Weather Catastrophist -Working in the energy/insurance industry for 20 years helping manage weather risk. The opinions expressed are my own & not my employer's.
Joined September 2013
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2,640 Photos and videos
Naming Cloud Farts
This is your yearly reminder that naming a tropical storm is subjective, and we are really good at naming systems that should not be named or would not have been named in the past. #CloudFarts
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Jun 16
There are a hell of a lot of M4GW right now. It's freezing out.
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Andrew Siffert retweeted
Jun 15
Last weekend, I held my annual #Hurricane Season Kickoff Party at the sacred Hurricane House in Bay Saint Louis, Mississippi.
Get this: my weather station had its single greatest one-day rainfall total *ever* on the day of the party! (If that’s not poetic justice, I don’t know what is. 😀) But the biblical rainfall and resultant floods couldn’t keep the crowds away. Almost 200 neighbors, friends, stormchasers, TV personalities, reporters, business leaders, artists, and city and state officials braved the storm to get to the party—and have a blast. It meant a lot to this here chaserdude that folks came from around the nation—by plane, train, and car—so we could all be together for this annual tradition.
As I always say, my Hurricane Party is not a celebration of hurricanes—it’s a celebration of hurricane awareness and preparedness. This really matters to me—because aside from hunting down the biggest, baddest hurricanes around the planet, my life’s mission is encouraging my neighbors in Hurricane Country to be as prepared as I am. The event’s sponsor, @JamesHardie, shares my deep passion for making homes hurricane tough and climate resistant. It’s why I am such a dogged believer in this brand, and why the exterior of Hurricane House is 100% Hardie siding and other products.
At the party I was excited to show off my new TimberTech porch railing—made of an Advanced PVC material that makes the railing at once gorgeous and appropriate to the traditional style of my home and *also* resistant to Coastal Mississippi's wicked bag of tricks: moisture, mold, rot, termites, and impact from flying debris!
I want to give big thanks to James Hardie for their deep and abiding commitment to community resilience—and for making the Hurricane Party possible every year. 👊
Everyone: Be safe—and READY—this hurricane season. 👊
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Florida is unlivable they say! Nope south Florida is alive and well!
Jun 4
Introducing 619 By Nobu, Brickell's Newest Waterfront Residences. Pre-Construction pricing won't last. Secure first-release pricing and a payment plan before public launch. Private details below.
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Andrew Siffert retweeted
Jun 2
Coldest June 2nd Sunrise 'Ever' ~ In Our Life
In A Small Corner Of The Lower 48 🇺🇸
Our Corner
30° At The Icebox of se MA ~ MVY
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Some people might like the benefits of a warning world. M4GW
🚨 A startup secretly launched over 120 sulfur dioxide balloons to cool the planet. The EPA is investigating.
A private startup's rogue attempt to dim the sun by launching sulfur dioxide balloons has triggered a federal investigation, thrusting the controversial world of solar geoengineering into the regulatory spotlight.
The U.S. Environmental Protection Agency (EPA) has formally demanded information from Make Sunsets, a California-based startup that has launched over 120 weather balloons filled with sulfur dioxide to combat global warming. Mimicking the cooling effects of major volcanic eruptions, the company aims to create a reflective shield in the stratosphere to bounce sunlight back into space. Under the banner of 'cooling credits,' Make Sunsets sells these interventions to corporate and individual buyers, sparking major pushback from environmental authorities who are raising alarms over the unregulated release of sulfur dioxide—a regulated air pollutant under the Clean Air Act since 1971.
This commercial venture has ignited a fierce debate over solar geoengineering, with critics warning that deliberately manipulating the Earth's climate could trigger unpredictable weather patterns, disrupt the ozone layer, and distract from critical emissions-reduction goals. Conversely, proponents argue that private innovation can develop planetary-scale cooling technologies much faster than traditional academic pathways. With Mexico already banning Make Sunsets' operations and the EPA now aggressively questioning where the company obtains its materials and conducts its launches, this clash highlights a critical unresolved dilemma: who should decide if, when, and how we alter the atmosphere to cool the planet?
source: U.S. Environmental Protection Agency. (2026). EPA Seeks Information from Make Sunsets.
