Dr. Jeff Masters' WunderBlog |
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| Posted by: Dr. Jeff Masters, 3:26 PM GMT on November 11, 2011 | +21 |
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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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are you ignoring Sean now...
:P
Thanks for the update Doc! been enthralled by that wave vid past couple days myself!!
"The Tipton tornado is the first November EF-4 tornado in Oklahoma's history, and one of only twenty EF-4 or stronger tornadoes observed in the U.S. since 1950, according to the Tornado History Project. There have been twelve December EF-4 tornadoes and two December EF-5 tornadoes observed in the U.S. since 1950. The confirmed tornado count for 2011 is 1543"
Why is it when meteorologist of a flood, they use terms such as "this is a 100 year flood" for example, but in terms of this tornado, the term history is used when accurate records barely even go back to the 1950s?
Thanks to all the veterans for your sacrifice for us.
To all our veterans, I thank you.
Sean looks dead.
Congratulations to Garret McNamara! That had to be one heck of a ride! .. I now await such a wave to show itself at Galveston, Texas! ... How long do you think I will need to wait? Do I have time to get a new board? I sold my last one in 1970. :(
Have a great weekend all and thank you, Dr. Masters, once again.
...............
PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
400 PM CST THU NOV 10 2011
...TIPTON TORNADO RATING UPGRADED TO EF4...
BASED ON ANALYSIS OF DATA COLLECTED DURING A GROUND DAMAGE SURVEY...
THE RATING FOR THE NOVEMBER 7TH TIPTON TORNADO HAS BEEN UPGRADED TO
EF4 ON THE ENHANCED FUJITA SCALE. THE RATING IS BASED PRIMARILY ON
DAMAGE OBSERVED AT THE OSU AGRONOMY RESEARCH STATION ON HIGHWAY 5.
THIS IS THE FIRST NOVEMBER EF4 TORNADO IN OKLAHOMA SINCE RECORDS
BEGAN IN 1950.
ESTIMATED WIND SPEEDS IN AN EF4 TORNADO RANGE FROM 166 TO 200 MPH.
$$
SMITH
Seriously quiet day in here...
On a more pleasant note, my daughter, who is a Labor and Delivery Nurse at Lower Keys Hospital was awarded Nurse of the Year by the South Florida March of Dimes. I am so proud of her. And she is going to make me a Grandma in April.
Just had to share with everyone even though it is very quiet in here.
...SEAN BEGINNING TO LOSE TROPICAL CHARACTERISTICS NORTHEAST OF BERMUDA...
2:00 PM AST Fri Nov 11
Location: 34.8°N 62.5°W
Max sustained: 50 mph
Moving: NE at 25 mph
Min pressure: 991 mb
Almost.
We'll still see Tammy and Vince though, me thinks.
Also, while the wave is currently claimed as being "90ft tall and the tallest wave ever surfed" I'm quite positive it is still an unofficial claim. Ken Bradshaw surfed a wave at Outer Log Cabins, Hawaii that was also claimed to be 85ft in 1998 which should be the largest wave ever surfed, but the record books officially recognize Mike Parson's 77ft wave at Cortez Bank (100 miles off the coast of San Diego, California) since it had been entered in the Billabong XXL wave contest and been "officially" measured. I believe this 90ft wave will also be entered in the contest, so hopefully we can get an "official" measurement on it, but as of right now 90ft just seems to be a claim being thrown out there.
Forecast Today: 60% chance of rain for this part of PR...
This season doesn't deserve to potentially beat last year. We've only had six hurricanes.
Number of storms is number of storms, the low number of hurricanes doesn't make this season any less notable.
Not caused by a storm but eh:
Link
And BTW google is your friend :)
that 90foot wave can overe turn ships if one haveing too be in the way of it
Meh.
The tallest wave by a storm was 112 feet as recorded by the USS Ramapo in 1933 in a typhoon near the Philippines. Hurricane Ivan was also recorded to have waves as high as 90ft, and possibly even waves as high as 130ft but the instruments scientists were using had failed (Link). There have also been claims of 100ft waves at Mavericks, a surf spot in California.
Anyway, keep in mind these are recorded and observed waves. There have probably been many larger waves and we just haven't been around to measure them. The largest waves (produced by storms) most likely occur in the most powerful tropical cyclones (cat 4/5) with long tracks. Reason for that is because wave size is determined by wind speed, wind duration, and wind fetch (size of area wind is blowing over). Extratropically, I'd expect the Southern Ocean to produce the largest waves as it has the strongest pressure gradients and largest expanses of open ocean when compared to the North Pacific and North Atlantic Oceans.
We'll never know, but I'm sure some storms have produced waves that are just... unfathomable (heh, heh)
Ivan though recorded a wave somewhere between 90 and 130ft high.
And while two storms is possible, I don't know if we'll see it. In fact, I don't think so. Be good to have this season in the book and out the way.
Igor produced a 83.6-foot wave off the coast of Newfoundland, as well as an unconfirmed 92 foot wave. Definitely not the highest wave, though.
If you had 18 storms that were all cat 5s it would absolutely be more notable than a season with 18 storms that all failed to achieve hurricane status.
..Now that's an extreme example, but it proves a point. Why do you think they came up with things like ACE, PDI, or HDP? They all were intended to provide other ways of measuring tropical activity without looking at just tropical storm numbers or hurricane counts.
I wouldn't say it doesn't deserve to beat 2010, but I would say that if 2011 passed 2010 in terms of total number of storms, 2010 should still be recognized as the more active season.
I haven't checked but I am sure 2010 beats this year decisively from an ACE standpoint.
I say we're going to have Tammy and Vince before the season ends.
Got one to throw in: If there's any season that you could go back in time to study - from a meteorological point of view - which would it be?
Yeah, it does. 165 to 119.
I thought it was something like that. Maybe a tropical storm or two will form in November/December but even if they do they will probably add just a few points to ACE.
1960, for one reason and one reason only - Ethel.
Highest winds (1-minute sustained): 160 mph (260 km/h)
Lowest pressure: 972 mbar (hPa; 28.7 inHg)
I was around to hear about what was going on, but I knew nothing about weather or hurricanes. It would have been cool to observe these storms from a meterological perspective. Of course, that doesn't mean I would ever wish for people to have to relive all the death and destruction that accompanied these storms.
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