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Tornado Outbreak in Upper Midwest

by Rory Groves        June 17, 2010  |  5:51 pm  |  Category: Latest News

Numerous tornadoes, including multiple-vortex tornadoes were reported Thursday afternoon and evening across South Dakota and Minnesota as a powerful weather system moved through the Upper Midwest:

Storms are expected to continue overnight before moving into the Mississippi Valley on Friday.

 

 

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May 3, 1999 Oklahoma Tornado Outbreak

by Rory Groves        June 7, 2010  |  10:00 am  |  Category: Latest News

by Sam Cornette

Sam Cornette has been a long time customer and friend. When we talked a few months ago, he recounted his sobering experience as an officer responding to the widespread destruction of the May 3, 1999 tornado outbreak in Oklahoma.  I asked if I could share his story with you in hopes of communicating the serious threat and devastation of F5 tornadoes. His account follows:


It was 7:15 PM and my fellow officer and I were having dinner a few miles south of Moore, Oklahoma. We had heard rumors throughout the day about the possibility of severe storms (when the fine meteorologists of OK City metro give you a heads up, you'd better listen). Someone decided to do just that, turning on the radio to hear: "if you want to survive his storm, don't be above ground."
 
I was a commissioned police officer but not on duty at the moment. However that would quickly change.
 
The radio hadn't been on five minutes before things went crazy in the restaurant—yelling, total panic. I got up to see what was happening behind the counter to see employees jumping under furniture, while others rushed to their cars.

An F-5 tornado had spun across the Oklahoma country side and had sneaked up to the doorstep of Moore, Oklahoma. My partner and I ran out the door and literally climbed the building to get a better look. From our vantage point we could clearly see and hear a monster on the ground--not only the train like sound--but almost the sound of a sustained explosion.
 

Incomprehensible Destruction

We ran to an available truck and started in the direction of the storm. We were moving up the interstate as the tornado crossed in front of us. It was an amazing sight. It looked as though the ground was in the sky and likewise that the sky was in the ground. A black cloud of debris resembling a blender moved through Moore. I had never been afraid of tornadoes. In fact, I was drawn to them. This storm would change that view. As we sped in the direction of the moving storm, we saw all kinds of debris including something that fell onto the road maybe a mile in front of us, bounced across the four lanes, and landed over a guard rail. We had no idea that we had seen a car fall out of the sky.
 
It was compacted to almost half its size. Mud, metal and grass. It was so small it didn't even look like a car. We did a close inspection and were convinced it was an empty vehicle. Later that night, my police chief’s daughter would tell us she saw two pairs of lights in the sky. She didn't know she was looking at headlights.
 
We immediately ran to the worst-hit path. We were near an overpass where we later learned several people had been swept away. A commissioned state officer had assumed a command post for that particular location. We identified ourselves as officers, asking what we could do. He closely examined our credentials, copied the vital information on his clip board, and put us to work in on-duty status.
 
We were assigned areas of duty by the the officer in command as individual--one man units---because that's how new this emergency was. We walked through the destruction, helping as many as possible, making mental maps, and taking field notes. Already there were lines of people walking hand in hand sweeping large areas around both sides if the interstate in an attempt to locate those who had disappeared from underneath the overpass, where the tornado had literally taken them, from what they thought would be a safe haven.

The first hour in such a situation teaches one that there truly is only so much one person can do. It was amazing to behold two story apartment buildings sheared off just above the foundation. All those people and the essence of their existence was blown out over half mile path. Because it had just happened, those who could were just then emerging from the destruction trying to assess the situation. The stench of natural gas, the sound of it escaping from ruptured lines, confused wounded people looking for loved ones. Welcome to nature at its most horrific.


Search and Rescue Intensifies

We continued in our search-and-rescue efforts. But Mother Nature would still out-rank our efforts in more than one instance. You may have every motivation imaginable to want to move a fifteen thousand pound wall to rescue victims, but even with eight men you just can't do it. It's frustrating to be so small in the face of something so powerful.
 
We did all we could with each trip, and with each trip, more officers, more equipment, better briefings and more success in getting the injured to the Triage centers.
 
Sometimes in our search through the damage there were audible voices where people were trying to dig out and other times not so audible. Sometimes we couldn't tell what we were hearing: animal, human, or the uneasy movement of layers of broken building materials.

I don't recall ever being that overwhelmed that many times, that close together. Any officer there would tell you the same.
 
It lasted all night, and continued for about ten days, with brave volunteers from all over Oklahoma and even surrounding states helping out.


