Tornadoes rip Midwest, killing 9; heavy snow hits Upper Midwest

By: Dr. Jeff Masters , 3:05 PM GMT on February 29, 2012

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Strong tornadoes plowed through the Midwest U.S. last night and this morning, killing at least nine people. Six people died in Harrisburg, Illinois when a tornado hit near 5:37 am CST this morning, damaging or destroying 200 buildings. Another person was killed in southwest Missouri near Buffalo when a possible tornado ripped through a mobile home park. Thirteen others were injured in the mobile home park. Two others died in the Cassville and Puxico areas. A tornado also moved through downtown Branson, Missouri early this morning, causing heavy damage to the city's famous theaters, and injuring at least twelve people. A tornado plowed through the small town of Harveyville, Kansas (population 275), twenty miles southwest of Topeka, at 9:03 pm last night. The tornado destroyed 40 - 60% of the structures and injured ten, one critically. NOAA's Storm Prediction Center logged fifteen preliminary tornado reports yesterday and today.

The same storm system also brought the heaviest snows of the winter to portions of the Upper Midwest, which has received scant snowfall this winter. Blizzard warnings are posted in South Dakota this morning, where snowfall amounts of 6 - 10 inches are common. According to NOAA's latest storm summary, five states have experienced snowfall amounts of ten inches or more--Wisconsin, Minnesota, South Dakota, Michigan, and Nebraska. The highest snow amount as of 8 am CST was recorded at Tripoli, Wisconsin, where fourteen inches had fallen.


Figure 1. Radar image of the squall line that passed through Harrisburg, Illinois this morning, spawning a tornado that killed three people. The position of Harisburg is marked by a circle with a "+" symbol.


Figure 2. NOAA's Storm Prediction Center logged thirteen preliminary tornado reports yesterday.

More tornadoes likely today
The powerful late-winter storm system that spawned the deadly tornadoes will move eastwards, bringing snows of 5 - 10 inches to northern Wisconsin, northern Minnesota, Michigan's Upper Peninsula, and northern New England. The storm's cold front is triggering severe thunderstorms over much of Kentucky this morning, and these thunderstorms are expected to grow in severity and spawn more tornadoes this afternoon, once the heat of the day destabilizes the atmosphere. NOAA's Storm Prediction Center has posted tornado watches for portions of Arkansas, Missouri, Tennessee, Kentucky, and Ohio this morning, and has placed much of Tennessee and portions of surrounding states in their "Moderate Risk" area for severe weather today. Consult our Severe Weather Page and Interactive Tornado Page to follow today's severe weather.


Figure 3. NOAA's Storm Prediction Center has placed much of Tennessee and portions of surrounding states in their "Moderate Risk" area for severe weather, one level below the highest level of alert, "High Risk."

Jeff Masters

Big Flakes (papajuan)
Winter in Northern Minnesota
Big Flakes

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TORNADO WATCH NUMBER 53
NWS STORM PREDICTION CENTER NORMAN OK
635 PM EST WED FEB 29 2012

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

NORTH GEORGIA
WESTERN NORTH CAROLINA
UPSTATE SOUTH CAROLINA
EXTREME EAST AND SOUTHEAST TENNESSEE

EFFECTIVE THIS WEDNESDAY NIGHT AND THURSDAY MORNING FROM 635 PM
UNTIL 100 AM EST.

TORNADOES...HAIL TO 1.5 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 25 MILES NORTHWEST OF ROME
GEORGIA TO 50 MILES EAST NORTHEAST OF ASHEVILLE NORTH CAROLINA.
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 48...WW 49...WW 50...WW
51...WW 52...

DISCUSSION...A BROKEN PRE-FRONTAL BAND OF STORMS...INCLUDING SOME
EMBEDDED BOW/SUPERCELL STRUCTURES...WILL CONTINUE TO PROGRESS
EWD/ESEWD FROM AL/TN TO THE SRN APPALACHIANS OVERNIGHT. INSTABILITY
IS NOT PARTICULARLY STRONG ACROSS THE WATCH AREA...BUT A GRADUAL
INCREASE IN LOW-LEVEL MOISTURE INTO EARLY TONIGHT WILL TEND TO
OFFSET THE LOSS OF DAYTIME HEATING. MEANWHILE...A BELT OF STRONG
DEEP-LAYER FLOW AND VERTICAL SHEAR WILL REMAIN OVER THE WATCH AREA
AS A SHORTWAVE TROUGH MOVES OVER THE OH VALLEY. THE COMBINATION OF
WEAK INSTABILITY AND STRONG VERTICAL SHEAR WILL CONTINUE TO SUPPORT
A RISK FOR DAMAGING WINDS AND ISOLATED LARGE HAIL...AS WELL AS A
TORNADO OR TWO WITH THE MORE INTENSE EMBEDDED STORMS.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
450. MEAN STORM MOTION VECTOR 27045.


