Steve Bowen
@stevebowen.bsky.social
Work: Chief Science Officer @GallagherRe
Alumnus: Notre Dame (MSc: Business Analytics). Florida State (BS: Meteorology).
Healthy Obsessions: Weather & Climate Nerdery. Metallica. Notre Dame. Chicago Sports (Blackhawks, Cubs, Bears, Bulls).
Views: Mine
Alumnus: Notre Dame (MSc: Business Analytics). Florida State (BS: Meteorology).
Healthy Obsessions: Weather & Climate Nerdery. Metallica. Notre Dame. Chicago Sports (Blackhawks, Cubs, Bears, Bulls).
Views: Mine
Year-to-date economic losses from a very active year of tropical cyclones and floods in #Vietnam are approaching USD3.5 billion. Per the Vietnamese government, this puts 2025 just behind 2024 as the costliest on a nominal basis in the last two decades.
November 25, 2025 at 5:04 PM
Year-to-date economic losses from a very active year of tropical cyclones and floods in #Vietnam are approaching USD3.5 billion. Per the Vietnamese government, this puts 2025 just behind 2024 as the costliest on a nominal basis in the last two decades.
ICYMI: Significant hailstorms have impacted southeast Queensland in #Australia; notably around the greater Brisbane metro region. Hailstones up to 14 cm (5.5 in) were recorded.
Insured losses minimally expected into the hundreds of millions (USD).
insurancecouncil.com.au/resource/ins...
Insured losses minimally expected into the hundreds of millions (USD).
insurancecouncil.com.au/resource/ins...
Insurance Catastrophe declared for SEQ hailstorms
The Insurance Council of Australia has declared an Insurance Catastrophe for the strong winds and damaging hail that impacted South East Queensland between Sunday 23 November to Monday 24 November.
insurancecouncil.com.au
November 25, 2025 at 4:25 PM
ICYMI: Significant hailstorms have impacted southeast Queensland in #Australia; notably around the greater Brisbane metro region. Hailstones up to 14 cm (5.5 in) were recorded.
Insured losses minimally expected into the hundreds of millions (USD).
insurancecouncil.com.au/resource/ins...
Insured losses minimally expected into the hundreds of millions (USD).
insurancecouncil.com.au/resource/ins...
Catastrophic flooding continues in central #Vietnam following a stretch of relentless rain. Some areas have seen 1.9 meters (74.8 inches) of rain in the past week.
- 102+ people dead / missing
- 200,000+ homes damaged
- 492,000+ acres of crops damaged
Initial damage cost listed at ~USD500 million.
- 102+ people dead / missing
- 200,000+ homes damaged
- 492,000+ acres of crops damaged
Initial damage cost listed at ~USD500 million.
November 23, 2025 at 6:02 PM
Catastrophic flooding continues in central #Vietnam following a stretch of relentless rain. Some areas have seen 1.9 meters (74.8 inches) of rain in the past week.
- 102+ people dead / missing
- 200,000+ homes damaged
- 492,000+ acres of crops damaged
Initial damage cost listed at ~USD500 million.
- 102+ people dead / missing
- 200,000+ homes damaged
- 492,000+ acres of crops damaged
Initial damage cost listed at ~USD500 million.
I've probably seen 100 games here in Notre Dame Stadium. This was a new level of first half domination: 49-0.
FYI: Jeremiyah Love is the most explosive offensive player I've seen for ND since Rocket Ismail. Electric every time the ball is in his hands.
FYI: Jeremiyah Love is the most explosive offensive player I've seen for ND since Rocket Ismail. Electric every time the ball is in his hands.
November 22, 2025 at 10:10 PM
I've probably seen 100 games here in Notre Dame Stadium. This was a new level of first half domination: 49-0.
FYI: Jeremiyah Love is the most explosive offensive player I've seen for ND since Rocket Ismail. Electric every time the ball is in his hands.
FYI: Jeremiyah Love is the most explosive offensive player I've seen for ND since Rocket Ismail. Electric every time the ball is in his hands.
While we need to see more urgent progress on climate / sustainability issues (especially GHG emissions), we have to learn to celebrate the wins -- even the minor ones. We've made healthy progress in the last decade.
Much more work to be done. No time for complacency.
Much more work to be done. No time for complacency.
November 21, 2025 at 7:35 PM
While we need to see more urgent progress on climate / sustainability issues (especially GHG emissions), we have to learn to celebrate the wins -- even the minor ones. We've made healthy progress in the last decade.
Much more work to be done. No time for complacency.
Much more work to be done. No time for complacency.
One of the best parts of having young kids is that they tell EVERYONE that it's your birthday. Then they yell out your age and end with "that's so crazy that he's so old."
