The map below shows ‘Tornado Tracks Streak Across Oklahoma’ as measured by doppler radar.
The rotation of tornadoes creates a distinctive signature in radar data, and can be used to estimate the track that the system takes over land. This image shows the rotational velocity of the systems that passed over Oklahoma on the afternoon of May 20, 2013. A single cohesive structure can be seen to cut across seven counties, with Moore directly in the middle.
The rotational velocity data, being run experimentally by the NOAA National Severe Storms Laboratory, is helping to identify potential tornado structures and increase lead-time for severe weather warnings.
![1352v1_20130521-Moore_Tornado-Rotation[1]](http://wattsupwiththat.files.wordpress.com/2013/05/1352v1_20130521-moore_tornado-rotation1.png?quality=75)
Here is an excerpt from the public information statement just released by NWS where they designate EF5 from damage surveys.
THE NATIONAL WEATHER SERVICE DISPATCHED FOUR DAMAGE SURVEY TEAMS TO THE PATH OF THE NEWCASTLE/MOORE OK TORNADO. NEW STATEMENTS WILL BE ISSUED THROUGHOUT THE DAY AS THESE TEAMS REPORT FINDINGS. THIS INFORMATION REMAINS PRELIMINARY AND THE INFORMATION HERE COULD CHANGE. .NEWCASTLE/MOORE TORNADO RATING: EF5 ESTIMATED PEAK WIND: 200-210 MPH PATH LENGTH /STATUTE/: 17 MILES PATH WIDTH /MAXIMUM/: 1.3 MILES FATALITIES: N/A INJURIES: N/A START DATE: MAY 20 2013 START TIME: 2:45 PM CDT START LOCATION: 4.4 W NEWCASTLE /GRADY COUNTY /OK START LAT/LON: 35.2580 / -97.6775 END DATE: MAY 20 2013 END TIME: 3:35 PM CDT END LOCATION: 4.8 E OF MOORE OK /CLEVELAND COUNTY /OK END LAT/LON: 35.3409 / -97.4007 SURVEY SUMMARY: EXPERTS SURVEYING IN MOORE HAVE DETERMINED DAMAGE IS EF5 WITH MAXIMUM WINDS OVER 200 MPH. FOUR SURVEY TEAMS CONTINUE TO INSPECT DAMAGE FROM THIS LONG TRACK TORNADO. INITIAL DAMAGE WAS FOUND AROUND 4.4 MILES WEST OF NEWCASTLE...SOUTH OF TECUMSEH ROAD ALSO KNOWN AS NW 16TH STREET AND EAST LAKE ROAD. THE TORNADO TRACKED NE TO THE INTERSTATE 44 BRIDGE OVER THE CANADIAN RIVER AND THEN TOOK A MORE EASTWARD TRACK THROUGH MOORE. TORNADO DAMAGE ABRUPTLY ENDS 0.3 MILES EAST OF AIR DEPOT ROAD AND N OF SE 134TH ST.INITIALLY PRODUCING EF0 AND EF1 DAMAGE THE STORM INTENSIFIED VERY RAPIDLY IN 4 MILES OR AROUND 10 MINUTES PRODUCING EF4 DAMAGE BEFORE REACHING INTERSTATE 44. NUMEROUS INDICATIONS OF EF4 DAMAGE WITH SOME AREAS NOW DETERMINED AT EF5 DAMAGE...THE HIGHEST CATEGORY ON THE EF SCALE...WITH OVER 200 MPH WINDS.
That 200-210 mph wind speed estimate is still far lower than the 1999 Oklahoma Bridge Creek-Moore tornado which had winds measured at 301mph:
…a Doppler On Wheels (DOW: Wurman et al. 1997, Wurman 2001) mobile Doppler weather radar detected winds of 301 mph (484 km/h), ±20 mph inside the tornado at a height of 32 m AGL (Wurman et al. 2007)
Here is what the storms looked like from satellite:
![1350v1_20130521-Moore-GOES[1]](http://wattsupwiththat.files.wordpress.com/2013/05/1350v1_20130521-moore-goes1.png?quality=75)
Note the collision of a strong cold and dry air mass with a warm moist air mass was the trigger for this event, “global warming” had nothing to do with it.
![1349v1_20130520-AirTemp[1]](http://wattsupwiththat.files.wordpress.com/2013/05/1349v1_20130520-airtemp1.png?quality=75)
All imagery from NOAA Environmental Visualization Lab.
