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CUmet

Historic Tornado Outbreak April 27, 2011

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Ouch...

BULLETIN - EAS ACTIVATION REQUESTED

TORNADO WARNING

NATIONAL WEATHER SERVICE MEMPHIS TN

137 PM CDT WED APR 27 2011

THE NATIONAL WEATHER SERVICE IN MEMPHIS HAS ISSUED A

* TORNADO WARNING FOR...

NORTHWESTERN CALHOUN COUNTY IN NORTHEAST MISSISSIPPI...

NORTHWESTERN ITAWAMBA COUNTY IN NORTHEAST MISSISSIPPI...

NORTHERN LEE COUNTY IN NORTHEAST MISSISSIPPI...

PONTOTOC COUNTY IN NORTHEAST MISSISSIPPI...

WESTERN PRENTISS COUNTY IN NORTHEAST MISSISSIPPI...

SOUTHEASTERN TIPPAH COUNTY IN NORTHEAST MISSISSIPPI...

UNION COUNTY IN NORTHEAST MISSISSIPPI...

SOUTHERN LAFAYETTE COUNTY IN NORTHWEST MISSISSIPPI...

NORTHEASTERN YALOBUSHA COUNTY IN NORTHWEST MISSISSIPPI...

* UNTIL 230 PM CDT

* AT 136 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A

SEVERE THUNDERSTORM PRODUCING A TORNADO NEAR WATER VALLEY...MOVING

NORTHEAST AT 60 MPH. AT 115 PM...GRAPEFRUIT SIZE HAIL WAS REPORTED

IN BATESVILLE.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO BALDWYN...

BOONEVILLE...NEW ALBANY...PONTOTOC...WATER VALLEY AND TRACE STATE

PARK.

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URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 235

NWS STORM PREDICTION CENTER NORMAN OK

145 PM CDT WED APR 27 2011

THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF

MUCH OF ALABAMA

NORTHWEST GEORGIA

SOUTHEAST MISSISSIPPI

SOUTHERN MIDDLE TENNESSEE

EFFECTIVE THIS WEDNESDAY AFTERNOON AND EVENING FROM 145 PM UNTIL

1000 PM CDT.

...THIS IS A PARTICULARLY DANGEROUS SITUATION...

NUMEROUS TORNADOES

INTENSE TORNADOES LIKELY

WIDESPREAD DAMAGING WINDS

WIND GUSTS TO 80 MPH LIKELY

WIDESPREAD LARGE HAIL

HAIL TO 4.0 INCHES IN DIAMETER LIKELY

THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 80 STATUTE

MILES EAST AND WEST OF A LINE FROM 45 MILES NORTHEAST OF

HUNTSVILLE ALABAMA TO 60 MILES WEST SOUTHWEST OF EVERGREEN

ALABAMA. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU5).

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 230...WW 231...WW

232...WW 233...WW 234...

DISCUSSION...A CLASSIC TORNADO OUTBREAK SITUATION IS DEVELOPING

ACROSS MUCH OF AL AS DISCRETE TORNADIC SUPERCELLS FORM OVER MS AND

TRACK ACROSS THE WATCH AREA. STRONG LOW LEVEL AND DEEP LAYER

VERTICAL SHEAR...COMBINED WITH A MOIST AND MODERATELY UNSTABLE AIR

MASS...WILL POSE A DANGEROUS RISK OF STRONG/VIOLENT AND POTENTIALLY

LONG-TRACK TORNADOES.

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

SURFACE AND ALOFT TO 4 INCHES. EXTREME TURBULENCE AND SURFACE

WIND GUSTS TO 70 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO

500. MEAN STORM MOTION VECTOR 25040.

...HART

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150 kts G2G at 6000 feet AGL. NWS saying they see debris, per WTVA, and the BWER has filled in.

Spoke to a friend that lives in Oxford, apparently there is a small town right where the highway splits. His cable internet went out and satellite before the storm hit.

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Spoke to a friend that lives in Oxford, apparently there is a small town right where the highway splits. His cable internet went out and satellite before the storm hit.

