Rare Japanese tornado kills 1, injures 48

By: Dr. Jeff Masters , 1:28 PM GMT on May 07, 2012

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A rare strong tornado ripped through Ibaraki Prefecture in eastern Japan 30 miles northeast of Tokyo on Sunday, killing a teenage boy, injuring 48 people, and damaging or destroying 890 buildings. The tornado carved a path of destruction 15 km long and 500 meters wide, said the Japan Meteorological Agency. The tornado was given a preliminary rating of F-2, with winds of 113 - 157 mph (Japan uses the traditional "F" scale to rate tornadoes, not the "EF" scale used in the U.S.) The tornado also damaged homes in a housing complex in Tsukuba where 20 people from seven families from Fukushima Prefecture had evacuated following the nuclear crisis at the Fukushima Daiichi power plant, caused by the earthquake and tsunami of March 2011. I bet those families are feeling disaster-prone!


Video 1. A rare tornado in Japan hits approximately 30 miles northeast of Tokyo on May 6, 2012.

Japan's tornado climatology
Tornadoes are rare in Japan, due to the fact the nation is surrounded by ocean, which tends to stabilize the air. Between 1961 - 2010, an average of 15 tornadoes per year hit Japan, according to the Japan Meteorological Agency. Only four F-3 tornadoes have hit Japan. The most recent F-3 hit on November 7, 2006, in the Wakasa area of Saroma, Hokkaido. Nine people died and 26 were injured. Over 30 buildings, including a dwelling, warehouses and temporary structures were damaged or destroyed. No violent F-4 or F-5 tornadoes have been recorded in Japan, according the Japan Meteorological Agency, though other sources list a December, 1990 tornado as having been an F-4. Wunderground's weather historian Christopher C. Burt has more details in his latest post, Deadliest Tornadoes. Only one F-2 tornado hit Japan in both 2010 and 2011. A 1997 study published in the Journal of Climate found that Japanese tornadoes occurred most frequently in September and least frequently in March, and that typhoons were responsible for about 20% of all the tornadoes. A list of Asian tornado outbreaks maintained at Wikipedia lists the deadliest Japanese tornado as one on 6 September, 1881, which killed 16 people.


Figure 1. Distribution of tornadoes in Japan, 1961 - 2010. Image credit: Japan Meteorological Agency.

Jeff Masters

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Quoting WxGeekVA:


I actually did talk to SPL though and I was one of the people that he didn't dislike... And he told me he wouldn't comment here again so...

Yeah he WU mailed me a while ago and said he's done with the site... He did create another account before that though, but he didn't post much with it.

He liked me too :)
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Texas storm

http://radar.weather.gov/radar.php?rid=crp&produc t=N0R&overlay=11101111&loop=yes
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Quoting TropicalAnalystwx13:

Pssst...

There are liars in this world.


I actually did talk to SPL though and I was one of the people that he didn't dislike... And he told me he wouldn't comment here again so...
Member Since: September 3, 2011 Posts: 13 Comments: 3468
Quoting capeflorida:
Tribucanes is SPLbeater and he is going to save us from the devil!!!
well iam still here
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Look at the Nogaps..

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Quoting WxGeekVA:


No, he isn't. I asked him myself.

Pssst...

There are liars in this world.
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Quoting capeflorida:
Tribucanes is SPLbeater and he is going to save us from the devil!!!


No, he isn't. I asked him myself.
Member Since: September 3, 2011 Posts: 13 Comments: 3468
Tribucanes is SPLbeater and he is going to save us from the devil!!!
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Quoting RitaEvac:
It's all Lake Travis bound.....the skies will open tonight and fill many holes with water.



Good for Texas
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From all directions, I shall deliver water, and quench the lands thirst, and water shall flow again where everything will grow and prosper



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242. txjac
Quoting RitaEvac:
It's all Lake Travis bound.....the skies will open tonight and fill many holes with water.



I certainly hope that's where it goes ....and then sits there for a bit ...needed badly
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It's all Lake Travis bound.....the skies will open tonight and fill many holes with water.

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240. xcool


12z
Possible tropical development but I'm not putting much faith ;)
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Outta control weather out here



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Quoting BDAwx:

Hey all! So... uhh... What happened to the Bermuda-Azores High?

It's sometimes replaced by intense areas of low pressure. If the timing is right, it can prove destructive to the USA East Coast by providing a path similar to the one that the 1938 New England hurricane took.

Nothing terribly unusual.
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Quoting Hangten:


They probably got them from Grothar in the first place. How old is this guy


as I heard an old Gullah story teller once say....Grothar has been here since "before the rocks were hard..."
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Quoting BDAwx:

Hey all! So... uhh... What happened to the Bermuda-Azores High?