...THOMPSON
Member Since: Posts: Comments:
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
538 PM CST WED FEB 29 2012

MSC019-105-159-010015-
/O.CON.KJAN.SV.W.0062.000000T0000Z-120301T0015Z/
WINSTON MS-OKTIBBEHA MS-CHOCTAW MS-
538 PM CST WED FEB 29 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 615 PM CST
FOR SOUTHEASTERN CHOCTAW...SOUTHWESTERN OKTIBBEHA AND NORTHERN
WINSTON COUNTIES...

AT 538 PM CST...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE TRACKING
A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS
OF 60 MPH. THIS STORM WAS LOCATED 8 MILES NORTHWEST OF LOUISVILLE
MOVING EAST AT 50 MPH.

THE SEVERE THUNDERSTORM WILL BE NEAR...
BETHEDEN...MILLCREEK AND CRAIG SPRINGS BY 550 PM CST...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

WINDS OF 60 MPH CAN BRING DOWN TREES...POSSIBLY RESULTING IN INJURY
AND PROPERTY DAMAGE. ROOFS OF MOBILE HOMES AND OUTBUILDINGS COULD BE
DAMAGED...AND MINOR ROOF DAMAGE TO WELL BUILT HOMES AND STRUCTURES
COULD OCCUR.

SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES. WHILE NOT IMMEDIATELY
LIKELY...A TORNADO MAY STILL DEVELOP. IF A TORNADO IS SPOTTED...ACT
QUICKLY AND MOVE TO A PLACE OF SAFETY IN A STURDY STRUCTURE...SUCH AS
A SMALL INTERIOR ROOM.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 PM CST
WEDNESDAY EVENING FOR NORTHEAST LOUISIANA AND NORTHERN MISSISSIPPI.

&&

LAT...LON 3313 8930 3327 8929 3336 8882 3307 8881
3307 8883
TIME...MOT...LOC 2338Z 268DEG 45KT 3320 8910

$$

BK
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Quoting hydrus:


I think it will be easier for people to get over this day because it will repeat in 2016... A long time from today. RIP to those who left.
Happy leap day!
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So what's downstream from Clintwood VA?... geographic dummy here.
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Member Since: September 27, 2007 Posts: 1 Comments: 21195
Quoting KEEPEROFTHEGATE:
ya i know been a few hits then a few more with a few yet to come then its done till next round in 36 hrs
Thank you for checking up on us Keep...:)..We really are hoping for a mellow severe weather season. The forecast does not look too encouraging though. Want some lightning.?.
Member Since: September 27, 2007 Posts: 1 Comments: 21195
Thanks guys for being honest.Looks like another nasty day for tornados .Especially since the tornado threat will be shifting to the east today to more popluated areas.
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.
Member Since: June 1, 2010 Posts: 0 Comments: 159
Statement as of 6:29 PM EST on February 29, 2012

The National Weather Service in Knoxville-Tri Cities has issued a

* Tornado Warning for...
Russell County in southwest Virginia
north central Washington County in southwest Virginia

* until 700 PM EST

* at 624 PM EST... National Weather Service Doppler radar indicated a
severe thunderstorm capable of producing a tornado near
Cleveland... moving east at 45 mph.

* Other locations in the warning include but are not limited to
Lebanon.
Member Since: June 1, 2010 Posts: 0 Comments: 159
Quoting washingtonian115:
Can anyone see post 387?


