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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Member Since: July 14, 2008 Posts: 2 Comments: 9686
afternoon all checking in on lunch not bad on here today
Member Since: Posts: Comments:
Quoting DavidHOUTX:

It seems as if Texas will be getting some well needed rain
Member Since: November 6, 2010 Posts: 12 Comments: 8486
Quoting NEFL:
Is it necessary to tell us 4 times in the span of 100 comments how much rain you got in one afternoon?
Yeah, that's kinda like someone posting the HPC 5-day precipitation outlook map or the third time in just 12 comments (523, 525, 534)... ;-)
Quoting NEFL:
Heck yesterday i had a 70% chance of rain and got nothing, and that was the forecast for the day of and they couldnt even get it right.
I disagree that "they" got it wrong. Now, had you been given a 100% chance of rain and it failed to materialize, you'd be right. But a 70% chance of rain--or even a 99% chance--doesn't mean that every person in the forecast area will see rain.
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Quoting BahaHurican:
Everything's still very much unofficial, but looks like a "landslide" - as many as 30 seats to the opposition. At one point it was rumoured that the outgoing prime minister had lost his own seat, and his win has actually not as yet been confirmed.

So potentially a BIG change. However, tomorrow will tell the tale.

[BTW, this has nothing to do with whether The Bahamas will successfully challenge JA at next Carifta.... that is an issue that transcends politics.... lol]


Very similar to what happened in Jamaica. The present government, the opposition at the time, won 42 of the 63 seats in parliment
Member Since: November 6, 2010 Posts: 12 Comments: 8486


...."Do you remember, when we met?,...."



Uploaded by: jtrainman — Tuesday May 1, 2012 — Newport News, VA

www.wunderground.com/worldview
Member Since: Posts: Comments:
542. For the love of all that is holy... don't turn this blog into a running joke along the lines of the JFV insanity from a couple years ago.

While there are some things that some bloggers do that irritate me, calling them out and needling them constantly isn't the way to get things done. All it does is make you look like a bully, and get you ignored. If you have a problem with a person, talk to them about it via WUmail.
Member Since: August 3, 2008 Posts: 16 Comments: 5891
536) You didn't even get 2? Well over 6 to your SW. Should dry out enough to let them finish the soybeans with these lower temps and humidity + sunshine over next 4 days though. Not sure about low spot corn replant though - guess that'll depend on how much we get this weekend. Sure like the temps in the long range though, much more seasonable.
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Member Since: August 18, 2011 Posts: 0 Comments: 635
Good morning all
Member Since: November 6, 2010 Posts: 12 Comments: 8486
Quoting LBAR:
Is this something? From the Charleston, SC National Weather Service long-range discussion...

A
LOW PRESSURE SYSTEM WILL MOVE INTO THE EASTERN GULF OF MEXICO ON
MONDAY AND WILL LIKELY AFFECT THE REGION EARLY NEXT WEEK AS IT
APPEARS TO TRANSITION TO A POSITION OFF THE SOUTHEAST COAST WITHIN
AN AREA OF INCREASED BAROCLINICITY.



That's what I was mentioning in an earlier post as a low (non-tropical) is forecast to slide across the Gulf and then across N FL and up the eastern seaboard. Looks as if a very wet pattern will move in again across the SE US late Sunday into Monday.

You can see the track of the is low on the GFS 8 day precip accum.



Member Since: October 26, 2011 Posts: 0 Comments: 2651
.
Member Since: July 14, 2008 Posts: 2 Comments: 9686
540. LBAR
Is this something? From the Charleston, SC National Weather Service long-range discussion...

A
LOW PRESSURE SYSTEM WILL MOVE INTO THE EASTERN GULF OF MEXICO ON
MONDAY AND WILL LIKELY AFFECT THE REGION EARLY NEXT WEEK AS IT
APPEARS TO TRANSITION TO A POSITION OFF THE SOUTHEAST COAST WITHIN
AN AREA OF INCREASED BAROCLINICITY.

Member Since: Posts: Comments:
Quoting MississippiWx:


The guy is enthusiastic about the weather. Give him a break. At least he's not constantly talking about off-topic things such as religion where Admin has to step in and axe it. I just don't see any reason to attack the guy over talking about weather. Sorry if it seems this came out of nowhere. You aren't the first to bash him for it and I finally got annoyed. If you don't like his posts, you can always ignore. Just saying. :-)


I think it's the same person and I agree it's getting old already.
Member Since: October 26, 2011 Posts: 0 Comments: 2651
Quoting jeffs713:

and that is a good thing. :)

Similar to how when it rains, it is wet outside.


