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Severe Weather Thread: March 25 - March 28


David Reimer

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BULLETIN - EAS ACTIVATION REQUESTED

TORNADO WARNING

NATIONAL WEATHER SERVICE BIRMINGHAM AL

307 PM CDT SAT MAR 26 2011

THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A

* TORNADO WARNING FOR...

WESTERN CHAMBERS COUNTY IN EAST CENTRAL ALABAMA...

CENTRAL TALLAPOOSA COUNTY IN EAST CENTRAL ALABAMA...

* UNTIL 400 PM CDT

* AT 304 PM CDT...THE NATIONAL WEATHER SERVICE INDICATED A SEVERE

THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM

WAS LOCATED NEAR WIND CREEK STATE PARK...OR NEAR ALEXANDER CITY...

AND MOVING EAST AT 35 MPH.

* LOCATIONS IMPACTED INCLUDE...

DADEVILLE...CAMP HILL...JACKSONS' GAP...JACKSONS GAP...WAVERLY...

RIDGE GROVE...TRAMMEL CROSSROADS...WEST CHAMBERS...STURKIE AND OAK

BOWERY.

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BULLETIN - EAS ACTIVATION REQUESTED

TORNADO WARNING

NATIONAL WEATHER SERVICE BIRMINGHAM AL

311 PM CDT SAT MAR 26 2011

THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A

* TORNADO WARNING FOR...

EAST CENTRAL AUTAUGA COUNTY IN CENTRAL ALABAMA...

WESTERN ELMORE COUNTY IN EAST CENTRAL ALABAMA...

* UNTIL 400 PM CDT

* AT 309 PM CDT...THE NATIONAL WEATHER SERVICE INDICATED A SEVERE

THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM

WAS LOCATED NEAR BOOTH...OR 10 MILES NORTHWEST OF PRATTVILLE...AND

MOVING EAST AT 35 MPH.

* LOCATIONS IMPACTED INCLUDE...

MILLBROOK...WETUMPKA...DEATSVILLE...COOSADA...ELMORE...WEOKA

MILLS...TEN CEDAR ESTATES...BLUE RIDGE...DEXTER AND SANTUCK.

THIS INCLUDES...

INTERSTATE 65 EXIT NUMBERS 181 THROUGH 193...

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BULLETIN - EAS ACTIVATION REQUESTED

TORNADO WARNING

NATIONAL WEATHER SERVICE BIRMINGHAM AL

315 PM CDT SAT MAR 26 2011

THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A

* TORNADO WARNING FOR...

NORTHERN CALHOUN COUNTY IN EAST CENTRAL ALABAMA...

SOUTHEASTERN ETOWAH COUNTY IN NORTHEAST ALABAMA...

* UNTIL 345 PM CDT

* AT 312 PM CDT...THE NATIONAL WEATHER SERVICE INDICATED A SEVERE

THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM

WAS LOCATED 6 MILES WEST OF MARKTON...AND MOVING EAST AT 40 MPH.

* LOCATIONS IMPACTED INCLUDE...

MARKTON...JACKSONVILLE...GLENCOE...SOUTHSIDE...COBB CITY AND

REAVES.

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735

WWUS20 KWNS 262029

SEL3

SPC WW 262029

ARZ000-LAZ000-MSZ000-270300-

URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 63

NWS STORM PREDICTION CENTER NORMAN OK

330 PM CDT SAT MAR 26 2011

THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF

PARTS OF SOUTHERN ARKANSAS

PARTS OF NORTHEASTERN LOUISIANA

PARTS OF CENTRAL AND NORTHERN MISSISSIPPI

EFFECTIVE THIS SATURDAY AFTERNOON AND EVENING FROM 330 PM UNTIL

1000 PM CDT.

TORNADOES...HAIL TO 3 INCHES IN DIAMETER...THUNDERSTORM WIND

GUSTS TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE

AREAS.

THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 50 STATUTE

MILES NORTH AND SOUTH OF A LINE FROM 35 MILES SOUTH OF EL DORADO

ARKANSAS TO 20 MILES EAST NORTHEAST OF COLUMBUS MISSISSIPPI. FOR

A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH

OUTLINE UPDATE (WOUS64 KWNS WOU3).

REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR

TORNADOES AND SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH

AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR

THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS

AND POSSIBLE WARNINGS.

OTHER WATCH INFORMATION...CONTINUE...WW 62...

DISCUSSION...AHEAD OF THE COLD FRONT ACROSS NWRN MS AND SRN AR THE

AIR MASS HAS BECOME QUITE UNSTABLE WITH MLCAPES AOA 2500 J/KG WITH

LITTLE REMAINING CINH. THUNDERSTORMS EXPECTED TO DEVELOP RAPIDLY

ALONG AND JUST AHEAD OF THE COLD FRONT AS IT MOVES SEWD THRU THE

WATCH. 40-50 KT OF DEEP LAYER SHEAR AND STEEP LAPSE RATES FAVOR

SUPERCELL POTENTIAL. IN ADDITION TO VERY LARGE HAIL THERE IS A

TORNADO THREAT WITH ANY SUPERCELL THAT FORMS.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL

SURFACE AND ALOFT TO 3 INCHES. EXTREME TURBULENCE AND SURFACE

WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO

500. MEAN STORM MOTION VECTOR 27030.

...HALES

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Funnel cloud/wall cloud reported by Gabrielson.

TORNADO WARNING

NATIONAL WEATHER SERVICE BIRMINGHAM AL

407 PM CDT SAT MAR 26 2011

THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A

* TORNADO WARNING FOR...

NORTH CENTRAL CHILTON COUNTY IN CENTRAL ALABAMA...

SOUTHERN SHELBY COUNTY IN CENTRAL ALABAMA...

* UNTIL 445 PM CDT

* AT 403 PM CDT...THE NATIONAL WEATHER SERVICE INDICATED A SEVERE

THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM

WAS LOCATED 6 MILES NORTHWEST OF WILTON...OR 7 MILES WEST OF

MONTEVALLO...AND MOVING EAST AT 30 MPH.

* LOCATIONS IMPACTED INCLUDE...

MONTEVALLO...CALERA...COLUMBIANA...WILTON...UNIVERSITY OF

MONTEVALLO...MAYLENE...AMERICAN VILLAGE...SHELBY COUNTY AIRPORT...

MINOOKA PARK AND CAMP BRANCH.

THIS INCLUDES...

INTERSTATE 65 EXIT NUMBERS 228 THROUGH 234...

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Funnel cloud/wall cloud reported by Gabrielson.

TORNADO WARNING

NATIONAL WEATHER SERVICE BIRMINGHAM AL

407 PM CDT SAT MAR 26 2011

THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A

* TORNADO WARNING FOR...

NORTH CENTRAL CHILTON COUNTY IN CENTRAL ALABAMA...

SOUTHERN SHELBY COUNTY IN CENTRAL ALABAMA...

* UNTIL 445 PM CDT

* AT 403 PM CDT...THE NATIONAL WEATHER SERVICE INDICATED A SEVERE

THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM

WAS LOCATED 6 MILES NORTHWEST OF WILTON...OR 7 MILES WEST OF

MONTEVALLO...AND MOVING EAST AT 30 MPH.

* LOCATIONS IMPACTED INCLUDE...

MONTEVALLO...CALERA...COLUMBIANA...WILTON...UNIVERSITY OF

MONTEVALLO...MAYLENE...AMERICAN VILLAGE...SHELBY COUNTY AIRPORT...

MINOOKA PARK AND CAMP BRANCH.

THIS INCLUDES...

INTERSTATE 65 EXIT NUMBERS 228 THROUGH 234...

http://www.severestudios.com/cgi-bin/player.pl?username=john.brown&uid=265

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SEVERE WEATHER STATEMENT

NATIONAL WEATHER SERVICE BIRMINGHAM AL

428 PM CDT SAT MAR 26 2011

ALC021-117-262145-

/O.CON.KBMX.TO.W.0022.000000T0000Z-110326T2145Z/

CHILTON AL-SHELBY AL-

428 PM CDT SAT MAR 26 2011

...A TORNADO WARNING REMAINS IN EFFECT FOR SOUTH CENTRAL SHELBY AND

NORTH CENTRAL CHILTON COUNTIES UNTIL 445 PM CDT...