ALT A startup secretly launched over 120 sulfur dioxide balloons to cool the planet. The EPA is investigating. A private startup's rogue attempt to dim the sun by launching sulfur dioxide balloons has triggered a federal investigation, thrusting the controversial world of solar geoengineering into the regulatory spotlight. The U.S. Environmental Protection Agency (EPA) has formally demanded information from Make Sunsets, a California-based startup that has launched over 120 weather balloons filled with sulfur dioxide to combat global warming. Mimicking the cooling effects of major volcanic eruptions, the company aims to create a reflective shield in the stratosphere to bounce sunlight back into space. Under the banner of 'cooling credits,' Make Sunsets sells these interventions to corporate and individual buyers, sparking major pushback from environmental authorities who are raising alarms over the unregulated release of sulfur dioxide—a regulated air pollutant under the Clean Air act.
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Andrew Siffert retweeted
Jun 1
We cannot say the atmosphere is producing more extreme circulation patterns or blocking events lately.
The dynamic behavior is still largely within the range of natural variability over the past century and longer ~600 years.
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Andrew Siffert retweeted
May 31
May 2026 ends with a very chilly morning across the Northeast and Great Lakes.
30s ands 40s for lows. 📉
In the 1600s such weather would demand "witch hunts"
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May 29
If your biking to work you have just been offset. Thank for trying M4GW
May 29
Here's our video of the explosion at Launch Complex 36. It happened about 9 pm ET (0100 UTC) as Blue Origin was beginning a static fire test of its New Glenn rocket.
Watch live views: youtube.com/watch?v=thfYPsRq…
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May 28
Why have we not unpluged this model yet
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Andrew Siffert retweeted
Canada hasn’t had such a cold start to the year (in relative terms) since the mid-1990s
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Andrew Siffert retweeted
May 23
More Ice On The Birdbaths in New England
Coldest May 23 Sunrise ~ Ever ~ In Our Life Northern Maine
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Andrew Siffert retweeted
May 22
Ice On The Birdbaths This Morning
Coldest May 22nd Sunrise ~ ever ~ In Our Life
portions of eastern North America
our portion
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May 22
This just upsets me so much. We seriously have bigger issues we should be solving for.
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Andrew Siffert retweeted
May 21
Maybe I'm being a bit dense here, but wouldn't the ~3C current policy scenario (CurPol) in the AR6 be the "apples to apples" comparison with current polices in the AR7?
Comparing baseline to current policy is more apples to oranges if we are assessing changes between the reports
May 21
There is an effort underway to compare RCP8.5 with the new CMIP7 HIGH
Don't fall for it, these are an apple and an orange
Here is the proper comparison
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May 22
Doesn't our government have bigger issues to solve. This is just a sign of a very broken system IMO.
May 22
JUST IN: House committee votes 48-1 to advance the “Sunshine Protection Act,” which would make daylight saving time permanent.
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Andrew Siffert retweeted
May 22
Fascinating study from Texas A&M here. There is a link between urbanization and rainfall. Has implications on planning, mitigation, and near-term forecasting.
News article on the paper here: tpr.org/news/2026-05-21/texa…
Analysis of a 23-year record of Texan storms reveals how urban landscapes affect storm rainfall — painting a more complex picture than had been realized
go.nature.com/4wCZLyB
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Andrew Siffert retweeted
May 19
Little windy in the Texas Panhandle last night
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Andrew Siffert retweeted
May 20
❄️📈 With that much snow, it is only appropriate that they reopen this summer. 🙌
ALT A skier is navigating through deep powder snow at Banff Sunshine, Alberta. Text on the image announces that Banff Sunshine has surpassed 10 meters of snowfall for the season.
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