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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394. RTSplayer
11:20 PM GMT on April 15, 2012
Um...

That's actually not good.

That cell is isolated.

Hopefully it's just a rain maker.

Victoria, TX cell

F0 65 dBZ 48,000 ft. 78 kg/m² 70% chance 100% chance 1.50 in. 14 knots W (263)
Member Since: January 25, 2012 Posts: 33 Comments: 1520
393. evilpenguinshan
11:19 PM GMT on April 15, 2012
I am so excited - gonna go watch the storm roll in from the highest point in minneapolis! if I get any good pictures I'll post em in an hour or so!
Member Since: March 20, 2012 Posts: 0 Comments: 506
391. RitaEvac
11:14 PM GMT on April 15, 2012


Member Since: July 14, 2008 Posts: 1 Comments: 9628
390. RTSplayer
11:12 PM GMT on April 15, 2012
Quoting Zappy:


I'm not talking about a contraption. I'm talking about improving building codes and creating new materials that can resist the force of a tornado. Granted, there might be some damage, but as new architecture styles (more aerodynamic) and technology come out, the damage will be less pronounced. So, with less damage indicators to go with, it would be harder to classify a tornado. Therefore, at some point in the future, the EF scale will have to be redesigned.


fine.

I believe in better design, and I believe that we could easily improve houses performance against EF2 and maybe even the low-end EF3 storms.


And if, as I said above, we ever got to mass produced graphene or nano-tubes composites, then we might even make houses survive direct hits from mid-level EF3's...

But what then?

EF4 and EF5 will rip your anchor bolts out of the foundation in a direct hit, even if the house somehow doesn't fail, the concrete it's bolted to will fail...


And hey, they're working on exotic concretes that are stronger too, and you could always mix in graphene or nano-tube fibers in the concrete, but of course, that costs more and more money...
Member Since: January 25, 2012 Posts: 33 Comments: 1520
389. TropicalAnalystwx13
11:12 PM GMT on April 15, 2012
Possible spin-up tornado in Arkansas:

Member Since: July 6, 2010 Posts: 113 Comments: 31430
388. Skyepony (Mod)
11:08 PM GMT on April 15, 2012
Thousands of people lost power in a strong thunderstorm Saturday night. The storm brought lightning, strong winds and very heavy rains. Many streets were flooded in Des Moines with cars stranded in the high water, including Fleur Drive. Mid-American Energy reported as many as 22,000 customers without electricity immediately following the storm. Crews worked through the night and by seven o'clock Sunday morning, that number was down to 4,000 customers without power. Some trees were blown over in Des Moines. There was damage to the roof of an apartment building at the Terrace Hill Apartments near 25th and Grand Avenue in Des Moines. Fans watching the Iowa Barnstormers game at Wells Fargo Arena in Des Moines were told to evacuate the building. The storm knocked out power to the building and that sent out an automated alarm to evacuate the building. The game was delayed about 30 minutes but resumed without incident KCCI's Amanda Lewis reported Sunday morning from Valley Junction in West Des Moines, where a tree is blocking one of the roadways. The roof has been ripped off of the old Wright Tree Service building in Valley Junction. Debris was scattered for blocks.
Member Since: August 10, 2005 Posts: 161 Comments: 37327
387. RTSplayer
11:07 PM GMT on April 15, 2012
I mean, for the sake of argument...

Suppose we soon figure out how to mass produce graphene and carbon nano-tubes on a scale large enough for the construction industry to use them as a primary building material...

and suppose we can make some sort of composite plastic-graphene, or composite metal-graphene material with it, which has realistically 10 times the tensile strength of steel...

Fine...

but what the heck do you anchor it to?

If a EF4 or EF5 tornado is strong enough to scour pavement, it'd still end up ripping a graphene house off it's concrete foundation, even if it was in one piece.
Member Since: January 25, 2012 Posts: 33 Comments: 1520
386. Zappy
11:06 PM GMT on April 15, 2012
Quoting RTSplayer:


I don't know what you think technology is going to do vs EF4 and EF5 tornadoes.

I find the "power" of the bottom thousand meters of a kilometer wide tornado with 150mph winds to be around 90 gigawatts, or 120 million horse-power.

I don't know what kind of sci-fi contraption you would envision killing a storm like that.

