Daniel Swain

@weatherwest
7.4K Followers
638 Following
3.1K Posts
Climate scientist at UCLA & NCAR studying extreme events like floods, droughts, and wildfires. For the time being, this Mastodon account will mostly be used to automatically repost my Twitter content--I am not continuously monitoring replies or messages.
Weather West bloghttps://www.weatherwest.com
Twitterhttps://twitter.com/Weather_West
Google Scholarhttps://scholar.google.com/citations?user=O1P_qAQAAAAJ&hl=en
UCLA profilehttps://www.ioes.ucla.edu/person/daniel-swain
On Thursday, Apr 16 at noon PT, I'll have a "lunch hour" livestream to discuss the already prolonged & severe marine heatwave affecting Pacific ocean near California. Also: are upcoming April showers connected to a West Pacific supertyphoon? https://youtube.com/live/SIRF3D4-ccs?feature=share
Severe marine heatwave intensifies; plus, how are April showers connected to a supertyphoon?

YouTube
Glad to see that the Sacramento Bee is advertising a cool new newsroom meteorologist position! Frankly, I think every major regional/national newspaper needs in-house expertise like this. Role requires degree in meteorology/atm science (as it should!) https://www.linkedin.com/jobs/view/4382519859/
McClatchy Media hiring California Meteorologist in Sacramento, CA | LinkedIn

Posted 9:57:50 AM. McClatchy Media is seeking an engaging, creative and reader-focused meteorologist-journalist who…See this and similar jobs on LinkedIn.

Still expecting an usually strong cold frontal passage (by NorCal April standards) later this PM. Expect a period of intense rainfall & embedded thunderstorms with gusty wind at lower elevs (locally severe near SF Bay), plus a burst of heavy & accumulating Sierra snowfall. #CAwx
I've have a short-notice pop-up livestream today at 2:30pm PT to discuss the outbreak of unusually widespread thunderstorms across Northern California this PM, including the potential for a few supercells/severe storms containing hail & isolated tornado. https://www.youtube.com/live/IYuMLzu_6MI
Pop-up livestream to discuss severe thunderstorms in Northern California, including live radar tour!

YouTube
Today was already quite active in NorCal, w/several severe thunderstorms & at least one photogenic supercell. Fri & Sat will be even more unusual, w/widespread t-storms & likely at least a few severe ones. I may have a pop-up livestream, time TBD, on Fri or Sat for a radar tour!
I've excerpted a ~5 minute segment from my recent livestream discussing my deepening concerns regarding on the ongoing (and accelerating) threats not only to weather and climate science, but American science leadership and continuity at large. https://www.youtube.com/watch?v=tiE93b-jT-E
American science is at risk not because of budget cuts, but because of executive interference

YouTube
I couldn't agree more with Kate that it's okay--even necessary--to get mad, stay mad, and channel that anger along any number of constructive avenues in this disconcerting moment. https://grist.org/science/kate-marvel-nasa-departure-human-nature-book
Why this NASA climate scientist wants you to stay angry

“I don’t think we rebuild science without getting mad.”

Grist
Since there's, uh, absolutely nothing else going on in the world right now, you might consider reading this late evening blog update on a potential NorCal thunderstorm outbreak over the next few days and a chaotic Pacific-wide weather pattern this April.👀 https://weatherwest.com/archives/43818
After a historically hot March, an active April weather pattern will bring thunderstorms, cooler temperatures, and likely even some Sierra snow - Weather West

April 7, 2026 - Daniel Swain - Following a ridiculous ridge in March and associated record-shattering warmth, a more transient pattern has established in April Well, I won't belabor the point: March 2026 was a month that will long be remembered for its astonishing warmth across California and the broader West. Snowpack in most regions is now near or below all-time record #

Weather West - California weather and climate perspectives
Previously, ensemble outlooks from Mar showed low but real possibility of a more active/unsettled pattern into Apr. That now appears, fortuitously, to be coming to fruition. While snowpack will not meaningfully recover, beneficial mountain precip will still top up soil moisture.
This initial system will not be a cold one! In fact, some parts of CA and interior West will see some rainfall amid relatively "balmy" temps for early April. Precip w/secondary low into wknd might be colder with some high mountain snow, but in general cold air will remain scarce.