Agent skill · research science · mvanhorn
pp-nhc
Credible, real-time National Hurricane Center data for AI agents: active storms, parsed advisories Trigger phrases: `is there a hurricane`, `active tropical storms`, `tropical weather outlook`, `hurricane advisory`, `what's in the tropics`, `use nhc`, `run nhc`.
Why this skill is useful
Provides real-time access to authoritative National Hurricane Center data and unique command capabilities that the AI wouldn't generate on its own.
What it needs
Requires nhc-pp-cli installed locally. About 7k tokens when loaded. Last updated 2026-08-06. 1,890 stars on the source repository.
What this skill does
<!-- GENERATED FILE — DO NOT EDIT. This file is a verbatim mirror of library/other/nhc/SKILL.md, regenerated post-merge by tools/generate-skills/. Hand-edits here are silently overwritten on the next regen. Edit the library/ source instead. See the repository agent guide, section "Generated artifacts: registry.json, cli-skills/". --> National Hurricane Center — Printing Press CLI Prerequisites: Install the CLI This skill drives the nhc-pp-cli binary. You must verify the CLI is installed before invoking any command from this skill. If it is missing, install it first: 1. Install via the Printing Press installer. It defaults binaries to $HOME/.local/bin on macOS/Linux and %LOCALAPPDATA%\Programs\PrintingPress\bin on Windows: 2. Verify: nhc-pp-cli --version 3. Ensure the reported install directory is on $PATH for the agent/runtime that will invoke this skill. If the npx install fails before this CLI has a public-library category, install Node or use the category-specific Go fallback after publish. If --version reports "command not found" after install, the runtime cannot see the binary directory on $PATH. Do not proceed with skill commands until verification succeeds. This CLI gives agents the most credible real-time hurricane information straight from the National Hurricane Center and the National Weather Service: active storms (CurrentStorms.json), parsed Public Advisories and Forecast Discussions, the Tropical Weather Outlook with formation odds, and live tropical watches and warnings. It is built text-first and links out to the official GIS for anyone who wants polygons. Deep thanks to the forecasters, hurricane hunters, and support staff at NHC who sacrifice so much for the safety of so many. This is an unofficial tool; in an emergency, follow the official watches, warnings, and evacuation orders from NHC, the NWS, and your local authorities. …
How to use it
Reference it in AdaL, Claude Code, Cursor or any coding agent — nothing to install:
@skills mvanhorn/pp-nhc