Unless we all live underground, there's just nothing you're ever going to do to prevent major structural damage and loss of life in these types of storms.


I'm not talking about a contraption. I'm talking about improving building codes and creating new materials that can resist the force of a tornado. Granted, there might be some damage, but as new architecture styles (more aerodynamic) and technology come out, the damage will be less pronounced. So, with less damage indicators to go with, it would be harder to classify a tornado. Therefore, at some point in the future, the EF scale will have to be redesigned.
Member Since: April 14, 2012 Posts: 0 Comments: 62
385. TropicalAnalystwx13
11:06 PM GMT on April 15, 2012
Quoting NCHurricane2009:


Amen...I nearly dodged a bullet with that Sanford-Raleigh tornado. I was living down there just before I moved up here to Michgian.

Seems all of today's tornadoes are popping up in SW Minnesota. Can anyone summarize how many/where tornadoes have developed? Thanks in advance....



There was a short-lived tornado this morning near Eldon in Cherokee County, Oklahoma. There was another weak tornado in Nebraska that caused minor damage to two buildings near Ericson in Wheeler County. The tornado lifted and later produced a rope tornado as it crossed into South Dakota. The cell continued northeastward and produced ANOTHER tornado in southwestern Minnesota, while a cell farther to the east produced a tornado just a short while ago.

Total tornadoes today: 5
Member Since: July 6, 2010 Posts: 113 Comments: 31430
384. NCHurricane2009
11:03 PM GMT on April 15, 2012
Quoting RTSplayer:
I'm seriously doubting our sub-tropical thingy.

However, there is some tiny evidence of a weak low level circulation and mid level circulation. It is not at all stacked though.



Its gonna take at least 48 hours from now before this looks anything like a subtropical cyclone...if it happens...
Member Since: September 15, 2009 Posts: 437 Comments: 3600
383. NCHurricane2009
11:02 PM GMT on April 15, 2012
Quoting TropicalAnalystwx13:
2012 is very active compared to previous years. I should note however that 2011 began its epic ramp-up in tornado activity today. Tomorrow is the one year anniversary of the Sanford-Raleigh tornado.







Amen...I nearly dodged a bullet with that Sanford-Raleigh tornado. I was living down there just before I moved up here to Michgian.

Seems all of today's tornadoes are popping up in SW Minnesota. Can anyone summarize how many/where tornadoes have developed? Thanks in advance....
Member Since: September 15, 2009 Posts: 437 Comments: 3600
382. CaicosRetiredSailor
11:00 PM GMT on April 15, 2012
ounwcm
@ounwcm

Headed home after surveying Woodward tornado damage. Prelim rating EF3. Still more analysis to do . #okwx @emilyrsutton @EricFisherTWC

12 minutes ago via Twitter
Member Since: July 12, 2007 Posts: 0 Comments: 5996
381. TropicalAnalystwx13
10:55 PM GMT on April 15, 2012
2012 is very active compared to previous years. I should note however that 2011 began its epic ramp-up in tornado activity today. Tomorrow is the one year anniversary of the Sanford-Raleigh tornado.





Member Since: July 6, 2010 Posts: 113 Comments: 31430
380. LargoFl
10:54 PM GMT on April 15, 2012
TORNADO WARNING
MNC085-143-152315-
/O.NEW.KMPX.TO.W.0003.120415T2238Z-120415T2315Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
538 PM CDT SUN APR 15 2012

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* TORNADO WARNING FOR...
SOUTH CENTRAL MCLEOD COUNTY IN CENTRAL MINNESOTA...
NORTH CENTRAL SIBLEY COUNTY IN CENTRAL MINNESOTA...

* UNTIL 615 PM CDT

* AT 534 PM CDT...RADAR INDICATED A STORM CAPABLE OF PRODUCING A
TORNADO. THE MOST DANGEROUS PART OF THE STORM WAS 7 MILES SOUTHEAST
OF FERNANDO...OR ABOUT 5 MILES NORTH OF WINTHROP...AND MOVING NORTH
AT 50 MPH. THIS STORM IS SEPERATE FROM THE OTHER TORNADIC STORM
NEAR BISCAY.