0153 PM TORNADO OXFORD 34.36N 89.53W

04/27/2011 LAFAYETTE MS FIRE DEPT/RESCUE

TORNADO TOUCHDOWN WITH DAMAGE. EXTENT UNKNOWN. COUNTY

ROADS 369 AND 469 SOUTH OF OXFORD.

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SEVERE WEATHER STATEMENT

NATIONAL WEATHER SERVICE MEMPHIS TN

200 PM CDT WED APR 27 2011

MSC013-057-071-081-115-117-139-145-161-271930-

/O.CON.KMEG.TO.W.0115.000000T0000Z-110427T1930Z/

TIPPAH MS-PRENTISS MS-UNION MS-LAFAYETTE MS-LEE MS-ITAWAMBA MS-

PONTOTOC MS-YALOBUSHA MS-CALHOUN MS-

200 PM CDT WED APR 27 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 230 PM CDT FOR

NORTHWESTERN CALHOUN...NORTHEASTERN YALOBUSHA...PONTOTOC...

NORTHWESTERN ITAWAMBA...NORTHERN LEE...SOUTHERN LAFAYETTE...UNION...

WESTERN PRENTISS AND SOUTHEASTERN TIPPAH COUNTIES...

AT 140 PM CDT...FIRE DEPARTMENT REPORTED A TORNADO ON THE GROUND

NEAR COUNTY ROAD 369 AND COUNTY ROAD 469 IN SOUTHERN LAFAYETTE

COUNTY.

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The cells firing along the prefrontal confluence line in central MS are likely to emerge as the main show over the next several hours. They are moving into a very unstable environment, and have access to the backed surface wind field.

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Going across areas that were hit this morning.

BULLETIN - EAS ACTIVATION REQUESTED

TORNADO WARNING

NATIONAL WEATHER SERVICE HUNTSVILLE AL

209 PM CDT WED APR 27 2011

THE NATIONAL WEATHER SERVICE IN HUNTSVILLE HAS ISSUED A

* TORNADO WARNING FOR...

SOUTHERN LIMESTONE COUNTY IN NORTH CENTRAL ALABAMA...

NORTHWESTERN MORGAN COUNTY IN NORTH CENTRAL ALABAMA...

EAST CENTRAL LAWRENCE COUNTY IN NORTHWEST ALABAMA...

* UNTIL 245 PM CDT

* AT 208 PM CDT...TRAINED WEATHER SPOTTERS REPORTED A TORNADO NEAR

CADDO...OR ABOUT 8 MILES NORTHEAST OF MOULTON...MOVING NORTHEAST AT

45 MPH.

* LOCATIONS NEAR THE PATH OF THIS TORNADO INCLUDE...

TRINITY.

DECATUR.

MOORESVILLE.

TANNER.

FRENCH MILL.

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SPC has just upgraded the storm outlook. Moderate risk now extending all the way to Lake Erie... slight risk all the way into SE Lower Michigan. Tornado watches all across the Mid-Atlantic.

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DAY 1 CONVECTIVE OUTLOOK

NWS STORM PREDICTION CENTER NORMAN OK

0211 PM CDT WED APR 27 2011

VALID 272000Z - 281200Z

...THERE IS A HIGH RISK OF SVR TSTMS LATE THIS AFTN AND EVE ACROSS

PARTS OF NORTHERN AND EASTERN MISSISSIPPI...CENTRAL AND NORTHERN

ALABAMA...NORTHWEST GEORGIA AND SOUTHERN TENNESSEE...

...THERE IS A MDT RISK OF SVR TSTMS SURROUNDING THE HIGH RISK

AREA....ACROSS MUCH OF THE REMAINDER OF MISSISSIPPI...ALABAMA AND

NORTHERN GEORGIA...THE WESTERN

CAROLINAS...TENNESSEE...KENTUCKY...SOUTHEASTERN

INDIANA...OHIO...PARTS OF WESTERN PENNSYLVANIA AND WEST VIRGINIA...

