Damaging Tornadoes Slam Plains

By: Shaun Tanner , 6:50 AM GMT on April 15, 2012

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A devastating string of severe thunderstorms and tornadoes tracked through Texas, Oklahoma, Kansas, and Nebraska on Saturday. This severe weather outbreak was remarkable in its duration as supercell thunderstorms began to pop up in western Kansas late Saturday morning, and the dry line that was supposed to represent the end of the severe weather threat was only halfway through Kansas, Oklahoma, and Texas by 1:00 AM Central Time Sunday. The moisture difference on either side of this dry line was remarkable as well, with dew points in the upper 60's to the east, and a very dry 20's to the west.


SPC Storm Reports from Saturday

The SPC storm reports show the track of these storms, with Kansas being the hardest hit. Early in the afternoon, most of the supercell thunderstorms were consistently producing weak tornadoes that skipped across western and central Kansas. As the low-level jet stream kicked in late in the afternoon and into the evening, the thunderstorms strengthened considerably. Probably the most remarkable supercell thunderstorm began in western Oklahoma near Woodward as a stunning multi-vortex tornado. The tornado actually was several tornadoes that danced into southern Kansas and eventually threatened Wichita. The tornado passed just south and east of the city, producing an 84 mph wind gust at the Wichita Airport. It also did extensive damage at the airport. In addition, the Oaklawn area of Wichita was declared a disaster area very soon after the tornado passed. The Sedgwick County commissioner declared the county a disaster area. This wedge tornado eventually moved along the Kansas Turnpike northeast of Wichita before finally dissipating.


Figure 1. Double tornadoes in Oklahoma close to the Kansas border. Image credit: news9.com


Figure 2. This tornado sparked a fire in Oklahoma as it passed through the area northeast of Woodward. Image credit: news9.com

The deadliest tornado of the outbreak struck Woodward, OK early Sunday morning, as the main squall line moved through western Oklahoma. This tornado was very large and particularly dangerous since it occurred at night when most residents assumed the threat had ended. There were multiple reports of not hearing the city's siren, so it is entirely possible that the siren was either struck by lightning or hit by the tornado itself. At least five deaths have been confirmed in the Woodward area from this tornado. Probably the scariest video of a tornado I have ever seen was taken of this Woodward tornado as it moved into town. Note you can see the scale of the tornado as between power flashes.


Video 1. Storm chaser video of one of Saturday's impressive tornadoes near Salina, Kansas.


Figure 3. Radar reflectivity image of the tornado that hit the south side of Wichita, Kansas, causing damage at the Wichita airport.

Perhaps the most telling feature of this severe weather outbreak was its repetitive nature. Salina, KS was tornado warned three times by three separate severe thunderstorms. Similarly, areas from Medicine Lodge to Kingman, Kansas were warned for two separate thunderstorms, while Woodward itself was warned very early in the day before a different tornado moved through the city late in the night.

Last night's storms have weakened, but a new round of severe weather is expected Sunday afternoon over portions of Wisconsin, Minnesota, and Iowa. NOAA's Storm Prediction Center has put the region under their second highest level of alert, a "Moderate Risk."

Shaun Tanner

Thunderstorm Wind Damage (dhennem)
Straight line winds from a thunderstorm this evening blew several semi tractor/trailers over on Interstate 29 in Fremont county, Iowa.
Thunderstorm Wind Damage
Freak Hail Storm Texas Panhandle (Randy7628)
Freak Hail Storm Texas Panhandle
Night tornado (Andrewbre)
Night tornado in Manchester,OK
Night tornado
Clouds II (amo1379)
Clouds II

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Member Since: July 6, 2010 Posts: 113 Comments: 31432
BULLETIN - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH OUTLINE UPDATE FOR WT 179
NWS STORM PREDICTION CENTER NORMAN OK
425 PM CDT SUN APR 15 2012