* LOCATIONS IN THE WARNING INCLUDE...
NEW AUBURN...
BROWNTON...
FERNANDO...
SUMTER...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

WHEN A TORNADO WARNING IS ISSUED BASED ON RADAR...IT MEANS THAT
STRONG ROTATION HAS BEEN DETECTED IN THE STORM. A TORNADO MAY ALREADY
BE ON THE GROUND...OR IS EXPECTED TO DEVELOP SHORTLY.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1100 PM CDT SUNDAY EVENING
FOR SOUTHERN MINNESOTA AND NORTHWESTERN WISCONSIN.

&&

LAT...LON 4476 9442 4476 9415 4463 9420 4464 9447
TIME...MOT...LOC 2238Z 189DEG 45KT 4466 9432

$$

JLT
Member Since: August 6, 2011 Posts: 4 Comments: 36850
379. NCHurricane2009
10:54 PM GMT on April 15, 2012
Quoting winter123:
My subtropical sense is tingling. (right side of this image). Glad it has model support, It's not just me being crazy. I believe only one named system has ever formed in April. A few years ago. Forget the name. It formed in a very similar manner. Vigorous upper level low, digging down and cutting off, and large blocking high to the west.


It was Ana in 2003...

Posted yet another tropical update in lieu of the subtropical cyclone potential. I was not planning to begin these detailed tropical updates until June 1, but decided to preview them so y'all can give opinions on how to make them better...etc....

My update today summarizes a lot (but not all) of the tornadoes that happened yesterday.
Member Since: September 15, 2009 Posts: 437 Comments: 3600
378. RTSplayer
10:46 PM GMT on April 15, 2012
Quoting Zappy:


If we continue the trend of urbanization, there might not be as many trees available to measure off of. And, if we developed mass transit, than roads would become anachronistic. Like I said. as technology improves, then the enhanced Fujita scale might go out of date.


I don't know what you think technology is going to do vs EF4 and EF5 tornadoes.

I find the "power" of the bottom thousand meters of a kilometer wide tornado with 150mph winds to be around 90 gigawatts, or 120 million horse-power.

I don't know what kind of sci-fi contraption you would envision killing a storm like that.

Unless we all live underground, there's just nothing you're ever going to do to prevent major structural damage and loss of life in these types of storms.
Member Since: January 25, 2012 Posts: 33 Comments: 1520
377. TropicalAnalystwx13
10:46 PM GMT on April 15, 2012
Three tornado warnings ongoing at this time. There has been a confirmed tornado on the ground with the western cell as of 5:29 pm CDT, but I think it has lifted now. The easternmost cell is becoming more dominant.

Member Since: July 6, 2010 Posts: 113 Comments: 31430
376. CaicosRetiredSailor
10:44 PM GMT on April 15, 2012
Witchita 78 aerial photos:

http://www.kansas.com/2012/04/15/2297609/aerial-p hotos-of-storm-damage.html
Member Since: July 12, 2007 Posts: 0 Comments: 5996
375. GeoffreyWPB
10:43 PM GMT on April 15, 2012
Member Since: September 10, 2007 Posts: 0 Comments: 10972
373. TropicalAnalystwx13
10:40 PM GMT on April 15, 2012
Quoting nofailsafe:


Yep, this looks like a dud. Just passing dark clouds around here.

Member Since: July 6, 2010 Posts: 113 Comments: 31430
372. nigel20
10:39 PM GMT on April 15, 2012
Member Since: November 6, 2010 Posts: 11 Comments: 7828
371. winter123
10:38 PM GMT on April 15, 2012
My subtropical sense is tingling. (right side of this image). Glad it has model support, It's not just me being crazy. I believe only one named system has ever formed in April. A few years ago. Forget the name. It formed in a very similar manner. Vigorous upper level low, digging down and cutting off, and large blocking high to the west.
Member Since: July 29, 2006 Posts: 28 Comments: 1777
370. nofailsafe
10:23 PM GMT on April 15, 2012
Quoting DavidHOUTX:


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.