Red x.
Member Since: Posts: Comments:
Quoting hydrus:
People just north of me in Smithville may not have been as lucky. Local radio reported damage to structures and trees. Sparta may have had a bad one. I am waiting for more reports.
ya i know been a few hits then a few more with a few yet to come then its done till next round in 36 hrs
Member Since: July 15, 2006 Posts: 171 Comments: 53835
Storm reports so far...Time Event Location County/State Remarks/Source
02/29 3:19 PM Thunderstorm Wind Gust 7 N Cookeville Putnam, TN
60-70 MPH WINDS REPORTED NORTH OF COOKEVILLE ALONG WITH PEA-SIZED HAIL.
From: TRAINED SPOTTER
02/29 3:35 PM 1 in. Hail 3 S Livingston Overton, TN
HAIL REPORTED NEAR HIGHWAY 84 AND INDUSTRIAL DRIVE
From: TRAINED SPOTTER
02/29 3:46 PM 1.50 in. Hail Jamestown Fentress, TN
From: TRAINED SPOTTER
02/29 3:30 PM Thunderstorm Wind Damage 8 N Cookeville Putnam, TN
TREES DOWN. QUARTER SIZED HAIL ALSO REPORTED.
From: EMERGENCY MNGR
02/29 4:00 PM 0.50 in. Hail 7 SW Allardt Fentress, TN
DIME SIZED HAIL REPORTED NORTH OF ALLARDT ALONG WITH ESTIMATED 40 MPH WINDS.
From: TRAINED SPOTTER
02/29 3:50 PM Thunderstorm Wind Damage 3 N Smithville De Kalb, TN
STRUCTURAL DAMAGE ON ARROWHEAD DRIVE. TREES DOWN ON DOGWOOD CIRCLE AND HIGHLAND DRIVE. POSSIBLE TORNADO.
From: AMATEUR RADIO
02/29 3:30 PM 1 in. Hail 5 NNE Algood Overton, TN
QUARTER SIZED HAIL REPORTED IN HICKMAN COUNTY
From: PUBLIC
02/29 4:13 PM Funnel Cloud 8 N Sparta White, TN
FUNNEL CLOUD REPORTED NORTH OF SPARTA.
From: TRAINED SPOTTER
02/29 4:25 PM 0.50 in. Hail 4 SE Monterey Cumberland, TN
From: TRAINED SPOTTER
02/29 4:30 PM Thunderstorm Wind Damage 10 E Monterey Cumberland, TN
60 TO 100 TREES BLOWN DOWN. POSSIBLE TORNADO.
From: EMERGENCY MNGR

02/29 3:24 PM Thunderstorm Wind Damage 10 SSW Livingston Overton, TN
BARN SUFFERED ROOF DAMAGE. ALSO HALF DOLLAR SIZED HAIL WAS REPORTED.
From: PUBLIC
02/29 4:10 PM Thunderstorm Wind Damage 8 N Sparta White, TN
BARN DESTROYED ALONG LINVILLE RD.
From: PUBLIC
02/29 4:30 PM Thunderstorm Wind Damage 10 E Monterey Cumberland, TN
THREE HOMES DESTROYED...TRACTOR TRAILER FLIPPED IN THE RINNIE COMMUNITY. AREA CURRENTLY INACCESSIBLE DUE TO THE DAMAGE. POSSIBLE TORNADO.
From: EMERGENCY MNGR
02/29 3:54 PM Thunderstorm Wind Damage 8 NE Smithville De Kalb, TN
ROOF DAMAGE WITH NUMEROUS TREES DOWN ALONG HOLIDAY HAVEN RD. REPORT OF A PERSON TRAPPED IN A HOME. POSSIBLE TORNADO.
From: EMERGENCY MNGR
Member Since: September 27, 2007 Posts: 1 Comments: 21195
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE KNOXVILLE-TRI CITIES TN
ISSUED BY NATIONAL WEATHER SERVICE PEACHTREE CITY GA
620 PM EST WED FEB 29 2012

THE NATIONAL WEATHER SERVICE IN KNOXVILLE-TRI CITIES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
SOUTHERN BLEDSOE COUNTY IN TENNESSEE
NORTH CENTRAL BRADLEY COUNTY IN TENNESSEE
NORTHERN HAMILTON COUNTY IN TENNESSEE
CENTRAL MEIGS COUNTY IN TENNESSEE
RHEA COUNTY IN TENNESSEE
SEQUATCHIE COUNTY IN TENNESSEE

* UNTIL 700 PM EST/600 PM CST/

* AT 517 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING DESTRUCTIVE WINDS UP TO 70
MPH. THIS STORM WAS LOCATED 14 MILES WEST OF DUNLAP...MOVING EAST
AT 70 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
SODDY-DAISY...DAYTON...SPRING CITY AND DECATUR.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

DOPPLER RADAR HAS INDICATED ROTATION WITHIN THIS STORM. ALTHOUGH
CURRENT DATA DOES NOT INDICATE THE EXISTENCE OF A TORNADO...A TORNADO
MAY STILL DEVELOP. IF A TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO
A PLACE OF SAFETY INSIDE A STURDY STRUCTURE...SUCH AS A BASEMENT OR
SMALL INTERIOR ROOM.

IF YOU SEE WIND DAMAGE...LARGE HAIL OR SIGNIFICANT FLOODING...WAIT
UNTIL THE STORM HAS PASSED...AND THEN CALL THE NATIONAL WEATHER
SERVICE TOLL FREE AT 1 8 6 6 7 6 3 4 4 6 6.
Member Since: June 1, 2010 Posts: 0 Comments: 159
Quoting washingtonian115:
Can anyone see post 387?


Not me. Looks blank.
Member Since: Posts: Comments:
Can anyone see post 387?
Member Since: Posts: Comments:


MESOSCALE DISCUSSION 0189
NWS STORM PREDICTION CENTER NORMAN OK
0436 PM CST WED FEB 29 2012

AREAS AFFECTED...FAR EASTERN TN/NORTH GA/WESTERN NC/WESTERN SC

CONCERNING...TORNADO WATCH 48...