When it's wet, it floods
Member Since: July 14, 2008 Posts: 2 Comments: 9686
Quoting RitaEvac:
When it rains it pours


and that is a good thing. :)

Similar to how when it rains, it is wet outside.
Member Since: August 3, 2008 Posts: 16 Comments: 5891

Quoting bohonkweatherman:
I am about 15 miles South of Austin Tx, that radar has looked like that the past 6 hours or so, the rains have not gotten any closer to me, they need it out West more than I do, they are or were still in the Worst Drought you can be in so let it rain there. I actually received .15 overnight giving me a 2 rainfall total of near 1 inch. I have relatives in Austin area that received nearly 4 inches of rain Saturday night which isnt that far from my house so these rains have been slow movers leaving some with alot of rain and others with little.
Yeah, that's' got to be frustrating.  I feel your pain.  The entire central part of our state nearly picked up 2 inches in the last week except for me, our county was about the only one on the map that stayed dry.   That complex to your southwest will be key for you today.  It's going to take a while before it gets into Austin if it does, if it can clear out any where your at, it will be a big bonus to seeing something later.
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Quoting NEFL:


Is it necessary to tell us 4 times in the span of 100 comments how much rain you got in one afternoon? Thats great you got 3.54 inches, but that only included an area of about a football field on the radar. These little popcorn storms arent going to end the drought here in FL Jeff9641.


The guy is enthusiastic about the weather. Give him a break. At least he's not constantly talking about off-topic things such as religion where Admin has to step in and axe it. I just don't see any reason to attack the guy over talking about weather. Sorry if it seems this came out of nowhere. You aren't the first to bash him for it and I finally got annoyed. If you don't like his posts, you can always ignore. Just saying. :-)
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Member Since: Posts: Comments:
Texas Hill Country Weather Update


It's been raining steadily, and gently, in Kerr County (60 mile NW of San Antonio) all morning. Looks like it might continue most of the day. We need to get the aquifers replenished after what the drought did to us last year.

I regret not having weeded the garden or mowed the lawn yesterday before this all began.
Member Since: Posts: Comments:
Quoting PalmBeachWeather:
Hail, Rain, and funnel clouds in St. Lucie, Indian River, and Martin county yesterday afternoon... Nothing here in Palm Beach county Florida
.


There was a funnel in West Boca last evening. I saw it on the news.
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Area forecast discussion
National Weather Service New Orleans la
859 am CDT Tuesday may 8 2012


Sounding discussion...
no problems with the flight this morning. Sounding is relatively
drier than yesterday with p.W. Down to 1.35 inches. Moderately
moist up to 700mb then dry above 700mb conducive for wet
microbursts once a convective process gets underway. North winds
near the surface switches to southerly around 2800ft...essentially
cloud base level...easterly 6800-11kft...then west-northwest aloft. This
wind profile...though non-descript looking at first...is favorable
for downburst as initial convection GOES essentially vertical
before becoming influenced by anvil blow-off towards the southeast
over time this afternoon. Low level north flow will enhance
convergence once lake and sea breezes become established.


Ran chap program for convective integrity using maximum surface based
lift of 344k with a forecast maximum temperature of 89f yields Ricks
index 124...marginally severe with a 95% pop...precipitation
4... 7.85" for temperatures below 74f...probability severe
14%...gust potential 45kt/52 miles per hour...pea hail with a 65
vil...quarter hail at 71 vil...waterspout potential. These values
seem reasonable given the syoptic situation and will be the basis
for any advisory and warning issuances today. 24/rr

Long Term NOLA

Heading into tonight and tomorrow...the chance for more significant thunderstorm activity will go up dramatically...as a strong long wave trough axis and associated cold front move into the region.

A broad area of increased Omega values aloft in
advance of the approaching trough axis should support continued shower activity through the overnight hours. Heading into tomorrow...the surface front will begin to pull through the region. Ample deep layer moisture and noted by precipitable water values of around
1.75 inches and a continued unstable airmass along with weak shear values will allow for deep and slow moving convective cells to impact the region.

The biggest threat from any thunderstorm activity on Wednesday will be the potential for some locally heavy
rainfall which could lead to flooding issues. The cold front and associated heavy rain threat will finally begin to pull to the east by late Wednesday night.


A much drier airmass will quickly advect in behind the passing front and upper level trough axis for Thursday and Thursday night.

Some weak cold air advection will also take hold...allowing temperatures to fall back to more normal readings for this time of
year on Thursday.
Member Since: Posts: Comments:
Quoting MississippiWx:


Yeah, Texas! Bring on the rain. We love El Nino, except for the whole reduction of tropical activity thing.


Yeah I know it's great I picked up 3.54" yesterday here north of Orlando and storm clouds are starting to build again. Our only dry days over the next 14 are only Friday & Saturday as the TX system moves into FL Sunday afternoon thru next week so those 3" to 5" should expand further east as the system gets into HPC's 5 day timeframe.

Member Since: October 26, 2011 Posts: 0 Comments: 2651
When it rains it pours

Member Since: July 14, 2008 Posts: 2 Comments: 9686
Quoting DavidHOUTX:


Yeah, Texas! Bring on the rain. We love El Nino, except for the whole reduction of tropical activity thing.
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Imma go for sunshine in louisiana
Member Since: June 17, 2011 Posts: 11 Comments: 6539
Member Since: August 18, 2011 Posts: 0 Comments: 635
Quoting jeffs713:
northern section is fading (Austin/Waco area), but the southern group is actually intensifying.


