Historic Multi Day Tornado/Flooding Event 4/23-28/2011

[CrazyC83]

MESOSCALE DISCUSSION 0597
NWS STORM PREDICTION CENTER NORMAN OK
0359 PM CDT TUE APR 26 2011

AREAS AFFECTED...NORTH-CENTRAL/NORTHEAST TX AND FAR SOUTHEAST OK TO
CENTRAL/SOUTHERN AR AND NORTHERN LA

CONCERNING...TORNADO WATCH 215...

VALID 262059Z - 262230Z

THE SEVERE WEATHER THREAT FOR TORNADO WATCH 215 CONTINUES.

PARTICULARLY DANGEROUS /PDS/ TORNADO WATCH 215 CONTINUES UNTIL 03Z
FOR PORTIONS OF NORTH-CENTRAL/NORTHEAST TX AND FAR SOUTHEAST OK TO
CENTRAL/SOUTHERN AR AND NORTHERN LA. LARGE HAIL AND TORNADOES WILL
REMAIN A CONCERN...WITH THE TORNADO THREAT /INCLUDING THE
POSSIBILITY OF STRONG TORNADOES/ EXPECTED TO STEADILY INCREASE
TOWARD/AFTER DARK.

SCATTERED STRONG/SEVERE TSTMS INCLUDING SUPERCELLS CONTINUE TO
DEVELOP FROM THE SOUTH SIDE OF THE DFW METRO NORTHEAST INTO SOUTHERN
AR. THE RELATIVELY VOLATILE WARM/MOIST SECTOR MAY CONTINUE TO RETURN
NORTHWARD A DEGREE ACROSS NORTH-CENTRAL TX/TOWARD THE RED RIVER IN
RESPONSE TO UPSTREAM HEIGHT FALLS/LARGE SCALE FORCING...WITH THE
ARRIVAL OF MORE APPRECIABLE DEEP ASCENT /CURRENTLY ACROSS NORTHWEST
TX/ LIKELY TO CONTRIBUTE TO AN UPSWING IN VIGOROUS DEEP CONVECTION
BY THIS EVENING. WITH RIGHT MOVING SUPERCELL MOTIONS LARGELY
PARALLEL TO THE SOUTHWEST-NORTHEAST ORIENTED FRONTAL BOUNDARY...THE
MOST CONCENTRATED SEVERE/TORNADO THREAT SHOULD REMAIN FROM NEAR THE
DFW METRO INTO SOUTHERN AR...LARGELY PARALLEL TO/SOUTHEAST OF I-30.
THE THREAT FOR STRONG TORNADOES IS EXPECTED TO STEADILY INCREASE
INTO THIS EVENING...ACCENTUATED BY AN INCREASINGLY STRONG LOW LEVEL
JET WITH A CONSEQUENTIAL INCREASE IN LOW LEVEL HODOGRAPH
CURVATURE/LENGTH.

..GUYER.. 04/26/2011


ATTN...WFO...LZK...SHV...TSA...HGX...FWD...OUN...

LAT...LON 31929774 33479752 34439374 34609203 32829220 31749498
30559716 31929774

[badger70]

http://www.wfaa.com/news8now

Danke sehr. WFAA radar just showed 6 (!) mesos near the Ennis area.

Also, couplet is very well defined on NWS vel as of...10 minutes ago.

[WeatherGuesser]

Bust risk ?

Guess not.

[srainhoutx]

Strong TVS sig on Ennis storm.

[Bunkertor]

Florida Panhandle - cap is done, but medium shear

[badger70]

Strong TVS sig on Ennis storm.

WFAA met said 120 kt g2g.

[brunota2003]

Yep...there was a nice couplet on that cell that produced the tornado near Rome, NY earlier...it is still tornado warned, moving toward Lake Pleasant. Today's activity doesn't worry me here in NY, it is tomorrow when things could get bad.

[Bunkertor]

AR wtf - they just prompted ~3 or 4 TOR simultanously

[CrazyC83]

MESOSCALE DISCUSSION 0598
NWS STORM PREDICTION CENTER NORMAN OK
0438 PM CDT TUE APR 26 2011

AREAS AFFECTED...SERN IL...SRN IN...PORTIONS OF NRN KY

CONCERNING...SEVERE POTENTIAL...WATCH NEEDED SOON

VALID 262138Z - 262215Z

SUPERCELL OVER WRN KY MOVING NEWD WILL APPROACH THE OH RIVER VALLEY
SHORTLY...OUT OF WW 217. ENVIRONMENT DOWNSTREAM ACROSS SERN IL...SRN
IN...AND PORTIONS OF NRN KY REMAINS FAVORABLE FOR POTENTIAL
TORNADOES...LARGE HAIL...AND DMGG WINDS. TORNADO WATCH WILL BE
COORDINATED WITH LOCAL WFOS SHORTLY.