TORNADO WATCH 179 IS IN EFFECT UNTIL 1200 AM CDT FOR THE
FOLLOWING LOCATIONS

ARC001-005-011-013-019-021-023-025-027-029-031-037 -039-041-043-
045-049-051-053-055-057-059-063-065-067-069-073-07 5-077-079-085-
089-091-095-097-099-103-105-107-109-111-115-117-11 9-121-123-125-
129-135-137-139-141-145-147-149-160500-
/O.NEW.KWNS.TO.A.0179.120415T2125Z-120416T0500Z/

AR
. ARKANSAS COUNTIES INCLUDED ARE

ARKANSAS BAXTER BRADLEY
CALHOUN CLARK CLAY
CLEBURNE CLEVELAND COLUMBIA
CONWAY CRAIGHEAD CROSS
DALLAS DESHA DREW
FAULKNER FULTON GARLAND
GRANT GREENE HEMPSTEAD
HOT SPRING INDEPENDENCE IZARD
JACKSON JEFFERSON LAFAYETTE
LAWRENCE LEE LINCOLN
LONOKE MARION MILLER
MONROE MONTGOMERY NEVADA
OUACHITA PERRY PHILLIPS
PIKE POINSETT POPE
PRAIRIE PULASKI RANDOLPH
SALINE SEARCY SHARP
ST. FRANCIS STONE UNION
VAN BUREN WHITE WOODRUFF
YELL


ATTN...WFO...LZK...SHV...MEG...
Member Since: July 6, 2010 Posts: 113 Comments: 31432
Quoting trunkmonkey:



From looking at Zappy's pic's I have studied damage to homes for the last 10 years, one thing I've noticed in damage is the newer type garage doors made of a thin sheet of Aluminum covering foam, this is light weight and offers no protection to tornado's.

Once the garage door collapses the covering to the attic access is usually in the garage, the covering is usually a piece of 1/2 inch plywood covering the access.

As the tornado comes through knocks down the garage door, the uplift takes out the plywood, then causing the roof surrounding the garage to lift away.
This is happening more and more, I don't see any difference between a hip roof or a gable roof, this is major damage to both types.



Hip roof only reduces surface area by about 10% or so, and even then only for 12/12 roof pitch or below. If people put ridiculous pitches like 15 or more on the ends, which is often the style, it really doesn't even help.


The other thing you'll notice is the roofing itself did not even fail. It flew away in one piece.

So the real problem is the rafters, joists, and studs all need to be strapped to the double top plate. Not just those dinking looking 4 inch by 1 inche metal things.

They really need to wrap the entire junction in a "saddle" style strap which would be designed from one piece to wrap around the rafter and the top plate.

Even then, if you strap the rafters and joists to the top plate, but do not strap the studs, it will not help. It will just rip the top plates off the studs.

So it really needs to be everything wrapped to the top plates, and honestly, outside corners should have a metal post concreted into the chain-wall foundation, which would tie into the roof and top plates, instead of conventional anchor bolts.

Without that sort of "complete tie in" approach to home building, you'll see the same thing every time. These storms would just rip the roof off in one piece anyway if you only wrap rafters and joists, but not the studs.

Rafters should also be strapped to the Ridge beam.

Also, on a hip roof, the short rafters should be strapped to the hip.

One other thing.

Joists really should be cross-blocked at least on both ends and at every joint to prevent "rolling", which exceeds code, but the existing codes only requires the 2by4s laid across them with the vertical 2by6, which distributes some vertical load and some horizontal racking, but does little to prevent the joists rolling over. Once they roll over, they will rip out of the top plate and either the roof will collapse or it will fly away if the wind is strong enough.

Yeah, we kinda have a few centuries of bone-head engineering for our homes, unfortunately.

Unfortunately, contractors refuse to pay framing crews and concrete crews for these types of installments, even when they are code. They pretty much just expect the extra labor for free.

Member Since: January 25, 2012 Posts: 33 Comments: 1520
EF3 damage for Wichita area according to NWS Wichita.
Member Since: Posts: Comments:
340. DDR
According to the discussion the ITCZ is at 10n 60 W already...wow...I'm expecting 3-5 inches of rain over the 7 days...madness.
Member Since: Posts: Comments:
Unbelievable...