Glad the school bus driver and I could share that awkward moment at 7:18AM this morning.
Glad the school bus driver and I could share that awkward moment at 7:18AM this morning.
November 13, 2025 at 1:44 PM
One of the best parts of having young kids is that they tell EVERYONE that it's your birthday. Then they yell out your age and end with "that's so crazy that he's so old."
Glad the school bus driver and I could share that awkward moment at 7:18AM this morning.
Glad the school bus driver and I could share that awkward moment at 7:18AM this morning.
✓ Increasingly expensive disaster costs
✓ Higher reinsurance pricing (insurance for insurers)
✓ Insurers reassess their portfolio exposure / raise premiums
✓ Replacement costs rise
✓ More people move to high-risk areas
✓ Home values decline
...and more.
The link? Growing risks from climate change.
✓ Higher reinsurance pricing (insurance for insurers)
✓ Insurers reassess their portfolio exposure / raise premiums
✓ Replacement costs rise
✓ More people move to high-risk areas
✓ Home values decline
...and more.
The link? Growing risks from climate change.
Home insurance is getting less affordable, and less available, as insurers raise prices and pull back from areas with extreme weather. That's forcing families across the country to make tough choices. n.pr/47QGKwH
It's harder to get home insurance. That's changing communities across the U.S.
Home insurance is getting less affordable, and less available, as insurers raise prices and pull back from areas with extreme weather. That's forcing families across the country to make tough choices.
n.pr
November 12, 2025 at 2:21 PM
✓ Increasingly expensive disaster costs
✓ Higher reinsurance pricing (insurance for insurers)
✓ Insurers reassess their portfolio exposure / raise premiums
✓ Replacement costs rise
✓ More people move to high-risk areas
✓ Home values decline
...and more.
The link? Growing risks from climate change.
✓ Higher reinsurance pricing (insurance for insurers)
✓ Insurers reassess their portfolio exposure / raise premiums
✓ Replacement costs rise
✓ More people move to high-risk areas
✓ Home values decline
...and more.
The link? Growing risks from climate change.
Absolutely magical and stunning view of the Northern Lights from my front lawn tonight in the northern suburbs of Chicago.
Science. The best.
Science. The best.
November 12, 2025 at 2:27 AM
Absolutely magical and stunning view of the Northern Lights from my front lawn tonight in the northern suburbs of Chicago.
Science. The best.
Science. The best.
If you live in a 100-year flood zone, here are the probabilities of experiencing a flood during the life of your hypothetical mortgage:
15 years: 14%
30 years: 26%
50 years: 40%
Plus, more years of mandated flood insurance premiums -- though you should buy it regardless of the lender requirement!
15 years: 14%
30 years: 26%
50 years: 40%
Plus, more years of mandated flood insurance premiums -- though you should buy it regardless of the lender requirement!
November 11, 2025 at 7:39 PM
If you live in a 100-year flood zone, here are the probabilities of experiencing a flood during the life of your hypothetical mortgage:
15 years: 14%
30 years: 26%
50 years: 40%
Plus, more years of mandated flood insurance premiums -- though you should buy it regardless of the lender requirement!
15 years: 14%
30 years: 26%
50 years: 40%
Plus, more years of mandated flood insurance premiums -- though you should buy it regardless of the lender requirement!
November 9/10: Rather exceptional snowfall forecast here in the greater Chicago metro region, including northwest Indiana. Very dangerous driving conditions given snowfall rates could be 3+ inches per hour (plus 30 mph winds). Locations just miles apart could see dramatically different snow totals.
November 10, 2025 at 1:18 AM
November 9/10: Rather exceptional snowfall forecast here in the greater Chicago metro region, including northwest Indiana. Very dangerous driving conditions given snowfall rates could be 3+ inches per hour (plus 30 mph winds). Locations just miles apart could see dramatically different snow totals.
November 6: #Fung-wong is very quickly organizing as it heads towards the Philippines. This could be a very powerful typhoon as it heads through the archipelago.
Parts of the Philippines are still in early stages of recovery following catastrophic flooding from #Kalmaegi.
Parts of the Philippines are still in early stages of recovery following catastrophic flooding from #Kalmaegi.
November 6, 2025 at 11:17 PM
November 6: #Fung-wong is very quickly organizing as it heads towards the Philippines. This could be a very powerful typhoon as it heads through the archipelago.
Parts of the Philippines are still in early stages of recovery following catastrophic flooding from #Kalmaegi.
Parts of the Philippines are still in early stages of recovery following catastrophic flooding from #Kalmaegi.
Many parts of the world have successfully translated investment into renewable energy as the dominant provider of electricity for its citizens. This is the way.
Australia has so much electricity from solar power that it is going to start offering free electricity to everyone for at least three hours during the day as the wholesale price of power goes negative
electrek.co/2025/11/04/a...
electrek.co/2025/11/04/a...
