No new tornado deaths yesterday; Super Typhoon Songda hits Category 5

By: Dr. Jeff Masters , 26. toukokuuta 2011 klo 15:04 (GMT)

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The tornado onslaught of 2011 continued over the Midwest yesterday, as dozens of tornadoes touched down, primarily in Missouri, Illinois, Indiana, and Arkansas. NOAA's Storm Prediction Center logged 81 preliminary reports of tornadoes in eleven states. Even California got into the action, with a tornado near Chico causing minor damage. Mercifully, no deaths were reported from yesterday's tornadoes. Too many thunderstorms formed too close to each other to allow strong or violent tornadoes to grow, as the many thunderstorms interfered with each others' organization. The preliminary tornado count for the 5-day outbreak that began Saturday is 243. Preliminary tornado reports are an overestimate, since some storms get counted multiple times. These over-counts were 35% - 40% in the case of the April 14 - 16 tornado outbreak and April 25 - 28 Super outbreak, so we can expect that the May 21 - 25, 2011 outbreak will end up with close to 150 tornadoes. This would rank as the third largest tornado outbreak in history, giving 2011 the three largest tornado outbreaks of all-time. Prior to 2011, NOAA rated the April 3 - 4, 1974 Super Outbreak as the largest tornado outbreak of all-time, with 148 tornadoes. According to a list of tornado outbreaks maintained by Wikipedia, only two other tornado outbreaks have had as many as 150 twisters prior to 2011--the May 2004 outbreak (385), and the May 2003 outbreak (401). However, these outbreaks occurred over an eight-day and eleven-day period, respectively, and were not due to a single storm system.


Figure 1. Satellite image taken at 23:32 UTC (7:32pm EDT) May 25, 2011, showing a line of tornadic thunderstorms over the Midwest. Image credit: NASA/GSFC.


Figure 2. Tornado near Fariview, Oklahoma, on May 24, 2011. Image credit: Mike Theiss, www.ExtremeNature.com.


Video 1. "We are in the tornado!" is all this poor guy caught in a car during a tornado can say, while buildings fly apart around him. He is very lucky to have survived. Video shot in Navarro County, Texas on May 24, 2011.

The death toll from Tuesday's tornadoes over Oklahoma, Arkansas, and Kansas is now 16, which would bring the death toll from this year's tornadoes to 506, according to yesterday's NOAA tornado statistic update. This makes 2011 the deadliest year for tornadoes in the U.S. since 1953, when 519 people died. That year, three heavily populated cities received direct hits by violent tornadoes. Waco, Texas (114 killed), Flint, Michigan (115 killed), and Worcester, Massachusetts (90 killed) all were hit by violent F-4 or F-5 tornadoes. A similar bad tornado year occurred in 1936, when violent tornadoes hit Tupelo Mississippi (216 killed), and Gainesville, Georgia (203 killed.)

Only a "Slight Risk" day for severe weather today
The Storm Prediction Center has placed portions of twenty states, from Alabama to Vermont, in their "Slight Risk" region for severe weather potential. The slow-moving low pressure system responsible for all the tornado activity this week is weakening, and the primary severe weather threat today is from large hail and damaging straight-line thunderstorm winds. However, there are still likely to be tornadoes today, and I expect we'll see a dozen or so twisters touch down from some of the stronger thunderstorms that develop.


Figure 3. Severe weather threat for Wednesday, May 25, 2011.

Links
Here is an interactive hi-res satellite image showing Joplin before and after the tornado. Some non-interactive images are here.

The New York Times has an interactive tornado fatality map showing how this year's killer tornadoes have mostly clustered over the Southeast U.S., with the glaring exception of the Joplin, Missouri tornado.

NOAA's Visualization Laboratory has an impressive animation of the satellite imagery during the month of April, showing the locations of all the tornadoes as they happened.


Figure 4. Satellite image of Super Typhoon Songda.

Super Typhoon Songda the first Category 5 tropical cyclone of 2011
The first typhoon of 2011 is also the globe's first Category 5 tropical cyclone of the year. Super Typhoon Songda intensified dramatically over the past 24 hours in an environment of light wind shear and warm sea surface temperatures of 30°C, to reach Category 5 status with top sustained winds of 160 mph. Tropical Cyclone Yasi, which devastated Queensland, Australia in early February, was the globe's previous strongest tropical cyclone of 2011, with 155 mph winds.