Yep, this looks like a dud. Just passing dark clouds around here.
Member Since: June 18, 2010 Posts: 3 Comments: 941
369. MAweatherboy1
10:22 PM GMT on April 15, 2012
These storms aren't even in a slight risk area... Their lack of motion makes them a potential flood hazard

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
515 PM CDT SUN APR 15 2012

THE NATIONAL WEATHER SERVICE IN CORPUS CHRISTI HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
WESTERN GOLIAD COUNTY IN SOUTH CENTRAL TEXAS

* UNTIL 600 PM CDT

* AT 511 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
PAIR OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING GOLF BALL SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THESE STORMS WERE
LOCATED ALONG A LINE EXTENDING FROM CHARCO TO 8 MILES NORTHWEST OF
BERCLAIR...OR ALONG A LINE EXTENDING FROM 12 MILES NORTHWEST OF
GOLIAD TO 16 MILES NORTH OF BEEVILLE. THESE STORMS WERE NEARLY
STATIONARY.

* LOCATIONS IMPACTED INCLUDE...
BERCLAIR...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD
TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.

&&

LAT...LON 2881 9726 2850 9752 2850 9755 2853 9759
2852 9763 2854 9770 2862 9773 2865 9776
2870 9774 2892 9743 2893 9741
TIME...MOT...LOC 2215Z 285DEG 1KT 2877 9755 2862 9766

$$

GW
Member Since: February 11, 2012 Posts: 82 Comments: 7609
368. LargoFl
10:20 PM GMT on April 15, 2012
starting to pick up just a lil......FLASH FLOOD WARNING
MOC029-105-125-131-161-169-160400-
/O.NEW.KSGF.FF.W.0011.120415T2204Z-120416T0400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000 Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SPRINGFIELD MO
504 PM CDT SUN APR 15 2012

THE NATIONAL WEATHER SERVICE IN SPRINGFIELD HAS ISSUED A

* FLASH FLOOD WARNING FOR...
EASTERN CAMDEN COUNTY IN CENTRAL MISSOURI...
EASTERN LACLEDE COUNTY IN SOUTHWEST MISSOURI...
MARIES COUNTY IN CENTRAL MISSOURI...
MILLER COUNTY IN CENTRAL MISSOURI...
PHELPS COUNTY IN EAST CENTRAL MISSOURI...
PULASKI COUNTY IN CENTRAL MISSOURI...

* UNTIL 1100 PM CDT.

* AT 500 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
THUNDERSTORMS WITH VERY HEAVY RAINFALL MOVING ACROSS THE WARNED
AREA. RADAR ESTIMATED THAT THESE STORMS WERE PRODUCING RAINFALL
AMOUNTS OF ONE TO TWO INCHES IN A SHORT PERIOD OF TIME.

* RUNOFF FROM THIS EXCESSIVE RAINFALL ON ALREADY SATURATED GROUND
WILL CAUSE FLASH FLOODING TO OCCUR. CREEKS...STREAMS AND LOW
WATER CROSSINGS WILL BE ESPECIALLY SUSCEPTIBLE TO THE DANGERS OF
FLASH FLOODING.

THIS WARNING INCLUDES BUT IS NOT LIMITED TO THE FOLLOWING LOW WATER
CROSSINGS...

ROUTE HH IN TUSCUMBIA...
ROUTE N AT THE MARIES RIVER EAST OF BRINKTOWN...
HIGHWAY 8 FIVE MILES SOUTHEAST OF SAINT JAMES...
ROUTE O AT JONES CREEK JUST SOUTH OF DIXON...
ROUTE H...3 MILES NORTHWEST OF STOUTLAND.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS
SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE.

&&

LAT...LON 3843 9241 3834 9240 3833 9223 3834 9220
3830 9218 3829 9163 3816 9164 3815 9151
3779 9153 3779 9180 3760 9182 3761 9224
3748 9225 3748 9270 3844 9262

$$

FOSTER
Member Since: August 6, 2011 Posts: 4 Comments: 36850
367. Zappy
10:18 PM GMT on April 15, 2012
Quoting weatherh98:


There will always be trees and roads to measure things off of.


If we continue the trend of urbanization, there might not be as many trees available to measure off of. And, if we developed mass transit, than roads would become anachronistic. Like I said. as technology improves, then the enhanced Fujita scale might go out of date.
Member Since: April 14, 2012 Posts: 0 Comments: 62
366. MAweatherboy1
10:18 PM GMT on April 15, 2012
Quoting wxgeek723:
Of note - I've compiled some interesting facts for the list slated for this hurricane season.