AT 424 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A

SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS

STORM WAS LOCATED NEAR CALERA...MOVING EAST AT 30 MPH.

AT 425 PM...A FUNNEL CLOUD WAS REPORTED NEAR I-65 AND AL-25...IN

CALERA.

LOCATIONS IMPACTED INCLUDE...

COLUMBIANA...SHELBY...WAXAHATCHEE AT LAY LAKE...AL 145 AND CR 46...

SPRING CREEK AT LAY LAKE AND BEESWAX AT LAY LAKE.

THIS INCLUDES...

INTERSTATE 65 EXIT NUMBERS 228 THROUGH 231...

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I think this shows the difference between CINH and a cap someone was trying to explain to me day before yesterday, although I sort of see the low surface dewpoint and the high LFC, I don't quite get the 'why/how' difference down.

Storms in Texas West of Austin can't seem to maintain coming off the dryline. Maybe one exception. Dryline seems to be retreating.

GRK_loop.gif

post-138-0-33362600-1301180249.gif

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MESOSCALE DISCUSSION 0283

NWS STORM PREDICTION CENTER NORMAN OK

0603 PM CDT SAT MAR 26 2011

AREAS AFFECTED...NERN MS AND NRN AL

CONCERNING...SEVERE POTENTIAL...WATCH POSSIBLE

VALID 262303Z - 262330Z

A NEW WW MAY BE NEEDED DURING THE EARLY EVENING ACROSS MAINLY NRN

AL.

LATE AFTERNOON SURFACE ANALYSES SHOWED AN AREA OF LOW PRESSURE HAD

FORMED AND WAS TRACKING EWD INTO EXTREME NWRN AL ALONG A SURFACE

BOUNDARY WHICH EXTENDED E THEN SE AS A WARM FRONT INTO NRN TO ERN

AL. MEANWHILE...A COLD FRONT TRAILING SWWD FROM THE AL LOW WAS

MOVING SLOWLY SWD THROUGH NERN-WEST CENTRAL MS. OF PARTICULAR

CONCERN FOR NEW TSTM DEVELOPMENT IS THE RECENT DESTABILIZATION OF

THE AIR MASS ACROSS NRN AL WHERE LATE DAY SURFACE HEATING/LOW LEVEL

MOISTURE ADVECTION HAS OCCURRED AS SURFACE WINDS HAVE BECOME SSWLY

WITH THE NWD MOVEMENT OF THE WARM FRONT. OBJECTIVE ANALYSES

INDICATED THE WARM SECTOR IS MODERATELY UNSTABLE WITH MLCAPE

1000-2000 J/KG.

THE COVERAGE/INTENSITY...PER REGIONAL RADAR IMAGERY...OF ELEVATED

TSTMS ONGOING FROM SRN MIDDLE TN TO FAR NRN MS SUGGESTS THE FORCING

FOR ASCENT ATTENDANT TO A SHORTWAVE TROUGH TRACKING INTO THE OH

VALLEY/ENTRANCE REGION OF 70 KT WLY MIDLEVEL JET IS SUFFICIENTLY

STRONG. THUS...AS THIS FORCING PROGRESSES EWD ACROSS THE NRN EXTENT

OF THE WARM SECTOR...CELLS ALREADY DEVELOPING ALONG THE COLD FRONT

IN NERN MS AND THE WARM FRONT OVER NORTH CENTRAL AL SHOULD BECOME

MORE ROBUST. EFFECTIVE BULK SHEAR AROUND 50 KT AND ENHANCED LOW

LEVEL SHEAR /EFFECTIVE SRH 200-300 M2 PER S2/ WILL SUPPORT

SUPERCELLS WITH AN ATTENDANT TORNADO AND LARGE HAIL POTENTIAL.

..PETERS.. 03/26/2011

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BULLETIN - EAS ACTIVATION REQUESTED

TORNADO WARNING

NATIONAL WEATHER SERVICE TALLAHASSEE FL

710 PM EDT SAT MAR 26 2011

THE NATIONAL WEATHER SERVICE IN TALLAHASSEE HAS ISSUED A

* TORNADO WARNING FOR...