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If this does not pluck your heart strings, what will? http://www.huffingtonpost.co.uk/2013/05/21/oklahoma-tornado-2013-survivor-barbara-garcia-mourns-dog-found-rubble-video_n_3311209.html?utm_hp_ref=uk
So many families suffering today, and for quite some time to come. So many youngsters perished. As a parent and grandparent, I couldn’t imagine what they must be going through.
Mr. Phillips,
I only had to read the link. I love dogs so much. I have tears in my eyes as I picture Ms. Garcia and her little friend. I’m going to pass on reading that one.
Thanks for reminding us with bracing experiential evidence, that people matter most of all.
Janice
You know that won’t stop them from claiming it.
Janice Moore says:
May 21, 2013 at 2:21 pm
Janice:
Go ahead and watch, it’s a happy ending.
From Janice Moore on May 21, 2013 at 2:21 pm:
Must be the wrong link. Try this one.
Yes, it is the same name, no tricks.
The only proper thing to say at this time is, condolence to the victims and their family members. The news images were of shocking natural destruction and heartening response….with Americans of every variety as victims….Americans of every variety as rescuers.
Grandstanding by political opportunists only demonstrates their demonic behavior, and just another reason to seriously consider who you place as your American leadership. Just like the shocking juxtaposition of the news images….i am heartened by the heroism of my fellow Americans….i am shocked by the ghoulish nature of our “leaders”….and awed by the powerful forces of Nature.
Godspeed your recovery Oklahoma.
[snip waaaaayyyyy off topic – mod]
…a Doppler On Wheels (DOW: Wurman et al. 1997, Wurman 2001) mobile Doppler weather radar detected winds of 301 mph (484 km/h), ±20 mph inside the tornado at a height of 32 m AGL (Wurman et al. 2007)
It’s actually hard to imagine a volume of air moving that fast. Let alone seeing your house (or your horse) go up into it.
That neighbourhood looks quite literally like some photo of Hiroshima.
One thing that got me… watching the news today Shep Smith was describing crowds of trucks sitting around, driven in from all over the area, loaded up with water, soda, food, and anything else they could think of just to give away, in hopes of helping people.
Kinda chokes me up.
You have to be a pretty low life to try and make political points on a story like this. Shame on them all. Is there no decency left? Where’s the public outrage?
And what will soon be showing up, to give aid and comfort to the shell-shocked and suffering, to show how much the government cares about those devastated by a massive tornado?
FEMA trailers.
Tornadoes. Trailer homes. What can go wrong?
Oh, Chris (thank you!) and K. D., it’s hard to type when you can’t see the keyboard. Thank you so much for caring enough to tell me to watch that deeply moving video as the woman is REUNITED with her little Schnauzer.
And, K. D., thanks esp. for your generosity — I’ll bet you winced as you pressed “Post Comment,” for you knew what I’d be sure to say….. [:)]
PRAISE THE LORD!
God allowed terribly sad things to happen yesterday, but God will bring good out of even the worst (Rom. 8:28).
And, even in the midst of the suffering, God is there. And God cares. Even about an old woman’s dog. “Not one sparrow falls to the ground… .” God sees our problems, our pain, from our point of view. If it matters to you, it matters to God.
God always answers prayer. God said, “Yes” to that woman. God also said, “No,” to others.
One question we must not ask is, “Why?” We could never understand the answer, so we are not given it.
**********************************
As a mother whose college-age son died in a plane crash in the Andes in the 1970’s said, through her tears:
“God is too kind to do anything cruel.
God is too wise to make a mistake.
God is too deep to explain Himself.”
[See Isaiah 55:8, 9]
For a much more intelligent discussion of the above issue than I could ever do, see C. S. Lewis’ The Problem of Pain.
Janice Moore says:
May 21, 2013 at 3:50 pm
I am relieved. I had seen the video previously, and assumed it was the same after seeing the cover, but after commenting was concerned that the video had been inappropriately been modified.
I am going to be hard and pragmatics here
If you live in a quake zone shouldn’t you expect earthquakes?
If you live on a volcano shouldn’t expect that volcano to erupt?
If you live on a flood plain shouldn’t you expect the river to flood?
If you live in tornado ally shouldn’t you expect tornadoes?
It is not like it hasn’t happened before.
” Steve B says:
May 21, 2013 at 6:25 pm
I am going to be hard and pragmatics here
If you live in a quake zone shouldn’t you expect earthquakes?