Australia has so much solar that it's offering everyone free electricity
Australia's extensive solar power penetration makes so much energy that the government wants to offer free electricity at peak hours.
electrek.co
November 6, 2025 at 6:12 PM
Many parts of the world have successfully translated investment into renewable energy as the dominant provider of electricity for its citizens. This is the way.
I'll keep repeating this truth. There are few industries that understand the complex realities of how climate change is affecting the world today more than insurance.
Physical risk. Non-physical risk. Liability risk. Reputational risk. Etc.
We see it.
www.insurancebusinessmag.com/uk/news/brea...
Physical risk. Non-physical risk. Liability risk. Reputational risk. Etc.
We see it.
www.insurancebusinessmag.com/uk/news/brea...
Climate slips down the agenda, but insurers warn it's the "risk that amplifies all others"
Polycrisis pressures have pushed this exposure down the corporate priority list
www.insurancebusinessmag.com
November 6, 2025 at 2:02 PM
I'll keep repeating this truth. There are few industries that understand the complex realities of how climate change is affecting the world today more than insurance.
Physical risk. Non-physical risk. Liability risk. Reputational risk. Etc.
We see it.
www.insurancebusinessmag.com/uk/news/brea...
Physical risk. Non-physical risk. Liability risk. Reputational risk. Etc.
We see it.
www.insurancebusinessmag.com/uk/news/brea...
Typhoon Kalmaegi headed to Vietnam after causing catastrophic flash flooding in the Philippines. Parts of Vietnam have dealt with exceptional flooding from storms since September. Those flood damage costs are estimated beyond $2.04 billion.
Yet another storm (Fung-wong) on deck for the Philippines.
Yet another storm (Fung-wong) on deck for the Philippines.
November 5, 2025 at 6:34 PM
Typhoon Kalmaegi headed to Vietnam after causing catastrophic flash flooding in the Philippines. Parts of Vietnam have dealt with exceptional flooding from storms since September. Those flood damage costs are estimated beyond $2.04 billion.
Yet another storm (Fung-wong) on deck for the Philippines.
Yet another storm (Fung-wong) on deck for the Philippines.
REMINDER: An "insured loss" is simply the portion of economic loss costs from an event that is covered by insurance. It is not an added loss value on top of an economic loss.
Seeing multiple news agencies interchangeably refer to an insured loss estimate as a total economic loss. Incorrect.
Seeing multiple news agencies interchangeably refer to an insured loss estimate as a total economic loss. Incorrect.
November 3, 2025 at 8:40 PM
REMINDER: An "insured loss" is simply the portion of economic loss costs from an event that is covered by insurance. It is not an added loss value on top of an economic loss.
Seeing multiple news agencies interchangeably refer to an insured loss estimate as a total economic loss. Incorrect.
Seeing multiple news agencies interchangeably refer to an insured loss estimate as a total economic loss. Incorrect.
That was the Bearsiest Bears game in the history of Bearsing that I've ever seen as a Bears fan.
a man wearing a helmet and scarf stands in front of a crowd of people
ALT: a man wearing a helmet and scarf stands in front of a crowd of people
media.tenor.com
November 2, 2025 at 9:37 PM
That was the Bearsiest Bears game in the history of Bearsing that I've ever seen as a Bears fan.
Important article on the incredibly complex and nearly impossible tightrope walk for the California insurance market with the wildfire peril.
One correction is needed. Traditional catastrophe models now allowed to be used for pricing are NOT climate change models.
www.nytimes.com/2025/11/01/u...
One correction is needed. Traditional catastrophe models now allowed to be used for pricing are NOT climate change models.
www.nytimes.com/2025/11/01/u...
November 2, 2025 at 3:14 PM
Important article on the incredibly complex and nearly impossible tightrope walk for the California insurance market with the wildfire peril.
One correction is needed. Traditional catastrophe models now allowed to be used for pricing are NOT climate change models.
www.nytimes.com/2025/11/01/u...
One correction is needed. Traditional catastrophe models now allowed to be used for pricing are NOT climate change models.
www.nytimes.com/2025/11/01/u...
Sports. The creator of irrational highs and lows. Can't get enough!
November 2, 2025 at 4:23 AM
Sports. The creator of irrational highs and lows. Can't get enough!
Every Halloween, this is apparently the scariest thing in the neighborhood. Without fail, at least one person stops and asks if this 'thing' is invading people's privacy.
The look of bewilderment when it's revealed that this is a weather station never ceases to be hilarious. 😂
The look of bewilderment when it's revealed that this is a weather station never ceases to be hilarious. 😂
October 31, 2025 at 10:48 PM
Every Halloween, this is apparently the scariest thing in the neighborhood. Without fail, at least one person stops and asks if this 'thing' is invading people's privacy.
