Showing posts with label tornado outbreak. Show all posts
Showing posts with label tornado outbreak. Show all posts

Sunday, January 1, 2012

Historic Tornado Series #1



Mr Twister 
Historic Tornado Series 
Part 1 of 10
The Bridge Creek-Moore 
Oklahoma Tornado May 3rd, 1999


     May 3rd 1999…mention this date to any resident of Oklahoma and you are sure to get a look of sorrow and fear. Tornadoes in Oklahoma in the spring are not an unusual thing. Natives of Oklahoma have become accustomed to the annual ritual of tornado sirens, and most understand that they live in the heart of tornado alley. The Bridge Creek-Moore Oklahoma tornado was not a typical tornado. This tornado was a monster of epic proportions. This beast packing winds of 300+ miles an hour caused destruction and death no one will ever forget. 


     Tornadoes can appear suddenly or be tracked as funnels by a storm chaser for miles before they touch down or dissipate. The EF scale (Enhanced Fujita Scale) for judging the intensity of the storm ranges from 0 to 5 with wind speeds of 110 miles per hour up to more than 300mph. An EF 0 will damage trees, small structures (sheds, playground equipment), and take shingles off the roof. An EF5 is capable of leveling buildings to the foundation and damaging large skyscrapers. The Bridge Creek-Moore Oklahoma tornado of May 3, 1999 was an EF 5.





       The deadly tornado started its path near the community of Amber, Oklahoma and headed northeast, parallel to Interstate 44, just after another tornado had passed over the airport in Chickasha. First reported by storm chasing teams as having touched down in Grady County at 6:23 p.m., the tornado intensified almost immediately from an EF 4 to an EF 5 system. The tornado then crossed the Canadian River, passing into far southern Oklahoma City. As it passed over Bridge Creek, around 6:54 pm the D.O.W. (Doppler On Wheels) headed by storm chaser Josh Wurman detected winds of 301 mph inside the tornado at a height of 32m. These winds, however, occurred above the ground, and winds at the surface may not have been quite this intense. It wavered between EF 2 and EF 5 as it entered Cleveland County, but it hit its highest speed again as it ran through and destroyed the city of Moore. The cell dissipated at 7:49 pm, outside of Midwest City, after crossing Oklahoma County and battering the southern part of Oklahoma City. 


    The death toll from this monster tornado would likely have been higher if people had not had advance warning. Three local television stations in Oklahoma City: KFOR-TV (channel 4), KOCO-TV (channel 5) and KWTV (channel 9) provided life saving coverage of the Oklahoma tornado outbreak. Tornado warnings were issued well in advance of the tornado's arrival. The three stations' chief meteorologists Mike Morgan, Rick Mitchell and Gary England received commendations from then-governor Frank Keating for their coverage of the outbreak. 




    This tornado covered a 38 mile area in around an hour and twenty-five minutes. It destroyed several towns on the outskirts of Oklahoma City killing 38 people, injuring close to 600 people, doing a billion dollars worth of damage, and destroying or damaging over 8000 homes. A “tornado emergency” was issued for the Bridge Creek/Moore tornado, marking the first time this level of warning had ever been used. A “tornado emergency” is used when a violent tornado is about to impact a densely-populated area. 


   As disastrous as the Bridge Creek/Moore tornado was, it was only part of a much larger system that spawned over 140 tornadoes. These tornadoes were spread over a five state area and covered a good chunk of tornado alley. Stroud Oklahoma was hit by an F-3 tornado that destroyed the Tanger Outlet Mall, the local hospital and the Sigma Trucking terminal. While there were no fatalities in Stroud, the economic impact of the tornado was devastating. Mulhall Oklahoma was also hit by an F-4 tornado toppling the city's water tower and destroying most of the town. The Mulhall tornado was a wedge tornado, at times exceeding a width of one mile. Some storm chasers believe it may have been as violent, or more violent than the F-5 Moore/Bridge Creek tornado. ABC affiliate KTUL-TV in Tulsa located on Lookout Mountain was nearly hit by one of the last tornadoes of the outbreak. The outbreak claimed the lives of 6 people in Haysville and Wichita Kansas, 1 person in Texas and 4 people in Tennessee. 