Aftermath of an F5 Tornado

I hear everyone describe tornado devastation as a war zone. To me it was more like jet-powered bull dozers on the ground-half mile across--and I am not even sure that covers it. It is actually unthinkable until you see it. Pictures of Greensburg Kansas, which I only saw on TV and on Storm chase websites, are all very familiar, but there’s no way to get it unless you are actually there.
 
The national weather service, the Norman office and all the meteorologists in city gave it their best that day, and as a result, many people actually listened. I personally talked to many who had survived by lying in a ditch, crawling into a concrete culvert, some other thing that, literally put them below the surface of the ground. They listened to the warnings, and they tried to do exactly as they were told, thank God. Otherwise it would have been much worse. The poor people who took shelter under the overpass experienced the then relatively unknown danger of accelerated winds. They were doing the best they could at the moment. Several tried but didn't make it to the overpass though it was reported they ran for it only to be engulfed by the enormous storm.
 
One of the most amazing things I heard was from a man who survived the in that location by hanging on to the guard rail which he described as like white knuckling the wing of a passenger jet in flight. This would have to be close to right. A 737 jet cruises at about 350 mph and we now know the wind under the overpass tends to be faster than in the storm itself. He had hung on through winds that were in excess of three hundred miles per hour.
 
One of the most amazing things I saw was a full sheet of plywood seamlessly driven into what appeared to be a concrete wall. I along with several other officers spent a good five minutes just trying to actually accept what we were really looking at. The impossible was hanging fifteen feet up in the air on the side of what was obviously a block building. It was as though it had been made that way.


Be Prepared, Have a Plan

I had never been asked about my account of this day, and had never really thought about sharing it, until I became friends with Rory Groves. I am please to make this contribution to his website. May 3rd 1999 was so impressive it still seems like last week, and it’s now past ten years ago.

When you hear a tornado warning, have a plan and act on it for you and your family as though your life depends on it, because it does. It's anybody’s guess as to the seriousness of the consequences if you do not.
 
It is easier to pay heed to warnings, and make intelligent decisions, while you still have time, than it is to recover from being caught off guard.
 
 
 
Fmr LE Officer Sam Cornette

Severe Weather in Ohio, Illinois, Michigan

by Rory Groves        June 6, 2010  |  4:45 pm  |  Category: Latest News

CNN -- "Seven people were killed in Ohio as severe thunderstorms and tornadoes raked the Midwest on Saturday and early Sunday, authorities said... The town of Streator looks "like a war zone," Mayor Jimmie Lansford said. A total of 50 people were triaged, and 17 were transferred to hospitals and later released, he said.

"The National Weather Service confirmed Sunday the tornado was an F2, with winds between 113 and 157 mph. Officials report about 30 homes damaged, including three destroyed on the south side of Streator."

 

Read More...

 

 

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Tornado Tracking in Weather Defender Pt. 1

by Rory Groves        May 24, 2010  |  2:23 pm  |  Category: Tips & Tricks

In our first tutorial on Tornado Tracking, we'll get you up to speed on the basic tornado tracking features in Weather Defender, including:

  • Tornado Watch & Warning Polygons
  • Severe Weather Bulletins
  • Wall Clouds & Mesocyclones
  • Tornado Vortex Signatures

 

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VIDEO: Multi-Vortex Tornado at Wakita, OK

by Rory Groves        May 11, 2010  |  9:17 am  |  Category: Latest News

Storm Chaser Scott Weberpal of Weather Paparazzi/BNVN captured this footage yesterday of a strong multi-vortex tornado near Wakita, Oklahoma on Monday, May 10, 2010.

Two people were reported killed by the violent storms that hit the southern plains yesterday.

 

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New Severe Weather Tracking Layer

by Rory Groves        April 30, 2010  |  9:33 am  |  Category: Latest News | Tips & Tricks

A new layer based on the Mesocyclone Detection Algorithm (MDA) was released today. Mesocyclones indicate areas of rotation inside a thunderstorm, which can be precursors to Wall Clouds and Tornadoes.

 

This freely available layer to all registered Weather Defender customers provides the following benefits:

  • More accurate and frequent updates concerning rotation inside thunderstorms (precursors to tornadoes)
  • Detailed information about the strength, dimension, and movement of each circulation
  • Historical and future tracks of the circulation for long-lived mesocyclones

Here's how to add this new layer to your map:

1.   Unlock your map by clicking the padlock icon in the upper-right of the Map Layers window
2.   On the main toolbar, click Map > Add Layer
3.   In the Layer Browser, click the Severe Weather category
4.   Find the layer labeled "Meso (MDA)" and click Add To Map

 

 

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"...an invaluable resource" for extreme weather

by Rory Groves        January 4, 2010  |  9:59 am  |  Category: Testimonials

"I concur with these testimonials. this year has been the exception as opposed to the norm with respect to weather in Kentucky. When weather events affecting public welfare have occurred they have been on the extreme side whether flooding in August and September or just the past week an EF 2 tornado in Casey County. Weather Defender has been an invaluable resource in bringing all aspects of the dynamic weather picture together to present an ongoing assessment of potentially dangerous weather situations."

