Alert archive / Alabama / Severe Thunderstorm Warnings in 2006

Severe Thunderstorm Warning 113, NWS Birmingham, AL

April 19, 2006Blount County, Alabama

NWS Birmingham, AL issued this severe thunderstorm warning at Apr 19, 2006, 4:44 PM CDT for Blount County, Alabama. It was in force for 61 min. 2 reports 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: Apr 19, 2006, 4:44 PM CDT (21:44 UTC)
Expired: Apr 19, 2006, 5:45 PM CDT
In force: 61 min
Issued by: NWS Birmingham, AL
Area: Counties, with a storm outline in the text

County Blount County, AL

The radar

The Birmingham radar (KBMX), 96 km from the middle of the area, began a volume at 21:46 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

Time	Report	Where	Remark
Apr 19, 5:05 PM CDT	HAIL 1	4 N Springville, AL	QUARTER SIZED HAIL COVERING THE GROUND IN PINE MOUNTAIN.
Apr 19, 5:20 PM CDT	HAIL 1.5	N Cleveland, AL	PING BALL SIZE HAIL IN THE CITY OF CLEVELAND.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

Did it verify

Verified. The Iowa Environmental Mesonet's Cow matched 2 storm reports to this severe thunderstorm warning; the first came 21 minutes after it went out.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Apr 19, 2:54 PM CDT	Tornado Watch	SPC	6 hr

The nearest sounding before it

Birmingham, AL (KBMX), launched 12:00Z, 9.7 hours before the alert went out and 95 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 123 J/kg
Mixed-layer CIN: -322 J/kg
Mixed-layer LCL: 1779 m above ground
0-6 km bulk shear: 31 kt
0-1 km storm-relative helicity: 102 m²/s²
0-3 km storm-relative helicity: 84 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

000 
WUUS54 KBMX 192145
SVRBMX
ALC009-192245-
/O.NEW.KBMX.SV.W.0113.060419T2144Z-060419T2245Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BIRMINGHAM AL
445 PM CDT WED APR 19 2006

THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  BLOUNT COUNTY IN CENTRAL ALABAMA
  THIS INCLUDES THE CITY OF ONEONTA

* UNTIL 545 PM CDT

* AT 445 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING BASEBALL SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR   
  ONEONTA...AND MOVING SOUTHEAST AT 15 MPH.  

* THE SEVERE THUNDERSTORM WILL AFFECT THE ONEONTA AND HIGHLAND LAKE 
  AREAS.  ADDITIONAL STORMS WILL MOVE INTO THE BLOUNTSVILLE AND      
  CLEVELAND AREAS.

NUMEROUS REPORTS OF GOLF BALL SIZE HAIL HAVE BEEN RECEIVED IN BLOUNT 
COUNTY WITH THIS DANGEROUS STORM

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.

LAT...LON 3411 8631 3407 8634 3397 8635 3393 8638
      3391 8635 3387 8636 3383 8643 3380 8658
      3394 8681 3426 8646

$$

MBS/91

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Birmingham, AL wrote its last area forecast discussion before this severe thunderstorm warning went out at Apr 19, 2:55 PM CDT, 1 hour 49 minutes earlier.

Area forecast discussion, Apr 19, 2:55 PM CDT, 1 hour 49 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BIRMINGHAM AL
255 PM CDT WED APR 19 2006

.SHORT TERM...TONIGHT THROUGH SUNDAY NIGHT.
IMPULSE ACROSS WESTERN ALABAMA WILL MOVE ACROSS THROUGH THE EVENING
HOURS.  THERE COULD BE SOME ADDITIONAL DEVELOPMENT AND SOME STORMS
MAY BE SEVERE.  WILL INCLUDE MAINLY ISOLATED TO SCATTERED WORDING.
ON THURSDAY MODELS INDICATE ANOTHER IMPULSE MOVING INTO THE AREA
NEAR MID DAY AND MOVING THROUGH DURING THE LATE AFTERNOON HOURS.
WILL FORECAST POPS IN THE CATEGORY WITH THE HIGHEST POPS WEST.
A FEW STORMS COULD BE SEVERE GIVEN THE UPPER SUPPORT...COLD
POOL ALOFT AND STEEP LAPSE RATES.  ACTIVITY SHOULD DIMINISH LATER
THURSDAY EVENING.  OVERNIGHT LOWS EACH NIGHT IN THE 60S...HIGHS
THURSDAY IN THE 80S.

