# Active Severe Weather Alerts – U.S. National Weather Service

> Active Severe Weather Alerts – U.S. National Weather Service is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-29).

Returns active severe weather alerts from the U.S. National Weather Service for a given latitude/longitude coordinate.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/pulse-weather-severe-alerts-buyers?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-29
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/active-severe-weather-alerts-u-s-national-weather-service-f72eb5ae
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_2nKM3pf8FyNmJOq8TmhkQ

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability active-severe-weather-alerts-u-s-national-weather-service-f72eb5ae -d '<json body>'
```

Example prompt: Are there any active severe weather alerts right now near Washington DC — latitude 38.9047, longitude -77.0164?

## When to prefer this

Choose this endpoint when you need real-time, official U.S. National Weather Service severe weather alerts for a specific geographic point. It is ideal for safety-critical workflows (field operations, logistics, travel routing) where authoritative government alert data is required. Prefer this over general weather APIs when the use case is specifically about active emergency or severe weather advisories rather than routine forecasts.

## Known failure modes

- Coordinates outside the U.S. will return no data or an error, as the NWS only covers U.S. locations
- Invalid latitude/longitude values (out of range) may return a 400 or empty response
- No active alerts returns an empty alerts array, which may be confused with an error
- NWS API downtime or rate limiting may result in 5xx errors
- Coastal or border-adjacent coordinates may produce inconsistent coverage

## How this service works

Active severe weather alerts for Technology buyers: Active severe weather alerts from the U.S. National Weather Service. U.S. locations only; returns current official forecast periods or active alerts.

## Output

Returns a list of active severe weather alerts from the U.S. National Weather Service for the requested coordinates, including alert type (e.g. tornado warning, severe thunderstorm watch), severity level, affected geographic area, start/end times, and official alert description text. Returns an empty list if no alerts are currently active at the specified location.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "latitude": {
   "type": "number",
   "default": 38.9047
  },
  "longitude": {
   "type": "number",
   "default": -77.0164
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/active-severe-weather-alerts-u-s-national-weather-service-f72eb5ae/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from market.datapackvibe.com](https://www.zero.xyz/host/market.datapackvibe.com/llms.txt)