Enhance weather narratives with detailed/concise format and Fahrenheit temperatures

Fix severe weather system - use derived hazard calculations from available data

Add comprehensive severe weather hazard forecasting system

Restructure weather narratives into daily paragraph format

Add extended 5-day weather narratives with day/night periods and rate limiting

Add weather.gov-style narrative forecasts

Fix forecast intervals to match ECMWF operational availability

Add hourly forecast support for first 24 hours

Fix ECMWF parameter availability issues and enhance data access

Add ECMWF weather forecast application