# NWS Weather Alerts — US Active Warnings (`scrapeworks/nws-weather-alerts`) Actor Get active US weather alerts from the official National Weather Service: tornado, flood, winter storm, heat, and more. Clean JSON with severity, urgency, affected areas, and timing. Filter by state, severity, or event type. - **URL**: https://apify.com/scrapeworks/nws-weather-alerts.md - **Developed by:** [Nicolas van Arkens](https://apify.com/scrapeworks) (community) - **Categories:** News, Other, Open source - **Stats:** 2 total users, 1 monthly users, 100.0% runs succeeded, NaN bookmarks - **User rating**: No ratings yet ## Pricing from $1.00 / 1,000 results This Actor is paid per event. You are not charged for the Apify platform usage, but only a fixed price for specific events. Learn more: https://docs.apify.com/platform/actors/running/actors-in-store#pay-per-event ## What's an Apify Actor? Actors are a software tools running on the Apify platform, for all kinds of web data extraction and automation use cases. In Batch mode, an Actor accepts a well-defined JSON input, performs an action which can take anything from a few seconds to a few hours, and optionally produces a well-defined JSON output, datasets with results, or files in key-value store. In Standby mode, an Actor provides a web server which can be used as a website, API, or an MCP server. Actors are written with capital "A". ## How to integrate an Actor? If asked about integration, you help developers integrate Actors into their projects. You adapt to their stack and deliver integrations that are safe, well-documented, and production-ready. The best way to integrate Actors is as follows. In JavaScript/TypeScript projects, use official [JavaScript/TypeScript client](https://docs.apify.com/api/client/js.md): ```bash npm install apify-client ``` In Python projects, use official [Python client library](https://docs.apify.com/api/client/python.md): ```bash pip install apify-client ``` In shell scripts, use [Apify CLI](https://docs.apify.com/cli/docs.md): ````bash # MacOS / Linux curl -fsSL https://apify.com/install-cli.sh | bash # Windows irm https://apify.com/install-cli.ps1 | iex ```bash In AI frameworks, you might use the [Apify MCP server](https://docs.apify.com/platform/integrations/mcp.md). If your project is in a different language, use the [REST API](https://docs.apify.com/api/v2.md). For usage examples, see the [API](#api) section below. For more details, see Apify documentation as [Markdown index](https://docs.apify.com/llms.txt) and [Markdown full-text](https://docs.apify.com/llms-full.txt). # README ## NWS Weather Alerts — US Active Warnings ⛈️ Get **active US weather alerts** straight from the official **National Weather Service** API as clean, structured JSON — tornado warnings, flash floods, winter storms, heat advisories, hurricanes, and every other alert type. Each record includes severity, urgency, affected areas, timing, and the full headline and safety instructions. Filter by **US state, severity, urgency, or event type**, and schedule it for real-time monitoring and alerting. ### Why use it - 🚨 **All active alerts** — nationwide or filtered to the states you care about - 🎚️ **Severity & urgency** — focus on Extreme/Severe or Immediate alerts only - 🗺️ **Affected areas** — human-readable area descriptions plus SAME/UGC geocodes - 🕐 **Full timing** — effective, onset, expires, and ends timestamps - 📋 **Complete detail** — headline, description, and official safety instructions - 🔁 **Pagination handled** — pulls all matching alerts, not just the first page ### Use cases - **Real-time alerting** — pipe severe-weather alerts into Slack, email, or webhooks - **Emergency management & logistics** — monitor conditions across operating regions - **Journalism** — track breaking weather events as the NWS issues them - **Event & travel planning** — check active warnings for specific states - **Datasets & dashboards** — collect alert data over time for analysis ### Input | Field | Description | |-------|-------------| | **US state/territory** | One or more state codes (e.g. `TX` or `TX,OK,LA`). Empty = nationwide. | | **Severity** | Extreme / Severe / Moderate / Minor / Unknown, or Any. | | **Urgency** | Immediate / Expected / Future / Past / Unknown, or Any. | | **Event type** | Exact NWS event name (e.g. `Tornado Warning`). | | **Maximum alerts** | Cap on results returned. | ### Output ```json { "event": "Tornado Warning", "severity": "Extreme", "urgency": "Immediate", "certainty": "Observed", "headline": "Tornado Warning issued May 28 at 4:15PM CDT until 4:45PM CDT", "areaDescription": "Dallas, TX; Tarrant, TX", "senderName": "NWS Fort Worth TX", "effective": "2026-05-28T16:15:00-05:00", "expires": "2026-05-28T16:45:00-05:00", "instruction": "TAKE COVER NOW! Move to a basement or an interior room.", "response": "Shelter", "sameCodes": ["048113", "048439"] } ```` Export to JSON, CSV, or Excel, or pull via the Apify API. Connect to Slack, Sheets, Zapier, or Make for live alerting. ### Notes - Uses the official public National Weather Service API (api.weather.gov). Independent tool, not affiliated with NWS or NOAA. - Covers the United States and its territories. - For life-safety decisions, always rely on official NWS channels directly — this tool is for data access and automation, not as a sole warning source. # Actor input Schema ## `area` (type: `string`): Filter by US state or territory code, e.g. 