// SCAN REPORT

NWS Weather & Aviation

58 tools. 4 can modify or destroy data without limits.

4 write tools that can modify data. Rate limits recommended.

Last updated: 6 Jun 2026

4 can modify or destroy data

54 read-only

58 tools total

Free to start. No card required.

TOOL MAP

Read (54) Write / Execute (4) Destructive / Financial (0)

CONTEXT-WINDOW COST

16,606 tokens of tool definitions, loaded on every request

8.3% of a 200k context window

1,612 heaviest tool: alerts_query

Full per-tool breakdown → Model it in the token calculator →

WHAT CAN GO WRONG

Write operations (latest_product_type_location, products_type, products_type_location) modify state. Without rate limits, an agent can make hundreds of changes in seconds — faster than any human can review or revert.

RECOMMENDED RULES

Rate limit write operations

{
  "latest_product_type_location": {
    "limits": [
      {
        "counter": "latest_product_type_location_per_hour",
        "window": "hour",
        "max": 30,
        "scope": "grant"
      }
    ]
  }
}

Prevents bulk unintended modifications from agents caught in loops.

Cap read operations

{
  "alerts_active": {
    "limits": [
      {
        "counter": "alerts_active_per_minute",
        "window": "minute",
        "max": 60,
        "scope": "grant"
      }
    ]
  }
}

Controls API costs and prevents retry loops from exhausting upstream rate limits.

ALL 58 NWS WEATHER & AVIATION TOOLS

WRITE 4 tools

Write latest_product_type_location Write products_type Write products_type_location Write products_type_locations

READ 54 tools

Read alerts_active Read alerts_active_area Read alerts_active_count Read alerts_active_region Read alerts_active_zone Read alerts_query Read alerts_single Read alerts_types Read cwa Read cwas Read cwsu Read glossary Read gridpoint Read gridpoint_forecast Read gridpoint_forecast_hourly Read gridpoint_stations Read icons Read icons_summary Read iconsDualCondition Read location_products Read obs_station Read obs_stations Read office Read office_headline Read office_headlines Read point Read point_stations Read product Read product_locations Read product_types Read products_query Read radar_profiler Read radar_queue Read radar_server Read radar_servers Read radar_station Read radar_station_alarms Read radar_stations Read satellite_thumbnails Read sigmet Read sigmetQuery Read sigmetsByATSU Read sigmetsByATSUByDate Read station_observation_latest Read station_observation_list Read station_observation_time Read taf Read tafs Read zone Read zone_forecast Read zone_list Read zone_list_type Read zone_obs Read zone_stations

FAQ

How do I prevent bulk modifications through NWS Weather & Aviation? +

The NWS Weather & Aviation server has 4 write tools including latest_product_type_location, products_type, products_type_location. Set a rate limit in your policy -- for example, 10 calls per hour prevents an agent from making more than 10 modifications per hour. PolicyLayer enforces this at the gateway, before calls reach NWS Weather & Aviation.

How many tools does the NWS Weather & Aviation MCP server expose? +

58 tools across 2 categories: Read, Write. 54 are read-only. 4 can modify, create, or delete data.

How do I enforce a policy on NWS Weather & Aviation? +

Register the NWS Weather & Aviation MCP server in PolicyLayer, apply the suggested rules above (adjust the limits to your use case), and point your AI client at the PolicyLayer proxy URL instead of the server directly. Your agents keep the same tools; PolicyLayer evaluates every call against policy before it executes. Nothing to install, live in minutes.

Enforce policy on every NWS Weather & Aviation tool call.

Deterministic rules across all 58 NWS Weather & Aviation tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.

SECURE NWS WEATHER & AVIATION →

Free to start. No card required.

4,600+ MCP servers and 31,000+ tools scanned and risk-classified.

NWS Weather & Aviation

// TOOL MAP

// CONTEXT-WINDOW COST

// WHAT CAN GO WRONG

// RECOMMENDED RULES

// ALL 58 NWS WEATHER & AVIATION TOOLS

// FAQ