A new #BulletinAMS article highlights record-breaking Italian hail, profiles Osservatorio Meteorologico Regionale dell’Agenzia Regionale per la Protezione dell’Ambiente Friuli Venezia Giulia, and discusses hail's impact on Italy's culture, economy, and music.
Read more: https://bit.ly/4qNs1KG
New on AMS Headlines 🗞️: Recent disastrous floods triggered by extreme rainfall highlight the need to scale up early actions.
An article in #BulletinAMS highlights the potential of forecasts and warning thresholds to trigger action by decision-makers: https://bit.ly/4b4FrxB
Now on AMS Headlines 🗞️: Was the fate of Shackleton's 1914–15 South Pole expedition on the Endurance sealed by exceptional Antarctic weather?
Read highlights from a recent article in the #BulletinAMS: https://bit.ly/4psHOxP
Person taking a photo of Vincent van Gogh's painting 'The Starry Night' displayed in the Museum of Modern Art. Photo by Kevin Snow via Unsplash.
AMS in the News 📰
Arguments (in journals including #BulletinAMS) about whether Van Gogh's "Starry Night" evokes turbulent atmospheric flow show the passionate, often messy process of scientific debate.
Read more: https://bit.ly/3YeuvWF
NEXRAD screenshots of a tornado on the ground north of Etowah, Oklahoma on April 19, 2023. NEXRAD – KTLX, National Weather Service. On Wikimedia Commons.
"Making warnings accessible in both Spanish and English isn’t just about inclusivity, it’s about ... supporting timely, life-saving action."
A #BulletinAMS paper details a persistent language gap in awareness and understanding of tornado safety warnings:
https://bit.ly/4916PtQ
November BAMS cover: "Sea smoke" above a lead, or break, in the sea ice in the Chukchi Sea, just west of Utqiaġvik, Alaska, during the Chemistry in the Arctic: Clouds, Halogens, and Aerosols (CHACHA) campaign, in the spring of 2022. The photo is taken looking down at the ice over the right wing of the Wyoming King Air aircraft, which was one of two involved in the campaign that focused on atmospheric chemistry and physics in the Arctic in the context of climate change.
Get to know your colleagues and their research in #BulletinAMS!
In the latest Digital Edition: unveiling the mysteries of #SundownerWinds, studying #thundersnow on Lake Ontario, the effects of open water in the #Arctic, and more!
Read here: http://bit.ly/3XJGA5X
A view of the Shell Oil refinery in Deer Park, Texas, on the Houston Ship Channel. It is said to be the sixth largest refinery in the world. It is now jointly owned by Shell Oil and Pemex, the Mexican state oil company. Photo credit: "Houston Ship Channel - Shell Refinery at Deer Park" by Roger W, CC-BY-SA-2.0 on Wikimedia Commons.
Research has revealed “pinned clouds” over gas-fired Texas power plants. These clouds aren't steam from chimneys: they form when air rises over heat sources near dawn, and can stay in the same place over an hour.
Read more in #BulletinAMS: https://bit.ly/4pKAvlo
The global record 134 °F surface temp, measured in Death Valley in 1913, is "implausible" based on other records from that date, claims a paper in #BulletinAMS. The authors suggest the temperature was recorded at an improper location.
More on the blog: https://bit.ly/3LCKPgS
October BAMS cover: Ernest Shackleton’s ship Endurance looking ghostly with its illuminated lines covered in rime ice against the blackness of the polar night sky in midwinter 1915, stuck fast in Antarctic ice for at least five months and counting. Its fate was sealed by colder-than-usual temperatures in 1914–15 that packed it in the ice, eventually crushing Endurance and sending it to the bottom of the Weddell Sea.
Get to know your colleagues & their research in #BulletinAMS!
In the latest Digital Edition: why Pacific & Atlantic TC track #forecasts differ, measuring #hurricanes from the inside, #weather's role in Shackleton's Antarctic expedition, & more!
Read more: bit.ly/3H3GgtK
Designed for education, adaptable for research—the new Python-based framework, which was featured in a recent #BulletinAMS article, makes climate dynamics more approachable for students and researchers.
Read more about this study led by @miamirosenstiel.bsky.social: bit.ly/47kGGFy
September BAMS cover: A close-up photo of plants in dry soil. Flash droughts often devastate agriculture and ecosystems, and until now their impacts eluded detection and monitoring. A new impact-based approach connects the soil water stress that crops exhibit when plant-available water is rapidly lost to flash droughts to a photosynthesis proxy for their early detection, enabling farmers to more quickly respond.