'TX'. Multiple allowed, comma-separated (e.g. 'TX,OK,LA'). Leave empty for all active alerts nationwide. ## `severity` (type: `string`): Filter by alert severity. Leave as 'Any' for all. ## `urgency` (type: `string`): Filter by alert urgency. Leave as 'Any' for all. ## `event` (type: `string`): Filter by exact NWS event name, e.g. 'Tornado Warning', 'Flood Watch', 'Winter Storm Warning'. Leave empty for all event types. ## `maxItems` (type: `integer`): Maximum number of alerts to return. ## Actor input object example ```json { "severity": "", "urgency": "", "maxItems": 500 } ``` # API You can run this Actor programmatically using our API. Below are code examples in JavaScript, Python, and CLI, as well as the OpenAPI specification and MCP server setup. ## JavaScript example ```javascript import { ApifyClient } from 'apify-client'; // Initialize the ApifyClient with your Apify API token // Replace the '' with your token const client = new ApifyClient({ token: '', }); // Prepare Actor input const input = {}; // Run the Actor and wait for it to finish const run = await client.actor("scrapeworks/nws-weather-alerts").call(input); // Fetch and print Actor results from the run's dataset (if any) console.log('Results from dataset'); console.log(`💾 Check your data here: https://console.apify.com/storage/datasets/${run.defaultDatasetId}`); const { items } = await client.dataset(run.defaultDatasetId).listItems(); items.forEach((item) => { console.dir(item); }); // 📚 Want to learn more 📖? Go to → https://docs.apify.com/api/client/js/docs ``` ## Python example ```python from apify_client import ApifyClient # Initialize the ApifyClient with your Apify API token # Replace '' with your token. client = ApifyClient("") # Prepare the Actor input run_input = {} # Run the Actor and wait for it to finish run = client.actor("scrapeworks/nws-weather-alerts").call(run_input=run_input) # Fetch and print Actor results from the run's dataset (if there are any) print("💾 Check your data here: https://console.apify.com/storage/datasets/" + run["defaultDatasetId"]) for item in client.dataset(run["defaultDatasetId"]).iterate_items(): print(item) # 📚 Want to learn more 📖? Go to → https://docs.apify.com/api/client/python/docs/quick-start ``` ## CLI example ```bash echo '{}' | apify call scrapeworks/nws-weather-alerts --silent --output-dataset ``` ## MCP server setup ```json { "mcpServers": { "apify": { "command": "npx", "args": [ "mcp-remote", "https://mcp.apify.com/?tools=scrapeworks/nws-weather-alerts", "--header", "Authorization: Bearer " ] } } } ``` ## OpenAPI specification ```json { "openapi": "3.0.1", "info": { "title": "NWS Weather Alerts — US Active Warnings", "description": "Get active US weather alerts from the official National Weather Service: tornado, flood, winter storm, heat, and more. Clean JSON with severity, urgency, affected areas, and timing. Filter by state, severity, or event type.", "version": "0.1", "x-build-id": "eq0zKOMqssa1GAnVp" }, "servers": [ { "url": "https://api.apify.com/v2" } ], "paths": { "/acts/scrapeworks~nws-weather-alerts/run-sync-get-dataset-items": { "post": { "operationId": "run-sync-get-dataset-items-scrapeworks-nws-weather-alerts", "x-openai-isConsequential": false, "summary": "Executes an Actor, waits for its completion, and returns Actor's dataset items in response.", "tags": [ "Run Actor" ], "requestBody": { "required": true, "content": { "application/json": { "schema": { "$ref": "#/components/schemas/inputSchema" } } } }, "parameters": [ { "name": "token", "in": "query", "required": true, "schema": { "type": "string" }, "description": "Enter your Apify token here" } ], "responses": { "200": { "description": "OK" } } } }, "/acts/scrapeworks~nws-weather-alerts/runs": { "post": { "operationId": "runs-sync-scrapeworks-nws-weather-alerts", "x-openai-isConsequential": false, "summary": "Executes an Actor and returns information about the initiated run in response.", "tags": [ "Run Actor" ], "requestBody": { "required": true, "content": { "application/json": { "schema": { "$ref": "#/components/schemas/inputSchema" } } } }, "parameters": [ { "name": "token", "in": "query", "required": true, "schema": { "type": "string" }, "description": "Enter your Apify token