Storm that just went thru Denver about collapsed my gutters from the torrential rainfall. Finally got some rain after a long stretch of near misses! #cowx
James Hammett 🌪️
@jameshammett.com
I chase storms across the High Plains in a Subaru 🌩️ Engineer in Denver, Colorado 🌩️ Builder of software and electronics like TurretCam 🌩️ Creator of the #1 most viewed tornado video jameshammett.com
A Black Witch moth a.k.a. Mariposa de la Muerte -- it's the size of a hand! They're not native here in Colorado but occasionally migrate up on winds from Mexico. This one is beating the heat by resting on shaded bricks outside my door
Cool news from CDOT: They're launching weather balloons (with CSU grad students) to collect added data for tactical insight (road treatments, equipment deployment, etc.) Data will get shared with NWS as well. Presumably, this'll help with years-long balloon launch holes. mailchi.mp/state/cdot-a...
CDOT and CSU launch weather balloon to strengthen year-round road operations
mailchi.mp
A video of a large sprite jellyfish over shading the Nebraska sky last night from my IPhone.
Another strong tornado on 6-11-2026, this time near Dwight, IL
Not bad for having not even made the decision to chase until 6:30 pm! This tornado was north of DeMotte, IN around 8:00 pm on 11 June (0000 UTC on 12 June).
The second significant tornado we documented yesterday impacted Streator, IL. We were going through town when it roped out so I did the best I could to capture it. On the last shot I was busy taking pictures of the utility pole damage and didn't notice the new tornado lurking in the background.
Tornado striking a farm east of Dwight, #ILwx last night. And this was like...the 4th craziest tornado of the event.
This is probably tied for top chase of all time with 4/26/2024. And supremely local in areas I grew up in. Really hoping impacts were minimal.
Almost 10 minutes with 100mph gusts and about 30 minutes of severe gusts (more than 58mph).
Salina be rocking, hat tip @pmarshwx.com
Great day chasing the Palmer Divide today! Followed a supercell for several hours to the east. It tried hard to produce a tornado a few times, but couldn’t quite get it done. Fun chase nonetheless! #cowx
First time storm chasing in South Dakota way back in June 2005 I got to experience the Northern Plains meaning business with its linear storm systems this time of year. Just an enormous amount of energy released as it steamrolls a large area
The WoFS has shown run-to-run consistency that a potential significant to destructive wind event is likely later this PM across the northern Plains. Judging by the numerous simulated storms in the 18-member ensemble (gray paintballs), this has intense bow echo written all over it.
Walked out of a graduation ceremony and that south Denver cell was overhead. Had a several minute walk back to my car - no umbrella or jacket so I just ran for it. Lots of CGs crashing and pretty sure I heard a few pings of hail hitting nearby cars😬
Really?
I accidentally drove through the damage path on my first out-of-state chase a week later. Can't overstate how much the Hallam tornado haunted my early years chasing.
#weatherpicofday OTD 22 years ago, May 22, 2004, Jim Bishop, Mark McGowan, and I documented a megawedge tornado near Wilber, Nebraska. At the time it was the widest tornado in history at 2.5 miles in diameter. #newx
A more recent EF3 tornado was also an oddball: The 2015 Berthoud tornado began approximately 3 miles south of Berthoud, then tracked to the west-northwest! www.stormdig.com/index.php?op... #WxSky
The Windsor,CO tor was an oddball tornado for a couple of reasons. 1. It developed during the AM hours, which is unusual for Colorado. 2. The tor motion was to the NNW! Honorable mentions: The tor was 1 mile wide, a legitimate wedge tor and it’s one of only a handful of EF3 tornadoes for Colorado.
timelapse of the supercell in its esrly stages when it was near Deer Trail yesterday afternoon #COwx
I'm always concerned about my antenna wires breaking the Faraday cage and routing a lightning strike into the cabin. OTUS guy is routing that possibility straight to his skull #WxSky
now the real test is whether those automated alerts are actually timely and have correct info, since that’s often the failure point. But for pre-event messaging this is outstanding!
Tons of heavy, wet snow in the trees in south Denver pushing branches to the ground. Just had to shake the snow out of my small trees to save them #WxSky
The Supreme Court has affirmed the President's authority to dismiss any and all members of congressional designated boards - even if the enabling legislation prohibits it. The only exception is members of the Federal Reserve Board of Governors. 6 members of the Supreme Court are to blame for this.
U.S. President Donald Trump has fired all 24 members of the National Science Board, the body that oversees the National Science Foundation. https://scim.ag/4cxQWhl
Happy Earth Day! 🌎 To celebrate, consider streaming PBS NOVA's new "Rain Bombs" episode! You might recognize some familiar atmospheric scientists ;) I feel very fortunate to have played a small part in this episode. One of my most memorable career experiences so far!
NOVA | Rain Bombs | Season 53 | Episode 5
A deadly—and growing—global weather phenomenon mystifies scientists.
pbs.org
My jaw dropped when Mike H first posted footage of this Dupree cyclic multi-vortex merry-go-round tornado-fest in 2010. South Dakota + stationary supercell = perfection. youtu.be/LitatyGimpU?... #WxSky
8 tornadoes I saw from stationary supercell, Dupree SD June 16, 2010.
YouTube video by Mike's Storm Clips
youtu.be
How it feels doing literally any task right now.
Dose of reality
Former NASA climate scientist, now Senior Scientist at Project Drawdown, Dr. Kate Marvel, has a fantastic piece in the New York Times today. This is a must-read if you care about science, the planet, and the future. www.nytimes.com/2026/04/08/o...
"To the cloud" - done well - provides a rare opportunity to onboard modern infrastructure and practices that can greatly improve velocity and resilience. Hoping this will help operational infrastructure capacity especially during big weather events.
We are modernizing operations and moving to the cloud! This will improve our mission to provide weather, water and climate data, forecasts, warnings, and impact-based decision support services for the protection of life and property. Learn More: www.noaa.gov/news-release...