Fortunately, Songda is expected to miss making a direct hit on the Philippines, though evacuations have been ordered in low-lying areas. Satellite-estimated rainfall for the coming 24-hour period is predicted to be less than 4 inches along the northeast coast of the Philippines' Luzon Island, which should not cause major flooding problems. Songda is expected to turn northwards and threaten the island of Okinawa on Saturday. Sea surface temperatures decline rapidly north of the Philippines, and Songda is expected to weaken significantly before reaching Okinawa, where sea surface temperatures are approximately 26°C. Wind shear will also increase to high levels by Saturday, and Songda should be at most a Category 2 typhoon by the time it reaches Okinawa.

Jeff Masters

Tornado! (CalicoBass)
Tornado Warning for us. It went just past us, was beautiful to watch.
Tornado!
Large Hail! (aderocher78)
First round of large hail.
Large Hail!
Possible Tornado (Griff3488)
I was west bound I 74 when I drove into this storm. They said On the radio it was a tornado on the ground.
Possible Tornado
Joplin 5/22/11 EF5 aftermath (N0RCO)
I went to joplin to look at the destruction this EF5 tornado did. Absolutely devastating in my opinion!
Joplin 5/22/11 EF5 aftermath
Lightning Strike (weatherfanatic2010)
I caught this totally by accident. I was trying to take a picture of the cloud formation and this flashed right as I took the picture. Unbelievable luck!!
Lightning Strike
Mammatus over Indy (jay1hawker)
View of sky before storm, May 25, 2011 Indianapolis
Mammatus over Indy

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649. 1992Andrew
1. kesäkuuta 2011 klo 11:40 (GMT)
Good morning ya'll. Caribbean is smothered with moisture. Looks plain nasty.
Member Since: 20.07.2010 Posts: 0 Comments: 205
648. hurricanejunky
27. toukokuuta 2011 klo 18:08 (GMT)
Seabreeze boundary storms firing up along US41 in Fort Myers/North Fort Myers and moving east. Nice thunderboomers and good soaking rains! Woohoo!!

In other weather news,
The Heat wins! The Heat wins!!
Member Since: 28.08.2006 Posts: 6 Comments: 2895
647. hydrus
27. toukokuuta 2011 klo 16:46 (GMT)
Quoting EYEStoSEA:


Wait a minute,now.....JUMPING spiders ???? Lordy, Lordy.....yikes , just couldn't handle that...noooo
Yes. They do actually jump, but they do not have much of a bite. I have been bitten many times by different spiders surveying down in the everglades.
Member Since: 27.09.2007 Posts: 1 Comments: 19521
646. sunlinepr
27. toukokuuta 2011 klo 16:45 (GMT)
Member Since: 2.08.2010 Posts: 21 Comments: 9648
645. IKE
27. toukokuuta 2011 klo 16:34 (GMT)
NEW BLOG!
Member Since: 9.06.2005 Posts: 23 Comments: 37858
644. KEEPEROFTHEGATE (Mod)
27. toukokuuta 2011 klo 16:32 (GMT)
Quoting TexasGulf:
Only 5 more days till start of the 2011 Atlantic Hurricane Season.

There is still an opportunity for the Fed Gov't to reconsider and give a retiring space shuttle to Houston's Johnson Space Center before hurricane season. Otherwise, we're not responsible for bad Karma causing a chaotic & destructive season this year.
if there is a chaotic and destructive season that iam afraid will have nothing to do with it be careful you don't want a cat 5 barreling down on ya crossing the gulf what you sent out may come back to haunt you
Member Since: 15.07.2006 Posts: 163 Comments: 52257
643. MiamiHurricanes09
27. toukokuuta 2011 klo 16:31 (GMT)
Quoting TropicalAnalystwx13:


You can see a piece of a trough off the west coast of FL that will be ventilating the Caribbean and lowering Wind Shear, helping whatever may form and develop.
At 144 hours the upper low is located right over the center of the Gulf of Mexico advecting towards the west.

Member Since: 2.09.2009 Posts: 130 Comments: 21032
642. TropicalAnalystwx13
27. toukokuuta 2011 klo 16:26 (GMT)
Quoting MiamiHurricanes09:
Yup, upper-level winds racing towards the northeast courtesy of the subtropical jet are going to shear off the convection off the circulation.



