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Historic Tornado Outbreak April 27, 2011


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Can someone explain to me what exactly a debris ball is? I know how to identify them (well, they're pretty easy to spot), but I don't understand what exactly they are. Thanks.

Radar deflecting off of debris aloft. It's typically an area of extremely high reflectivity located near the hook. (mostly on the south side)

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Can someone explain to me what exactly a debris ball is? I know how to identify them (well, they're pretty easy to spot), but I don't understand what exactly they are. Thanks.

The radar beams bounce off of rain drops and the reflectivity shows on the radar. The same thing happens when there's debris, it's the radar beam bouncing off of that.

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I want to reiterate that the coverage out of ABC 33/40 today has been outstanding, and their message has probably saved many lives.

I especially like (and appreciate) how Spann reiterated not to trust any storm today. That if any thunder was headed your way to take cover, not just the tornado warned ones.

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SEVERE WEATHER STATEMENT

NATIONAL WEATHER SERVICE BIRMINGHAM AL

658 PM CDT WED APR 27 2011

ALC007-021-117-121-280045-

/O.CON.KBMX.TO.W.0121.000000T0000Z-110428T0045Z/

CHILTON AL-BIBB AL-SHELBY AL-TALLADEGA AL-

658 PM CDT WED APR 27 2011

...A TORNADO WARNING REMAINS IN EFFECT FOR SOUTHWESTERN TALLADEGA...

SHELBY...NORTHEASTERN BIBB AND NORTH CENTRAL CHILTON COUNTIES UNTIL

745 PM CDT...

...TORNADO EMERGENCY CONTINUES FOR MAYLENE...ALABASTER...SHELBY

COUNTY AIRPORT AND SOUTHERN HELENA AND SOUTH PELHAM...TAKE COVER

IMMEDIATELY! DO NOT WAIT!

AT 655 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR AND STORM

SPOTTERS WERE TRACKING A LARGE AND EXTREMELY DANGEROUS TORNADO. THIS

TORNADO WAS LOCATED 8 MILES NORTHWEST OF WILTON...OR 8 MILES WEST OF

MONTEVALLO...MOVING NORTHEAST AT 50 MPH.

LOCATIONS IMPACTED INCLUDE...

MONTEVALLO...CALERA...ALABASTER...HELENA...PELHAM...COLUMBIANA...

CHELSEA...TALLADEGA SPRINGS...WILSONVILLE AND CHILDERSBURG.

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..And another TORE

SEVERE WEATHER STATEMENT

NATIONAL WEATHER SERVICE JACKSON MS

658 PM CDT WED APR 27 2011

MSC023-075-280015-

/O.CON.KJAN.TO.W.0162.000000T0000Z-110428T0015Z/

CLARKE MS-LAUDERDALE MS-

658 PM CDT WED APR 27 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 715 PM CDT FOR

SOUTHEASTERN LAUDERDALE AND NORTHEASTERN CLARKE COUNTIES...

...THIS IS A TORNADO EMERGENCY FOR THE WARNED AREA...

AT 658 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS AND STORM

SPOTTERS WERE TRACKING A LARGE AND EXTREMELY DANGEROUS TORNADO. THIS

TORNADO WAS LOCATED NEAR MIDDLETON MOVING EAST AT 45 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO

INCREASE AND SNELL

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SEVERE WEATHER STATEMENT

NATIONAL WEATHER SERVICE MOBILE AL

659 PM CDT WED APR 27 2011

ALC023-280030-

/O.CON.KMOB.TO.W.0085.000000T0000Z-110428T0030Z/

CHOCTAW AL-

659 PM CDT WED APR 27 2011

...THIS IS A TORNADO EMERGENCY...

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 730 PM CDT FOR NORTHERN

CHOCTAW COUNTY...

AT 656 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR AND STORM

SPOTTERS WERE TRACKING A LARGE AND EXTREMELY DANGEROUS TORNADO. THIS

TORNADO WAS 13 MILES WEST OF CYRIL...OR ABOUT 11 MILES NORTHEAST OF

QUITMAN...MOVING EAST AT 35 MPH.

THE TORNADO WILL BE NEAR...

CYRIL AND YANTLEY AROUND 715 PM CDT...

PUSHMATAHA AROUND 720 PM CDT...

LISMAN...RIDERWOOD...CROMWELL AND MOLLIE AROUND 725 PM CDT...

THIS TORNADO HAS RESULTED IN LOSS OF LIFE AND PROPERTY DAMAGE NEAR

ENTERPRISE MISSISSIPPI.

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TORE For the cycled through Tuscaloosa-Birmingham cell

SEVERE WEATHER STATEMENT

NATIONAL WEATHER SERVICE BIRMINGHAM AL

705 PM CDT WED APR 27 2011

ALC015-055-115-280045-

/O.CON.KBMX.TO.W.0122.000000T0000Z-110428T0045Z/

CALHOUN AL-ST. CLAIR AL-ETOWAH AL-

705 PM CDT WED APR 27 2011

...A TORNADO WARNING REMAINS IN EFFECT FOR ETOWAH...NORTHEASTERN ST.

CLAIR AND NORTHWESTERN CALHOUN COUNTIES UNTIL 745 PM CDT...

...TORNADO EMERGENCY FOR NORTHERN ST. CLAIR...NORTHWESTERN CALHOUN

COUNTY...AND SOUTHERN ETOWAH COUNTY...

AT 659 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A

CONFIRMED TORNADO. THIS TORNADO WAS LOCATED NEAR RAGLAND...OR 8

MILES SOUTHWEST OF MARKTON...MOVING NORTHEAST AT 55 MPH.

THIS TORNADO WILL BE NEAR...

MARKTON...RAINBOW CITY...8 MILES SOUTHEAST OF GADSDEN MALL AND 9

MILES SOUTHEAST OF GADSDEN AROUND 710 PM CDT.

GLENCOE AROUND 715 PM CDT.

HOKES BLUFF AROUND 720 PM CDT.

OTHER LOCATIONS IMPACTED BY THIS TORNADO INCLUDE COBB CITY.

THIS INCLUDES...

INTERSTATE 59 EXIT NUMBERS 174 THROUGH 188...

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