..ROGERS.. 04/26/2011


ATTN...WFO...ILN...LMK...IND...PAH...ILX...

LAT...LON 37748621 37768878 39508792 39488473 37718570 37748621

[CrazyC83]

SEL9

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 219
NWS STORM PREDICTION CENTER NORMAN OK
450 PM CDT TUE APR 26 2011

THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF

PARTS OF SOUTHEAST ILLINOIS
MUCH OF SOUTHERN INDIANA
PARTS OF NORTHERN KENTUCKY

EFFECTIVE THIS TUESDAY AFTERNOON AND EVENING FROM 450 PM UNTIL
1000 PM CDT.

TORNADOES...HAIL TO 2 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 75 STATUTE
MILES EAST AND WEST OF A LINE FROM 25 MILES NORTHEAST OF
BLOOMINGTON INDIANA TO 30 MILES SOUTHEAST OF EVANSVILLE INDIANA.
FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
OUTLINE UPDATE (WOUS64 KWNS WOU9).

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 213...WW 214...WW
215...WW 216...WW 217...WW 218...

DISCUSSION...DEVELOPING SEVERE THUNDERSTORMS WRN KY WILL CONTINUE
RAPIDLY NEWD ACROSS THE WATCH AREA. WITH STRONG VEERING SHEAR
PROFILES AND MDT INSTABILITY...SUPERCELLS INCLUDING LARGE HAIL AND
POSSIBLE TORNADOS WILL DEVELOP NEWD ACROSS THE WATCH AREA.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 2 INCHES. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
500. MEAN STORM MOTION VECTOR 23035.


...HALES

[CrazyC83]

Full text still coming but not PDS it appears. Probs appear to be around 70/40 based on test details. Awaiting final details.

UPDATE: Probs 50/30.

SEL0

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 220
NWS STORM PREDICTION CENTER NORMAN OK
455 PM CDT TUE APR 26 2011

THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF

CENTRAL AND WESTERN LOUISIANA
SOUTH-CENTRAL AND SOUTHEAST TEXAS

EFFECTIVE THIS TUESDAY AFTERNOON AND EVENING FROM 455 PM UNTIL
1000 PM CDT.

TORNADOES...HAIL TO 4 INCHES IN DIAMETER...THUNDERSTORM WIND
GUSTS TO 75 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 10 MILES SOUTHWEST OF AUSTIN
TEXAS TO 30 MILES NORTHEAST OF ALEXANDRIA LOUISIANA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE
UPDATE (WOUS64 KWNS WOU0).

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 213...WW 214...WW
215...WW 216...WW 217...WW 218...WW 219...

DISCUSSION...DEEP-LAYER WIND PROFILES AND FAVORABLY LARGE BUOYANCY
SUPPORT POTENTIAL FOR SVR TSTMS -- INCLUDING SUPERCELLS ALREADY
OCCURRING OVER SRN PORTIONS WW 215 BETWEEN ACT-LFK AND POTENTIAL
DEVELOPMENT FARTHER W ALONG DRYLINE -- TO AFFECT WW AREA LATE
AFTERNOON THROUGH EVENING.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 4 INCHES. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 65 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
650. MEAN STORM MOTION VECTOR 26030.


...EDWARDS/HALES

[CrazyC83]

So far, they have only found EF2 in Vilonia, but still awaiting more surveys.

EF2 seems highly unlikely unless it was a town filled with nothing but mobile homes. I'd say AT LEAST a strong EF3.

[apocalypt-flyer]

Wow, things are REALLY kicking up in Arkansas and Texas right now.

Scary stuff.

[Bunkertor]

223
WFUS53 KLMK 262232
TORLMK
KYC183-262300-
/O.NEW.KLMK.TO.W.0070.110426T2232Z-110426T2300Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE LOUISVILLE KY
532 PM CDT TUE APR 26 2011

THE NATIONAL WEATHER SERVICE IN LOUISVILLE HAS ISSUED A

* TORNADO WARNING FOR...
WESTERN OHIO COUNTY IN NORTHWEST KENTUCKY...

* UNTIL 600 PM CDT...

* AT 528 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
STORM WAS LOCATED 7 MILES WEST OF KIRTLEY...MOVING EAST AT 40 MPH.

* THIS TORNADIC STORM W I L L ALSO IMPACT...
HARTFORD...
KIRTLEY AND MATANZAS...
CENTERTOWN AND CERALVO...
NO CREEK AND MCHENRY...
BEAVER DAM...