VALID 292236Z - 292330Z

THE SEVERE WEATHER THREAT FOR TORNADO WATCH 48 CONTINUES.

A NEW TORNADO WATCH IS BEING CONSIDERED SHORTLY FOR REMAINING
PORTIONS OF EASTERN TN AS WELL AS FAR NORTH GA INTO WESTERN
NC/PERHAPS SC
. AT THE VERY LEAST...A SPATIAL EXTENSION OF TORNADO
WATCH 48 WILL LIKELY BE NEEDED ACROSS EASTERN TN.

A MODESTLY BROKEN LINE OF SEVERE STORMS WITH EMBEDDED SUPERCELLS
WILL CONTINUE TO STEADILY PROGRESS EAST-NORTHEASTWARD ACROSS THE
EASTERN THIRD OF TN OVER THE NEXT FEW HOURS. WHILE UPDRAFT
INTENSITIES HAVE TRENDED A BIT DOWNWARD IN THE SHORT TERM AND
DOWNSTREAM BUOYANCY IN VICINITY OF THE APPALACHIANS IS WEAKER /ONLY
SEVERAL HUNDRED J PER KG SBCAPE/...A CONTINUED WEST-SOUTHWESTERLY
MOISTURE INFLUX AND PROBABLE DOWNSTREAM/PRE-LINE
DESTABILIZATION...ALONG WITH A HIGHLY SHEARED ENVIRONMENT...WILL
CONTINUE TO FAVOR A HIGHLY-ORGANIZED STORM MODE INCLUDING EMBEDDED
SUPERCELLS/BOWS CAPABLE OF A FEW TORNADOES AND WIND DAMAGE.

SHORT-TERM TRENDS ARE BEING MONITORED FOR A NEW TORNADO WATCH.

..GUYER.. 02/29/2012
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Quoting ScottLincoln:


That hook doesn't look as "good" as Joplin. Nor is comparing hook echo signatures a particularly useful way to estimate storm strength or tornadic strength... at least when compared to other tools like velocity and spectrum width. I also find normalized rotation to be more helpful than hook echoes.

Remember, the EF4 from early this morning was embedded in a line of storms, and really didnt have anything like a hook echo.
Never said anything about what intensity the tornado was. I know better than to do that. I just had a conversation with someone telling them that a larger than normal hail core does not mean a large tornado is on the ground. Also what I was saying is true as far as hook echos this one looked fantastic.
Member Since: July 22, 2010 Posts: 1 Comments: 3842
.
Member Since: June 1, 2010 Posts: 0 Comments: 159
TORNADO WARNING
VAC167-169-195-720-292330-
/O.NEW.KMRX.TO.W.0004.120229T2300Z-120229T2330Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE KNOXVILLE-TRI CITIES TN
ISSUED BY NATIONAL WEATHER SERVICE PEACHTREE CITY GA
600 PM EST WED FEB 29 2012

THE NATIONAL WEATHER SERVICE IN KNOXVILLE-TRI CITIES HAS ISSUED A

* TORNADO WARNING FOR...
CITY OF NORTON IN SOUTHWEST VIRGINIA
RUSSELL COUNTY IN SOUTHWEST VIRGINIA
NORTH CENTRAL SCOTT COUNTY IN SOUTHWEST VIRGINIA
SOUTHEASTERN WISE COUNTY IN SOUTHWEST VIRGINIA

* UNTIL 630 PM EST

* AT 556 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR NORTON...
MOVING EAST AT 60 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
CLEVELAND AND LEBANON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

GO TO A SAFE PLACE NOW! TORNADOES IN HILLY OR MOUNTAINOUS TERRAIN ARE
HARD TO SEE. DO NOT WAIT TO SEE OR HEAR THE TORNADO.

IF YOU SEE WIND DAMAGE...LARGE HAIL OR SIGNIFICANT FLOODING...WAIT
UNTIL AFTER THE STORM HAS PASSED...AND THEN CALL THE NATIONAL WEATHER
SERVICE TOLL FREE AT 1 8 6 6 7 6 3 4 4 6 6.

&&

LAT...LON 3697 8176 3693 8182 3680 8263 3701 8266
3704 8248 3703 8248 3703 8245 3697 8235
3701 8228 3700 8224 3705 8217 3706 8204
3713 8201 3715 8191
TIME...MOT...LOC 2300Z 261DEG 50KT 3692 8248

$$
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Quoting hurricanehunter27:
When was the last time anyone saw a hook that looked this good? Joplin?


