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4/9/12 Tornadoes/Large Hail in Oklahoma

Apr11
2012 Leave a Comment Written by Meteorologist Cory Mottice

April 9, 2012 was one of the best days chasing I have ever had. We (Becky Elliott and I) left Wichita, KS around 11am and headed towards our target destination, Woodward, OK. We arrived in Woodward around 2pm and waited for storm initiation.

A cu field was beginning to go up to our northwest, so we decided to head just a little farther northwest to Fort Supply. We hung out for a while on some back roads as the thunderstorms began to build to our north. At the time, the storms were moving straight east, but we knew that once they became surface based they would turn more to the south southeast so we stayed put.

A thunderstorm was beginning to intensify to the north of Ft. Supply, OK.

From Ft. Supply we headed east towards State Highway 34. A few miles west of State Hwy. this northern storm produced a rapidly rotating wall cloud and came very close to producing a tornado on multiple occasions. At this time another storm moving in from the south began colliding with the northern storm, cutting off the inflow and effectively killing the wall cloud.

A wall cloud came very close to producing a tornado on multiple occasions between Fort Supply and State Hwy. 34. Photo by Becky Elliott.

We hung out in this area for a little while waiting to see what the storms would do after they merged. Shortly after, they became surface based and started turning to the south southeast. This put the storm on a direct path to the Woodward, OK area.

We had no internet and our phones would only update every once in a while, so we really didn’t know what all was going on. We made a few phone calls and had a basic idea that a massive hail core was about to pass right over Woodward. We knew we needed to get south, but seeing as State Hwy. 34 was really our only south option we waited for the core to pass off to the east.

A few minutes later we headed south to Woodward. We ran into the northern edge of the hail core and encountered sporadic hail to the size of half dollars or so. As we ventured into the north side of Woodward, we came across the biggest hail I have ever seen. A majority of the hail on the ground was at least the size of baseballs, with a few pieces just over 4 inches!

Picture of the 4 inch hail that fell in north Woodward, OK.

After stopping to take some pictures of the massive hail, we began our trek south once again. The view of the storm at this point was unbelievable. We were right under the largest meso-cyclone we had ever seen. The entire meso was several miles wide and contained very rigorous rotation.

Looking up at the edge of the large meso-cyclone over Woodward, OK. Photo by Becky Elliott.

As we headed just south of Woodward, we were getting reports of a tornado and within a few seconds we saw it just off to our north. We rushed to get out of the car and get video and pictures, but by the time we got out of the vehicle it was already lifting.

Image of the tornado just after it started lifting. Photo by Becky Elliott.

We continued a little west to try to get out from underneath the meso. Approximately 1 mile down the road we pulled over to get a better view of the storm. The previous tornado touched down about 2.5 miles from where we were at this point and we were still under the edge of the large meso.

Out of no where, a couple of people next to us yelled “tornado on the ground!” and were pointing to a field right next to us. We looked but didn’t see anything. After a few seconds we saw some dirt being kicked up about 150 yards away, and the area of dirt being kicked up began to grow very quickly. It was at this point that we realized it was a small tornado (or maybe even just a spin-up on the rear flank downdraft) and we took off for the car. This small tornado was upon us before we could even run a few feet to the vehicle.

Winds of 70-80 mph quickly hit us right as we jumped in the car. I had trouble closing my door, but after a second attempt managed to pull it shut. We then gunned it out of there and drove another mile or so down the road. Everyone else who was pulled over on the road with us made it out safely as well.

This image was taken by Becky Elliott just moments before the small tornado hit us. There was no indication what-so-ever that a tornado was about to form right here. This just goes to show you how quickly tornadoes can form.

When we finally pulled over we looked back on the storm and could not believe what we saw. The meso-cyclone was huge and was extremely close to the ground! It was perhaps the most beautiful sight I have ever seen.

An image of the most incredible meso-cyclone I have ever seen near Sharon, OK! Photo by Becky Elliott.

Several tornadoes touched down under this meso and most were short-lived. Unfortunately, from our vantage point, they are not visible here.

We continued to follow this storm southward towards the Vici area. It looked amazing the entire time and tried to produce several more times. A little while later, we pulled over a few miles east of Vici and saw another brief tornado. We then headed back to Vici to figure out where to go from here.

