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Nick Krasznavolgyi @nickkrasz.bsky.social · 21/07/2026

There appears to have been a significant tornado south of Huberdeau, Quebec a few minutes ago. Based on the track on radar, it potentially hit several homes.

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Connell Miller @connellmiller.ca · 06/10/2025

Excited to announce that my method for estimating wind speeds based on lofted debris in tornadoes was used as contextual evidence for upgrading the Enderlin, ND tornado to an EF5! doi.org/10.1175/MWR-... #NDwx #Enderlin #EF5 #Tornado

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Nick Krasznavolgyi @nickkrasz.bsky.social · 13/07/2025

OTD in 2004: 📍 Roanoke, Illinois A violent F4 tornado tore through the area, with estimated wind speeds between 210-240 mph. It traveled 9.6 miles, reached a peak width of 440 yards, and resulted in 3 injuries, but remarkably, no fatalities.

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Nick Krasznavolgyi @nickkrasz.bsky.social · 20/06/2025

After reviewing several additional photos of the June 5th, 2024 EF1 tornado in Eldersburg, Maryland, I reached out to NWS Sterling to determine whether the images might support an upgrade to EF2. Following a week of analysis, they officially upgraded the tornado to EF2 with 120 mph winds.

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Nick Krasznavolgyi @nickkrasz.bsky.social · 18/06/2025

Wow, looks like there was a tornado in Juneau, Alaska on June 16th. This appears to be a landspout tornado that occurred as a severe thunderstorm passed through the area. Incredible! Video from Romeo_Glacier in r/alaska on Reddit. Video link in the replies.

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Nick Krasznavolgyi @nickkrasz.bsky.social · 18/06/2025

Tornado ongoing north of Paynesville, Missouri. Crossing into Calhoun County, Illinois now.

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Nick Krasznavolgyi @nickkrasz.bsky.social · 18/06/2025

Strong tornado just occurred east-southeast of Salina, Oklahoma. Debris ball and TDS associated with it.

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Nick Krasznavolgyi @nickkrasz.bsky.social · 18/06/2025

Strong tornado still continues at 8:18 PM CDT (0118z) from COW2 Mobile Radar. Impressive vortex hole!

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Nick Krasznavolgyi @nickkrasz.bsky.social · 18/06/2025

Some impressive afternoon thunderstorms moved through eastern New Port Richey, Florida earlier today. The storms produced strong downbursts and made a few weak attempts at tornadogenesis, but all were disrupted by outflow-dominant conditions.

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Nick Krasznavolgyi @nickkrasz.bsky.social · 17/06/2025

Of course! I’m trying to get more active on other platforms.

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Nick Krasznavolgyi @nickkrasz.bsky.social · 17/06/2025

Yesterday’s highly photogenic, deviant tornado near Dickens, Nebraska has been rated a high-end EF2, with estimated peak winds near 135 mph. Numerous trees near the end of its path were denuded and debarked, resulting in a high-end EF2 rating. Tornado photo courtesy of Lincoln Co. Sheriff's Office.

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Nick Krasznavolgyi @nickkrasz.bsky.social · 31/03/2025

The sunrise few days ago in Daytona Beach, Florida. I was visiting Embry-Riddle to tour the campus and meet the professors, I loved it there!

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Reposted by Nick Krasznavolgyi

Devin Pitts @devinwxchase.bsky.social · 31/03/2025

2 years ago today, I saw the most violent tornadoes I've ever seen near Keota, Iowa during the 3rd largest tornado outbreak on record. #tornado

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Nick Krasznavolgyi @nickkrasz.bsky.social · 31/03/2025

Preliminary intensity guidance for the tornado that struck SE of Columbia, Mississippi (Mar. 31, 2025): The tool indicates low-end EF3 (140 mph), with a possible range of 130-150 mph (EF2/EF3), pending NWS damage surveys. This is an estimation, not an official rating.

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Nick Krasznavolgyi @nickkrasz.bsky.social · 11/02/2025

All tropical cyclone reports for the 2024 Eastern Pacific Hurricane Season are now available: www.nhc.noaa.gov/data/tcr/ind... The final two reports, released yesterday, cover Hurricane John (C3/105 kt) and an Unnamed Tropical Storm (TS/35 kt).

