# ECMWF Weather Model Analysis Limitation Report

## Issue Summary
The current AI assistant tools have significant limitations when it comes to accessing and analyzing actual raw weather model data from sources like ECMWF (European Centre for Medium-Range Weather Forecasts) for specific regions such as Memphis, Tennessee.

## Current Capabilities and Limitations

### What I Can Do:
1. Search for URLs that point to weather model visualizations and forecasts
2. Use web_fetch to retrieve web pages (but not binary model files)
3. Use bash curl commands to access some web content
4. Parse HTML content from web pages

### What I Cannot Do:
1. Directly download binary model output files (GRIB format, etc.)
2. Access raw model data files that require authentication or specific APIs
3. Parse complex visualization files like SVGs, PNGs, or interactive charts
4. Download and analyze ensemble model data directly

## Specific Problem with Memphis Forecast Data

When searching for ECMWF forecast data for Memphis, TN, I found several relevant URLs:
- https://weather.us/forecast/4641239-memphis/meteogram
- https://weather.us/model-charts/euro/tennessee
- https://www.ecmwf.int/en/forecasts/datasets/open-data

However, these resources either:
- Have access restrictions (as demonstrated by the 403 error when trying to curl the meteogram page)
- Are designed for web browsers and don't expose raw data endpoints
- Require specific API access or authentication

## Impact on Analysis Quality
This limitation prevents me from providing:
1. Actual hour-by-hour forecasts from multiple model runs
2. Ensemble spread analysis 
3. Raw precipitation probability data
4. Detailed wind field information
5. Temperature profile data at various atmospheric levels

## Recommended Improvements
1. Add direct file download capability for specific model data formats
2. Provide access to ECMWF's public API endpoints
3. Enable downloading of GRIB files directly
4. Allow access to model data through authenticated API calls if needed
5. Include parsing capabilities for common weather data formats

## Workaround
For users needing actual model data, they should:
1. Visit ECMWF's official website directly
2. Access model data through their open data portal
3. Use specialized meteorological software that can interface directly with model data
4. Access regional NWS model data through their model data portals