You can see a piece of a trough off the west coast of FL that will be ventilating the Caribbean and lowering Wind Shear, helping whatever may form and develop.
Member Since: 6.07.2010 Posts: 108 Comments: 30251
641. MiamiHurricanes09
27. toukokuuta 2011 klo 16:23 (GMT)
Quoting TropicalAnalystwx13:
GFS shows what Levi talked about in his blog entry...Where most convection would be to the E and NE of the circulation.
Yup, upper-level winds racing towards the northeast courtesy of the subtropical jet are going to shear off the convection off the circulation.

Member Since: 2.09.2009 Posts: 130 Comments: 21032
640. IKE
27. toukokuuta 2011 klo 16:23 (GMT)
Hour 126...


Member Since: 9.06.2005 Posts: 23 Comments: 37858
639. Patrap
27. toukokuuta 2011 klo 16:22 (GMT)

Stearly Heights, Okinawa, OKINAWA (PWS) wu-page
Member Since: 3.07.2005 Posts: 414 Comments: 125572
638. AtHomeInTX
27. toukokuuta 2011 klo 16:21 (GMT)
Quoting Hurrykane:


Hi!


Hi Hurrykane. :)
Member Since: 24.08.2010 Posts: 0 Comments: 459
637. TexasGulf
27. toukokuuta 2011 klo 16:21 (GMT)
Only 5 more days till start of the 2011 Atlantic Hurricane Season.

There is still an opportunity for the Fed Gov't to reconsider and give a retiring space shuttle to Houston's Johnson Space Center before hurricane season. Otherwise, we're not responsible for bad Karma causing a chaotic & destructive season this year.
Member Since: 28.04.2008 Posts: 0 Comments: 354
636. TropicalAnalystwx13
27. toukokuuta 2011 klo 16:21 (GMT)
GFS shows what Levi talked about in his blog entry...Where most convection would be to the E and NE of the circulation.
Member Since: 6.07.2010 Posts: 108 Comments: 30251
635. Patrap
27. toukokuuta 2011 klo 16:21 (GMT)
Typhoon Songda



Member Since: 3.07.2005 Posts: 414 Comments: 125572
634. MiamiHurricanes09
27. toukokuuta 2011 klo 16:19 (GMT)
On the 12z GFS at 108 hours a broad area of low pressure develops in the southwestern Caribbean with convection sheared off to the northeast. The development of this system keeps moving along the 'timeline'.

Member Since: 2.09.2009 Posts: 130 Comments: 21032
632. srada
27. toukokuuta 2011 klo 16:16 (GMT)
Today's map may need to be updated..Florence, SC is already having some severe thunderstorms..

Member Since: 17.08.2006 Posts: 1 Comments: 772
631. kmanislander
27. toukokuuta 2011 klo 16:16 (GMT)
Quoting HouGalv08:
Probably just above stall speed if the flaps and slat would have been out, pointed into the prevailing wind, but not flyable if flaps and slats retracted. Confirms even further that the aircraft was in a high nose-up attitude when it hit the water.


Agreed. If the aircraft was in a "clean" configuration
definitely not flyable at that speed. With all they had going on in the cockpit including the stall warning horn the loss of speed sensor information would probably have stymied even the computer's attempts to deal with the emergency.
Member Since: 19.08.2006 Posts: 0 Comments: 15671
630. KEEPEROFTHEGATE (Mod)
27. toukokuuta 2011 klo 16:14 (GMT)
XX/XX/XX

Member Since: 15.07.2006 Posts: 163 Comments: 52257
629. KEEPEROFTHEGATE (Mod)
27. toukokuuta 2011 klo 16:14 (GMT)
Model, Area : GFS, Tropical Atlantic, 1.0 deg WARFIGHTER

Member Since: 15.07.2006 Posts: 163 Comments: 52257
628. IKE
27. toukokuuta 2011 klo 16:12 (GMT)
90 hour 12Z GFS...


Member Since: 9.06.2005 Posts: 23 Comments: 37858
627. TropicalAnalystwx13
27. toukokuuta 2011 klo 16:10 (GMT)
Quoting washingtonian115:
That monster came dangerously close to land.Hopefully it'll start to rapidly weaken sooner...


That's the forecast:

Member Since: 6.07.2010 Posts: 108 Comments: 30251
626. HouGalv08
27. toukokuuta 2011 klo 16:09 (GMT)
Quoting kmanislander:


Hi Pottery,

I saw your question earlier about speed of descent. I just read a UK report that states the aircraft hit the water at 180 feet per second. That converts to approximately 122 MPH.
Probably just above stall speed if the flaps and slat would have been out, pointed into the prevailing wind, but not flyable if flaps and slats retracted. Confirms even further that the aircraft was in a high nose-up attitude when it hit the water.
Member Since: 21.07.2008 Posts: 0 Comments: 348
625. washingtonian115
27. toukokuuta 2011 klo 16:08 (GMT)
Quoting sunlinepr:
Seems like Songda is going to whip the waters of Fukushima...