      May 3rd was filled with death and destruction, but one reported miracle took place at Westmoore High School, outside of Eastlake Estates. There was a ceremony going on when the Bridge Creek/Moore tornado hit, but the students had enough time to find shelter in the building. Incredibly, while the structure itself was severely damaged and cars were destroyed, not a single person in the building was even injured.Unfortunately, some individuals tried to take refuge from the tornadoes under highway overpass and this decision ended up costing 3 people their lives. The Bridge Creek-Moore Oklahoma tornado hit 2 overpasses along I-44, while another struck an overpass north of Oklahoma City. It is a common misconception is that it that it is safe to hide under an overpass during a tornado, but this is not true. Never take refuge under an overpass. The safer alternative is to lie in the lowest piece of land available such as a ditch.  

     On May 4th, eleven counties were declared disasters. The Red Cross housed 1600 people in ten shelters that were opened overnight. FEMA sent several post-disaster teams, the US Dept. of Defense sent the 249th Engineering Battalion, and the Corps of Engineers were placed on standby. By the 6th, there were phone banks and donation centers functioning, and the Dept. of Health and Human Services had medical teams in attendance. Feeding stations were set up. Search and rescue continued through the 7th trying to find the thirteen who were still missing. By the 9th FEMA had approved about $180,000 for housing assistance. On May 12th seven teams were sent to aid in debris removal and people began to search for any belongings that survived the dreadful Bridge Creek-Moore Oklahoma Tornado of May 3, 1999. An outreach program was set up to help the victims deal with the stress of the trauma. People who were rebuilding were encouraged to add storm shelters on their property. 


     The Bridge Creek/Moore Oklahoma tornado will never be forgotten. Those who survived this tragic day are thankful and will tell the story with a heavy heart for those that did not survive.

