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Posts by Chris Legro

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The remarkable life of Super Typhoon Sinlaku.

18 hours ago 66 18 2 0

Before and after satellite imagery of the landslide this morning at Nizhny Ubekimakhi in Russia. Note the impounded lake on the east side of the landslide block, which is about 1 km wide. @planet.com @davepetley.bsky.social @glacierhazard.bsky.social

3 days ago 77 29 6 3

I wasn’t so sure, but the second “very” sold me.

4 days ago 1 0 0 0
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Got bored tonight, so I downloaded 3 hours worth of Earthcam replay / archive footage from their Skydeck camera atop of the Willis Tower (Sears Tower) in Chicago and made a time lapse of the fog rolling in off Lake Michigan. Good illustration of how our atmosphere behaves like any other fluid. #ilwx

4 days ago 269 73 9 6
4 days ago 2 0 0 0

I want to get some magnolia myself. I need something to brighten up these gloomy spring days.

5 days ago 1 0 0 0
Video

The remarkable evolution of Super Typhoon Sinlaku.

1 week ago 68 17 4 1
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Video

Weather satellites were able to see the Artemis II launch and re-entry.

Space is cool, satellites are cool. It's all cool!!!

1 week ago 272 78 3 4
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NOAA GOES 18 weather satellite’s Geostationary Lightning Mapper (GLM) instrument detected the atmospheric re-entry of NASA’s Artemis II Orion capsule over the Pacific Ocean between Hawaii and southern California just before 23:56 GMT — too cool! #ArtemisII #NASA #NOAA

1 week ago 78 25 0 0

He really did luck out with the FEMA stuff that it wasn’t that bad of a tropical season, but eventually this kind of capricious behavior will come back to bite us (like breaking the Forest Service before what could be a pretty bad fire season).

1 week ago 5 2 0 0
Preview
two women are talking into microphones in front of a wall that says " in the wo " ALT: two women are talking into microphones in front of a wall that says " in the wo "

Counterpoint

2 weeks ago 1 0 0 0
Captured by the Artemis II crew during their lunar flyby on April 6, 2026, this image shows the Moon fully eclipsing the Sun. From the crew’s perspective, the Moon appears large enough to completely block the Sun, creating nearly 54 minutes of totality and extending the view far beyond what is possible from Earth. The corona forms a glowing halo around the dark lunar disk, revealing details of the Sun’s outer atmosphere typically hidden by its brightness. Also visible are stars, typically too faint to see when imaging the Moon, but with the Moon in darkness stars are readily imaged. This unique vantage point provides both a striking visual and a valuable opportunity for astronauts to document and describe the corona during humanity’s return to deep space. The faint glow of the nearside of the Moon is visible in this image, having been illuminated by light reflected off the Earth. [alt text from NASA]

Captured by the Artemis II crew during their lunar flyby on April 6, 2026, this image shows the Moon fully eclipsing the Sun. From the crew’s perspective, the Moon appears large enough to completely block the Sun, creating nearly 54 minutes of totality and extending the view far beyond what is possible from Earth. The corona forms a glowing halo around the dark lunar disk, revealing details of the Sun’s outer atmosphere typically hidden by its brightness. Also visible are stars, typically too faint to see when imaging the Moon, but with the Moon in darkness stars are readily imaged. This unique vantage point provides both a striking visual and a valuable opportunity for astronauts to document and describe the corona during humanity’s return to deep space. The faint glow of the nearside of the Moon is visible in this image, having been illuminated by light reflected off the Earth. [alt text from NASA]

The #Artemis II astronauts said they needed more superlatives to describe their view of the eclipse, when the Sun was behind the Moon and its near surface was faintly illuminated by Earthshine

2 weeks ago 2874 764 33 57
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FAFO just what if it was all snow…

2 weeks ago 1 0 0 0
The Moon with a crescent of earthshine. The solar corona (extended atmosphere) surrounds the Moon. Outside that, there are stars and lens flares.