A bowl shaped wall cloud nearly produced a tornado just northeast of Vici. Photo by Becky Elliott.

We were told that a hail core was going to pass either right over Vici or just to the west of town. We didn’t want to be stuck in the hail core, so we decided to head west 5 or 6 miles to avoid the core. We pulled over about 4 miles west of town to look back on the storm when out of no where, a golf ball sized piece of hail landed right at our feet. We immediately went back into the car and continue west. However, we were too late. In just a matter of moments hail close to baseball size started falling and I pulled over off the road next to a few pine trees for protection.

Taking shelter behind a few pine trees to protect us from the large hail. Photo taken by Becky Elliott.

After about 5 minutes of hail, we were in the clear and only suffered one minor dent on the hood. One gentleman a couple hundred yards in front of us wasn’t so lucky, however. He had a near baseball sized piece of hail shatter his entire back window.

Near baseball sized hail was falling all around my car!

When it was all said and done, we saw 5 tornadoes (one or two may have been “RFD spin-ups”) and measured 4 inch hail. We would have been able to position ourselves better in location to the storm had we had internet, but this was the best we could do chasing practically blind, and I’d say we did pretty good!

We were treated to a beautiful sunset on the way home. Photo by Becky Elliott.

What we saw:

Severe Storms – 8
Tor-warned Storms – 2
Tornadoes – 5
Biggest Hail – 4.1″

Posted in Severe Weather - Tagged , , , ,

Why Meteorologists Chase Storms

Aug16
2011 Leave a Comment Written by Meteorologist Cory Mottice

As a professional storm chaser myself, I know all too well the things some people associate with storm chasers. I can’t count the number of times that I was told I only chase storms to see the destruction severe thunderstorms and tornadoes can cause; or that I only chase to make money from my videos.

While the power of tornadoes, and severe weather in general, is breathtaking, we by no means ever want to see a tornado make a direct hit on any populated area, or even hit a lone house in the open country. Sure, we hope to see a tornado or two when we go out chasing, but we want to see it in the middle of an open field, miles away from any kind of structure. Unfortunately, this isn’t always the case. We have seen far too many times this year alone the destruction a tornado can cause. Just look back at the Joplin, MO tornado or the massive tornado outbreak in the middle of April. These are some of the worst weather-related tragedies in history, and we need to do whatever we can to try to prevent catastrophes like these in the future. One life lost is one too many.

As meteorologists we have a responsibility to keep the public safe in any way possible. Whether that means waking up all your family and friends in the middle of the night to keep them safe, or even posting some sort of warning on facebook or twitter; just a small act like this might save a life.

So back to the point at hand, why do meteorologists chase storms? Simply put, we do it to save lives. When we are out chasing storms, we have the best forecasting tool available, our eyes. Unlike radar and satellite imagery, we can see what is going on in real time. We don’t have to wait 5 minutes for the next radar scan to come in, instead we are watching it as it is happening.

Tornadoes can spin up in a matter of seconds, and last for only a minute or two. If the tornado forms in between radar scans, there is no way for the NWS to know that this is happening. This means that a tornado warning may not be issued, and the public would then be unaware of the dangers that lie ahead. This is where storm chasers can mean the difference between life and death for someone else.

If we see any indication of a tornado forming, we will immediately contact the National Weather Service (NWS) and tell them what we see. They will then issue a tornado warning to alert the general public. Even though this warning may only be issued minutes in advance, it could save someone’s life.

In the unfortunate event that a tornado does strike a populated area, we help out in what ever way we can; whether that means freeing people that are trapped under debris, or handing out water to people in need.

Another priority for some storm chasers is to conduct research so we better understand how tornadoes form. Reed Timmer and his crew are a great example of this. Risking their own lives to collect data on tornadoes. This data will hopefully one day provide meteorologists with a better understanding of how tornadoes form, which would in turn mean more lead time for warnings in the future.