Hmmmmmm. It looks like it is vacationing just north of the Carolinas. ... Hey, presslord. Look out your north window and see if you can spot it. ;-)

I do not know. Was there not mention a few weeks ago that this should be setting up soon, if not already in place? This looks a bit unusual, to me.
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Quoting BDAwx:

Hey all! So... uhh... What happened to the Bermuda-Azores High?

It has been carved in twain!
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Thank you to those who shared the radar imagery from central/western Texas and the FL peninsula. Those areas can really use the rain and it's much welcome relief. I was teased in my area today but managed .32 yesterday evening. I'll take it.
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232. BDAwx

Hey all! So... uhh... What happened to the Bermuda-Azores High?
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Looking back at Jamaica's wettest tropical cyclone and Nov 1909 hurricane was the wettest with 135 inches which is quite incredible, Flora 1963 came in second with 60 inches, Michelle 2001 came in third with 37.44 inches and Nicole 2010 came in fourth with 37.42 inches.
Member Since: November 6, 2010 Posts: 11 Comments: 7880
Picked up 2.31" in the rain bucket and more on the way.

Member Since: October 26, 2011 Posts: 0 Comments: 2651
Former 19S

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Member Since: July 17, 2009 Posts: 69 Comments: 25442
MONTH AGO


TODAY
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Quoting Grothar:
Looks like it is warming.


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Destined for widespread rains in TX
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Quoting LargoFl:
Yes and np there..happy posting


I thought I scared you off, Glad you're back.
Member Since: July 17, 2009 Posts: 69 Comments: 25442
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Severe watch for Central TX

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Interesting discussion by NWS San Juan talking about all the factors that will be in play from now thru early next week. According to them,things should start to dry out slowly as the week progresses. We will see what occurs in real time as some of the Eastern Caribbean islands have been above normal in the rainfall this year,and a more drying pattern may not be a bad thing for them.

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN JUAN PR
416 PM AST MON MAY 7 2012

.SYNOPSIS...AT UPPER LEVELS...A FAST MOVING SHORT WAVE TROUGH HAS MOVED
PAST PUERTO RICO TOWARD THE EAST AND ITS PASSAGE WILL ALLOW THE
CORE OF THE JET OVER THE AREA TO MOVE JUST TO THE NORTH TUESDAY
THROUGH THURSDAY MORNING. ON THURSDAY A SECOND WEAK TROUGH WILL
MOVE INTO THE AREA AND A THIRD WILL PASS THROUGH ON SUNDAY
FOLLOWED BY NORTHWESTERLY FLOW.

AT MID LEVELS...A WEAK TROUGH WILL FLATTEN OUT DURING THE NEXT 12
HOURS...WHILE A SECOND DIGS INTO THE WESTERN CARIBBEAN AND MOVES
TOWARD THE AREA DURING THE WEEK. HIGH PRESSURE BUILDS IN OVER THE
CARIBBEAN ON FRIDAY AND CONTINUES THROUGH THE WEEKEND.

AT LOWER LEVELS...A BROAD AND WEAK TROUGH IS BRINGING CONSIDERABLE
MOISTURE CONVERGENCE OVER THE LESSER ANTILLES THAT WILL SLOWLY
DRIFT BACK OVER THE FORECAST AREA AS IT WEAKENS TUESDAY THROUGH
THURSDAY. A WIND SURGE WILL ARRIVE FRIDAY NIGHT WITH AN AREA OF
MUCH DRIER AIR BETWEEN 850 AND 700 MB AND CAUSE SHOWER ACTIVITY
OVER THE AREA IN GENERAL TO DECREASE OVER THE WEEKEND.

&&

.DISCUSSION...AS MORNING SHOWERS OVER THE NORTHEAST SLOPES OF
PUERTO RICO DISSIPATED...SHOWERS OVER THE CORDILLERA CENTRAL
FORMED ALONG THE ENTIRE LENGTH OF THE ISLANDS. SHOWERS ALSO FORMED
AROUND SAINT CROIX AND NORTH OF SAINT THOMAS AND SAINT JOHN DURING
THE MIDDAY HOURS. SHOWERS WERE ALSO SEEN LINGERING OVER AND BEYOND
THE SOUTHEAST CORNER OF THE FORECAST AREA IN THE STATIONARY BAND
OF CONVERGENCE THAT STRETCHES FROM SOUTH AMERICA ACROSS THE
SOUTHEASTERN CARIBBEAN AND THE LESSER ANTILLES.