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
424 PM CDT SUN APR 15 2012

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
SOUTHERN BOONE COUNTY IN CENTRAL MISSOURI...
WESTERN COLE COUNTY IN CENTRAL MISSOURI...
MONITEAU COUNTY IN CENTRAL MISSOURI...

* UNTIL 500 PM CDT

* AT 422 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR ELDON...AND
MOVING NORTHEAST AT 90 MPH.

HAZARD...QUARTER SIZE HAIL AND 60 MPH WIND GUSTS.

SOURCE...RADAR INDICATED.

IMPACT...MINOR DAMAGE TO VEHICLES...ROOFS AND WINDOWS. MINOR TREE
DAMAGE...WITH LIMBS UP TO ONE INCH IN DIAMETER BROKEN.

* LOCATIONS IMPACTED INCLUDE...
CALIFORNIA...ASHLAND...COLUMBIA...HIGH POINT...RUSSELLVILLE...
MCGIRK...CENTERTOWN...ST. MARTINS...JAMESTOWN...EASLEY...MIDWAY...
ENON...LATHAM...LOHMAN...ELSTON...KLIEVER...MARION ...HARTSBURG...
SANDY HOOK AND WILTON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

&&

LAT...LON 3869 9265 3869 9262 3908 9243 3897 9214
3890 9217 3888 9215 3841 9240 3842 9241
3843 9263 3852 9274
TIME...MOT...LOC 2124Z 205DEG 76KT 3835 9262

HAIL...1.00IN
WIND...60 MPH

$$

TRUETT

Member Since: February 11, 2012 Posts: 82 Comments: 7610
They have some weird names for h and they don't have Harrison!!
Member Since: June 17, 2011 Posts: 11 Comments: 6461
Quoting JrWeathermanFL:
Looking at the Atlantic hurricane season's names this year, how do you pronounce Beryl?

BER-ril.

Pronunciation Guide (PDF)
Member Since: July 6, 2010 Posts: 113 Comments: 31432
Quoting wxgeek723:


Bear - ill

Thank You
Member Since: Posts: Comments:
Quoting HurricaneDean07:

I'm waiting for the system to materialize completely, but its getting close to showing itself.

Currently, the only thing im going off of is model strength and support, and the likeliness of it occuring, which means i'm giving the system about 50% chance of forming.
Member Since: October 3, 2010 Posts: 40 Comments: 4129
Quoting TropicalAnalystwx13:

The $283 million is from the Wichita, KS tornado only. Still updating totals.

Wow.
Member Since: Posts: Comments:
Uh oh

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE SIOUX FALLS SD
414 PM CDT SUN APR 15 2012

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A

* TORNADO WARNING FOR...
NORTH CENTRAL LYON COUNTY IN SOUTHWEST MINNESOTA...

* UNTIL 430 PM CDT

* AT 413 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE
TRACKING A CONFIRMED TORNADO NORTH OF GHENT...OR 9 MILES NORTHWEST
OF MARSHALL. DOPPLER RADAR SHOWED THIS TORNADO MOVING NORTH AT
15 MPH.

AT 411 PM...A TORNADO WAS REPORTED 4 TO 7 MILES NORTH OF GHENT.

* THE TORNADO WILL AFFECT MAINLY RURAL AREAS OF NORTH CENTRAL LYON
COUNTY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 4462 9573 4449 9587 4452 9598 4464 9595
4463 9574 4463 9573
TIME...MOT...LOC 2113Z 202DEG 14KT 4456 9589

$$

LAFLIN

Member Since: February 11, 2012 Posts: 82 Comments: 7610
Quoting JrWeathermanFL:

What do you think the formation chances are?

I'm waiting for the system to materialize completely, but its getting close to showing itself.
Member Since: October 3, 2010 Posts: 40 Comments: 4129
Quoting RTSplayer:


That is a 5 day precip total.

The model is probably assuming S. Texas and Louisiana will get some rain from the surface low that is supposed to develop over the bay of Campeche.