It is, in some senses, the most 'harmless' list when compared to the others if you will. Especially for the US. Looking back anyway.

-It is the least tarnished list with only 3 names that have been retired since its first usage in 1982. Gordon, Joyce, and Kirk are the replacement names for Gilbert, Joan, and Keith.

-While every other list has at least reached its P name, this list has never even used its O name. The furthest a season ever got down the list was 2000 with Nadine.

-It seems to have the worst luck with El Nino(1982, 1994, 2006, perhaps this year).

-Every time it fell on an El Nino year, the list made it through without having a name retired.

-Also, none of the El Nino years saw a named storm form in October.

-Following Irene's retirement, Isaac on this list is the only remaining original I name implemented in the 70s.

-Beryl is the only B name that has never reached hurricane status routinely since the list change in the 70s.

-It has recorded the most recent occurrence of no major hurricanes all year - 1994.

-Only one hurricane on this list has ever made landfall in the US - Category 1 Florence in 1988. Several others came close and Debby in 2000 gave Florida a small scare.

These were just some odd facts I noticed. I figured people would be intrigued since the nomenclature system is part of what got many of us interested in tracking hurricanes.

I'm not saying any of this applies to this season. Some, if not all (God forbid) of these statements could be rendered false by this season. Even if not this season, we will of course continue to use this list in the future so its decent behavior cannot last forever. Plus, the list does have some history.

Ironically, Gilbert in 1988 was the strongest Atlantic hurricane on record at 888MB until Wilma.

Tropical Storm Alberto was a major flood disaster and is a good precedent to Allison, though Alberto was never retired. To this day it is disputed whether or not Alberto should be on the list.

Hurricane Gordon in 1994 caused mass casualities and flooding in Haiti.

Finally, Hurricane Alberto in 2000 was one of the longest lived hurricanes in the Atlantic.

That is all.

Very impressive list of facts... Sure, it doesn't really matter, but I'm impressed by your dedication in coming up with all that... +1
Member Since: February 11, 2012 Posts: 82 Comments: 7609
365. wxgeek723
10:14 PM GMT on April 15, 2012
Of note - I've compiled some interesting facts for the list slated for this hurricane season.

It is, in some senses, the most 'harmless' list when compared to the others if you will. Especially for the US. Looking back anyway.

-It is the least tarnished list with only 3 names that have been retired since its first usage in 1982. Gordon, Joyce, and Kirk are the replacement names for Gilbert, Joan, and Keith.

-While every other list has at least reached its P name, this list has never even used its O name. The furthest a season ever got down the list was 2000 with Nadine.

-It seems to have the worst luck with El Nino(1982, 1994, 2006, perhaps this year).

-Every time it fell on an El Nino year, the list made it through without having a name retired.

-Also, none of the El Nino years saw a named storm form in October.

-Following Irene's retirement, Isaac on this list is the only remaining original I name implemented in the 70s.

-Beryl is the only B name that has never reached hurricane status routinely since the list change in the 70s.

-It has recorded the most recent occurrence of no major hurricanes all year - 1994.

-Only one hurricane on this list has ever made landfall in the US - Category 1 Florence in 1988. Several others came close and Debby in 2000 gave Florida a small scare.

These were just some odd facts I noticed. I figured people would be intrigued since the nomenclature system is part of what got many of us interested in tracking hurricanes.

I'm not saying any of this applies to this season. Some, if not all (God forbid) of these statements could be rendered false by this season. Even if not this season, we will of course continue to use this list in the future so its decent behavior cannot last forever. Plus, the list does have some history.

Ironically, Gilbert in 1988 was the strongest Atlantic hurricane on record at 888MB until Wilma.

Tropical Storm Alberto was a major flood disaster and is a good precedent to Allison, though Alberto was never retired. To this day it is disputed whether or not Alberto should be on the list.

Hurricane Gordon in 1994 caused mass casualities and flooding in Haiti.

Finally, Hurricane Alberto in 2000 was one of the longest lived hurricanes in the Atlantic.