FRIDAY AND FRIDAY NIGHT...INCREASING SOUTHERLY FLOW AND MUCH
STRONGER UPPER SUPPORT WILL MOVE INTO AND ACROSS THE AREA.  MODELS
DEPICT IMPRESSIVE MID LEVEL SHORT WAVE AND INCREASING VERTICAL
MOTION ESPECIALLY LATE AFTERNOON AND EVENING.  WILL FORECAST LIKELY
POPS NORTHWEST FRIDAY AND MAINLY CHANCE POPS ELSEWHERE.  HIGHEST
POPS WILL BE FRIDAY NIGHT AS UPPER SUPPORT MOVES THROUGH WITH
CATEGORICAL POPS NORTH AND LIKELY POPS SOUTH.  HIGHS FRIDAY 80 TO
85 AND THEN LOWS AT NIGHT 50S NORTH AND 60S SOUTH.

SATURDAY THROUGH SUNDAY NIGHT...SYSTEM WILL EXIT THE AREA SATURDAY
MORNING AND MUCH OF THE WEEKEND WILL BE RAIN FREE AND SLIGHTLY COOLER
AS WEAK HIGH PRESSURE BUILDS IN.  HIGH TEMPERATURES UPPER 70S NORTH
TO LOWER 80S SOUTH WITH OVERNIGHT LOWS IN THE 50S.

.LONG TERM...MONDAY THROUGH WEDNESDAY.
SOUTHWEST FLOW ALOFT AND SEVERAL IMPULSES MOVING INTO AND ACROSS
THE AREA WILL CONTINUE THROUGH EXTENDED PERIOD.  WILL GENERALLY
KEEP A CHANCE OF SHOWERS AND THUNDERSTORMS...ESPECIALLY DURING THE
PEAK HEATING HOURS.  HIGHS IN THE UPPER 70S NORTH AND LOWER 80S
SOUTH.  OVERNIGHT LOWS MAINLY IN THE 50S.

&&

.PRELIMINARY POINT TEMPS/POPS...
GADSDEN     61  82  61  80 /  30  40  30  40
ANNISTON    63  84  62  82 /  30  40  30  30
BIRMINGHAM  65  83  64  81 /  20  50  30  40
TUSCALOOSA  64  85  63  83 /  20  50  30  50
CALERA      64  84  62  82 /  20  30  20  30
AUBURN      65  85  65  83 /  30  30  20  20
MONTGOMERY  64  88  63  84 /  10  30  20  20
TROY        62  87  64  84 /  30  30  20  20

&&

.BMX WATCHES/WARNINGS/ADVISORIES...
AL...NONE.

&&

50

Hazardous weather outlook, Apr 19, 2:30 PM CDT, 2 hours 14 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BIRMINGHAM AL
230 PM CDT WED APR 19 2006

ALZ011>015-017>050-201930-
AUTAUGA-BARBOUR-BIBB-BLOUNT-BULLOCK-CALHOUN-CHAMBERS-CHEROKEE-
CHILTON-CLAY-CLEBURNE-COOSA-DALLAS-ELMORE-ETOWAH-FAYETTE-GREENE-HALE-
JEFFERSON-LAMAR-LEE-LOWNDES-MACON-MARENGO-MARION-MONTGOMERY-PERRY-
PICKENS-PIKE-RANDOLPH-RUSSELL-SHELBY-ST CLAIR-SUMTER-TALLADEGA-
TALLAPOOSA-TUSCALOOSA-WALKER-WINSTON-
230 PM CDT WED APR 19 2006

THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE COUNTIES SERVED BY
THE NATIONAL WEATHER SERVICE OFFICE IN BIRMINGHAM.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

SCATTERED SEVERE THUNDERSTORMS CAN BE EXPECTED UNTIL 10 PM CDT...
MAINLY NORTHEAST OF A WARRIOR TO SYLACAUGA TO AUBURN LINE.
VERY LARGE HAIL UP TO THE SIZE OF SOFTBALLS IS THE MAIN HAZARD
WITH THE STORMS...THOUGH DAMAGING WINDS UP TO 70 MPH ARE POSSIBLE
AS WELL.  ADDITIONAL ISOLATED SEVERE STORMS ARE POSSIBLE THROUGH
10 PM CDT NORTH OF A DEMOPOLIS TO WETUMPKA TO EUFAULA LINE.

SCATTERED THUNDERSTORMS WILL MAINLY DEVELOP AND EXIST ALONG
AN OLD OUTFLOW BOUNDARY STRETCHING ACROSS NORTHEAST AND EAST
CENTRAL ALABAMA.  WITH A VERY UNSTABLE AIRMASS IN PLACE...SOME OF
THESE STORMS WILL BE SEVERE WITH VERY LARGE HAIL AS THE MAIN HAZARD.
THESE STORMS WILL WEAKEN AND DIMINISH BETWEEN 9 PM CDT AND 11 PM CDT
WITH THE LOSS OF DAYTIME HEATING.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY.

SEVERE THUNDERSTORMS CAN BE EXPECTED THURSDAY AFTERNOON AND
EVENING...THEN AGAIN FRIDAY INTO FRIDAY NIGHT.  LARGE HAIL AND
DAMAGING WINDS ARE THE MAIN HAZARDS.

ON THURSDAY...THE ATMOSPHERE ACROSS CENTRAL ALABAMA WILL REMAIN
MOIST AND UNSTABLE.  THIS ATMOSPHERE WILL BE CAPABLE OF SUPPORTING
SEVERE THUNDERSTORM DEVELOPMENT.  IN ADDITION...AN UPPER LEVEL
DISTURBANCE MOVING OVER THE REGION WILL PROVIDE EXTRA LIFT FOR
THUNDERSTORM DEVELOPMENT.  ONCE AGAIN...THESE STORMS MAY DEVELOP
ANYWHERE ACROSS CENTRAL ALABAMA MAINLY DURING THE HEATING OF THE
DAY...BUT THE GREATEST THREAT WILL BE NORTH OF INTERSTATE 20.

ON FRIDAY AND FRIDAY NIGHT...A COLD FRONT WILL PUSH THROUGH
CENTRAL ALABAMA.  THE ATMOSPHERE AHEAD OF THIS FRONT WILL BE MOIST
AND UNSTABLE ACROSS ALL OF CENTRAL ALABAMA.  IN ADDITION...A STRONGER
UPPER LEVEL DISTURBANCE WILL BE ASSOCIATED WITH THE FRONT AS IT
PUSHES THROUGH.  THIS SITUATION MAY PRODUCE MORE WIDESPREAD SEVERE
WEATHER IN THE FORM OF DAMAGING WINDS AND LARGE HAIL.  THE STORMS
WILL BEGIN BETWEEN 2 PM CDT AND 4 PM CDT IN NORTHWEST ALABAMA AND
MOVE SOUTHEASTWARD...GRADUALLY WEAKENING IN SOUTHEAST ALABAMA BY
EARLY SATURDAY MORNING.

.SPOTTER INFORMATION STATEMENT...