Then again, the previous surface low sort of just died over Mexico and never did anything anyway.

Yeah, I checked again, and not all of the models' latest runs are out yet, but some of the ensembles had a weak, pop-up surface low off the coast of Louisiana on the 17th.

Given the unseasonable water temperatures are about a month ahead of schedule for temperature, I guess that's not entirely out of the question.

That could explain some of the rain in Louisiana and Texas.


I am aware it is a 5 day precip total and if that front pushes through, the chances of any rain coming behind it are slim. The Jet behind it will prevent that. I think Houston (and most of SE Texas) are capped and this will be a bust forecast.
Member Since: August 18, 2011 Posts: 0 Comments: 598
RGM visible ATL wide satellite loop.
Check out the area around 31.5 N, 51 W on the map, just turn on lat/lon on the satellite overlay.
Member Since: October 3, 2010 Posts: 40 Comments: 4129
Quoting JrWeathermanFL:
Wikiapedia says that their are $283 million in damage from the tornadoes. Out of the 7 tornadoes survayed, The Kanapolis State Park tornado in Kansas was an EF-4.

The $283 million is from the Wichita, KS tornado only. Still updating totals.
Member Since: July 6, 2010 Posts: 113 Comments: 31432
Quoting JrWeathermanFL:
Looking at the Atlantic hurricane season's names this year, how do you pronounce Beryl?


Bear - ill
Member Since: Posts: Comments:
Quoting HurricaneDean07:
It's a perfect situation for formation, The high pressure area is pulling air down, while the front is lifting away, which in-turn cuases cyclonic turning to occur, which increases formation chances.

What do you think the formation chances are?
Member Since: Posts: Comments:
This is a very nasty storm in central MO that is absolutely FLYING

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SPRINGFIELD MO
411 PM CDT SUN APR 15 2012

THE NATIONAL WEATHER SERVICE IN SPRINGFIELD HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
WESTERN MILLER COUNTY IN CENTRAL MISSOURI...
SOUTHEASTERN MORGAN COUNTY IN CENTRAL MISSOURI...

* UNTIL 500 PM CDT

* AT 409 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED 9 MILES SOUTH OF
LAURIE...AND MOVING NORTHEAST AT 85 MPH.

HAZARD...PING PONG BALL SIZE HAIL AND 60 MPH WIND GUSTS.

SOURCE...RADAR INDICATED.

IMPACT...DAMAGE TO VEHICLES...ROOFS AND WINDOWS. MINOR TREE
DAMAGE...WITH LIMBS UP TO ONE INCH IN DIAMETER BROKEN.

* LOCATIONS IMPACTED INCLUDE...
ELDON...LAURIE...LAKELAND...KAISER...LAKEVIEW...BA GNELL...ROCKY
MOUNT...GRAVOIS MILLS...TUSCUMBIA...AURORA SPRINGS...BARNETT...
MARYS HOME...ETTERVILLE AND OLEAN.

THIS WARNING ALSO INCLUDES LAKE OF THE OZARKS STATE PARK AND LAKE OF
THE OZARKS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

PREPARE IMMEDIATELY FOR LARGE HAIL AND DEADLY CLOUD TO GROUND
LIGHTNING. SEEK SHELTER INSIDE A WELL-BUILT STRUCTURE. STAY AWAY FROM
WINDOWS.

LARGE HAIL...DAMAGING WINDS AND CONTINUOUS CLOUD TO GROUND LIGHTNING
IS OCCURRING WITH THIS STORM. MOVE INDOORS IMMEDIATELY. LIGHTNING
KILLS. REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO
BE STRUCK BY LIGHTNING.