Wednesday, November 2, 2011

Nebraska June 20th, 2011 Outbreak


Wow...what an adventure this was.
I had been monitoring the potential for a tornado outbreak in South Central NE/Northern Kansas for a few days, and made the decision early on that I was going to chase this storm. All of the important numbers were pointing towards a major out break on June 20th. As I have done in the past, I decided I would ask Mrs Twister if she wanted to make a vacation out of it. In her sarcastic voice "Sure Mr Twister". So, on June 17th we gathered all of the necessary equipment for a vacation and a storm chase. Having to gather all of the required road trip items for a four and a eleven year is never easy. We managed to get everything done and headed out the door at 7am June 18th. 
The first stop on our adventure was Mt Rushmore. I had not been since I was a kid, and Mrs Twister and the kids had never been. We arrived to great weather, and a wonderful environment for viewing one of our countries amazing feats. If you have not been, or you have not been for awhile, some major improvements have been made to the area surrounding Mt Rushmore. The addition of a museum, a trail that allows you to walk to the base of the mountain and a walkway with every state's flag hung high. After a fun day, we headed into Rapid City for dinner, and some rest. I needed to look at the new outlook for the chase target. To my excitement the outlook had become even more favorable for tornadoes, and my target would be Grand Island Nebraska. My original target had been farther to the North and East, so I had some ground to cover. 
After a nights sleep, some swimming for the kids and few more local attractions, we were on the road to Sioux Falls South Dakota. We arrived in Sioux Falls late the evening of June 19th. I again reviewed the data for moisture, shear, front position, CAPE values and some other items, and was happy to see that my target was still Grand Island. 
As always, it was like Christmas Eve for a ten year old, and I could not sleep very well. I woke up bright and early on June 20th, kissed the family goodbye, and I was out the door. I tend to avoid bringing family members on chases that pose great danger. 
Heading south towards Omaha and Lincoln, I encountered major flooding. This particular area had been under flash flood warnings for the majority of the summer, and now I was seeing this first hand. The flooding caused some detours for my route, but I eventually made my way to Grand Island at 12pm CDT. 
I pulled into Grand Island, as I have many times, grabbed some lunch and reviewed the numbers again. To my surprise the SPC had issued a PDS "Particularly Dangerous Situation" for South Central Nebraska. This is the grand daddy of watch's, and typically will be issued when their is the potential for a significant tornado outbreak with the possibility for large and long track tornadoes. My feelings were mixed. This could be very dangerous, and I am a little nervous. This could be an epic outbreak, and I am excited. This could be deadly, and maybe I can save some lives. I called Mrs. Twister to give her the latest information, and I took my dog Bella out for a bathroom break. As I return to the car, warnings were starting to light up on a few storms in Northern Kansas. Shoot was I to far to the North East. 
I watched these initial storms in North Kansas, and they began to spin tornadoes. I reviewed the maps, and made the decision that I was to far East, and as the front crossed into Nebraska it would initiate storms near Kearney Nebraska. I collected my thoughts, and started heading West. The reports were arriving fast and furious, large tornado on the ground in Kansas. I was happy, and I figured I had snuffed out a near miss. Towers began to form along I-80, and I knew that it would not be much longer. 
I arrived in Kearney, and almost immediately storms initiated...went severe....and went tornado warned. I noticed that a group of chasers were even further West than I was, and they were reporting a tornado on the ground in Nebraska. I maintained my position, and followed my strategy of tracking the cells furthest to the South of initiation. 
Storms began to billow up directly over my head, and the structure of these cell's was incredible. These cells immediately began to drop pea to marble size hail.  Hail was bombing my Impalla, and knew I needed to get out of the hail core and move towards any developing wall clouds. As I viewed radar, I notice that just East of Kearney the current cell was forming a hook echo. I made my way to a county road that would allow access to the East and Southern portion of the storm. As I emerged from the hail core, the wall cloud nearly dropped on my hood. The clouds were dancing and spinning, and the color was an ominous green. This storm was moving North East, and it was moving fast. 
I made my way to a clearing where I had clear visual of the wall cloud, and almost on cue the storm begins to lower and a funnel emerges. My excitement is boiling over, and I grab my camcorder. As I turn back to the funnel, it reaches the ground and I have an official tornado. I call the siting into the local authorities and position myself on the dirt road to get the best. shot. A beautiful picturesque, white, elephant trunk tornado quickly develops. I capture the beast, as it arches from the base of the super cell, and lumbers for a few hundred yards. As quickly as it grew into a text book cone, it begins to evolve into a rope and dissipates before my eyes. 
Wow, that was a great start. I have a feeling that this cell is not done producing, so I start to head North in pursuit. I travel no more than half a mile, and directly in front of me is a serpent like rope tornado skimming across the dirt road. As it snakes back and forth, I grab my camcorder, and I am able to capture my 2nd tornado. Two tornadoes in a matter of ten minutes. Sadly to say, this would be the end of my tornado captures for the day. I would pursue the same storm for fifty miles, and it did produce some amazing photos, but no more tornadoes. 
What a day, I was as happy as a clam. Turns out I did miss two very nice tornadoes near Grand Island. Yes, my original position. Storm chasing is such an inexact science, and one miscalculation can cause your day to become a bust. Luckily, this event produced many tornadoes, and I was able to document two of them. 
Overjoyed with my chase day, I made my way back to the hotel in Sioux Falls. I had no choice but to follow the front as it marched North East towards Iowa and South Dakota. On my way back, I encountered major hail, lightning, wind, flooding, and a speeding ticket. Crap, another risk of storm chasing. 
PLEASE GO TO www.mrtwisterfanpage.com to see pictures, maps, video and NOAA full report on this outbreak. 

Mr Twister