STORM SPOTTERS AND EMERGENCY MANAGEMENT PERSONNEL HAVE ACTIVATED AND
WILL BE REQUIRED THROUGH 9 PM CDT...MAINLY NORTHEAST OF A WARRIOR TO
AUBURN LINE.  ACTIVATION MAY BE REQUIRED THURSDAY AFTERNOON...AND
FRIDAY AFTERNOON AND EVENING.  PLEASE STAY TUNED TO LATEST DETAILS
CONCERNING THESE POTENTIAL THUNDERSTORMS.

MBS/91

In the hours before

Local storm report, Apr 19, 3:47 PM CDT, 57 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
347 PM CDT WED APR 19 2006

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0346 PM     HAIL             BLOUNTSVILLE            34.08N 86.59W
04/19/2006  E1.75 INCH       BLOUNT             AL   EMERGENCY MNGR

            GOLF BALL SIZED HAIL IN BLOUNTSVILLE.

&&

DCW

Local storm report, Apr 19, 3:53 PM CDT, 51 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
353 PM CDT WED APR 19 2006

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0350 PM     HAIL             3 E BLOUNTSVILLE        34.08N 86.54W
04/19/2006  E1.00 INCH       BLOUNT             AL   PUBLIC

            QUARTER SIZED HAIL IN ROYAL.

&&

DCW

Local storm report, Apr 19, 3:59 PM CDT, 45 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
359 PM CDT WED APR 19 2006

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0354 PM     HAIL             SUSAN MOORE             34.07N 86.43W
04/19/2006  E0.75 INCH       BLOUNT             AL   PUBLIC

            PENNY SIZED HAIL IN SUSAN MOORE.

&&

DCW

Local storm report, Apr 19, 4:01 PM CDT, 43 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
401 PM CDT WED APR 19 2006

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0358 PM     HAIL             3 NNW STROUD            33.10N 85.35W
04/19/2006  E0.50 INCH       CHAMBERS           AL   PUBLIC

            MARBLE SIZED HAIL IN WELCH.

&&

DCW

Local storm report, Apr 19, 4:37 PM CDT, 7 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
437 PM CDT WED APR 19 2006

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0410 PM     HAIL             2 NE CLEVELAND          34.02N 86.55W
04/19/2006  E1.75 INCH       BLOUNT             AL   EMERGENCY MNGR

            GOLF BALL SIZED HAIL IN THE FIVE POINTS COMMUNITY.

0412 PM     HAIL             1 W KEENER              34.16N 85.97W
04/19/2006  E0.88 INCH       ETOWAH             AL   BROADCAST MEDIA

            NICKEL SIZED HAIL IN DUCK SPRINGS.

0415 PM     HAIL             HOKES BLUFF             33.99N 85.86W
04/19/2006  E1.00 INCH       ETOWAH             AL   PUBLIC

            QUARTER SIZED HAIL IN HOKES BLUFF.

0418 PM     HAIL             ONEONTA                 33.95N 86.47W
04/19/2006  E1.75 INCH       BLOUNT             AL   FIRE DEPT/RESCUE

            GOLF BALL SIZED HAIL AND MINOR ROOF DAMAG ON 2ND AVENUE
            IN ONEONTA.

0420 PM     HAIL             STROUD                  33.06N 85.33W
04/19/2006  E1.75 INCH       CHAMBERS           AL   EMERGENCY MNGR

            GOLF BALL SIZED HAIL ON HWY 434 FROM FIVE POINTS TO
            STROUD.

0435 PM     HAIL             ONEONTA                 33.95N 86.47W
04/19/2006  E1.75 INCH       BLOUNT             AL   BROADCAST MEDIA

            GOLF BALL SIZED HAIL IN ONEONTA.

&&

DCW

Local storm report, Apr 19, 4:44 PM CDT, 0 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
444 PM CDT WED APR 19 2006

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0430 PM     HAIL             3 NE HOKES BLUFF        34.02N 85.83W
04/19/2006  E0.50 INCH       ETOWAH             AL   BROADCAST MEDIA

            MARBLE SIZED HAIL IN BALL PLAY.

