Brad Barrett
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barrett-weather.bsky.social
Brad Barrett
@barrett-weather.bsky.social
Atmosphere-ocean-cryosphere; Extreme events; Teleconnections; 🌪️🌀❄️🇲🇽🇨🇱🇧🇧🇦🇹

PhD OU; Full Prof Oceanography USNA; Prog Officer AFOSF; CCM; Fulbright scholar; Bilingüe
Reposted by Brad Barrett
HISTORIC DAY in the city of Sydney AUSTRALIA
Record hot December temperature in the Observatory
Maximums:
42.7 Olympic Park
42.6 Airport
42.2 Observatory DECEMBER RECORD TIED
37.7 Harbour
December 19, 2025 at 12:12 PM
A gif that describes this week…
December 18, 2025 at 10:49 PM
Cape Hatteras set a daily record low today of 23F, besting 1978’s 25F
CAPE HATTERAS NC Dec 15
Climate Report:
High: 33
Low: 23
Precip: 0.0"
Snow: Missing
at Mon, 15 Dec 2025 22:45:15 +0000 via IEMbot
Additional Details Here.
December 16, 2025 at 2:44 AM
Reposted by Brad Barrett
Dec and all-time low pressure records are expected Wed between southeast B.C. and southern Sask. The records were set <1970, so NCEP reanalysis percentiles/anomalies will be overblown.

Short period record sites, like Baudette & Park Rapids MN, could see new December low pressure records too.
December 16, 2025 at 12:00 AM
Reposted by Brad Barrett
🚨 New job alert! 🚨

Want to work with me? We're searching for an open-rank, tenure-track faculty position at the University of Arizona in Hydrology & Atmospheric Sciences!

Desired expertise is radar meteorology, broadly defined, with a focus on mesoscale phenomena.

arizona.csod.com/ux/ats/caree...
Assistant, Associate, or Full Professor, Hydrology and Atmospheric Sciences (T/TE)
Research Focus: The successful candidate will be expected to develop and maintain an externally funded and internationally recognized research program...
arizona.csod.com
December 4, 2025 at 11:52 PM
Reposted by Brad Barrett
The Warn-on-Forecast team at CIWRO is expanding! A position is opening for anyone who is interested in improving fire weather warning guidance with WoFS. You’ll get to work and collaborate with some pretty cool folks on the team, including yours truly. More info below, and feel free to share!
December 5, 2025 at 4:51 PM
Reposted by Brad Barrett
What a great voice, with such classic songs to his name.
If you haven't heard Jimmy Cliff before, check out "Many Rivers to Cross". Wonderful lyrics, soulful performance. One of the best songs ever. #JimmyCliff

www.youtube.com/watch?v=fjW5...

www.rollingstone.com/music/music-...
Jimmy Cliff, 'The Harder They Come' Reggae Giant, Dead at 81
Jimmy Cliff, the reggae legend who helped spread the genre’s reach from Jamaica to the world with ‘The Harder They Come,’ has died at the age of 81.
www.rollingstone.com
November 24, 2025 at 5:50 PM
“anomalously high August +
October and anomalously low September activity”

Ding! Ding! Ding! Subseasonal variability!!
Meanwhile, the eastern North Pacific (to 140°W) had an unusually quiet July and August followed by an active September and October in 2025, though that activity wasn't enough to bring ACE to the 1991-2020 average.
November 19, 2025 at 6:31 PM
Reposted by Brad Barrett
These estimates build on a broader literature of current policy estimates that I reviewed in a recent paper in Dialogues on Climate Change earlier this year: journals.sagepub.com...
November 14, 2025 at 6:52 PM
Reposted by Brad Barrett
Monday's high temperatures will be about the same as the normal high temperatures on New Year's Day (lower on the East Coast & Southeast).
November 6, 2025 at 6:49 PM
The low-end severe risk over Oregon is evolving as expected
November 5, 2025 at 11:16 PM
Today’s severe risk in OR and CA is very similar to the setups that we have found to favor tornadoes in Chile 🇨🇱 w/HSLC

doi.org/10.1016/j.at...
doi.org/10.1175/MWR-...
doi.org/10.1175/BAMS...
November 5, 2025 at 6:17 PM
Seems my Facebook feed has been corrupted

What say you @climatologist49.bsky.social ?
November 5, 2025 at 5:17 AM
Reposted by Brad Barrett
The new UNEP report is out with the latest estimates of 2100 warming outcomes under current policies, NDCs, and net-zero targets. Here is how it compares to both the IPCC scenarios and other estimates (CAT and IEA, who will release their own updates soon!).
November 4, 2025 at 6:05 PM
Reposted by Brad Barrett
A damaging hurricane in a warmer world

How would a major hurricane that hit Jamaica in 1903 be different today, in a warmer world?

It would drop more rain. (At least)

climatelabbook.substack.com/p/a-damaging...
November 2, 2025 at 9:21 AM
Reposted by Brad Barrett
Halloween costumes to scare scientists (by @twisteddoodles.bsky.social) 🧪
October 31, 2025 at 1:24 PM
There’s more to the story than the category…
I deeply respect the work that's been invested into exploring our approaches to tracking high-end tropical cyclones, but I can't in good conscience remain silent regarding the Saffir-Simpson hurricane wind scale (SSHWS) and discussion around a so-called category 6. 🧵 [1/5]
October 29, 2025 at 4:34 PM
Reposted by Brad Barrett
Here are all the Category 5 segments of the 45 known Cat 5 Atlantic Basin hurricanes since 1924, with Melissa's 36-hour segment highlighted.
October 29, 2025 at 10:13 AM
Reposted by Brad Barrett
An amazing picture taken by the ESA's Sentinel-2 Satellite, that was directly over the eye of Hurricane Melissa as it was making landfall in Jamaica on Tuesday... #SpectrumNews1 #ncwx #Melissa #ESA
October 29, 2025 at 2:14 PM
Reposted by Brad Barrett
This has probably already been posted here, but Melissa has displayed a classic mesovortex pattern that can be modeled in the simplest 2D atmospheric models ("nondivergent barotropic models"). Here's a comparison of this morning's VIS sat and Kossin and Schubert (2001) experiments.
October 28, 2025 at 4:48 PM
Reposted by Brad Barrett
Update #4: By the metric of observed maximum flight level winds at 700 mb, 10-sec average, preliminary data suggests that #Melissa is now the TOP Atlantic hurricane in the modern era of aircraft reconnaissance (since ~1977).
October 28, 2025 at 3:36 PM
Reposted by Brad Barrett
A 2017 paper reassessed the history of the Advanced Dvorak Technique (ADT) for global storms since 1979. As of 10:30pm ET on October 27, #Melissa is now *unofficially* only behind 2015's Hurricane Patricia (Eastern Pacific) for highest ADT in the past 46 years.

journals.ametsoc.org/view/journal...
October 28, 2025 at 2:38 AM
Reposted by Brad Barrett
Hurricane Melissa tonight as the sun sets.
October 27, 2025 at 1:22 AM
Reposted by Brad Barrett
A special 1800 UTC sounding from Kingston, Jamaica, reveals that the tropopause is above 100 mb. The large temperature difference between the cold tropopause and warm sea surface temperatures is very favorable for intense tropical cyclones. #Melissa
October 26, 2025 at 10:10 PM
While not explicitly mentioned by NHC, an outflow channel is becoming well established to the north of #Melissa, and this mass evacuation aloft will help with RI over the next 48 h
October 25, 2025 at 10:01 PM