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Show HN: Prelay – Weather-based work planning for outdoor contractors

2•MPSimmons•1h ago
A couple of years ago, I left aerospace (SpaceX then Varda) to found a weather data company called Local Weather News Network (LWNN).

Today, we're launching our first commercial offering, targeted at outdoor contractors who need to know the weather and site conditions before they go. What most site managers do for landscaping and roofing is just to check their phone's weather app for the various locations they need to dispatch crews, and try to figure out if any jobs should be cancelled or postponed. One owner told me he wakes up at 4am every day, because if he lets them know after 6am, he has to pay them even if they can't work.

Prelay monitors the entire upcoming schedule of sites and determine suitability of 62 activities across 12 trades. We're using ensemble models for weather, and a custom ground-wetness model for soil conditions. Users can also configure weather-triggered notifications so they reschedule work as early as possible.

As of today, Prelay is available in the US, and people can check it out at https://prelay.lwnn.news - I'm super interested in hearing from anyone who works in weather-sensitive businesses or has built similar software in this (or another) niche.

One question we've gone back and forth on is where the line should be drawn between providing raw weather data and recommending concrete actions (something like, 'there's a 35% chance of rain' vs 'you should consider postponing this job'). I'm curious what HN thinks of that question, and what you'd suggest.

I Built a $5 Apple Vision Pro [video]

https://www.youtube.com/watch?v=XtNmiTohUcs
1•Audiophilip•57s ago•0 comments

Writing seen in PHerc. 306B, for the first time in 2000 years

https://scrollprize.substack.com/p/writing-seen-in-pherc-306b-for-the
1•benbreen•2m ago•0 comments

Model and reason on processes through (Scryer) Prolog, directly in the browser

https://github.com/Christopher22/bpmn_meets_prolog
1•triska•2m ago•0 comments

Personal Digital Sovereignty

https://blog.senko.net/personal-digital-sovereignty
1•taubek•3m ago•0 comments

Softly Now

https://www.marginalia.nu/log/a_140_soft_focus/
1•Curiositry•5m ago•0 comments

Ask HN: Is anyone going to use AI only to file their taxes?

1•johsole•5m ago•1 comments

Voyager 1 Is About to Reach 1 Light-Day from Earth

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2•fortran77•7m ago•0 comments

Frustrated Ranchers Want People to Quit 'Rescuing' Their Working Guardian Dogs

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1•rdmuser•7m ago•0 comments

Show HN: Never forget what size you are in that brand again

https://sizewise.franzonlabs.se
1•sirphuzz•7m ago•0 comments

Looksmaxxing and the Quantification of Culture

https://www.ssense.com/en-ca/editorial/culture/looksmaxxing-quantification-culture
1•crescit_eundo•7m ago•0 comments

A former volunteer is attempting to sue Skyblivion and we need your help [video]

https://www.youtube.com/watch?v=cbECoFxtaI4
1•wronglebowski•8m ago•0 comments

Anthropic's growth slowed and costs jumped in the third quarter

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2•ersinesen•9m ago•1 comments

My Me-ware (so far)

https://peter.laceybordeaux.com/blog/posts/me-ware/
2•Powdering7082•15m ago•0 comments

Reading Anthropic's S-1

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4•gmays•16m ago•0 comments

The Experience of Maxing Out One's Cognitive Horsepower (2025)

https://www.justinmath.com/the-experience-of-maxing-out-cognitive-horsepower/
3•ex-aws-dude•17m ago•0 comments

From Cloud-First to AI-First: Productivity-Maxxing or Token-Maxxing?

https://www.dewanahmed.com/cloud-first-ai-first/
1•mooreds•18m ago•0 comments

Crew from NASA's simulated Mars mission emerges after 378 days in isolation

https://www.reuters.com/science/crew-nasas-simulated-mars-mission-emerges-after-378-days-isolatio...
2•Betelbuddy•19m ago•0 comments

Dogmas Begin and How You Can End Them

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1•fagnerbrack•20m ago•0 comments

An outsider's perspective on Scion and Mononoke

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Entire's Trail vs. the Pull Request

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1•gosen•22m ago•1 comments

Egoless Mathematics in the AI Era

https://terrytao.wordpress.com/2026/11/02/egoless-mathematics-in-the-ai-era/
13•smilelamp•26m ago•0 comments

Project Schachett – Reviving a controversial old German card game

https://schachett.blogspot.com/2026/06/project-schachett-reviving-old-german.html
1•measurablefunc•27m ago•0 comments

New cyberattack on supermarket fridges sweeps across Europe

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4•Betelbuddy•28m ago•1 comments

Reactions: Princeton is buying us ChatGPT subscriptions

https://www.dailyprincetonian.com/article/2026/10/princeton-opinion-reactions-free-chatgpt-subscr...
1•pier25•28m ago•1 comments

Ellf · Your virtual NLP engineer for agentic development

https://ellf.ai/
2•rbanffy•29m ago•0 comments

Show HN: Mago, an open source AI video studio, runs locally with Comfy

https://github.com/MagoStudio/MagoStudio
1•AlvaroLaTo•31m ago•0 comments

Show HN: One Roof – mission control for many coding agents. You stay in charge

https://github.com/gaurav8936/oneroof
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Gion – the fastest Git client for agents

https://baz-scm.github.io/gion/
1•kornimrod•31m ago•0 comments

Show HN: HackerGames – HackerTube, but for Games mentioned on HN

https://architrixs.github.io/HackerGames/
1•Architrixs•31m ago•0 comments

Show HN: A 14M-param world model of 2D Minecraft you can play on your phone

https://maharishiva.github.io/tinywmcraft/
2•maharishiva•32m ago•0 comments