Chuck Danison
Shelbyville, Kentucky

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Perryville resident protects friends & family outside the range of Tornado Sirens

by Rory Groves        November 23, 2009  |  4:04 pm  |  Category: Testimonials

"We've had 2 tornadoes near Perryville in the last 3-4 years that have impacted many people we've known.  This includes killing 2 people that my wife and I both worked with for many years....  [in another situation] the grandmother of a friend of mine was living in a town that I could see was in the path of a tornado I was tracking in the Weather Defender (confirmed by Local Storm Reports).  She lived in a trailer and was not in an area where sirens were sounded or could be heard.  I called my friend and told her that a tornado was headed for the area in which her grandmother lived and she called her grandmother.  She was able to get out of the trailer and to a safer location.  Fortunately,  the tornado was not on the ground long enough to get to her place, but my call was 15-20 minutes before it would've gotten there.   Fifteen to twenty minutes may not sound like much, but it can mean the difference between life and death when a tornado is in the area.  They were very grateful for my call.

Jamie Robinson
Perryville, Missouri

 

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Our Story: The Day that Changed Everything

by Rory Groves        October 21, 2009  |  12:07 pm  |  Category: Company

“It was awful,” Rory remembers,  “like nothing I had ever seen before.”

For SWIFT Weather founder Rory Groves, June 18, 2001, started just like any other day.

“I had come home from work that day, booted up the software I was developing, and saw that severe thunderstorms had developed just north of Minneapolis/St. Paul, where I lived,” Rory said.  “It looked to me like they had potential to turn tornadic.”


Back in 2001, Rory was a storm chaser who had combined his talents in computer programming with his passion for weather to develop the first-ever navigation software for storm chasers.

“The idea was to combine radar and satellite imagery with road maps and GPS to help the user locate and ideally see a tornado as it touched down,” he said.

On that Monday in June, Rory saw an opportunity to field test his evolving software, so he set out from his home in Minneapolis and began driving toward the storm.

“I tracked the storms north and east of the Twin Cities and ended up arriving just minutes after an F3 tornado touched down in Siren,” he said.

Siren, Wisconsin is a tiny community of only 900 residents in northwestern Wisconsin, and following that tragic tornado, three elderly people were killed, a dozen more injured, and hundreds of structures were damaged by the devastating twister that hit that evening.

“The damage was so intense you could see it on satellite photos the next day,” Rory said.

Rory’s shock at witnessing such devastation first hand was compounded when he learned that the tornado sirens had failed to sound.  He discovered that the sirens had been knocked out by a storm a few weeks before and had not yet been repaired.

“Here I had travelled over 100 miles in over two and a half hours,” Rory explained, “and arrived in Siren literally within minutes of the deadly tornado because the software I was working on allowed me to track the exact path.  So I knew about the potential of this storm more than two hours before it hit, and some of the residents of Siren may have had no warning at all.”

“If it wasn’t for the brave actions of Siren’s police and first responders who traveled door-to-door in some cases to warn citizens, I have no doubt the death-toll would have been much higher,” Rory recalls.

June 18, 2001 was the day Rory’s hobby became a mission.

“That was the day when I realized that my software wasn’t just for storm chasers,” Rory said.  “I saw that if this software could be used to accurately predict where tornadoes would strike, it could be used by ordinary folks to protect themselves and their families.”

Eight months later, Rory released SWIFT Weather, the original version of what would eventually become Weather Defender.  And since that day, Rory’s company has been dedicated to serving residential customers in the disaster-prone areas known as Tornado Alley.

Rory also began to actively promote weather safety in his community, teaching public awareness classes and helping organizations plan for weather emergencies.

“Our mission is to save lives, plain and simple,” Rory said.  “That’s why we exist.”

Rory’s dedication is clear.

“It’s not enough to assume that someone else is looking out for you.  When it comes to your own family, you need to know for yourself.  You need to prepare for yourself.  And I sincerely believe that Weather Defender can help protect you and your family from severe weather,” Rory said.  “That’s why we made it.”

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