Get to know your colleagues and their research in #BulletinAMS!
In the latest Digital Edition: a record-setting #lightning megaflash, using uncrewed aerial systems in #tornado research, an impact-based flash #drought detection approach, and more!
🔗: bit.ly/3H3GgtK
August BAMS cover: The Yarlung Zsangbo Grand Canyon in China is an important pathway for transporting water vapor from southern Asia to the Tibetan Plateau, initiating copious convection that is helping to melt vast glaciers, such as Laigu Glacier, seen here in January 2024. A newly installed observation system in the canyon is enabling research on its rainfall events while monitoring geohazards that could impact the Sichuan-Tibet railway in the region.
Get to know your colleagues & their research in #BulletinAMS!
In the latest Digital Edition: looking back at the 50-year legacy of GATE, a new long-term global #precipitation dataset, investigating #rainfall processes within a water vapor highway, & more! http://bit.ly/3H3GgtK
Graphic for Peer Review Week congratulating Steven Cavallo, School of Meteorology, University of Oklahoma with a citation.
Many thanks to AMS Editor's Award recipient Steven Cavallo for detailed, constructive reviews 💫
Learn more: bit.ly/48gR7vJ
#BulletinAMS #MonWeaRev #PeerReviewWeek
Graphic for Peer Review Week congratulating Andrew Molthan, NASA with a citation.
🎉 Congratulations to AMS Editor's Award recipient Andrew Molthan for thorough, excellent, constructive reviews!
Learn more: bit.ly/48gR7vJ
#BulletinAMS #PeerReviewWeek
Graphic for Peer Review Week congratulating Sharanya Majumdar, RSMAS University of Miami with a citation.
Kudos to AMS Editor's Award recipient Sharanya Majumdar for thoughtful, critical, constructive reviews 🙌
Learn more: bit.ly/48gR7vJ
#BulletinAMS #PeerReviewWeek
2024 #BulletinAMS
State of the #Climate assessment
www.ametsoc.org/ams/about-am...
H/T @ametsoc.org
CO2 at
422.8 +/-0.1 parts per million, a 52% increase from the pre-industrial level of ~278 ppm.
Hotter🥵
1.13 to 1.30 degrees F
(0.63 to 0.72 degrees C)
above the 1991-2020 average.
Melting polar ice.
Global temperatures and sea levels reached record highs in 2024 while glaciers lost the most ice of any year on record, according to the State of the Climate report released today by @ametsoc #BulletinAMS. cires.colorado.edu/news/global-...
2024 “first leaf” date anomalies across the United States relative to (a) 2023 and (c) the 2011–20 baseline, estimated using the USA National Phenological Network (USA NPN) extended Spring Index (SI-x) model (
Day of year of spring (green shades) and autumn (orange and yellow) vegetation phenology indicators for (a),(b) Harvard Forest, Massachusetts, derived from PhenoCam (PC), ground observations (GO) of red oak (Quercus rubra), and the USA National Phenology Network (USA NPN) regional-scale means of red oak observations (calculated across the northeastern states of Pennsylvania, New Jersey, New York, Connecticut, Rhode Island, Massachusetts, Vermont, New Hampshire, and Maine, with ±1 std. error shaded)
The 2024 #BulletinAMS State of the Climate Assessment is out today. @usa-npn.bsky.social contributed data & info about how #phenology is changing in the U.S. The timing of plant and animal activity such as leaf-out is a strong indicator of species and ecosystem response to changing conditions.
This figure shows the “global surface temperature difference from average from four different organizations”. The four datasets include: Berkeley, NASA, NOAA, and HadCRUT5, with Celsius temperature depicted on the left-hand side and Fahrenheit on the right-hand side. The background image is a hazy city skyline with a body of water in the foreground. Credit: NOAA NCEI and UK Met Office.
▶️ The 2024 #BulletinAMS State of the Climate Assessment is now available! Earth’s greenhouse gas concentrations were the highest on record and record temperatures were notable across the globe. Learn more: bit.ly/4mk41xk
#StateoftheClimate #StateoftheClimate2024
The background is a photo taken on September 29, 2024, two days after Hurricane Helene; the image shows the receding Swannanoa River along Highway 70 in Asheville, North Carolina. Overlaid text on the photo reads, “State of the Climate in 2024. Special Supplement to the Bulletin of the American Meteorological Society, Vol. 106, No. 8, August 2025”. Photo credit: Deborah J. Misch, former Graphics team member for the BAMS State of the Climate.
