@recast

Recast is a weather company. Our first product is precise weather modification

recastsystems.com/
Joined March 2013
  • Tweets59
  • Following33
  • Followers1.7K
8Media
In the past 6 months we’ve produced a cheaper, more efficient seeding material, trained a hyper-resolution AI weather model, and operated 100+ cloud seeding flights for the governments of Texas and New Mexico. Recast Systems is coming out of stealth. Here’s some of the research we’ve been working on. (1/n)
84
108
83
1,014
336,216
We open-sourced our GPU port of WRF and named it WOOF (Weather Observations and Operational Forecasting). We want everyone to have access to fast and cheap weather simulations. Run your own simulations at woof.recastsystems.com
Olivia Li
@oliviali_Sep 30
We ported the government’s weather model (WRF) over to GPUs so it runs a magnitude faster and cheaper. Here's a 250m resolution forecast of the fog is SF. sf.recastsystems.com
16
66
16
423
55,854
more replies
WOOF was built so we could run cheaper, near real-time simulations for our operational cloud seeding missions. We realized it could be useful outside of cloud seeding so we packaged WOOF to be shared.
1
11
965
It’s a bitwise exact GPU port of WRF-ARW (drycore 4.6.1) which makes it physically coherent but a magnitude faster and cheaper
1
10
807
Tropical storm Edouard makes landfall in Texas. We’re opening up our radar and storm tracking software to the public so everyone can track Edouard.
2
9
1
38
2,662
Track Edouard at melon.recastsystems.com/?sta…

Melon: live radar and satellite

Free, full-resolution NEXRAD radar, the MRMS mosaic, GOES satellite and NWS warnings, decoded in your browser from NOAA's open data.

melon.recastsystems.com
1
8
789
Recast has developed a natural and biodegradable seeding material. We grow it ourselves. Thanks to the @nytimes for covering some of our progress as we develop a new generation of materials, tools, and use cases for cloud seeding.
2
11
3
111
27,008
extra, extra, read all about it! nytimes.com/2026/08/24/clima…

As the West Dries Up, More Companies Are Promising They Can Make It Rain (Gift Article)

States are spending millions of dollars on cloud-seeding technology, backed by new data on its effectiveness — and driven by desperation for water.

nytimes.com
2
2
18
1,805
If this is research you’d like to work on. We’re hiring at recastsystems.com

Recast Systems

Sensing, modeling, and operational infrastructure for precise weather.

recastsystems.com
Stephen Fay
@dcxStepAug 13
Focusing an image from a laser beam diffraction pattern 1/5
1
43
4,261
Growing the cloud seeding industry requires measurements to prove ROI. We build sensing hardware in-house to see what’s happening inside clouds and to measure exactly how much precipitation we've caused. We use in-line holography to captures images of individual aerosols, water droplets, and ice crystals as they move through a cloud. This lets us directly measure cloud microphysics like how particles interact, how droplets freeze, and how ice crystals grow.
2
2
3
89
7,447
Together, these technologies form a feedback loop. We target optimal clouds, seed them with our new material, and collect data with our hardware to validate real world results against our models, recursively improving our operations. We’re building across biology, software, and hardware. If any of our research is interesting to you, DM, or apply at recastsystems.com.
1
75
5,060
Load more