Posted in Severe Weather

April 22, 2010 – Goodnight, TX (Moderate Risk)

Apr12
2011 Leave a Comment Written by Meteorologist Cory Mottice

As soon as classes ended on Thursday, April 22, 2010, my fellow storm chasers (Charles Lubensky, Terran Kirksey, and Matt Shipe) and myself headed out towards Goodnight, TX for what looked to be a good day of chasing. A few of my classmates also decided to tag along this day and for several of them this was their first tornado. We found a nice open field about 2 miles east of Goodnight, TX and watched a wall cloud for about 10-15 minutes before it produced multiple tornadoes. We followed this storm for another hour or so and watched it produce several more tornadoes. By days end we had seen a total of 6-9 tornadoes, the most we have ever seen in a day by far! Below is some of the footage we took on this day. Enjoy!

What we saw:

Severe Storms – 2
Tor-warned Storms – 2
Tornadoes – 6 – 9

Tagged

March 8, 2010 – Hammon, OK (Slight Risk)

Apr12
2011 Leave a Comment Written by Meteorologist Cory Mottice

The first chase of the year had finally arrived! We decided to head out around 12:30PM even though the chance for any tornadoes seemed pretty low. We really just wanted to make sure everything would work like it was supposed to so that we would be better prepared for future chases. We initially started out heading up to northwest OK, but on our way there we noticed that southwest OK was clearing very rapidly so we decided to head south on 183 towards Hobart, OK and then from there we headed southwest to Mangum, OK. By now it was about 4:15PM and a few storms started firing just to the west and southwest of Sayre, OK (33 miles to our NNW). With nothing else firing we decided to head back north and get on these storms. We lost signal for a while so we had no radar data to look at, but we had a good visual on the storm the entire time so we knew where to head. We finally got within a mile of the rain-free base near Sayre, OK but didn’t see anything too impressive at first. After a few minutes there was a small lowering that formed and it started to rotate rather rapidly, albeit a ways off the ground. We stuck with this bit of circulation until about 5PM when we decided to head a little south to catch the storm that was going up since it looked more impressive on radar. Within 10 minutes of leaving the storm we received a call from a fellow chaser and was told that there was a large tornado on the ground! We couldn’t believe it, the storm looked very disorganized when we left it and it still looked disorganized on radar. We immediately turned around and the chase was on!

We were about 8 miles south of I-40 when we heard the news and the tornado was a couple miles north of I-40 (the exact place where we were just 20 minutes ago!) We headed north on 283 and then hopped on I-40 northeast out of Sayre. We were told the tornado was still on the ground but we couldn’t see it. We kept looking off to our north and then out of nowhere, “THERE IT IS!”, we finally saw it! It was huge! We were still a good 10-15 miles from the tornado, but it was so high based we could see it perfectly! We continued heading northeast on I-40 and then took 34 north towards Hammon, OK. We had the tornado in our sights the entire time and it had showed little sign of weakening. We were about 2-3 miles south of Hammon when the tornado passed through the southern part of town and it then roped out shortly thereafter. We rolled up on Hammon only a few minutes after the tornado passed through and the damage was unbelievable. Five homes were completely destroyed along with the county barn.

The police were blocking our route through Hammon so we turned around and found the quickest way to get back on the storm since it looked like it was going to produce another tornado. A few miles down the road it produced again! This time it was a very brief small tornado that caused no damage, but it was a tornado nonetheless! Nighttime finally arrived and the storm started to lose its “structure” so our chase was over. Needless to say the first chase of the year was quite a successful and entertaining chase! We have finally seen our first (and second) tornado after 2 years of chasing! The first part of the footage (below) was taken by Colt Forney and the second part was from my team. The video on the left was also taken by my team. We ended up driving 450 miles in 10 hours.

The preliminary tornado report is shown below. The first tornado has been preliminarily rated an EF-2 and the second an EF-0. The path length of the EF-2 tornado was approximately 10 miles long and the max width has yet to be determined. A path length or width has yet to be determined for the EF-0.

Images courtesy NWS.