That hook doesn't look as "good" as Joplin. Nor is comparing hook echo signatures a particularly useful way to estimate storm strength or tornadic strength... at least when compared to other tools like velocity and spectrum width. I also find normalized rotation to be more helpful than hook echoes.

Remember, the EF4 from early this morning was embedded in a line of storms, and really didnt have anything like a hook echo.
Member Since: Posts: Comments:
Quoting Ameister12:
Tornado warning in Alabama.
Alabama cannot seem to catch a break....# ... Outlook for Friday---AREA FORECAST DISCUSSION...CORRECTED
NATIONAL WEATHER SERVICE HUNTSVILLE AL
335 PM CST WED FEB 29 2012

.DISCUSSION...
AIRMASS ACROSS THE LOCAL AREA CONTINUES TO BECOME MORE FAVORABLE FOR
STRONG/SVR TSTM DEVELOPMENT THIS AFTERNOON...AS THE CAP/LOW LEVEL
INVERSION GRADUALLY ERODES. COLD FRONT DRIVING MOST OF THE ACTIVITY
ACROSS THE REGION ALSO CONTINUES TO DRIFT EASTWARD AS IT APPROACHES
THE LOWER MS VALLEY. HIGHLY SHEARED ENVIRONMENT ACROSS THE CNTRL TN
VALLEY CONTINUES TO SUPPORT A DAMAGING WIND/TORNADIC THREAT WITHIN A
WARM CONVEYOR BELT. TORNADO WATCH 50 IS CURRENTLY IN EFFECT THROUGH
9 PM...WHICH SUPPORTS THE TIMING OF THE FRONTAL PASSAGE THROUGH THE
AREA AS SUGGESTED BY THE LATEST GUIDANCE. CONVECTION SHOULD THEN
BEGIN TO TAPER OFF FROM W TO E HEADING INTO MIDNIGHT IN THE WAKE OF
THE FRONT...WITH PERHAPS SOME PATCHY FOG DEVELOPING ACROSS MAINLY
THE CNTRL/WRN HALF OF THE AREA INTO THU MORNING.

A LITTLE BIT OF A BREAK IN THE WX IS XPCTED WELL INTO THE EVENING
HRS ON THU...BEFORE A WARM FRONT BEGINS TO LIFT NWD GOING INTO THE
OVERNIGHT PERIOD. ENHANCED LOW LEVEL HELICITY DEVELOPING ALONG THE
ADVANCING FRONT WILL THEN RESULT IN ANOTHER THREAT OF STRONG/SVR
TSTMS EARLY FRI MORNING...BEFORE A MORE PROGRESSIVE/STRONG COLD
FRONT BEGINS TO SWEEP EWD THROUGH THE REGION FRI NIGHT. PRIOR TO
THIS NEXT FRONTAL PASSAGE...ADDITIONAL CONVECTION IS POSSIBLE
THROUGH THE DAY FRI...WITH CONDITIONS/TEMPS REMAINING UNSEASONABLY
WARM. STRONG LOW LEVEL CONVERGENCE DEVELOPING ALONG THIS NEXT COLD
FRONT COUPLED WITH FAIRLY STRONG MID/UPPER FORCING WILL RESULT IN
YET ANOTHER THREAT OF A STRONG/SVR TSTMS LATE FRI EVENING...BEFORE
TAPERING OFF INTO THE EARLY OVERNIGHT HRS SAT. THERE IS PERHAPS A
LITTLE BIT MORE OF A TORNADIC THREAT EARLY FRI MORNING WITH THE
ENHANCED VEERING WIND PROFILE...TO GO ALONG WITH THE POSSIBILITY OF
DAMAGING WINDS AND HAIL. THE SVR WX THREAT THEN LOOKS TO TRANSITION
INTO MORE OF A LINEAR CONVECTIVE MODE WITH BOWING SEGMENTS/DAMAGING
WIND GUSTS/SOME HAIL POSSIBLE ALONG OR JUST AHEAD OF THE ADVANCING
COLD FRONT...ALTHOUGH BREAKS IN THIS LINE OF DEVELOPING TSTMS COULD
CERTAINLY SUPPORT AN ISOLATED TORNADIC THREAT AS WELL.