▶️ UPDATE: The 2024 #BulletinAMS State of the Climate Assessment is now available! Check out the highlights in our press release: bit.ly/45tFO0g
#StateoftheClimate #StateoftheClimate2024
A bright sun partly obscured by clouds, casting a warm glow over a silhouette of buildings and structures on the horizon. Photo by Amico Biswas via Unsplash.
The main driver of 2021’s Pacific NW heat wave was an extraordinarily strong, persistent high-pressure ridge, concludes a paper in #BulletinAMS by @occri.bsky.social and @larryoneill.bsky.social. Those most affected were older, low-income, living alone, and/or without a/c. bit.ly/3ZX3GHP
Photo of Boulder rock formations with a lush green meadow in the foreground under a partly cloudy sky. Photo credit: Logan Gutierrez via Unsplash.
AMS in the News 📰
"Peak wind gusts in Boulder and possibly other locations along the Front Range don’t pack the same punch they used to," according to research led by @ncar-ucar.bsky.social and published in #BulletinAMS.
Read more from NCAR: bit.ly/45Eb5zm
“Figure 2: Warming stripes for the surface and ocean depths (1960-2024), and for different layers of the atmosphere (1979-2024).” Hawkins et al. (2025), Bulletin of the American Meteorological Society. doi: 10.1175/BAMS-D-24-0212.1. Image license: CC BY 4.0.
A US/UK team led by @edhawkins.org has extended the climate “warming stripes” upward and downward: Illustrating temperature changes across the world, the stripes now also show how surface temps interact with those in the upper atmosphere and oceans.
Read more in #BulletinAMS: bit.ly/4jtctbk
A photo of the solar eclipse by Chris F via pexels.
At solar eclipse totality, flying insects descend. The University of Alabama’s Flexible Array of Radars and Mesonets observed “profound and rapid” changes in the atmosphere & insect behavior during the 2017 U.S. total eclipse, according to a new #BulletinAMS paper.
More: bit.ly/3HhrdN1
Grass silhouettes against a blurred sunset background. Photo credit: Dee Onederer via pexels.
A new indicator can aid early detection of agriculturally impactful flash droughts, notes a new study in #BulletinAMS by Koushan Mohammadi & Guiling Wang. Based on soil water deficit (plant-available water), it could make warnings more relevant to farmers.
More: bit.ly/4jEVjI6
Scenic view of a grassy plain with a few trees under a vast, clear sky, with layered mountains visible in the background. Photo credit: EG Images via pexels.
Are Boulder’s extreme downslope winds changing? A #BulletinAMS study by Gerald Meehl et al. validates observations of a striking reduction in 100+ mph wind gusts measured in Boulder after 1995; this may be due to temperature changes.
Read the study here: bit.ly/3S4XwAM
The T-REX project, featured in #BulletinAMS, helps farmers monitor and sustainably reduce water use in California, with lessons for drier climates around the world. On the blog, we speak with project lead Nico Bambach about how T-REX works: bit.ly/4jIcIjy
Two NOAA Corps pilots and a flight engineer at the controls of NOAA Lockheed WP-3D Orion N42RF during a flight into Hurricane Ian on September 27, 2022. Photo credit: Nick Underwood/NOAA.
A flight into Hurricane Hugo (1989) takes the prize for “bumpiest ever" for NOAA’s WP-3D Hurricane Hunter aircraft missions, according to Josh Wadler & colleagues, who developed a novel “bumpiness index” to quantify 3-D turbulence.
Read the paper, in #BulletinAMS: bit.ly/3EFKzdC
A large, bright sun hovering above the horizon, casting a warm orange and red glow over the landscape, which features silhouette of transmission tower. Photo credit: George Becker via pexels.
A new study in #BulletinAMS found (based on a limited survey) that most respondents' understanding of heat-related terms such as "heat index" does not match National Weather Service definitions.
Read the paper by Micki Olson and Jeannette Sutton: bit.ly/4jIItbM
Image of NASA’s Aura satellite. Photo credit: NASA.
Loss of the aging ACE-FTS and MLS satellite instruments will create a “data desert” around stratospheric composition, suggests a paper by @rosssalawitch.bsky.social et al in #BulletinAMS. Observation gaps may hinder understanding of climate change.
Read more: bit.ly/41JORtl