EF-2 Tornado Track

000
NOUS44 KOUN 092239 AAA
PNSOUN
OKZ004>048-050>052-TXZ083>090-101800-

PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
440 PM CST TUE MAR 9 2010

…PRELIMINARY DAMAGE SURVEY – HAMMON OK TORNADO…
THE NATIONAL WEATHER SERVICE CONDUCTED A DAMAGE SURVEY IN ROGER
MILLS AND CUSTER COUNTIES THIS AFTERNOON. WHILE WE ARE STILL PUTTING
TOGETHER SOME OF THE DETAILS…HERE ARE THE PRELIMINARY FINDINGS…

TORNADO ONE – HAMMON OK
THIS TORNADO HAS BEEN RATED AS AN EF2 ON THE ENHANCED FUJITA SCALE.
THE RATING IS BASED ON SEVERAL SPOTS OF SIGNIFICANT DAMAGE…
INCLUDING A HOME AND THE COUNTY BARN ON THE SOUTH SIDE OF HAMMON.
THE DAMAGE IS APPROXIMATELY 10 MILES LONG.

TORNADO TWO – NORTHEAST OF HAMMON TO NORTH OF BUTLER
WE WERE NOT ABLE TO FIND DAMAGE ASSOCIATED WITH THIS TORNADO…BUT
EVIDENCE FROM VIDEO INDICATES A SECOND TORNADO DEVELOPED SHORTLY
AFTER THE HAMMON TORNADO DISSIPATED. THE PRELIMINARY RATING IS EF0.

CHECK OUR SPECIAL EVENT PAGE AT
WEATHER.GOV/NORMAN/?N=EVENTS-20100308 FOR MORE DETAILED INFORMATION.
WE WILL CONTINUE TO UPDATE THIS PAGE AS WE GATHER MORE DETAILS.

IF YOU HAVE IMAGES OR VIDEO OF THE TORNADOES THAT YOU WOULD LIKE TO
SHARE…PLEASE LET US KNOW. SEND AN E-MAIL TO
SR-OUN.SPOTTER@NOAA.GOV.

THANKS TO THE OKLAHOMA DEPARTMENT OF EMERGENCY MANAGEMENT…AS WELL
AS THE CUSTER…ROGER MILLS AND WOODWARD COUNTY EMERGENCY MANAGERS
FOR THEIR ASSISTANCE.

$$
SMITH

What we saw:

Severe Storms – 1
Tor-warned Storms – 1
Tornadoes – 2

Tagged

2009 Chase Summary

Apr12
2011 Leave a Comment Written by Meteorologist Cory Mottice

Total Miles – 5,400 miles

Total Hours – 123.6 hours

Total Severe Storms – 21

Total Tor-Warned Storms – 11

Total Tornadoes Seen – 0 (We saw a funnel that supposedly touched down, however, we did not see it touch down. We may also have seen a rain wrapped tornado.)

June 12, 2009 – Norman, OK (No Risk)

Apr12
2011 Leave a Comment Written by Meteorologist Cory Mottice

I was sitting at home watching tv and saw some lightning so I decided to go and check the radar. At first it was nothing too impressive, just a cell located a few miles to the north of Norman. I waited for one more scan and saw that the storm started wrapping up rapidly and I looked out my window and saw a funnel cloud almost right above my apartment! I didn’t have a good view from my apartment so I hopped in the car and headed east on Hwy. 9 trying to get a clear view of the funnel.

Along the way I picked up Charles and our pursuit to catch the Norman tornado on film began. I have never seen highway 9 as packed as it was that night, it was quite a scene. Cars were pulled over on the side of road for as far as the eye could see, a funnel cloud was visible just one mile east of my apartment, and no tornado sirens. The one time Norman actually needs to set off the sirens they weren’t going off. After the storm had completely passed through Norman the sirens went off, but it was too late, the damage had already been done. We never got to see the tornado, but we had heard that one touched down so we went to investigate.

A house was missing half of its roof, the two car garage door was ripped right off the house and laying in the driveway, while the other garage door didn’t fare much better (pictured below). Wooden fences throughout the entire neighborhood were knocked over and a few small trees were snapped, but this house definitely got hit the hardest. This tornado was rated an EF-1 and was the first tornado to touch down within the city limits of Norman since 1992. I only ended up driving 15 miles in about an hours time.