The look of bewilderment when it's revealed that this is a weather station never ceases to be hilarious. 😂
The look of bewilderment when it's revealed that this is a weather station never ceases to be hilarious. 😂
#Melissa: Jamaica will receive an insurance payment of $70.8mn from its policy through the Caribbean Catastrophe Risk Insurance Facility (CCRIF); a record for the program. Combined with the expected full $150mn payout from Jamaica's catastrophe bond, this will be important liquidity.
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October 31, 2025 at 7:21 PM
#Melissa: Jamaica will receive an insurance payment of $70.8mn from its policy through the Caribbean Catastrophe Risk Insurance Facility (CCRIF); a record for the program. Combined with the expected full $150mn payout from Jamaica's catastrophe bond, this will be important liquidity.
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ICYMI: Staggering rainfall in Vietnam in the past week. Bach Ma mountain near Hue City recorded a one-day rainfall of 1,740 mm (68.50 in). This is unofficially the second highest 24-hour rainfall ever recorded globally.
Record: 1,825 mm / 71.85 in La Réunion; January 7-8, 1966
(1/2)
Record: 1,825 mm / 71.85 in La Réunion; January 7-8, 1966
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October 31, 2025 at 6:04 PM
ICYMI: Staggering rainfall in Vietnam in the past week. Bach Ma mountain near Hue City recorded a one-day rainfall of 1,740 mm (68.50 in). This is unofficially the second highest 24-hour rainfall ever recorded globally.
Record: 1,825 mm / 71.85 in La Réunion; January 7-8, 1966
(1/2)
Record: 1,825 mm / 71.85 in La Réunion; January 7-8, 1966
(1/2)
Thanks to @afreedma.bsky.social for the inclusion in this piece. An honor to share quotes with some of the biggest titans in tropical cyclone research.
I spent much of Tuesday talking to some of the top hurricane experts in the country about how climate change helped turn Hurricane Melissa into such a beast of a storm. Here's what they told me: www.cnn.com/2025/10/29/c...
Why Hurricane Melissa turned into a supercharged monster | CNN
Hotter-than-average Caribbean water made Hurricane Melissa stronger and wetter. Its part of a trend that scientists link back to climate change.
www.cnn.com
October 29, 2025 at 7:39 PM
Thanks to @afreedma.bsky.social for the inclusion in this piece. An honor to share quotes with some of the biggest titans in tropical cyclone research.
Received a few questions regarding insurance in Jamaica. Roughly 20% of residential properties currently have insurance. However. Of that ~20%, a remarkable 95% of those properties are "underinsured" -- or not insured for the full value of their home. #Melissa
jamaica-gleaner.com/article/news...
jamaica-gleaner.com/article/news...
IAJ sounds alarm as 95% of J’can homes underinsured amid hurricane season
With the 2025 hurricane now under way, the Insurance Association of Jamaica (IAJ) has launched a new public education campaign urging Jamaican property owners, both locally and abroad, to urgently reassess their insurance coverage before disaster...
jamaica-gleaner.com
October 28, 2025 at 10:11 PM
Received a few questions regarding insurance in Jamaica. Roughly 20% of residential properties currently have insurance. However. Of that ~20%, a remarkable 95% of those properties are "underinsured" -- or not insured for the full value of their home. #Melissa
jamaica-gleaner.com/article/news...
jamaica-gleaner.com/article/news...
October 28 12:45pm ET: #Melissa in the process of coming ashore. Very concerned about Montego Bay getting into the eyewall. The whole island right now is taking the worst of what Melissa was going to bring: exceptional winds, blinding heavy rainfall, and extensive coastal storm surge.
October 28, 2025 at 4:49 PM
October 28 12:45pm ET: #Melissa in the process of coming ashore. Very concerned about Montego Bay getting into the eyewall. The whole island right now is taking the worst of what Melissa was going to bring: exceptional winds, blinding heavy rainfall, and extensive coastal storm surge.
#Melissa: It is not hyperbolic to say that parts of western and central Jamaica will be unrecognizable once the storm passes. This is one of the strongest known tropical cyclones to make landfall anywhere in the world.
And.
Yet another example of a strengthening storm up to the point of landfall.
And.
Yet another example of a strengthening storm up to the point of landfall.
October 28, 2025 at 2:22 PM
#Melissa: It is not hyperbolic to say that parts of western and central Jamaica will be unrecognizable once the storm passes. This is one of the strongest known tropical cyclones to make landfall anywhere in the world.
And.
Yet another example of a strengthening storm up to the point of landfall.
And.
Yet another example of a strengthening storm up to the point of landfall.