HIGH PRESSURE OFF OF CAPE COD WILL BEGIN PUSHING THE LARGE AREA
OF LOW PRESSURE OVER MOST OF THE NORTHEAST AND NORTH CENTRAL
ATLANTIC TO THE EAST AND TURN WIND FLOW OVER US TO THE SOUTHEAST.
BY MID WEEK THE HIGH WILL NOSE TOWARD THE AREA ALONG 60 WEST. BUT
AS IT CONTINUES EAST FLOW OVER THE WESTERN ATLANTIC WILL AGAIN
BECOME STRONGLY SOUTHERLY. THIS AND THE UPPER LEVEL TROUGH PASSAGE
WILL CAUSE THE BAND TO WEAKEN AND GRADUALLY MOVE NORTHWEST BACK
OVER AND NORTHWEST OF THE AREA TUESDAY THROUGH THURSDAY INCREASING
MOISTURE THAT WILL CONTINUE OVER THE AREA THURSDAY AND FRIDAY.
ON FRIDAY NIGHT AND SATURDAY DRIER AIR ARRIVES WITH A WIND SURGE
FROM THE SOUTHEAST CARRYING SOME AFRICAN DUST. AT THIS TIME THE
DAILY CYCLE OF SHOWERS WILL BE LIMITED BY LOWER MOISTURE CONTENT.
SURFACE AND LOWER LEVEL WINDS WILL SHIFT TO THE EAST ON SUNDAY AND
BANDS OF MOISTURE WILL PASS THROUGH THE AREA ON FLOW CREATED BY
HIGH PRESSURE THAT FINALLY IS ABLE TO REGAIN CONTROL OF THE
ATLANTIC.

IT SHOULD BE NOTED THAT THE NAM AND THE GFS DIVERGE CONSIDERABLY
BETWEEN NOW AND 84 HOURS WITH THE NAM TAKING PRECIPITABLE WATER
BELOW 1.6 INCHES AND THE GFS TAKING IT ABOVE 2 INCHES BY THURSDAY
AFTERNOON. THE ECMWF AND THE GENERAL PATTERN SEEM TO INDICATE THAT
THE NAM IS THE OUTLIER AND HENCE HAVE IGNORED ITS DRYING TREND.
NEVERTHELESS SHOWERS WILL BE LIMITED SOMEWHAT TOMORROW UNTIL
MOISTURE FROM THE CONVERGENCE BAND TO THE SOUTHEAST CAN RETURN.

&&

.AVIATION...
VFR CONDS ARE EXPECTED AT ALL TAFS SITES THROUGH THE FORECAST
PERIOD. SOME SHRA/TSRA WILL CONTINUE TO AFFECT PARTS OF THE
CORDILLERA CENTRAL THROUGH EARLY THIS EVENING. AS A RESULT...
MOUNTAIN OBSCURATIONS ARE POSSIBLE WITH THE SHRA/TSRA. LLVL WINDS
WILL CONTINUE FOR THE NORTHEAST AT AROUND 10 KTS...VEERING TO THE
EAST AFTER 08/06Z.

&&

.MARINE...GENTLE TO MODERATE WINDS WILL GRADUALLY INCREASE DURING
THE NEXT 7 DAYS...BUT SEAS WILL REMAIN BELOW 7 FEET DURING THE
PERIOD. SCATTERED THUNDERSTORMS SHOULD BE EXPECTED MAINLY
WEDNESDAY NIGHT THROUGH FRIDAY AS MOISTURE RETURNS TO THE AREA.


&&

.PRELIMINARY POINT TEMPS/POPS...
SJU 75 85 75 86 / 30 30 40 40
STT 75 84 76 86 / 30 30 40 30
Member Since: April 29, 2009 Posts: 75 Comments: 14070
Quoting jeffs713:

Regardless of his age, Grothar is quite wise, and rarely becomes involved in the petty bickering that frequents the ranks of the internet's denziens.


Thanks, jeff. (But I watch, though)
Member Since: July 17, 2009 Posts: 69 Comments: 25442
Quoting HuracanTaino:
Our native Parrot(Amazona portoricensis) has been an endangered specie long before Hugo striked, but both hurricanes Hugo and George, didn't help much in the efforts for saving the bird. The population right now are 39 parrots in their natural habitat , in "El Yunque",but there are random populations through out the mountains of the Island , estimated in about 500. Nevertheless sciencetist are working hard to preserve the last few left in captivity. The number has risen from 50 to 350 in the past 5 years, as I said, in captivity.

That's good to know...i hope that upward trend continues
Member Since: November 6, 2010 Posts: 11 Comments: 7880
Quoting Grothar:


Hey, Largo. I hope you got my message. I am sorry you misunderstood my blog the other day. I meant it as a shot to me, not you. Again, I apologize for the misunderstanding.
Yes and np there..happy posting
Member Since: August 6, 2011 Posts: 4 Comments: 37050
2010's first tropical wave was analyzed on this date...this year the East Atlantic is pretty much dead.