QUIET AND MORE SEASONAL WX CONDITIONS ARE THEN XPCTED GOING INTO THE
WEEKEND PERIOD...AS STRONG HIGH PRESSURE BUILDS EWD INTO THE SE
REGION BEHIND THE FRONTAL PASSAGE. OVERNIGHT LOWS STARTING SAT NIGHT
LOOK TO FALL BACK INTO THE LOW/MID 30S WITH AFTERNOON HIGHS CLIMBING
MORE INTO THE SEASONAL UPPER 50S/LOW 60S RANGE. OVERALL CONDITIONS
WILL GRADUALLY WARM HEADING INTO MID WEEK AS THE SFC HIGH CONTINUES
TO MOVE EWD TOWARD THE SRN/MID ATLANTIC BASIN.
Member Since: September 27, 2007 Posts: 1 Comments: 21195
@TWCBreaking

Damaging straight-line winds may sweep into the Birmingham, AL metro area in about 45-60 minutes Radar: http://www.weather.com/weather/map/interactive/Bi rmingham AL USAL0054?zoom=8&animation=true
Member Since: June 1, 2010 Posts: 0 Comments: 159
.
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Tornado warning in Alabama.
Member Since: August 9, 2009 Posts: 10 Comments: 4979
NATIONAL WEATHER SERVICE BIRMINGHAM AL
501 PM CST WED FEB 29 2012

THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
NORTHERN FAYETTE COUNTY IN WEST CENTRAL ALABAMA...
WALKER COUNTY IN ALABAMA...

* UNTIL 545 PM CST

* AT 458 PM CST...THE NATIONAL WEATHER SERVICE INDICATED A LINE OF
SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DESTRUCTIVE WINDS IN
EXCESS OF 80 MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING
FROM WINFIELD TO BLUFF TO BLOOMING GROVE...AND MOVING EAST AT 55
MPH.

* LOCATIONS IMPACTED INCLUDE...
FAYETTE...CARBON HILL...JASPER...ELDRIDGE...KANSAS...BANKSTON...
BERRY AND BOLEY SPRINGS.

THIS INCLUDES...
US 78 EXIT NUMBERS 46 THROUGH 65...

WINDS ABOVE 80 MPH WILL UPROOT AND SNAP TREES...DOWN POWER LINES AND
CAUSE SIGNIFICANT DAMAGE TO HOMES AND STRUCTURES.

THIS IS A DANGEROUS STORM. IF YOUR ARE IN ITS PATH...PREPARE
IMMEDAITELY FOR DAMAGING WINDS AND DEADLY CLOUD TO GROUND LIGHTNING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. TORNADOES CAN
DEVELOP QUICKLY FROM SEVERE THUNDERSTORMS. ALTHOUGH NOT IMMEDIATELY
LIKELY...IF A TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF
SAFETY INSIDE A STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL
INTERIOR ROOM.

FOR YOUR PROTECTION...MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF
YOUR HOME OR BUSINESS.

THESE STORMS HAVE A HISTORY OF PRODUCING WIDESPREAD WIND DAMAGE
ACROSS LAMAR COUNTY. THIS IS AN EXTREMELY DANGEROUS SITUATION. SEEK
SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS.

THIS IS AN EXTREMELY DANGEROUS SITUATION WITH TORNADO LIKE WIND
SPEEDS EXPECTED. MOBILE HOMES AND HIGH PROFILE VEHICLES ARE
ESPECIALLY SUSCEPTIBLE TO WINDS OF THIS MAGNITUDE AND MAY BE
OVERTURNED. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE
LOWEST FLOOR OF YOUR HOME OR BUSINESS. THESE STORMS HAVE THE
POTENTIAL TO CAUSE SERIOUS INJURY AND SIGNIFICANT DAMAGE TO PROPERTY.
Member Since: June 1, 2010 Posts: 0 Comments: 159
These storms have yet to form into a true line. Tornadoes will continue until then and maybe even after.
Member Since: July 22, 2010 Posts: 1 Comments: 3842
Quoting KEEPEROFTHEGATE:
good was a little worried about ya worst has passed for ya now i think
People just north of me in Smithville may not have been as lucky. Local radio reported damage to structures and trees. Sparta may have had a bad one. I am waiting for more reports.
Member Since: September 27, 2007 Posts: 1 Comments: 21195
NATIONAL WEATHER SERVICE BIRMINGHAM AL
457 PM CST WED FEB 29 2012

THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A

* TORNADO WARNING FOR...
NORTHERN FAYETTE COUNTY IN WEST CENTRAL ALABAMA...
SOUTHEASTERN MARION COUNTY IN NORTHWEST ALABAMA...
WEST CENTRAL WALKER COUNTY IN ALABAMA...

* UNTIL 530 PM CST

* AT 454 PM CST...THE NATIONAL WEATHER SERVICE INDICATED A SEVERE
THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM
WAS LOCATED NEAR GUIN...OR 7 MILES WEST OF WINFIELD...AND MOVING
EAST AT 55 MPH.

* LOCATIONS IMPACTED INCLUDE...
WINFIELD...CARBON HILL...GLEN ALLEN...ELDRIDGE...KANSAS...TUCKER...
CEDRUM AREA...TOWNLEY...HOLLY GROVE AND LUPTON.