&&

LAT...LON 3853 9275 3844 9262 3843 9241 3835 9240
3834 9232 3804 9253 3810 9259 3817 9260
3817 9264 3821 9264 3822 9274 3819 9277
3820 9289
TIME...MOT...LOC 2111Z 203DEG 75KT 3811 9279

HAIL...1.50IN
WIND...60 MPH

$$

FOSTER
Member Since: February 11, 2012 Posts: 82 Comments: 7610
Looking at the Atlantic hurricane season's names this year, how do you pronounce Beryl?
Member Since: Posts: Comments:
It's a perfect situation for formation, The high pressure area is pulling air down, while the front is lifting away, which in-turn cuases cyclonic turning to occur, which increases formation chances.
Member Since: October 3, 2010 Posts: 40 Comments: 4129
Wikiapedia says that their are $283 million in damage from the tornadoes. Out of the 7 tornadoes survayed, The Kanapolis State Park tornado in Kansas was an EF-4.
Member Since: Posts: Comments:
We are exactly one month away from the start of the East Pacific Hurricane Season!
Member Since: February 11, 2012 Posts: 82 Comments: 7610
Quoting Zappy:
Damage in Woodward (From AP):





And Wichita:







------------------------------------------------- ---------------------

Just wow...



From looking at Zappy's pic's I have studied damage to homes for the last 10 years, one thing I've noticed in damage is the newer type garage doors made of a thin sheet of Aluminum covering foam, this is light weight and offers no protection to tornado's.

Once the garage door collapses the covering to the attic access is usually in the garage, the covering is usually a piece of 1/2 inch plywood covering the access.

As the tornado comes through knocks down the garage door, the uplift takes out the plywood, then causing the roof surrounding the garage to lift away.
This is happening more and more, I don't see any difference between a hip roof or a gable roof, this is major damage to both types.

Member Since: Posts: Comments:
Quoting Bluestorm5:
Yeah I agree with that. I won't be surprised if Ellsworth/Kanopolis Lake tornado will be updated to EF5 with that kind of details NWS Wichita survey team reported. Barks peeling from tree and road being ripped off is a typical of high EF4 to EF5.

Me neither, but they were all definitely at least EF4s.
Member Since: July 6, 2010 Posts: 113 Comments: 31432
Quoting hydrus:

models are repeatively showing the formation of Alberto for the past 5 days. The latest euro surface analysis at 0 hours shows the low pressure area is beginning to form along the frontal boundary.
Today's Model guidance, 12Z for Alberto: They seem to be in better agreement on track.


Yesturday's Model guidance, 12Z for Alberto:


Model color code key:
Black= Nogaps, Orange= Euro, Green= Canadian, Light blue= GFS, Red= Ukmet, Maroon= GGEM
Member Since: October 3, 2010 Posts: 40 Comments: 4129
Quoting TropicalAnalystwx13:

In my opinion, there were three EF4s yesterday: The well documented one, the one that started near Greensburg, and the one that impacted Wichita.

Trying to get the Wikipedia pages updated.
Yeah I agree with that. I won't be surprised if Ellsworth/Kanopolis Lake tornado will be updated to EF5 with that kind of details NWS Wichita survey team reported. Barks peeling from tree and road being ripped off is a typical of high EF4 to EF5.
Member Since: Posts: Comments:
Quoting Bluestorm5:
according to Wikipedia, the tornado rated EF4 happened late at night. The picture is the first close call Salina tornado indeed. My bad, y'all.

In my opinion, there were three EF4s yesterday: The well documented one, the one that started near Greensburg, and the one that impacted Wichita.

Trying to get the Wikipedia pages updated.
Member Since: July 6, 2010 Posts: 113 Comments: 31432
Quoting Tropicsweatherpr:
Here are the sst's in the GOM. Considering that is Mid-April,those readings are warmer than average.

I caught some shrimp out there and they were already cooked and ready to eat...:)
Member Since: Posts: Comments:
Quoting RTSplayer:


Oh.

Well, that makes sense too.

There were 3 very powerful tornadic cells yesterday.

An "early" one that had a close call with Salina during the day, which was well documented on camera, and then an "evening" one which was also a very large wedge tornado.

Like I said above, I think both of the "Salina" tornadoes were EF4 at some point.