[TwisterFanatic]

Rotating Wall Cloud heading straight toward downtown Ft. Smith, Arkansas right now.

[Bunkertor]

Little recap

[CrazyC83]

WWUS54 KSHV 262315
SVSSHV

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SHREVEPORT LA
615 PM CDT TUE APR 26 2011

TXC423-262330-
/O.CON.KSHV.TO.W.0037.000000T0000Z-110426T2330Z/
SMITH TX-
615 PM CDT TUE APR 26 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 630 PM CDT FOR SMITH
COUNTY...

AT 611 PM CDT...A TORNADO WAS REPORTED. THIS TORNADO WAS LOCATED
NEAR CARROLL...OR 13 MILES SOUTH OF MINEOLA...MOVING EAST AT 30 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO LINDALE
AND RED SPRINGS

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WARNING MEANS THAT STRONG ROTATION HAS BEEN DETECTED IN THE
STORM. A TORNADO MAY ALREADY BE ON THE GROUND...OR IS EXPECTED TO
DEVELOP SHORTLY. IF YOU ARE IN THE PATH OF THIS DANGEROUS STORM...
MOVE INDOORS AND TO THE LOWEST LEVEL OF THE BUILDING. STAY AWAY FROM
WINDOWS. IF DRIVING...DO NOT SEEK SHELTER UNDER A HIGHWAY OVERPASS.

&&

LAT...LON 3269 9559 3265 9553 3262 9550 3260 9532
3257 9528 3257 9525 3255 9522 3236 9510
3234 9545 3248 9560
TIME...MOT...LOC 2315Z 252DEG 24KT 3248 9546

$$

ELEVEN

[Jag95]

Tornado warning for Memphis!

TORNADO WARNING
ARC035-TNC157-270015-
/O.NEW.KMEG.TO.W.0070.110426T2309Z-110427T0015Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MEMPHIS TN
609 PM CDT TUE APR 26 2011

THE NATIONAL WEATHER SERVICE IN MEMPHIS HAS ISSUED A

* TORNADO WARNING FOR...
EAST CENTRAL CRITTENDEN COUNTY IN EASTERN ARKANSAS...
WESTERN SHELBY COUNTY IN SOUTHWEST TENNESSEE...

* UNTIL 715 PM CDT

* AT 610 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
A TORNADO NEAR WEST MEMPHIS...OR NEAR MARION...MOVING EAST AT 20
MPH.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO SUNSET...
WEST MEMPHIS...DOWNTOWN MEMPHIS...FRAYSER...MIDTOWN MEMPHIS AND
MEEMAN SHELBY FOREST STATE PARK.

THIS WARNING ALSO INCLUDES AREAS NEAR LAKE MCKELLAR.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

.HEAVY RAINFALL MAY HIDE THIS TORNADO. DO NOT WAIT TO SEE OR HEAR THE
TORNADO. TAKE COVER NOW.

&&

LAT...LON 3539 9000 3539 8993 3509 8984 3509 9018
3532 9023
TIME...MOT...LOC 2310Z 250DEG 17KT 3517 9026

$$

[CrazyC83]

WWUS54 KFWD 262319
SVSFWD

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE FORT WORTH TX
619 PM CDT TUE APR 26 2011

TXC213-257-467-262330-
/O.CON.KFWD.TO.W.0051.000000T0000Z-110426T2330Z/
VAN ZANDT TX-KAUFMAN TX-HENDERSON TX-
619 PM CDT TUE APR 26 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 630 PM CDT FOR NORTHERN
HENDERSON...SOUTHEASTERN KAUFMAN AND SOUTHERN VAN ZANDT COUNTIES...

AT 619 PM CDT...STORM SPOTTERS AND DOPPLER RADAR OBSERVED A TORNADO.
THIS TORNADO WAS LOCATED NEAR PURTIS CREEK STATE PARK...MOVING EAST
AT 25 MPH. IF YOU ARE IN THE PATH OF THIS TORNADO...TAKE COVER NOW!!

THE TORNADO WILL BE NEAR...
RURAL SOUTHERN VAN ZANDT COUNTY AT 630 PM CDT
RURAL NORTHERN HENDERSON COUNTY AT 630 PM CDT

THIS WILL IMPACT I-20 BETWEEN MILE MARKERS 530 AND 542.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT TUESDAY EVENING
FOR EASTERN TEXAS.

&&

LAT...LON 3223 9559 3225 9596 3231 9622 3248 9615
3256 9609 3255 9559 3247 9558
TIME...MOT...LOC 2319Z 269DEG 23KT 3236 9599

$$

[HurricaneBill]

2303 1 N PRIMROSE VAN ZANDT TX 3244 9560 MULTI VORTEX TORNADO (FWD)