Photo by Patrick Marsh

What we saw:

Severe Storms – 1
Tor-warned Storms – 1
Tornadoes – 0

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May 15, 2009 – Woodward, OK (Slight Risk)

Apr12
2011 Leave a Comment Written by Meteorologist Cory Mottice

It was the last day of finals, the last day of our junior year, and the last chase of 2009 (or at least we though it would be). I was completely exhausted from pulling three straight all nighters in a row with little more than an hour of rest per night, but I decided to go chasing anyway. Charles and Doug tagged along and we headed northwest to Woodward, OK. KSBI had contacted us so we were on the clock, making our decision on whether or not to go out much easier. A few storms started to fire early but had trouble amounting to anything special.

When we arrived in Woodward we sat there for an hour or so and watched the radar for any new developments. The discrete storms that had fired earlier had quickly turned into a multicell cluster. The storms did not look like they were going to do anything at all so we started to head back after only being out just over two hours. However, as we were on our way back Brandon, a meteorologist for KSBI, thought that the southernmost part of the multicell cluster might do something so he sent us back to near Woodward to follow this storm. The multicell cluster started to transition into a squall line extending from northern Texas to the midwest and our job was to follow the line into Oklahoma City. The entire line was moving fairly slow so we knew we were in for a long night.

For a while we stayed just ahead of the storm and got some footage of an amazing looking shelf cloud (pictured below). As night began to fall we got out a little ahead of the storm and set up on top of a hill looking towards Kingfisher, OK and shot some live footage as the squall line moved through the area. We encountered a very brief period of pea sized hail with torrential downpours before we were told to head south to Okarche. Since the squall line was angled from the southwest to the northeast we had about five minutes to set up in Okarche before the rain arrived. After getting several live shots for KSBI we continued to follow the storm back to Norman, OK. We remained in torrential downpours for most of the way and encountered several streets that had upwards of 8 inches of water standing in the roadways. Other than that there was no severe weather with these storms and we ended up driving 430 miles in 9.5 hours during our last chase of 2009.

The shelf cloud with a lot of mammatus clouds.

More mammatus clouds

What we saw:

Severe Storms – 2
Tor-warned Storms – 0
Tornadoes – 0

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May 13, 2009 – Norman, OK (Moderate Risk)

Apr12
2011 Leave a Comment Written by Meteorologist Cory Mottice

It was finals week, so as expected I was up at the National Weather Center studying for my dynamics test that I had on Thursday instead of chasing, which is what I really wanted to be doing. A nice squall line was moving towards Norman so a bunch of meteorology friends and I went up to the observation deck of the national weather center to observe the storms from afar. Just as the squall line was about to hit Norman the Norman Bubble kicked in. The Norman Bubble is an invisible circle around Norman that causes all severe weather to bypass Norman, which has been especially strong this year. Norman did not even end up getting a drop of rain from the massive squall line that ran from central TX northeastward to the upper Midwest.

A few storms then started to build just behind the squall line and were heading directly towards Norman. The storms did not look all that impressive so I decided to go grab a bite to eat real quick before the rain got to the weather center. No longer than 5 minutes after I left I got several phone calls telling me that the storm went tor-warned! I immediately turned around and headed back to the weather center. I went back up to the observation deck and watched the storm as it rolled in. It was still a little ways away but we could faintly see the base of the storm and a wall cloud when there was good CG lightning behind the wall cloud. A few minutes later the tornado sirens started to go off in Norman.

As the storm got closer we noticed that not only was there a wall cloud but rather there were two wall clouds and a nice funnel cloud just north of the city! I was intently watching the funnel when I saw a power flash directly beneath it (this was a confirmed EF0 tornado). The observation deck started to get packed with probably around 30 people up there watching the storm roll in and even more people (mostly nearby residents that did not have a basement or storm shelter) in the downstairs lobby. The storm was heading directly at Norman and putting on a very impressive lightning show when it decided to change its course at the last minute and it ended up missing Norman by a couple of miles to the east. Needless to say this storm took away a lot of studying time but it was a good break and pretty exciting to watch. I got over 50 texts and several phone calls when Norman went under a tornado warning and everyone was asking me what was going on and whether or not they should take cover. It was a pretty crazy night to say the least. We ended up walking up a few flights of stairs in two hours…the shortest chase ever!