I'm pretty sure the Wichita one may have been EF5 at peak intensity, but it appears that must have been in the middle of an open space away from anybody.
I agree with both 2 tornadoes near Salina AND Wichita tornado. I think first "Salina" tornado is easily EF3 or EF4, but 2nd "Salina" tornado may have been EF5, with both radar and damage reports supporting that. That tornado happened last at night and we all saw that tornado was very powerful on radar. Wichita tornado did maybe EF2 damage to the city, but that tornado may had peaked at EF4/5 just a hour prior as you said.
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Quoting RTSplayer:



That was the first close call for Salina.

The other one was much too late at night to have been that one on camera.

Either way, I'm pretty sure both of the close calls for Salina were EF4 at some point in their lives.
according to Wikipedia, the tornado rated EF4 happened late at night. The picture is the first close call Salina tornado indeed. My bad, y'all.
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Quoting Bluestorm5:
This is not Wichita area tornado. Wichita area tornado was the one with 300 kts gate to gate and recycling. This is tornado from Greensburg to Salina cell.


Oh.

Well, that makes sense too.

There were 3 very powerful tornadic cells yesterday.

An "early" one that had a close call with Salina during the day, which was well documented on camera, and then an "evening" one which was also a very large wedge tornado.

Like I said above, I think both of the "Salina" tornadoes were EF4 at some point.


I'm pretty sure the Wichita one may have been EF5 at peak intensity, but it appears that must have been in the middle of an open space away from anybody.
Member Since: January 25, 2012 Posts: 33 Comments: 1520
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Quoting Bluestorm5:
Ellsworth/Kanopolis Lake tornado (part of Greensburg to Salina cell)

This tornado looked very powerful on radar last night



EDIT: I am unsure if this is the exact tornado that was rated EF4. Couple of tornado was in Ellsworth/Kanopolis Lake area yesterday.



That was the first close call for Salina.

The other one was much too late at night to have been that one on camera.

Either way, I'm pretty sure both of the close calls for Salina were EF4 at some point in their lives.
Member Since: January 25, 2012 Posts: 33 Comments: 1520
Quoting RTSplayer:



Thank God that sucker obviously went through a down cycle as it made it's closest approach to the populated areas.


We knew it had some insane wind speeds at one point SW of Wichita from the radar readings.

Supposedly 300kts "gate to gate" wind speed as they said, or roughly 150kts each way...
This is not Wichita area tornado. Wichita area tornado was the one with 300 kts gate to gate and recycling. This is tornado from Greensburg to Salina cell.
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the Atlantic system looks good on this chart..
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Quoting Bluestorm5:


Not very detailed yet. Just EF4 rating and what's the damage is like. This damage details sounds like it could easily be updated to EF5, though...

Link



thanks
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Quoting Bluestorm5:
Sounds like we might have EF5...

VIA Weather Channel on Twitter: NWS Wichita: Prelim. EF4 #tornado near Kanopolis Lake, KS. A farmstead was decimated, trees stripped of bark, roads scoured.

Won't surprise me if this is updated to EF5.



Thank God that sucker obviously went through a down cycle as it made it's closest approach to the populated areas.


We knew it had some insane wind speeds at one point SW of Wichita from the radar readings.

Supposedly 300kts "gate to gate" wind speed as they said, or roughly 150kts each way...
Member Since: January 25, 2012 Posts: 33 Comments: 1520
Here are the sst's in the GOM. Considering that is Mid-April,those readings are warmer than average.

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Tornado warning in southwest mn
Member Since: June 17, 2011 Posts: 11 Comments: 6461
Quoting Tazmanian:
any one have info on the Ellinsworth, KS tornado i like too no where they set the winds on this EF4 nado


Not very detailed yet. Just EF4 rating and what's the damage is like. This damage details sounds like it could easily be updated to EF5, though...

Link
Member Since: Posts: Comments:
any one have info on the Ellinsworth, KS tornado i like too no where they set the winds on this EF4 nado
Member Since: Posts: Comments:
Ellsworth/Kanopolis Lake tornado (part of Greensburg to Salina cell)

This tornado looked very powerful on radar last night



EDIT: I am unsure if this is the exact tornado that was rated EF4. Couple of tornado was in Ellsworth/Kanopolis Lake area yesterday.
Member Since: Posts: Comments:
Quoting DavidHOUTX:
If this front does not stall or these storms do not fire up quickly....