NORTHERN RANDOLPH COUNTY IN SOUTHWEST GEORGIA...

NORTHWESTERN TERRELL COUNTY IN SOUTHWEST GEORGIA...

* UNTIL 800 PM EDT

* AT 707 PM EDT...A DEVELOPING TORNADO HAS BEEN DETECTED BY THE

NATIONAL WEATHER SERVICE NEAR SPRINGVALE...OR 14 MILES SOUTH OF

LUMPKIN...MOVING EAST AT 25 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO WHITE

HOUSE...WADES...BENEVOLENCE...BROOKSVILLE AND CHAMBLISS

THIS STORM HAS HAD A HISTORY OF PRODUCING A TORNADO WHILE IN QUITMAN

COUNTY. TAKE COVER NOW! MOVE TO A HALLWAY OR CLOSET ON THE LOWEST

FLOOR AWAY FROM WINDOWS AND OUTSIDE WALLS.

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We get supercells in a CAPE and helicity-rich environment and we still can't get tornadoes. This year blows for severe wx. :x

The lack of turning in the low levels really helped keep the tornado threat down...alot of nice supercell presentations on radar but not much in the way of strong rotation.

Even though its only 7pm and this event isn't over, it could of been alot worse with better directional shear/backed sfc winds.

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BULLETIN - EAS ACTIVATION REQUESTED

TORNADO WARNING

NATIONAL WEATHER SERVICE BIRMINGHAM AL

648 PM CDT SAT MAR 26 2011

THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A

* TORNADO WARNING FOR...

NORTHWESTERN FAYETTE COUNTY IN WEST CENTRAL ALABAMA...

NORTHERN LAMAR COUNTY IN WEST CENTRAL ALABAMA...

SOUTHERN MARION COUNTY IN NORTHWEST ALABAMA...

* UNTIL 730 PM CDT

* AT 644 PM CDT...TRAINED WEATHER SPOTTERS REPORTED A FUNNEL CLOUD

NEAR DETROIT...OR 10 MILES NORTH OF SULLIGENT. A TORNADO MAY

DEVELOP AT ANY TIME. DOPPLER RADAR SHOWED THIS DANGEROUS STORM

MOVING EAST AT 40 MPH.

* LOCATIONS IMPACTED INCLUDE...

WINFIELD...CREWS...BEAVERTON...GUIN...GU-WIN...BRILLIANT...GLEN

ALLEN...LAKE BUTTAHATCHEE...HENSON SPRINGS AND RANKIN FITE AIRPORT.

THIS INCLUDES...

US 78 EXIT NUMBERS 14 THROUGH 34...

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The lack of turning in the low levels really helped keep the tornado threat down...alot of nice supercell presentations on radar but not much in the way of strong rotation.

Even though its only 7pm and this event isn't over, it could of been alot more with better directional shear/backed sfc winds.

That's defin true... forecast hodographs never rly looked that good. Good supercells though today. Kinda reminded me of Mar 15 in 2008, without the big outbreak of course.

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GAC021-153-289-319-270045-

/O.CON.KFFC.TO.W.0013.000000T0000Z-110327T0045Z/

TWIGGS GA-WILKINSON GA-BIBB GA-HOUSTON GA-

819 PM EDT SAT MAR 26 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 845 PM EDT FOR

NORTHEASTERN HOUSTON...SOUTHEASTERN BIBB...WEST CENTRAL WILKINSON AND

CENTRAL TWIGGS COUNTIES...

AT 813 PM EDT...TRAINED WEATHER SPOTTERS REPORTED A TORNADO.

THIS TORNADO WAS LOCATED NEAR CENTERVILLE...MOVING EAST AT 30 MPH.

MOVE TO A SAFE PLACE NOW!

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO WARNER

ROBINS...ELBERTA...ROBINS AIR FORCE BASE...HUBER...BULLARD...

FITZPATRICK...MARION...RIPLEY...DISTRICT PATH...MYRICKS MILL AND

JEFFERSONVILLE.

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