That monster came dangerously close to land.Hopefully it'll start to rapidly weaken sooner...
Member Since: 14.08.2010 Posts: 10 Comments: 15707
624. bluheelrtx
27. toukokuuta 2011 klo 16:05 (GMT)
Quoting NCHurricane2009:


Gotta check those weather conditions before taking off, aye?

Absolutely. Skydivers are a lot like VFR aircraft - and the parachutes are like gliders with really lousy glide ratios, so ground conditions are just as important as altitude.


There is also nothing quite like free falling through an inversion layer. :-)

Quoting jeffs713:
My wife and I would LOVE to go skydiving - its just so painfully expensive, and we also have the travel bug.. so our money is spent traveling, rather than skydiving.

It's not as expensive after you train and purchase gear, but it's funny you should say that. I have recently shifted most of my skydiving time to riding motorcycles with my fiancé.
Member Since: 8.11.2006 Posts: 5 Comments: 222
623. BenInHouTX
27. toukokuuta 2011 klo 16:03 (GMT)
Someone posted a link for the Jim Lushine theory (dry month of May in Florida leads to doubling of probability of hurricane strike in Florida) the other day. The article was from 1993.

Does anyone know how well the theory has held up since 1993?

And is there any similar theory relating to Texas?

Thanks
Member Since: 13.09.2008 Posts: 0 Comments: 3
622. washingtonian115
27. toukokuuta 2011 klo 16:01 (GMT)
The models still agree on something forming right into next week.We'll see what happens in future.....
Member Since: 14.08.2010 Posts: 10 Comments: 15707
621. kmanislander
27. toukokuuta 2011 klo 16:01 (GMT)
Quoting pottery:

Yes I noticed that in the published report.
The aircraft was in 16 degree climb and more climb seems to have been applied.
They were concerned with the 'stall' signal to the point where they were not looking at the altitude going up fast? And INCREASED the climb rate at one point...
Really strange responses.
Bad stuff, anyway.


Hi Pottery,

I saw your question earlier about speed of descent. I just read a UK report that states the aircraft hit the water at 180 feet per second. That converts to approximately 122 MPH.
Member Since: 19.08.2006 Posts: 0 Comments: 15671
620. sunlinepr
27. toukokuuta 2011 klo 15:51 (GMT)
Seems like Songda is going to whip the waters of Fukushima...


Member Since: 2.08.2010 Posts: 21 Comments: 9648
619. AtHomeInTX
27. toukokuuta 2011 klo 15:50 (GMT)
And thanks To Levi's blog I understand about the low the ECMWF's been tracking across the gulf. They did have it closer to the surface a couple a runs. And other than the agreement on the Caribbean low they show another low on the 850 tracking east to west for a brief time in the gulf. Hopefully this won't be another season of one after another. My first season to track on here was 2008 starting after the E name. That was a busy one too.





Be interesting to see if anything becomes of this.
Member Since: 24.08.2010 Posts: 0 Comments: 459
618. IKE
27. toukokuuta 2011 klo 15:45 (GMT)
GFS spitting out some rain this afternoon here....


Member Since: 9.06.2005 Posts: 23 Comments: 37858
617. jeffs713
27. toukokuuta 2011 klo 15:39 (GMT)
Quoting bluheelrtx:


Skydiving is what got me obsessed with weather. I got addicted to Wunderground shortly after making my first jump, almost 14 years ago.
My wife and I would LOVE to go skydiving - its just so painfully expensive, and we also have the travel bug.. so our money is spent traveling, rather than skydiving. That said, I've been told that skydiving is very similar to getting a tattoo, in that once you do it, you're addicted.
Member Since: 3.08.2008 Posts: 16 Comments: 5792
616. AtHomeInTX
27. toukokuuta 2011 klo 15:37 (GMT)
Quoting Waltanater:
Still can;t figure out what kind of macabre joke it is to replace Rita with "Rina". It just looks like a combination of Katrina and Rita.

ROFL!! probably some idiot!