here" } ], "responses": { "200": { "description": "OK", "content": { "application/json": { "schema": { "$ref": "#/components/schemas/runsResponseSchema" } } } } } } }, "/acts/scrapeworks~nws-weather-alerts/run-sync": { "post": { "operationId": "run-sync-scrapeworks-nws-weather-alerts", "x-openai-isConsequential": false, "summary": "Executes an Actor, waits for completion, and returns the OUTPUT from Key-value store in response.", "tags": [ "Run Actor" ], "requestBody": { "required": true, "content": { "application/json": { "schema": { "$ref": "#/components/schemas/inputSchema" } } } }, "parameters": [ { "name": "token", "in": "query", "required": true, "schema": { "type": "string" }, "description": "Enter your Apify token here" } ], "responses": { "200": { "description": "OK" } } } } }, "components": { "schemas": { "inputSchema": { "type": "object", "properties": { "area": { "title": "US state/territory", "type": "string", "description": "Filter by US state or territory code, e.g. 'TX'. Multiple allowed, comma-separated (e.g. 'TX,OK,LA'). Leave empty for all active alerts nationwide." }, "severity": { "title": "Severity", "enum": [ "", "Extreme", "Severe", "Moderate", "Minor", "Unknown" ], "type": "string", "description": "Filter by alert severity. Leave as 'Any' for all.", "default": "" }, "urgency": { "title": "Urgency", "enum": [ "", "Immediate", "Expected", "Future", "Past", "Unknown" ], "type": "string", "description": "Filter by alert urgency. Leave as 'Any' for all.", "default": "" }, "event": { "title": "Event type", "type": "string", "description": "Filter by exact NWS event name, e.g. 'Tornado Warning', 'Flood Watch', 'Winter Storm Warning'. Leave empty for all event types." }, "maxItems": { "title": "Maximum alerts", "minimum": 1, "maximum": 10000, "type": "integer", "description": "Maximum number of alerts to return.", "default": 500 } } }, "runsResponseSchema": { "type": "object", "properties": { "data": { "type": "object", "properties": { "id": { "type": "string" }, "actId": { "type": "string" }, "userId": { "type": "string" }, "startedAt": { "type": "string", "format": "date-time", "example": "2025-01-08T00:00:00.000Z" }, "finishedAt": { "type": "string", "format": "date-time", "example": "2025-01-08T00:00:00.000Z" }, "status": { "type": "string", "example": "READY" }, "meta": { "type": "object", "properties": { "origin": { "type": "string", "example": "API" }, "userAgent": { "type": "string" } } }, "stats": { "type": "object", "properties": { "inputBodyLen": { "type": "integer", "example": 2000 }, "rebootCount": { "type": "integer", "example": 0 }, "restartCount": { "type": "integer", "example": 0 }, "resurrectCount": { "type": "integer", "example": 0 }, "computeUnits": { "type": "integer", "example": 0 } } }, "options": { "type": "object", "properties": { "build": { "type": "string", "example": "latest" }, "timeoutSecs": { "type": "integer", "example": 300 }, "memoryMbytes": { "type": "integer", "example": 1024 }, "diskMbytes": { "type": "integer", "example": 2048 } } }, "buildId": { "type": "string" }, "defaultKeyValueStoreId": { "type": "string" }, "defaultDatasetId": { "type": "string" }, "defaultRequestQueueId": { "type": "string" }, "buildNumber": { "type": "string", "example": "1.0.0" }, "containerUrl": { "type": "string" }, "usage": { "type": "object", "properties": { "ACTOR_COMPUTE_UNITS": { "type": "integer", "example": 0 }, "DATASET_READS": { "type": "integer", "example": 0 }, "DATASET_WRITES": { "type": "integer", "example": 0 }, "KEY_VALUE_STORE_READS": { "type": "integer", "example": 0 }, "KEY_VALUE_STORE_WRITES": { "type": "integer", "example": 1 }, "KEY_VALUE_STORE_LISTS": { "type": "integer", "example": 0 }, "REQUEST_QUEUE_READS": { "type": "integer", "example": 0 }, "REQUEST_QUEUE_WRITES": { "type": "integer", "example": 0 }, "DATA_TRANSFER_INTERNAL_GBYTES": { "type": "integer", "example": 0 }, "DATA_TRANSFER_EXTERNAL_GBYTES": { "type": "integer", "example": 0 }, "PROXY_RESIDENTIAL_TRANSFER_GBYTES": { "type": "integer", "example": 0 }, "PROXY_SERPS": { "type": "integer", "example": 0 } } }, "usageTotalUsd": { "type": "number", "example": 0.00005 }, "usageUsd": { "type": "object", "properties": { "ACTOR_COMPUTE_UNITS": { "type": "integer", "example": 0 }, "DATASET_READS": { "type": "integer", "example": 0 }, "DATASET_WRITES": { "type": "integer", "example": 0 }, "KEY_VALUE_STORE_READS": { "type": "integer", "example": 0 }, "KEY_VALUE_STORE_WRITES": { "type": "number", "example": 0.00005 }, "KEY_VALUE_STORE_LISTS": { "type": "integer", "example": 0 }, "REQUEST_QUEUE_READS": { "type": "integer", "example": 0 }, "REQUEST_QUEUE_WRITES": { "type": "integer", "example": 0 }, "DATA_TRANSFER_INTERNAL_GBYTES": { "type": "integer", "example": 0 }, "DATA_TRANSFER_EXTERNAL_GBYTES": { "type": "integer", "example": 0 }, "PROXY_RESIDENTIAL_TRANSFER_GBYTES": { "type": "integer", "example": 0 }, "PROXY_SERPS": { "type": "integer", "example": 0 } } } } } } } } } } ```