Alert archive / Alabama / Severe Thunderstorm Warnings in 2007

Severe Thunderstorm Warning 13, NWS Birmingham, AL

January 7, 2007Jefferson County, Alabama

NWS Birmingham, AL issued this severe thunderstorm warning at Jan 7, 2007, 1:29 PM CST for Jefferson County, Alabama. It was in force for 34 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 7, 2007, 1:29 PM CST (19:29 UTC)
Expired
Jan 7, 2007, 2:03 PM CST
In force
34 min
Issued by
NWS Birmingham, AL
Area
Counties, with a storm outline in the text

County Jefferson County, AL

The radar

The Birmingham radar (KBMX), 48 km from the middle of the area, began a volume at 19:32 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
Jan 7, 12:26 PM CSTTornado WatchSPC6 hr

The nearest sounding before it

Birmingham, AL (KBMX), launched 12:00Z, 7.5 hours before the alert went out and 47 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 2007-01-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Birmingham, AL at 12:00Z on 2007-01-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 244 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
446 m above ground
0-6 km bulk shear
50 kt
0-1 km storm-relative helicity
244 m²/s²
0-3 km storm-relative helicity
317 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

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

000 
WUUS54 KBMX 071929
SVRBMX
ALC073-072015-
/O.NEW.KBMX.SV.W.0013.070107T1929Z-070107T2015Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BIRMINGHAM AL
129 PM CST SUN JAN 7 2007

THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  JEFFERSON COUNTY IN CENTRAL ALABAMA
  THIS INCLUDES THE CITIES OF...WARRIOR...VESTAVIA HILLS...
  TRUSSVILLE...TARRANT...PLEASANT GROVE...MOUNTAIN BROOK...MINOR...
  MIDFIELD...LIPSCOMB...LEEDS...IRONDALE...HUEYTOWN...HOOVER...
  HOMEWOOD...GARDENDALE...FULTONDALE...FORESTDALE...FAIRFIELD...
  CENTER POINT...CAHABA HEIGHTS...BRIGHTON...BIRMINGHAM...BESSEMER...
  ADAMSVILLE...PINSON-CLAY-CHALKVILLE

* UNTIL 215 PM CST

* AT 128 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN
  EXCESS OF 60 MPH.  THESE STORMS WERE LOCATED ALONG A LINE EXTENDING
  FROM KIMBERLY TO 12 MILES SOUTHWEST OF HUEYTOWN...OR ALONG A LINE
  EXTENDING FROM WARRIOR TO 12 MILES SOUTHWEST OF HUEYTOWN...AND
  MOVING EAST AT 30 MPH.

* SEVERE THUNDERSTORMS WILL BE NEAR...
  FORESTDALE...PLEASANT GROVE...MINOR AND GARDENDALE BY 135 PM CST
  HUEYTOWN...FULTONDALE...FAIRFIELD AND BRIGHTON BY 140 PM CST
  TARRANT AND MIDFIELD BY 145 PM CST

A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. IF A TORNADO
IS SPOTTED... ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A STURDY
STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM.

THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD
TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.

TO REPORT SEVERE WEATHER...
ON THE WEB WWW.SRH.NOAA.GOV/BMX (SUBMIT A STORM REPORT)
CALL 1-800-856-0758.

LAT...LON 3350 8726 3353 8727 3356 8719 3359 8720
      3367 8706 3377 8701 3384 8689 3384 8676
      3376 8665 3376 8655 3367 8653 3357 8656
      3353 8653 3347 8662 3348 8667 3326 8699
      3331 8716 3348 8734

$$
2 follow-up statements
000 
WWUS54 KBMX 071945
SVSBMX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
145 PM CST SUN JAN 7 2007

ALC073-072015-
/O.CON.KBMX.SV.W.0013.000000T0000Z-070107T2015Z/
JEFFERSON AL-
145 PM CST SUN JAN 7 2007

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 215 PM CST
FOR JEFFERSON COUNTY...

AT 141 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING
WINDS IN EXCESS OF 60 MPH.  THESE STORMS WERE LOCATED ALONG A LINE
EXTENDING FROM TRAFFORD TO NORTH JOHNS...OR ALONG A LINE EXTENDING
FROM 7 MILES NORTH OF PINSON-CLAY-CHALKVILLE TO 6 MILES SOUTHWEST OF
BESSEMER...MOVING EAST AT 30 MPH.

SEVERE THUNDERSTORMS WILL BE NEAR...
  BIRMINGHAM...PINSON...PINSON-CLAY-CHALKVILLE AND BIRMINGHAM AIRPORT
  BY 150 PM CST
  HOMEWOOD AND CENTER POINT BY 155 PM CST
  VESTAVIA HILLS AND MOUNTAIN BROOK BY 200 PM CST
  TRUSSVILLE AND IRONDALE BY 205 PM CST


A TORNADO WATCH REMAINS IN EFFECT UNTIL 800 PM CST SUNDAY EVENING FOR
ALABAMA.

LAT...LON 3350 8726 3353 8727 3356 8719 3359 8720
      3367 8706 3377 8701 3384 8689 3384 8676
      3376 8665 3376 8655 3367 8653 3357 8656
      3353 8653 3347 8662 3348 8667 3326 8699
      3331 8716 3348 8734

$$
000 
WWUS54 KBMX 072003
SVSBMX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
203 PM CST SUN JAN 7 2007

ALC073-072013-
/O.CAN.KBMX.SV.W.0013.000000T0000Z-070107T2015Z/
JEFFERSON AL-
203 PM CST SUN JAN 7 2007

...THE SEVERE THUNDERSTORM WARNING FOR JEFFERSON COUNTY IS
CANCELLED...

AT 203 PM CST NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THAT
THE THUNDERSTORMS THAT PROMPTED THE WARNING HAD WEAKENED AND WAS NO
LONGER SEVERE...THUS THE WARNING HAS BEEN CANCELLED.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 800 PM CST SUNDAY EVENING.

LAT...LON 3350 8726 3353 8727 3356 8719 3359 8720
      3367 8706 3377 8701 3384 8689 3384 8676
      3376 8665 3376 8655 3367 8653 3357 8656
      3353 8653 3347 8662 3348 8667 3326 8699
      3331 8716 3348 8734

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 7, 1:01 PM CSTSevere Thunderstorm WarningBMXTuscaloosa29 min
Jan 7, 3:10 PM CSTTornado WarningBMXMontgomery17 min
Jan 7, 3:20 PM CSTTornado WarningBMXElmore25 min
Jan 7, 3:22 PM CSTSevere Thunderstorm WarningBMXTalladega23 min
Jan 7, 3:41 PM CSTTornado WarningBMXElmore19 min
Jan 7, 3:44 PM CSTTornado WarningBMXClay31 min
Jan 7, 3:52 PM CSTTornado WarningBMXTallapoosa23 min
Jan 7, 4:15 PM CSTTornado WarningBMXChambers45 min
Jan 7, 4:15 PM CSTTornado WarningBMXTallapoosa15 min
Jan 7, 4:53 PM CSTFlash Flood WarningBMXPike3 hr
Jan 7, 4:53 PM CSTFlash Flood WarningBMXAutauga, Bullock, Elmore, Fayette, Jefferson, Lamar and 8 more233 days
Jan 7, 4:59 PM CSTTornado WarningBMXChambers16 min
Jan 7, 5:53 PM CSTSevere Thunderstorm WarningBMXMacon52 min
Jan 7, 5:56 PM CSTTornado WarningBMXMacon18 min

Nearby

Severe Thunderstorm Warnings in Alabama, 2007Every severe thunderstorm warning in 2007

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.