THANK YOU!!! That's what I've been saying since I saw that list. Lol.
Member Since: 24.08.2010 Posts: 0 Comments: 459
615. HouGalv08
27. toukokuuta 2011 klo 15:34 (GMT)
Seems like it's time to stop "nation building" in other parts of the world that are thousands of miles away from home, and where the efforts are not appreciated very much, if at all, and help put Joplin and Tuscaloosa back togeather. To quote a member on the board--"just sayin"
Member Since: 21.07.2008 Posts: 0 Comments: 348
614. IKE
27. toukokuuta 2011 klo 15:26 (GMT)
156 missing in Joplin.

132 dead.

from CNN.

................................................. ..................

12Z GFS is running... http://www.nco.ncep.noaa.gov/pmb/nwprod/analysis/c arib/gfs/12/model_s.shtml
Member Since: 9.06.2005 Posts: 23 Comments: 37858
613. Some1Has2BtheRookie
27. toukokuuta 2011 klo 15:15 (GMT)
Quoting Grothar:


Sorry, hydrus. Things got a little hectic there for a bit. I was incommunicado, but the worst part, I wasn't allowed to contact any body.



The Mrs. sent you to your room again? See what happens when you lose HER car keys!
Member Since: 24.08.2010 Posts: 0 Comments: 4728
612. Neapolitan
27. toukokuuta 2011 klo 15:15 (GMT)
The death toll in Joplin has risen to 132.
Member Since: 8.11.2009 Posts: 4 Comments: 13268
611. pottery
27. toukokuuta 2011 klo 15:13 (GMT)
Quoting HouGalv08:
I know it's preliminary information, but the F.D.R actually confirmed a descent rate of appx 10,100 ft/min, so 3.5 minutes from an altitude of 38,000 to ocean surface is about right. What really puzzels me is that at 10,000 ft (correlated with audio from the cockpit voice recorder) is that the pilots actually pulled the control sticks "AFT" (noted by the F.D.R), making the flight condition worse. Thats a BASIC "stick and rudder" mistake to make when in a stalled condition. You push that control stick FORWARD for all it's worth to help get out of the stall. My flight instructor taught me that in my first hour of flight training, and drilled it into my head and responses. I can only figure that with all what was going on in the cockpit, major disorientatioin took over and confused an already paniced and confused flight crew.

Yes I noticed that in the published report.
The aircraft was in 16 degree climb and more climb seems to have been applied.
They were concerned with the 'stall' signal to the point where they were not looking at the altitude going up fast? And INCREASED the climb rate at one point...
Really strange responses.
Bad stuff, anyway.
Member Since: 24.10.2005 Posts: 0 Comments: 23080
610. NCHurricane2009
27. toukokuuta 2011 klo 15:10 (GMT)
Quoting Jax82:
Looks like its going to be a rainy day for the Florida Peninsula. As for skydiving, i've been twice. You cant replace the feeling you get when your feet are dangling out the side of a small propeller plane and there is nothing between you and the ground except 13,000 feet of air! The air is much cooler at the top and it warms as your fall, thankfully my parachute opened both times :)


Whoa, just got dizzy reading that. Can't imagine I'll ever get the guts to do THAT....LOL
Member Since: 15.09.2009 Posts: 391 Comments: 3519
609. NCHurricane2009
27. toukokuuta 2011 klo 15:09 (GMT)
Quoting bluheelrtx:


Skydiving is what got me obsessed with weather. I got addicted to Wunderground shortly after making my first jump, almost 14 years ago.


Gotta check those weather conditions before taking off, aye?

One of my friends took me to fly in a Cesna Skyhawk plane; smallest plane I ever rode in (but something you can't jump out of). Spent some time checking all those weather conditions and doing preflight checklist. He and I can only appreciate the importance of meteorology, my other friends think its useless, LOL.
Member Since: 15.09.2009 Posts: 391 Comments: 3519
608. HouGalv08
27. toukokuuta 2011 klo 15:06 (GMT)
Quoting pottery:

