To really get the AZ's monsoon, who better to appreciate it with than stormchasers? With @stormchasertang.bsky.social etc., I got to feel not just the monsoon's immensity but also its spottiness and reticence. And I took the least impressive photo for my article, by far. @azcentral.com

Storm chasers capture thrill, frustration of erratic Arizona monsoon | Exclusive

This year, super El Niño, reduced weather balloons, dust and climate change add to the challenges of storm chasing in Arizona.

azcentral.com

The cat is officially out of the bag. I promised a consequential first, here it is! On (or around) October 6th, for the first time in its 20+ year history, the SPC Mesoanalysis will be available to the field in real time via NCEP NOMADS. Oh, and it’s in NetCDF, not GRIB.

I'm convinced the ucar archive walked so that chasearchive.com could run Let's give @ameliaurquhart.bsky.social and @stormchasertang.bsky.social another round of applause

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!

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

@chasearchive.bsky.social is approaching at an alarming rate. It will be here soon... very soon.

Did you know that Case archive can see the future! Big time case coming up this Saturday! @cameronjnixon.bsky.social @aidanabwx.skyhighcreators.com @ameliaurquhart.bsky.social @wxkylegillett.bsky.social @stormchasertang.bsky.social @landonwx.bsky.social @strmchsrhunterf.bsky.social

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.

Very sad news. I learned more about severe local convective storms from Chuck Doswell than anyone else. He was a friend and mentor.

A snow day in Oklahoma.

Features of Adulthood xkcd.com/3034

Glaze is slippery. More later #kswx

Four photos I took in the closing days of 2024

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.

@stormchasertang.bsky.social and I found a tram

REEEEEEEE

Mister _Hk_ // Alexis Morille@mrhk.bsky.social · 2y ago

Inviting other artist to draw this amazing lenticular cloud surrounding the crater of the Villarrica volcano !

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.

Damnit what

Marcus Chown@marcuschown.bsky.social · 2y ago

Aurora over volcano in Iceland tinyurl.com/7jqhmcq

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

Alaska is pretty cool

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

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

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

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.

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

rat king 🐀 👑 @mikeisaac.bsky.social · 2y ago

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

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.

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

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.

Photographers be like “my whole life is in shambles but the lighting is incredible outside” #photography #WxSky #WxBlueSky

Kirk Giglio Photo@kirkgigliophoto.bsky.social · 2y ago

14 minute sequence of the best sunset I’ve seen this year from a departing Nor’Easter Beaver Tail #Lighthouse in Jamestown, RI Jan. 14th 2024 #WxSky #WxBlueSky #photography

I think this could be a nice way to find the dendritic growth zone characteristics that winter forecasters look for (depth, omega, and RH) all wrapped up into one number. I can publish the code to calculate this on GFS grids if there's interest.