That makes this map about as useless as anything the NWS uses


That is a 5 day precip total.

The model is probably assuming S. Texas and Louisiana will get some rain from the surface low that is supposed to develop over the bay of Campeche.

Then again, the previous surface low sort of just died over Mexico and never did anything anyway.

Yeah, I checked again, and not all of the models' latest runs are out yet, but some of the ensembles had a weak, pop-up surface low off the coast of Louisiana on the 17th.

Given the unseasonable water temperatures are about a month ahead of schedule for temperature, I guess that's not entirely out of the question.

That could explain some of the rain in Louisiana and Texas.
Member Since: January 25, 2012 Posts: 33 Comments: 1520
BULLETIN - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH OUTLINE UPDATE FOR WT 178
NWS STORM PREDICTION CENTER NORMAN OK
340 PM CDT SUN APR 15 2012

TORNADO WATCH 178 IS IN EFFECT UNTIL 1100 PM CDT FOR THE
FOLLOWING LOCATIONS

IAC033-037-041-059-063-067-081-089-109-131-147-189 -191-195-
160400-
/O.NEW.KWNS.TO.A.0178.120415T2040Z-120416T0400Z/

IA
. IOWA COUNTIES INCLUDED ARE

CERRO GORDO CHICKASAW CLAY
DICKINSON EMMET FLOYD
HANCOCK HOWARD KOSSUTH
MITCHELL PALO ALTO WINNEBAGO
WINNESHIEK WORTH


MNC003-013-015-019-023-025-033-037-039-043-045-047 -049-053-055-
059-063-067-079-081-083-085-091-093-099-101-103-10 9-123-127-129-
131-139-141-143-147-157-161-163-165-169-171-173-16 0400-
/O.NEW.KWNS.TO.A.0178.120415T2040Z-120416T0400Z/

MN
. MINNESOTA COUNTIES INCLUDED ARE

ANOKA BLUE EARTH BROWN
CARVER CHIPPEWA CHISAGO
COTTONWOOD DAKOTA DODGE
FARIBAULT FILLMORE FREEBORN
GOODHUE HENNEPIN HOUSTON
ISANTI JACKSON KANDIYOHI
LE SUEUR LINCOLN LYON
MARTIN MCLEOD MEEKER
MOWER MURRAY NICOLLET
OLMSTED RAMSEY REDWOOD
RENVILLE RICE SCOTT
SHERBURNE SIBLEY STEELE
WABASHA WASECA WASHINGTON
WATONWAN WINONA WRIGHT
YELLOW MEDICINE


WIC005-011-017-019-033-035-053-063-091-093-095-107 -109-119-121-
160400-
/O.NEW.KWNS.TO.A.0178.120415T2040Z-120416T0400Z/

WI
. WISCONSIN COUNTIES INCLUDED ARE

BARRON BUFFALO CHIPPEWA
CLARK DUNN EAU CLAIRE
JACKSON LA CROSSE PEPIN
PIERCE POLK RUSK
ST. CROIX TAYLOR TREMPEALEAU


ATTN...WFO...DMX...ARX...MPX...FSD...
Member Since: July 6, 2010 Posts: 113 Comments: 31432
Quoting Bluestorm5:
Not surprising. Damages looked like EF2 or EF3. 5 people was killed because sirens never went off because of lightning cutting the power off.



it could go higher
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Quoting Tazmanian:
5 deaths – Major strucutral damage in western and northern parts of Woodward. Preliminary survey results revealed at least EF2 damage; rating subject to change.
Not surprising. Damages looked like EF2 or EF3. 5 people was killed because sirens never went off because of lightning cutting the power off.
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5 deaths – Major strucutral damage in western and northern parts of Woodward. Preliminary survey results revealed at least EF2 damage; rating subject to change.
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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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