0433 PM     HAIL             ONEONTA                 33.95N 86.47W
04/19/2006  E0.75 INCH       BLOUNT             AL   EMERGENCY MNGR

            PENNY SIZED HAIL IN ONEONTA.

&&

DCW

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 19, 12:13 PM CDT	Severe Thunderstorm Warning	BMX	Cherokee	62 min
Apr 19, 1:11 PM CDT	Severe Thunderstorm Warning	BMX	Cherokee	49 min
Apr 19, 2:00 PM CDT	Severe Thunderstorm Warning	BMX	Cherokee	45 min
Apr 19, 2:17 PM CDT	Severe Thunderstorm Warning	BMX	Calhoun	58 min
Apr 19, 2:18 PM CDT	Severe Thunderstorm Warning	BMX	Etowah	25 min
Apr 19, 2:38 PM CDT	Severe Thunderstorm Warning	BMX	Cleburne	67 min
Apr 19, 3:05 PM CDT	Severe Thunderstorm Warning	BMX	Blount	55 min
Apr 19, 3:05 PM CDT	Severe Thunderstorm Warning	BMX	Randolph	40 min
Apr 19, 3:24 PM CDT	Severe Thunderstorm Warning	BMX	Chambers	66 min
Apr 19, 3:25 PM CDT	Severe Thunderstorm Warning	BMX	Cherokee	50 min
Apr 19, 3:34 PM CDT	Severe Thunderstorm Warning	BMX	Etowah	41 min
Apr 19, 3:38 PM CDT	Severe Thunderstorm Warning	BMX	Randolph	67 min
Apr 19, 3:41 PM CDT	Severe Thunderstorm Warning	BMX	Cleburne	21 min
Apr 19, 3:59 PM CDT	Severe Thunderstorm Warning	BMX	Blount	46 min
Apr 19, 4:06 PM CDT	Severe Thunderstorm Warning	BMX	St. Clair	69 min
Apr 19, 4:15 PM CDT	Severe Thunderstorm Warning	BMX	Etowah	60 min
Apr 19, 4:26 PM CDT	Severe Thunderstorm Warning	BMX	Chambers	49 min
Apr 19, 4:27 PM CDT	Severe Thunderstorm Warning	BMX	Winston	33 min
Apr 19, 4:37 PM CDT	Severe Thunderstorm Warning	BMX	Cherokee	38 min
Apr 19, 4:45 PM CDT	Severe Thunderstorm Warning	BMX	Randolph	30 min
Apr 19, 5:04 PM CDT	Tornado Warning	BMX	St. Clair	56 min
Apr 19, 5:14 PM CDT	Severe Thunderstorm Warning	BMX	Chambers	21 min
Apr 19, 5:47 PM CDT	Severe Thunderstorm Warning	BMX	Calhoun, Talladega	43 min
Apr 19, 5:47 PM CDT	Severe Thunderstorm Warning	BMX	Blount	43 min
Apr 19, 5:55 PM CDT	Flash Flood Warning	BMX	Blount	3 hr
Apr 19, 5:59 PM CDT	Tornado Warning	BMX	St. Clair, Talladega	46 min
Apr 19, 6:26 PM CDT	Severe Thunderstorm Warning	BMX	Clay	64 min
Apr 19, 6:30 PM CDT	Severe Thunderstorm Warning	BMX	Blount	60 min
Apr 19, 6:35 PM CDT	Severe Thunderstorm Warning	BMX	Shelby	40 min
Apr 19, 6:45 PM CDT	Severe Thunderstorm Warning	BMX	Talladega	60 min
Apr 19, 6:49 PM CDT	Severe Thunderstorm Warning	BMX	Jefferson	56 min
Apr 19, 6:57 PM CDT	Severe Thunderstorm Warning	BMX	Walker	20 min

Nearby

Severe Thunderstorm Warnings in Alabama, 2006 Every severe thunderstorm warning in 2006

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.