...THERE IS A SLGT RISK OF SVR TSTMS SURROUNDING THE MODERATE RISK

AREA...ACROSS MUCH OF THE EASTERN U.S....

..20Z OUTLOOK UPDATE

...A DANGEROUS OUTBREAK OF SEVERE THUNDERSTORM AND TORNADOES APPEARS

UNDERWAY...AND CONFIDENCE IS INCREASING THAT THIS WILL EXPAND

NORTHWARD FROM THE GULF STATES THROUGH MUCH OF THE OHIO VALLEY LATE

THIS AFTERNOON AND EVENING...

REMNANTS OF THE MORNING MESOSCALE CONVECTIVE SYSTEM AND ITS

ASSOCIATED SURFACE COLD POOL...JUST EAST OF UPPER PORTIONS OF THE

LOWER MISSISSIPPI VALLEY INTO THE TENNESSEE VALLEY...REMAIN A

COMPLICATING FACTOR CONCERNING CONVECTIVE POTENTIAL. HOWEVER...

LATEST OBSERVATIONAL DATA SUGGEST THAT THE COLD POOL MAY BE IN THE

PROCESS OF WEAKENING. AND BOUNDARY LAYER MOISTENING ASSOCIATED WITH

THE PRECEDING RAINFALL...COUPLED WITH LATE AFTERNOON INSOLATION AND

MODIFYING LOW-LEVEL THERMODYNAMIC PROFILES ASSOCIATED WITH STRONG

DYNAMIC FORCING FOR UPWARD VERTICAL MOTION...PROBABLY WILL

CONTRIBUTE TO SUFFICIENT DESTABILIZATION TO JUSTIFY EXPANDING

MODERATE RISK SEVERE PROBABILITIES NORTHWESTWARD AND NORTHWARD

THROUGH MUCH OF THE REMAINDER OF THE OHIO VALLEY.

MODEL GUIDANCE...INCLUDING THE LATEST RUC AND 12Z ECMWF...INDICATE

THAT A DEEP SURFACE CYCLONE WILL DEEPEN FURTHER AS IT MIGRATES

NORTHWARD OUT OF THE OZARK PLATEAU...ACROSS THE LOWER OHIO VALLEY

...INTO THE LOWER GREAT LAKES REGION LATE THIS AFTERNOON AND

TONIGHT. THIS WILL ACCOMPANY A VIGOROUS MID-LEVEL SHORT WAVE

IMPULSE...WHICH IS PROGGED TO CONTRIBUTE TO STRONG MID-LEVEL HEIGHT

FALLS CENTERED ALONG THE OHIO RIVER...FROM NEAR ITS CONFLUENCE WITH

THE MISSISSIPPI RIVER INTO THE CINCINNATI OH AREA BETWEEN 28/00-06Z.

A 50-70 KT 850 MB JET APPEAR LIKELY TO DEVELOP NORTHWARD TO THE

WEST OF THE APPALACHIANS...AS A 100 KT 500 MB JET STREAK NOSES

NORTHEASTWARD ACROSS KENTUCKY AND TENNESSEE INTO OHIO BY LATE THIS

EVENING...CONTRIBUTING TO STRONG VERTICAL SHEAR SUPPORTIVE OF BOTH

LONG-LIVED SUPERCELLS AND ORGANIZED STORM CLUSTERS. GIVEN AT LEAST

WEAK BOUNDARY LAYER DESTABILIZATION... STRONG TORNADOES APPEAR

POSSIBLE...IN ADDITION TO THE RISK FOR STRONG /STRAIGHT LINE/

DAMAGING CONVECTIVE GUSTS.

..KERR.. 04/27/2011

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Wow... 15% hatched tor probabilities all the way up to near Mansfield, OH. SPC must be expecting all hell to break loose this afternoon / evening.

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Wow... 15% hatched tor probabilities all the way up to near Mansfield, OH. SPC must be expecting all hell to break loose this afternoon / evening.

:lightning:

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andy gabrileosn had a large funnel and a vortex spin off then I lost the signal

Yeah, saw that and now its just showing a tree down on a mobile home, it appears...wow.

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