That is all.
Member Since: August 28, 2008 Posts: 79 Comments: 3451
364. Tropicsweatherpr
10:13 PM GMT on April 15, 2012
Quoting sunlinepr:




That Salina Tornado was very impressive.
Member Since: April 29, 2009 Posts: 75 Comments: 13998
363. MAweatherboy1
10:12 PM GMT on April 15, 2012
This is a little off topic but very important... It discusses how global warming is endangering coral

Link
Member Since: February 11, 2012 Posts: 82 Comments: 7609
362. LargoFl
10:08 PM GMT on April 15, 2012
COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
419 PM CDT SUN APR 15 2012

...STRONG RIP CURRENTS AND ABOVE NORMAL TIDES...

.STRONG RIP CURRENTS WILL CONTINUE INTO THE EVENING WITH THE
LARGE WAVE RUN UP ONTO THE BEACH. BEACH FLOODING WILL CONTINUE
THROUGH THE EVENING SLOWLY IMPROVING MONDAY.

TXZ214-235>238-160600-
/O.CON.KHGX.CF.S.0002.000000T0000Z-120416T0600Z/
BRAZORIA-CHAMBERS-GALVESTON-JACKSON-MATAGORDA-
419 PM CDT SUN APR 15 2012

...STRONG RIP CURRENTS AND ABOVE NORMAL TIDES...

* COASTAL FLOODING...LARGE SWELLS SPREADING ACROSS THE BEACHES
HAS LED TO HIGH WATER ON THE BEACHES AND STRONG RIP CURRENTS.
WATER MAY ENCROACH ON HIGHWAY 87 NEAR HIGH ISLAND TONIGHT
AND OTHER FLOOD PRONE BEACH AREA.

* TIMING...THE STRONG RIP CURRENTS WILL CONTINUE THROUGH THIS
EVENING.

* IMPACTS...THE STRONG RIP CURRENTS CAN BE LIFE THREATENING TO
ANYONE ENTERING THE WATER. SWIMMING IS NOT ADVISED THROUGH THE
PERIOD.

IF YOU BECOME CAUGHT IN A RIP CURRENT DO NOT PANIC. REMAIN CALM
AND BEGIN TO SWIM PARALLEL TO THE SHORE. OUNCE YOU ARE AWAY FROM
THE FORCE OF THE RIP CURRENT...BEGIN TO SWIM BACK TO THE BEACH.
DO NOT ATTEMPT TO SWIM DIRECTLY AGAINST A RIP CURRENT.

$$
Member Since: August 6, 2011 Posts: 4 Comments: 36850
361. sunlinepr
10:06 PM GMT on April 15, 2012
Member Since: August 2, 2010 Posts: 21 Comments: 9693
360. LargoFl
10:06 PM GMT on April 15, 2012
Quoting MAweatherboy1:
TVS on a tornado warned storm in southern MN
here is the the notice.........................TORNADO WARNING
MNC129-143-152230-
/O.NEW.KMPX.TO.W.0001.120415T2152Z-120415T2230Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
452 PM CDT SUN APR 15 2012

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* TORNADO WARNING FOR...
EASTERN RENVILLE COUNTY IN CENTRAL MINNESOTA...
NORTHWESTERN SIBLEY COUNTY IN CENTRAL MINNESOTA...

* UNTIL 530 PM CDT

* AT 449 PM CDT...RADAR INDICATED A STORM CAPABLE OF PRODUCING A
TORNADO. THE MOST DANGEROUS PART OF THE STORM WAS 6 MILES NORTH OF
FAIRFAX...AND MOVING NORTH AT 45 MPH.

* LOCATIONS IN THE WARNING INCLUDE...
FAIRFAX...
HECTOR...
BUFFALO LAKE...
LAKESIDE...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

WHEN A TORNADO WARNING IS ISSUED BASED ON RADAR...IT MEANS THAT
STRONG ROTATION HAS BEEN DETECTED IN THE STORM. A TORNADO MAY ALREADY
BE ON THE GROUND...OR IS EXPECTED TO DEVELOP SHORTLY.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1100 PM CDT SUNDAY EVENING
FOR SOUTHERN MINNESOTA AND NORTHWESTERN WISCONSIN.

