get_alerts
Get active NWS weather alerts for a US state. Returns current weather alerts including watches, warnings, and advisories issued by the National Weather Service. Args: state: Two-letter US state abbreviation (e.g. 'CA', 'TX', 'NY'). severity: Filter by severity level: 'Extreme', 'Severe', 'Moderate', or 'Minor'. event: Filter by event type (e.g. 'Tornado Warning', 'Flash Flood Watch'). limit: Maximum number of alerts to return (default 25, max 500).
eventlimitstate必填severity