10a-2p (M-F) on The Weather Channel. M.S./Ph.D. Atmospheric Dynamics, UW-Madison. Post-doc Tropical Cyclones. Drummer 🥁, swammer. Goin’ Back to Nassau Hall 🎶.
Joined October 2012
- Tweets 14,987
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- Followers 73,184
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4,331 Photos and videos
Greg Postel retweeted
Monster HP supercell near Ralston, Oklahoma with @JustonStrmRider on June 13, 2026. #okwx
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😂😂
Jun 12
One of the most shocking moments was when The Fastest serve ever in Wimbledon ended up as a point lost.
Mpetshi Perricard hit The Fastest Wimbledon serve ever (153.0 mph) but still lost the point 🤯
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Greg Postel retweeted
The damaging wind swath from Wednesday, June 10 has been preliminarily confirmed as a derecho.
The wind swath had a track length over 400 miles with a footprint just under 100,000 square miles. The strongest known gust was measured at over 94 mph.
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Greg Postel retweeted
Jun 12
Quick edit showing some of the intense moments today while documenting 8 tornadoes in northern Illinois into Indiana. Massive shoutout to @skydrama for nailing the forecast in the warm sector. Hands down the craziest tornado outbreak I've ever documented.
Full video will be released in the near future on the @thestormreel YouTube page.
#ilwx #inwx #tornado #outbreak
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Jun 11
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Jun 11
Kansas Gone WILD Again! Insane Supercell Drops Quick Tornado - June 10 youtu.be/dD4ASs_ozTQ?si=DESP… via @YouTube
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Greg Postel retweeted
Timelapse sequence of last night's tornado near Oxbow, Saskatchewan #skstorm
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Greg Postel retweeted
Jun 10
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Jun 9
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Jun 9
Timelapse of yesterday's supercell outside of Genoa! Sorry if it's a little choppy since I made the mistake of taking the video as a regular 27 min video instead of a timelapse -- I had to go into iMovie to speed up the video
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Greg Postel retweeted
Heck of a storm yesterday in Eastern CO! Bell shaped structures and cold ice blue cores. Tis the season.
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Jun 9
😅 Hard no. But Kudos! to the pilots ;)
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Greg Postel retweeted
Jun 9
Wild radar imagery tonight of a supercell near Salina, Kansas getting absorbed into a powerful thunderstorm complex 👀
A possible 113mph wind gust was measured at Salina Regional Airport! #KSwx
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Greg Postel retweeted
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Greg Postel retweeted
Jun 9
Incredible structure tonight in Colorado on the tornado warned storm #cowx
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SECOND-WARMEST SPRING ON RECORD for CONUS! Spring records abound: TX, AZ, NM, CO set heat records while HI was record-wet ☔ and AK had its coldest since 2013. Drought persists across half the country. bit.ly/USClimate202605
ALT Map of the U.S. showing temperature percentiles for spring (March–May) 2026 with warmer areas in gradients of red and cooler areas in gradients of blue.
ALT Map of the U.S. showing precipitation percentiles for spring (March–May) 2026 with wetter areas in gradients of green and drier areas in gradients of brown.
ALT Map of the U.S. showing locations of notable weather and climate events in May 2026 with text describing each event and title at top stating “Notable Weather and Climate Events: May 2026”.
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Greg Postel retweeted
Jun 7
dubs
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Jun 6
🪝❤️
Jun 6
Yesterday's supercell in eastern Nebraska was something out of a dream
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Jun 6
Incredibly gracious and humble. Bravo!
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Jun 6
Best all-around swimmer on the planet.
During the second day of the 2026 Longhorn Elite Invite in Austin, Summer McIntosh won the women's 400 IM in 4:27.31. This is the fastest time in the world this year and also the eighth-fastest performance of all time. Now she owns nine of the 10 fastest performances ever.
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Jun 5
It's very sheary and SALy out there in the tropical Atlantic. Short, non-precipitating cumuli nearly everywhere.
Saharan Air Layers (SALs) adversely affect TC genesis for 3 main reasons:
1) Enhanced Stability
2) Strong Shear
3) Low RH
It's ... not the dust
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