NASA/Artemis II/Kevin M. Gill

The Moon with a crescent of earthshine. The solar corona (extended atmosphere) surrounds the Moon. Outside that, there are stars and lens flares. NASA/Artemis II/Kevin M. Gill

Spectacular photo taken by the Artemis II crew yesterday while in the shadow of the Moon! The solar corona, stars, and some earthshine! Amazing!

flic.kr/p/2s6gojg

2 weeks ago 332 64 4 5
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Winter makes way for spring in Central Asia, as the warming temperatures have helped break apart and melt the ice covering Lake Balkhash in Kazakhstan over the last few weeks.

2 weeks ago 14 5 0 0
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Some remarkably steep lapse rates forecast along and ahead of the cold front in western Maine tomorrow afternoon. For a snow sounding, this could be short duration, but intense. Like 1 to 2 inches in less than an hour intense.

2 weeks ago 1 0 0 0

I love to see nerds just nerding out.

2 weeks ago 3 0 0 0

This has been a worldwide test of object permanence.

2 weeks ago 198 41 2 1
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Tag yourself. I'm here.

2 weeks ago 1 0 1 0

Strength aside, it's cool to see the westerly wind burst help induce tropical cyclone formation.

2 weeks ago 1 0 1 0
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A gorgeous low swirls in the Eastern Pacific.

Things that spin are pretty.

2 weeks ago 41 7 0 0
The Orientale basin is the youngest of the large lunar basins. The distinct outer ring is about 590 miles (950 km) from east-to-west.

The Orientale basin is the youngest of the large lunar basins. The distinct outer ring is about 590 miles (950 km) from east-to-west.

Orientale, the multi-ring impact basin that's a focus of Artemis II, is unique as the youngest of the Moon's large impact basins! Orientale's multiple rings are thought to have formed from deformation of the lunar crust and upper mantle in response to impact, generating circumferential ring faults.

2 weeks ago 89 30 3 0
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The Moon.

NASA/Artemis II/Kevin M. Gill

The Moon. NASA/Artemis II/Kevin M. Gill

New shot of the Moon taken only a few hours ago by the Artemis II crew! More of the lunar far side coming into view :-D

flic.kr/p/2s676GN

2 weeks ago 3191 823 50 90
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Meanwhile on Mars, the Curiosity Rover caught a rather large dust devil this week on Sol 4852.

2 weeks ago 149 33 3 4
Figure 3 from Jong et al. (2026, ERL) showing Northeast extreme precipitation frequency difference (2060-2089 minus 2029-2058) for SSP5-8.5 in the warm and cold season and SSP5-3.4OS in the warm and cold season.

Figure 3 from Jong et al. (2026, ERL) showing Northeast extreme precipitation frequency difference (2060-2089 minus 2029-2058) for SSP5-8.5 in the warm and cold season and SSP5-3.4OS in the warm and cold season.

Very excited to share the published form of our new #OpenAccess study: doi.org/10.1088/1748... (led by @bortingjong.bsky.social).

Given significant increases in Northeast U.S. extreme precipitation trends, we then test responses to rapid greenhouse drawdowns using a 25-km resolution climate model.

2 weeks ago 61 22 5 0
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Absolutely breathtaking view of the Artemis II launch.

Wow.

2 weeks ago 966 288 6 23

xkcd.com/2107/

2 weeks ago 36 13 1 0
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This is my favorite climate change chart. Japanese monks, aristocrats, and emperors kept meticulous records of cherry blossom festivals for 1,200 years and accidentally built the world's longest climate dataset.

2 weeks ago 18118 6865 168 254
Video

The Canary Islands enveloped in dust as waves and vortices swirl off of them.

A fascinating, complex view.

3 weeks ago 180 53 4 0

This incredible heat wave 🥵 is rewriting the record books for Colorado’s snowpack. 🏔️

We're currently witnessing a snow drought of historic proportions.🤯 With ~2 weeks of record-smashing temps across the Western US, our mountains are losing what little snow they had—fast. 📉

🧵 1/9 #cowx

3 weeks ago 52 38 5 7