THIS INCLUDES...
US 78 EXIT NUMBERS 39 THROUGH 52...
Member Since: June 1, 2010 Posts: 0 Comments: 159
Quoting hydrus:
Heavy rain and thunder. Had a wind gust around 40. So far so good...:)
good was a little worried about ya worst has passed for ya now i think
Member Since: July 15, 2006 Posts: 171 Comments: 53835
Quoting hurricanehunter27:
Wait does the GA NWS tend to issue warning for TN?



ALERT ADMINISTRATIVE MESSAGE
NATIONAL WEATHER SERVICE SOUTHERN REGION HEADQUARTERS
523 PM EDT THU FEB 29 2012

TO: ALL SRH NWS OFFICES

FROM: WFO PEACHTREE CITY GA

WFO PEACHTREE CITY GA HAS ASSUMED BACK-UP WARNING OPERATIONS FOR WFO
MRX...WHICH HAS AWIPS DATABASE ISSUES...UNTIL FURTHER NOTICE.

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379. Skyepony (Mod)
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON KY
552 PM EST WED FEB 29 2012

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

0250 PM TSTM WND DMG SCIENCE HILL 37.18N 84.64W
02/29/2012 PULASKI KY TRAINED SPOTTER

PLAYGROUND EQUIPMENT LOCATED AT THE SCIENCE HILL PARK WAS
UPROOTED AND MOVED BEHIND THE DAYCARE CENTER WHICH IS
APPROXIMATLEY A FOOTBALL FIELD DISTANCE AWAY.


more damage in KY
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Quoting hurricanehunter27:
When was the last time anyone saw a hook that looked this good? Joplin?
Twin 190 mph EF4's. Central Oklahoma, May 24, 2011 - the same day as the Piedmont EF5. One day after Joplin.


Quoting hurricanehunter27:
Wait does the GA NWS tend to issue warning for TN?


Possibly TN office is hunkered down. Happened in Norman on May 24, due to those two tornadoes in the graphic.
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Im finally back.
Can you guys mail me about what happened today, along with radar images and other pictures?
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Quoting KEEPEROFTHEGATE:
hydrus ya on how ya faring bro
Heavy rain and thunder. Had a wind gust around 40. So far so good...:)
Member Since: September 27, 2007 Posts: 1 Comments: 21195
Member Since: July 15, 2006 Posts: 171 Comments: 53835
@TWCBreaking

Nasty bow-echo #severe t-storms with destructive straight-line winds in Lamar Co., AL. Alert/radar: wxch.nl/xDgs4U

AT 445 PM CST... EMERGENCY MANAGEMENT REPORTED A LINE OF SEVERE THUNDERSTORMS PRODUCING EXTREME DAMAGING WINDS IN EXCESS OF 100 MPH. THIS STORM HAS KNOCKED DOWN MANY TREES THROUGH MARION COUNTY AND IS APPROACHING WESTERN FAYETTE COUNTY. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM GUIN TO BEAVERTON TO BEDFORD... MOVING EAST AT 60 MPH.

LOCATIONS IMPACTED INCLUDE... VERNON... WINFIELD... GU-WIN... BLOOMING GROVE... BLUFF... GLEN ALLEN... HIGHTOGY AND TUCKER.

THIS INCLUDES... US 78 EXIT NUMBERS 30 THROUGH 34...


THIS STORM HAS A HISTORY OF PRODUCING WIDESPREAD WIND DAMAGE ACROSS CENTRAL LAMAR COUNTY INCLUDING SULLIGENT. THIS IS AN EXTREMELY DANGEROUS SITUATION. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS.

THIS IS AN EXTREMELY DANGEROUS SITUATION WITH TORNADO LIKE WIND SPEEDS EXPECTED.
Member Since: June 1, 2010 Posts: 0 Comments: 159
Quoting aspectre:
From 274 BobWallace's AtlasObscura Hail No: An account of the world's biggest, deadliest hailstorms, a YouTube video of a not so good day to go swimming.
An eyebrow raiser from the beginning, then it gets really astounding at ~1minute40seconds.



Seen it before.

Complete mayhem. it's like the water is boiling from being hit so hard...by ice...


