
Oct 26, 2:46 PM CDTTornado WarningBMXFayette, Walker29 min
Oct 26, 2:48 PM CDTTornado WarningBMXCalhoun, Etowah, St. Clair42 min
Oct 26, 3:11 PM CDTSevere Thunderstorm WarningBMXShelby49 min
Oct 26, 3:14 PM CDTTornado WarningBMXWalker, Winston38 min
Oct 26, 3:19 PM CDTTornado WarningBMXCalhoun, Cherokee, Etowah, St. Clair41 min
Oct 26, 3:22 PM CDTTornado WarningBMXBlount38 min
Oct 26, 3:39 PM CDTSevere Thunderstorm WarningBMXPickens, Tuscaloosa51 min
Oct 26, 4:00 PM CDTTornado WarningBMXTuscaloosa26 min
Oct 26, 4:08 PM CDTTornado WarningBMXClay, Cleburne, Talladega52 min
Oct 26, 5:05 PM CDTSevere Thunderstorm WarningBMXClay, Cleburne, Randolph, Talladega40 min
Oct 26, 5:15 PM CDTTornado WarningBMXBlount30 min
Oct 26, 5:20 PM CDTTornado WarningBMXWinston11 min
Oct 26, 5:37 PM CDTTornado WarningBMXBlount20 min
Oct 26, 5:54 PM CDTTornado WarningBMXWalker, Winston13 min
Oct 26, 6:01 PM CDTTornado WarningBMXPickens, Tuscaloosa44 min
Oct 26, 6:36 PM CDTTornado WarningBMXTuscaloosa39 min
Oct 26, 6:50 PM CDTTornado WarningBMXFayette, Walker26 min
Oct 26, 6:55 PM CDTSevere Thunderstorm WarningBMXBlount, Etowah50 min
Oct 26, 6:57 PM CDTTornado WarningBMXCherokee17 min

Nearby

Tornado Warnings in Alabama, 2010Every tornado warning in 2010Tornadoes in 2010

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.