AARoads Forum

Non-Road Boards => Off-Topic => Weather => Topic started by: ET21 on June 16, 2014, 08:09:27 PM

Title: Twin tornadoes from the same storm
Post by: ET21 on June 16, 2014, 08:09:27 PM
This picture comes out from a chaser in Nebraska. Twin tornadoes under the same parent supercell thunderstorm.  :-o :-o :-o :-o

(https://www.aaroads.com/forum/proxy.php?request=http%3A%2F%2Fres.cloudinary.com%2Fgovtslaves-info%2Fimage%2Fupload%2Fc_scale%2Cw_600%2Fv1402958653%2FScreen_shot_2014-06-16_at_6_40_01_PM_zzfgx6.png&hash=960939debb8a6d3c39ad33d1985df6bd3f0f242a)
Title: Re: Twin tornadoes from the same storm
Post by: Scott5114 on June 16, 2014, 09:28:29 PM
One of the storms during the May 3, 1999 tornado outbreak did something like this.
Title: Re: Twin tornadoes from the same storm
Post by: Jardine on June 16, 2014, 11:04:45 PM
And for a while, both tornadoes were F4 !!!

The Jordan Iowa tornado back in the 70s briefly had 2 tornadoes, and the smaller one was rotating backwards. (for the northern hemisphere) It was absorbed by the larger tornado.

Also the tornado ingested COPIOUS amounts of large hail and blasted it's path of destruction with 300MPH ice shrapnel.  It was an extremely severe tornado.
Title: Re: Twin tornadoes from the same storm
Post by: Brian556 on June 16, 2014, 11:33:50 PM
This is almost unbelievable. It's hard to imagine how two large tornadoes could exist that close to each other without interference from the other.
Title: Re: Twin tornadoes from the same storm
Post by: Zeffy on June 16, 2014, 11:55:49 PM
At least 16 are critically injured, and 1 person is dead from this Tornado outbreak. Sad. Some pictures are available at this article, http://www.nbcnews.com/news/weather/twin-tornadoes-pummel-northeast-nebraska-killing-one-n132586 . According to the article, it "was over in two minutes", but the damage caused is absolutely jaw-dropping for just 2 minutes.
Title: Re: Twin tornadoes from the same storm
Post by: hbelkins on June 17, 2014, 10:22:45 AM
I've seen photos from similar past events with two tornadoes on the ground.
Title: Re: Twin tornadoes from the same storm
Post by: froggie on June 17, 2014, 10:35:43 AM
Rare, but not unheard of in the meteorological community.  Somewhat more common is when a storm cell drops a 2nd tornado while the 1st tornado is weakening.  However, twin tornadoes from the same storm cell maintaining strength like this has been documented (and also photographed) in the past.
Title: Re: Twin tornadoes from the same storm
Post by: ET21 on June 17, 2014, 07:53:41 PM
There was even a very brief 3rd tornado. For a few minutes according to Tornado Tracker, there were 3 tornadoes on the ground

https://twitter.com/tornadotrackers/status/478966475072348160/photo/1 (https://twitter.com/tornadotrackers/status/478966475072348160/photo/1)
Title: Re: Twin tornadoes from the same storm
Post by: froggie on June 19, 2014, 11:14:03 AM
The "twin tornadoes" everyone's referring to are #2 and #3 from that supercell.  #1 was the original tornado, but was dying down as #2 was forming....this is actually fairly "common" (relatively speaking), where a tornadic circulation with a supercell will weaken and eventually dissipate as a new circulation forms in its place, and often drops a tornado before the original tornado fully dissipates.
Title: Re: Twin tornadoes from the same storm
Post by: ET21 on June 19, 2014, 11:24:25 AM
Quote from: froggie on June 19, 2014, 11:14:03 AM
The "twin tornadoes" everyone's referring to are #2 and #3 from that supercell.  #1 was the original tornado, but was dying down as #2 was forming....this is actually fairly "common" (relatively speaking), where a tornadic circulation with a supercell will weaken and eventually dissipate as a new circulation forms in its place, and often drops a tornado before the original tornado fully dissipates.

I see what you're saying, the "handoff". #2 and #3 were on the ground together though for a good chunk of time.