If you live on a volcano shouldn’t expect that volcano to erupt?
If you live on a flood plain shouldn’t you expect the river to flood?
If you live in tornado ally shouldn’t you expect tornadoes?
It is not like it hasn’t happened before.”
Well yeah. It is even more fun to go out and look for the tornado!
Here is a little tip for people who take photos of tornado damage from the air and post them. A photo that shows nothing but damage contains very little information. If you want to inform others with your photo then show the undamaged areas as a border on the damaged area or path.
Try to include “landmarks” or “markers” that will give us some perspective on the damage. If the devastated area contained only frame houses but along the border there are brick houses that survived then we can make better estimates of the tornado’s strength at that location.
Of course, the best aerial photo shows the tornado’s path as it winds its way through a variety of different kinds of buildings.
This, unsurprisingly, made the BBC news yesterday, I was waiting for some sort of attribution to “Climate Change” & was amazed whenever the news came on, that the presenters made the point that there was no evidence for this! OK, the rider “currently” was added, but it looks like times are a changing.
The specific problem here is that Okies seem to have forgotten what they formerly knew about the need for shelters. It struck me immediately when looking at those houses: they were built wrong (with lots of wide roof spans), and the money went into fancy stuff instead of safety. Later news about lack of shelter in the school verifies this impression.
Box of Rocks says:
May 21, 2013 at 8:47 pm
“Well yeah. It is even more fun to go out and look for the tornado!”
Well yeah but the seekers are usually prepared LOL
@- “Note the collision of a strong cold and dry air mass with a warm moist air mass was the trigger for this event, “global warming” had nothing to do with it.”
That is a very strong assertion which I doubt it is possible to substantiate.
I would accept that the rising surface temperatures, the rising moisture content of the atmosphere, the rising sea surface temperatures that provide the warm moist air and the variations in the jet stream that provide the cold dry air that are all caused by AGW may have only a small influence on the formation of tornado conditions and the subsequent storms.
But to claim that AGW had – ‘ NOTHING ‘ to do with the formation, position and severity of this storm does not seem credible. It also smacks of ideological opportunism to assert AGW has no role in this disaster just as much as claiming it does.
@Adam Gallon, May 22, 2013 at 12:35 am
Second that. When the BBC item started I though “Here we go …” – but we didn’t. In fact the narrative seemed to go out of its way to mention that there had been very damaging tornadoes in the past in Oklahoma and the inference I took from this was that they were saying “Precedented”. Time will tell if this is a new editorial policy.
izen says:
May 22, 2013 at 4:23 am
@- “Note the collision of a strong cold and dry air mass with a warm moist air mass was the trigger for this event, “global warming” had nothing to do with it.”
That is a very strong assertion which I doubt it is possible to substantiate.
I would accept that the rising surface temperatures, the rising moisture content of the atmosphere, the rising sea surface temperatures that provide the warm moist air and the variations in the jet stream that provide the cold dry air that are all caused by AGW may have only a small influence on the formation of tornado conditions and the subsequent storms.
But to claim that AGW had – ‘ NOTHING ‘ to do with the formation, position and severity of this storm does not seem credible. It also smacks of ideological opportunism to assert AGW has no role in this disaster just as much as claiming it does.
*****************************************************************************************************
So did AGW have anything to do with F5 Tornadoes say 250 years ago? 500 years ago? Pre WWII? or even Pre 60’s? AGW isn’t even credible.
A note of caution about comparing apples/oranges. The wind values from 1999 were based on a direct Doppler measurement whilst the values for the current Moore tornado are based on the EF scale *estimated* from damage. Also the Doppler observations were probably made some distance from the ground. The wind speeds in a tornado are higher several hundred feet above the ground as opposed to what is experienced on the ground. Also, when the Enhanced Fujita scale was adopted the overall wind speeds for each category were lowered based on more up-to-date measurements.
@- “So did AGW have anything to do with F5 Tornadoes say 250 years ago? 500 years ago? Pre WWII? or even Pre 60′s? AGW isn’t even credible.”
No, of course AGW did not have anything to do with, or affect F5 tornadoes 250 or 500 years ago just as human influences were absent from the causes of forest fires back then.
But the absence of a particular factor in the past that may modify these events does not mean that that factor is incapable of modifying such events in the present.
To argue otherwise is a clear logical error.