Author Topic: Bismarck Tornado  (Read 576 times)

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Offline 92merc

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Bismarck Tornado
« on: June 28, 2025, 01:24:26 AM »
Just had a tornado form a half mile from my house.  My webcam caught it.
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Offline 92merc

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Re: Bismarck Tornado
« Reply #1 on: June 28, 2025, 01:25:13 AM »
.5 frame per second timelapse of the tornado.
https://www.youtube.com/watch?v=Et_MXmJoQCA

Today's storms.
https://www.youtube.com/watch?v=4r9HkoCJj04
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Offline AWL

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Re: Bismarck Tornado
« Reply #2 on: June 28, 2025, 08:18:55 AM »
Nice catch!


Doug

Offline SoMDWx

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Re: Bismarck Tornado
« Reply #3 on: June 28, 2025, 08:32:34 AM »
That's impressive. Don't see that too often........Good job!  =D> =D>

Offline 92merc

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Re: Bismarck Tornado
« Reply #4 on: June 28, 2025, 09:41:40 AM »
Yeah, a little scary.  First supercell went by.  A couple of Tornado's somewhere in the 8:00 video.  Couldn't see it from here.  After that supercell went by, thought we were safe.

Saw the second one develop.  It was looking like it was going to slip north of me like the previous one.  Then, for some reason, the wife looks out our front window to the far left.  And there is was, bigger than shit.  Grabbed the cats and went to the basement.  Winds didn't really pick up.  Waited for about 3 minutes and nothing.  No rain, no real wind, no hail.  So I took a peak back up through the window.  It was gone.

I didn't think initially my camera caught it.  I was looking about 5 minutes too late.  My neighbor said he saw it on camera, so I backed up 5 minutes.  And there it was.

Had a 53 mph wind gust.  .06 inches of rain.  The derecho storm front that went through last Friday was worse wind/damage wise.
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Offline Weatherstation De Hout

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Re: Bismarck Tornado
« Reply #5 on: June 28, 2025, 10:30:42 AM »
I'm glad you're all okay.
The footage is impressive—thanks for sharing!
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Offline jaltman

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Re: Bismarck Tornado
« Reply #6 on: June 28, 2025, 01:35:24 PM »
Yes, very impressive, glad you are safe.  Thanks for posting it.

Jim

Offline DaleReid

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Re: Bismarck Tornado
« Reply #7 on: June 29, 2025, 12:37:15 PM »
That makes all the work  in setting  up and maintaining a webcam worth it!

As I watch it looks as if there was a tower of some sort in the same direction.  Did it get near that?  Any estimate on the strength of the tornado  yet?

And finally, there were far few big clouds around this thing.  I have never seen one but as they move through where I live they are invariably associated with big storms, wide ranges of clouds and known warnings.

The cloud here is a bit hard to judge but nothing much substantial (from my perspective) that would host enough energy to spawn a tornado.

Were there sirens?  Warnings going off on Wx radio?  Or was this a surprise?


Again,very nice and thank  you for sharing.

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Offline 92merc

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Re: Bismarck Tornado
« Reply #8 on: June 29, 2025, 05:44:20 PM »
I used my webcam picture, plus a neighbor south west of me.  Between the 2, I triangulated the tornado with Google Earth.  From my estimates, it would land about 1.5 miles away.  So further than I was expecting.  But past those electrical towers you are seeing.  It's kind of deceiving because there is a gentle rise looking that direction.  The tornado was actually past that rise.  So I wasn't seeing the base, but I didn't know that.  I looked at the tornado all of 2 seconds and went, "yep, time to hit the basement."

I posted on the NWS Bismarck Facebook page asking if they had a location.  They stated they are still determining the path.  So they haven't even given it or estimated EF scale.  I kind of doubt they will be able to because they judge based on destruction.  There were no buildings, only open field in that area.  So no destruction to measure against.  My own judgement says it was EF1 or EF2.  In the grand scheme of things, it was short lived.  But it was good luck because there are subdivisions on either side of where I think it landed.

There were sirens, but I live out of town.  I can hear the last ones at the edge of town just barely.  By the time I heard them, I was already in the basement with the wife and cats.

For me, it was a surprise.  If you watch the longer video, the first super cell had past to the north.  I didn't think the second one was going to have enough strength to spawn a tornado, and appeared to be taking that same path north of me.  That same cell triggered 2 more tornado's east of me after this one.  So it picked up some strength as it approached.
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Offline 92merc

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Re: Bismarck Tornado
« Reply #9 on: June 29, 2025, 05:45:31 PM »
Since that first video I made was a bit long, I made a shorter version too.

https://www.youtube.com/watch?v=LNud3IDQBMA
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Offline DaleReid

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Re: Bismarck Tornado
« Reply #11 on: June 29, 2025, 07:16:44 PM »
Indeed, what a rare opportunity, scary as it is but someday I hope to (safely) see a real one.  I've seen a cold air funnel on 4th of July out on the Chippewa river on a pontoon boat so we would have been screwed it if were a real tornado or waterspout.

I am wondering if the NWS will be able to look at the ground pattern to get some idea of wind speed.  I think Bismarck has a doppler and may be able to get an estimation of the winds around it if it wasn't too close to the radar.

I am curious as to h ow they engineer towers such as electricity transmission and communication towers.

Years ago we were driving to Minneapolis and were going around the NE side where a high spot hosts two or three of the main networks' towers and while a relatively weak, but real, tornado went through very near them (not a direct hit if I recall) the stations were able to stay on the air and the towers stayed up.  As we pulling in minutes afterwards (thinking it was just a severe thunderstorm) to our motel, we heard it was a bit more exciting.  Some damage was visible on the ground.

Keep up updated on all that the NWS releases, since I think there are quite a few people interested in your experience.  Glad you are safe.  Did you have to 'convince' the cats to move rapidly or don't cats seem to mind storms and wind?  Our German Shepherds don't mind wind, but the thunder has both of them on edge or joining  us on the bed unexpectedly if a storm sneaks up on us.

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Offline 92merc

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Re: Bismarck Tornado
« Reply #12 on: June 30, 2025, 09:25:05 AM »
NWS released their location findings and data.  There were actually 2 tornado's.  I didn't catch #1, that was off camera.  Given the times, my camera definitely caught #2.

• Tornado #1: EF-1
◦ 95 mph estimated peak wind
◦ 0.33-mile path length
◦ No injuries
◦ Started at 10:23 p.m. and ended at 10:26 p.m.
◦ Video and numerous photos from social media

Tornado #2: EF-Unknown
◦ Unknown estimated peak wind
◦ 0.46-mile path length
◦ No injuries
◦ Started at 10:29 p.m. and ended at 10:34 p.m.

NWS also showed the estimate path.  Using Google Earth line draw feature, #2 came .8 miles at the closest.  1 mile at the furthest.  #1 was 1.4 miles at closest, 1.8 at the furthest.
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