I agree
Member Since: June 17, 2011 Posts: 11 Comments: 6539
Intel reports of Thursday night and Friday afternoon is the BIG event. Prodigious rainfall maker with very heavy rainfall coming for parts of TX. Red flags are up

Member Since: July 14, 2008 Posts: 2 Comments: 9686
Quoting RitaEvac:


If we can keep it clear till 1-2PM, watch out, that line getting ready to be south of San Antonio is gonna explode and plow all the way to the coast


Don't know if it'll make it this far over. But clear skies we got. :)

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Quoting 1900hurricane:
Clear skies should be a big aid to atmospheric instability.



If we can keep it clear till 1-2PM, watch out, that line getting ready to be south of San Antonio is gonna explode and plow all the way to the coast
Member Since: July 14, 2008 Posts: 2 Comments: 9686
Clear skies should be a big aid to atmospheric instability.

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Quoting weatherh98:



Falling apart

The northern area is weakening probably due to a lack of instability, but I imagine that will change by later this afternoon.

Member Since: Posts: Comments:
Quoting jeffs713:
northern section is fading (Austin/Waco area), but the southern group is actually intensifying.


Check post 510
Member Since: July 14, 2008 Posts: 2 Comments: 9686
Quoting weatherh98:



Falling apart
northern section is fading (Austin/Waco area), but the southern group is actually intensifying.
Member Since: August 3, 2008 Posts: 16 Comments: 5891
Quoting ILwthrfan:

Are you well south of San Antonio?  Looks as if this is building south and eastward.  


I am about 15 miles South of Austin Tx, that radar has looked like that the past 6 hours or so, the rains have not gotten any closer to me, they need it out West more than I do, they are or were still in the Worst Drought you can be in so let it rain there. I actually received .15 overnight giving me a 2 rainfall total of near 1 inch. I have relatives in Austin area that received nearly 4 inches of rain Saturday night which isnt that far from my house so these rains have been slow movers leaving some with alot of rain and others with little.
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Quoting 1900hurricane:
Pretty active out there at the moment.




Falling apart
Member Since: June 17, 2011 Posts: 11 Comments: 6539
Maurice Sendak, the author of Where the Wild Things Are, has died.
Member Since: Posts: Comments:
Hail, Rain, and funnel clouds in St. Lucie, Indian River, and Martin county yesterday afternoon... Nothing here in Palm Beach county Florida
.
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Pretty active out there at the moment.

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I was one of the few areas in all of SE TX yesterday that received 1.70" of rain from the sea breeze.
Member Since: July 14, 2008 Posts: 2 Comments: 9686
Quoting DavidHOUTX:


Hopefully that holds itself together to make it into SE Texas. I am thinking it will!


Thinking a Meso will push past San Antonio, and drive a line of storms eastward towards the coast later today/evening. Skies are sunny here in SE TX, atmosphere will be destabilizing and heating of day, and gulf inflow will fuel this system as it moves eastbound. Expect a gigantic line of storms on radar late today.
Member Since: July 14, 2008 Posts: 2 Comments: 9686

Quoting bohonkweatherman:
I am in South Central Texas so far last 2 days a trace but it isnt 95 with heat index off the charts like yesterday.
Are you well south of San Antonio?  Looks as if this is building south and eastward.  


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Quoting RitaEvac:


He's in Buda, just south of Austin
That area seems to have some sort of anti-rain force field thing going on. They've missed the last two rounds. Hopefully that changes today.
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Quoting RitaEvac:


Buckle up, rains are coming for ya


Hopefully that holds itself together to make it into SE Texas. I am thinking it will!
Member Since: August 18, 2011 Posts: 0 Comments: 635
Cape Coral is still dry as a bone and rainless as an interior room. Our City Council yesterday passed a stepped process for increasing water restrictions due to current drought. I saw gorgeous thunderstorms far off to our east yesterday evening, but the sea breeze to date has simply robbed us of what little rain has blessed Florida these last couple weeks.
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Member Since: July 14, 2008 Posts: 2 Comments: 9686
Quoting ScottLincoln:


My initial thought is to question this; what about other portions of the country with a higher density of cows... why is there not smog there? The midwest may not see inversions and light surface winds as often as places like the LA basin where this is more common due to topography, but it does happen. Typically during said "stagnate weather," the pollution tends to be ozone related.
I lived in LA for a number of years. Yes, there are a lot of cows--but the freeways and surface streets are packed with cars and trucks and buses 24 hours a day, every single one of them belching visible clouds of soot and/or invisible clouds of other things. Empirical evidence is empirical evidence--but I imagine further study may just show that recent bit of research to be off a bit. ;-)
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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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