&&

LAT...LON 4453 9483 4489 9482 4489 9454 4489 9453
4451 9461
TIME...MOT...LOC 2153Z 188DEG 37KT 4465 9468

$$

JLT
Member Since: August 6, 2011 Posts: 4 Comments: 36850
359. Chicklit
10:05 PM GMT on April 15, 2012


LinkLoop
Member Since: July 11, 2006 Posts: 14 Comments: 11172
358. MAweatherboy1
10:03 PM GMT on April 15, 2012
TVS on a tornado warned storm in southern MN
Member Since: February 11, 2012 Posts: 82 Comments: 7609
357. sunlinepr
10:02 PM GMT on April 15, 2012


Member Since: August 2, 2010 Posts: 21 Comments: 9693
356. Ameister12
10:00 PM GMT on April 15, 2012
Significant tornadoes (EF2-EF5) of last night's outbreak, so far.

Ellsworth County, KS Tornado: EF4

Wichita, KS Tornado: EF3

Thurman, IA Tornado: EF2

Creston, IA Tornado: EF2

Woodward, OK Tornado: EF2

All tornado ratings are preliminary so far and may have been stronger.

Member Since: August 9, 2009 Posts: 10 Comments: 4898
355. TropicalAnalystwx13
10:00 PM GMT on April 15, 2012
Quoting RTSplayer:
Most of today's storms are kinda pathetic at the moment.

Only a few of them even have VIL above 30...

It will definitely ramp up in the next hour or so.

Conditions are coming together better today than they were yesterday. Fortunately for the residents across the MDT risk area, they're not as abundant/plentiful as yesterday.
Member Since: July 6, 2010 Posts: 113 Comments: 31430
354. akailm
9:57 PM GMT on April 15, 2012

Quoting RTSplayer:


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.

Hurricane standards would certainly help, but the forces involved are simply stronger the costs and engineering involved. a safe room or structure could be a solution, but a whole structure protection is cost prohibitive..
Member Since: September 11, 2007 Posts: 0 Comments: 25
353. RTSplayer
9:56 PM GMT on April 15, 2012
Most of today's storms are kinda pathetic at the moment.

Only a few of them even have VIL above 30...
Member Since: January 25, 2012 Posts: 33 Comments: 1520
352. weatherh98
9:54 PM GMT on April 15, 2012
Quoting Zappy:
The enhanced Fujita scale is based on damage degrees and indicators. So, as technology improves, and more efficient and resilient infrastructure is built, and less damage from tornados occur, it will be increasingly difficult to rate each tornado. What is the future of the scale? I think by then, we will have the technology to directly measure the wind speeds of tornado, and the enhanced Fujita scale will become a Safir-Simpson scale of sorts, but for tornados.


There will always be trees and roads to measure things off of.
Member Since: June 17, 2011 Posts: 11 Comments: 6461
351. RTSplayer
9:53 PM GMT on April 15, 2012
I'm seriously doubting our sub-tropical thingy.

However, there is some tiny evidence of a weak low level circulation and mid level circulation. It is not at all stacked though.

Member Since: January 25, 2012 Posts: 33 Comments: 1520
4 watches now, makes me think something may actually happen....
Member Since: June 17, 2011 Posts: 11 Comments: 6461
Quoting MAweatherboy1:
I'm not sure if I've ever seen a storm move as fast as that one in central MO... If it was tornado producing and still moving at 90 mph we would have a huge problem

that's a storm on steroids...whats up MAweatherboy1?
Member Since: November 6, 2010 Posts: 11 Comments: 7828
Quoting TropicalAnalystwx13:


Lets assume that thats 3-5 tornadoes i guess
Member Since: June 17, 2011 Posts: 11 Comments: 6461
Good evening all!
Member Since: November 6, 2010 Posts: 11 Comments: 7828
I'm not sure if I've ever seen a storm move as fast as that one in central MO... If it was tornado producing and still moving at 90 mph we would have a huge problem
Member Since: February 11, 2012 Posts: 82 Comments: 7609
345. Zappy
The enhanced Fujita scale is based on damage degrees and indicators. So, as technology improves, and more efficient and resilient infrastructure is built, and less damage from tornados occur, it will be increasingly difficult to rate each tornado. What is the future of the scale? I think by then, we will have the technology to directly measure the wind speeds of tornado, and the enhanced Fujita scale will become a Safir-Simpson scale of sorts, but for tornados.
Member Since: April 14, 2012 Posts: 0 Comments: 62
Member Since: July 6, 2010 Posts: 113 Comments: 31430

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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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