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Nick Krasznavolgyi @nickkrasz.bsky.social · 28/01/2025

If you have any questions, please let me know!

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Nick Krasznavolgyi @nickkrasz.bsky.social · 28/01/2025

Note, I am not attempting to criticize the NWS at all. I simply enjoy analyzing tornado damage surveys in detail and sharing my personal observations and opinions! Also note, the revised EF scale is unreleased and the DIs shown here are still in draft, and could be adjusted in the finalized version.

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Nick Krasznavolgyi @nickkrasz.bsky.social · 28/01/2025

The Rivers Edge Apartments' damage appears overrated. Misapplication of DoDs likely inflated the EF4 rating. Based on observed structural and tree damage, I believe the area’s rating should be EF3 (145 mph) overall. ⤵️

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Nick Krasznavolgyi @nickkrasz.bsky.social · 28/01/2025

Trees: DI-28 (Multiple Trees) with DoD-6 [Greater than 75% of large trees snapped or uprooted; numerous trees may be stubbed, with only stubs of large limbs remaining]. Applying "EXP," this results in a low-end EF3 rating (145 mph). ⤵️

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Nick Krasznavolgyi @nickkrasz.bsky.social · 28/01/2025

With the updated EF scale: Apartments: DI-5 and DoD-7 [Most exterior walls collapsed on top stories with most interior walls remaining and/or almost all the roof structure are removed (>75%)]. With "EXP," this damage is better rated as high-end EF2 (135 mph). ⤵️

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Nick Krasznavolgyi @nickkrasz.bsky.social · 28/01/2025

using upper-bound criteria, leading to an EF4 rating. I suggest using DoD-5 [Trees debarked with only stubs of large branches remaining] with the "EXP" classification. This adjustment would yield a low-end EF3 rating (145 mph) for the tree damage. ⤵️

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Nick Krasznavolgyi @nickkrasz.bsky.social · 28/01/2025

a low-end EF3 rating (140 mph) for the apartment damage. The tornado also flattened a 1,200-ft-wide swath of trees along the Stillwater River. Many were denuded and debarked, but these trees are not particularly strong. NWS classified this area under DI-27 (Hardwood Trees) ⤵️

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Nick Krasznavolgyi @nickkrasz.bsky.social · 28/01/2025

Based on my analysis, neither DoD-5 nor DoD-6 matches the observed damage. Instead, DoD-4 [Uplift or collapse of roof structure, leaving most walls standing] is more appropriate. Considering the apartments were well-constructed, the "EXP" designation applies. This results in— ⤵️

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Nick Krasznavolgyi @nickkrasz.bsky.social · 28/01/2025

of top two stories (EF4/180 mph). ⤵️

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Nick Krasznavolgyi @nickkrasz.bsky.social · 28/01/2025

Most buildings at Rivers Edge Apartments lost their roofs, with some exterior walls on the top stories collapsing. The NWS applied DI-5 (Apartments, Condos, Townhouses) with DoDs 5 and 6: DoD-5: Most top-story walls collapsed (EF3/160 mph) DoD-6: Almost total destruction— ⤵️

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Nick Krasznavolgyi @nickkrasz.bsky.social · 28/01/2025

On May 27, 2019, a low-end EF4 tornado tore through Montgomery County, Ohio, including the Rivers Edge Apartments. However, I believe the damage in this area was overrated based on the misuse of Damage Indicators (DIs) and Degrees of Damage (DoDs). ⤵️

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Nick Krasznavolgyi @nickkrasz.bsky.social · 28/01/2025

🌪 Damage Analysis: Dayton, Ohio EF4 Tornado [Rivers Edge Apartments] (May 27, 2019) 🌪️ ⤵️

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Nick Krasznavolgyi @nickkrasz.bsky.social · 29/11/2024

Happy Thanksgiving, everybody! My plate appears to have been an EF3 (150 mph) DI…

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Nick Krasznavolgyi @nickkrasz.bsky.social · 06/11/2024

If anyone has questions or comments regarding the mentioned tornadoes, or has other suggestions, please let me know.