2011's first tropical wave: May 17.

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Looks like it is warming.

Member Since: July 17, 2009 Posts: 69 Comments: 25442
Quoting jeffs713:

Regardless of his age, Grothar is quite wise, and rarely becomes involved in the petty bickering that frequents the ranks of the internet's denziens.


He makes a good waffle too.....

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Quoting jeffs713:

Regardless of his age, Grothar is quite wise, and rarely becomes involved in the petty bickering that frequents the ranks of the internet's denziens.


Very true. Wisdom comes with age and Grothar is quite wise, even for his age.
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Quoting Bielle:


In the extremely unusual instance where Grothar does not have the answer immediately at hand, Google can be your friend. Here's an article from 2011 about the increase in the parrot population: Link

Thanks Bielle
Member Since: November 6, 2010 Posts: 11 Comments: 7880
Quoting Grothar:
Big trough.



Big pail

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Quoting Some1Has2BtheRookie:


No one knows for sure how old Grothar is. You will find notations of his presence throughout the written language and even on some cave drawings. Before that? No one really knows.

Regardless of his age, Grothar is quite wise, and rarely becomes involved in the petty bickering that frequents the ranks of the internet's denziens.
Member Since: Posts: Comments:
Big trough.

Member Since: July 17, 2009 Posts: 69 Comments: 25442
Our native Parrot(Amazona portoricensis) has been an endangered specie long before Hugo striked, but both hurricanes Hugo and George, didn't help much in the efforts for saving the bird. The population right now are 39 parrots in their natural habitat , in "El Yunque",but there are random populations through out the mountains of the Island , estimated in about 500. Nevertheless sciencetist are working hard to preserve the last few left in captivity. The number has risen from 50 to 350 in the past 5 years, as I said, in captivity.
Member Since: Posts: Comments:
Quoting Hangten:


They probably got them from Grothar in the first place. How old is this guy


No one knows for sure how old Grothar is. You will find notations of his presence throughout the written language and even on some cave drawings. Before that? No one really knows.
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Quoting Hangten:


They probably got them from Grothar in the first place. How old is this guy


I'm not sure myself.
Member Since: July 17, 2009 Posts: 69 Comments: 25442
Quoting pottery:

Well, the Rainy Season starts in June........
The dry season better hurry up!
As you know, our dry is from Jan to May.
This year we had rain right through, so far.

The rains have not been a problem though.
The watermelons are plentiful and huge !

Yeah, the ITCZ will be moving to the north in a month or so and that will increase the rainfall activity in Trinidad. Jamaica's rainy season normally starts some where in mid May and ends around mid to late October...we get most of our rain from Tropical waves, tropical storms and monsoonal systems
Member Since: November 6, 2010 Posts: 11 Comments: 7880
Quoting LargoFl:
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL
351 PM EDT MON MAY 7 2012

FLZ042-043-048-072030-
SUMTER-CITRUS-HERNANDO-
351 PM EDT MON MAY 7 2012

...STRONG THUNDERSTORMS WILL AFFECT CENTRAL SUMTER...NORTHEASTERN
HERNANDO AND SOUTHEASTERN CITRUS COUNTIES...

NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATES STRONG THUNDERSTORMS
LOCATED NEAR FLORAL CITY...OR 7 MILES SOUTHEAST OF INVERNESS...MOVING
EAST AT 5 MPH...WILL AFFECT INVERNESS...INVERNESS AIRPORT...
HEATHERWOOD AND WAHOO...UNTIL 430 PM EDT.

GUSTY WINDS 35 TO 45 MPH WILL BE POSSIBLE. FREQUENT LIGHTNING IS
EXPECTED. TO BE SAFE GO INDOORS IMMEDIATELY. IF CAUGHT
OUTSIDE...FIND A LOW SPOT...AND STAY AWAY FROM TALL OBJECTS. THESE
STORMS MAY PRODUCE PEA SIZE HAIL. TORRENTIAL RAINS WILL REDUCE
VISIBILITY TO NEAR ZERO AND WILL CAUSE PONDING OF WATER ON ROADWAYS.
MOTORISTS SHOULD EXERCISE CAUTION.

&&

LAT...LON 2891 8233 2891 8207 2861 8202 2869 8237
2883 8238
TIME...MOT...LOC 1951Z 260DEG 5KT 2876 8226

$$


Hey, Largo. I hope you got my message. I am sorry you misunderstood my blog the other day. I meant it as a shot to me, not you. Again, I apologize for the misunderstanding.
Member Since: July 17, 2009 Posts: 69 Comments: 25442

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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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