What we saw:

Severe Storms – 1
Tor-warned Storms – 1
Tornadoes – 0 (saw a power flash from a confirmed EF-0)

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May 5, 2009 – Breckenridge/Necessity, TX (Slight Risk)

Apr12
2011 Leave a Comment Written by Meteorologist Cory Mottice

We left Norman, OK at 1:30pm and headed towards Graham, TX. When we got to Graham we sat there for about two hours and waited for something to fire. Around 6pm the first storm fired bear Breckenridge, TX and headed east from there. We decided to drive towards it since it was the only storm out there and in no time the storm died. However, shortly after it died another storm fired in Breckenridge and quickly gained strength. The storm was moving directly east at less than 10 Kts. The storm quickly turned into a supercell and began to take more of a ESE direction. We drove down near Necessity, TX and were looking for a place to set up so we could watch the storm move directly at us. While driving down state highway 16 we saw the Tornado Intercept Vehicle (TIV) sitting on a road that said it was closed. We did not want to head any farther west because we would have headed right into the core, which had softball size hail with it. We decided to follow the TIV down the closed road and in the process drove around several road closed signs that said the bridge was out ahead. Turns out, the bridge was intact! We drove down the road a ways more and found a perfect spot to stop and watch a massive rotating wall cloud less than 150 yards from us! The area where we had stopped was in the path of the inflow and just to the SSE of the storm.

As we were taking pictures of the storm and watching the wall cloud cycle, hail started to fall. We immediately got back into the car to sit the hail storm out. First the hail was quarter size, then golf ball size, then nearly tennis ball size! This was by far the largest hail that I have ever been in. About 3 minutes later the hail came to a stop and we grabbed a few pieces and took pictures (shown below). We ended up getting ahead of the storm one more time, but by this time it was quickly dying out. This was the best looking supercell I have ever personally seen, and yet, it never even went tor-warned.

On the way home we stopped to grab a bite to eat when I noticed that I had a hold in my driver’s door! A piece of hail went clean through the plastic piece located directly under the door handle. Luckily this door handle was already broken so I am not even going to bother fixing it. We ended up about an hour southwest of Dallas and drove a total of 650 miles in 12 hours.


The Tornado Intercept Vehicle (TIV) that is featured on Discovery Channel’s show, Storm Chasers.

The rotating wall cloud over Necessity, TX.

Some impressive towering CU.

Tennis ball sized hail (~2.25 inches) that put a hole in my door (below).

The hole it put in my door.

What we saw:

Severe Storms – 1
Tor-warned Storms – 0
Tornadoes – 0

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April 26, 2009 – Vici/Seiling/Waynoka, OK (High Risk, PDS)

Apr12
2011 Leave a Comment Written by Meteorologist Cory Mottice

We left at 11:30am and headed to Seiling, OK. Around 11am the SPC issued a High Risk area for most of Western OK and parts of central OK. Several showers and weak t-storms fired in the TX panhandle and western OK in the morning due to the strong convection and moved out of the area by noon. Behind these storms a few discrete cells started to form around 12pm, local time, and we headed west to Vici, OK to intercept a rapidly developing storm. While sitting in Vici the storm went tor-warned and was heading right for us. We moved about 2 miles to the east of Vici so as to not get hit directly by the core. By the time the storm arrived the tornado (if there even was one) was completely rain wrapped. We watched an intense area of rotation surrounded by heavy rain/hail pass about 4 miles to our south west and then pass right over the town of Vici.

There were two storms right behind this one that were also tor-warned but since we were chasing for KSBI we had to stay on the one we were on. With a poor road network in this part of OK we were not able to immediately catch back up to our storm, and by the time we did it was quickly dying out. While trying to catch back up to this storm we passed through the town of Waynoka, OK and there was a lot of flooding in this area. I was driving through water that nearly came over my tires several times.

Of course, the storm directly behind this one produced the only tornado in all of Oklahoma on this day. Throughout the state there were several reports of extremely large hail, upwards of 4 inches, and only 1 tornado report. This was quite a bust considering there was a high risk for this part of OK along with a PDS (Particularly Dangerous Situation). All in all we drove 550 miles in 12.5 hours.

Low hanging scud on top and a possible rain wrapped tornado is pictured on the bottom.

What we saw:

Severe Storms – 4
Tor-warned Storms – 2
Tornadoes – 0 (a possible rain wrapped tornado)

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