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Nick Krasznavolgyi @nickkrasz.bsky.social · 06/11/2024

3. Whitman, NE | Jun 25, 2024 This unexpected, but intense tornado completely destroyed a large farmstead. Among the destroyed structures, was a well-constructed MBS (Metal Building System), swept clean from its foundation. Revised EF scale suggests low-end EF4: EF4 (170 mph)

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Nick Krasznavolgyi @nickkrasz.bsky.social · 06/11/2024

2. Hawley, TX | May 2, 2024 This "drill bit" completely destroyed two homes, sweeping debris off their foundations. One of the swept homes was bolted to the foundation, and a vehicle was thrown and severely damaged. Construction wasn't great, but not lower-bound: EF4 (170 mph)

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Nick Krasznavolgyi @nickkrasz.bsky.social · 06/11/2024

1. Winchester, IN | Mar 14, 2024 This intense tornado completely destroyed a well-built Taco Bell and church. The Taco Bell is perfectly acceptable at high-end EF3, but the complete destruction of the well-constructed church suggests EF4 on the revised EF scale: EF4 (170 mph)

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Nick Krasznavolgyi @nickkrasz.bsky.social · 06/11/2024

As of now, the year 2024 has four recorded EF4 tornadoes. Those being: 1. Elkhorn, NE - Modale, IA | 4/26 2. Marietta, OK | 4/27 3. Barnsdall, OK | 5/6 4. Greenfield, IA | 5/21 Though, there are a few more I personally think should've earned a violent rating, here's why. 👇

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Reposted by Nick Krasznavolgyi

Devin Pitts @devinwxchase.bsky.social · 22/10/2024

The McCook, Nebraska EF2 tornado from 5/17/19 for #TornadoTuesday

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Jim Tang @stormchasertang.bsky.social · 21/10/2024

Bluesky, meet the night sky.

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Pecos Hank @pecoshank.bsky.social · 20/10/2024

My man @danielshawau.bsky.social said “G’day, get on Bluesky.” First post, a #bluejet

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Reposted by Nick Krasznavolgyi

Gabe Cox 🌪️ @gabecox.bsky.social · 19/10/2024

As seen on Twisters. Still pinching myself ☺️ 📍 Lockett, TX | 4.23.21

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Nick Krasznavolgyi @nickkrasz.bsky.social · 19/10/2024

Comet Tsuchinshan–ATLAS viewed from Myrtle Beach, South Carolina a few nights ago!

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Reposted by Nick Krasznavolgyi

Weather History @weatherhistory.bsky.social · 19/10/2024

October 19, 2005: Hurricane Wilma peaked as a Category 5 in the western Caribbean Sea. The storm's central pressure bottomed-out at 882 millibars, making it the strongest hurricane on record in the Atlantic Ocean. Wilma took only a day to go from 70 to 175 mph.

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Nick Krasznavolgyi @nickkrasz.bsky.social · 19/10/2024

Radar eye candy near Sitka, Alaska right now!

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Nick Krasznavolgyi @nickkrasz.bsky.social · 17/10/2024

Hey everyone! My name is Nick, I'm a senior high school student who resides in the Tampa, Florida area. I have a particular interest in forensic meteorology, including damage analysis of tornadoes, the EF scale, etc. I'm a big tornado history nerd and radar buff. I do photography as well.

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Bry the Photo Guy 🤙🏾 @pezmanwx.bsky.social · 17/10/2024

Where the streets have no name ☄️

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Reposted by Nick Krasznavolgyi

Giovanni Rizzotti @giorizzottiwx.bsky.social · 17/10/2024

Hi! I’m Giovanni, you can call me Gio though. I am a meteorology student at Virginia Tech, Class of 2026. I am a huge tornado history/damage nerd and love forecasting. I am also a rollercoaster nerd and a diehard fan of the Baltimore Ravens and Baltimore Orioles. Also love NASCAR as well.

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Reposted by Nick Krasznavolgyi

Erik Creighton @ecreightonwx.bsky.social · 17/10/2024

Some storms in some places

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Nick Krasznavolgyi @nickkrasz.bsky.social · 17/10/2024

Good morning everyone! Here are two shots of the October 10th, 2024 auroras to start out my account on BlueSky. Taken in Myrtle Beach, South Carolina! 🌌

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