Could easily get killed in that one.
Member Since: January 25, 2012 Posts: 33 Comments: 1520
372. Skyepony (Mod)
I don't think so... not on their forecast map.
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Quoting jamesrainier:
NATIONAL WEATHER SERVICE KNOXVILLE-TRI CITIES TN
ISSUED BY NATIONAL WEATHER SERVICE PEACHTREE CITY GA
536 PM EST WED FEB 29 2012

THE NATIONAL WEATHER SERVICE IN KNOXVILLE-TRI CITIES HAS ISSUED A

* TORNADO WARNING FOR...
NORTHERN ANDERSON COUNTY IN TENNESSEE
WESTERN CAMPBELL COUNTY IN TENNESSEE
NORTHERN MORGAN COUNTY IN TENNESSEE
SOUTHERN SCOTT COUNTY IN TENNESSEE

* UNTIL 615 PM EST

* AT 533 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 26 MILES WEST OF
WARTBURG...MOVING EAST AT 65 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO LA
FOLLETTE AND JACKSBORO.
Wait does the GA NWS tend to issue warning for TN?
Member Since: July 22, 2010 Posts: 1 Comments: 3842
NATIONAL WEATHER SERVICE KNOXVILLE-TRI CITIES TN
ISSUED BY NATIONAL WEATHER SERVICE PEACHTREE CITY GA
536 PM EST WED FEB 29 2012

THE NATIONAL WEATHER SERVICE IN KNOXVILLE-TRI CITIES HAS ISSUED A

* TORNADO WARNING FOR...
NORTHERN ANDERSON COUNTY IN TENNESSEE
WESTERN CAMPBELL COUNTY IN TENNESSEE
NORTHERN MORGAN COUNTY IN TENNESSEE
SOUTHERN SCOTT COUNTY IN TENNESSEE

* UNTIL 615 PM EST

* AT 533 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 26 MILES WEST OF
WARTBURG...MOVING EAST AT 65 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO LA
FOLLETTE AND JACKSBORO.
Member Since: June 1, 2010 Posts: 0 Comments: 159
Member Since: July 15, 2006 Posts: 171 Comments: 53835
Another outbreak.

Not exactly what we needed for the day.
Member Since: January 25, 2012 Posts: 33 Comments: 1520
Hard to imagine right now but next week could worse. I bet Reed Timmer is chomping at the bit on these models for next week.

Member Since: October 26, 2011 Posts: 0 Comments: 2651
This is on the MS/AL border.

NATIONAL WEATHER SERVICE MEMPHIS TN
432 PM CST WED FEB 29 2012

THE NATIONAL WEATHER SERVICE IN MEMPHIS HAS ISSUED A

* TORNADO WARNING FOR...
EAST CENTRAL MONROE COUNTY IN NORTHEAST MISSISSIPPI...

* UNTIL 445 PM CST

* AT 432 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM PRODUCING A TORNADO NEAR SPLUNGE...OR 12 MILES
EAST OF AMORY...MOVING EAST AT 45 MPH.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO PARHAM...
SPLUNGE AND SIPSEY FORK.
Member Since: June 1, 2010 Posts: 0 Comments: 159
.
Member Since: June 1, 2010 Posts: 0 Comments: 159
Quoting KEEPEROFTHEGATE:
Just like I thought would happen. Storm moving to the NE strengths and the one moving east dies. If anyone wants to know why I'm mentioning the storm splitting is because it is necessary that a supercells split from a parent cell. Most of the time you don't see this occur on radar because the process occurs so early.
Member Since: July 22, 2010 Posts: 1 Comments: 3842
What a day!

Tornado Warning remains in effect for southwestern Fentress...
northern Cumberland... southeastern Putnam and southeastern Overton
counties until 445 PM CST...

At 415 PM CST... National Weather Service Doppler radar indicated a
severe thunderstorm capable of producing a tornado. This dangerous
storm was located 7 miles southwest of Monterey... or 12 miles
southeast of Cookeville... moving east at 50 mph.

At 350 PM CDT... this storm damaged buildings north of Smithville in
De Kalb County.


This dangerous storm will affect mainly rural areas of northern
Cumberland... southeastern Overton... southeastern Putnam and
southwestern Fentress counties.

Precautionary/preparedness actions...

To report severe weather... contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
in Nashville.

Member Since: October 26, 2011 Posts: 0 Comments: 2651
<
Member Since: July 15, 2006 Posts: 171 Comments: 53835
Quoting aspectre:
My thinking is that it's the same event: that Beijing was near the northwestern end of the astonishingly black smokeplume that you posted a satellite photo of earlier.
those were my thoughts as well. didn't want to mention with all the severe activity underway, but folks are covering that pretty well right now... and this severe season, while year-round potential, is most definitely upon us!
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Quoting KEEPEROFTHEGATE:
Ok look at the TN AL border line. This is one of the best examples of a storm splitting iv ever seen. The storm that is moving to the NE is more likely to produce a tornado but both these storms are very dangerous. Keep an eye on them.
Member Since: July 22, 2010 Posts: 1 Comments: 3842
<
Member Since: July 15, 2006 Posts: 171 Comments: 53835

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Jeff co-founded the Weather Underground in 1995 while working on his Ph.D. He flew with the NOAA Hurricane Hunters from 1986-1990.

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