OK thanks for that.
Appreciated.
See post 600 from Pottery---Ref. AirFrance flight 447---I know it's preliminary information, but the F.D.R actually confirmed a descent rate of appx 10,100 ft/min, so 3.5 minutes from an altitude of 38,000 to ocean surface is about right. What really puzzels me is that at 10,000 ft (correlated with audio from the cockpit voice recorder) is that the pilots actually pulled the control sticks "AFT" (noted by the F.D.R), making the flight condition worse. Thats a BASIC "stick and rudder" mistake to make when in a stalled condition. You push that control stick FORWARD for all it's worth to help get out of the stall. My flight instructor taught me that in my first hour of flight training, and drilled it into my head and responses. I can only figure that with all what was going on in the cockpit, major disorientatioin took over and confused an already panicked and confused flight crew.
Member Since: 21.07.2008 Posts: 0 Comments: 348
606. Jax82
27. toukokuuta 2011 klo 15:05 (GMT)
Looks like its going to be a rainy day for the Florida Peninsula. As for skydiving, i've been twice. You cant replace the feeling you get when your feet are dangling out the side of a small propeller plane and there is nothing between you and the ground except 13,000 feet of air! The air is much cooler at the top and it warms as your fall, thankfully my parachute opened both times :)
Member Since: 2.09.2008 Posts: 1 Comments: 1261
605. bluheelrtx
27. toukokuuta 2011 klo 15:05 (GMT)
Quoting jeffs713:

127 is the average terminal velocity, assuming an average height/weight/body type, in a prone position (face down, arms and legs slightly spread). Of course, if you spread your arms wide and have extra fabric to create "webbing", you will slow down. By the same token, if you pull your arms and legs in, and orient yourself head-first, you will speed up.


Skydiving is what got me obsessed with weather. I got addicted to Wunderground shortly after making my first jump, almost 14 years ago.
Member Since: 8.11.2006 Posts: 5 Comments: 222
604. NCHurricane2009
27. toukokuuta 2011 klo 15:03 (GMT)
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE RALEIGH NC
500 AM EDT FRI MAY 27 2011

SCATTERED TO NUMEROUS SHOWERS AND THUNDERSTORMS...WITH THE HIGHEST COVERAGE
OVER THE NC PIEDMONT AND SANDHILLS...WILL DEVELOP AND MOVE NORTHEAST
ACROSS CENTRAL NC TODAY. SOME STORMS WILL BECOME STRONG TO SEVERE...
PARTICULARLY IN THE VICINITY OF US HIGHWAY ONE...WHERE WIND GUSTS
IN EXCESS OF 50 MPH...HAIL UP THE SIZE OF QUARTERS...AND HEAVY
DOWNPOURS WITH LOCALIZED FLOODING WILL BE MOST PROBABLE.

Looks like its my turn today with the severe weather mambo-jambo....
Member Since: 15.09.2009 Posts: 391 Comments: 3519
603. TropicalAnalystwx13
27. toukokuuta 2011 klo 14:56 (GMT)
When we are watching for development 5-7 days from now, if something does develop in the SW Caribbean, it'll have TCHP to go off of.

Member Since: 6.07.2010 Posts: 108 Comments: 30251
602. jeffs713
27. toukokuuta 2011 klo 14:55 (GMT)
Quoting bluheelrtx:


Depending on height, weight, body type, body position, and experience level . . . sure.

127 is the average terminal velocity, assuming an average height/weight/body type, in a prone position (face down, arms and legs slightly spread). Of course, if you spread your arms wide and have extra fabric to create "webbing", you will slow down. By the same token, if you pull your arms and legs in, and orient yourself head-first, you will speed up.
Member Since: 3.08.2008 Posts: 16 Comments: 5792
601. NCHurricane2009
27. toukokuuta 2011 klo 14:53 (GMT)
Oh yeah...

Stan 2005 was retired due to major flooding in SE Mexico. Replaced with Sean for this year. Stan was the weakest of the storms that got retired in 2005, Stan peaked at cat. 1. Sort of like how Allison was "just" a tropical storm, but got retired because of its big rains.
Member Since: 15.09.2009 Posts: 391 Comments: 3519
600. pottery
27. toukokuuta 2011 klo 14:47 (GMT)
Quoting bluheelrtx:


My math skills are passable, but my firsthand experience with freefall is rather extensive. A flat falling skydiver (face to earth) falls at an average of about 120mph. It takes approximately 60 seconds to fall 10,000 feet, normally, so those numbers don't seem unreasonable for an aircraft descending in a flat, nose-up attitude.

FYI, a skydiver in a vertical position can exceed 200mph.

OK thanks for that.
Appreciated.
Member Since: 24.10.2005 Posts: 0 Comments: 23080
599. seflagamma
27. toukokuuta 2011 klo 14:46 (GMT)
#597 I know that's how they do it; I just think they do not use "common sense or real life reasoning" in their methods...
but I tend to be more of a "practical" person...

thanks.


Levi, great update today. Thanks.

Member Since: 29.08.2005 Posts: 294 Comments: 40839

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About JeffMasters

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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