Jim Tang
stormchasertang.bsky.social
Jim Tang
@stormchasertang.bsky.social
Blue sky is caused by Rayleigh scattering
Pinned
Bluesky, meet the night sky.
Reposted by Jim Tang
A large update coming later today! These updates will be available for the 2025 cases for now, with older cases to follow. More historical data at your fingertips!
- Past upper air maps with all traditional levels and SFC from the case.
- Right click to save, no more screenshotting!
June 24, 2025 at 12:19 AM
Reposted by Jim Tang
No big deal just radar/satellite loops on
@chasearchive.bsky.social
that will ultimately go back to the 1990s

Check it out!!
app.chasearchive.com?q=%5BYEAR%5D

@ameliaurquhart.bsky.social and @stormchasertang.bsky.social are the dream team
April 20, 2025 at 7:55 PM
Reposted by Jim Tang
@chasearchive.bsky.social is approaching at an alarming rate. It will be here soon... very soon.
February 11, 2025 at 8:01 PM
Reposted by Jim Tang
February 11, 2025 at 8:13 PM
Reposted by Jim Tang
My crankiest belief is that we are now being sold on solutions to problems which only exist because we've let others convince us they exist. That is what "innovation" seems to be in 2025.

There's a level of introspection that's just not happening these days re: what actually needs to bother us.
January 26, 2025 at 6:38 PM
Reposted by Jim Tang
Very sad news. I learned more about severe local convective storms from Chuck Doswell than anyone else. He was a friend and mentor.
January 18, 2025 at 6:40 PM
A snow day in Oklahoma.
January 10, 2025 at 3:38 AM
Reposted by Jim Tang
Features of Adulthood xkcd.com/3034
January 6, 2025 at 11:14 PM
Glaze is slippery. More later #kswx
January 4, 2025 at 11:41 PM
Four photos I took in the closing days of 2024
January 1, 2025 at 7:43 PM
I have a rough hypothesis that patterns favorable for plentiful California precipitation, Plains tornadoes, and I-95 snowstorms tend to cluster together over multiyear timescales. Occam's Razor says to look at the first EOF of NH 500mb variability: the NAO.
January 1, 2025 at 4:51 PM
Reposted by Jim Tang
@stormchasertang.bsky.social and I found a tram
December 21, 2024 at 10:49 PM
REEEEEEEE
Inviting other artist to draw this amazing lenticular cloud surrounding the crater of the Villarrica volcano !
November 29, 2024 at 11:45 PM
Reposted by Jim Tang
Few people even know about this; when people are asked in surveys how child mortality has changed the majority says it has stagnated or increased.

If you consider that many don't know about humanity's biggest achievement, then it's not surprising that many are so pessimistic about our future.
November 27, 2024 at 6:18 PM
Damnit what
Aurora over volcano in Iceland tinyurl.com/7jqhmcq
November 25, 2024 at 8:52 PM
Reposted by Jim Tang
Want the most sophisticated machine learning prediction of geomagnetic storming on the planet?

SWx TREC’s LiveDst model gives 1- and 6-hour forecasts of the geomagnetic Dst index with quantified uncertainty - a first in the space weather forecasting world!

swx-trec.com/dst/
LiveDst: CU Space Weather Forecast
A real-time machine-learning model to predict the geomagnetic disturbance storm time index (Dst) up to six hours ahead
swx-trec.com
November 25, 2024 at 6:33 PM
Reposted by Jim Tang
Alaska is pretty cool
November 25, 2024 at 4:14 AM
Reposted by Jim Tang
While Bluesky looks like other social apps on the surface, it’s actually quite different. It’s an open network.

I blogged about it here:
Benefits of an open network
emilyliu.me
November 24, 2024 at 11:53 PM
Just learned that the drive from San Fransisco to Seattle is only 12 hours and I regret not having taken that drive when I lived in California
November 24, 2024 at 9:32 PM
I can't tell if this is accurate, and a reflection of the mass migration of the wx community, or just topics people who migrate to bsky tend to enjoy, or some influence of nominative determinism
November 24, 2024 at 9:16 PM
Reposted by Jim Tang
Today’s chart: Weather forecasts have become much more accurate.

In the US a 4-day forecast is now as accurate as a 1-day forecast 30 years ago.
November 21, 2024 at 1:42 AM
Reposted by Jim Tang
so I think their mistake was that they identified (correctly!) that algorithmic timelines are good for Not Very Online People, who are the majority of people online, but Very Online People prefer non-algo TLs and, crucially, they're the ones doing most of the posting, and they bring people with them
pretty amazing to see meta double down on algorithmic timeline for a year with threads, watch Bluesky grow very quickly, and then immediately make some changes to directly emulate Bluesky to cut that growth off

v curious if they squandered their head start
November 21, 2024 at 11:00 PM
Some intense precip gradients across the San Francisco Bay Area. Between San Rafael and Richmond (a 20-min drive across a bridge) the 48hr rain totals go from 7" to 0.7".

Rain shadowed areas near/east of Mt. Diablo and in the Santa Clara Valley have generally received < a tenth of a inch.
November 22, 2024 at 8:51 PM
Reposted by Jim Tang
Hello from the Tornado Archive team, Bluesky! Tornado Archive is a website dedicated to worldwide tornado history, climatology, and data visualization. Check out our data viewer!
Tornado Archive - The Ultimate Tornado Data Viewer!
A comprehensive tornado visualization database!
tornadoarchive.com
November 22, 2024 at 12:58 AM
Reposted by Jim Tang
The westerly wind burst earlier in the month was pretty strong and is worth a further dive into the data/better analysis. Quick glance at Reanalysis daily data in Nov, for the equatorial 850mb zonal wind anomaly at 120°W since 1950, shows it was the strongest since the 1997 and 1998 November events.
November 21, 2024 at 9:14 PM